/* ============================================
   BEAT EXAM - Complete Exam Preparation Platform
   Modern Blue/Purple/Dark Education Theme
   ============================================ */

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

/* CSS Variables - Color Scheme */
:root {
    /* Primary Colors - Blue/Purple Gradient Theme */
    --primary-blue: #2563eb;
    --primary-purple: #7c3aed;
    --primary-dark: #1e1b4b;
    --primary-light: #6366f1;
    
    /* Secondary Colors */
    --secondary-cyan: #06b6d4;
    --secondary-pink: #ec4899;
    --secondary-orange: #f97316;
    
    /* Background Colors */
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    
    /* Text Colors */
    --text-white: #ffffff;
    --text-light: #e2e8f0;
    --text-muted: #94a3b8;
    --text-dark: #1e293b;
    
    /* Accent Colors */
    --accent-success: #22c55e;
    --accent-warning: #eab308;
    --accent-error: #ef4444;
    --accent-info: #3b82f6;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --gradient-dark: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
    --gradient-card: linear-gradient(145deg, #1e293b 0%, #0f172a 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.3);
    --shadow-glow-purple: 0 0 20px rgba(124, 58, 237, 0.3);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-darker);
    color: var(--text-light);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-white);
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

ul, ol {
    list-style: none;
}

/* Utility Classes */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-center {
    text-align: center;
}

.text-muted {
    color: var(--text-muted);
}

/* ============================================
   NAVBAR STYLES
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
    box-shadow: var(--shadow-lg);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-white);
}

.navbar-brand .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-sm) 0;
    transition: color var(--transition-fast);
}

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

.nav-link i {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link i {
    transform: rotate(180deg);
}

/* Dropdown Styles */
.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xl);
    z-index: 1001;
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-light);
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-card-hover);
    color: var(--primary-blue);
}

/* Navbar Actions */
.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-light);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

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

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-white);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-3xl) 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    color: var(--primary-blue);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-3xl);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

.section-description {
    color: var(--text-muted);
    font-size: 1rem;
}

/* ============================================
   CLASS CATEGORIES
   ============================================ */
.class-categories {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.class-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--gradient-card);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    color: var(--text-light);
    font-family: 'Poppins', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.class-btn:hover,
.class-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   FINDER TOOL
   ============================================ */
.finder-tool {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.finder-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.finder-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    align-items: end;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-select,
.form-input {
    padding: 0.75rem 1rem;
    background: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--text-light);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-select:focus,
.form-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-select option {
    background: var(--bg-card);
    color: var(--text-light);
}

/* ============================================
   TEST CARDS
   ============================================ */
.tests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.test-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.test-card:hover {
    transform: translateY(-5px);
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: var(--shadow-xl);
}

.test-card-image {
    position: relative;
    height: 160px;
    overflow: hidden;
}

.test-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.test-card:hover .test-card-image img {
    transform: scale(1.05);
}

.test-card-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
}

.test-card-content {
    padding: var(--spacing-lg);
}

.test-card-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.test-card-tag {
    font-size: 0.75rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-blue);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.test-card-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-white);
}

.test-card-info {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.test-card-info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.test-card-info-item i {
    color: var(--primary-blue);
}

/* ============================================
   QUIZ PAGE STYLES
   ============================================ */
.quiz-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.quiz-header {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.quiz-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.quiz-title {
    font-size: 1.25rem;
}

.quiz-timer {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-error);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
}

.quiz-timer.warning {
    animation: pulse 1s infinite;
}

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

.quiz-progress {
    height: 8px;
    background: var(--bg-dark);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.quiz-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.quiz-question-container {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.question-number {
    font-size: 0.875rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.question-text {
    font-size: 1.25rem;
    color: var(--text-white);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.options-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.option-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-dark);
    border: 2px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.option-item:hover {
    border-color: rgba(37, 99, 235, 0.3);
    background: rgba(37, 99, 235, 0.05);
}

.option-item.selected {
    border-color: var(--primary-blue);
    background: rgba(37, 99, 235, 0.1);
}

.option-item.correct {
    border-color: var(--accent-success);
    background: rgba(34, 197, 94, 0.1);
}

.option-item.wrong {
    border-color: var(--accent-error);
    background: rgba(239, 68, 68, 0.1);
}

.option-marker {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.option-item.selected .option-marker {
    background: var(--primary-blue);
    color: var(--text-white);
}

.option-item.correct .option-marker {
    background: var(--accent-success);
    color: var(--text-white);
}

.option-item.wrong .option-marker {
    background: var(--accent-error);
    color: var(--text-white);
}

.option-text {
    font-size: 1rem;
    color: var(--text-light);
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.quiz-question-palette {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

.palette-item {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.palette-item:hover {
    border-color: var(--primary-blue);
}

.palette-item.current {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--text-white);
}

.palette-item.answered {
    background: var(--accent-success);
    border-color: var(--accent-success);
    color: var(--text-white);
}

/* ============================================
   RESULT PAGE STYLES
   ============================================ */
.result-container {
    max-width: 700px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.result-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    text-align: center;
}

.result-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-lg);
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.result-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.result-message {
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
}

.result-score-circle {
    width: 180px;
    height: 180px;
    margin: 0 auto var(--spacing-xl);
    position: relative;
}

.result-score-circle svg {
    transform: rotate(-90deg);
}

.result-score-circle-bg {
    fill: none;
    stroke: var(--bg-dark);
    stroke-width: 10;
}

.result-score-circle-progress {
    fill: none;
    stroke: url(#scoreGradient);
    stroke-width: 10;
    stroke-linecap: round;
    stroke-dasharray: 440;
    stroke-dashoffset: 440;
    transition: stroke-dashoffset 1.5s ease;
}

.result-score-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.result-score-number {
    font-family: 'Poppins', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-score-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.result-stat {
    background: var(--bg-dark);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
}

.result-stat-value {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
}

.result-stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.result-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   LEADERBOARD STYLES
   ============================================ */
.leaderboard-container {
    max-width: 900px;
    margin: 0 auto;
}

.leaderboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.leaderboard-title {
    font-size: 1.5rem;
}

.leaderboard-filter {
    display: flex;
    gap: var(--spacing-sm);
}

.leaderboard-table {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.leaderboard-row {
    display: grid;
    grid-template-columns: 80px 1fr 100px 120px;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background var(--transition-fast);
}

.leaderboard-row:hover {
    background: rgba(255, 255, 255, 0.02);
}

.leaderboard-row.header {
    background: rgba(37, 99, 235, 0.1);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.leaderboard-rank {
    font-family: 'Poppins', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
}

.leaderboard-rank.top-1 {
    color: #ffd700;
}

.leaderboard-rank.top-2 {
    color: #c0c0c0;
}

.leaderboard-rank.top-3 {
    color: #cd7f32;
}

.leaderboard-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.leaderboard-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.leaderboard-name {
    font-weight: 600;
}

.leaderboard-class {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.leaderboard-score {
    font-family: 'Poppins', sans-serif;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-blue);
    text-align: right;
}

/* ============================================
   DASHBOARD STYLES
   ============================================ */
.dashboard-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-xl);
    min-height: calc(100vh - 70px);
    padding-top: 70px;
}

.dashboard-sidebar {
    background: var(--gradient-card);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--spacing-xl);
}

.dashboard-user {
    text-align: center;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: var(--spacing-lg);
}

.dashboard-avatar {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
}

.dashboard-user-name {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.dashboard-user-email {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.dashboard-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.dashboard-nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    color: var(--text-light);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.dashboard-nav-item:hover,
.dashboard-nav-item.active {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-blue);
}

.dashboard-nav-item i {
    width: 20px;
    text-align: center;
}

.dashboard-main {
    padding: var(--spacing-xl);
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.dashboard-stat-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
}

.dashboard-stat-icon {
    width: 50px;
    height: 50px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.dashboard-stat-value {
    font-family: 'Poppins', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--spacing-xs);
}

.dashboard-stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.dashboard-section {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.dashboard-section-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   AUTH PAGES (LOGIN/SIGNUP)
   ============================================ */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
}

.auth-container {
    width: 100%;
    max-width: 450px;
}

.auth-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
}

.auth-logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 1.75rem;
}

.auth-logo-text {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
}

.auth-title {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.auth-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.auth-input-group {
    position: relative;
}

.auth-input-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.auth-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    background: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--text-light);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.auth-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.auth-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.auth-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-muted);
    cursor: pointer;
}

.auth-checkbox input {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-blue);
}

.auth-link {
    color: var(--primary-blue);
    font-weight: 500;
}

.auth-link:hover {
    text-decoration: underline;
}

.auth-btn {
    width: 100%;
    padding: 0.875rem;
    background: var(--gradient-primary);
    color: var(--text-white);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ============================================
   FOOTER STYLES
   ============================================ */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.footer-social-link:hover {
    background: var(--primary-blue);
    color: var(--text-white);
}

.footer-title {
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-white);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-link {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

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

.footer-legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-legal-link {
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.footer-legal-link:hover {
    color: var(--primary-blue);
}

/* ============================================
   CONTENT PAGES (ABOUT, CONTACT, ETC.)
   ============================================ */
.content-page {
    padding-top: 100px;
    min-height: 100vh;
}

.content-header {
    background: var(--gradient-card);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-2xl);
}

.content-title {
    font-size: 2rem;
}

.content-body {
    max-width: 800px;
    margin: 0 auto;
}

.content-section {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.content-section h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.content-section p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.content-section ul {
    list-style: disc;
    padding-left: var(--spacing-lg);
    color: var(--text-muted);
}

.content-section li {
    margin-bottom: var(--spacing-sm);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.contact-textarea {
    min-height: 150px;
    resize: vertical;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

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

.slide-in {
    animation: slideIn 0.5s ease forwards;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-sidebar {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .navbar-nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-dark);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .navbar-nav.active {
        display: flex;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .dropdown {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        display: none;
        box-shadow: none;
        margin-top: var(--spacing-sm);
    }
    
    .nav-item.active .dropdown {
        display: block;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-stats {
        gap: var(--spacing-xl);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .finder-form {
        grid-template-columns: 1fr;
    }
    
    .tests-grid {
        grid-template-columns: 1fr;
    }
    
    .quiz-navigation {
        flex-direction: column;
    }
    
    .result-stats {
        grid-template-columns: 1fr;
    }
    
    .leaderboard-row {
        grid-template-columns: 50px 1fr 80px;
    }
    
    .leaderboard-row .leaderboard-class {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .class-btn {
        width: 60px;
        height: 60px;
        font-size: 1rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
    }
    
    .auth-card {
        padding: var(--spacing-lg);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.hidden {
    display: none !important;
}

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

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-card-hover);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue);
}