:root {
    /* Primary - Teal (from screenshot) */
    --primary: #2D8B8B;
    --primary-light: #3AA9A9;
    --primary-dark: #1F6B6B;
    --primary-50: #E8F5F5;
    --primary-100: #C7E8E8;
    --primary-200: #9DDADA;
    --primary-700: #1A5E5E;
    --danger: #dc3545;
    
    /* Secondary - Gold/Amber */
    --secondary: #E6A23C;
    --secondary-light: #F0B85A;
    --secondary-dark: #C98A2E;
    --secondary-50: #FEF6E8;
    --secondary-100: #FCE9C5;
    --secondary-700: #8B5A1B;
    
    /* Accent - Blue */
    --accent: #409EFF;
    --accent-light: #66B1FF;
    --accent-dark: #337ECC;
    --accent-50: #ECF5FF;
    
    /* Success - Green */
    --success: #67C23A;
    --success-light: #85CE61;
    --success-dark: #529B2E;
    --success-50: #F0F9EB;
    
    /* Error - Red */
    --error: #F56C6C;
    --error-light: #F89898;
    --error-dark: #C45656;
    --error-50: #FEF0F0;
    
    /* Dark */
    --dark: #1E3A3A;
    --dark-light: #2D5454;
    --dark-darker: #0F1F1F;
    
    /* Neutrals */
    --white: #FFFFFF;
    --gray-50: #FAFBFC;
    --gray-100: #F4F6F8;
    --gray-200: #E4E7EB;
    --gray-300: #CBD2D9;
    --gray-400: #9AA5B1;
    --gray-500: #7B8794;
    --gray-600: #616E7C;
    --gray-700: #3E4C59;
    --gray-800: #1F2933;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    --gradient-hero: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 100%);
    --gradient-gold: linear-gradient(135deg, var(--secondary) 0%, #D4941F 100%);
    --gradient-card: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
    
    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);
    --shadow-gold: 0 4px 20px rgba(230,162,60,0.25);
    --shadow-primary: 0 4px 20px rgba(45,139,139,0.25);
    
    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-full: 9999px;
    
    /* 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;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-arabic: 'Cairo', 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ─── Utility: Force LTR ─── */
.ltr-left {
    direction: ltr !important;
    text-align: left !important;
}

/* ═══════════════════════════════════════════════════════════════
   Reset & Base
   ═══════════════════════════════════════════════════════════════ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 15px;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-100);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

html[dir="rtl"] body {
    font-family: var(--font-arabic);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

/* ═══════════════════════════════════════════════════════════════
   Container
   ═══════════════════════════════════════════════════════════════ */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* ═══════════════════════════════════════════════════════════════
   Loading Overlay
   ═══════════════════════════════════════════════════════════════ */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

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

.loader {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

/* ═══════════════════════════════════════════════════════════════
   Top Bar (Contact Info)
   ═══════════════════════════════════════════════════════════════ */
.top-bar {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--space-2) 0;
    font-size: 0.8rem;
}

.top-bar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.top-bar-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-600);
}

.top-bar-item .icon {
    font-size: 16px;
    color: var(--primary);
}

/* ═══════════════════════════════════════════════════════════════
   Header - Compact
   ═══════════════════════════════════════════════════════════════ */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    gap: var(--space-4);
    position: relative;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
}

.logo-text span {
    color: var(--primary);
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    background: var(--primary);
    padding: var(--space-1);
    border-radius: var(--radius-full);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    border: 2px solid var(--secondary);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.5rem 1.2rem;
    border-radius: var(--radius-full);
    color: rgba(255,255,255,0.9);
    font-weight: 700;
    font-size: 1rem;
    transition: all var(--transition);
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--white);
    background: rgba(255,255,255,0.15);
}

.nav-link.active {
    color: var(--primary-dark);
    background: var(--white);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.nav-link.active .icon {
    color: var(--secondary);
}

.nav-link .icon {
    font-size: 20px;
}

.nav-link--dimmed {
    opacity: 0.4;
    cursor: default;
}

.nav-link--dimmed:hover {
    opacity: 0.5;
    background: none;
}

.nav-link.live {
    position: relative;
}

.nav-link.live::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--error);
    border-radius: 50%;
    animation: pulse-dot 1.5s ease infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.2); }
}

/* Header Right */
.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Language Switcher */
.lang-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--white);
    background: var(--primary-dark);
    border: 2px solid rgba(255,255,255,0.3);
    transition: all var(--transition);
}

.lang-btn:hover {
    background: var(--white);
    color: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* Auth Links - Luxury Design */
.auth-links {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.auth-links .btn {
    white-space: nowrap;
    font-weight: 600;
    letter-spacing: 0.01em;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s ease;
}

.auth-links .btn-outline {
    border: 2px solid var(--gray-300);
    color: var(--dark);
    background: var(--white);
}

.auth-links .btn-outline:hover {
    border-color: var(--primary);
    color: var(--white);
    background: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.auth-links .btn-ghost {
    background: var(--primary);    /* #2D8B8B */
    color: var(--white);
    border: 2px solid var(--primary);
    box-shadow: 0 2px 8px rgba(45, 139, 139, 0.3);
}

.auth-links .btn-ghost:hover {
    color: var(--white);
    background: var(--dark);
    border-color: var(--primary);
}

.auth-links .btn-primary {
    background: linear-gradient(135deg, var(--danger) 0%, #c82333 100%);
    border: none;
    color: var(--white);
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.35);
}

.auth-links .btn-primary:hover {
    background: linear-gradient(135deg, #c82333 0%, #a71d2a 100%);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.45);
    transform: translateY(-2px);
}

/* User Button */
.user-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1);
    padding-inline-end: var(--space-3);
    background: var(--gray-100);
    border-radius: var(--radius-full);
    transition: all var(--transition);
}

.user-btn:hover {
    background: var(--gray-200);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    font-size: 0.85rem;
}

.user-name {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--gray-700);
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: var(--space-2);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius);
    color: var(--gray-700);
    border: none;
    cursor: pointer;
    transition: background var(--transition);
}

.mobile-toggle:hover {
    background: var(--gray-200);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    inset-inline-end: 0;
    min-width: 180px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition);
    z-index: 50;
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: var(--space-3);
    border-bottom: 1px solid var(--gray-100);
}

.dropdown-header strong {
    display: block;
    font-size: 0.9rem;
}

.dropdown-header small {
    color: var(--gray-500);
    font-size: 0.75rem;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius);
    color: var(--gray-700);
    font-size: 0.9rem;
    transition: all var(--transition);
}

.dropdown-item:hover {
    background: var(--gray-100);
}

.dropdown-item .icon {
    font-size: 18px;
    color: var(--gray-500);
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-100);
    margin: var(--space-2) 0;
}

/* ═══════════════════════════════════════════════════════════════
   Hero Section - COMPACT
   ═══════════════════════════════════════════════════════════════ */
.hero {
    padding: var(--space-4) 0 var(--space-5);
    position: relative;
    overflow: hidden;
}

[dir="rtl"] .hero {
    background: linear-gradient(to left, var(--dark) 0%, var(--primary-dark) 50%, var(--primary-light) 100%);
}

[dir="ltr"] .hero {
    background: linear-gradient(to right, var(--dark) 0%, var(--primary-dark) 50%, var(--primary-light) 100%);
}

.hero--slim {
    padding: 1.25rem 0 1.5rem;
}

.hero--slim .hero-title {
    font-size: 1.4rem;
}

.hero--slim .hero-deco-1 {
    font-size: 52px;
}

.hero--slim .hero-deco-2 {
    font-size: 46px;
}

.hero--slim .hero-deco-3 {
    font-size: 40px;
}

.hero::before {
    display: none;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
}

.hero-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--space-2);
    line-height: 1.4;
}

.hero-subtitle {
    font-size: 1.1rem;
    line-height: 1.6;
    font-weight: 600;
    letter-spacing: 0.02em;
    animation: heroTextPulse 3s ease-in-out infinite;
}

@keyframes heroTextPulse {
    0%, 100% { color: rgba(255,255,255,0.9); }
    50% { color: var(--secondary-light); }
}

.hero-star {
    display: inline-block;
    color: var(--secondary-light);
    font-size: 1.4em;
    margin: 0 0.5rem;
    vertical-align: middle;
    animation: heroStarTwinkle 2s ease-in-out infinite;
}

.hero-star:first-child {
    animation-delay: 0s;
}

.hero-star:last-child {
    animation-delay: 1s;
}

@keyframes heroStarTwinkle {
    0%, 100% { opacity: 0.3; transform: scale(0.7); }
    50% { opacity: 1; transform: scale(1.3); text-shadow: 0 0 12px rgba(240,184,90,0.6); }
}

/* Hero Decorative Icons */
.hero-deco-icon {
    position: absolute;
    pointer-events: none;
    z-index: 0;
    top: 50%;
    transform: translateY(-50%);
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}

[dir="rtl"] .hero-deco-1 { left: 5%; right: auto; }
[dir="rtl"] .hero-deco-2 { left: 22%; right: auto; }
[dir="rtl"] .hero-deco-3 { left: 42%; right: auto; }
[dir="ltr"] .hero-deco-1 { right: 5%; left: auto; }
[dir="ltr"] .hero-deco-2 { right: 22%; left: auto; }
[dir="ltr"] .hero-deco-3 { right: 42%; left: auto; }

.hero-deco-1 {
    font-size: 72px;
    opacity: 0.9;
    animation: heroFloat1 4s ease-in-out infinite;
}

.hero-deco-2 {
    font-size: 62px;
    opacity: 0.85;
    animation: heroFloat2 5s ease-in-out infinite;
}

.hero-deco-3 {
    font-size: 52px;
    opacity: 0.85;
    animation: heroFloat3 6s ease-in-out infinite;
}

@keyframes heroFloat1 {
    0%, 100% { transform: translateY(-50%) rotate(0deg); }
    50% { transform: translateY(calc(-50% - 8px)) rotate(5deg); }
}

@keyframes heroFloat2 {
    0%, 100% { transform: translateY(-50%) scale(1); }
    50% { transform: translateY(calc(-50% - 6px)) scale(1.05); }
}

@keyframes heroFloat3 {
    0%, 100% { transform: translateY(-50%) rotate(0deg); }
    50% { transform: translateY(calc(-50% - 10px)) rotate(-5deg); }
}

/* Search Box in Hero */
.hero-search {
    display: flex;
    background: var(--white);
    border-radius: var(--radius-full);
    padding: var(--space-1);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
}

.hero-search input {
    flex: 1;
    border: none;
    padding: var(--space-3) var(--space-4);
    font-size: 0.95rem;
    background: transparent;
    min-width: 200px;
}

.hero-search input:focus {
    outline: none;
}

.hero-search .btn {
    flex-shrink: 0;
}

/* Join Box */
.join-box {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    min-width: 280px;
}

.join-box-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--white);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: var(--space-3);
}

.join-box-title .icon {
    color: var(--secondary);
}

.join-form {
    display: flex;
    gap: var(--space-2);
}

.join-input {
    flex: 1;
    padding: var(--space-3);
    border: none;
    border-radius: var(--radius);
    font-size: 0.95rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.join-input:focus {
    outline: 2px solid var(--secondary);
}

/* ═══════════════════════════════════════════════════════════════
   Buttons
   ═══════════════════════════════════════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition);
    white-space: nowrap;
    border: 2px solid transparent;
}

.btn .icon {
    font-size: 18px;
}

.btn-primary {
    background: var(--gradient-secondary);
    color: var(--white);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(230,162,60,0.35);
}

.btn-secondary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-primary);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(45,139,139,0.35);
}

.btn-accent {
    background: linear-gradient(135deg, var(--danger) 0%, #c82333 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.45);
    background: linear-gradient(135deg, #c82333 0%, #a71d2a 100%);
}

.btn-outline {
    border-color: var(--gray-300);
    color: var(--gray-700);
    background: var(--white);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-ghost {
    color: var(--gray-600);
}

.btn-ghost:hover {
    color: var(--primary);
    background: var(--primary-50);
}

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: 0.8rem;
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: 1.2rem;
    font-weight: 700;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ═══════════════════════════════════════════════════════════════
   Section
   ═══════════════════════════════════════════════════════════════ */
.section {
    padding: var(--space-6) 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
    gap: var(--space-4);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
}

.section-title .icon {
    color: var(--primary);
}

.section-title .live-dot {
    width: 10px;
    height: 10px;
    background: var(--error);
    border-radius: 50%;
    animation: pulse-dot 1.5s ease infinite;
}

/* ═══════════════════════════════════════════════════════════════
   Filters Bar
   ═══════════════════════════════════════════════════════════════ */
.filters-bar {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
    align-items: center;
}

.filter-select {
    padding: var(--space-2) var(--space-3);
    padding-inline-end: var(--space-8);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 0.9rem;
    background: var(--white);
    cursor: pointer;
    min-width: 150px;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary);
}

/* Filter Wrapper */
.filter-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

/* Loading Spinner */
.filter-loading {
    position: absolute;
    inset-inline-end: 28px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
}

.filter-loading .material-icons-round {
    font-size: 18px;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.spin {
    animation: spin 1s linear infinite;
}

/* Icon Button */
.btn-icon {
    padding: var(--space-2);
    min-width: auto;
    border-radius: var(--radius);
}

.btn-icon .material-icons-round {
    font-size: 20px;
}

.btn-outline-danger {
    border: 1px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline-danger:hover {
    background: var(--danger);
    border-color: var(--danger);
    color: var(--white);
}

/* ═══════════════════════════════════════════════════════════════
   Quiz Grid
   ═══════════════════════════════════════════════════════════════ */
.quizzes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

/* Quiz Card - Luxury Style */
.quiz-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.quiz-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.quiz-card-header {
    background: var(--gradient-primary);
    padding: var(--space-4);
    color: var(--white);
    position: relative;
}

.quiz-card-badge {
    position: absolute;
    top: var(--space-3);
    inset-inline-end: var(--space-3);
    background: rgba(255,255,255,0.2);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.quiz-card-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
    line-height: 1.4;
}

.quiz-card-desc {
    font-size: 0.85rem;
    opacity: 0.9;
    line-height: 1.5;
}

.quiz-card-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-3);
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px solid rgba(255,255,255,0.2);
}

.quiz-info-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.8rem;
    opacity: 0.9;
}

.quiz-info-item .icon {
    font-size: 0.9rem;
}

.quiz-card-body {
    padding: var(--space-4);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.quiz-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.quiz-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.quiz-tag .icon {
    font-size: 14px;
}

.quiz-tag-system {
    background: var(--primary-50);
    color: var(--primary-700);
}

.quiz-tag-class {
    background: var(--secondary-50);
    color: var(--secondary-700);
}

.quiz-tag-subject {
    background: var(--accent-50);
    color: var(--accent-dark);
}

.quiz-tag-teacher,
.quiz-teacher-line {
    cursor: pointer;
    color: var(--primary);
    font-weight: 600;
    transition: all var(--transition);
}
.quiz-tag-teacher:hover,
.quiz-teacher-line:hover {
    color: var(--white);
}
.quiz-teacher-line {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.9rem;
    padding: var(--space-2) var(--space-4);
    margin-bottom: var(--space-3);
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    border-radius: var(--radius-full);
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.25);
}
.quiz-teacher-line:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.35);
}
.quiz-teacher-line .icon {
    font-size: 18px;
}
.quiz-teacher-line::after {
    content: 'arrow_forward_ios';
    font-family: 'Material Icons Round';
    font-size: 14px;
    opacity: 0.7;
    margin-inline-start: var(--space-1);
}

.quiz-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.quiz-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.8rem;
    color: var(--gray-600);
}

.quiz-meta-item .icon {
    font-size: 16px;
    color: var(--primary);
}

.quiz-card-footer {
    margin-top: auto;
    padding-top: var(--space-3);
    border-top: 1px solid var(--gray-100);
}

.quiz-card-footer .btn {
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.03em;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 15px rgba(45,139,139,0.3);
    transition: all 0.25s ease;
}

.quiz-card-footer .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(45,139,139,0.4);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ═══════════════════════════════════════════════════════════════
   Data Table Style (like screenshot)
   ═══════════════════════════════════════════════════════════════ */
.data-table-wrapper {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.data-table-header {
    background: var(--primary);
    color: var(--white);
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.data-table-header .live-dot {
    width: 10px;
    height: 10px;
    background: var(--error);
    border-radius: 50%;
    animation: pulse-dot 1.5s ease infinite;
}

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

.data-table th {
    background: var(--gray-100);
    padding: var(--space-3) var(--space-4);
    text-align: start;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-200);
}

.data-table th .icon {
    font-size: 16px;
    vertical-align: middle;
    margin-inline-end: var(--space-1);
    color: var(--primary);
}

.data-table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.9rem;
}

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

.data-table tr:hover td {
    background: var(--gray-50);
}

.data-table .badge {
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-primary {
    background: var(--primary-50);
    color: var(--primary);
}

.badge-secondary {
    background: var(--secondary-50);
    color: var(--secondary-dark);
}

.badge-success {
    background: var(--success-50);
    color: var(--success-dark);
}

.badge-error {
    background: var(--error-50);
    color: var(--error-dark);
}

/* ═══════════════════════════════════════════════════════════════
   Form Elements
   ═══════════════════════════════════════════════════════════════ */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--space-2);
    color: var(--gray-700);
}
.form-label .required { color: var(--error, #ef4444); font-weight: 700; }
.form-label .form-optional { color: var(--gray-400); font-weight: 400; font-size: 0.8rem; }

.form-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: all var(--transition);
    background: var(--white);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.form-input::placeholder {
    color: var(--gray-400);
}

.form-input-icon {
    position: relative;
}

.form-input-icon .icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    inset-inline-start: var(--space-4);
    color: var(--gray-400);
    pointer-events: none;
}

.form-input-icon .form-input {
    padding-inline-start: calc(var(--space-4) + 24px);
}

.form-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: var(--space-1);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.form-error {
    color: var(--error);
    font-size: 0.85rem;
    margin-top: var(--space-1);
}

.ident-login-link {
    display: inline-block;
    margin-top: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: var(--primary);
    color: var(--white) !important;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
}
.ident-login-link:hover {
    background: var(--primary-dark);
}

/* Registration Error Dialog */
.reg-error-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: var(--space-4);
    animation: fadeIn 0.2s ease;
}
.reg-error-dialog {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-6) var(--space-6) var(--space-5);
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    animation: slideUp 0.3s ease;
}
.reg-error-icon {
    margin-bottom: var(--space-3);
}
.reg-error-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-3);
}
.reg-error-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-4);
    text-align: start;
}
.reg-error-list li {
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-1);
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius);
    color: #991b1b;
    font-size: 0.9rem;
    font-weight: 500;
}
.reg-error-btn {
    padding: var(--space-2) var(--space-6);
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition);
}
.reg-error-btn:hover {
    background: var(--primary-dark);
}
@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ═══════════════════════════════════════════════════════════════
   Empty State
   ═══════════════════════════════════════════════════════════════ */
.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-4);
}

.empty-icon {
    width: 80px;
    height: 80px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
}

.empty-icon .icon {
    font-size: 40px;
    color: var(--gray-400);
}

.empty-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-2);
}

.empty-text {
    color: var(--gray-500);
}

/* ═══════════════════════════════════════════════════════════════
   Mobile Menu
   ═══════════════════════════════════════════════════════════════ */
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    max-width: 85vw;
    height: 100%;
    height: 100dvh;
    background: var(--white);
    z-index: 1001;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    display: flex;
    flex-direction: column;
    visibility: hidden;
    box-shadow: -4px 0 20px rgba(0,0,0,0.15);
}

html[dir="rtl"] .mobile-menu {
    right: auto;
    left: 0;
    transform: translateX(-100%);
    box-shadow: 4px 0 20px rgba(0,0,0,0.15);
}

.mobile-menu.active,
html[dir="rtl"] .mobile-menu.active {
    transform: translateX(0);
    visibility: visible;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--gray-200);
    background: var(--primary);
    color: var(--white);
    flex-shrink: 0;
}

.mobile-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    color: var(--white);
    background: rgba(255,255,255,0.2);
    border: none;
    cursor: pointer;
    transition: background var(--transition);
}

.mobile-close:hover {
    background: rgba(255,255,255,0.3);
}

.mobile-nav {
    flex: 1;
    padding: var(--space-4);
    overflow-y: auto;
}

.mobile-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius);
    color: var(--gray-700);
    font-weight: 500;
    margin-bottom: var(--space-1);
    transition: all var(--transition);
}

.mobile-link:hover,
.mobile-link.active {
    background: var(--primary-50);
    color: var(--primary);
}

.mobile-link .icon {
    font-size: 20px;
}

.mobile-link--dimmed {
    opacity: 0.35;
    cursor: default;
}

.mobile-link--dimmed:hover {
    opacity: 0.45;
    background: none;
    color: var(--gray-700);
}

.mobile-link.text-danger {
    color: var(--error);
}

.mobile-link.text-danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.mobile-divider {
    height: 1px;
    background: var(--gray-200);
    margin: var(--space-3) 0;
}

.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    height: 100dvh;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
    cursor: pointer;
}

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

/* ═══════════════════════════════════════════════════════════════
   Flash Messages
   ═══════════════════════════════════════════════════════════════ */
.flash-container {
    position: fixed;
    top: 80px;
    inset-inline-end: var(--space-4);
    z-index: 150;
}

.flash {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--space-2);
    animation: slideIn 0.3s ease;
    max-width: 350px;
}

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

@keyframes slideInRTL {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

html[dir="rtl"] .flash {
    animation: slideInRTL 0.3s ease;
}

.flash-icon {
    font-size: 20px;
}

.flash-success .flash-icon { color: var(--success); }
.flash-error .flash-icon { color: var(--error); }
.flash-warning .flash-icon { color: var(--secondary); }
.flash-info .flash-icon { color: var(--accent); }

.flash-text {
    flex: 1;
    font-size: 0.9rem;
}

.flash-close {
    color: var(--gray-400);
    padding: var(--space-1);
}

.flash-close:hover {
    color: var(--gray-600);
}

/* ═══════════════════════════════════════════════════════════════
   Auth Pages — Centered Luxury Card
   ═══════════════════════════════════════════════════════════════ */
.auth-page {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-50, #f9fafb) 0%, #eef1f5 100%);
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 500px;
    background: var(--white, #fff);
    border-radius: 1.25rem;
    box-shadow: 0 12px 40px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    overflow: hidden;
}

/* Card Header */
.auth-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 2rem;
    border-bottom: 1px solid var(--gray-100, #f3f4f6);
}

.auth-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--gray-800, #1f2937);
    font-weight: 700;
    font-size: 1.2rem;
}

.auth-logo img {
    height: 42px;
    width: auto;
}

/* Tabs */
.auth-tabs {
    display: flex;
    border-bottom: 2px solid var(--gray-100, #f3f4f6);
    background: var(--gray-50, #f9fafb);
}

.auth-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1.1rem 0.5rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--gray-400, #9ca3af);
    text-decoration: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}

.auth-tab .icon {
    font-size: 22px;
}

.auth-tab:hover {
    color: var(--gray-600, #4b5563);
    background: var(--gray-100, #f3f4f6);
}

.auth-tab.active {
    color: var(--primary, #4f46e5);
    border-bottom-color: var(--primary, #6366f1);
    background: transparent;
}

/* Body & Footer */
.auth-body {
    padding: 2rem 2.25rem;
}

.auth-body .form-label {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--gray-700, #374151);
}

.auth-body .form-input {
    padding: 0.8rem 1rem;
    font-size: 1.05rem;
    border-radius: 0.625rem;
    border: 1.5px solid var(--gray-200, #e5e7eb);
}

.auth-body .form-input:focus {
    border-color: var(--primary, #6366f1);
    box-shadow: 0 0 0 4px var(--primary-50, rgba(99,102,241,0.1));
}

.auth-body .form-input-icon .icon {
    font-size: 22px;
    left: 1rem;
    right: auto;
}

.auth-body .form-input-icon .form-input {
    padding-left: calc(1rem + 32px);
    padding-right: 1rem;
    padding-block: 0.75rem;
}

/* Password fields: eye toggle on the start side */
.auth-body .form-input-icon--pwd .form-input {
    padding-inline-start: 3rem;
    padding-inline-end: 1rem;
}

.auth-body .form-input-icon--pwd .password-toggle {
    inset-inline-end: auto;
    inset-inline-start: 0.75rem;
}

.auth-body .form-group {
    margin-bottom: 1.5rem;
}

.auth-body .form-hint {
    font-size: 0.85rem;
    margin-top: 0.4rem;
}

.auth-body .btn-lg {
    padding: 0.9rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 0.625rem;
    margin-top: 0.5rem;
}

.auth-form-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gray-800, #1f2937);
    margin: 0 0 0.5rem;
    text-align: center;
}

.auth-form-subtitle {
    font-size: 1rem;
    color: var(--gray-500, #6b7280);
    margin: 0 0 2rem;
    text-align: center;
    line-height: 1.5;
}

.auth-card-footer {
    padding: 1.25rem 2rem;
    border-top: 1px solid var(--gray-100, #f3f4f6);
    text-align: center;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-500, #6b7280);
    text-decoration: none;
}

.back-link:hover {
    color: var(--primary, #4f46e5);
}

.back-link .icon {
    font-size: 20px;
}

/* Auth Helpers */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1.5rem 0;
    color: var(--gray-400, #9ca3af);
    font-size: 0.9rem;
    font-weight: 500;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--gray-200, #e5e7eb);
}

.auth-switch {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 1rem;
    color: var(--gray-500, #6b7280);
}

.auth-switch a {
    color: var(--primary, #4f46e5);
    font-weight: 700;
    text-decoration: none;
}

.auth-switch a:hover {
    text-decoration: underline;
}

/* ─── Returning Guest Card ─── */
.returning-guest-section {
    text-align: center;
}

.returning-guest-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    background: var(--gray-50, #f9fafb);
    border-radius: 0.75rem;
    border: 2px solid var(--gray-200, #e5e7eb);
}

.returning-guest-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--primary-light, #e0e7ff);
    color: var(--primary, #4f46e5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.returning-guest-avatar .material-icons-round {
    font-size: 36px;
}

.returning-guest-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--gray-800, #1f2937);
    margin: 0 0 0.25rem;
}

.returning-guest-label {
    font-size: 0.9rem;
    color: var(--gray-500, #6b7280);
}

/* ─── Gender Radios ─── */
.gender-radios {
    display: flex;
    gap: 1.5rem;
}

.form-radio {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-700, #374151);
}

.form-radio input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary, #6366f1);
}

/* ─── Password Toggle ─── */
.password-toggle {
    position: absolute;
    inset-inline-end: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray-400, #9ca3af);
    cursor: pointer;
    padding: 4px;
}

.password-toggle:hover {
    color: var(--gray-600, #4b5563);
}

/* ─── Auth Responsive ─── */
@media (max-width: 540px) {
    .auth-page {
        padding: 0;
        align-items: stretch;
        background: var(--white, #fff);
    }
    .auth-card {
        max-width: 100%;
        box-shadow: none;
        border-radius: 0;
        min-height: 100vh;
    }
    .auth-body {
        padding: 1.5rem 1.25rem;
    }
    .auth-card-header {
        padding: 1rem 1.25rem;
    }
    .auth-tab {
        font-size: 0.95rem;
        padding: 0.9rem 0.25rem;
    }
    .auth-form-title {
        font-size: 1.35rem;
    }
    .auth-form-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
}

/* ═══════════════════════════════════════════════════════════════
   Quiz Info Page
   ═══════════════════════════════════════════════════════════════ */
.quiz-info-page {
    max-width: 700px;
    margin: 0 auto;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-500);
    font-weight: 500;
    margin-bottom: var(--space-4);
    transition: color var(--transition);
}

.back-link:hover {
    color: var(--primary);
}

.quiz-info-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.quiz-info-header {
    background: var(--gradient-hero);
    color: var(--white);
    padding: var(--space-6);
    display: flex;
    gap: var(--space-4);
}

.quiz-info-icon {
    width: 56px;
    height: 56px;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.quiz-info-icon .icon {
    font-size: 28px;
    color: var(--secondary);
}

.quiz-info-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.quiz-info-desc {
    opacity: 0.9;
    line-height: 1.6;
    font-size: 0.95rem;
}

.quiz-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-bottom: 1px solid var(--gray-200);
}

.quiz-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-4);
    text-align: center;
    border-inline-end: 1px solid var(--gray-200);
}

.quiz-stat:last-child {
    border-inline-end: none;
}

.quiz-stat-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-2);
}

.quiz-stat-icon .icon {
    color: var(--primary);
    font-size: 20px;
}

.quiz-stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
}

.quiz-stat-label {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.quiz-rules {
    padding: var(--space-5);
    border-bottom: 1px solid var(--gray-200);
}

.quiz-rules-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.quiz-rules-title .icon {
    color: var(--primary);
}

.quiz-rules-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.quiz-rules-list li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--gray-600);
    font-size: 0.9rem;
}

.quiz-rules-list .icon {
    color: var(--success);
    font-size: 18px;
}

.quiz-info-actions {
    padding: var(--space-5);
    text-align: center;
}

/* Quiz Mode Selector (radio cards) */
.quiz-mode-selector {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.quiz-mode-radio {
    flex: 1;
    padding: var(--space-4) var(--space-3);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.quiz-mode-radio:hover {
    border-color: var(--gray-300);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.quiz-mode-radio.active {
    border-color: var(--primary);
    background: rgba(45,139,139,0.05);
    box-shadow: 0 0 0 3px rgba(45,139,139,0.12);
    transform: translateY(-2px);
}

.quiz-mode-radio input[type="radio"] {
    display: none;
}

.quiz-mode-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
}

.quiz-mode-icon .material-icons-round {
    font-size: 1.75rem;
}

.mode-emoji {
    font-size: 1.6rem;
    line-height: 1;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.1));
}

.quiz-mode-radio.active .quiz-mode-icon {
    animation: modeIconPulse 2s ease-in-out infinite;
}

@keyframes modeIconPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.alone-icon {
    background: var(--gray-100);
    color: var(--gray-500);
}

.quiz-mode-radio.active .alone-icon {
    background: rgba(45,139,139,0.12);
    color: var(--primary);
}

.challenge-icon {
    background: rgba(220,53,69,0.08);
    color: #dc3545;
}

.quiz-mode-radio.active .challenge-icon {
    background: rgba(220,53,69,0.15);
    color: #dc3545;
}

.quiz-mode-text {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--gray-600);
}

.quiz-mode-radio.active .quiz-mode-text {
    color: var(--gray-900);
    font-size: 1.15rem;
}

.challenge-link-box {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.challenge-link-box .form-input {
    flex: 1;
    font-size: 0.85rem;
    direction: ltr;
    text-align: left;
}

.challenge-link-box .btn-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: #25D366;
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s;
    text-decoration: none;
}

.btn-whatsapp:hover {
    background: #1da851;
    color: var(--white);
}

/* ═══════════════════════════════════════════════════════════════
   Challenge Room Page
   ═══════════════════════════════════════════════════════════════ */
.challenge-room-page {
    max-width: 700px;
    margin: 0 auto;
}

.challenge-room-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.challenge-room-header {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 50%, #a71d2a 100%);
    padding: var(--space-6) var(--space-5);
    text-align: center;
    color: var(--white);
    position: relative;
}

.challenge-badge {
    width: 64px;
    height: 64px;
    background: rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-3);
    backdrop-filter: blur(10px);
}

.challenge-badge .material-icons-round {
    font-size: 32px;
    color: var(--white);
}

.challenge-room-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 var(--space-1);
}

.challenge-room-subtitle {
    font-size: 0.95rem;
    opacity: 0.9;
    margin: 0;
}

.challenger-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--gray-100);
}

.challenger-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    flex-shrink: 0;
}

.challenger-details {
    display: flex;
    flex-direction: column;
}

.challenger-label {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.challenger-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-900);
}

.challenge-room-quiz-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-5);
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--gray-800);
    border-bottom: 1px solid var(--gray-100);
}

.challenge-room-quiz-title .icon {
    color: var(--primary);
}

.challenge-share-section {
    padding: var(--space-4) var(--space-5);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-100);
}

.challenge-share-hint {
    margin: 0 0 var(--space-3);
    color: var(--gray-600);
    font-size: 0.9rem;
}

.challenge-room-action {
    padding: var(--space-4) var(--space-5);
}

.challenge-participants {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--gray-100);
}

.challenge-participants h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 var(--space-3);
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.challenge-participants h3 .icon {
    font-size: 1.2rem;
    color: var(--primary);
}

.challenge-participants.empty {
    text-align: center;
}

.challenge-participants.empty p {
    color: var(--gray-500);
    margin: 0;
}

.participant-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--gray-50);
}

.participant-row:last-child {
    border-bottom: none;
}

.participant-rank {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--gray-600);
    flex-shrink: 0;
}

.participant-rank.rank-1 { background: #ffd700; color: #7a6400; }
.participant-rank.rank-2 { background: #c0c0c0; color: #555; }
.participant-rank.rank-3 { background: #cd7f32; color: #5a3000; }

.participant-name {
    flex: 1;
    font-weight: 500;
}

.participant-score {
    font-weight: 600;
    color: var(--primary);
}

.participant-time {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.login-hint {
    margin-top: var(--space-2);
    color: var(--gray-500);
    font-size: 0.85rem;
}

/* Previous Attempts */
.previous-attempts {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-top: var(--space-4);
    box-shadow: var(--shadow);
}

.attempts-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.attempts-title .icon {
    color: var(--primary);
}

.attempts-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.attempt-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3);
    background: var(--gray-50);
    border-radius: var(--radius);
}

.attempt-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.attempt-date {
    color: var(--gray-600);
    font-size: 0.9rem;
}

.attempt-score {
    font-weight: 700;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
}

.attempt-score.passed {
    background: var(--success-50);
    color: var(--success-dark);
}

.attempt-score.failed {
    background: var(--error-50);
    color: var(--error-dark);
}

/* ═══════════════════════════════════════════════════════════════
   Quiz Play Page
   ═══════════════════════════════════════════════════════════════ */
.quiz-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--gray-100);
}

.quiz-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
}

.quiz-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.quiz-exit-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius);
    color: var(--gray-600);
    transition: all var(--transition);
}

.quiz-exit-btn:hover {
    background: var(--error-50);
    color: var(--error);
}

.quiz-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
}

.quiz-progress-text {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.quiz-timer {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--primary-50);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.quiz-timer .icon {
    font-size: 18px;
}

.quiz-timer.warning {
    background: var(--error-50);
    color: var(--error);
    animation: pulse 1s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.quiz-progress-bar {
    height: 3px;
    background: var(--gray-200);
}

.quiz-progress-fill {
    height: 100%;
    background: var(--gradient-secondary);
    transition: width 0.3s ease;
}

.quiz-questions {
    flex: 1;
    padding: var(--space-4);
    overflow-y: auto;
}

.question-slide {
    max-width: 700px;
    margin: 0 auto;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.question-slide[hidden] {
    display: none;
}

.question-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-lg);
}

.question-number {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: var(--space-3);
}

.question-points {
    padding: var(--space-1) var(--space-2);
    background: var(--secondary-50);
    border-radius: var(--radius-full);
    color: var(--secondary-dark);
    font-size: 0.75rem;
    font-weight: 600;
}

.question-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
    line-height: 1.6;
    margin-bottom: var(--space-5);
}

.question-image {
    margin-bottom: var(--space-4);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.question-image img {
    max-width: 100%;
    height: auto;
}

/* Answer Options */
.answers-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.answer-option {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition);
}

.answer-option:hover {
    border-color: var(--primary-200);
    background: var(--primary-50);
}

.answer-option input {
    display: none;
}

.answer-option input:checked + .answer-marker {
    background: var(--gradient-primary);
    color: var(--white);
    border-color: var(--primary);
}

.answer-option input:checked ~ .answer-text {
    color: var(--primary-dark);
    font-weight: 600;
}

.answer-option:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-50);
}

.answer-marker {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    font-weight: 600;
    color: var(--gray-600);
    flex-shrink: 0;
    transition: all var(--transition);
}

.answer-text {
    flex: 1;
    color: var(--gray-700);
}

/* True/False Style */
.true-false {
    flex-direction: row;
    gap: var(--space-4);
}

.true-false .answer-option {
    flex: 1;
    justify-content: center;
    flex-direction: column;
    padding: var(--space-4);
}

.true-false .answer-marker {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    margin-bottom: var(--space-2);
}

.true-false .answer-marker .icon {
    font-size: 24px;
}

.tf-true { border-color: var(--success); }
.tf-false { border-color: var(--error); }

.answer-option input:checked + .tf-true {
    background: var(--gradient-primary);
    border-color: var(--success);
}

.answer-option input:checked + .tf-false {
    background: linear-gradient(135deg, var(--error), var(--error-dark));
    border-color: var(--error);
}

/* Fill Blank */
.fill-blank-input .form-input {
    font-size: 1rem;
    padding: var(--space-4);
    text-align: center;
}

/* Quiz Footer */
.quiz-footer {
    padding: var(--space-3) var(--space-4);
    background: var(--white);
    border-top: 1px solid var(--gray-200);
}

.quiz-nav-dots {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    flex-wrap: wrap;
}

.nav-dot {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    transition: all var(--transition);
}

.nav-dot:hover {
    border-color: var(--primary-200);
}

.nav-dot.current {
    background: var(--primary-50);
    border-color: var(--primary);
    color: var(--primary);
}

.nav-dot.answered {
    background: var(--success-50);
    border-color: var(--success);
    color: var(--success-dark);
}

.quiz-nav-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
}

/* ═══════════════════════════════════════════════════════════════
   Quiz Result Page
   ═══════════════════════════════════════════════════════════════ */
.result-page {
    max-width: 700px;
    margin: 0 auto;
    padding: var(--space-4);
}

.result-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.result-header {
    padding: var(--space-8);
    color: var(--white);
}

.result-header.passed {
    background: linear-gradient(135deg, var(--success), var(--success-dark));
}

.result-header.failed {
    background: linear-gradient(135deg, var(--error), var(--error-dark));
}

.result-icon {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
}

.result-icon .icon {
    font-size: 40px;
}

.result-score {
    font-size: 3rem;
    font-weight: 800;
}

.result-label {
    font-size: 1.2rem;
    opacity: 0.9;
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-bottom: 1px solid var(--gray-200);
}

.result-stat {
    padding: var(--space-4);
    border-inline-end: 1px solid var(--gray-200);
}

.result-stat:last-child {
    border-inline-end: none;
}

.result-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.result-stat-label {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.result-actions {
    padding: var(--space-5);
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    flex-wrap: wrap;
}

/* Answer Review */
.answer-review {
    margin-top: var(--space-6);
}

.answer-review-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.answer-review-title .icon {
    color: var(--primary);
}

.review-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-3);
    box-shadow: var(--shadow-sm);
    border-inline-start: 4px solid var(--gray-300);
}

.review-item.correct {
    border-color: var(--success);
}

.review-item.wrong {
    border-color: var(--error);
}

.review-question {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: var(--space-3);
}

.review-answers {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    font-size: 0.9rem;
}

.review-your-answer,
.review-correct-answer {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.review-your-answer .icon {
    color: var(--error);
}

.review-correct-answer .icon {
    color: var(--success);
}

.review-explanation {
    margin-top: var(--space-3);
    padding: var(--space-3);
    background: var(--accent-50);
    border-radius: var(--radius);
    font-size: 0.9rem;
    color: var(--gray-700);
}

/* ═══════════════════════════════════════════════════════════════
   My Results Page
   ═══════════════════════════════════════════════════════════════ */
.results-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.result-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    transition: all var(--transition);
}

.result-item:hover {
    box-shadow: var(--shadow-md);
}

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

.result-item-title {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: var(--space-1);
}

.result-item-meta {
    display: flex;
    gap: var(--space-4);
    font-size: 0.85rem;
    color: var(--gray-500);
}

.result-item-score {
    text-align: center;
}

.result-item-percentage {
    font-size: 1.5rem;
    font-weight: 700;
}

.result-item-percentage.passed {
    color: var(--success);
}

.result-item-percentage.failed {
    color: var(--error);
}

.result-type-badge {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    vertical-align: middle;
    margin-inline-start: 6px;
}

.result-type-challenge {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #78350f;
}

/* ═══════════════════════════════════════════════════════════════
   My Challenges + Challenge Details
   ═══════════════════════════════════════════════════════════════ */

/* Hero */
.mch-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-xl);
    padding: var(--space-6) var(--space-7, 2.5rem);
    margin-bottom: var(--space-7, 2.5rem);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    position: relative;
    overflow: hidden;
}

.mch-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 60%);
    pointer-events: none;
}

.mch-hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    position: relative;
}

.mch-hero-badge {
    width: 56px;
    height: 56px;
    background: rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    margin-bottom: var(--space-1);
}

.mch-hero-badge .material-icons-round { font-size: 28px; }

.mch-hero-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: -0.01em;
}

.mch-hero-sub {
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.85;
}

.mch-hero-count {
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1;
    text-shadow: 0 2px 8px rgba(0,0,0,0.15);
    position: relative;
}

/* Shared table */
.mch-table-wrap {
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.04);
    overflow: hidden;
    margin: 0 auto;
    width: fit-content;
    min-width: 600px;
    max-width: 100%;
}

.mch-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.mch-table thead {
    background: linear-gradient(135deg, #1a3a3a 0%, #1e4d4d 40%, #2a6b6b 100%);
}

.mch-table th {
    padding: 14px 16px;
    text-align: center;
    vertical-align: middle;
}

.mch-table th .material-icons-round {
    font-size: 22px;
    color: #fbbf24;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.3));
}

.mch-table td {
    padding: 12px 16px;
    border-bottom: 1px solid #e8edf2;
    vertical-align: middle;
    text-align: center;
    white-space: nowrap;
}

.mch-table tbody tr:last-child td { border-bottom: none; }
.mch-table tbody tr { transition: background 0.2s; }
.mch-table tbody tr:nth-child(even) { background: #f7fafa; }
.mch-table tbody tr:hover { background: #e6f3f3; }

/* Status pill (shared) */
.mch-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    white-space: nowrap;
}

.mch-pill .material-icons-round { font-size: 15px; }

.mch-pill--active {
    background: linear-gradient(135deg, #16a34a, #059669);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(22,163,74,0.3);
    animation: mch-pulse 2s infinite;
}

.mch-pill--ended {
    background: var(--gray-200);
    color: var(--gray-600);
}

/* Result pass/fail pills */
.res-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
}

.res-pill .material-icons-round { font-size: 16px; }

.res-pill--passed {
    background: rgba(16,185,129,0.12);
    color: var(--success);
}

.res-pill--failed {
    background: rgba(239,68,68,0.12);
    color: var(--error);
}

@keyframes mch-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(22,163,74,0.4); }
    50% { box-shadow: 0 0 0 6px rgba(22,163,74,0); }
}

/* --- My Challenges list columns --- */
.mch-th-quiz { text-align: start !important; }

.mch-td-quiz {
    text-align: start !important;
    font-weight: 700;
    color: #1a3a3a;
    font-size: 1rem;
}

.mch-td-date {
    white-space: nowrap;
    color: var(--gray-800);
    font-weight: 700;
    font-size: 0.92rem;
}

.mch-td-creator {
    font-weight: 600;
    color: var(--gray-700);
}

.mch-td-count {
    font-weight: 900;
    font-size: 1.1rem;
    color: #1e4d4d;
}

.mch-th-view,
.mch-td-view { width: 100px; }

.mch-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* Close button */
.mch-btn-close {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: 2px solid var(--error);
    background: transparent;
    color: var(--error);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
}

.mch-btn-close:hover {
    background: var(--error);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(239,68,68,0.3);
    transform: scale(1.1);
}

.mch-btn-close .material-icons-round { font-size: 18px; }

/* View button - icon only, purple pill */
.mch-btn-view {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #7c3aed, #6d28d9);
    color: var(--white);
    text-decoration: none;
    transition: all var(--transition);
    box-shadow: 0 3px 10px rgba(124,58,237,0.35);
}

.mch-btn-view:hover {
    background: linear-gradient(135deg, #6d28d9, #5b21b6);
    color: var(--white);
    transform: scale(1.12);
    box-shadow: 0 5px 18px rgba(124,58,237,0.45);
}

.mch-btn-view .material-icons-round { font-size: 19px; }

/* Share buttons - copy & whatsapp */
.mch-btn-copy,
.mch-btn-wa {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
}

.mch-btn-copy {
    background: var(--gray-100);
    color: var(--gray-600);
}

.mch-btn-copy:hover {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.1);
}

.mch-btn-copy .material-icons-round { font-size: 17px; }

.mch-btn-wa {
    background: #25D366;
    padding: 0;
}

.mch-btn-wa:hover {
    transform: scale(1.1);
    box-shadow: 0 3px 10px rgba(37,211,102,0.4);
}

.mch-btn-wa img {
    border-radius: var(--radius-full);
}

/* --- Challenge Details page --- */
.chd-leaderboard .chd-info-header {
    background: var(--white);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--gray-100);
}

.chd-info-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
}

.chd-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 var(--space-3);
}

.chd-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.chd-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.85rem;
    color: var(--gray-600);
    background: var(--gray-50);
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.chd-meta-item .material-icons-round {
    font-size: 16px;
    color: var(--primary);
}

/* Leaderboard section */
.chd-leaderboard {
    margin: 0 auto;
    width: fit-content;
    min-width: 600px;
    max-width: 100%;
}

.chd-leaderboard .mch-table-wrap,
.chd-table-wrap {
    box-shadow: none;
    border-radius: 0 0 16px 16px;
    width: 100%;
    min-width: 0;
}

.chd-lb-header {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-5);
    background: var(--white);
    border-radius: 16px 16px 0 0;
    box-shadow: 0 8px 40px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.04);
    color: #1a3a3a;
}

.chd-lb-header .material-icons-round {
    font-size: 26px;
    color: #1e4d4d;
}

.chd-lb-header h2 {
    font-size: 1.1rem;
    font-weight: 800;
    margin: 0;
}

/* Leaderboard table columns */
.chd-th-rank { text-align: center; }
.chd-th-name { text-align: start !important; }
.chd-th-score,
.chd-th-time,
.chd-th-comment { text-align: center; }

.chd-td-rank { text-align: center; }
.chd-td-score { text-align: center; }
.chd-td-time { text-align: center; color: var(--gray-600); font-size: 0.88rem; font-weight: 700; }
.chd-td-comment { text-align: center; }

/* My row highlight */
.mch-me {
    background: #e6f3f3 !important;
    border-inline-start: 4px solid #1e4d4d;
}

.mch-me:hover { background: #d0eaea !important; }

/* Rank elements */
.mch-medal { font-size: 1.5rem; line-height: 1; }

.mch-rank-num {
    display: inline-flex;
    width: 30px;
    height: 30px;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: var(--radius-full);
    font-weight: 800;
    font-size: 0.85rem;
    color: var(--gray-600);
}

/* Name column */
.chd-td-name {
    text-align: start !important;
    font-weight: 600;
    color: var(--gray-800);
    font-size: 0.95rem;
}

.mch-you {
    background: linear-gradient(135deg, #1e4d4d, #2a6b6b);
    color: var(--white);
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-weight: 700;
    margin-inline-start: 6px;
    vertical-align: middle;
}

/* Score percentage */
.chd-pct {
    font-weight: 900;
    font-size: 1.05rem;
}

/* Score/comment colors */
.chd-c-gold { color: #b8860b; }
.chd-c-green { color: #16a34a; }
.chd-c-amber { color: #d97706; }
.chd-c-red { color: #dc2626; }

/* Comment pill with icon */
.chd-comment-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 700;
    white-space: nowrap;
}

.chd-comment-pill .material-icons-round { font-size: 16px; }

.chd-comment-pill.chd-c-gold {
    background: #fef3c7;
    color: #92400e;
}

.chd-comment-pill.chd-c-green {
    background: #dcfce7;
    color: #166534;
}

.chd-comment-pill.chd-c-amber {
    background: #fef9c3;
    color: #854d0e;
}

.chd-comment-pill.chd-c-red {
    background: #fee2e2;
    color: #991b1b;
}

/* Empty states */
.mch-empty,
.chd-empty {
    padding: var(--space-8) var(--space-5);
    text-align: center;
    color: var(--gray-400);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.mch-empty .material-icons-round,
.chd-empty .material-icons-round {
    font-size: 48px;
    display: block;
    margin-bottom: var(--space-3);
}

.chd-empty p { margin: var(--space-2) 0 0; }

/* Responsive */
@media (max-width: 768px) {
    .mch-hero {
        flex-direction: column;
        text-align: center;
        padding: var(--space-5);
    }
    .mch-hero-content { align-items: center; }
    .mch-hero-badge { width: 48px; height: 48px; }
    .mch-hero-badge .material-icons-round { font-size: 24px; }
    .mch-hero-title { font-size: 1.3rem; }

    .mch-table-wrap,
    .chd-leaderboard {
        width: 100%;
        min-width: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .mch-table { min-width: 550px; }

    /* Hide creator + comment columns on tablet */
    .mch-th-creator,
    .mch-td-creator { display: none; }

    .chd-th-comment,
    .chd-td-comment { display: none; }

    .chd-info-header { flex-direction: column; }
}

@media (max-width: 480px) {
    .mch-table { min-width: 420px; }

    /* Hide date + time columns on mobile */
    .mch-th-date,
    .mch-td-date { display: none; }

    .chd-th-time,
    .chd-td-time { display: none; }
}


/* ═══════════════════════════════════════════════════════════════
   Profile Page
   ═══════════════════════════════════════════════════════════════ */
.profile-page {
    max-width: 600px;
    margin: 0 auto;
}

.profile-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.profile-header {
    background: var(--gradient-hero);
    padding: var(--space-6);
    text-align: center;
    color: var(--white);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-3);
    font-size: 2rem;
    font-weight: 700;
}

.profile-name {
    font-size: 1.25rem;
    font-weight: 700;
}

.profile-email {
    opacity: 0.8;
    font-size: 0.9rem;
}

.profile-form {
    padding: var(--space-6);
}

/* ═══════════════════════════════════════════════════════════════
   404 Page
   ═══════════════════════════════════════════════════════════════ */
.minimal-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    background: var(--gray-100);
}

.error-page {
    text-align: center;
    max-width: 400px;
}

.error-code {
    font-size: 6rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.error-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: var(--space-2);
}

.error-text {
    color: var(--gray-500);
    margin-bottom: var(--space-6);
}

/* ─── Not Found (reusable) ─── */
.not-found-page {
    text-align: center;
    max-width: 420px;
    margin: 4rem auto;
    padding: 2rem;
}

.not-found-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
}

.not-found-icon .material-icons-round {
    font-size: 40px;
    color: var(--gray-400);
}

.not-found-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: var(--space-2);
}

.not-found-msg {
    color: var(--gray-500);
    font-size: 1rem;
    margin-bottom: var(--space-6);
    line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════
   Footer
   ═══════════════════════════════════════════════════════════════ */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: var(--space-8) 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-4);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.1rem;
    font-weight: 700;
}

.footer-logo {
    width: 36px;
    height: 36px;
}

.footer-links {
    display: flex;
    gap: var(--space-5);
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

.footer-copy {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* Page Load Time */
.page-load-time {
    margin-top: var(--space-2);
    font-size: 0.7rem;
    font-family: 'Inter', monospace;
    color: var(--gray-500);
    background: rgba(255,255,255,0.08);
    padding: 3px 10px;
    border-radius: var(--radius);
    letter-spacing: 0.3px;
    user-select: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* ═══════════════════════════════════════════════════════════════
   Toast
   ═══════════════════════════════════════════════════════════════ */
.toast-container {
    position: fixed;
    top: calc(var(--header-height, 70px) + var(--space-3));
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-5);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: toastSlideDown 0.3s ease;
    font-size: 0.95rem;
    font-weight: 500;
    white-space: nowrap;
}

@keyframes toastSlideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════════════════════════
   Dialog Overlay
   ═══════════════════════════════════════════════════════════════ */
.dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: fadeIn 0.2s;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.dialog {
    background: var(--white);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 440px;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.25s ease-out;
}
@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}
.dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--gray-200);
}
.dialog-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}
.dialog-body {
    padding: var(--space-6) var(--space-5);
    overflow-y: auto;
    flex: 1;
}
.dialog-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-10);
    color: var(--gray-400);
}

/* Smart Dialog (alert / confirm / info) */
.smart-dialog .dialog {
    max-width: 380px;
}
.smart-dialog .dialog-icon-wrap {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
}
.smart-dialog .dialog-icon-wrap .material-icons-round {
    font-size: 32px;
    color: var(--white);
}
.smart-dialog .dialog-icon-wrap.type-error {
    background: linear-gradient(135deg, var(--error), #dc2626);
    box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3);
}
.smart-dialog .dialog-icon-wrap.type-warning {
    background: linear-gradient(135deg, var(--warning), #d97706);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}
.smart-dialog .dialog-icon-wrap.type-success {
    background: linear-gradient(135deg, var(--success), #059669);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}
.smart-dialog .dialog-icon-wrap.type-info {
    background: linear-gradient(135deg, var(--accent), var(--primary));
    box-shadow: 0 4px 16px rgba(45, 139, 139, 0.3);
}
.smart-dialog .dialog-icon-wrap.type-confirm {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 4px 16px rgba(45, 139, 139, 0.3);
}
.smart-dialog .dialog-body {
    text-align: center;
    padding: var(--space-6) var(--space-5) var(--space-2);
}
.smart-dialog .dialog-msg-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 var(--space-2);
}
.smart-dialog .dialog-msg {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin: 0;
}
.smart-dialog .dialog-footer {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5) var(--space-5);
}
.smart-dialog .dialog-footer .btn {
    flex: 1;
    justify-content: center;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}
.smart-dialog .dialog-footer .btn-cancel {
    background: var(--gray-100);
    color: var(--gray-700);
}
.smart-dialog .dialog-footer .btn-cancel:hover {
    background: var(--gray-200);
}
.smart-dialog .dialog-footer .btn-ok {
    color: var(--white);
}
.smart-dialog .dialog-footer .btn-ok.type-error {
    background: linear-gradient(135deg, var(--error), #dc2626);
}
.smart-dialog .dialog-footer .btn-ok.type-error:hover {
    filter: brightness(1.08);
}
.smart-dialog .dialog-footer .btn-ok.type-warning {
    background: linear-gradient(135deg, var(--warning), #d97706);
}
.smart-dialog .dialog-footer .btn-ok.type-warning:hover {
    filter: brightness(1.08);
}
.smart-dialog .dialog-footer .btn-ok.type-success {
    background: linear-gradient(135deg, var(--success), #059669);
}
.smart-dialog .dialog-footer .btn-ok.type-success:hover {
    filter: brightness(1.08);
}
.smart-dialog .dialog-footer .btn-ok.type-info,
.smart-dialog .dialog-footer .btn-ok.type-confirm {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}
.smart-dialog .dialog-footer .btn-ok.type-info:hover,
.smart-dialog .dialog-footer .btn-ok.type-confirm:hover {
    filter: brightness(1.08);
}
.smart-dialog.closing .dialog-overlay {
    animation: fadeOut 0.2s ease forwards;
}
.smart-dialog.closing .dialog {
    animation: slideDown 0.2s ease forwards;
}
@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}
@keyframes slideDown {
    from { transform: translateY(0); opacity: 1; }
    to { transform: translateY(20px); opacity: 0; }
}

/* ═══════════════════════════════════════════════════════════════
   Teacher Profile (inside Dialog) — Luxury
   ═══════════════════════════════════════════════════════════════ */
.teacher-profile {
    text-align: center;
}
.teacher-avatar-wrap {
    width: 96px;
    height: 96px;
    margin: 0 auto var(--space-4);
    border-radius: 50%;
    padding: 3px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
}
.teacher-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--white);
}
.teacher-avatar-placeholder {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-50), var(--accent-50));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    border: 3px solid var(--white);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.teacher-avatar-placeholder .material-icons-round {
    font-size: 40px;
    color: var(--gray-400);
}
.teacher-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin: 0 0 var(--space-1);
}
.teacher-specialization {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0 0 var(--space-4);
}
.teacher-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}
.teacher-stat {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.85rem;
    color: var(--gray-600);
    background: var(--gray-50);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
}
.teacher-stat .icon {
    font-size: 16px;
}
.teacher-subjects {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
}
.teacher-subject-tag {
    background: linear-gradient(135deg, var(--accent-50), var(--primary-50));
    color: var(--accent-dark);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Contact Cards */
.teacher-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}
.teacher-contact-card {
    display: flex;
    align-items: center;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    border: 1px solid var(--gray-100);
}
.teacher-contact-card:hover {
    border-color: var(--primary-100);
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.08);
}
.teacher-contact-main {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: var(--gray-700);
    text-decoration: none;
    flex: 1;
    min-width: 0;
    font-size: 0.9rem;
    transition: color var(--transition);
}
.teacher-contact-main:hover {
    color: var(--primary);
}
.teacher-contact-main .icon {
    font-size: 20px;
    color: var(--primary);
    flex-shrink: 0;
}
.teacher-contact-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    direction: ltr;
    text-align: start;
}
.teacher-contact-actions {
    display: flex;
    align-items: center;
    gap: 0;
}
.teacher-copy-btn,
.teacher-wa-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 100%;
    min-height: 44px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--gray-400);
    transition: all var(--transition);
    border-inline-start: 1px solid var(--gray-100);
}
.teacher-copy-btn:hover {
    background: var(--primary-50);
    color: var(--primary);
}
.teacher-copy-btn.copied {
    background: var(--success-50);
    color: var(--success);
}
.teacher-copy-btn .material-icons-round {
    font-size: 18px;
}
.teacher-wa-btn {
    color: #25d366;
    text-decoration: none;
}
.teacher-wa-btn:hover {
    background: #e8faf0;
    color: #128c7e;
}
.teacher-wa-btn .material-icons-round {
    font-size: 20px;
}

/* ═══════════════════════════════════════════════════════════════
   Utilities
   ═══════════════════════════════════════════════════════════════ */

/* Copy Button (generic) */
.copy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-1) var(--space-2);
    border: none;
    background: var(--gray-100);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--gray-500);
    transition: all var(--transition);
}
.copy-btn:hover {
    background: var(--primary-50);
    color: var(--primary);
}
.copy-btn.copied {
    background: var(--success-50);
    color: var(--success);
}
.copy-btn .material-icons-round,
.copy-btn .material-icons {
    font-size: 16px;
}

.text-center { text-align: center; }
.text-danger { color: var(--error) !important; }
.text-success { color: var(--success) !important; }
.text-primary { color: var(--primary) !important; }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.d-flex { display: flex; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.items-center { align-items: center; }

.w-full { width: 100%; }
.hide { display: none !important; }

/* ═══════════════════════════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-search {
        margin: 0 auto;
    }
    
    .join-box {
        width: 100%;
        max-width: 400px;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .auth-buttons {
        display: none;
    }
    
    .auth-links {
        gap: var(--space-1);
    }
    
    .auth-links .btn-text {
        display: none;
    }
    
    .auth-links .btn {
        padding: var(--space-2);
    }
    
    .auth-links .btn .icon {
        margin: 0;
    }
    
    .user-name {
        display: none;
    }
    
    .hero {
        padding: var(--space-5) 0 var(--space-4);
    }

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

    .hero-deco-icon {
        display: none;
    }
    
    .section {
        padding: var(--space-4) 0;
    }
    
    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-select {
        width: 100%;
    }
    
    .quizzes-grid {
        grid-template-columns: 1fr;
    }
    
    .quiz-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .quiz-stat:nth-child(2) {
        border-inline-end: none;
    }
    
    .quiz-info-header {
        flex-direction: column;
        text-align: center;
    }
    
    .result-stats {
        grid-template-columns: 1fr;
    }
    
    .result-stat {
        border-inline-end: none;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .result-stat:last-child {
        border-bottom: none;
    }
    
    .true-false {
        flex-direction: column;
    }
    
    .quiz-nav-dots {
        max-height: 70px;
        overflow-y: auto;
    }
    
    .data-table {
        font-size: 0.85rem;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--space-2) var(--space-3);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--space-3);
    }
    
    .header-content {
        height: 54px;
    }
    
    .error-code {
        font-size: 4rem;
    }
    
    .result-score {
        font-size: 2.5rem;
    }
    
    .dialog {
        max-width: 100%;
        margin: var(--space-2);
    }
    .teacher-stats {
        flex-direction: column;
        gap: var(--space-2);
    }
}

/* ═══════════════════════════════════════════════════════════════
   RTL Overrides (Arabic)
   ═══════════════════════════════════════════════════════════════ */

html[dir="rtl"] .nav-link .icon,
html[dir="rtl"] .btn .icon {
    order: 1;
}

html[dir="rtl"] .nav-link.live::before {
    order: 0;
}

html[dir="rtl"] .quiz-card-title,
html[dir="rtl"] .section-title,
html[dir="rtl"] .hero-title {
    text-align: right;
}

html[dir="rtl"] .form-input {
    text-align: right;
}

html[dir="rtl"] .join-input {
    text-align: center;
}

html[dir="rtl"] .dropdown-menu {
    inset-inline-end: 0;
    inset-inline-start: auto;
}

html[dir="rtl"] .answer-marker {
    font-family: 'Cairo', sans-serif;
}

html[dir="rtl"] .quiz-nav-buttons .btn .icon {
    transform: scaleX(-1);
}

html[dir="rtl"] .data-table th,
html[dir="rtl"] .data-table td {
    text-align: right;
}

html[dir="rtl"] .dialog-header {
    flex-direction: row-reverse;
}

html[dir="rtl"] .teacher-contact-main {
    flex-direction: row-reverse;
}

html[dir="rtl"] .teacher-contact-text {
    text-align: end;
}

html[dir="rtl"] .quiz-teacher-line::after {
    content: 'arrow_back_ios';
    margin-inline-end: auto;
    margin-inline-start: 0;
}

html[dir="rtl"] .auth-section-title,
html[dir="rtl"] .auth-section-subtitle {
    text-align: right;
}

html[dir="rtl"] .auth-body .form-input {
    text-align: right;
}

html[dir="rtl"] .sidebar-title,
html[dir="rtl"] .sidebar-desc {
    text-align: right;
}

html[dir="rtl"] .returning-guest-section {
    text-align: center;
}