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

:root {
    /* Dark Theme Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #0f172a;
    --accent-color: #f59e0b;
    --accent-pink: #ec4899;
    --accent-purple: #8b5cf6;
    --accent-cyan: #06b6d4;
    
    /* Text Colors */
    --text-color: #f1f5f9;
    --text-light: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Background Colors */
    --bg-dark: #0a0e1a;
    --bg-darker: #050812;
    --bg-card: #1e293b;
    --bg-card-hover: #273549;
    --bg-gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --bg-gradient-2: linear-gradient(135deg, #ec4899 0%, #f59e0b 100%);
    --bg-gradient-3: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --bg-gradient-4: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
    --bg-gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    
    /* Border & Shadow */
    --border-color: #334155;
    --border-light: #475569;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    overflow-x: hidden;
    background: var(--bg-dark);
    min-height: 100vh;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.logo a {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--bg-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-list a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s;
    position: relative;
    padding: 0.5rem 0;
}

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

.nav-list a:hover::after,
.nav-list a.active::after {
    width: 100%;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--primary-light);
}

.header-buttons {
    display: flex;
    gap: 1rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    gap: 5px;
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Buttons */
.btn {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--bg-gradient-1);
    color: white;
    box-shadow: var(--shadow-md);
}

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

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 95vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-gradient-hero);
    color: white;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/9.jpeg') center/cover;
    filter: blur(8px);
    opacity: 0.3;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.7);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    padding: 3rem 2rem;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.hero-text {
    text-align: left;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 1.5rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    color: white;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    margin-bottom: 2.5rem;
    opacity: 0.9;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-light);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    z-index: 2;
    font-size: 0.875rem;
    font-weight: 500;
}

.scroll-arrow {
    width: 2px;
    height: 40px;
    background: white;
    margin: 12px auto;
    border-radius: 2px;
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(15px); opacity: 0.5; }
}

/* Animations */
.fade-in {
    animation: fadeIn 1s ease-in;
}

.fade-in-delay {
    animation: fadeIn 1s ease-in 0.3s both;
}

.fade-in-delay-2 {
    animation: fadeIn 1s ease-in 0.6s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Sections */
section {
    padding: 6rem 0;
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: var(--bg-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about {
    background: var(--bg-darker);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.about-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-size: 1.125rem;
    line-height: 1.8;
}

.about-text h3 {
    font-size: 2rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-weight: 800;
}

/* Mini Sudoku Game */
.mini-game-container,
.demo-game-container {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.mini-game-container h3,
.demo-game-container h3 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.mini-sudoku {
    max-width: 400px;
    margin: 0 auto;
}

.sudoku-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3px;
    background: var(--bg-darker);
    border: 3px solid var(--border-color);
    margin-bottom: 1.5rem;
    border-radius: 8px;
    overflow: hidden;
}

.sudoku-cell {
    background: var(--bg-card);
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-color);
}

.sudoku-cell:hover {
    background: var(--bg-card-hover);
    transform: scale(1.05);
}

.sudoku-cell.filled {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
    cursor: default;
    color: var(--primary-light);
}

.sudoku-cell.selected {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.3) 0%, rgba(139, 92, 246, 0.3) 100%);
}

.sudoku-cell input {
    width: 100%;
    height: 100%;
    border: none;
    text-align: center;
    font-size: 1.3rem;
    font-weight: 700;
    background: transparent;
    color: var(--text-color);
}

.sudoku-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.sudoku-message {
    text-align: center;
    min-height: 28px;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-light);
}

.sudoku-message.success {
    color: #10b981;
}

.sudoku-message.error {
    color: #ef4444;
}

/* Benefits Section */
.benefits {
    background: var(--bg-dark);
    position: relative;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.benefit-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--bg-gradient-1);
    transform: scaleX(0);
    transition: transform 0.4s;
}

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

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    border-color: var(--primary-color);
}

.benefit-icon {
    display: none;
}

.benefit-card h3 {
    margin-bottom: 1rem;
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.benefit-card p {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 1rem;
}

.benefit-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    transition: transform 0.3s;
}

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

/* Registration CTA */
.registration-cta {
    background: var(--bg-gradient-1);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.registration-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

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

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
    font-weight: 800;
}

.cta-content > p {
    font-size: 1.375rem;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.cta-description {
    margin-top: 2.5rem;
    font-size: 1.125rem;
    opacity: 0.9;
}

.cta-benefits {
    list-style: none;
    margin: 2.5rem 0;
    text-align: left;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.cta-benefits li {
    padding: 0.75rem 0;
    padding-left: 2.5rem;
    position: relative;
    font-size: 1.125rem;
}

.cta-benefits li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
    font-size: 1.5rem;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

/* Testimonials */
.testimonials {
    background: var(--bg-darker);
}

.testimonials-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    min-height: 250px;
}

.testimonial-slide {
    display: none;
    text-align: center;
    padding: 3rem 2rem;
}

.testimonial-slide.active {
    display: block;
    animation: fadeIn 0.5s;
}

.testimonial-text {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--text-color);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-weight: 400;
}

.testimonial-author {
    font-weight: 700;
    color: var(--primary-light);
    font-size: 1.125rem;
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.testimonial-prev,
.testimonial-next {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
}

.testimonial-prev:hover,
.testimonial-next:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.testimonial-dots {
    display: flex;
    gap: 0.75rem;
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg-card);
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid var(--border-color);
}

.dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
    border-color: var(--primary-color);
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: 4rem 0 1.5rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-section p {
    margin-bottom: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.social-icons {
    display: flex;
    gap: 1.25rem;
}

.social-icon {
    font-size: 2rem;
    text-decoration: none;
    position: relative;
    transition: all 0.3s;
    display: inline-block;
}

.social-icon:hover {
    transform: translateY(-5px) scale(1.15);
}

.social-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    margin-bottom: 8px;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
}

.social-icon:hover .social-tooltip {
    opacity: 1;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.footer-links a:hover {
    color: white;
    transform: translateX(5px);
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.newsletter-form input {
    padding: 0.875rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.15);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    max-width: 1200px;
    margin: 0 auto;
}

/* Cookie Popup */
.cookie-popup {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    z-index: 10000;
    max-width: 550px;
    display: none;
    border: 1px solid var(--border-color);
}

.cookie-popup.show {
    display: block;
    animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.cookie-content p {
    margin-bottom: 1.5rem;
    color: var(--text-color);
    line-height: 1.7;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

/* Page Hero (removed from other pages) */
.page-hero {
    background: var(--bg-gradient-hero);
    color: white;
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.15), transparent 70%);
    z-index: 1;
}

.page-hero .container {
    position: relative;
    z-index: 2;
}

.page-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: 1rem;
    font-weight: 800;
}

.page-subtitle {
    font-size: 1.375rem;
    opacity: 0.9;
    color: var(--text-light);
}

/* Early Access Page */
.early-access-info {
    background: var(--bg-darker);
    padding: 4rem 0;
}

.info-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.info-content h2 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.info-content h3 {
    font-size: 1.75rem;
    color: var(--primary-light);
    margin: 2.5rem 0 1rem;
    font-weight: 700;
}

.info-content p {
    color: var(--text-light);
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.benefits-list {
    margin: 2rem 0;
    padding-left: 0;
    list-style: none;
    text-align: left;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.benefits-list li {
    margin-bottom: 1rem;
    color: var(--text-light);
    padding-left: 2rem;
    position: relative;
    font-size: 1.125rem;
    line-height: 1.7;
}

.benefits-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.25rem;
}

/* Image Slider */
.image-slider-section {
    background: var(--bg-dark);
    padding: 4rem 0;
}

.image-slider {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.slider-container {
    position: relative;
    height: 500px;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.slider-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
}

.slider-slide.active {
    opacity: 1;
}

.slider-image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--bg-gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.75rem;
    font-weight: 600;
}

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.slider-prev,
.slider-next {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
}

.slider-prev:hover,
.slider-next:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* Forms */
.registration-form-section,
.contact-form-section {
    background: var(--bg-darker);
    padding: 4rem 0;
}

.registration-form,
.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.75rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--text-color);
    font-weight: 600;
    font-size: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s;
    background: var(--bg-dark);
    color: var(--text-color);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-darker);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

/* Contact Page */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.contact-item {
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.contact-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.contact-item h3 {
    color: var(--primary-light);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.contact-item p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.0625rem;
}

/* Google Map */
.map-section {
    background: var(--bg-dark);
    padding: 4rem 0;
}

.google-map,
.map-iframe {
    width: 100%;
    height: 450px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    max-width: 1200px;
    margin: 0 auto;
    display: block;
}

/* Features Page */
.features-description {
    background: var(--bg-darker);
    padding: 4rem 0;
}

.features-intro {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.features-intro p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-size: 1.25rem;
    line-height: 1.8;
}

.features-accordion {
    background: var(--bg-dark);
    padding: 4rem 0;
}

.accordion {
    max-width: 1000px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--bg-card);
    margin-bottom: 1.25rem;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.accordion-item:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.accordion-header {
    width: 100%;
    padding: 2rem;
    background: var(--bg-card);
    border: none;
    text-align: left;
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
}

.accordion-header:hover {
    background: var(--bg-card-hover);
}

.accordion-icon {
    font-size: 1.75rem;
    color: var(--primary-color);
    transition: transform 0.3s;
    font-weight: 300;
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    padding: 0 2rem;
}

.accordion-item.active .accordion-content {
    max-height: 800px;
    padding: 0 2rem 2rem;
}

.accordion-content p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.0625rem;
}

/* Infographics */
.infographics {
    background: var(--bg-darker);
    padding: 4rem 0;
}

.infographics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.infographic-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.infographic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.infographic-number {
    font-size: 3.5rem;
    font-weight: 900;
    background: var(--bg-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.75rem;
    line-height: 1;
}

.infographic-label {
    color: var(--text-light);
    font-size: 1.0625rem;
    font-weight: 600;
}

/* Inspiring Stories */
.inspiring-stories {
    background: var(--bg-dark);
    padding: 4rem 0;
}

.stories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.story-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.story-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.story-card h3 {
    color: var(--text-color);
    margin-bottom: 1.25rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.story-card p {
    color: var(--text-light);
    margin-bottom: 1.25rem;
    line-height: 1.8;
    font-size: 1.0625rem;
}

.story-author {
    font-weight: 700;
    color: var(--primary-light);
    font-style: italic;
    font-size: 1.0625rem;
}

/* Research Page */
.research-info {
    background: var(--bg-darker);
    padding: 4rem 0;
}

.research-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.research-content p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-size: 1.125rem;
    line-height: 1.8;
}

.research-content h3 {
    color: var(--text-color);
    margin: 2.5rem 0 1.25rem;
    font-size: 2rem;
    font-weight: 800;
}

.research-methods,
.research-domains {
    margin: 2rem 0;
    padding-left: 0;
    list-style: none;
    text-align: left;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.research-methods li,
.research-domains li {
    margin-bottom: 1.25rem;
    color: var(--text-light);
    line-height: 1.8;
    padding-left: 2rem;
    position: relative;
    font-size: 1.0625rem;
}

.research-methods li::before,
.research-domains li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.5rem;
    line-height: 1;
}

.research-charts {
    background: var(--bg-dark);
    padding: 4rem 0;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.chart-container {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.chart-container:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.chart-container h3 {
    color: var(--text-color);
    margin-bottom: 2rem;
    font-size: 1.375rem;
    font-weight: 700;
}

.chart-bar {
    width: 100%;
    height: 40px;
    background: var(--bg-dark);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 1.25rem;
    border: 1px solid var(--border-color);
}

.chart-bar-fill {
    height: 100%;
    background: var(--bg-gradient-1);
    border-radius: 20px;
    transition: width 1.5s ease-out;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 1rem;
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
}


.researcher-testimonials {
    background: var(--bg-darker);
    padding: 4rem 0;
}

.researcher-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.researcher-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.researcher-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.researcher-info h3 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.researcher-title {
    color: var(--text-light);
    font-size: 1rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.researcher-quote {
    color: var(--text-light);
    font-style: italic;
    line-height: 1.8;
    font-size: 1.0625rem;
}

.research-methods-details {
    background: var(--bg-dark);
    padding: 4rem 0;
}

.methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.method-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.method-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.method-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    transition: transform 0.3s;
}

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

.method-card h3 {
    color: var(--text-color);
    margin-bottom: 1.25rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.method-card p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.0625rem;
}

/* Thank You Page */
.thank-you-section {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-dark);
    position: relative;
}

.thank-you-content {
    text-align: center;
    max-width: 700px;
    padding: 4rem 3rem;
    background: var(--bg-card);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    margin: 0 auto;
}

.thank-you-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    margin: 0 auto 2rem;
    box-shadow: var(--shadow-lg);
}

.thank-you-content h1 {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-size: 2.75rem;
    font-weight: 800;
}

.thank-you-message {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 1.25rem;
    font-weight: 600;
}

.thank-you-instructions {
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    font-size: 1.125rem;
}

.thank-you-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Game Demo Section */
.game-demo {
    background: var(--bg-darker);
    padding: 4rem 0;
}

/* Legal Documents Modals */
.legal-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    overflow-y: auto;
}

.legal-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    border-radius: 20px;
    max-width: 950px;
    width: 90%;
    max-height: 90vh;
    margin: 2rem auto;
    box-shadow: var(--shadow-xl);
    overflow-y: auto;
    z-index: 10001;
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--bg-dark);
    border: none;
    font-size: 2rem;
    color: var(--text-color);
    cursor: pointer;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
    z-index: 10002;
}

.modal-close:hover {
    background: var(--primary-color);
    color: white;
    transform: rotate(90deg);
}

.modal-content h2 {
    padding: 2.5rem 2.5rem 1.5rem;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
    margin: 0;
    font-size: 2.25rem;
    font-weight: 800;
}

.modal-body {
    padding: 2.5rem;
}

.modal-body h3 {
    color: var(--text-color);
    margin: 2.5rem 0 1.25rem;
    font-size: 1.75rem;
    font-weight: 700;
}

.modal-body h4 {
    color: var(--text-color);
    margin: 1.75rem 0 0.75rem;
    font-size: 1.375rem;
    font-weight: 600;
}

.modal-body p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.25rem;
    font-size: 1.0625rem;
}

.modal-body ul {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.modal-body li {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 0.75rem;
    font-size: 1.0625rem;
}

.modal-body strong {
    color: var(--text-color);
    font-weight: 700;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--bg-card);
        box-shadow: var(--shadow-lg);
        transition: left 0.3s;
        z-index: 999;
        padding: 2rem;
        border: 1px solid var(--border-color);
    }

    .nav.active {
        left: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 1.5rem;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .header-buttons {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
    }

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

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

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

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

    .benefits-grid,
    .infographics-grid,
    .stories-grid,
    .charts-grid,
    .researcher-cards,
    .methods-grid {
        grid-template-columns: 1fr;
    }

    .thank-you-actions {
        flex-direction: column;
    }

    .thank-you-actions .btn {
        width: 100%;
    }

    .modal-content {
        width: 95%;
        margin: 1rem auto;
        max-height: 95vh;
    }

    .modal-content h2 {
        padding: 1.5rem 1.5rem 1rem;
        font-size: 1.75rem;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .modal-body h3 {
        font-size: 1.5rem;
    }

    .modal-close {
        top: 15px;
        right: 15px;
        font-size: 1.75rem;
        width: 40px;
        height: 40px;
    }

    section {
        padding: 4rem 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .cookie-popup {
        left: 16px;
        right: 16px;
        transform: none;
        max-width: none;
        padding: 1.5rem;
    }

    .cookie-popup.show {
        transform: none;
    }

    .thank-you-content {
        padding: 2.5rem 1.5rem;
    }

    .thank-you-content h1 {
        font-size: 2rem;
    }
}

/* Scroll Animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-animate.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Additional Modern Styles */
.gradient-text {
    background: var(--bg-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-hover {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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