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

/* CSS Variables for Light/Dark Mode */
:root {
    /* Light Mode Colors (derived from hero image - warm maroon palette) */
    --primary-color: #7D0E18; /* deep maroon */
    --primary-hover: #680A13; /* darker maroon */
    --secondary-color: #F4EDEE; /* soft rose */
    --accent-color: #007AFF;
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --text-tertiary: #666666;
    --bg-primary: #FFFFFF;
    --bg-secondary: #FBF7F8; /* very light rose */
    --bg-tertiary: #FFFDFD; /* warm white */
    --border-color: #EEDADD;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.12);
    
    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #E14655; /* brightened maroon for dark */
        --primary-hover: #FF5B6C;
        --text-primary: #FFFFFF;
        --text-secondary: #A1A1AA;
        --text-tertiary: #9CA3AF;
        --bg-primary: #111111;
        --bg-secondary: #1A1A1A;
        --bg-tertiary: #2A2A2A;
        --border-color: #3A2022;
        --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.3);
        --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.4);
        --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.5);
    }
}

/* Base Styles */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.65;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-normal);
}

@media (prefers-color-scheme: dark) {
    .header {
        background: rgba(17, 17, 17, 0.8);
    }
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    height: 70px;
}

.header.scrolled {
    box-shadow: var(--shadow-light);
    background: rgba(255, 255, 255, 0.9);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-left: 0;
}

.logo {
    height: 48px;
    width: 48px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.app-name {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: var(--transition-fast);
}

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

.cta-button {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    margin: 2px 0;
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: calc(70px + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-3xl);
    background: radial-gradient(1200px 600px at 10% 10%, rgba(178, 34, 52, 0.08), transparent 60%),
                radial-gradient(900px 500px at 90% 10%, rgba(154, 28, 40, 0.08), transparent 60%),
                linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-title {
    font-size: clamp(2rem, 4.5vw, var(--font-size-5xl));
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.primary-button {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-lg);
    transition: var(--transition-normal);
    display: inline-block;
    box-shadow: var(--shadow-medium);
    border: none;
    cursor: pointer;
}

.primary-button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.secondary-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition-fast);
}

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

.secondary-link::after {
    content: ' →';
    transition: var(--transition-fast);
}

.secondary-link:hover::after {
    transform: translateX(4px);
}

.store-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.store-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    text-decoration: none;
    box-shadow: var(--shadow-light);
    transition: var(--transition-fast);
}

.store-button:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.store-icon {
    font-size: 20px;
}

.store-text small {
    display: block;
    line-height: 1;
    color: var(--text-secondary);
}

.store-text strong {
    line-height: 1;
}

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

.hero-img {
    width: 100%;
    max-width: 1200px;
    height: auto;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: 28px;
    box-shadow: 0 30px 80px rgba(178, 34, 52, 0.25), var(--shadow-heavy);
    transition: var(--transition-slow);
    outline: 1px solid rgba(178, 34, 52, 0.18);
    outline-offset: -1px;
}

@media (min-width: 1400px) {
    .hero-img {
        max-width: 1300px;
    }
}

.hero-img:hover {
    transform: scale(1.02);
}

/* Features Section */
.features {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--bg-tertiary);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
}

.feature-card {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-light);
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

/* Discover Section */
.discover {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--bg-primary);
}

.discover-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-top: var(--spacing-lg);
}

.gallery-container {
    position: relative;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.gallery-container::-webkit-scrollbar {
    display: none;
}

.gallery-scroll {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
    min-width: min-content;
    scroll-snap-type: x mandatory;
}

.gallery-item {
    flex: 0 0 280px;
    position: relative;
    scroll-snap-align: start;
}

.gallery-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--border-color) 100%);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.gallery-item:hover .gallery-placeholder {
    transform: scale(1.05);
}

.gallery-tag {
    position: absolute;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.gallery-controls {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.gallery-arrow {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    box-shadow: var(--shadow-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.gallery-arrow:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

@media (prefers-color-scheme: dark) {
    .gallery-tag {
        background: rgba(0, 0, 0, 0.7);
    }
}

/* CTA Section */
.cta {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
}

.cta .section-title,
.cta .section-description {
    color: white;
}

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

.cta-form {
    margin-top: var(--spacing-2xl);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

#email {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: var(--font-size-lg);
    backdrop-filter: blur(10px);
    transition: var(--transition-fast);
    width: 100%;
}

#email::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

#email:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.15);
}

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

.cta .primary-button:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.form-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
}

/* Footer */
.footer {
    background: var(--bg-tertiary);
    padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    height: 36px;
    width: 36px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.footer-app-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.footer-right {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: flex-end;
}

.footer-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

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

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.footer-social a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
}

/* Skip link */
.skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.skip-link:focus {
    left: 1rem;
    top: 1rem;
    z-index: 1001;
    width: auto;
    height: auto;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-light);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .header-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-title {
        font-size: clamp(2rem, 7vw, 2.5rem);
    }
    
    .hero-actions {
        align-items: center;
        width: 100%;
    }
    
    .primary-button,
    .cta-button {
        width: 100%;
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .footer-right {
        align-items: center;
        width: 100%;
    }
    
    .form-group {
        gap: var(--spacing-md);
    }

    .gallery-controls {
        justify-content: space-between;
    }
}

@media (max-width: 480px) {
    .container,
    .hero,
    .features,
    .discover,
    .cta,
    .footer {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .hero-title {
        font-size: clamp(1.75rem, 8vw, 2rem);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .gallery-item {
        flex: 0 0 240px;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 70px;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--primary-color);
    z-index: 999;
    transition: width 0.1s ease;
}

/* Focus States for Accessibility */
button:focus,
input:focus,
a:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}