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

:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --accent-color: #FF3B30;
    --success-color: #34C759;
    --warning-color: #FF9500;
    --dark-bg: #1C1C1E;
    --darker-bg: #000000;
    --light-bg: #F2F2F7;
    --card-bg: #FFFFFF;
    --text-primary: #000000;
    --text-secondary: #8E8E93;
    --text-light: #FFFFFF;
    --border-color: #E5E5EA;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --gradient-primary: linear-gradient(135deg, #007AFF 0%, #5856D6 100%);
    --gradient-secondary: linear-gradient(135deg, #FF3B30 0%, #FF9500 100%);
    --gradient-dark: linear-gradient(135deg, #1C1C1E 0%, #000000 100%);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 28px;
    font-weight: 800;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.cta-btn {
    background: var(--gradient-primary);
    color: var(--text-light) !important;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

.cta-btn::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: var(--gradient-dark);
    color: var(--text-light);
    position: relative;
    overflow: hidden;
}

.hero::before {
    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="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-features {
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.feature-item i {
    color: var(--primary-color);
    font-size: 1.3rem;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
}

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

.btn-primary:hover, .btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-mockup {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.hero-mockup:hover {
    transform: scale(1.05);
}

/* Why AIOS Section */
.why-aios {
    padding: 80px 0;
    background: var(--card-bg);
}

.why-aios h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.why-aios p {
    font-size: 1.2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--light-bg);
}

.features h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.feature-image {
    margin-bottom: 20px;
    border-radius: 15px;
    overflow: hidden;
}

.feature-image img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

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

.feature-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Cydia2 Section */
.cydia2 {
    padding: 80px 0;
    background: var(--card-bg);
}

.cydia2 h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cydia2 > p {
    font-size: 1.2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Center all descriptions under main titles */
.aios-themes > p,
.aios-versions > p,
.features > .container > p,
.cydia2 > p,
.why-aios > .container > p,
.how-it-works > .container > p,
.cta-section > .container > p,
.faq > .container > p {
    font-size: 1.2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* General rule for centering descriptions after main titles */
.container h2 + p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.cydia2-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.cydia2-feature {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.cydia2-feature h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.cydia2-feature p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.cydia2-themes {
    margin-bottom: 60px;
}

.cydia2-themes h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-primary);
}

.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.themes-grid-4x4 {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.theme-item {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.theme-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.theme-item img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 15px;
}

.theme-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.install-flow {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.install-flow h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.install-flow p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* AIOS Themes Section */
.aios-themes {
    padding: 80px 0;
    background: var(--light-bg);
}

.aios-themes h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.aios-themes > p {
    font-size: 1.2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.themes-showcase {
    margin-bottom: 60px;
}

.theme-category h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-primary);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.category-item {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.category-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.category-item h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.category-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.themes-gallery h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.gallery-grid img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.gallery-grid img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

/* AIOS Versions Section */
.aios-versions {
    padding: 80px 0;
    background: var(--card-bg);
}

.aios-versions h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.aios-versions > p {
    font-size: 1.2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.versions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.version-item {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.version-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.version-item img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    margin-bottom: 20px;
}

.version-item h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.version-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Compatibility & Security Section */
.compatibility-security {
    padding: 80px 0;
    background: var(--light-bg);
}

.compatibility-security .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.compatibility, .security {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.compatibility h3, .security h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.compatibility ul, .security ul {
    list-style: none;
}

.compatibility li, .security li {
    padding: 10px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 20px;
}

.compatibility li:last-child, .security li:last-child {
    border-bottom: none;
}

.compatibility li::before, .security li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
    background: var(--card-bg);
}

.how-it-works h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
    box-shadow: var(--shadow);
}

.step h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.step p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: var(--gradient-dark);
    color: var(--text-light);
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
}

.cta-buttons .btn-secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--primary-color);
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background: var(--light-bg);
}

.faq h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    text-align: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.faq-item {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.faq-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.faq-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: var(--text-light);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3, .footer-section h4 {
    margin-bottom: 20px;
    color: var(--text-light);
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--card-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .compatibility-security .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .themes-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .themes-grid-4x4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .versions-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .btn-primary, .btn-secondary {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .feature-card, .cydia2-feature, .theme-item, .version-item, .faq-item {
        padding: 20px;
    }
    
    .themes-grid {
        grid-template-columns: 1fr;
    }
    
    .themes-grid-4x4 {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card, .theme-item, .version-item, .faq-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}