/*
 * HackTheCore Custom Design System
 * Version: 4.0 - HackTheCore Dark Glass Tech Aesthetic
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================
   CSS VARIABLES - HackTheCore Design Tokens
   ============================================ */
:root {
    /* Primary Brand Colors - Blue/Purple */
    --htc-primary: #4f8ef7;
    --htc-primary-light: #8b5cf6;
    --htc-primary-dark: #3a7be0;
    --htc-primary-glow: rgba(79, 142, 247, 0.3);
    
    /* Accent Colors */
    --htc-accent: #4f8ef7;
    --htc-accent-hover: #8b5cf6;
    --htc-neon: #8b5cf6;
    
    /* Background Colors - Dark Mode */
    --htc-bg-primary: #060810;
    --htc-bg-secondary: #0a0e1a;
    --htc-bg-tertiary: #0e1225;
    --htc-bg-card: rgba(255, 255, 255, 0.035);
    --htc-bg-elevated: rgba(255, 255, 255, 0.06);
    --htc-bg-hover: rgba(255, 255, 255, 0.08);
    
    /* Surface Colors */
    --htc-surface-1: rgba(255, 255, 255, 0.04);
    --htc-surface-2: rgba(255, 255, 255, 0.06);
    --htc-surface-glass: rgba(6, 8, 16, 0.75);
    
    /* Text Colors */
    --htc-text-primary: #f0f4ff;
    --htc-text-secondary: #94a3b8;
    --htc-text-muted: #556376;
    --htc-text-dim: #4a5568;
    
    /* Status Colors */
    --htc-success: #10b981;
    --htc-warning: #f59e0b;
    --htc-error: #ef4444;
    --htc-info: #06b6d4;
    
    /* Terminal Colors */
    --htc-terminal-bg: #0d1117;
    --htc-terminal-header: linear-gradient(180deg, #1a1f2e 0%, #111520 100%);
    --htc-terminal-text: #22c55e;
    --htc-terminal-red: #ff5f56;
    --htc-terminal-yellow: #ffbd2e;
    --htc-terminal-green: #27c93f;
    
    /* Border Colors */
    --htc-border: rgba(255, 255, 255, 0.07);
    --htc-border-light: rgba(255, 255, 255, 0.12);
    --htc-border-accent: rgba(79, 142, 247, 0.3);
    
    /* Shadows & Effects */
    --htc-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
    --htc-shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.3);
    --htc-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5), 0 4px 16px rgba(0, 0, 0, 0.4);
    --htc-shadow-glow: 0 0 24px var(--htc-primary-glow);
    --htc-shadow-neon: 0 0 30px rgba(139, 92, 246, 0.25);
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --sidebar-width: 260px;
    --header-height: 64px;
    --container-max: 1280px;
    
    /* Z-Index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
    --z-overlay: 9000;
    --z-toast: 10000;
}

/* ============================================
   GLOBAL RESET & BASE
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--htc-bg-primary);
    color: var(--htc-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 60% at 10% 5%, rgba(79, 142, 247, 0.08) 0%, transparent 55%),
        radial-gradient(ellipse 70% 50% at 90% 85%, rgba(139, 92, 246, 0.07) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 50% 50%, rgba(79, 142, 247, 0.03) 0%, transparent 70%),
        radial-gradient(ellipse 40% 30% at 70% 20%, rgba(6, 182, 212, 0.04) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.25;
    color: var(--htc-text-primary);
    margin-bottom: var(--space-4);
}

h1 { font-size: 2.5rem; letter-spacing: -0.025em; }
h2 { font-size: 2rem; letter-spacing: -0.02em; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    color: var(--htc-text-secondary);
    margin-bottom: var(--space-4);
}

a {
    color: var(--htc-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--htc-accent-hover);
}

small {
    font-size: 0.875rem;
}

strong, b {
    font-weight: 600;
}

/* ============================================
   LAYOUT SYSTEM
   ============================================ */
.htc-page {
    display: flex;
    min-height: 100vh;
}

.htc-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
    padding: var(--space-8) var(--space-8) var(--space-6);
    display: flex;
    flex-direction: column;
}

.htc-container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-4);
    flex: 1;
}

.htc-section {
    padding: var(--space-16) 0;
}

.htc-section-header {
    margin-bottom: var(--space-10);
    text-align: center;
}

.htc-section-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--space-3);
    background: linear-gradient(135deg, var(--htc-text-primary), var(--htc-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.htc-section-subtitle {
    font-size: 1.1rem;
    color: var(--htc-text-secondary);
    line-height: 1.6;
}

/* ============================================
   NAVIGATION - SIDEBAR
   ============================================ */
.htc-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--htc-bg-secondary) 0%, rgba(8, 10, 20, 0.98) 100%);
    border-right: 1px solid var(--htc-border);
    display: flex;
    flex-direction: column;
    z-index: var(--z-fixed);
    overflow-x: hidden;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--htc-border) transparent;
}

.htc-sidebar::-webkit-scrollbar {
    width: 6px;
}

.htc-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.htc-sidebar::-webkit-scrollbar-thumb {
    background: var(--htc-border);
    border-radius: var(--radius-full);
}

.htc-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--htc-border-light);
}

.htc-sidebar-header {
    padding: var(--space-5) var(--space-5) var(--space-4);
    border-bottom: 1px solid var(--htc-border);
    background: rgba(255, 255, 255, 0.01);
}

.htc-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
}

.htc-brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--htc-primary), var(--htc-neon));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
    color: white;
    box-shadow: var(--htc-shadow-glow), 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.htc-brand:hover .htc-brand-icon {
    transform: scale(1.05);
    box-shadow: 0 0 32px var(--htc-primary-glow), 0 2px 12px rgba(0, 0, 0, 0.4);
}

.htc-brand-text {
    font-size: 1.25rem;
    font-weight: 800;
    background: linear-gradient(135deg, #4f8ef7 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.htc-sidebar-nav {
    flex: 1;
    padding: var(--space-4);
}

.htc-nav-section {
    margin-bottom: var(--space-5);
}

.htc-nav-section:not(:last-child)::after {
    content: '';
    display: block;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--htc-border), transparent);
    margin-top: var(--space-4);
}

.htc-nav-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--htc-text-muted);
    padding: var(--space-2) var(--space-3) var(--space-1);
    margin-bottom: var(--space-2);
}

.htc-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    color: var(--htc-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    margin-bottom: var(--space-1);
    position: relative;
    overflow: hidden;
    font-size: 0.9375rem;
}

.htc-nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, var(--htc-accent), var(--htc-neon));
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    transition: height var(--transition-base);
}

.htc-nav-item:hover {
    background: var(--htc-bg-hover);
    color: var(--htc-text-primary);
    transform: translateX(2px);
}

.htc-nav-item.active {
    background: rgba(79, 142, 247, 0.1);
    color: var(--htc-accent);
    font-weight: 500;
}

.htc-nav-item.active::before {
    height: 60%;
}

.htc-nav-item.active .htc-nav-icon {
    color: var(--htc-accent);
}

.htc-nav-icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
    transition: color var(--transition-fast);
}

.htc-sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--htc-border);
    background: rgba(0, 0, 0, 0.15);
}

.htc-logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-3);
    background: var(--htc-bg-elevated);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-lg);
    color: var(--htc-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.htc-logout-btn:hover {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.35);
    color: var(--htc-error);
    transform: translateY(-1px);
}

/* ============================================
   TOPBAR
   ============================================ */
.htc-topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    background: var(--htc-surface-glass);
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border-bottom: 1px solid var(--htc-border);
    padding: var(--space-4) var(--space-6);
    z-index: var(--z-sticky);
    height: var(--header-height);
    box-sizing: border-box;
}

.htc-topbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    height: 100%;
}

/* Mobile sidebar toggle - hidden on desktop, shown in @media (max-width: 768px) */
.htc-sidebar-toggle {
    display: none;
}

.htc-search {
    flex: 1;
    max-width: 480px;
    position: relative;
}

.htc-search-input {
    width: 100%;
    padding: var(--space-3) var(--space-4) var(--space-3) var(--space-12);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-xl);
    color: var(--htc-text-primary);
    font-size: 0.9rem;
    transition: all var(--transition-base);
}

.htc-search-input::placeholder {
    color: var(--htc-text-muted);
}

.htc-search-input:focus {
    outline: none;
    border-color: var(--htc-accent);
    box-shadow: 0 0 0 3px var(--htc-primary-glow);
    background: rgba(255, 255, 255, 0.06);
}

.htc-search-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--htc-text-muted);
    font-size: 1rem;
    transition: color var(--transition-fast);
}

.htc-search:focus-within .htc-search-icon {
    color: var(--htc-accent);
}

.htc-topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.htc-user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-4);
    background: var(--htc-bg-elevated);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.htc-user-menu:hover {
    border-color: var(--htc-border-accent);
    background: var(--htc-bg-hover);
    box-shadow: 0 0 12px rgba(79, 142, 247, 0.1);
}

.htc-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--htc-primary), var(--htc-neon));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: white;
    box-shadow: 0 0 8px rgba(79, 142, 247, 0.25);
}

.htc-user-name {
    font-weight: 600;
    color: var(--htc-text-primary);
    font-size: 0.9rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 150px;
}

/* ============================================
   CARDS
   ============================================ */
.htc-card {
    background: var(--htc-bg-card);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.htc-card:hover {
    border-color: var(--htc-border-light);
    transform: translateY(-2px);
    box-shadow: var(--htc-shadow-md);
}

.htc-card-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--htc-border);
    background: rgba(255, 255, 255, 0.01);
}

.htc-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.01em;
}

.htc-card-subtitle {
    font-size: 0.875rem;
    color: var(--htc-text-muted);
    margin-top: var(--space-1);
}

.htc-card-body {
    padding: var(--space-6);
}

.htc-card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--htc-border);
    background: rgba(255, 255, 255, 0.01);
}

/* Feature Card */
.htc-feature-card {
    padding: var(--space-8);
    background: linear-gradient(135deg, var(--htc-bg-card), var(--htc-bg-elevated));
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
    position: relative;
}

.htc-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--htc-primary), var(--htc-neon), var(--htc-primary));
    opacity: 0;
    transition: opacity var(--transition-base);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.htc-feature-card:hover {
    border-color: var(--htc-accent);
    transform: translateY(-4px);
    box-shadow: var(--htc-shadow-glow);
}

.htc-feature-card:hover::before {
    opacity: 1;
}

.htc-feature-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--htc-primary), var(--htc-neon));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: white;
    margin-bottom: var(--space-5);
    box-shadow: 0 4px 12px rgba(79, 142, 247, 0.25);
}

.htc-feature-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}

.htc-feature-desc {
    color: var(--htc-text-secondary);
    font-size: 0.9375rem;
    margin: 0;
    line-height: 1.65;
}

/* Stat Card */
.htc-stat-card {
    padding: var(--space-6);
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.htc-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--htc-primary), var(--htc-neon));
    opacity: 0.6;
}

.htc-stat-card:hover {
    border-color: var(--htc-border-light);
    transform: translateY(-3px);
    box-shadow: var(--htc-shadow-md);
}

.htc-stat-value {
    font-size: 2.25rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--htc-accent), var(--htc-neon));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.htc-stat-label {
    font-size: 0.8rem;
    color: var(--htc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 500;
}

/* ============================================
   BUTTONS
   ============================================ */
.htc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
}

.htc-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.htc-btn-primary {
    background: linear-gradient(135deg, #4f8ef7, #8b5cf6);
    color: white;
    box-shadow: 0 4px 16px rgba(79, 142, 247, 0.3);
}

.htc-btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(79, 142, 247, 0.4);
    filter: brightness(1.05);
}

.htc-btn-secondary {
    background: var(--htc-bg-elevated);
    border: 1px solid var(--htc-border);
    color: var(--htc-text-primary);
}

.htc-btn-secondary:hover:not(:disabled) {
    background: var(--htc-bg-hover);
    border-color: var(--htc-border-light);
    transform: translateY(-1px);
    box-shadow: var(--htc-shadow-sm);
}

.htc-btn-outline {
    background: transparent;
    border: 2px solid var(--htc-accent);
    color: var(--htc-accent);
}

.htc-btn-outline:hover:not(:disabled) {
    background: var(--htc-accent);
    color: white;
}

.htc-btn-ghost {
    background: transparent;
    color: var(--htc-text-secondary);
}

.htc-btn-ghost:hover:not(:disabled) {
    background: var(--htc-bg-hover);
    color: var(--htc-text-primary);
}

.htc-btn-danger {
    background: var(--htc-error);
    color: white;
}

.htc-btn-success {
    background: var(--htc-success);
    color: white;
}

/* Button Sizes */
.htc-btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
}

.htc-btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
}

.htc-btn-block {
    width: 100%;
    margin-top: 1rem;
    padding: 0.875rem 1.5rem;
    font-size: 1.05rem;
    font-weight: 700;
}

/* ============================================
   FORMS
   ============================================ */
.htc-form-group {
    margin-bottom: var(--space-5);
}

.htc-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--htc-text-muted);
    margin-bottom: var(--space-2);
}

.htc-input {
    width: 100%;
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-lg);
    color: var(--htc-text-primary);
    font-size: 0.9375rem;
    transition: all var(--transition-base);
}

.htc-input::placeholder {
    color: var(--htc-text-dim);
}

.htc-input:focus {
    outline: none;
    border-color: var(--htc-accent);
    box-shadow: 0 0 0 3px var(--htc-primary-glow);
    background: rgba(255, 255, 255, 0.06);
}

.htc-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================
   TOGGLE SWITCH (Settings page)
   ============================================ */
.htc-toggle {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 44px;
    height: 24px;
    background: var(--htc-bg-elevated);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-full);
    position: relative;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast);
    flex-shrink: 0;
}

.htc-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--htc-text-secondary);
    border-radius: var(--radius-full);
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.htc-toggle:checked {
    background: rgba(79, 142, 247, 0.2);
    border-color: var(--htc-accent);
}

.htc-toggle:checked::after {
    transform: translateX(20px);
    background: var(--htc-accent);
}

.settings-toggle-group {
    display: flex;
    flex-direction: column;
}

.settings-toggle {
    cursor: pointer;
}

/* ============================================
   BADGES & CHIPS
   ============================================ */
.htc-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 0.2rem var(--space-3);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.htc-badge-primary {
    background: rgba(79, 142, 247, 0.1);
    color: var(--htc-accent);
    border: 1px solid rgba(79, 142, 247, 0.2);
}

.htc-badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--htc-success);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.htc-badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--htc-warning);
    border: 1px solid rgba(245, 158, 11, 0.25);
}

.htc-badge-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--htc-error);
    border: 1px solid rgba(239, 68, 68, 0.25);
}

.htc-badge-secondary {
    background: rgba(148, 163, 184, 0.1);
    color: var(--htc-text-secondary);
    border: 1px solid rgba(148, 163, 184, 0.25);
}

.htc-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--htc-bg-elevated);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--htc-text-secondary);
}

/* ============================================
   PROGRESS BARS
   ============================================ */
.htc-progress {
    width: 100%;
    height: 8px;
    background: var(--htc-bg-elevated);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.htc-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--htc-primary), var(--htc-neon));
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
    position: relative;
    will-change: transform;
}

.htc-progress-bar[style*="width: 0"]::after,
.htc-progress-bar[style*="width:0"]::after {
    display: none;
}

.htc-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    animation: progressShimmer 2.5s ease-in-out infinite;
}

@keyframes progressShimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.htc-progress-bar-success {
    background: linear-gradient(90deg, #10b981, #22c55e);
}

.htc-progress-lg {
    height: 12px;
}

/* ============================================
   ALERTS
   ============================================ */
.htc-alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.htc-alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.htc-alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
}

.htc-alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #fcd34d;
}

.htc-alert-info {
    background: rgba(79, 142, 247, 0.08);
    border: 1px solid rgba(79, 142, 247, 0.25);
    color: #93c5fd;
}

/* ============================================
   MODULE CONTENT ELEMENTS
   ============================================ */
/* Note/Tip boxes */
.note {
    background: var(--htc-bg-elevated);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    color: var(--htc-text-secondary);
    margin: var(--space-4) 0;
    line-height: 1.6;
}

.note i {
    color: var(--htc-info);
    margin-right: var(--space-2);
}

/* Warning boxes */
.warning-box {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin: var(--space-4) 0;
    color: var(--htc-error);
    line-height: 1.6;
}

.warning-box strong {
    color: var(--htc-error);
}

/* ============================================
   TERMINAL-STYLE CODE BLOCKS
   ============================================ */
/* Base terminal styling - shared by .code-block, .module-main-card pre, and .htc-module-content pre */
.code-block,
.module-main-card pre,
.htc-module-content pre {
    background: var(--htc-terminal-bg);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-md);
    padding: 0;
    overflow: hidden;
    margin: var(--space-4) 0;
    position: relative;
}

/* Terminal header bar */
.code-block::before,
.module-main-card pre::before,
.htc-module-content pre::before {
    content: '';
    display: block;
    background: var(--htc-terminal-header);
    border-bottom: 1px solid var(--htc-border);
    height: 32px;
}

/* Terminal window buttons (red, yellow, green dots) */
.code-block::after,
.module-main-card pre::after,
.htc-module-content pre::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 12px;
    width: 12px;
    height: 12px;
    background: var(--htc-terminal-red);
    border-radius: 50%;
    box-shadow: 
        20px 0 0 var(--htc-terminal-yellow),
        40px 0 0 var(--htc-terminal-green);
}

/* Terminal code content */
.code-block code,
.module-main-card pre code,
.htc-module-content pre code {
    display: block;
    padding: var(--space-4);
    color: var(--htc-terminal-text);
    font-family: ui-monospace, Menlo, Monaco, 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

/* Module content styling */
.module-main-card p {
    line-height: 1.7;
}

.module-main-card ul,
.module-main-card ol {
    padding-left: var(--space-6);
    margin-bottom: var(--space-4);
    color: var(--htc-text-secondary);
}

.module-main-card ul li,
.module-main-card ol li {
    margin-bottom: var(--space-2);
    line-height: 1.6;
}

.module-main-card kbd {
    background: var(--htc-bg-tertiary);
    border: 1px solid var(--htc-border);
    padding: 0.15rem 0.35rem;
    border-radius: var(--radius-sm);
    font-family: ui-monospace, Menlo, Monaco, 'Courier New', monospace;
    font-size: 0.875rem;
}

/* Dark table styles for modules */
.module-main-card .table-responsive {
    overflow-x: auto;
    margin: var(--space-4) 0;
}

.module-main-card .table {
    width: 100%;
    border-collapse: collapse;
}

.module-main-card .table.table-dark {
    background: var(--htc-bg-elevated);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.module-main-card .table.table-dark th {
    background: var(--htc-bg-tertiary);
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-weight: 600;
    color: var(--htc-text-primary);
    border-bottom: 1px solid var(--htc-border);
}

.module-main-card .table.table-dark td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--htc-border);
    color: var(--htc-text-secondary);
}

.module-main-card .table.table-dark tr:last-child td {
    border-bottom: none;
}

.module-main-card .table.table-dark code {
    background: var(--htc-bg-primary);
    padding: 0.1rem 0.3rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

/* ============================================
   TABLES
   ============================================ */
.htc-table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-xl);
}

.htc-table {
    width: 100%;
    border-collapse: collapse;
}

.htc-table th {
    padding: var(--space-4);
    text-align: left;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--htc-text-muted);
    background: var(--htc-bg-secondary);
    border-bottom: 1px solid var(--htc-border);
}

.htc-table td {
    padding: var(--space-4);
    border-bottom: 1px solid var(--htc-border);
    color: var(--htc-text-primary);
}

.htc-table tr:last-child td {
    border-bottom: none;
}

.htc-table tr:hover td {
    background: var(--htc-bg-hover);
}

/* ============================================
   GRID SYSTEM
   ============================================ */
.htc-grid {
    display: grid;
    gap: var(--space-6);
}

.htc-grid-2 { grid-template-columns: repeat(2, 1fr); }
.htc-grid-3 { grid-template-columns: repeat(3, 1fr); }
.htc-grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .htc-grid-3, .htc-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .htc-grid-2, .htc-grid-3, .htc-grid-4 { grid-template-columns: 1fr; }
    
    .htc-main {
        margin-left: 0;
        margin-top: var(--header-height);
        padding: var(--space-4);
    }
    
    .htc-sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        box-shadow: none;
    }
    
    .htc-sidebar.open {
        transform: translateX(0);
        box-shadow: 8px 0 24px rgba(0, 0, 0, 0.5);
    }
    
    /* Mobile sidebar toggle (hamburger) - visible only on mobile */
    .htc-sidebar-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 40px;
        height: 40px;
        padding: 8px;
        background: var(--htc-bg-elevated);
        border: 1px solid var(--htc-border);
        border-radius: var(--radius-lg);
        cursor: pointer;
        color: var(--htc-text-primary);
        transition: all var(--transition-fast);
    }
    
    .htc-sidebar-toggle:hover {
        background: var(--htc-bg-hover);
        border-color: var(--htc-border-light);
    }
    
    .htc-sidebar-toggle span {
        display: block;
        height: 2px;
        background: currentColor;
        border-radius: 2px;
        transition: transform var(--transition-base), opacity var(--transition-base);
        transform-origin: center;
    }
    
    .htc-sidebar-toggle.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .htc-sidebar-toggle.open span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }
    
    .htc-sidebar-toggle.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    /* Sidebar overlay - visible when sidebar is open on mobile */
    .htc-sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: calc(var(--z-fixed) - 1);
        opacity: 0;
        transition: opacity var(--transition-base);
    }
    
    body.htc-sidebar-open .htc-sidebar-overlay {
        display: block;
        opacity: 1;
        pointer-events: auto;
    }
    
    .htc-topbar {
        left: 0;
        padding: var(--space-2) var(--space-3);
    }
    
    .htc-topbar-content {
        gap: var(--space-2);
    }
    
    /* Spawn VM button on mobile - show text */
    .htc-topbar .htc-btn-spawn {
        padding: var(--space-2) var(--space-3);
        gap: var(--space-2);
        font-size: 0.8rem;
    }
    
    .htc-topbar .htc-btn-spawn i {
        font-size: 1.1rem;
    }
    
    /* Compact user menu on mobile - avatar only */
    .htc-user-name {
        display: none;
    }
    
    .htc-user-menu > .ti-chevron-down {
        display: none;
    }
    
    .htc-user-menu {
        padding: var(--space-2);
        gap: 0;
        border-radius: var(--radius-full);
    }
    
    /* Smaller language switcher */
    .htc-lang-btn {
        padding: 3px 7px;
        font-size: 0.7rem;
    }
    
    .htc-topbar-actions {
        gap: var(--space-2);
    }
    
    /* Cards should not lift on touch devices */
    .htc-card:hover {
        transform: none;
    }
    
    /* Academy/Programming/Machines page mobile */
    body.htc-academy-page,
    body.htc-programming-page,
    body.htc-machines-page {
        height: auto;
        min-height: 100vh;
        overflow: auto;
    }
    
    body.htc-academy-page .htc-main,
    body.htc-programming-page .htc-main,
    body.htc-machines-page .htc-main {
        margin-left: 0;
        overflow: visible;
        height: auto;
        min-height: 0;
    }
    
    body.htc-academy-page .academy-sticky-header,
    body.htc-programming-page .academy-sticky-header {
        padding: var(--space-4) var(--space-4) var(--space-3);
    }
    
    body.htc-academy-page .modules-scroll-container,
    body.htc-programming-page .modules-scroll-container {
        overflow: visible;
        padding: var(--space-3) var(--space-4) var(--space-4);
    }

    body.htc-machines-page .machines-sticky-header {
        padding: var(--space-4) var(--space-4) var(--space-3);
    }

    body.htc-machines-page .machines-scroll-container {
        overflow: visible;
        padding: var(--space-3) var(--space-4) var(--space-4);
    }
    
    /* Hero section compact */
    .htc-hero-title {
        font-size: 2rem;
    }
    
    .htc-section-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .htc-lang-switch {
        display: none;
    }
    
    .htc-topbar {
        padding: var(--space-2);
    }
}

/* ============================================
   HERO SECTION
   ============================================ */
.htc-hero {
    text-align: center;
    padding: var(--space-20) 0;
}

.htc-hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    background: linear-gradient(135deg, var(--htc-text-primary) 0%, var(--htc-accent) 50%, var(--htc-neon) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.htc-hero-subtitle {
    font-size: 1.25rem;
    color: var(--htc-text-secondary);
    max-width: 640px;
    margin: 0 auto var(--space-10);
}

.htc-hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* ============================================
   AUTH PAGES (Login/Register)
   ============================================ */
.htc-auth-header {
    padding: var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.htc-auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
}

.htc-auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--htc-bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    box-shadow: var(--htc-shadow-lg);
    position: relative;
    overflow: hidden;
}

.htc-auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--htc-primary), var(--htc-neon), var(--htc-primary));
}

.htc-auth-title {
    font-size: 1.75rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--space-2);
    letter-spacing: -0.02em;
}

.htc-auth-subtitle {
    text-align: center;
    color: var(--htc-text-muted);
    margin-bottom: var(--space-8);
    font-size: 1rem;
}

/* ============================================
   DASHBOARD
   ============================================ */
.htc-dashboard-header {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--htc-border);
}

.htc-dashboard-title {
    font-size: 1.85rem;
    font-weight: 800;
    margin-bottom: var(--space-2);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--htc-text-primary) 0%, var(--htc-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.htc-dashboard-subtitle {
    color: var(--htc-text-secondary);
    font-size: 0.95rem;
}

.htc-stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

@media (max-width: 1024px) {
    .htc-stats-row {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }
}

@media (max-width: 640px) {
    .htc-stats-row {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 400px) {
    .htc-stats-row {
        grid-template-columns: 1fr;
    }
}

/* Profile Summary */
.htc-profile-summary {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    padding: var(--space-6);
    background: linear-gradient(135deg, rgba(79, 142, 247, 0.04), rgba(139, 92, 246, 0.04));
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-2xl);
    position: relative;
    overflow: hidden;
}

.htc-profile-summary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--htc-primary), var(--htc-neon));
    opacity: 0.5;
}

.htc-profile-avatar {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--htc-primary), var(--htc-neon));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(79, 142, 247, 0.3);
    flex-shrink: 0;
}

.htc-profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.htc-profile-info {
    flex: 1;
}

.htc-profile-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-1);
    overflow-wrap: break-word;
    word-break: break-word;
}

.htc-profile-rank {
    color: var(--htc-text-secondary);
    font-size: 0.9375rem;
}

/* ============================================
   MODULE/ACADEMY CARDS
   ============================================ */
.htc-module-card {
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.htc-module-card:hover {
    border-color: rgba(79, 142, 247, 0.25);
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 16px rgba(79, 142, 247, 0.1);
}

.htc-module-banner {
    height: 160px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.htc-module-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--htc-bg-card), transparent);
}

.htc-module-title {
    position: absolute;
    bottom: var(--space-4);
    left: var(--space-4);
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    z-index: 1;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

/* Module Banner Themes - CSS-based banners matching HTC design */
.htc-module-banner.banner-intro-to-academy {
    background: linear-gradient(135deg, var(--htc-primary-dark) 0%, var(--htc-bg-tertiary) 50%, var(--htc-bg-secondary) 100%);
    position: relative;
}

.htc-module-banner.banner-intro-to-academy::before {
    content: '\eb44'; /* graduation cap icon from tabler */
    font-family: 'tabler-icons';
    position: absolute;
    right: var(--space-6);
    top: 50%;
    transform: translateY(-50%);
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.15);
    z-index: 0;
}

.htc-module-banner.banner-web-requests {
    background: 
        linear-gradient(135deg, rgba(13, 74, 110, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(29, 78, 216, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(79, 142, 247, 0.08) 40px,
            rgba(79, 142, 247, 0.08) 42px
        ),
        repeating-linear-gradient(
            0deg,
            transparent 0px,
            transparent 40px,
            rgba(79, 142, 247, 0.06) 40px,
            rgba(79, 142, 247, 0.06) 42px
        );
    position: relative;
    overflow: hidden;
}

/* HTTP request/response visualization for web-requests banner */
.htc-module-banner.banner-web-requests::before {
    content: 'GET / HTTP/1.1\A Host: hackthecore.com\A User-Agent: HTC/1.0\A Accept: */*';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(79, 142, 247, 0.30);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* Network connection lines decoration */
.htc-module-banner.banner-web-requests .htc-module-title::before {
    content: '';
    position: absolute;
    right: 60px;
    top: -80px;
    width: 100px;
    height: 100px;
    border: 2px solid rgba(79, 142, 247, 0.16);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 142, 247, 0.08) 0%, transparent 70%);
}

/* Add subtle grid pattern overlay for techy look */
.htc-module-banner.banner-intro-to-academy,
.htc-module-banner.banner-web-requests {
    background-size: cover;
}

.htc-module-banner.banner-intro-to-academy::after,
.htc-module-banner.banner-web-requests::after {
    background: 
        linear-gradient(to top, var(--htc-bg-card) 0%, transparent 60%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        );
}

/* ===== Linux Fundamentals Module Banner ===== */
.htc-module-banner.banner-linux-fundamentals {
    background: 
        linear-gradient(135deg, rgba(22, 78, 99, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(21, 128, 61, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(34, 197, 94, 0.1) 40px,
            rgba(34, 197, 94, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-linux-fundamentals::before {
    content: '$ ls -la\A drwxr-xr-x 2 user\A -rw-r--r-- 1 root\A $ cd /home';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(34, 197, 94, 0.35);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* ===== Network Fundamentals Module Banner ===== */
.htc-module-banner.banner-network-fundamentals {
    background: 
        linear-gradient(135deg, rgba(88, 28, 135, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(67, 56, 202, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(139, 92, 246, 0.1) 40px,
            rgba(139, 92, 246, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-network-fundamentals::before {
    content: 'OSI Layer 7: App\A Layer 4: TCP/UDP\A Layer 3: IP\A Layer 1: Physical';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(139, 92, 246, 0.4);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* ===== SQL Fundamentals Module Banner ===== */
.htc-module-banner.banner-sql-fundamentals {
    background: 
        linear-gradient(135deg, rgba(22, 101, 52, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(34, 197, 94, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(34, 197, 94, 0.1) 40px,
            rgba(34, 197, 94, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-sql-fundamentals::before {
    content: 'SELECT * FROM users\A INNER JOIN orders\A WHERE id = ?';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(34, 197, 94, 0.4);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* ===== Information Gathering Module Banner ===== */
.htc-module-banner.banner-information-gathering {
    background: 
        linear-gradient(135deg, rgba(180, 83, 9, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(217, 119, 6, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(251, 191, 36, 0.1) 40px,
            rgba(251, 191, 36, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-information-gathering::before {
    content: '$ whois target.com\A $ dig ANY target\A $ theHarvester -d\A OSINT: gathering...';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(251, 191, 36, 0.4);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* ===== Nmap Basics Module Banner ===== */
.htc-module-banner.banner-nmap-basics {
    background: 
        linear-gradient(135deg, rgba(127, 29, 29, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(185, 28, 28, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(239, 68, 68, 0.1) 40px,
            rgba(239, 68, 68, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-nmap-basics::before {
    content: '$ nmap -sV target\A PORT   STATE\A 22/tcp open ssh\A 80/tcp open http';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(239, 68, 68, 0.4);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* ===== Password Attacks Module Banner ===== */
.htc-module-banner.banner-password-attacks {
    background: 
        linear-gradient(135deg, rgba(107, 33, 168, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(126, 34, 206, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(168, 85, 247, 0.1) 40px,
            rgba(168, 85, 247, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-password-attacks::before {
    content: '$ hashcat -m 0\A 5d41402abc4b2a76\A $ john hashes.txt\A Cracking: ████░░';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(168, 85, 247, 0.4);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* ===== Bash Scripting Module Banner ===== */
.htc-module-banner.banner-bash-scripting {
    background:
        linear-gradient(135deg, rgba(22, 78, 99, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(5, 150, 105, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(16, 185, 129, 0.08) 40px, rgba(16, 185, 129, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-bash-scripting::before {
    content: '#!/bin/bash\A for i in $(seq 1 5)\A do echo $i\A done';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(16, 185, 129, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== OWASP Top 10 Module Banner ===== */
.htc-module-banner.banner-owasp-top-10 {
    background:
        linear-gradient(135deg, rgba(127, 29, 29, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(217, 119, 6, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(251, 191, 36, 0.08) 40px, rgba(251, 191, 36, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-owasp-top-10::before {
    content: 'A01 Access Control\A A02 Crypto Failures\A A03 Injection\A A07 Auth Failures';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(251, 191, 36, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Reverse Shells Module Banner ===== */
.htc-module-banner.banner-reverse-shells {
    background:
        linear-gradient(135deg, rgba(88, 28, 135, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(139, 92, 246, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(139, 92, 246, 0.08) 40px, rgba(139, 92, 246, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-reverse-shells::before {
    content: '$ nc -lvnp 4444\A listening on 0.0.0.0\A connect from target\A $ whoami';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(139, 92, 246, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Windows Fundamentals Module Banner ===== */
.htc-module-banner.banner-windows-fundamentals {
    background:
        linear-gradient(135deg, rgba(30, 64, 175, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(59, 130, 246, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(59, 130, 246, 0.08) 40px, rgba(59, 130, 246, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-windows-fundamentals::before {
    content: 'C:\\> ipconfig\A C:\\> net user\A C:\\> systeminfo\A PS> Get-Process';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(59, 130, 246, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Active Directory Module Banner ===== */
.htc-module-banner.banner-active-directory-basics {
    background:
        linear-gradient(135deg, rgba(120, 53, 15, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(217, 119, 6, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(251, 191, 36, 0.08) 40px, rgba(251, 191, 36, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-active-directory-basics::before {
    content: 'DC01.corp.local\A Kerberos TGT\A BloodHound\A DCSync';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(251, 191, 36, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Python for Hackers Module Banner ===== */
.htc-module-banner.banner-python-for-hackers {
    background:
        linear-gradient(135deg, rgba(21, 94, 117, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(6, 182, 212, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(6, 182, 212, 0.08) 40px, rgba(6, 182, 212, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-python-for-hackers::before {
    content: 'import requests\A import socket\A r = requests.get(url)\A s.connect((ip, port))';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(6, 182, 212, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Metasploit Basics Module Banner ===== */
.htc-module-banner.banner-metasploit-basics {
    background:
        linear-gradient(135deg, rgba(55, 48, 163, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(99, 102, 241, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(99, 102, 241, 0.08) 40px, rgba(99, 102, 241, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-metasploit-basics::before {
    content: 'msf6 > search\A msf6 > use exploit\A msf6 > set RHOSTS\A meterpreter >';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(99, 102, 241, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Web Enumeration Module Banner ===== */
.htc-module-banner.banner-web-enumeration {
    background:
        linear-gradient(135deg, rgba(15, 118, 110, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(20, 184, 166, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(20, 184, 166, 0.08) 40px, rgba(20, 184, 166, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-web-enumeration::before {
    content: '$ gobuster dir -u\A /admin (200)\A /backup (403)\A robots.txt';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(20, 184, 166, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Wireless Attacks Module Banner ===== */
.htc-module-banner.banner-wireless-attacks {
    background:
        linear-gradient(135deg, rgba(107, 33, 168, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(168, 85, 247, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(168, 85, 247, 0.08) 40px, rgba(168, 85, 247, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-wireless-attacks::before {
    content: '$ airmon-ng start\A $ airodump-ng wlan0\A WPA2 handshake\A $ aircrack-ng';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(168, 85, 247, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* Apply shared styles to all module banners */
.htc-module-banner.banner-linux-fundamentals,
.htc-module-banner.banner-network-fundamentals,
.htc-module-banner.banner-sql-fundamentals,
.htc-module-banner.banner-bash-scripting,
.htc-module-banner.banner-windows-fundamentals,
.htc-module-banner.banner-active-directory-basics,
.htc-module-banner.banner-python-for-hackers,
.htc-module-banner.banner-metasploit-basics,
.htc-module-banner.banner-web-enumeration,
.htc-module-banner.banner-wireless-attacks,
.htc-module-banner.banner-owasp-top-10,
.htc-module-banner.banner-reverse-shells,
.htc-module-banner.banner-information-gathering,
.htc-module-banner.banner-nmap-basics,
.htc-module-banner.banner-password-attacks {
    background-size: cover;
}

.htc-module-banner.banner-linux-fundamentals::after,
.htc-module-banner.banner-network-fundamentals::after,
.htc-module-banner.banner-sql-fundamentals::after,
.htc-module-banner.banner-bash-scripting::after,
.htc-module-banner.banner-windows-fundamentals::after,
.htc-module-banner.banner-active-directory-basics::after,
.htc-module-banner.banner-python-for-hackers::after,
.htc-module-banner.banner-metasploit-basics::after,
.htc-module-banner.banner-web-enumeration::after,
.htc-module-banner.banner-wireless-attacks::after,
.htc-module-banner.banner-owasp-top-10::after,
.htc-module-banner.banner-reverse-shells::after,
.htc-module-banner.banner-information-gathering::after,
.htc-module-banner.banner-nmap-basics::after,
.htc-module-banner.banner-password-attacks::after {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(to top, var(--htc-bg-card) 0%, transparent 60%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        );
    pointer-events: none;
}

/* ===== Web Attacks Module Banner ===== */
.htc-module-banner.banner-web-attacks {
    background: 
        linear-gradient(135deg, rgba(153, 27, 27, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(220, 38, 38, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(248, 113, 113, 0.1) 40px,
            rgba(248, 113, 113, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-web-attacks::before {
    content: "' OR '1'='1\A <script>alert()\A UNION SELECT\A ../../../etc";
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(248, 113, 113, 0.4);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* ===== File Transfers Module Banner ===== */
.htc-module-banner.banner-file-transfers {
    background: 
        linear-gradient(135deg, rgba(14, 116, 144, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(6, 182, 212, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(34, 211, 238, 0.1) 40px,
            rgba(34, 211, 238, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-file-transfers::before {
    content: '$ python3 -m http\A $ wget http://...\A $ nc -lvnp 4444\A Downloading...';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(34, 211, 238, 0.4);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* Apply shared styles to web-attacks and file-transfers banners */
.htc-module-banner.banner-web-attacks,
.htc-module-banner.banner-file-transfers {
    background-size: cover;
}

.htc-module-banner.banner-web-attacks::after,
.htc-module-banner.banner-file-transfers::after {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(to top, var(--htc-bg-card) 0%, transparent 60%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        );
    pointer-events: none;
}

/* ===== Cryptography Basics Module Banner ===== */
.htc-module-banner.banner-cryptography-basics {
    background: 
        linear-gradient(135deg, rgba(124, 58, 237, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(167, 139, 250, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(167, 139, 250, 0.1) 40px,
            rgba(167, 139, 250, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-cryptography-basics::before {
    content: '🔐 AES-256-CBC\A RSA 4096-bit\A SHA-256 hash\A Base64 → decode';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(167, 139, 250, 0.4);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* ===== Privilege Escalation Module Banner ===== */
.htc-module-banner.banner-privilege-escalation {
    background: 
        linear-gradient(135deg, rgba(220, 38, 38, 0.90) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(251, 146, 60, 0.85) 100%),
        repeating-linear-gradient(
            90deg,
            transparent 0px,
            transparent 40px,
            rgba(251, 146, 60, 0.1) 40px,
            rgba(251, 146, 60, 0.1) 42px
        );
    position: relative;
    overflow: hidden;
}

.htc-module-banner.banner-privilege-escalation::before {
    content: '$ find / -perm -4000\A $ sudo -l\A # root shell\A uid=0(root)';
    white-space: pre;
    font-family: 'Courier New', monospace;
    font-size: 0.65rem;
    position: absolute;
    left: var(--space-4);
    top: var(--space-3);
    color: rgba(251, 146, 60, 0.4);
    z-index: 0;
    line-height: 1.4;
    text-align: left;
}

/* Apply shared styles to cryptography and privilege-escalation banners */
.htc-module-banner.banner-cryptography-basics,
.htc-module-banner.banner-privilege-escalation {
    background-size: cover;
}

.htc-module-banner.banner-cryptography-basics::after,
.htc-module-banner.banner-privilege-escalation::after {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(to top, var(--htc-bg-card) 0%, transparent 60%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        );
    pointer-events: none;
}

/* =====================================================
   PROGRAMMING COURSE BANNERS
   ===================================================== */

/* ===== Programming Basics Banner ===== */
.htc-module-banner.banner-programming-basics {
    background:
        linear-gradient(135deg, rgba(6, 182, 212, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(17, 29, 50, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(6, 182, 212, 0.08) 40px, rgba(6, 182, 212, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-programming-basics::before {
    content: 'int x = 42;\A string s = "Hello";\A if (x > 0) {\A   print(s);\A }';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(6, 182, 212, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Python Fundamentals Banner ===== */
.htc-module-banner.banner-python-fundamentals {
    background:
        linear-gradient(135deg, rgba(34, 197, 94, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(5, 150, 105, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(5, 150, 105, 0.08) 40px, rgba(5, 150, 105, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-python-fundamentals::before {
    content: 'def hello():\A   name = "World"\A   print(f"Hi {name}")\A hello()';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(5, 150, 105, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Bash Basics Banner ===== */
.htc-module-banner.banner-bash-basics {
    background:
        linear-gradient(135deg, rgba(16, 185, 129, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(22, 78, 99, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(22, 78, 99, 0.08) 40px, rgba(22, 78, 99, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-bash-basics::before {
    content: '#!/bin/bash\A echo "Hello"\A for f in *.txt; do\A   cat "$f"\A done';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(22, 78, 99, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== HTML & CSS Basics Banner ===== */
.htc-module-banner.banner-html-css-basics {
    background:
        linear-gradient(135deg, rgba(249, 115, 22, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(220, 38, 38, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(220, 38, 38, 0.08) 40px, rgba(220, 38, 38, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-html-css-basics::before {
    content: '<div class="box">\A   <h1>Hello</h1>\A   <p>World</p>\A </div>';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(220, 38, 38, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== JavaScript Basics Banner ===== */
.htc-module-banner.banner-javascript-basics {
    background:
        linear-gradient(135deg, rgba(234, 179, 8, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(217, 119, 6, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(217, 119, 6, 0.08) 40px, rgba(217, 119, 6, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-javascript-basics::before {
    content: 'const greet = (n) => {\A   console.log(n);\A };\A greet("World");';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(217, 119, 6, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Git Version Control Banner ===== */
.htc-module-banner.banner-git-version-control {
    background:
        linear-gradient(135deg, rgba(239, 68, 68, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(153, 27, 27, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(153, 27, 27, 0.08) 40px, rgba(153, 27, 27, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-git-version-control::before {
    content: '$ git init\A $ git add .\A $ git commit -m "init"\A $ git push origin main';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(153, 27, 27, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Python Data Structures Banner ===== */
.htc-module-banner.banner-python-data-structures {
    background:
        linear-gradient(135deg, rgba(22, 163, 74, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(132, 204, 22, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(132, 204, 22, 0.08) 40px, rgba(132, 204, 22, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-python-data-structures::before {
    content: 'data = {"key": [1,2,3]}\A for k, v in data.items():\A   print(k, sum(v))';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(132, 204, 22, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Python OOP Banner ===== */
.htc-module-banner.banner-python-oop {
    background:
        linear-gradient(135deg, rgba(139, 92, 246, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(124, 58, 237, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(124, 58, 237, 0.08) 40px, rgba(124, 58, 237, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-python-oop::before {
    content: 'class Hero:\A   def __init__(self, name):\A     self.name = name\A   def attack(self):';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(124, 58, 237, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== SQL for Developers Banner ===== */
.htc-module-banner.banner-sql-for-developers {
    background:
        linear-gradient(135deg, rgba(59, 130, 246, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(99, 102, 241, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(99, 102, 241, 0.08) 40px, rgba(99, 102, 241, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-sql-for-developers::before {
    content: 'SELECT u.name, COUNT(*)\A FROM users u\A JOIN orders o ON u.id\A GROUP BY u.name;';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(99, 102, 241, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== API Basics Banner ===== */
.htc-module-banner.banner-api-basics {
    background:
        linear-gradient(135deg, rgba(6, 182, 212, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(14, 165, 233, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(14, 165, 233, 0.08) 40px, rgba(14, 165, 233, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-api-basics::before {
    content: 'GET /api/users HTTP/1.1\A Host: example.com\A Content-Type: json\A Authorization: Bearer';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(14, 165, 233, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Regex Fundamentals Banner ===== */
.htc-module-banner.banner-regex-fundamentals {
    background:
        linear-gradient(135deg, rgba(236, 72, 153, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(244, 63, 94, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(244, 63, 94, 0.08) 40px, rgba(244, 63, 94, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-regex-fundamentals::before {
    content: '/^[a-zA-Z0-9]+$/\A /\\d{3}-\\d{4}/\A /(https?):\\/\\//\A s/old/new/g';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(244, 63, 94, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Linux Administration Banner ===== */
.htc-module-banner.banner-linux-administration {
    background:
        linear-gradient(135deg, rgba(22, 163, 74, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(5, 150, 105, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(5, 150, 105, 0.08) 40px, rgba(5, 150, 105, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-linux-administration::before {
    content: '# systemctl status\A # useradd -m user1\A # crontab -e\A # journalctl -u nginx';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(5, 150, 105, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== C Programming Banner ===== */
.htc-module-banner.banner-c-programming {
    background:
        linear-gradient(135deg, rgba(100, 116, 139, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(71, 85, 105, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(71, 85, 105, 0.08) 40px, rgba(71, 85, 105, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-c-programming::before {
    content: '#include <stdio.h>\A int main() {\A   int *p = malloc(8);\A   free(p);\A }';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(71, 85, 105, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== PHP Basics Banner ===== */
.htc-module-banner.banner-php-basics {
    background:
        linear-gradient(135deg, rgba(99, 102, 241, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(124, 58, 237, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(124, 58, 237, 0.08) 40px, rgba(124, 58, 237, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-php-basics::before {
    content: '<?php\A $name = $_GET["user"];\A echo htmlspecialchars(\A   $name);\A ?>';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(124, 58, 237, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== PowerShell Basics Banner ===== */
.htc-module-banner.banner-powershell-basics {
    background:
        linear-gradient(135deg, rgba(59, 130, 246, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(6, 182, 212, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(6, 182, 212, 0.08) 40px, rgba(6, 182, 212, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-powershell-basics::before {
    content: 'Get-Process | Sort\A Get-Service -Name w*\A $users = Get-ADUser\A Export-Csv report.csv';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(6, 182, 212, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Docker Basics Banner ===== */
.htc-module-banner.banner-docker-basics {
    background:
        linear-gradient(135deg, rgba(14, 165, 233, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(37, 99, 235, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(37, 99, 235, 0.08) 40px, rgba(37, 99, 235, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-docker-basics::before {
    content: 'FROM python:3.11\A WORKDIR /app\A COPY . .\A CMD ["python","app.py"]';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(37, 99, 235, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Networking for Devs Banner ===== */
.htc-module-banner.banner-networking-for-devs {
    background:
        linear-gradient(135deg, rgba(20, 184, 166, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(6, 182, 212, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(6, 182, 212, 0.08) 40px, rgba(6, 182, 212, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-networking-for-devs::before {
    content: 'TCP 192.168.1.1:443\A DNS A record query\A HTTP/1.1 200 OK\A Socket ESTABLISHED';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(6, 182, 212, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Data Structures & Algorithms Banner ===== */
.htc-module-banner.banner-data-structures-algorithms {
    background:
        linear-gradient(135deg, rgba(245, 158, 11, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(234, 88, 12, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(234, 88, 12, 0.08) 40px, rgba(234, 88, 12, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-data-structures-algorithms::before {
    content: 'O(n log n) — sort\A O(1) — hash lookup\A O(n) — linear scan\A Stack: LIFO | Queue: FIFO';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(234, 88, 12, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Python Automation Banner ===== */
.htc-module-banner.banner-python-automation {
    background:
        linear-gradient(135deg, rgba(34, 197, 94, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(20, 184, 166, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(20, 184, 166, 0.08) 40px, rgba(20, 184, 166, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-python-automation::before {
    content: 'import schedule\A import requests\A def scrape():\A   soup = BeautifulSoup(r)';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(20, 184, 166, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== JSON & XML Processing Banner ===== */
.htc-module-banner.banner-json-xml-processing {
    background:
        linear-gradient(135deg, rgba(217, 119, 6, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(202, 138, 4, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(202, 138, 4, 0.08) 40px, rgba(202, 138, 4, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-json-xml-processing::before {
    content: '{"name": "HTC",\A  "version": "1.0",\A  "modules": [21],\A  "active": true}';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(202, 138, 4, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Error Handling & Debugging Banner ===== */
.htc-module-banner.banner-error-handling-debugging {
    background:
        linear-gradient(135deg, rgba(239, 68, 68, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(234, 88, 12, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(234, 88, 12, 0.08) 40px, rgba(234, 88, 12, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-error-handling-debugging::before {
    content: 'try:\A   result = 1 / 0\A except ZeroDivision:\A   log.error(traceback)';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(234, 88, 12, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Testing Basics Banner ===== */
.htc-module-banner.banner-testing-basics {
    background:
        linear-gradient(135deg, rgba(34, 197, 94, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(16, 185, 129, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(16, 185, 129, 0.08) 40px, rgba(16, 185, 129, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-testing-basics::before {
    content: 'def test_add():\A   assert add(2,3) == 5\A   assert add(-1,1) == 0\A # pytest -v --cov';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(16, 185, 129, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Python Networking Banner ===== */
.htc-module-banner.banner-python-networking {
    background:
        linear-gradient(135deg, rgba(168, 85, 247, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(139, 92, 246, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(139, 92, 246, 0.08) 40px, rgba(139, 92, 246, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-python-networking::before {
    content: 'import socket\A s = socket.socket()\A s.connect(("host",80))\A s.send(b"GET / HTTP")';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(139, 92, 246, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== CSS Advanced Banner ===== */
.htc-module-banner.banner-css-advanced {
    background:
        linear-gradient(135deg, rgba(244, 63, 94, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(236, 72, 153, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(236, 72, 153, 0.08) 40px, rgba(236, 72, 153, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-css-advanced::before {
    content: '@keyframes fade {\A   0% { opacity: 0 }\A   100% { opacity: 1 }\A } .grid { display: grid }';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(236, 72, 153, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Web Security for Devs Banner ===== */
.htc-module-banner.banner-web-security-for-devs {
    background:
        linear-gradient(135deg, rgba(220, 38, 38, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(245, 158, 11, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(245, 158, 11, 0.08) 40px, rgba(245, 158, 11, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-web-security-for-devs::before {
    content: 'XSS: <script>alert()\A CSRF: token check\A SQLi: parameterized\A CORS: Access-Control';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(245, 158, 11, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== CLI Power Tools Banner ===== */
.htc-module-banner.banner-cli-power-tools {
    background:
        linear-gradient(135deg, rgba(16, 185, 129, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(22, 163, 74, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(22, 163, 74, 0.08) 40px, rgba(22, 163, 74, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-cli-power-tools::before {
    content: '$ grep -r "TODO" .\A $ awk "{print $1}"\A $ sed "s/old/new/g"\A $ curl -s api | jq .';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(22, 163, 74, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Python Libraries Banner ===== */
.htc-module-banner.banner-python-libraries {
    background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(67, 56, 202, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(67, 56, 202, 0.08) 40px, rgba(67, 56, 202, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-python-libraries::before {
    content: 'import requests\A import pandas as pd\A from pathlib import Path\A from bs4 import BS';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(67, 56, 202, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* ===== Node.js Basics Banner ===== */
.htc-module-banner.banner-nodejs-basics {
    background:
        linear-gradient(135deg, rgba(34, 197, 94, 0.95) 0%, rgba(17, 29, 50, 0.9) 50%, rgba(132, 204, 22, 0.85) 100%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 40px, rgba(132, 204, 22, 0.08) 40px, rgba(132, 204, 22, 0.08) 42px);
    position: relative;
}
.htc-module-banner.banner-nodejs-basics::before {
    content: 'const express = require\A app.get("/", (req,res)\A   => res.json({ok:true})\A app.listen(3000)';
    white-space: pre;
    position: absolute; top: 12px; left: var(--space-4);
    font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: rgba(132, 204, 22, 0.35);
    line-height: 1.6; pointer-events: none; z-index: 1; text-align: left;
}

/* Programming Course Banner Shared After */
.htc-module-banner.banner-programming-basics::after,
.htc-module-banner.banner-python-fundamentals::after,
.htc-module-banner.banner-bash-basics::after,
.htc-module-banner.banner-html-css-basics::after,
.htc-module-banner.banner-javascript-basics::after,
.htc-module-banner.banner-git-version-control::after,
.htc-module-banner.banner-python-data-structures::after,
.htc-module-banner.banner-python-oop::after,
.htc-module-banner.banner-sql-for-developers::after,
.htc-module-banner.banner-api-basics::after,
.htc-module-banner.banner-regex-fundamentals::after,
.htc-module-banner.banner-linux-administration::after,
.htc-module-banner.banner-c-programming::after,
.htc-module-banner.banner-php-basics::after,
.htc-module-banner.banner-powershell-basics::after,
.htc-module-banner.banner-docker-basics::after,
.htc-module-banner.banner-networking-for-devs::after,
.htc-module-banner.banner-data-structures-algorithms::after,
.htc-module-banner.banner-python-automation::after,
.htc-module-banner.banner-json-xml-processing::after,
.htc-module-banner.banner-error-handling-debugging::after,
.htc-module-banner.banner-testing-basics::after,
.htc-module-banner.banner-python-networking::after,
.htc-module-banner.banner-css-advanced::after,
.htc-module-banner.banner-web-security-for-devs::after,
.htc-module-banner.banner-cli-power-tools::after,
.htc-module-banner.banner-python-libraries::after,
.htc-module-banner.banner-nodejs-basics::after {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(to top, var(--htc-bg-card) 0%, transparent 60%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.02) 20px,
            rgba(255, 255, 255, 0.02) 21px
        );
    pointer-events: none;
}

/* Inline answer form - input and button on same row */
.answer-form-inline {
    display: flex;
    gap: var(--space-3);
    align-items: stretch;
    margin-top: var(--space-3);
}

.answer-form-inline .answer-input-wrapper {
    flex: 1;
}

.answer-form-inline .answer-submit-wrapper {
    flex-shrink: 0;
}

.answer-form-inline input.answer {
    width: 100%;
    height: 100%;
}

.answer-form-inline .htc-btn {
    height: 100%;
    white-space: nowrap;
}

/* Responsive: stack on smaller screens */
@media (max-width: 576px) {
    .answer-form-inline {
        flex-direction: column;
    }
    
    .answer-form-inline .answer-submit-wrapper {
        width: 100%;
    }
    
    .answer-form-inline .htc-btn {
        width: 100%;
    }
}

/* Learning Path Modal */
.learning-path-modal {
    max-width: 500px;
}

.learning-path-desc {
    color: var(--htc-text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

.learning-path-track {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.learning-path-step {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--htc-bg-elevated);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.learning-path-step:hover {
    border-color: var(--htc-border-accent);
    background: var(--htc-bg-hover);
}

.learning-path-step.completed {
    border-color: var(--htc-success);
    background: rgba(16, 185, 129, 0.05);
}

.learning-path-step.in-progress {
    border-color: var(--htc-accent);
    background: rgba(79, 142, 247, 0.04);
}

.path-step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--htc-bg-tertiary);
    border: 2px solid var(--htc-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--htc-text-secondary);
    flex-shrink: 0;
}

.learning-path-step.completed .path-step-number {
    background: var(--htc-success);
    border-color: var(--htc-success);
    color: white;
}

.learning-path-step.in-progress .path-step-number {
    background: var(--htc-accent);
    border-color: var(--htc-accent);
    color: white;
}

.path-step-content {
    flex: 1;
    min-width: 0;
}

.path-step-title {
    font-weight: 600;
    color: var(--htc-text-primary);
    margin-bottom: var(--space-1);
}

.path-step-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.8rem;
}

.path-connector {
    width: 2px;
    height: 20px;
    background: var(--htc-border);
    margin-left: 17px;
}

.path-connector.completed {
    background: var(--htc-success);
}

.htc-badge-sm {
    padding: var(--space-1) var(--space-2);
    font-size: 0.7rem;
}

/* Responsive learning path */
@media (max-width: 768px) {
    .learning-path-step {
        flex-wrap: wrap;
    }
    
    .learning-path-step .htc-btn {
        width: 100%;
        margin-top: var(--space-3);
    }
}

.htc-module-body {
    padding: var(--space-5);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.htc-module-body .mb-4:last-child {
    margin-top: auto;
}

.htc-module-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.htc-module-desc {
    font-size: 0.875rem;
    color: var(--htc-text-secondary);
    margin-bottom: var(--space-4);
}

.htc-module-footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--htc-border);
    background: var(--htc-bg-secondary);
}

.htc-module-footer .d-flex {
    width: 100%;
}

.htc-module-footer .htc-btn {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   TABS
   ============================================ */
.htc-tabs {
    display: flex;
    gap: var(--space-1);
    border-bottom: 1px solid var(--htc-border);
    margin-bottom: var(--space-6);
}

.htc-tab {
    padding: var(--space-4) var(--space-6);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--htc-text-muted);
    cursor: pointer;
    border: none;
    background: none;
    position: relative;
    transition: all var(--transition-fast);
}

.htc-tab:hover {
    color: var(--htc-text-primary);
}

.htc-tab.active {
    color: var(--htc-accent);
}

.htc-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--htc-accent);
    border-radius: var(--radius-full) var(--radius-full) 0 0;
}

.htc-tab-panel {
    display: none;
}

.htc-tab-panel.active {
    display: block;
}

/* ============================================
   FOOTER
   ============================================ */
.htc-footer {
    padding: var(--space-8) 0;
    border-top: 1px solid var(--htc-border);
    background: var(--htc-bg-secondary);
    text-align: center;
}

.htc-footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.htc-footer-copyright {
    color: var(--htc-text-muted);
    font-size: 0.875rem;
}

.htc-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
}

.htc-footer-links a {
    color: var(--htc-text-muted);
    font-size: 1.25rem;
    transition: color var(--transition-fast);
}

.htc-footer-links a:hover {
    color: var(--htc-accent);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-grid { display: grid; }

/* Flexbox */
.flex-column { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

/* Gap */
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Margins */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.ml-auto { margin-left: auto; }
.ml-2 { margin-left: var(--space-2); }
.mr-2 { margin-right: var(--space-2); }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-4 { margin-top: var(--space-4); margin-bottom: var(--space-4); }

/* Paddings */
.p-0 { padding: 0; }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-10 { padding-top: var(--space-10); padding-bottom: var(--space-10); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }

/* Widths */
.w-full { width: 100%; }
.w-50 { width: 50%; }
.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-6xl { max-width: 72rem; }

/* Heights */
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

/* Border Radius */
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Text */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.uppercase { text-transform: uppercase; }
.tracking-wide { letter-spacing: 0.05em; }

/* Colors */
.text-primary { color: var(--htc-text-primary); }
.text-secondary { color: var(--htc-text-secondary); }
.text-muted { color: var(--htc-text-muted); }
.text-accent { color: var(--htc-accent); }
.text-success { color: var(--htc-success); }
.text-warning { color: var(--htc-warning); }
.text-error { color: var(--htc-error); }
.text-white { color: white; }

.bg-primary { background-color: var(--htc-bg-primary); }
.bg-secondary { background-color: var(--htc-bg-secondary); }
.bg-card { background-color: var(--htc-bg-card); }
.bg-elevated { background-color: var(--htc-bg-elevated); }

/* Borders */
.border { border: 1px solid var(--htc-border); }
.border-0 { border: none; }
.border-t { border-top: 1px solid var(--htc-border); }
.border-b { border-bottom: 1px solid var(--htc-border); }

/* Shadows */
.shadow-sm { box-shadow: var(--htc-shadow-sm); }
.shadow-md { box-shadow: var(--htc-shadow-md); }
.shadow-lg { box-shadow: var(--htc-shadow-lg); }
.shadow-glow { box-shadow: var(--htc-shadow-glow); }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; top: 0; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.left-0 { left: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }

/* Z-index */
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* Visibility */
.invisible { visibility: hidden; }
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* Transitions */
.transition { transition: all var(--transition-base); }
.transition-fast { transition: all var(--transition-fast); }

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseOpacity {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-fadeIn { animation: fadeInUp var(--transition-base) ease-out; }
.animate-pulse { animation: pulseOpacity 2s infinite; }

/* ============================================
   LANDING PAGE SPECIFIC
   ============================================ */
.htc-landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    display: flex;
    align-items: center;
    background: rgba(8, 10, 15, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--htc-border);
    z-index: var(--z-fixed);
    transition: background 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.htc-landing-nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

.htc-landing-nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.htc-landing-main {
    padding: 80px 2rem 2rem 2rem;
}

/* Stats Bar */
.htc-stats-bar {
    padding: var(--space-12) 0;
    background: var(--htc-bg-card);
    border-top: 1px solid var(--htc-border);
    border-bottom: 1px solid var(--htc-border);
}

.htc-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    text-align: center;
}

@media (max-width: 768px) {
    .htc-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.htc-stats-item-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--htc-accent);
    margin-bottom: var(--space-2);
}

.htc-stats-item-label {
    font-size: 0.875rem;
    color: var(--htc-text-muted);
}

/* CTA Section */
.htc-cta {
    text-align: center;
    padding: var(--space-20) var(--space-6);
    background: linear-gradient(135deg, var(--htc-bg-card), var(--htc-bg-elevated));
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-2xl);
    margin: var(--space-16) auto;
    max-width: 900px;
}

.htc-cta-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--space-4);
}

.htc-cta-text {
    font-size: 1.125rem;
    color: var(--htc-text-secondary);
    margin-bottom: var(--space-8);
}

/* ============================================
   AUTH PAGES (Login & Register)
   ============================================ */

.htc-auth-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--htc-bg-primary);
    position: relative;
    overflow: hidden;
}

.htc-auth-page::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 70% 50% at 15% 10%, rgba(79, 142, 247, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 60% 45% at 85% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.htc-auth-header {
    position: relative;
    z-index: 2;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.htc-auth-page .htc-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--htc-text-primary);
    transition: all 0.3s ease;
}

.htc-auth-page .htc-brand:hover {
    color: var(--htc-accent);
    transform: scale(1.05);
}

.htc-auth-page .htc-brand-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #4f8ef7, #8b5cf6);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.5rem;
    box-shadow: 0 4px 16px rgba(79, 142, 247, 0.35);
}

.htc-auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1rem;
    position: relative;
    z-index: 2;
}

.htc-auth-page .htc-auth-card {
    background: var(--htc-surface-1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.htc-auth-page .htc-form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.htc-auth-page .htc-form-group i {
    position: absolute;
    left: 1rem;
    top: 2.75rem;
    color: var(--htc-text-muted);
    font-size: 1.25rem;
}

.htc-auth-page .htc-form-group .htc-input {
    padding-left: 3rem;
    background: rgba(11, 18, 32, 0.6);
    border: 1px solid rgba(255,255,255,.1);
    transition: all 0.3s ease;
}

.htc-auth-page .htc-form-group .htc-input:focus {
    border-color: var(--htc-accent);
    background: rgba(11, 18, 32, 0.8);
    box-shadow: 0 0 0 3px rgba(59,130,246,.1);
}

/* ============================================
   ACADEMY PAGE - Fixed Layout
   ============================================ */

/* Academy-specific layout (scoped to body with .htc-academy-page class) */
body.htc-academy-page,
body.htc-programming-page,
body.htc-machines-page {
    overflow: hidden;
    height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
}

body.htc-academy-page .htc-main,
body.htc-programming-page .htc-main,
body.htc-machines-page .htc-main {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 0;
}

/* Academy fixed header */
.academy-sticky-header {
    background: transparent;
    padding: var(--space-6) var(--space-6) var(--space-4);
    border-bottom: 1px solid var(--htc-border);
    flex-shrink: 0;
}

.academy-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.academy-search-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex: 1;
    max-width: 600px;
}

.academy-filter-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-lg);
    color: var(--htc-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 600;
    white-space: nowrap;
}

.academy-filter-btn:hover {
    border-color: var(--htc-accent);
    color: var(--htc-text-primary);
}

.academy-filter-btn.has-filters {
    border-color: var(--htc-accent);
    color: var(--htc-accent);
}

/* Filter Modal */
.filter-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.filter-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.filter-modal {
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border-accent);
    border-radius: var(--radius-xl);
    padding: 0;
    max-width: 520px;
    width: 100%;
    max-height: 85vh;
    overflow: hidden;
    box-shadow: var(--htc-shadow-lg), 0 0 40px rgba(79, 142, 247, 0.10);
    animation: slideUp 0.25s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.filter-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    background: linear-gradient(135deg, rgba(79, 142, 247, 0.08) 0%, transparent 100%);
    border-bottom: 1px solid var(--htc-border);
}

.filter-modal-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--htc-text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.filter-modal-title i {
    color: var(--htc-accent);
}

.filter-modal-close {
    background: var(--htc-bg-elevated);
    border: 1px solid var(--htc-border);
    color: var(--htc-text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    line-height: 1;
    transition: all var(--transition-fast);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.filter-modal-close:hover {
    color: var(--htc-text-primary);
    background: var(--htc-bg-hover);
    border-color: var(--htc-border-light);
}

.filter-section {
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--htc-border);
}

.filter-section:last-of-type {
    border-bottom: none;
}

.filter-section-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--htc-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-chip {
    padding: 0.625rem 1.25rem;
    background: var(--htc-bg-elevated);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-full);
    color: var(--htc-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.filter-chip:hover {
    border-color: var(--htc-accent);
    color: var(--htc-text-primary);
    background: var(--htc-bg-hover);
    transform: translateY(-1px);
}

.filter-chip.active {
    background: linear-gradient(135deg, rgba(79, 142, 247, 0.16) 0%, rgba(79, 142, 247, 0.08) 100%);
    border-color: var(--htc-accent);
    color: var(--htc-accent);
    box-shadow: 0 0 12px rgba(79, 142, 247, 0.16);
}

.filter-chip.active::before {
    content: '';
    width: 14px;
    height: 14px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234f8ef7' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

.filter-modal-actions {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: var(--htc-bg-elevated);
    border-top: 1px solid var(--htc-border);
}

.filter-modal-actions .htc-btn {
    flex: 1;
    justify-content: center;
}

/* Active Filters Bar */
.active-filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: var(--space-3) 0;
    margin-top: var(--space-3);
}

.active-filter-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.375rem 0.75rem;
    background: rgba(79, 142, 247, 0.12);
    border: 1px solid rgba(79, 142, 247, 0.25);
    border-radius: var(--radius-full);
    color: var(--htc-accent);
    font-size: 0.8rem;
    font-weight: 600;
}

.active-filter-tag button {
    background: none;
    border: none;
    color: var(--htc-accent);
    cursor: pointer;
    padding: 0;
    font-size: 1rem;
    line-height: 1;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.active-filter-tag button:hover {
    opacity: 1;
}

/* Scrollable modules container - fixed height */
.modules-scroll-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-4) var(--space-6) var(--space-6);
    background: transparent;
}

/* Customize scrollbar */
.modules-scroll-container::-webkit-scrollbar {
    width: 8px;
}

.modules-scroll-container::-webkit-scrollbar-track {
    background: var(--htc-bg-elevated);
}

.modules-scroll-container::-webkit-scrollbar-thumb {
    background: var(--htc-border);
    border-radius: 4px;
}

.modules-scroll-container::-webkit-scrollbar-thumb:hover {
    background: var(--htc-text-muted);
}

/* Firefox scrollbar */
.modules-scroll-container {
    scrollbar-width: thin;
    scrollbar-color: var(--htc-border) var(--htc-bg-elevated);
}


/* ============================================
   SPAWN ENVIRONMENT SECTION
   ============================================ */
.htc-spawn-section {
    margin-top: var(--space-6);
    background: linear-gradient(135deg, var(--htc-bg-card) 0%, rgba(79, 142, 247, 0.06) 100%);
    border: 1px solid var(--htc-border-accent);
    position: relative;
    overflow: hidden;
}

.htc-spawn-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--htc-primary), var(--htc-neon), var(--htc-primary));
}

.htc-spawn-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    padding: var(--space-4);
}

.htc-spawn-info {
    display: flex;
    align-items: flex-start;
    gap: var(--space-6);
    flex: 1;
}

.htc-spawn-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--htc-primary) 0%, var(--htc-primary-dark) 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--htc-shadow-glow);
    flex-shrink: 0;
}

.htc-spawn-icon i {
    font-size: 2rem;
    color: white;
}

.htc-spawn-text {
    flex: 1;
}

.htc-spawn-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--htc-text-primary);
    margin-bottom: var(--space-2);
}

.htc-spawn-description {
    color: var(--htc-text-secondary);
    margin-bottom: var(--space-4);
    max-width: 600px;
}

.htc-spawn-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3) var(--space-6);
    list-style: none;
    padding: 0;
    margin: 0;
}

.htc-spawn-features li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    color: var(--htc-text-secondary);
}

.htc-spawn-features li i {
    color: var(--htc-success);
    font-size: 1rem;
}

.htc-spawn-actions {
    flex-shrink: 0;
}

.htc-btn-spawn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    background: linear-gradient(135deg, var(--htc-primary) 0%, var(--htc-neon) 100%);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
    box-shadow: 0 2px 12px rgba(79, 142, 247, 0.25);
}

.htc-btn-spawn:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(79, 142, 247, 0.35);
    filter: brightness(1.05);
}

.htc-btn-spawn i {
    font-size: 1.25rem;
}

/* Responsive adjustments for spawn section */
@media (max-width: 768px) {
    .htc-spawn-content {
        flex-direction: column;
        align-items: stretch;
    }
    
    .htc-spawn-info {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .htc-spawn-features {
        justify-content: center;
    }
    
    .htc-spawn-actions {
        text-align: center;
    }
    
    .htc-btn-spawn {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   SPAWN VM MODAL
   ============================================ */
.htc-spawn-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.htc-spawn-modal-overlay.active {
    display: flex;
}

.htc-spawn-modal {
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border-accent);
    border-radius: var(--radius-xl);
    max-width: 520px;
    width: 100%;
    box-shadow: var(--htc-shadow-lg), var(--htc-shadow-glow);
    overflow: hidden;
}

.htc-spawn-modal-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6);
    background: linear-gradient(135deg, rgba(79, 142, 247, 0.10) 0%, transparent 100%);
    border-bottom: 1px solid var(--htc-border);
    position: relative;
}

.htc-spawn-modal-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--htc-primary) 0%, var(--htc-primary-dark) 100%);
    border-radius: var(--radius-md);
    box-shadow: var(--htc-shadow-glow);
    flex-shrink: 0;
}

.htc-spawn-modal-icon i {
    font-size: 1.5rem;
    color: white;
}

.htc-spawn-modal-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--htc-text-primary);
    margin: 0;
    flex: 1;
}

.htc-spawn-modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: none;
    border: none;
    color: var(--htc-text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-1);
    line-height: 1;
    transition: color var(--transition-fast);
}

.htc-spawn-modal-close:hover {
    color: var(--htc-text-primary);
}

.htc-spawn-modal-body {
    padding: var(--space-6);
}

.htc-spawn-modal-desc {
    color: var(--htc-text-secondary);
    margin-bottom: var(--space-5);
    line-height: 1.6;
}

.htc-spawn-modal-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    list-style: none;
    padding: 0;
    margin: 0;
}

.htc-spawn-modal-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.9rem;
    color: var(--htc-text-secondary);
    padding: var(--space-2) var(--space-3);
    background: var(--htc-bg-elevated);
    border-radius: var(--radius-md);
    border: 1px solid var(--htc-border);
}

.htc-spawn-modal-features li i {
    color: var(--htc-success);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.htc-spawn-modal-footer {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: var(--htc-bg-elevated);
    border-top: 1px solid var(--htc-border);
}

.htc-spawn-modal-footer .htc-btn {
    flex: 1;
    justify-content: center;
}

/* Responsive adjustments for spawn modal */
@media (max-width: 480px) {
    .htc-spawn-modal {
        margin: var(--space-3);
    }
    
    .htc-spawn-modal-header {
        padding: var(--space-4);
    }
    
    .htc-spawn-modal-body {
        padding: var(--space-4);
    }
    
    .htc-spawn-modal-footer {
        flex-direction: column;
        padding: var(--space-4);
    }
}

/* ============================================
   404 ERROR PAGE
   ============================================ */
.htc-error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    overflow: hidden;
    position: relative;
}

.htc-error-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 600px;
}

.htc-error-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.htc-error-glitch {
    font-size: clamp(6rem, 20vw, 12rem);
    font-weight: 900;
    color: var(--htc-accent);
    text-shadow: 
        0 0 20px var(--htc-primary-glow),
        0 0 40px var(--htc-primary-glow),
        0 0 60px var(--htc-primary-glow);
    line-height: 1;
    margin-bottom: var(--space-4);
    position: relative;
    animation: glitch 2.5s infinite;
}

.htc-error-glitch::before,
.htc-error-glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.htc-error-glitch::before {
    animation: glitch-1 2.5s infinite;
    color: var(--htc-error);
    z-index: -1;
}

.htc-error-glitch::after {
    animation: glitch-2 2.5s infinite;
    color: var(--htc-neon);
    z-index: -2;
}

@keyframes glitch {
    0%, 90%, 100% { transform: translate(0); }
    92% { transform: translate(-2px, 2px); }
    94% { transform: translate(2px, -2px); }
    96% { transform: translate(-2px, -2px); }
    98% { transform: translate(2px, 2px); }
}

@keyframes glitch-1 {
    0%, 90%, 100% { clip-path: inset(0 0 0 0); transform: translate(0); }
    92% { clip-path: inset(20% 0 60% 0); transform: translate(-4px, 0); }
    94% { clip-path: inset(60% 0 20% 0); transform: translate(4px, 0); }
    96% { clip-path: inset(40% 0 40% 0); transform: translate(-2px, 0); }
    98% { clip-path: inset(10% 0 80% 0); transform: translate(2px, 0); }
}

@keyframes glitch-2 {
    0%, 90%, 100% { clip-path: inset(0 0 0 0); transform: translate(0); }
    91% { clip-path: inset(80% 0 10% 0); transform: translate(3px, 0); }
    93% { clip-path: inset(10% 0 70% 0); transform: translate(-3px, 0); }
    95% { clip-path: inset(50% 0 30% 0); transform: translate(2px, 0); }
    97% { clip-path: inset(30% 0 50% 0); transform: translate(-2px, 0); }
}

.htc-error-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--htc-text-primary);
    margin-bottom: var(--space-3);
}

.htc-error-message {
    color: var(--htc-text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--space-6);
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.htc-error-terminal {
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-6);
    text-align: left;
    box-shadow: var(--htc-shadow-lg);
}

.htc-error-terminal-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--htc-bg-elevated);
    border-bottom: 1px solid var(--htc-border);
}

.htc-terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.htc-terminal-dot-red { background: var(--htc-error); }
.htc-terminal-dot-yellow { background: var(--htc-warning); }
.htc-terminal-dot-green { background: var(--htc-success); }

.htc-terminal-title {
    color: var(--htc-text-muted);
    font-size: 0.8rem;
    margin-left: auto;
}

.htc-error-terminal-body {
    padding: var(--space-4);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
}

.htc-error-terminal-body p {
    margin: 0;
}

.htc-terminal-prompt {
    color: var(--htc-success);
    margin-right: var(--space-2);
}

.htc-terminal-response {
    color: var(--htc-text-muted);
    padding-left: var(--space-4);
}

.htc-terminal-error {
    color: var(--htc-error);
    font-weight: 600;
}

.htc-terminal-cursor {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.htc-error-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

.htc-error-bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(79, 142, 247, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 142, 247, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

@media (max-width: 480px) {
    .htc-error-actions {
        flex-direction: column;
    }
    
    .htc-error-actions .htc-btn {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   LOADING STATES - Enhanced UX
   ============================================ */

/* Loading Overlay */
.htc-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(3, 7, 18, 0.9);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.htc-loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.htc-loading-content {
    text-align: center;
}

.htc-loading-text {
    color: var(--htc-text-secondary);
    font-size: 0.95rem;
    margin-top: var(--space-4);
}

/* Enhanced Spinner */
.htc-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--htc-bg-elevated);
    border-top-color: var(--htc-accent);
    border-radius: 50%;
    animation: htc-spin 0.8s linear infinite;
}

.htc-spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.htc-spinner-lg {
    width: 60px;
    height: 60px;
    border-width: 4px;
}

@keyframes htc-spin {
    to { transform: rotate(360deg); }
}

/* Pulse Loader */
.htc-pulse-loader {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    justify-content: center;
}

.htc-pulse-loader span {
    width: 10px;
    height: 10px;
    background: var(--htc-accent);
    border-radius: 50%;
    animation: htc-pulse 1.4s ease-in-out infinite both;
}

.htc-pulse-loader span:nth-child(1) { animation-delay: -0.32s; }
.htc-pulse-loader span:nth-child(2) { animation-delay: -0.16s; }
.htc-pulse-loader span:nth-child(3) { animation-delay: 0s; }

@keyframes htc-pulse {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Skeleton Loaders */
.htc-skeleton {
    background: linear-gradient(
        90deg,
        var(--htc-bg-elevated) 25%,
        var(--htc-bg-hover) 50%,
        var(--htc-bg-elevated) 75%
    );
    background-size: 200% 100%;
    animation: htc-skeleton-shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

.htc-skeleton-text {
    height: 1rem;
    margin-bottom: var(--space-2);
}

.htc-skeleton-text:last-child {
    width: 70%;
}

.htc-skeleton-title {
    height: 1.5rem;
    width: 60%;
    margin-bottom: var(--space-3);
}

.htc-skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.htc-skeleton-card {
    height: 200px;
    border-radius: var(--radius-lg);
}

.htc-skeleton-btn {
    height: 40px;
    width: 120px;
    border-radius: var(--radius-md);
}

@keyframes htc-skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Loading Button State */
.htc-btn.htc-btn-loading {
    pointer-events: none;
    position: relative;
    color: transparent !important;
}

.htc-btn.htc-btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--htc-text-primary);
    border-radius: 50%;
    animation: htc-spin 0.8s linear infinite;
}

.htc-btn-secondary.htc-btn-loading::after {
    border-color: var(--htc-bg-elevated);
    border-top-color: var(--htc-accent);
}

/* Content Loading State */
.htc-content-loading {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
}

.htc-content-loading .htc-spinner {
    margin-bottom: var(--space-4);
}

/* Page Transition Loading */
.htc-page-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--htc-bg-elevated);
    z-index: var(--z-tooltip);
    overflow: hidden;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.htc-page-loading.active {
    opacity: 1;
}

.htc-page-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background: linear-gradient(90deg, var(--htc-accent), var(--htc-neon));
    animation: htc-page-load 1.5s ease-in-out infinite;
}

@keyframes htc-page-load {
    0% { left: -30%; }
    100% { left: 100%; }
}

/* Inline Loading Indicator */
.htc-inline-loading {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--htc-text-secondary);
    font-size: 0.9rem;
}

.htc-inline-loading .htc-spinner-sm {
    flex-shrink: 0;
}

/* ============ Rankings Page ============ */
/* Rankings Page Styles */
.rankings-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.rankings-search {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.rankings-search input {
    min-width: 280px;
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
    padding: 0.5rem;
    background: var(--htc-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--htc-border);
}

.category-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--htc-text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.category-tab:hover {
    background: var(--htc-bg-hover);
    color: var(--htc-text-primary);
}

.category-tab.active {
    background: var(--htc-primary);
    color: #fff;
}

.my-rank-card {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(6, 182, 212, 0.1));
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.my-rank-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.my-rank-badge {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: var(--htc-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
}

.my-rank-text h3 {
    margin: 0 0 0.25rem 0;
    font-size: 1.25rem;
}

.my-rank-text p {
    margin: 0;
    color: var(--htc-text-secondary);
    font-size: 0.875rem;
}

.rankings-table-container {
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.rankings-table {
    width: 100%;
    border-collapse: collapse;
}

.rankings-table th,
.rankings-table td {
    padding: 1rem 1.25rem;
    text-align: left;
}

.rankings-table th {
    background: var(--htc-bg-elevated);
    color: var(--htc-text-muted);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--htc-border);
}

.rankings-table tbody tr {
    border-bottom: 1px solid var(--htc-border);
    transition: background var(--transition-fast);
}

.rankings-table tbody tr:last-child {
    border-bottom: none;
}

.rankings-table tbody tr:hover {
    background: var(--htc-bg-hover);
}

.rankings-table tbody tr.is-me {
    background: rgba(59, 130, 246, 0.1);
}

.rank-cell {
    font-weight: 800;
    font-size: 1.125rem;
    min-width: 60px;
}

.rank-gold { color: #fbbf24; }
.rank-silver { color: var(--htc-text-secondary); }
.rank-bronze { color: #cd7f32; }

.user-cell {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--htc-bg-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-avatar i {
    font-size: 1.25rem;
    color: var(--htc-text-muted);
}

.user-name {
    font-weight: 600;
    color: var(--htc-text-primary);
}

.user-rank-title {
    font-size: 0.75rem;
    color: var(--htc-text-muted);
    font-weight: 500;
}

.user-name a {
    color: inherit;
    text-decoration: none;
}

.user-name a:hover {
    color: var(--htc-accent);
}

.stat-cell {
    font-weight: 600;
    color: var(--htc-text-secondary);
}

.stat-cell.primary {
    color: var(--htc-accent);
    font-size: 1.125rem;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    border-top: 1px solid var(--htc-border);
}

.pagination a,
.pagination span {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.pagination a {
    background: var(--htc-bg-elevated);
    color: var(--htc-text-secondary);
    border: 1px solid var(--htc-border);
}

.pagination a:hover {
    background: var(--htc-bg-hover);
    color: var(--htc-text-primary);
    border-color: var(--htc-accent);
}

.pagination span.current {
    background: var(--htc-primary);
    color: #fff;
}

.pagination span.dots {
    color: var(--htc-text-muted);
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--htc-text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

@media (max-width: 768px) {
    .category-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }
    
    .rankings-table th:nth-child(n+4),
    .rankings-table td:nth-child(n+4) {
        display: none;
    }
    
    .my-rank-card {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ============ Market Page ============ */
.market-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 2rem;
      flex-wrap: wrap;
      gap: 1rem;
    }
    .cores-display {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      background: var(--htc-bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      padding: 0.75rem 1.5rem;
      border-radius: 12px;
    }
    .cores-icon {
      font-size: 1.5rem;
      color: #fbbf24;
    }
    .cores-amount {
      font-size: 1.5rem;
      font-weight: 700;
      color: #fff;
    }
    .market-filters {
      display: flex;
      gap: 0.5rem;
      margin-bottom: 1.5rem;
      flex-wrap: wrap;
    }
    .filter-btn {
      padding: 0.5rem 1rem;
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: var(--htc-bg-secondary);
      color: var(--htc-text-secondary);
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.2s;
      font-size: 0.875rem;
    }
    .filter-btn:hover {
      background: var(--htc-bg-card);
      color: #fff;
      border-color: rgba(255, 255, 255, 0.2);
    }
    .filter-btn.active {
      background: var(--htc-primary);
      color: #fff;
      border-color: var(--htc-primary);
    }
    .market-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 1.5rem;
    }
    .market-item {
      background: var(--htc-bg-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 1.5rem;
      transition: all 0.3s;
      position: relative;
      overflow: hidden;
    }
    .market-item:hover {
      border-color: rgba(255, 255, 255, 0.15);
      transform: translateY(-2px);
    }
    .item-header {
      display: flex;
      align-items: flex-start;
      gap: 1rem;
      margin-bottom: 1rem;
    }
    .item-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      flex-shrink: 0;
    }
    .item-info {
      flex: 1;
    }
    .item-name {
      font-size: 1.125rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 0.25rem;
    }
    .item-category {
      font-size: 0.75rem;
      color: var(--htc-text-secondary);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .item-description {
      color: var(--htc-text-secondary);
      font-size: 0.875rem;
      margin-bottom: 1rem;
      line-height: 1.5;
    }
    .item-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
    }
    .item-price {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 1.125rem;
      font-weight: 700;
      color: #fbbf24;
    }
    .buy-btn {
      padding: 0.5rem 1.25rem;
      background: var(--htc-primary);
      color: #fff;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      font-weight: 600;
      transition: all 0.2s;
      font-size: 0.875rem;
    }
    .buy-btn:hover {
      background: var(--htc-primary-dark);
      transform: scale(1.05);
    }
    .buy-btn:disabled {
      background: var(--htc-bg-secondary);
      color: var(--htc-text-secondary);
      cursor: not-allowed;
      transform: scale(1);
    }
    .rarity-badge {
      position: absolute;
      top: 1rem;
      right: 1rem;
      padding: 0.25rem 0.75rem;
      border-radius: 6px;
      font-size: 0.75rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .rarity-legendary {
      background: rgba(251, 191, 36, 0.2);
      color: #fbbf24;
      border: 1px solid rgba(251, 191, 36, 0.3);
    }
    .rarity-epic {
      background: rgba(139, 92, 246, 0.2);
      color: #a78bfa;
      border: 1px solid rgba(139, 92, 246, 0.3);
    }
    .rarity-rare {
      background: rgba(59, 130, 246, 0.2);
      color: #60a5fa;
      border: 1px solid rgba(59, 130, 246, 0.3);
    }
    .rarity-common {
      background: rgba(107, 114, 128, 0.2);
      color: #9ca3af;
      border: 1px solid rgba(107, 114, 128, 0.3);
    }
    .owned-badge {
      position: absolute;
      top: 1rem;
      left: 1rem;
      padding: 0.25rem 0.75rem;
      border-radius: 6px;
      font-size: 0.75rem;
      font-weight: 600;
      background: rgba(16, 185, 129, 0.2);
      color: var(--htc-success);
      border: 1px solid rgba(16, 185, 129, 0.3);
    }

/* ============ Statistics Page ============ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.stat-card {
    background: var(--htc-bg-card);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}
.stat-card:hover {
    border-color: var(--htc-accent);
    transform: translateY(-2px);
}
.stat-icon {
    font-size: 2.5rem;
    color: var(--htc-accent);
    margin-bottom: 1rem;
}
.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    margin-bottom: .5rem;
}
.stat-label {
    color: #9ca3af;
    font-size: .9rem;
}
.chart-card {
    background: var(--htc-bg-card);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}
.chart-title {
    color: var(--htc-accent);
    font-weight: 800;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}
.module-time-list {
    max-height: 400px;
    overflow-y: auto;
}
.module-time-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid rgba(255,255,255,.05);
}
.module-time-item:last-child {
    border-bottom: none;
}
.module-name {
    font-weight: 600;
    color: var(--htc-text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.module-time {
    color: var(--htc-accent);
    font-weight: 700;
}

/* ============ Friends Page ============ */
.friends-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.friends-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    padding: 0.5rem;
    background: var(--htc-bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--htc-border);
}

.friends-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--htc-text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.friends-tab:hover {
    background: var(--htc-bg-hover);
    color: var(--htc-text-primary);
}

.friends-tab.active {
    background: var(--htc-primary);
    color: #fff;
}

.friends-tab .badge {
    background: rgba(255,255,255,0.2);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
}

.friends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.friend-card {
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition-fast);
}

.friend-card:hover {
    border-color: var(--htc-accent);
    transform: translateY(-2px);
}

.friend-avatar {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: var(--htc-bg-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.friend-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.friend-avatar i {
    font-size: 1.5rem;
    color: var(--htc-text-muted);
}

.friend-info {
    flex: 1;
    min-width: 0;
}

.friend-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--htc-text-primary);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.friend-name a {
    color: inherit;
    text-decoration: none;
}

.friend-name a:hover {
    color: var(--htc-accent);
}

.friend-meta {
    display: flex;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: var(--htc-text-muted);
}

.friend-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.search-form {
    display: flex;
    gap: 0.75rem;
    max-width: 500px;
    margin-bottom: 2rem;
}

.search-form input {
    flex: 1;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--htc-text-muted);
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border);
    border-radius: var(--radius-lg);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.status-friends {
    background: rgba(16, 185, 129, 0.2);
    color: var(--htc-success);
}

.status-pending {
    background: rgba(245, 158, 11, 0.2);
    color: var(--htc-warning);
}

/* ============ Daily Challenge Page ============ */
.challenge-hero {
    background: linear-gradient(135deg, rgba(59,130,246,.2), rgba(37,99,235,.08));
    border: 2px solid var(--htc-accent);
    border-radius: 16px;
    padding: 3rem;
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}
.challenge-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59,130,246,.18) 0%, transparent 70%);
    animation: pulseScale 3s ease-in-out infinite;
}
@keyframes pulseScale {
    0%, 100% { transform: scale(1); opacity: .5; }
    50% { transform: scale(1.1); opacity: .8; }
}
.challenge-icon {
    font-size: 4rem;
    color: var(--htc-accent);
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}
.challenge-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--htc-accent);
    margin-bottom: .5rem;
    position: relative;
    z-index: 1;
}
.challenge-desc {
    color: #d1d5db;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}
.xp-badge {
    display: inline-block;
    padding: .6rem 1.5rem;
    background: var(--htc-accent);
    color: #0b1220;
    border-radius: 8px;
    font-weight: 800;
    font-size: 1.2rem;
    position: relative;
    z-index: 1;
}
.streak-section {
    background: var(--htc-bg-card);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}
.streak-display {
    text-align: center;
    padding: 2rem;
}
.streak-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--htc-accent);
    line-height: 1;
    margin-bottom: .5rem;
}
.streak-flame {
    font-size: 5rem;
    margin-bottom: 1rem;
}
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: .5rem;
    margin-top: 1.5rem;
}
.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,.2);
    border-radius: 8px;
    font-size: .85rem;
    border: 1px solid transparent;
}
.calendar-day.active {
    background: rgba(59,130,246,.22);
    border-color: var(--htc-accent);
    color: var(--htc-accent);
    font-weight: 700;
}
.claim-btn {
    background: var(--htc-accent);
    color: #0b1220;
    border: 0;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 800;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}
.claim-btn:hover:not(:disabled) {
    background: var(--htc-primary-dark);
    transform: scale(1.05);
}
.claim-btn:disabled {
    background: var(--htc-text-dim);
    cursor: not-allowed;
    opacity: .6;
}

/* ============ Learning Paths Page ============ */
.path-card {
    background: var(--htc-bg-card);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}
.path-card:hover {
    border-color: var(--htc-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(59,130,246,.2);
}
.path-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}
.path-title {
    color: var(--htc-accent);
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0;
}
.path-difficulty {
    padding: .4rem .8rem;
    border-radius: 6px;
    font-size: .85rem;
    font-weight: 700;
}
.diff-beginner { background: rgba(34,197,94,.2); color: #22c55e; }
.diff-intermediate { background: rgba(251,191,36,.2); color: #fbbf24; }
.diff-advanced { background: rgba(239,68,68,.2); color: var(--htc-error); }
.path-modules {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: 1rem;
}
.module-chip {
    padding: .4rem .8rem;
    background: rgba(59,130,246,.12);
    border: 1px solid rgba(59,130,246,.35);
    border-radius: 6px;
    font-size: .85rem;
    color: #fff;
}
.progress-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,.08);
}
.progress-bar-container {
    background: rgba(0,0,0,.3);
    border-radius: 8px;
    height: 10px;
    overflow: hidden;
    margin-bottom: .5rem;
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--htc-accent), #2563eb);
    border-radius: 8px;
    transition: width 0.6s ease;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}
.stat-box {
    text-align: center;
    padding: 1rem;
    background: rgba(0,0,0,.2);
    border-radius: 8px;
}
.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--htc-accent);
}
.stat-label {
    font-size: .85rem;
    color: #9ca3af;
    margin-top: .25rem;
}
.start-btn {
    background: var(--htc-accent);
    color: #0b1220;
    border: 0;
    padding: .6rem 1.5rem;
    border-radius: 8px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.3s ease;
}
.start-btn:hover {
    background: var(--htc-primary-dark);
    transform: scale(1.05);
}

/* ============ Quick Challenge Page ============ */
.quick-challenge-container { max-width: 900px; }
.quick-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.quick-challenge-card {
  background: var(--htc-bg-card);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
}
.quick-challenge-input {
  width: 100%;
  padding: var(--space-4);
  background: var(--htc-bg-elevated);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-lg);
  color: var(--htc-text-primary);
  font-size: 0.9375rem;
  margin-top: var(--space-2);
}
.quick-challenge-input:focus {
  outline: none;
  border-color: var(--htc-accent);
  box-shadow: 0 0 0 3px var(--htc-primary-glow);
}
.quick-challenge-input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ============ Unlockables Page ============ */
.htc-card-success { border-color: var(--htc-accent); }
.htc-card-error { border-color: var(--htc-error); }
.unlockables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}
.unlockable-card {
    background: var(--htc-bg-card);
    border: 2px solid rgba(255,255,255,.08);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
}
.unlockable-card:hover {
    transform: translateY(-5px);
    border-color: var(--htc-accent);
}
.unlockable-card.locked {
    opacity: .5;
    cursor: not-allowed;
}
.unlockable-card.locked:hover {
    transform: none;
    border-color: rgba(255,255,255,.08);
}
.unlockable-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    filter: grayscale(0);
}
.unlockable-card.locked .unlockable-icon {
    filter: grayscale(1);
}
.unlockable-name {
    font-weight: 800;
    color: #fff;
    margin-bottom: .5rem;
}
.unlockable-condition {
    font-size: .85rem;
    color: #9ca3af;
}
.lock-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    color: #6b7280;
}
.select-btn {
    margin-top: 1rem;
    width: 100%;
    background: var(--htc-accent);
    color: #0b1220;
    border: 0;
    padding: .5rem;
    border-radius: 6px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}
.select-btn:hover {
    background: var(--htc-primary-dark);
}
.section-title {
    color: var(--htc-accent);
    font-weight: 800;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.theme-preview {
    width: 100%;
    height: 80px;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
}
.theme-matrix {
    background: linear-gradient(135deg, #001100, #003300);
    color: #00ff00;
}
.theme-cyberpunk {
    background: linear-gradient(135deg, #ff006e, #8338ec);
    color: #fff;
}

/* ============ Lootbox Page ============ */
.lootbox-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.cores-display {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--htc-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
}

.cores-icon {
    font-size: 1.5rem;
    color: #fbbf24;
}

.cores-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

.lootbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.lootbox-card {
    background: var(--htc-bg-card);
    border: 2px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.lootbox-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.lootbox-card.common { border-color: rgba(107, 114, 128, 0.5); }
.lootbox-card.common:hover { border-color: #6b7280; box-shadow: 0 8px 32px rgba(107, 114, 128, 0.2); }
.lootbox-card.rare { border-color: rgba(59, 130, 246, 0.5); }
.lootbox-card.rare:hover { border-color: #3b82f6; box-shadow: 0 8px 32px rgba(59, 130, 246, 0.2); }
.lootbox-card.epic { border-color: rgba(139, 92, 246, 0.5); }
.lootbox-card.epic:hover { border-color: #8b5cf6; box-shadow: 0 8px 32px rgba(139, 92, 246, 0.2); }
.lootbox-card.legendary { border-color: rgba(251, 191, 36, 0.5); }
.lootbox-card.legendary:hover { border-color: #fbbf24; box-shadow: 0 8px 32px rgba(251, 191, 36, 0.2); }

.lootbox-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.lootbox-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.lootbox-desc {
    color: var(--htc-text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.lootbox-price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fbbf24;
    margin-bottom: 1rem;
}

.lootbox-chances {
    font-size: 0.75rem;
    color: var(--htc-text-muted);
    margin-bottom: 1rem;
}

.lootbox-btn {
    width: 100%;
    padding: 0.75rem;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.lootbox-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Result Modal */
.result-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: var(--z-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.result-modal {
    text-align: center;
    padding: 3rem;
    max-width: 400px;
}

.result-item-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 3rem;
    animation: bounceIn 0.5s ease;
}

@keyframes bounceIn {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.result-rarity {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.result-name {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.result-type {
    color: var(--htc-text-secondary);
    margin-bottom: 1.5rem;
}

.result-duplicate {
    background: rgba(251, 191, 36, 0.2);
    border: 1px solid rgba(251, 191, 36, 0.4);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

/* Items Preview */
.items-preview {
    margin-top: 3rem;
}

.items-section {
    margin-bottom: 2rem;
}

.items-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.item-preview-card {
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.item-preview-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.item-preview-info {
    flex: 1;
}

.item-preview-name {
    font-weight: 600;
    font-size: 0.875rem;
}

.item-preview-type {
    font-size: 0.75rem;
    color: var(--htc-text-muted);
}

.rarity-common { color: #6b7280; }
.rarity-rare { color: #3b82f6; }
.rarity-epic { color: #8b5cf6; }
.rarity-legendary { color: #fbbf24; }

/* ============ Search Page ============ */
.search-header {
    background: var(--htc-bg-card);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(255,255,255,.08);
}
.search-box {
    display: flex;
    gap: 1rem;
}
.search-input {
    flex: 1;
    background: rgba(0,0,0,.3);
    border: 2px solid rgba(255,255,255,.1);
    color: #fff;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}
.search-input:focus {
    outline: none;
    border-color: var(--htc-accent);
    box-shadow: 0 0 0 3px rgba(59,130,246,.2);
}
.search-btn {
    background: var(--htc-accent);
    color: #0b1220;
    border: 0;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.3s ease;
}
.search-btn:hover {
    background: var(--htc-primary-dark);
    transform: scale(1.05);
}
.result-card {
    background: var(--htc-bg-card);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}
.result-card:hover {
    border-color: var(--htc-accent);
    transform: translateX(5px);
}
.result-title {
    color: var(--htc-accent);
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: .5rem;
    text-decoration: none;
    display: block;
}
.result-title:hover {
    color: #93c5fd;
}
.result-meta {
    color: #9ca3af;
    font-size: .9rem;
    margin-bottom: .5rem;
}
.result-type-badge {
    display: inline-block;
    padding: .3rem .6rem;
    background: rgba(59,130,246,.18);
    color: var(--htc-accent);
    border-radius: 4px;
    font-size: .8rem;
    font-weight: 700;
    margin-right: .5rem;
}
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: #9ca3af;
}
.no-results-icon {
    font-size: 5rem;
    margin-bottom: 1rem;
    opacity: .5;
}

/* ============ News Page Timeline ============ */
.news-timeline {
    overflow: hidden;
}

/* ============ Certificates Page ============ */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 2rem;
}

.certificate-card {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border: 2px solid rgba(251, 191, 36, 0.3);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #fbbf24, #f59e0b, #fbbf24);
}

.certificate-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(251, 191, 36, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.certificate-header {
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.certificate-logo {
    font-size: 3rem;
    color: #fbbf24;
    margin-bottom: 0.5rem;
}

.certificate-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--htc-text-secondary);
    margin-bottom: 0.5rem;
}

.certificate-path-name {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 1rem;
}

.certificate-awarded-to {
    color: var(--htc-text-secondary);
    font-size: 0.875rem;
}

.certificate-user-name {
    color: #fbbf24;
    font-weight: 700;
    font-size: 1.125rem;
}

.certificate-body {
    text-align: center;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.certificate-date {
    color: #64748b;
    font-size: 0.875rem;
}

.certificate-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 1;
}

.certificate-verification {
    font-size: 0.75rem;
    color: #64748b;
}

.certificate-code {
    font-family: monospace;
    font-size: 0.875rem;
    color: var(--htc-text-secondary);
    background: rgba(0, 0, 0, 0.3);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.certificate-actions {
    display: flex;
    gap: 0.5rem;
}

.certificate-action-btn {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.certificate-action-btn.primary {
    background: #fbbf24;
    color: #0f172a;
}

.certificate-action-btn.primary:hover {
    background: #f59e0b;
}

.certificate-action-btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.certificate-action-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.no-certificates {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--htc-bg-card);
    border-radius: 16px;
    border: 1px solid var(--htc-border);
}

.no-certificates-icon {
    font-size: 4rem;
    color: var(--htc-text-muted);
    margin-bottom: 1rem;
}

.paths-progress {
    margin-top: 3rem;
}

.path-progress-card {
    background: var(--htc-bg-card);
    border: 1px solid var(--htc-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.path-info {
    flex: 1;
}

.path-name {
    font-weight: 700;
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.path-progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.path-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--htc-primary), #2563eb);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.path-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ============ Machines Page ============ */
/* Machines Page Styles */
.machines-sticky-header {
  background: transparent;
  padding: var(--space-6) var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--htc-border);
  flex-shrink: 0;
}
.machines-scroll-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-4) var(--space-6) var(--space-6);
  background: transparent;
}
.machines-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.machines-search-row {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex: 1;
  max-width: 500px;
}
@media (max-width: 600px) {
  .machines-sticky-header {
    padding: var(--space-4) var(--space-3) var(--space-3);
  }
  .machines-scroll-container {
    padding: var(--space-3);
  }
  .machines-header-row {
    gap: var(--space-3);
  }
  .machines-search-row {
    max-width: 100%;
  }
}
.machines-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--htc-bg-elevated);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-lg);
  color: var(--htc-text-secondary);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.machines-filter-btn:hover {
  border-color: var(--htc-accent);
  color: var(--htc-text-primary);
}
.machines-filter-btn.has-filters {
  border-color: var(--htc-accent);
  background: rgba(59, 130, 246, 0.1);
  color: var(--htc-accent);
}

/* Active Filters Bar */
.active-filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}
.active-filter-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--htc-accent);
}
.active-filter-tag button {
  background: none;
  border: none;
  color: var(--htc-accent);
  cursor: pointer;
  padding: 0;
  font-size: 1rem;
  line-height: 1;
}

/* Filter Modal */
.filter-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}
.filter-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.filter-modal {
  background: var(--htc-bg-card);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform var(--transition-base);
}
.filter-modal-overlay.active .filter-modal {
  transform: translateY(0);
}
.filter-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--htc-border);
}
.filter-modal-title {
  font-weight: 700;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.filter-modal-close {
  background: none;
  border: none;
  color: var(--htc-text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-1);
}
.filter-modal-close:hover {
  color: var(--htc-text-primary);
}
.filter-section {
  padding: var(--space-5);
  border-bottom: 1px solid var(--htc-border);
}
.filter-section:last-of-type {
  border-bottom: none;
}
.filter-section-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--htc-text-muted);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.filter-chip {
  padding: var(--space-2) var(--space-4);
  background: var(--htc-bg-elevated);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--htc-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.filter-chip:hover {
  border-color: var(--htc-accent);
  color: var(--htc-text-primary);
}
.filter-chip.active {
  background: rgba(59, 130, 246, 0.15);
  border-color: var(--htc-accent);
  color: var(--htc-accent);
}
.filter-modal-actions {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-5);
  border-top: 1px solid var(--htc-border);
}

/* Machine Rows */
.machine-row {
  display: grid;
  grid-template-columns: 1fr 120px 110px 100px 120px;
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--htc-bg-card);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-lg);
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  color: inherit;
}
.machine-row:hover {
  border-color: var(--htc-accent);
  transform: translateX(4px);
}
.machine-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
  min-width: 0;
}
.machine-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--htc-bg-elevated);
  object-fit: cover;
  flex-shrink: 0;
}
.machine-title {
  font-weight: 700;
  margin-bottom: 0.25rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.machine-meta {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.machine-stat {
  font-weight: 600;
  color: var(--htc-text-secondary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  justify-content: center;
}
.machine-header-row-labels {
  display: grid;
  grid-template-columns: 1fr 120px 110px 100px 120px;
  gap: 1rem;
  padding: 0 1.5rem;
  margin-bottom: var(--space-3);
  color: var(--htc-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.machine-header-row-labels > div {
  text-align: center;
}
.machine-header-row-labels > div:first-child {
  text-align: left;
}
@media (max-width: 900px) {
  .machine-row, .machine-header-row-labels {
    grid-template-columns: 1fr auto auto;
    gap: 0.75rem;
  }
  /* Hide Rating and Players columns on tablets */
  .machine-header-row-labels > div:nth-child(3),
  .machine-header-row-labels > div:nth-child(4) {
    display: none;
  }
  .machine-row > .machine-stat {
    display: none;
  }
}
@media (max-width: 600px) {
  .machine-row {
    grid-template-columns: 1fr auto;
    gap: 0.5rem;
    padding: 1rem;
  }
  .machine-header-row-labels {
    display: none;
  }
  .machine-row > .machine-stat {
    display: none;
  }
  .machine-row .machine-actions {
    justify-content: flex-end;
    align-items: center;
  }
  .machine-avatar {
    width: 40px;
    height: 40px;
  }
}

/* Machine actions */
.machine-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  justify-content: center;
}
.machine-rating {
  cursor: pointer;
}
.machine-rating:hover {
  color: #fbbf24;
}

/* Rating Modal */
.rating-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: var(--z-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
}
.rating-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.rating-modal {
  background: var(--htc-bg-card);
  border: 1px solid var(--htc-border);
  border-radius: 16px;
  padding: 2rem;
  max-width: 400px;
  width: 90%;
  text-align: center;
}
.rating-stars {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: 1.5rem 0;
}
.rating-star {
  font-size: 2.5rem;
  color: #4b5563;
  cursor: pointer;
  transition: all 0.2s;
}
.rating-star:hover,
.rating-star.active {
  color: #fbbf24;
  transform: scale(1.1);
}
.rating-star.hovered {
  color: #fbbf24;
}

/* ============ Admin Dashboard Page ============ */
.panel-card{ background:var(--htc-bg-card); border:1px solid rgba(255,255,255,.08); border-radius:16px; padding:16px; }
.htc-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 7, 18, 0.85);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-overlay);
}
.htc-modal-overlay.active {
  display: flex;
  animation: fadeIn 0.2s ease;
}
.htc-modal {
  background: var(--htc-bg-card);
  border: 1px solid var(--htc-border);
  border-radius: 16px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}
.htc-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--htc-border);
}
.htc-modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.htc-modal-close {
  background: none;
  border: none;
  color: var(--htc-text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}
.htc-modal-close:hover {
  color: var(--htc-text-primary);
}
.htc-modal-body {
  padding: 1.5rem;
}
.htc-modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--htc-border);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* ============ Connect Page ============ */
/* Connect Page Styles */
.connect-sticky-header {
  background: transparent;
  padding: var(--space-6) var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--htc-border);
  flex-shrink: 0;
}
.connect-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.connect-info-row {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}
.connect-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--htc-bg-card);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-lg);
  color: var(--htc-text-secondary);
  font-size: 0.875rem;
}
.connect-badge strong {
  color: var(--htc-text-primary);
}
.connect-scroll-container {
  flex: 1;
  overflow: hidden;
  padding: var(--space-4) var(--space-6) var(--space-6);
  background: transparent;
  display: flex;
  flex-direction: column;
}
.terminal-card {
  background: var(--htc-bg-card);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}
.term-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--htc-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.term-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  color: var(--htc-text-primary);
}
.term-actions {
  display: flex;
  gap: var(--space-2);
}
#terminal {
  flex: 1;
  padding: var(--space-2);
  min-height: 300px;
  background: transparent;
}
.status-line {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--htc-border);
  font-size: 0.85rem;
  color: var(--htc-text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--htc-danger, #ef4444);
  margin-right: var(--space-2);
  display: inline-block;
}
.status-dot.connected {
  background: var(--htc-success, #22c55e);
}
.timer {
  font-weight: 700;
  color: var(--htc-text-primary);
}
.timer.warn {
  color: var(--htc-warning, #f59e0b);
}
.timer.crit {
  color: var(--htc-danger, #ef4444);
}

/* ===== SSH Layout: File Explorer + Terminal ===== */
.ssh-layout {
  display: flex;
  gap: var(--space-4);
  flex: 1;
  min-height: 0;
}

.ssh-terminal-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* --- File Explorer Sidebar --- */
.ssh-file-explorer {
  width: 260px;
  flex-shrink: 0;
  background: var(--htc-bg-card);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.25s ease, opacity 0.25s ease;
}

.ssh-file-explorer.collapsed {
  width: 0;
  border: none;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
}

.file-explorer-header {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--htc-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--htc-text-primary);
}

.file-explorer-btn {
  background: transparent;
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-md);
  color: var(--htc-text-muted);
  cursor: pointer;
  padding: 2px 6px;
  font-size: 0.75rem;
  transition: all 0.15s;
}
.file-explorer-btn:hover {
  background: var(--htc-bg-elevated, rgba(255,255,255,0.05));
  color: var(--htc-text-primary);
}

.file-explorer-path {
  padding: var(--space-2) var(--space-4);
  font-size: 0.75rem;
  color: var(--htc-text-muted);
  background: var(--htc-bg-secondary, rgba(0,0,0,0.2));
  font-family: 'Fira Code', ui-monospace, monospace;
  border-bottom: 1px solid var(--htc-border);
}

.file-explorer-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2) 0;
}

.file-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: 0.8rem;
  color: var(--htc-text-secondary);
  cursor: pointer;
  transition: background 0.12s;
  white-space: nowrap;
  overflow: hidden;
}
.file-item:hover {
  background: var(--htc-bg-elevated, rgba(255,255,255,0.04));
}
.file-item i {
  flex-shrink: 0;
  font-size: 0.9rem;
}
.file-item span {
  overflow: hidden;
  text-overflow: ellipsis;
}
.file-item-dir {
  color: var(--htc-primary, #58a6ff);
  font-weight: 500;
}
.file-item-exec {
  color: var(--htc-success, #3fb950);
}
.file-size {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--htc-text-muted);
  flex-shrink: 0;
}
.file-explorer-empty {
  padding: var(--space-4);
  font-size: 0.8rem;
  color: var(--htc-text-muted);
  text-align: center;
}

/* --- Terminal Header Dots (macOS style) --- */
.term-dots {
  display: inline-flex;
  gap: 6px;
  margin-right: var(--space-2);
}
.term-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.term-dot-red { background: #ff5f56; }
.term-dot-yellow { background: #ffbd2e; }
.term-dot-green { background: #27c93f; }

/* --- Quick Actions Bar --- */
.term-quick-actions {
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--htc-border);
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  background: rgba(0,0,0,0.15);
}

.quick-cmd-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  font-size: 0.7rem;
  font-family: 'Fira Code', ui-monospace, monospace;
  background: var(--htc-bg-secondary, rgba(255,255,255,0.04));
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-md);
  color: var(--htc-text-muted);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.quick-cmd-btn:hover {
  background: var(--htc-primary, #3b82f6);
  color: #fff;
  border-color: var(--htc-primary, #3b82f6);
}
.quick-cmd-btn i {
  font-size: 0.75rem;
}

/* --- Improved Terminal Container --- */
#terminal {
  flex: 1;
  padding: var(--space-3);
  min-height: 350px;
  background: #0d1117;
  border-radius: 0;
}

/* --- Improved Status Line --- */
.status-line {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--htc-border);
  font-size: 0.8rem;
  color: var(--htc-text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  background: rgba(0,0,0,0.1);
}
.status-left {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.status-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.status-shortcuts {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.7rem;
}
.status-shortcuts kbd {
  display: inline-block;
  padding: 1px 5px;
  font-size: 0.65rem;
  font-family: 'Fira Code', ui-monospace, monospace;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 3px;
  color: var(--htc-text-secondary);
}
.status-sep {
  color: var(--htc-text-muted);
  opacity: 0.4;
}

/* --- Toast Notification --- */
.ssh-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--htc-bg-card);
  color: var(--htc-text-primary);
  border: 1px solid var(--htc-border);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-lg);
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: var(--z-toast);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}
.ssh-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============ Public Profile Page ============ */
    .profile-shell{ max-width:960px; margin:0 auto; padding:48px 20px; }
    .profile-card{ border:1px solid rgba(255,255,255,.08); background:var(--htc-bg-card); border-radius:16px; padding:24px; overflow:hidden; position:relative; }
    .profile-banner{ height:120px; margin:-24px -24px 16px -24px; border-radius:16px 16px 0 0; background:linear-gradient(135deg, rgba(59,130,246,0.3) 0%, rgba(139,92,246,0.3) 100%); }
    .profile-header{ display:flex; gap:16px; align-items:center; flex-wrap:wrap; }
    .profile-avatar{ width:80px; height:80px; border-radius:50%; overflow:hidden; background:var(--htc-bg-secondary); display:grid; place-items:center; font-size:28px; position:relative; z-index:2; }
    .profile-avatar-wrapper{ position:relative; display:inline-block; }
    .profile-avatar-effect{ position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); width:140%; height:140%; pointer-events:none; z-index:1; border-radius:50%; }
    .stat-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:12px; margin-top:20px; }
    .stat-item{ border:1px solid rgba(255,255,255,.08); border-radius:12px; padding:12px; text-align:center; background:var(--htc-bg-secondary); }
    .trophy-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:12px; margin-top:16px; }
    .trophy-card{ border:1px solid rgba(255,255,255,.08); background:var(--htc-bg-card); border-radius:12px; padding:12px; display:flex; gap:12px; align-items:flex-start; }
    .trophy-card .icon{ width:42px; height:42px; border-radius:10px; display:grid; place-items:center; background:rgba(59,130,246,.18); color:#93c5fd; font-size:22px; }
    .trophy-card.locked{ opacity:.5; }
    .cosmetic-badge{ display:inline-flex; align-items:center; gap:6px; padding:4px 10px; border-radius:8px; font-size:0.75rem; font-weight:600; }
    .cosmetics-row{ display:flex; flex-wrap:wrap; gap:8px; margin-top:12px; }
    .cosmetic-tag{ display:inline-flex; align-items:center; gap:4px; padding:3px 8px; border-radius:6px; font-size:0.7rem; }
    .friend-btn{ padding:8px 16px; border-radius:8px; font-weight:600; font-size:0.875rem; cursor:pointer; transition:all 0.2s; border:none; display:inline-flex; align-items:center; gap:6px; }
    .friend-btn-primary{ background:var(--htc-primary); color:#fff; }
    .friend-btn-primary:hover{ background:var(--htc-primary-dark); }
    .friend-btn-success{ background:var(--htc-success); color:#fff; }
    .friend-btn-secondary{ background:var(--htc-bg-elevated); color:var(--htc-text-secondary); border:1px solid var(--htc-border); }
    .friend-btn-secondary:hover{ background:var(--htc-bg-hover); color:var(--htc-text-primary); }
    .friend-status-badge{ padding:6px 12px; border-radius:8px; font-size:0.75rem; font-weight:600; display:inline-flex; align-items:center; gap:6px; }
    .profile-actions{ display:flex; gap:8px; margin-top:12px; flex-wrap:wrap; }

/* ============ Header (Notifications, Daily Bonus, Level Up) ============ */
.htc-notification-wrapper {
  position: relative;
}
.htc-notification-btn {
  background: transparent;
  border: none;
  color: var(--htc-text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 10px;
  transition: all 0.2s;
  position: relative;
}
.htc-notification-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--htc-text-primary);
  transform: translateY(-1px);
}
.htc-notification-badge {
  position: absolute;
  top: -1px;
  right: -1px;
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: white;
  font-size: 0.6rem;
  font-weight: 700;
  padding: 0.15rem 0.4rem;
  border-radius: 10px;
  min-width: 16px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(239, 68, 68, 0.4);
}
.htc-notification-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  width: 380px;
  max-height: 500px;
  background: var(--htc-bg-secondary);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--htc-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.03);
  display: none;
  z-index: var(--z-overlay);
  overflow: hidden;
}
.htc-notification-dropdown.active {
  display: block;
  animation: slideDown 0.2s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
.htc-notification-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--htc-border);
  background: rgba(255, 255, 255, 0.02);
}
.htc-notification-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--htc-text-primary);
}
.htc-notification-mark-all {
  background: none;
  border: none;
  color: var(--htc-primary);
  font-size: 0.8rem;
  cursor: pointer;
}
.htc-notification-mark-all:hover {
  text-decoration: underline;
}
.htc-notification-list {
  max-height: 360px;
  overflow-y: auto;
}
.htc-notification-item {
  display: flex;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: all 0.2s;
}
.htc-notification-item:last-child {
  border-bottom: none;
}
.htc-notification-item:hover {
  background: rgba(255, 255, 255, 0.04);
}
.htc-notification-item.unread {
  background: rgba(79, 142, 247, 0.06);
  border-left: 2px solid var(--htc-primary);
}
.htc-notification-item.unread:hover {
  background: rgba(79, 142, 247, 0.1);
}
.htc-notification-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.15);
  color: var(--htc-primary);
  flex-shrink: 0;
  font-size: 1rem;
}
.htc-notification-content {
  flex: 1;
  min-width: 0;
}
.htc-notification-content-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--htc-text-primary);
  margin-bottom: 0.2rem;
}
.htc-notification-content-message {
  font-size: 0.8rem;
  color: var(--htc-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.htc-notification-time {
  font-size: 0.7rem;
  color: var(--htc-text-muted);
  margin-top: 0.3rem;
}
.htc-notification-empty {
  padding: 2rem;
  text-align: center;
  color: var(--htc-text-muted);
}
.htc-notification-loading {
  padding: 2rem;
  text-align: center;
  color: var(--htc-text-muted);
}
.htc-notification-footer {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--htc-border);
  text-align: center;
}
.htc-notification-clear {
  background: none;
  border: none;
  color: var(--htc-text-muted);
  font-size: 0.8rem;
  cursor: pointer;
}
.htc-notification-clear:hover {
  color: var(--htc-error);
}

/* Notification dropdown - responsive on mobile (fixes 380px overflow on narrow screens) */
@media (max-width: 420px) {
  .htc-notification-dropdown {
    width: calc(100vw - var(--space-4) * 2);
    max-width: 380px;
    right: 0;
    left: auto;
  }
}
.spin {
  animation: spin 1s linear infinite;
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.htc-dailybonus-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 7, 18, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: var(--z-overlay);
  animation: fadeIn 0.3s ease;
}
.htc-dailybonus-modal {
  text-align: center;
  padding: 3rem;
  background: var(--htc-bg-card);
  border-radius: 24px;
  border: 1px solid var(--htc-border);
  max-width: 400px;
  width: 100%;
}
.htc-dailybonus-icon {
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, #ec4899, #f43f5e);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  animation: bounce 1s ease infinite;
}
.htc-dailybonus-icon i {
  font-size: 3rem;
  color: #fff;
}
@keyframes bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}
.htc-dailybonus-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--htc-text-primary);
  margin-bottom: 0.5rem;
}
.htc-dailybonus-day {
  font-size: 1.25rem;
  color: #ec4899;
  font-weight: 700;
  margin-bottom: 1.5rem;
}
.htc-dailybonus-rewards {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}
.htc-dailybonus-reward {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
}
.htc-dailybonus-reward i {
  font-size: 1.5rem;
  color: #fbbf24;
}
.htc-dailybonus-streak {
  color: var(--htc-text-secondary);
  margin-bottom: 1.5rem;
}
.htc-dailybonus-streak i {
  color: #f97316;
}
.htc-levelup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 7, 18, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: var(--z-overlay);
  animation: fadeIn 0.3s ease;
}
.htc-levelup-modal {
  text-align: center;
  padding: 3rem;
  position: relative;
}
.htc-levelup-icon {
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--htc-success), #059669);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  animation: pulseGlow 1s ease infinite;
}
.htc-levelup-icon i {
  font-size: 3rem;
  color: #fff;
}
.htc-levelup-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--htc-text-primary);
  margin-bottom: 0.5rem;
  animation: slideUp 0.5s ease 0.2s both;
}
.htc-levelup-level {
  font-size: 4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--htc-accent), var(--htc-neon));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  animation: slideUp 0.5s ease 0.3s both;
}
.htc-levelup-bonus {
  font-size: 1.25rem;
  color: var(--htc-warning);
  margin-bottom: 2rem;
  animation: slideUp 0.5s ease 0.4s both;
}
@keyframes pulseGlow {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 0 30px 10px rgba(16, 185, 129, 0.2); }
}

/* ============================================
   ENHANCED LAYOUT POLISH
   ============================================ */

/* Page entrance animation */
.htc-main > .htc-container {
    animation: fadeInContent 0.4s ease-out;
}

@keyframes fadeInContent {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Stats row color accents per card */
.htc-stats-row .htc-stat-card:nth-child(1)::before {
    background: linear-gradient(90deg, #4f8ef7, #60a5fa);
}
.htc-stats-row .htc-stat-card:nth-child(2)::before {
    background: linear-gradient(90deg, #8b5cf6, #a78bfa);
}
.htc-stats-row .htc-stat-card:nth-child(3)::before {
    background: linear-gradient(90deg, #06b6d4, #22d3ee);
}
.htc-stats-row .htc-stat-card:nth-child(4)::before {
    background: linear-gradient(90deg, #10b981, #34d399);
}
.htc-stats-row .htc-stat-card:nth-child(5)::before {
    background: linear-gradient(90deg, #ec4899, #f472b6);
}

/* Selection color */
::selection {
    background: rgba(79, 142, 247, 0.3);
    color: #fff;
}

/* Smooth scrollbar for main content */
.htc-main {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.08) transparent;
}

.htc-main::-webkit-scrollbar {
    width: 6px;
}

.htc-main::-webkit-scrollbar-track {
    background: transparent;
}

.htc-main::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
}

.htc-main::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.12);
}

/* Table row hover transition */
.htc-table tr td {
    transition: background var(--transition-fast);
}

/* ============================================
   LANGUAGE TOGGLE (hide inactive language)
   ============================================ */
html[lang="en"] .lang-de {
    display: none !important;
}

html[lang="de"] .lang-en {
    display: none !important;
}

/* ============================================
   LANGUAGE SWITCHER (Header) - moved from inline styles
   ============================================ */
.htc-lang-switch {
    display: flex;
    align-items: center;
    gap: 6px;
}
.htc-lang-btn {
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: transparent;
    color: var(--htc-text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.htc-lang-btn.active {
    border-color: var(--htc-primary, #4f8ef7);
    background: rgba(79, 142, 247, 0.15);
    color: var(--htc-primary);
}
.htc-lang-btn:hover:not(.active) {
    border-color: rgba(255, 255, 255, 0.2);
    color: #b0b8c8;
}

/* ============================================
   USER AVATAR IMAGE (Header)
   ============================================ */
.htc-user-avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

/* ============================================
   TOAST NOTIFICATION SYSTEM
   ============================================ */
.htc-toast-container {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
    max-width: calc(100vw - 48px);
}
.htc-toast {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-radius: var(--radius-lg, 14px);
    background: var(--htc-surface-glass, rgba(6, 8, 16, 0.9));
    border: 1px solid var(--htc-border, rgba(255, 255, 255, 0.07));
    color: var(--htc-text-primary, #f0f4ff);
    font-size: 0.875rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--htc-shadow-lg);
    animation: htcToastIn 0.3s ease forwards;
    max-width: 400px;
    min-width: 280px;
}
.htc-toast.htc-toast-out {
    animation: htcToastOut 0.3s ease forwards;
}
.htc-toast-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}
.htc-toast-success .htc-toast-icon { color: var(--htc-success, #10b981); }
.htc-toast-error .htc-toast-icon { color: var(--htc-error, #ef4444); }
.htc-toast-warning .htc-toast-icon { color: var(--htc-warning, #f59e0b); }
.htc-toast-info .htc-toast-icon { color: var(--htc-info, #06b6d4); }
.htc-toast-message { flex: 1; }
.htc-toast-close {
    background: none;
    border: none;
    color: var(--htc-text-muted);
    cursor: pointer;
    padding: 4px;
    font-size: 1rem;
    line-height: 1;
    transition: color var(--transition-fast);
}
.htc-toast-close:hover { color: var(--htc-text-primary); }

@keyframes htcToastIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes htcToastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(40px); }
}

/* ============================================
   ACCESSIBILITY - Focus Styles
   ============================================ */
:focus-visible {
    outline: 2px solid var(--htc-primary, #4f8ef7);
    outline-offset: 2px;
}
.htc-btn:focus-visible,
.htc-nav-item:focus-visible,
.htc-tab:focus-visible,
.filter-chip:focus-visible {
    outline: 2px solid var(--htc-primary, #4f8ef7);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(79, 142, 247, 0.2);
}
.htc-input:focus-visible,
.htc-textarea:focus-visible,
.htc-select:focus-visible {
    outline: none;
    border-color: var(--htc-primary, #4f8ef7);
    box-shadow: 0 0 0 3px rgba(79, 142, 247, 0.15);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   REDUCED MOTION SUPPORT
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .lp-reveal { opacity: 1 !important; transform: none !important; }
    .htc-ai-chat-btn-pulse { display: none; }
}

/* ============================================
   FOOTER - Responsive
   ============================================ */
#htc-site-footer {
    margin-top: auto;
    padding: 20px 32px 20px calc(var(--sidebar-width, 260px) + 30px);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    background: linear-gradient(180deg, rgba(6, 8, 16, 0.6) 0%, rgba(6, 8, 16, 0.95) 100%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--htc-text-muted, #556376);
    font-size: 12px;
    transition: padding-left var(--transition-base);
}
.htc-auth-page #htc-site-footer {
    padding-left: 32px;
}

@media (max-width: 768px) {
    #htc-site-footer {
        padding-left: 32px;
    }
    .htc-footer-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }
    .htc-footer-right {
        gap: 8px;
    }
}

.htc-footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px 12px;
}
.htc-footer-text {
    margin: 0;
    color: var(--htc-text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}
.htc-footer-text i {
    font-size: 14px;
    opacity: 0.7;
}
.htc-footer-right {
    display: flex;
    align-items: center;
    gap: 12px;
}
.htc-footer-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4f8ef7, #8b5cf6);
    box-shadow: 0 0 6px rgba(79, 142, 247, 0.4);
    flex-shrink: 0;
}
#htc-site-footer .htc-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
}
#htc-site-footer .htc-footer-links a {
    color: var(--htc-text-muted);
    font-size: 0.8rem;
    text-decoration: none;
    transition: color var(--transition-fast);
}
#htc-site-footer .htc-footer-links a:hover {
    color: var(--htc-accent);
}

/* ============================================
   CHALLENGE HISTORY
   ============================================ */
.challenge-history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.challenge-history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--htc-surface-1, rgba(255,255,255,0.04));
    border-radius: var(--radius-md, 10px);
    border: 1px solid var(--htc-border, rgba(255,255,255,0.07));
}
.challenge-history-item .challenge-date {
    color: var(--htc-text-muted);
    font-size: 0.8rem;
}

/* ============================================
   ACTIVITY FEED (Dashboard)
   ============================================ */
.htc-activity-feed {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.htc-activity-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--htc-border, rgba(255,255,255,0.07));
}
.htc-activity-item:last-child {
    border-bottom: none;
}
.htc-activity-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1rem;
}
.htc-activity-icon-xp { background: rgba(59,130,246,0.15); color: var(--htc-primary); }
.htc-activity-icon-module { background: rgba(16,185,129,0.15); color: var(--htc-success); }
.htc-activity-icon-machine { background: rgba(251,191,36,0.15); color: var(--htc-warning); }
.htc-activity-icon-challenge { background: rgba(139,92,246,0.15); color: var(--htc-neon); }
.htc-activity-icon-friend { background: rgba(236,72,153,0.15); color: #ec4899; }
.htc-activity-icon-bonus { background: rgba(245,158,11,0.15); color: var(--htc-warning); }
.htc-activity-body {
    flex: 1;
    min-width: 0;
}
.htc-activity-text {
    font-size: 0.875rem;
    color: var(--htc-text-primary);
    line-height: 1.4;
}
.htc-activity-time {
    font-size: 0.75rem;
    color: var(--htc-text-muted);
    margin-top: 2px;
}

/* ============================================
   PREMIUM PAGE RESPONSIVE GRIDS
   ============================================ */
.htc-premium-plans {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.htc-premium-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .htc-premium-plans {
        grid-template-columns: 1fr;
    }
    .htc-premium-steps {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   PROFILE COSMETICS & XP HISTORY
   ============================================ */
.htc-avatar-effect-container {
    position: relative;
    display: inline-block;
}

.htc-avatar-effect {
    position: absolute;
    inset: -6px;
    border-radius: var(--radius-full);
    pointer-events: none;
    z-index: 0;
}

.htc-avatar-effect-container .htc-profile-avatar {
    position: relative;
    z-index: 1;
}

.animated-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
}

.htc-active-cosmetics {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.htc-cosmetic-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
}

.htc-cosmetic-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
}

.xp-history-list {
    display: flex;
    flex-direction: column;
}

.xp-history-item:last-child {
    border-bottom: none !important;
}

/* ============================================
   CERTIFICATE PRINT STYLES
   ============================================ */
@media print {
    .htc-sidebar, .htc-topbar, #htc-site-footer,
    .htc-ai-chat-btn, .htc-ai-chat-panel,
    .htc-notification-wrapper, .htc-btn {
        display: none !important;
    }
    .htc-main {
        margin: 0 !important;
        padding: 0 !important;
    }
    .htc-certificate {
        break-inside: avoid;
        border: 2px solid #333;
        padding: 2rem;
    }
}

/* ============================================
   LOOTBOX SPINNER
   ============================================ */
.lootbox-animation-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-toast);
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.lootbox-animation-container {
    width: 90%;
    max-width: 700px;
    padding: 2rem 0;
}
.lootbox-spinner-wrapper {
    position: relative;
    height: 100px;
    overflow: hidden;
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    background: rgba(15, 23, 42, 0.95);
}
.lootbox-spinner-indicator {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    transform: translateX(-50%);
    background: #fbbf24;
    z-index: 10;
    box-shadow: 0 0 12px rgba(251, 191, 36, 0.6);
}
.lootbox-spinner-indicator::before,
.lootbox-spinner-indicator::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
}
.lootbox-spinner-indicator::before {
    top: -2px;
    border-top-color: #fbbf24;
}
.lootbox-spinner-indicator::after {
    bottom: -2px;
    border-bottom-color: #fbbf24;
}
.lootbox-spinner-track {
    display: flex;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    transition: transform 5s cubic-bezier(0.15, 0.80, 0.30, 1.00);
}
.lootbox-spinner-item {
    width: 120px;
    min-width: 120px;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.8rem;
    font-weight: 600;
    color: #e5e7eb;
    padding: 0 8px;
    text-align: center;
}
.lootbox-spinner-item .spinner-item-icon {
    font-size: 1.6rem;
}
.lootbox-spinner-item .spinner-item-rarity {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   CHART ACCESSIBILITY
   ============================================ */
.htc-chart-summary {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   CUSTOM CHECKBOX (AGB / Terms acceptance)
   ============================================ */
.htc-checkbox-group {
    padding: 0.75rem 0;
}

.htc-checkbox-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.htc-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    cursor: pointer;
    font-size: 0.88rem;
    color: var(--htc-text-secondary);
    line-height: 1.5;
    user-select: none;
}

.htc-checkbox-box {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--htc-border);
    border-radius: 5px;
    background: var(--htc-surface-1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    margin-top: 0.1rem;
}

.htc-checkbox-check {
    opacity: 0;
    font-size: 0.8rem;
    color: #fff;
    transition: opacity var(--transition-fast);
}

.htc-checkbox-input:checked + .htc-checkbox-label .htc-checkbox-box {
    background: linear-gradient(135deg, var(--htc-primary), var(--htc-neon));
    border-color: var(--htc-primary);
}

.htc-checkbox-input:checked + .htc-checkbox-label .htc-checkbox-check {
    opacity: 1;
}

.htc-checkbox-input:focus + .htc-checkbox-label .htc-checkbox-box {
    box-shadow: 0 0 0 3px var(--htc-primary-glow);
    border-color: var(--htc-primary);
}

.htc-checkbox-label:hover .htc-checkbox-box {
    border-color: var(--htc-primary);
    background: rgba(79, 142, 247, 0.1);
}

/* ============================================
   MOBILE RESPONSIVE OVERRIDES
   (placed at end of file for correct cascade)
   ============================================ */

@media (max-width: 768px) {
    /* Fix Academy/Programming/Machines page mobile layout — override desktop rules */
    body.htc-academy-page,
    body.htc-programming-page,
    body.htc-machines-page {
        height: auto;
        min-height: 100vh;
        overflow: auto;
    }

    body.htc-academy-page .htc-main,
    body.htc-programming-page .htc-main,
    body.htc-machines-page .htc-main {
        margin-left: 0;
        overflow: visible;
        height: auto;
        min-height: 0;
        padding: 0;
    }

    body.htc-academy-page .academy-sticky-header,
    body.htc-programming-page .academy-sticky-header {
        padding: var(--space-4) var(--space-4) var(--space-3);
    }

    body.htc-academy-page .modules-scroll-container,
    body.htc-programming-page .modules-scroll-container {
        overflow: visible;
        padding: var(--space-3) var(--space-4) var(--space-4);
    }

    body.htc-machines-page .machines-sticky-header {
        padding: var(--space-4) var(--space-4) var(--space-3);
    }

    body.htc-machines-page .machines-scroll-container {
        overflow: visible;
        padding: var(--space-3) var(--space-4) var(--space-4);
    }

    .academy-header-row {
        flex-direction: column;
        align-items: stretch;
    }

    .academy-search-row {
        max-width: 100%;
    }

    /* SSH/Connect page mobile */
    .connect-sticky-header {
        padding: var(--space-4);
    }

    .connect-header-row {
        flex-direction: column;
        gap: var(--space-3);
    }

    .connect-scroll-container {
        padding: var(--space-3);
        overflow: visible;
    }

    .ssh-layout {
        flex-direction: column;
    }

    .ssh-file-explorer {
        width: 100% !important;
        max-height: 200px;
    }

    .ssh-file-explorer.collapsed {
        width: 0 !important;
        max-height: 0;
    }

    .terminal-card {
        border-radius: var(--radius-md);
    }

    .terminal-card #terminal {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        min-height: 250px;
    }

    .term-header {
        flex-wrap: wrap;
        gap: var(--space-2);
        padding: var(--space-3);
    }

    .term-actions {
        flex-wrap: wrap;
        gap: var(--space-2);
    }

    .term-actions .htc-btn {
        font-size: 0.75rem;
        padding: var(--space-1) var(--space-2);
    }

    .term-quick-actions {
        overflow-x: auto;
        flex-wrap: nowrap;
        gap: var(--space-1);
        padding: var(--space-2) var(--space-3);
    }

    .status-line {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
        font-size: 0.8rem;
    }

    .status-shortcuts {
        display: none;
    }

    /* Challenges page mobile — prevent buttons from stretching too wide */
    .htc-grid.htc-grid-2 .htc-card .htc-btn {
        width: auto;
        max-width: 100%;
        white-space: normal;
        text-align: center;
    }

    /* Machine page mobile */
    .machine-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    .machine-header-title {
        font-size: 1.25rem;
    }

    .target-box {
        flex-direction: column;
        align-items: stretch;
    }

    .flag-form {
        flex-direction: column;
    }

    .flag-form .htc-btn {
        width: 100%;
    }

    .machine-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    /* Extra small mobile fixes */
    .academy-filter-btn span {
        display: none;
    }

    .connect-info-row {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ============================================
   SETTINGS PAGE RESPONSIVE GRID
   ============================================ */
.htc-settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .htc-settings-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   AUTH PAGES RESPONSIVE
   ============================================ */
@media (max-width: 480px) {
    .htc-auth-container {
        padding: 1.5rem 0.75rem;
    }

    .htc-auth-card {
        padding: 1.5rem 1rem;
    }

    .htc-auth-title {
        font-size: 1.25rem;
    }

    .htc-auth-header {
        padding: 0 0.75rem;
    }
}

/* ============================================
   COMPREHENSIVE RESPONSIVE DESIGN FIXES
   Desktop / iPad / Mobile improvements
   ============================================ */

/* --- iPad / Tablet (768px - 1024px) --- */
@media (max-width: 1024px) {
    /* Profile summary: prevent cramped layout on tablet */
    .htc-profile-summary {
        flex-wrap: wrap;
    }

    /* Daily challenge hero: reduce padding on tablet */
    .challenge-hero {
        padding: 2rem;
    }

    .challenge-title {
        font-size: 1.6rem;
    }

    /* Search box: keep inline but reduce gap */
    .search-box {
        gap: 0.75rem;
    }

    /* Lootbox grid: better sizing on tablet */
    .lootbox-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    /* Market grid: better sizing on tablet */
    .market-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

/* --- Mobile (max-width: 768px) --- */
@media (max-width: 768px) {
    /* Rankings search: prevent overflow */
    .rankings-search {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .rankings-search input {
        min-width: 0;
        width: 100%;
    }

    .rankings-header {
        flex-direction: column;
        align-items: stretch;
    }

    /* Daily challenge: responsive adjustments */
    .challenge-hero {
        padding: 1.5rem;
    }

    .challenge-title {
        font-size: 1.4rem;
    }

    .challenge-desc {
        font-size: 1rem;
    }

    .challenge-icon {
        font-size: 3rem;
    }

    .xp-badge {
        font-size: 1rem;
        padding: 0.5rem 1.25rem;
    }

    .streak-section {
        padding: 1.25rem;
    }

    .streak-display {
        padding: 1rem;
    }

    .streak-number {
        font-size: 2.5rem;
    }

    .streak-flame {
        font-size: 3rem;
    }

    /* Calendar: make 7-col grid usable on mobile */
    .calendar-grid {
        gap: 0.25rem;
    }

    .calendar-day {
        font-size: 0.7rem;
        border-radius: 6px;
    }

    .claim-btn {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
        width: 100%;
    }

    /* Search box: stack vertically on mobile */
    .search-box {
        flex-direction: column;
    }

    .search-btn {
        width: 100%;
        text-align: center;
    }

    .search-input {
        font-size: 1rem;
        padding: 0.75rem 1rem;
    }

    .search-header {
        padding: 1.25rem;
    }

    /* Friends grid: single column on mobile */
    .friends-grid {
        grid-template-columns: 1fr;
    }

    .friend-card {
        padding: 1rem;
    }

    /* Friend tabs: scroll horizontally */
    .friends-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .friends-tab {
        white-space: nowrap;
        flex-shrink: 0;
    }

    /* Market grid: single column on mobile */
    .market-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .market-header {
        flex-direction: column;
        align-items: stretch;
    }

    .market-filters {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        gap: 0.35rem;
    }

    .filter-btn {
        white-space: nowrap;
        flex-shrink: 0;
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }

    /* Lootbox grid: single column on mobile */
    .lootbox-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .lootbox-card {
        padding: 1.25rem;
    }

    .lootbox-header {
        flex-direction: column;
        align-items: stretch;
    }

    /* Lootbox spinner: scale down items */
    .lootbox-spinner-item {
        width: 90px;
        min-width: 90px;
    }

    .lootbox-spinner-item .spinner-item-icon {
        font-size: 1.3rem;
    }

    .lootbox-spinner-item .spinner-item-rarity {
        font-size: 0.6rem;
    }

    /* News timeline: override inline style="padding-left: 2rem" from news.php */
    .news-timeline {
        padding-left: 1.5rem !important;
    }

    /* Toast notification: fit small screens */
    .htc-toast {
        min-width: 220px;
        max-width: calc(100vw - 2rem);
        font-size: 0.8rem;
        padding: 10px 14px;
    }

    /* Stat cards: reduce value font size */
    .htc-stat-value {
        font-size: 1.75rem;
    }

    .htc-stat-card {
        padding: var(--space-4);
    }

    /* Profile summary: stack on mobile */
    .htc-profile-summary {
        flex-direction: column;
        text-align: center;
        align-items: center;
        padding: var(--space-4);
    }

    .htc-profile-name {
        font-size: 1.25rem;
    }

    /* Notification dropdown: full width on small screens */
    .htc-notification-dropdown {
        width: calc(100vw - 1rem);
        max-width: 380px;
        right: -0.5rem;
    }

    /* Footer: ensure proper spacing */
    #htc-site-footer {
        padding: 16px 20px;
    }

    .htc-footer-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 6px;
    }

    .htc-footer-dot {
        display: none;
    }

    /* Path cards: reduce padding */
    .path-card {
        padding: 1.25rem;
    }

    /* Certificates grid: single column on mobile */
    .certificates-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .certificate-card {
        padding: 1.25rem;
    }

    /* Learning path modal on mobile */
    .learning-path-modal {
        width: calc(100vw - 2rem);
        max-height: 85vh;
    }

    /* Result cards: reduce hover shift */
    .result-card:hover {
        transform: none;
    }
}

/* --- Small Mobile (max-width: 480px) --- */
@media (max-width: 480px) {
    /* Calendar grid: smaller on very small screens */
    .calendar-grid {
        gap: 0.2rem;
    }

    .calendar-day {
        font-size: 0.65rem;
        border-radius: 4px;
    }

    /* Stat cards: even smaller values */
    .htc-stat-value {
        font-size: 1.5rem;
    }

    .htc-stat-label {
        font-size: 0.7rem;
    }

    .htc-stat-card {
        padding: var(--space-3);
    }

    /* Profile avatar: scale down */
    .htc-profile-avatar {
        width: 56px;
        height: 56px;
        font-size: 1.4rem;
    }

    /* Dashboard title: smaller font */
    .htc-dashboard-title {
        font-size: 1.25rem;
    }

    .htc-dashboard-subtitle {
        font-size: 0.85rem;
    }

    /* Challenge hero: even smaller */
    .challenge-hero {
        padding: 1.25rem;
    }

    .challenge-title {
        font-size: 1.2rem;
    }

    .challenge-icon {
        font-size: 2.5rem;
    }

    /* Streak numbers: scale down */
    .streak-number {
        font-size: 2rem;
    }

    .streak-flame {
        font-size: 2.5rem;
    }

    /* Search page: tighter layout */
    .search-header {
        padding: 1rem;
    }

    .search-input {
        padding: 0.6rem 0.75rem;
        font-size: 0.9rem;
    }

    .search-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }

    .result-title {
        font-size: 1.1rem;
    }

    .result-card {
        padding: 1rem;
    }

    /* Friend card: compact */
    .friend-avatar {
        width: 44px;
        height: 44px;
    }

    .friend-card {
        gap: 0.75rem;
        padding: 0.85rem;
    }

    /* Notification dropdown: full-width */
    .htc-notification-dropdown {
        position: fixed;
        top: var(--header-height);
        left: 0.5rem;
        right: 0.5rem;
        width: auto;
        max-width: none;
        border-radius: var(--radius-lg);
    }

    /* Lootbox spinner items: even smaller */
    .lootbox-spinner-item {
        width: 80px;
        min-width: 80px;
        font-size: 0.7rem;
    }

    .lootbox-spinner-item .spinner-item-icon {
        font-size: 1.1rem;
    }

    /* Cores display: smaller */
    .cores-display {
        padding: 0.5rem 1rem;
    }

    .cores-icon {
        font-size: 1.2rem;
    }

    .cores-amount {
        font-size: 1.2rem;
    }

    /* Module card compacting */
    .htc-module-card {
        padding: var(--space-3);
    }

    /* Toast: fit very small screens */
    .htc-toast {
        min-width: 180px;
        font-size: 0.78rem;
        padding: 8px 12px;
    }
}

/* --- Very small screens (max-width: 360px) --- */
@media (max-width: 360px) {
    /* Calendar: 5 columns to prevent cramping */
    .calendar-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    /* Stats row: single column */
    .htc-stats-row {
        grid-template-columns: 1fr;
    }

    /* Topbar: ultra compact */
    .htc-topbar .htc-btn-spawn span {
        display: none;
    }

    /* Notification badge text */
    .htc-notification-btn {
        padding: var(--space-1);
    }
}