/* Reset ve Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - Light Theme Only */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* 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;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

a:hover {
    color: var(--primary-dark);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
    white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: white;
}

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #475569;
    border-color: #475569;
    color: white;
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--bg-secondary);
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
    border-color: #dc2626;
    color: white;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
}

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo img {
    width: 200px;
    height: 80px;
    object-fit: contain;
}

/* Logo h1 style removed - no longer using text logo */

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

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .logo img {
        width: 160px;
        height: 60px;
        object-fit: contain;
    }
}

/* Main Content */
.main {
    min-height: calc(100vh - 200px);
    padding: var(--spacing-xl) 0;
}

.page-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.page-header h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.page-header p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    background: 
        linear-gradient(135deg, rgba(37, 99, 235, 0.8) 0%, rgba(29, 78, 216, 0.8) 100%),
        url('/assets/img/1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    padding: var(--spacing-3xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content h2,
.hero-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    color: white;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero Buttons */
.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-3xl);
}

.btn-hero {
    padding: 16px 32px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: all var(--transition-normal);
    min-width: 220px;
    justify-content: center;
    border: none;
    cursor: pointer;
}

.btn-hero.btn-primary {
    background-color: #1e40af;
    color: white;
}

.btn-hero.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
}

.btn-hero.btn-outline {
    background-color: white;
    border: 2px solid #1e40af;
    color: #1e40af;
}

.btn-hero.btn-outline:hover {
    background-color: #f8fafc;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.2);
}

.btn-hero.btn-warning {
    background-color: #fbbf24;
    color: #1e293b;
}

.btn-hero.btn-warning:hover {
    background-color: #f59e0b;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(251, 191, 36, 0.3);
}

.btn-icon {
    font-size: 20px;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

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

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background-color: #f8fafc;
}

.cta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.cta-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.cta-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.cta-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.cta-card p {
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
}

/* Success Stories */
.success-stories {
    padding: var(--spacing-3xl) 0;
    background-color: #f8fafc;
}

.success-stories .container {
    text-align: center;
}

.success-stories h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.success-stories h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    margin: var(--spacing-md) auto;
    border-radius: var(--radius-sm);
}

.success-stories .subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.stories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.story-card {
    background-color: #ffffff;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: left;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.story-rating {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.star {
    width: 20px;
    height: 20px;
    color: #fbbf24;
    font-size: 20px;
}

.star.half {
    background: linear-gradient(90deg, #fbbf24 50%, #e5e7eb 50%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.story-content {
    margin-bottom: var(--spacing-lg);
}

.story-content p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    margin: 0;
    font-style: normal;
}

.story-author {
    font-weight: 600;
    color: var(--primary-color);
    font-size: var(--font-size-sm);
}

/* Blog Preview */
.blog-preview {
    padding: var(--spacing-3xl) 0;
    background-color: #f8fafc;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.blog-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-normal);
}

.blog-card:hover {
    box-shadow: var(--shadow-md);
}

.blog-card h3 {
    margin-bottom: var(--spacing-md);
}

.blog-card h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

.blog-card h3 a:hover {
    color: var(--primary-color);
}

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

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3,
.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: #94a3b8;
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
}

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

.footer-section ul li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: var(--spacing-xl);
    text-align: center;
    color: #94a3b8;
}

/* Quiz Interface Styles */
.quiz-interface {
    min-height: 100vh;
    background-color: #ffffff;
}

.quiz-header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 50;
}

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

.quiz-info h1 {
    font-size: var(--font-size-xl);
    margin: 0;
    color: var(--text-primary);
}

.quiz-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.quiz-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.timer {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background-color: var(--warning-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
}

.progress {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.progress-text {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.progress-bar {
    width: 100px;
    height: 8px;
    background-color: var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--success-color);
    transition: width var(--transition-normal);
}

@media (max-width: 768px) {
    .quiz-header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .quiz-controls {
        width: 100%;
        justify-content: space-between;
    }
}

/* Question Card */
.question-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
}

.question-header {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.question-header h2 {
    margin: 0;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
}

.question-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.question-meta span {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.question-content {
    padding: var(--spacing-2xl);
}

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

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

.question-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

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

.option-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    background-color: var(--bg-primary);
    min-height: 100px;
    overflow: hidden;
}

.option-item:hover {
    border-color: var(--primary-color);
    background-color: var(--bg-secondary);
}

.option-item.selected {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
}

.option-item.correct {
    border-color: var(--success-color);
    background-color: rgba(16, 185, 129, 0.05);
}

.option-item.incorrect {
    border-color: var(--danger-color);
    background-color: rgba(239, 68, 68, 0.05);
}

.option-radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
}

.option-item.selected .option-radio {
    border-color: var(--primary-color);
}

.option-item.selected .option-radio::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.option-letter {
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 24px;
}

.option-text {
    flex: 0 0 200px;
    color: var(--text-primary);
    max-width: 200px;
    line-height: 1.5;
}

.option-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

/* İnce ve silik klavye ipucu */
.keyboard-hint {
    margin-left: 12px;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 400;
    opacity: 0.7;
    position: absolute;
    right: var(--spacing-lg);
    top: var(--spacing-lg);
}

@media (max-width: 768px) {
    .keyboard-hint {
        display: none;
    }
}

/* Quiz Navigation */
.quiz-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
}

.nav-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.question-jumper,
.question-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Side navigation buttons for quiz */
.quiz-side-nav {
    position: fixed;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    pointer-events: none;
    z-index: 120;
}

.quiz-side-nav .side-btn {
    position: absolute;
    pointer-events: auto;
    background-color: #6b7280;
    color: #fff;
    border: none;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.quiz-side-nav .side-btn.prev { left: 55px; }
.quiz-side-nav .side-btn.next { right: 55px; }

@media (max-width: 768px) {
    .quiz-side-nav {
        top: auto;
        bottom: 0;
        transform: none;
        background: rgba(255,255,255,0.96);
        border-top: 1px solid var(--border-color);
        padding: 10px;
        display: flex;
        gap: 8px;
        align-items: center;
        justify-content: space-between;
        pointer-events: auto;
        z-index: 300;
    }
    .quiz-side-nav .side-btn,
    .quiz-side-nav .side-subbtn {
        position: static;
        padding: 10px 12px;
        flex: 1;
    }
    .quiz-side-nav .side-subbtn {
        background: transparent;
        border-color: var(--border-color);
    }
}

/* Side sub buttons under main side buttons */
.quiz-side-nav .side-subbtn {
    position: absolute;
    pointer-events: auto;
    margin-top: 8px;
}
.quiz-side-nav .side-subbtn.prev { left: 55px; top: calc(50% + 24px + 1.5cm); transform: translateY(0); }
.quiz-side-nav .side-subbtn.next { right: 55px; top: calc(50% + 24px + 1.5cm); transform: translateY(0); }

/* Tam ekran reklam örtüsü */
#fullscreen-ad-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 4000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
}
#fullscreen-ad-box {
    background: #fff;
    width: 100%;
    max-width: 420px;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    padding: 12px;
}
#fullscreen-ad-close {
    position: absolute;
    top: 10px;
    right: 16px;
    background: transparent;
    border: none;
    color: #111827;
    font-size: 22px;
    cursor: pointer;
}

@media (max-width: 768px) {
    .quiz-navigation {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav-buttons,
    .question-jumper,
    .question-actions {
        width: 100%;
        justify-content: center;
    }
}

/* Question List (Quick Navigation) */
.question-list {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.question-list-content {
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
}

.question-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.question-list-header h3 {
    margin: 0;
}

.close-list-btn {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--text-secondary);
    padding: var(--spacing-sm);
}

.question-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: var(--spacing-sm);
}

.question-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.question-number:hover {
    border-color: var(--primary-color);
    background-color: var(--bg-secondary);
}

.question-number.answered {
    background-color: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.question-number.current {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Result Screen */
.result-screen {
    min-height: 100vh;
    background-color: #ffffff;
    padding: var(--spacing-3xl) 0;
}

.result-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.result-header h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
}

.score-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--success-color), var(--primary-color));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-2xl);
    color: white;
    box-shadow: var(--shadow-xl);
}

.score-circle #total-score {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    line-height: 1;
}

.score-label {
    font-size: var(--font-size-lg);
    opacity: 0.9;
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.result-stats .stat-item {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.result-stats .stat-value {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.result-stats .stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.category-breakdown {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-2xl);
}

.category-breakdown h3 {
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.category-item:last-child {
    border-bottom: none;
}

.category-name {
    font-weight: 500;
    color: var(--text-primary);
}

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

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

@media (max-width: 768px) {
    .result-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .result-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Review Screen */
.review-screen {
    min-height: 100vh;
    background-color: #ffffff;
    padding: var(--spacing-3xl) 0;
}

.review-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-2xl);
}

.review-filters {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    justify-content: center;
}

.review-questions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.review-question {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.review-question-header {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.review-question-content {
    padding: var(--spacing-xl);
}

.review-answer {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: #f8fafc;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--success-color);
}

.review-answer h4 {
    color: var(--success-color);
    margin-bottom: var(--spacing-sm);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

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

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Error Screen */
.error-screen {
    min-height: 100vh;
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.error-content {
    text-align: center;
    max-width: 500px;
}

.error-content h2 {
    color: var(--danger-color);
    margin-bottom: var(--spacing-lg);
}

.error-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

/* Year/Month/Day Selection */
.year-selection,
.month-selection,
.day-selection {
    margin-bottom: var(--spacing-3xl);
}

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

.year-tab {
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 600;
}

.year-tab:hover {
    border-color: var(--primary-color);
    background-color: var(--bg-secondary);
}

.year-tab.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

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

.month-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.month-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.month-card.active {
    background-color: var(--primary-color);
    color: white;
}

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

.day-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.day-info h3 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
}

.day-info p {
    margin: 0;
    color: var(--text-secondary);
}

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

/* Topic Categories */
.topic-categories {
    margin-bottom: var(--spacing-3xl);
}

.topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.topic-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.topic-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.topic-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.topic-stats {
    background-color: #f8fafc;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
    color: var(--primary-color);
}

.topic-card p {
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
}

/* Test List */
.test-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-2xl);
}

.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.test-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-normal);
}

.test-card:hover {
    box-shadow: var(--shadow-md);
}

.test-info h3 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
}

.test-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: var(--spacing-sm) 0 var(--spacing-lg) 0;
}

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

/* About Page */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-section {
    margin-bottom: var(--spacing-3xl);
}

.about-section h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.feature-item {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

.feature-item h3 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.content-types {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.content-type {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.content-type h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.tech-item {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.contact-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* Contact Page */
.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-form-section h2,
.contact-info-section h2 {
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast);
    background-color: var(--bg-primary);
}

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

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.success-message {
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    text-align: center;
}

.success-message h3 {
    color: var(--success-color);
    margin-bottom: var(--spacing-md);
}

/* Contact Info */
.contact-info {
    margin-bottom: var(--spacing-2xl);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.info-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.info-content h3 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
}

.info-content p {
    margin: 0;
    color: var(--text-secondary);
}

/* FAQ */
.faq-section {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.faq-section h3 {
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

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

.faq-item h4 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

.faq-item p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Blog Content */
.blog-content {
    max-width: 800px;
    margin: 0 auto;
}

.blog-post {
    background-color: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-3xl);
}

.blog-post h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.post-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.post-category {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.post-content h3 {
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.post-content ol,
.post-content ul {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.post-content li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.post-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .hero-content h2 {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .btn-hero {
        width: 100%;
        max-width: 300px;
        min-width: auto;
    }
    
    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .cta-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .topic-grid {
        grid-template-columns: 1fr;
    }
    
    .test-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .month-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .question-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .day-card {
        flex-direction: column;
        text-align: center;
    }
    
    .stories-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .success-stories h2 {
        font-size: var(--font-size-2xl);
    }
    
    .success-stories .subtitle {
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-content h2 {
        font-size: var(--font-size-2xl);
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .month-grid {
        grid-template-columns: 1fr;
    }
    
    .question-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .score-circle {
        width: 150px;
        height: 150px;
    }
    
    .score-circle #total-score {
        font-size: var(--font-size-3xl);
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .quiz-header,
    .quiz-navigation,
    .result-actions,
    .review-header,
    .review-filters {
        display: none !important;
    }
    
    .main {
        padding: 0;
    }
    
    .question-card,
    .result-content,
    .review-question {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .quiz-interface,
    .result-screen,
    .review-screen {
        background-color: white;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles */
.btn:focus,
input:focus,
select:focus,
textarea:focus,
.option-item:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.option-image {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex: 1;
    min-width: 0;
    min-height: 100px;
    padding: var(--spacing-xs);
}

.option-image img {
    max-width: 150px;
    max-height: 100px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    object-fit: contain;
    display: block;
    margin: 0;
}

/* Mobile adjustments for option images/text to prevent overflow */
@media (max-width: 768px) {
    .option-text {
        max-width: none;
        flex: 1;
        word-break: break-word;
    }
    .option-image {
        flex: 0 0 38%;
        min-height: 80px;
        padding: var(--spacing-xs);
    }
    .option-image img {
        max-width: 100%;
        max-height: 80px;
        height: auto;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-secondary: #000000;
        --bg-secondary: #ffffff;
    }
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: var(--spacing-xl);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.breadcrumb-item:not(:last-child)::after {
    content: '›';
    color: var(--text-muted);
    font-weight: bold;
}

.breadcrumb-item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--primary-color);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

/* Light Mode Only - Dark Mode Disabled */

/* Index.html specific styles */
:root {
    --primary-color: #1e40af;
    --primary-dark: #1e3a8a;
    --secondary-color: #06b6d4;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', 'Segoe UI', 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.navbar {
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    background-color: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    background-color: rgba(255, 255, 255, 0.98) !important;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
    text-decoration: none;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    color: var(--primary-dark) !important;
    transform: translateY(-1px);
}

.nav-link {
    font-weight: 500;
    margin: 0 10px;
    padding: 10px 5px !important;
    position: relative;
}

.nav-link:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s;
}

.nav-link:hover:after {
    width: 100%;
}

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 6rem 0;
    margin-bottom: 3rem;
    position: relative;
    overflow: hidden;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("../img/1.png");
    background-size: cover;
    opacity: 0.1;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.hero p.lead {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-weight: 400;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
    padding: 0.875rem 2rem;
    font-weight: 600;
    letter-spacing: 0.025em;
    border-radius: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-primary:active {
    transform: translateY(0);
}

.card {
    border: none;
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    background: white;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-img-top {
    height: 200px;
    object-fit: cover;
}

.card-body {
    padding: 25px;
}

.card-title {
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.card-text {
    color: #6c757d;
}

.year-btn {
    padding: 15px 20px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1.2rem;
    margin: 10px;
    min-width: 200px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.25s cubic-bezier(.4,2,.3,1);
}

.year-btn:hover {
    transform: scale(1.06) translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.18);
    filter: brightness(1.08);
}

.btn-2023 {
    background-color: #28a745;
    border-color: #28a745;
    color: white;
}

.btn-2024 {
    background-color: #007bff;
    border-color: #007bff;
    color: white;
}

.btn-2025 {
    background-color: #ffc107;
    border-color: #ffc107;
    color: #343a40;
}

.feature-box {
    background: white;
    padding: 2.5rem;
    border-radius: 1.25rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

.feature-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-box:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.feature-box:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    color: var(--secondary-color);
}

.counter-box {
    background: linear-gradient(135deg, white, var(--gray-50));
    padding: 2.5rem;
    border-radius: 1.25rem;
    box-shadow: var(--shadow-md);
    text-align: center;
    margin-bottom: 2rem;
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.counter-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

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

.counter {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.counter-title {
    font-size: 1rem;
    color: var(--gray-600);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.2;
    word-wrap: break-word;
    hyphens: auto;
}

.testimonial {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    margin-bottom: 30px;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-color);
}

.testimonial-rating {
    color: #ffc107;
    margin-bottom: 15px;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--gray-800);
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 1.5rem auto 0;
    border-radius: 2px;
}

.section-title::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(30, 64, 175, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
}

.section-padding {
    padding: 5rem 0;
}

@media (max-width: 768px) {
    .section-padding {
        padding: 3rem 0;
    }
}

.bg-light-custom {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

.bg-primary-custom {
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
}

footer {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: white;
    padding: 4rem 0 2rem;
    position: relative;
    overflow: hidden;
}

footer p {
    color: rgba(255, 255, 255, 0.8) !important;
}

footer .footer-title {
    color: var(--accent-color) !important;
}

footer .copyright {
    color: rgba(255, 255, 255, 0.8) !important;
}

footer .copyright p {
    color: rgba(255, 255, 255, 0.8) !important;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.footer-title {
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
    font-size: 1.25rem;
    position: relative;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
}

/* Footer başlık altı çizgi hizaları (sütuna göre) */
footer .align-items-center .footer-title::after {
    left: 50%;
    transform: translateX(-50%);
}

footer .text-md-end .footer-title::after {
    left: auto;
    right: 0;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    padding: 0.25rem 0;
}

.footer-links a:hover {
    color: var(--accent-color);
    transform: translateX(8px);
}

.social-icons {
    font-size: 1.5rem;
}

.social-icons a {
    color: white;
    margin-right: 15px;
    transition: all 0.3s;
}

.social-icons a:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}

.copyright {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.btn-floating {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-lg);
    z-index: 99;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
}

.btn-floating:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-floating:active {
    transform: translateY(-2px) scale(1.02);
}

.accordion-button:not(.collapsed) {
    background-color: #e7f1ff;
    color: var(--primary-color);
}

.accordion-button:focus {
    box-shadow: none;
    border-color: rgba(0,0,0,.125);
}

.faq-title {
    color: var(--primary-color);
    font-weight: 700;
}

/* Legal/Info pages shared styles */
.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.content-section {
    background-color: var(--bg-primary);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    margin-bottom: 30px;
}

.content-section h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.content-section h3 {
    color: var(--secondary-color);
    margin: 25px 0 15px;
    font-size: 1.4rem;
}

.terms-date {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .hero {
        padding: 4rem 0;
        min-height: 70vh;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p.lead {
        font-size: 1.1rem;
    }
    
    .feature-box {
        padding: 2rem;
    }
    
    .counter-box {
        padding: 2rem;
    }
}

.card-img-overlay-custom {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 200px;
    background: rgba(0,0,0,0.35);
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    transition: background 0.3s;
    z-index: 1;
}

.card:hover .card-img-overlay-custom {
    background: rgba(0,0,0,0.18);
}

.card-img-top {
    position: relative;
    z-index: 0;
}

.card-img-box {
    position: relative;
}

.card-body {
    position: relative;
    z-index: 2;
}

@media (max-width: 768px) {
    footer .row {
        text-align: center !important;
        justify-content: center !important;
    }
    footer .col-md-4 {
        text-align: center !important;
        justify-content: center !important;
        align-items: center !important;
        margin-bottom: 30px;
    }
    footer .footer-links {
        text-align: center !important;
    }
}

@media (max-width: 768px) {
    #hero-buttons-row {
        flex-direction: column !important;
        align-items: center !important;
    }
    #hero-buttons-row a {
        width: 100% !important;
        max-width: 350px;
        margin-right: 0 !important;
    }
}

.btn-warning#bugununSinaviBtn {
    min-width: 270px;
    font-size: 1.3rem;
    border: 2px solid #0056b3;
    padding: 18px 0 !important;
    height: 60px;
    margin-top: 8px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.10);
}

#hero-buttons-row a {
    margin-bottom: 10px !important;
}

@media (max-width: 768px) {
    .btn-warning#bugununSinaviBtn {
        width: 100% !important;
        max-width: 350px;
        font-size: 1.15rem;
        margin-top: 8px;
    }
    #hero-buttons-row a {
        margin-bottom: 10px !important;
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 6px 18px rgba(0,0,0,0.10);
    }
    50% {
        transform: scale(1.07);
        box-shadow: 0 12px 24px rgba(0,0,0,0.13);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 6px 18px rgba(0,0,0,0.10);
    }
}

#bugununSinaviBtn {
    animation: pulse 1.6s infinite;
}

/* Question Preamble Styles */
.question-preamble {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
    font-weight: 700;
    line-height: 1.6;
    color: var(--text-primary);
}

.question-preamble p {
    margin: 0;
    margin-bottom: var(--spacing-sm);
}

.question-preamble p:last-child {
    margin-bottom: 0;
}

.question-preamble strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Mobile responsive for preamble */
@media (max-width: 768px) {
    .question-preamble {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
        font-size: var(--font-size-base);
    }
}

/* Compact scale for quiz pages (desktop only) */
.quiz-scale-95 {
    transform: scale(0.92);
    transform-origin: top center;
}

@media (max-width: 768px) {
    .quiz-scale-95 {
        transform: none;
    }
}