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

:root {
    /* Colors inspired by Yearloop app */
    --primary-color: #007AFF;
    --primary-dark: #0051D5;
    --primary-light: #4DA3FF;
    --secondary-color: #5856D6;
    --accent-color: #FF3B30;
    --text-dark: #1C1C1E;
    --text-light: #8E8E93;
    --background: #FFFFFF;
    --background-secondary: #F2F2F7;
    --border-color: #E5E5EA;
    --success-color: #34C759;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #007AFF 0%, #5856D6 100%);
    --gradient-hero: linear-gradient(180deg, #FFFFFF 0%, #F2F2F7 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    background: var(--background);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.btn-download-nav {
    padding: 0.5rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    background: var(--gradient-hero);
    margin-top: 72px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--text-dark);
    color: white;
    text-decoration: none;
    border-radius: 16px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

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

.btn-coming-soon {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--text-light);
    color: white;
    border-radius: 16px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: not-allowed;
    opacity: 0.8;
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.2rem;
}

.platform-info {
    color: var(--text-light);
    font-size: 0.95rem;
}

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

.phone-mockup {
    position: relative;
    max-width: 300px;
    animation: float 6s ease-in-out infinite;
}

.screenshot-main {
    width: 100%;
    height: auto;
    border-radius: 32px;
    box-shadow: var(--shadow-xl);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

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

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

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
}

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

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

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

.screenshots-carousel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
}

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

.screenshot-item img {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    margin-bottom: 1rem;
}

.screenshot-item img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.screenshot-item p {
    color: var(--text-light);
    font-weight: 500;
}

/* CTA Section */
.cta {
    padding: var(--spacing-xl) 0;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

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

.cta .btn-coming-soon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-note {
    margin-top: 1rem;
    font-size: 0.95rem;
    opacity: 0.8;
}

/* Footer */
.footer {
    padding: var(--spacing-lg) 0;
    background: var(--text-dark);
    color: white;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-brand img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.footer-text {
    color: var(--text-light);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0.5rem 0;
}

.footer-links a {
    color: var(--primary-light);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: white;
    text-decoration: underline;
}

.footer-links .separator {
    color: var(--text-light);
}

.footer-copy {
    color: var(--text-light);
    font-size: 0.9rem;
    opacity: 0.7;
}

.footer-copy a {
    color: var(--primary-light);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-copy a:hover {
    color: white;
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshots-carousel {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn-primary {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .phone-mockup {
        max-width: 250px;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .screenshots-carousel {
        grid-template-columns: 1fr;
    }
    
    .cta-content h2 {
        font-size: 1.75rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .cta,
    .footer {
        display: none;
    }
}