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

:root {
    --primary-color: #007AFF;
    --primary-dark: #0051D5;
    --secondary-color: #5856D6;
    --text-primary: #1C1C1E;
    --text-secondary: #6C6C70;
    --background: #FFFFFF;
    --background-secondary: #F2F2F7;
    --border-color: #E5E5EA;
    --success-color: #34C759;
    --gradient-start: #007AFF;
    --gradient-end: #5856D6;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --border-radius: 12px;
    --border-radius-lg: 20px;
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}

.nav-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-cta {
    background: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--background) 0%, var(--background-secondary) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

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

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

.btn-secondary:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-large {
    padding: 20px 40px;
    font-size: 18px;
}

.apple-logo {
    width: 20px;
    height: 20px;
}

.hero-features {
    display: flex;
    gap: 32px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
}

.hero-feature-icon {
    width: 20px;
    height: 20px;
    color: var(--primary-color);
}

.hero-image {
    position: relative;
}

.hero-screenshot {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    margin: 0 auto;
    display: block;
}

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--background-secondary);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

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

/* Screenshots Section */
.screenshots {
    padding: 80px 0;
    background: var(--background-secondary);
}

.screenshots-carousel {
    display: flex;
    gap: 32px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.screenshot-wrapper {
    flex: 0 0 auto;
    text-align: center;
    scroll-snap-align: center;
}

.screenshot {
    width: 250px;
    height: auto;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.screenshot:hover {
    transform: scale(1.05);
}

.screenshot-caption {
    margin-top: 16px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Privacy Section */
.privacy {
    padding: 80px 0;
    background: var(--background);
}

.privacy-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
    align-items: center;
}

.privacy-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.privacy-list {
    list-style: none;
    margin-bottom: 32px;
}

.privacy-list li {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.check-icon {
    width: 24px;
    height: 24px;
    color: var(--success-color);
    flex-shrink: 0;
}

.privacy-links {
    display: flex;
    gap: 24px;
}

.privacy-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.privacy-link:hover {
    opacity: 0.8;
}

.privacy-shield {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.privacy-shield svg {
    width: 100px;
    height: 100px;
    color: white;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 42px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

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

.cta .btn-primary:hover {
    background: var(--background-secondary);
}

/* Footer */
.footer {
    padding: 60px 0 40px;
    background: var(--text-primary);
    color: white;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-features {
        flex-wrap: wrap;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .privacy-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 32px;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
}