:root {
    --primary-color: #007AFF;
    --secondary-color: #34C759;
    --accent-color: #FF3B30;
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --text-tertiary: #C7C7CC;
    --background: #FFFFFF;
    --surface: #F2F2F7;
    --surface-elevated: #FFFFFF;
    --border: #E5E5EA;
    --gradient-primary: linear-gradient(135deg, #007AFF 0%, #5856D6 100%);
    --gradient-secondary: linear-gradient(135deg, #34C759 0%, #30D158 100%);
    --gradient-accent: linear-gradient(135deg, #FF3B30 0%, #FF6B35 100%);
    --gradient-hero: linear-gradient(135deg, #F8F9FA 0%, #E3F2FD 50%, #F3E5F5 100%);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.18);
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(229, 229, 234, 0.6);
    z-index: 1000;
    transition: var(--transition);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 24px;
    color: var(--text-primary);
    line-height: 1;
    height: 40px;
}

.nav-logo {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    flex-shrink: 0;
    border-radius: 6px;
    overflow: hidden;
}

.nav-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.brand-text {
    font-weight: 700;
    font-size: 24px;
    color: var(--text-primary);
    line-height: 1;
    display: inline-flex;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

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

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

.nav-actions {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.05);
}

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

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

.btn-primary.large, .btn-secondary.large {
    padding: 16px 32px;
    font-size: 16px;
}

/* Hero Section */
.hero {
    padding: 140px 0 100px;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 59, 48, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(52, 199, 89, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 59, 48, 0.12);
    color: var(--accent-color);
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 32px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 59, 48, 0.2);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-bounce);
}

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

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

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

.hero-description {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
}

.phone-mockup {
    position: relative;
    transform: perspective(1200px) rotateY(-8deg) rotateX(2deg);
    transition: var(--transition);
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
}

.phone-mockup:hover {
    transform: perspective(1200px) rotateY(-5deg) rotateX(1deg) scale(1.02);
    filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.2));
}

.hero-phone-image {
    width: 300px;
    height: auto;
    max-height: 600px;
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    object-fit: contain;
    transition: var(--transition);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--background);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-header p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--surface-elevated);
    padding: 40px 32px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
    text-align: center;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

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

.feature-icon {
    width: 72px;
    height: 72px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    font-size: 28px;
    color: white;
    box-shadow: var(--shadow-md);
    transition: var(--transition-bounce);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-lg);
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

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

/* Why Choose Section */
.why-choose {
    padding: 100px 0;
    background: var(--surface);
}

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

.why-text h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.benefits {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.benefit {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.benefit-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    flex-shrink: 0;
}

.benefit-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

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

.app-preview {
    display: flex;
    justify-content: center;
}

.preview-image {
    max-width: 300px;
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    object-fit: contain;
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background: var(--background);
}

.rating-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
}

.stars {
    display: flex;
    gap: 4px;
    color: #FFD700;
    font-size: 24px;
}

.rating-text {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 600;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.testimonial-card {
    background: var(--background);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.user-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.user-info h4 {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.user-info span {
    color: var(--text-secondary);
    font-size: 14px;
}

.testimonial-card p {
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-rating {
    display: flex;
    gap: 4px;
    color: #FFD700;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1D1D1F 0%, #2D2D30 100%);
    color: white;
    text-align: center;
}

.cta-badge {
    margin-bottom: 24px;
}

.new-badge {
    background: var(--gradient-accent);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cta-section h2 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.emoji {
    font-size: 40px;
}

.cta-section > p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 60px;
}

.trial-section {
    margin-bottom: 60px;
}

.trial-section h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.trial-disclaimer {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
}

.trial-btn {
    background: var(--gradient-primary);
    color: white;
    padding: 16px 40px;
    font-size: 18px;
    font-weight: 700;
}

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

.btn-download {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 16px 24px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.btn-download:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.primary-download {
    background: rgba(255, 255, 255, 0.15) !important;
    border: 2px solid rgba(255, 255, 255, 0.3) !important;
}

.primary-download:hover {
    background: rgba(255, 255, 255, 0.25) !important;
    border-color: rgba(255, 255, 255, 0.5) !important;
    transform: translateY(-4px) scale(1.02);
}

.notify-download {
    background: rgba(255, 255, 255, 0.08) !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    opacity: 0.8;
}

.notify-download:hover {
    background: rgba(255, 255, 255, 0.15) !important;
    opacity: 1;
}

.btn-download i {
    font-size: 24px;
}

.download-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.download-label {
    font-size: 12px;
    opacity: 0.8;
}

.download-store {
    font-size: 16px;
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
}

.brand-logo .footer-logo {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    overflow: hidden;
}

.brand-logo .footer-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    max-width: 300px;
}

.footer-column h4 {
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content,
    .why-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .section-header h2 {
        font-size: 40px;
    }
    
    .why-text h2 {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-actions {
        gap: 8px;
    }
    
    .btn-primary, .btn-secondary {
        padding: 10px 16px;
        font-size: 12px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-description {
        font-size: 18px;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 24px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .phone-frame {
        width: 250px;
        height: 500px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .why-text h2 {
        font-size: 32px;
    }
    
    .cta-section h2 {
        font-size: 36px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .why-text h2 {
        font-size: 28px;
    }
    
    .cta-section h2 {
        font-size: 28px;
    }
    
    .phone-frame {
        width: 200px;
        height: 400px;
    }
    
    .feature-card,
    .testimonial-card {
        padding: 24px;
    }
    
    .benefits {
        gap: 24px;
    }
    
    .benefit {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
}

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

@keyframes float {
    0%, 100% {
        transform: perspective(1200px) rotateY(-8deg) rotateX(2deg) translateY(0px);
    }
    50% {
        transform: perspective(1200px) rotateY(-8deg) rotateX(2deg) translateY(-15px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.hero-visual {
    animation: float 8s ease-in-out infinite;
}

.hero-badge {
    animation: pulse 3s ease-in-out infinite;
}

.feature-card,
.testimonial-card {
    animation: fadeInUp 0.6s ease-out;
}

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

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

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

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

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