/* Light Mode Stylesheet - Mobile First */

/* CSS Custom Properties for theming */
:root {
    /* Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --accent-color: #d4af37; /* Wedding gold */
    --accent-hover: #b8941f;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --accent-glow: rgba(212, 175, 55, 0.12);
    --accent-shadow: rgba(212, 175, 55, 0.25);
    --gradient-start: rgba(212, 175, 55, 0.05);
    --gradient-end: transparent;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
}

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

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Header */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    box-shadow: 0 2px 4px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--accent-glow);
}

.site-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0.5;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 600;
    left: 50%;
    transform: translateX(-50%);
    position: absolute;
    color: var(--text-primary);
    text-align: center;
}

.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: transform 0.2s ease, border-color 0.2s ease;
    margin-left: auto;
}

.theme-toggle:hover {
    transform: scale(1.1);
    border-color: var(--accent-color);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* Hero Section */
.hero-section {
    padding: var(--spacing-lg) var(--spacing-md);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0.6;
}

.video-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 8px var(--shadow-color);
}

.hero-video {
    width: 100%;
    display: block;
}

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

.hero-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* Moments Section */
.moments-section {
    padding: var(--spacing-xl) var(--spacing-md);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-hover), var(--accent-color), var(--accent-hover));
    border-radius: 1px;
}

.moments-grid {
    display: grid;
    grid-template-columns: minmax(0, 400px);
    justify-content: center;
    gap: var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.moment-card {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px var(--shadow-color), 0 0 0 1px var(--accent-glow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    /* Scroll reveal animation - initially hidden */
    opacity: 0;
    transform: translateY(20px);
}

.moment-card.revealed {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.moment-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px var(--shadow-color), 0 0 20px var(--accent-glow);
}

.moment-card img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.moment-caption {
    padding: var(--spacing-sm);
    text-align: center;
    font-weight: 500;
    color: var(--text-primary);
}

/* Gallery Link Section */
.gallery-link-section {
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: var(--bg-secondary);
}

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

.gallery-cta h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.gallery-cta p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.gallery-button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 1.125rem;
    font-weight: 600;
    transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 8px var(--shadow-color), 0 0 15px var(--accent-shadow);
}

.gallery-button:hover {
    background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-color) 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--shadow-color), 0 0 25px var(--accent-shadow);
}

.gallery-button:active {
    transform: translateY(0);
}

.download-hint {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 400px;
    margin: 0 auto var(--spacing-lg);
}

.contact-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    transition: border-color 0.3s ease, transform 0.2s ease;
}

.contact-link:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-label {
    font-weight: 500;
}

.footer-note {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-credit {
    margin-top: 1rem;
    font-size: 0.625rem;
    color: var(--text-secondary);
    opacity: 0.5;
}

/* Tablet breakpoint */
@media (min-width: 768px) {
    .site-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .moments-grid {
        grid-template-columns: repeat(2, minmax(0, 280px));
        gap: var(--spacing-lg);
    }

    .contact-links {
        flex-direction: row;
        max-width: 600px;
    }
}

/* Desktop breakpoint */
@media (min-width: 1024px) {
    .moments-grid {
        grid-template-columns: repeat(3, minmax(0, 280px));
    }

    .hero-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }
}

/* Large desktop */
@media (min-width: 1440px) {
    .moments-grid {
        grid-template-columns: repeat(4, minmax(0, 280px));
    }
}

/* TODO: Refine spacing and typography scales */
/* TODO: Add smooth scroll behavior */
/* TODO: Consider adding animation delays to stagger moment card reveals */
/* TODO: Optimize for very small screens (<375px) */

/* ===================================
   Gallery-Specific Styles
   =================================== */

/* Override body for gallery/album full-screen experience */
body.gallery-page,
body.album-page {
    margin: 0;
    overflow: hidden;
    background-color: var(--bg-primary);
}

.gallery-container,
.album-container {
    width: 100%;
    height: 100vh;
    position: relative;
}

/* Swiper container fills viewport */
.swiper {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bg-primary);
}

.swiper-slide img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    user-select: none;
    -webkit-user-select: none;
}

/* Minimal overlay controls */
.gallery-controls,
.album-controls {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: linear-gradient(to bottom, rgba(0,0,0,0.7), transparent);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    opacity: 1;
    gap: 1rem;
    transition: opacity 0.3s ease;
}

.gallery-controls.hidden {
    opacity: 0;
    pointer-events: none;
}

.back-button {
    background: rgba(255, 255, 255, 0.35);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.back-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.back-button:active {
    transform: scale(0.95);
}

.download-button {
    background: rgba(255, 255, 255, 0.35);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.download-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.download-button:active {
    transform: scale(0.95);
}

.counter-download-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.photo-counter {
    color: white;
    font-size: 1rem;
    font-weight: 500;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

.gallery-controls .theme-toggle,
.album-controls .theme-toggle {
    background: rgba(255, 255, 255, 0.35);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    transition: background 0.2s ease;
    color: white;
}

.gallery-controls .theme-toggle:active {
    background: rgba(255, 255, 255, 0.3);
}

/* Swiper navigation buttons - with outline for visibility */
.swiper-button-next,
.swiper-button-prev {
    color: rgba(0, 0, 0, 0.8);
    transition: color 0.3s ease, opacity 0.3s ease;
    filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.9))
            drop-shadow(0 0 4px rgba(255, 255, 255, 0.6));
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    color: rgba(0, 0, 0, 1);
}

/* Hide navigation arrows when controls are hidden */
.album-controls.hidden ~ .swiper .swiper-button-next,
.album-controls.hidden ~ .swiper .swiper-button-prev {
    opacity: 0;
    pointer-events: none;
}

/* Download prompt modal */
.download-prompt {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    z-index: 200;
    display: none;
    text-align: center;
    max-width: 90%;
    width: 300px;
    box-shadow: 0 8px 32px var(--shadow-color);
}

.download-prompt.show {
    display: block;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.9); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

.download-prompt h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.download-prompt p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.download-buttons {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.download-btn,
.cancel-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

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

.download-btn:active {
    background: var(--accent-hover);
}

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

.cancel-btn:active {
    background: var(--border-color);
}

/* Loading indicator */
.loading-indicator {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-primary);
    font-size: 1rem;
    z-index: 50;
    display: none;
    background: var(--bg-secondary);
    padding: 1rem 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
}

.loading-indicator.show {
    display: block;
}

/* Tablet and desktop refinements */
@media (min-width: 768px) {
    .photo-counter {
        font-size: 1rem;
    }
    
    .gallery-controls .theme-toggle {
        width: 44px;
        height: 44px;
    }
}

/* TODO: Add keyboard navigation hints for desktop */
/* TODO: Refine swiper navigation button positioning for different screen sizes */
/* TODO: Add subtle zoom on double-tap for mobile */