/* ============================================
   CSS Variables & Root Styles
   ============================================ */
:root {
    /* Color Palette - Dark Moody Theme */
    --color-bg-primary: #0a0a0b;
    --color-bg-secondary: #111113;
    --color-bg-tertiary: #1a1a1d;
    --color-bg-card: #151517;
    --color-bg-overlay: rgba(0, 0, 0, 0.92);
    
    /* Accent Colors */
    --color-accent-primary: #c9a962;
    --color-accent-secondary: #e8d5a3;
    --color-accent-glow: rgba(201, 169, 98, 0.3);
    
    /* Favorite Color */
    --color-favorite: #e74c3c;
    --color-favorite-glow: rgba(231, 76, 60, 0.4);
    
    /* Text Colors */
    --color-text-primary: #f5f5f5;
    --color-text-secondary: #a8a8a8;
    --color-text-muted: #6b6b6b;
    
    /* Borders */
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(201, 169, 98, 0.4);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px var(--color-accent-glow);
    
    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    
    /* Grid */
    --grid-gap: 1rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    
    /* Subtle background pattern */
    background-image: 
        radial-gradient(ellipse at 20% 0%, rgba(201, 169, 98, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(201, 169, 98, 0.03) 0%, transparent 50%);
}

body.lightbox-open {
    overflow: hidden;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-secondary);
}

/* Hidden utility class */
.hidden {
    display: none !important;
}

/* ============================================
   Header Styles
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(to bottom, var(--color-bg-primary), transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-text-primary);
    background: linear-gradient(135deg, var(--color-text-primary), var(--color-accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   Search Box Styles
   ============================================ */
.search-container {
    position: relative;
    display: flex;
    align-items: center;
    max-width: 300px;
    flex: 1;
}

.search-input {
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-md);
    padding-right: 70px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    outline: none;
    transition: all var(--transition-base);
}

.search-input::placeholder {
    color: var(--color-text-muted);
}

.search-input:focus {
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.search-btn {
    position: absolute;
    right: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--color-text-secondary);
    background: transparent;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.search-btn:hover {
    color: var(--color-accent-primary);
    background: var(--color-bg-card);
}

.search-clear {
    position: absolute;
    right: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--color-text-muted);
    background: transparent;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.search-clear:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-card);
}

/* ============================================
   Navigation Styles
   ============================================ */
.nav {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.nav-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-accent-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
    border-radius: inherit;
}

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

.nav-btn:hover::before {
    opacity: 0.1;
}

.nav-btn.active {
    color: var(--color-bg-primary);
    background: var(--color-accent-primary);
}

.nav-btn.active::before {
    opacity: 0;
}

.nav-btn-favorites .heart-icon {
    transition: transform var(--transition-fast);
}

.nav-btn-favorites:hover .heart-icon {
    transform: scale(1.2);
}

.nav-btn-favorites.active {
    background: var(--color-favorite);
}

.nav-btn-favorites.has-favorites .heart-icon {
    fill: var(--color-favorite);
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.lang-toggle:hover {
    color: var(--color-text-primary);
    border-color: var(--color-border-hover);
}

.lang-toggle:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
}

.lang-toggle svg {
    color: var(--color-accent-primary);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--spacing-2xl) + 60px) var(--spacing-lg) var(--spacing-xl);
    position: relative;
    
    /* Decorative background */
    background: 
        radial-gradient(circle at 50% 50%, rgba(201, 169, 98, 0.08) 0%, transparent 60%);
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent-primary) 50%, var(--color-text-primary) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 4s linear infinite;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 300;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

@keyframes shimmer {
    0% { background-position: 200% center; }
    100% { background-position: -200% center; }
}

/* ============================================
   Search Results Info
   ============================================ */
.search-results-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
}

.search-results-info strong {
    color: var(--color-accent-primary);
}

.clear-search-btn {
    margin-left: auto;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    background: var(--color-bg-card);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.clear-search-btn:hover {
    color: var(--color-text-primary);
    background: var(--color-accent-primary);
}

/* ============================================
   No Results & Empty States
   ============================================ */
.no-results,
.empty-favorites {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--color-text-muted);
}

.no-results svg,
.empty-favorites svg {
    opacity: 0.5;
}

.no-results h3,
.empty-favorites h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-text-secondary);
}

.no-results p,
.empty-favorites p {
    font-size: 0.875rem;
}

/* ============================================
   Gallery Container
   ============================================ */
.gallery-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg) var(--spacing-2xl);
}

/* ============================================
   Gallery Grid - Masonry Style
   ============================================ */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--grid-gap);
    
    /* For masonry effect */
    grid-auto-rows: 10px;
}

@media (min-width: 640px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .gallery-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   Gallery Item / Card
   ============================================ */
.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    background: var(--color-bg-card);
    
    /* Animation on load */
    opacity: 0;
    animation: cardFadeIn 0.5s ease forwards;
}

.gallery-item:nth-child(1) { animation-delay: 0.05s; }
.gallery-item:nth-child(2) { animation-delay: 0.1s; }
.gallery-item:nth-child(3) { animation-delay: 0.15s; }
.gallery-item:nth-child(4) { animation-delay: 0.2s; }
.gallery-item:nth-child(5) { animation-delay: 0.25s; }
.gallery-item:nth-child(6) { animation-delay: 0.3s; }
.gallery-item:nth-child(7) { animation-delay: 0.35s; }
.gallery-item:nth-child(8) { animation-delay: 0.4s; }

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.gallery-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.8) 0%,
        rgba(0, 0, 0, 0.3) 40%,
        transparent 100%
    );
    opacity: 0;
    transition: opacity var(--transition-slow);
    z-index: 1;
    pointer-events: none;
}

.gallery-item:hover::before,
.gallery-item:focus-within::before {
    opacity: 1;
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid transparent;
    border-radius: inherit;
    transition: border-color var(--transition-base);
    pointer-events: none;
    z-index: 2;
}

.gallery-item:hover::after,
.gallery-item:focus-within::after {
    border-color: var(--color-accent-primary);
}

.gallery-item-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover .gallery-item-image,
.gallery-item:focus-within .gallery-item-image {
    transform: scale(1.05);
}

.gallery-item-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    z-index: 2;
    transform: translateY(10px);
    opacity: 0;
    transition: all var(--transition-slow);
}

.gallery-item:hover .gallery-item-info,
.gallery-item:focus-within .gallery-item-info {
    transform: translateY(0);
    opacity: 1;
}

.gallery-item-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.gallery-item-author {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.gallery-item-author::before {
    content: '';
    width: 20px;
    height: 1px;
    background: var(--color-accent-primary);
}

/* Favorite Button on Gallery Item */
.gallery-item-favorite {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: 50%;
    color: var(--color-text-primary);
    z-index: 3;
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--transition-base);
}

.gallery-item:hover .gallery-item-favorite,
.gallery-item:focus-within .gallery-item-favorite,
.gallery-item-favorite.is-favorite {
    opacity: 1;
    transform: scale(1);
}

.gallery-item-favorite:hover {
    background: var(--color-favorite);
    transform: scale(1.1);
}

.gallery-item-favorite.is-favorite {
    color: var(--color-favorite);
}

.gallery-item-favorite.is-favorite svg {
    fill: var(--color-favorite);
}

.gallery-item-favorite svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.gallery-item-favorite:active svg {
    transform: scale(0.8);
}

/* Focus styles for accessibility */
.gallery-item:focus {
    outline: none;
}

.gallery-item:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
}

/* ============================================
   Skeleton Loading
   ============================================ */
.skeleton-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-card);
}

.skeleton-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        var(--color-bg-card) 0%,
        var(--color-bg-tertiary) 50%,
        var(--color-bg-card) 100%
    );
    background-size: 200% 100%;
    animation: skeletonShimmer 1.5s infinite;
}

.skeleton-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
}

.skeleton-title {
    height: 20px;
    width: 70%;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(
        90deg,
        var(--color-bg-tertiary) 0%,
        var(--color-bg-secondary) 50%,
        var(--color-bg-tertiary) 100%
    );
    background-size: 200% 100%;
    animation: skeletonShimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-author {
    height: 14px;
    width: 50%;
    background: linear-gradient(
        90deg,
        var(--color-bg-tertiary) 0%,
        var(--color-bg-secondary) 50%,
        var(--color-bg-tertiary) 100%
    );
    background-size: 200% 100%;
    animation: skeletonShimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeletonShimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ============================================
   Loader
   ============================================ */
.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-2xl);
    color: var(--color-text-secondary);
}

.loader-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   Scroll Sentinel & End of Content
   ============================================ */
.scroll-sentinel {
    height: 1px;
    width: 100%;
}

.end-of-content {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Lightbox / Modal
   ============================================ */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-bg-overlay);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.lightbox-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

/* Lightbox Top Controls */
.lightbox-top-controls {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
}

.slideshow-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.slideshow-speed {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.slideshow-speed select {
    background: transparent;
    border: none;
    color: var(--color-text-primary);
    font-size: 0.75rem;
    cursor: pointer;
    outline: none;
}

.slideshow-speed select option {
    background: var(--color-bg-secondary);
}

.lightbox-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.lightbox-control-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.lightbox-control-btn:hover {
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
}

.lightbox-control-btn.is-favorite {
    color: var(--color-favorite);
}

.lightbox-control-btn.is-favorite:hover {
    background: var(--color-favorite);
    color: white;
}

.lightbox-control-btn.is-playing {
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
}

.lightbox-close {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.lightbox-close:hover {
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
    transform: scale(1.1);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
    z-index: 10;
}

.lightbox-nav:hover {
    background: var(--color-accent-primary);
    color: var(--color-bg-primary);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.lightbox-prev {
    left: var(--spacing-md);
}

.lightbox-next {
    right: var(--spacing-md);
}

.lightbox-image-container {
    position: relative;
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.lightbox-image.loaded {
    opacity: 1;
}

.lightbox-loader {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-info {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    max-width: 600px;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
}

.lightbox-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.lightbox-author {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.lightbox-counter {
    font-size: 0.75rem;
    color: var(--color-accent-primary);
    font-weight: 500;
    letter-spacing: 0.1em;
}

/* Slideshow Progress Bar */
.slideshow-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
}

.slideshow-progress-bar {
    height: 100%;
    width: 0;
    background: var(--color-accent-primary);
    transition: width linear;
}

/* Fullscreen Styles */
.lightbox.fullscreen .lightbox-image {
    max-width: 100vw;
    max-height: 100vh;
    border-radius: 0;
}

.lightbox.fullscreen .lightbox-info {
    bottom: var(--spacing-md);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
}

.footer-divider {
    opacity: 0.3;
}

/* ============================================
   Mobile Menu Toggle (Hamburger)
   ============================================ */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    z-index: 200;
    transition: all var(--transition-base);
}

.mobile-menu-toggle:hover {
    background: var(--color-bg-card);
    border-color: var(--color-accent-primary);
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Responsive Adjustments
   ============================================ */

/* Large tablets and small desktops */
@media (max-width: 1024px) {
    .header-content {
        gap: var(--spacing-sm);
    }
    
    .search-container {
        max-width: 250px;
    }
    
    .nav-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* Tablets */
@media (max-width: 768px) {
    :root {
        --grid-gap: 0.75rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    /* Show mobile menu toggle */
    .mobile-menu-toggle {
        display: flex;
        order: 2;
    }
    
    .mobile-menu-overlay {
        display: block;
    }
    
    .header {
        padding: var(--spacing-md) var(--spacing-sm);
        padding-top: calc(var(--spacing-md) + env(safe-area-inset-top, 0px));
    }
    
    .header-content {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        gap: var(--spacing-sm);
        align-items: center;
        text-align: left;
    }
    
    .logo {
        font-size: 1.5rem;
        order: 1;
        align-self: center;
    }
    
    .mobile-menu-toggle {
        align-self: center;
    }
    
    /* Search container in mobile */
    .search-container {
        order: 3;
        grid-column: 1 / -1;
        max-width: 100%;
        width: 100%;
    }
    
    /* Navigation as mobile drawer */
    .nav {
        position: fixed;
        top: 0;
        right: -280px;
        width: 280px;
        height: 100vh;
        height: 100dvh;
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-xs);
        padding: calc(80px + env(safe-area-inset-top, 0px)) var(--spacing-md) var(--spacing-xl);
        padding-bottom: calc(var(--spacing-xl) + env(safe-area-inset-bottom, 0px));
        background: var(--color-bg-secondary);
        border-left: 1px solid var(--color-border);
        z-index: 175;
        overflow-y: auto;
        transition: right var(--transition-slow);
        order: 4;
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-btn {
        justify-content: flex-start;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9375rem;
        border-radius: var(--radius-md);
        min-height: 48px;
    }
    
    .nav-btn.active {
        background: var(--color-accent-primary);
    }
    
    .nav-btn-favorites.active {
        background: var(--color-favorite);
    }
    
    .lang-toggle {
        justify-content: flex-start;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9375rem;
        border-radius: var(--radius-md);
        min-height: 48px;
    }
    
    /* Hero section */
    .hero {
        min-height: 35vh;
        padding: calc(var(--spacing-2xl) + 100px) var(--spacing-md) var(--spacing-xl);
    }
    
    .hero-title {
        font-size: clamp(2rem, 7vw, 3.5rem);
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    /* Gallery container */
    .gallery-container {
        padding: 0 var(--spacing-sm) var(--spacing-xl);
        padding-left: calc(var(--spacing-sm) + env(safe-area-inset-left, 0px));
        padding-right: calc(var(--spacing-sm) + env(safe-area-inset-right, 0px));
    }
    
    /* Gallery grid */
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Lightbox adjustments */
    .lightbox-content {
        padding: var(--spacing-sm);
        padding-top: calc(var(--spacing-sm) + env(safe-area-inset-top, 0px));
        padding-bottom: calc(var(--spacing-sm) + env(safe-area-inset-bottom, 0px));
    }
    
    .lightbox-top-controls {
        top: calc(var(--spacing-sm) + env(safe-area-inset-top, 0px));
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .slideshow-controls {
        order: 1;
    }
    
    .lightbox-actions {
        order: 2;
        margin-left: auto;
    }
    
    .lightbox-nav {
        width: 44px;
        height: 44px;
    }
    
    .lightbox-nav svg {
        width: 24px;
        height: 24px;
    }
    
    .lightbox-prev {
        left: var(--spacing-xs);
    }
    
    .lightbox-next {
        right: var(--spacing-xs);
    }
    
    .lightbox-info {
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom, 0px));
        transform: none;
        max-width: none;
        padding: var(--spacing-sm);
    }
    
    .lightbox-title {
        font-size: 1rem;
    }
    
    .lightbox-author {
        font-size: 0.8125rem;
    }
    
    /* Footer */
    .footer {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        padding: var(--spacing-lg);
        padding-bottom: calc(var(--spacing-lg) + env(safe-area-inset-bottom, 0px));
        font-size: 0.8125rem;
    }
    
    /* Search results info */
    .search-results-info {
        flex-wrap: wrap;
        font-size: 0.875rem;
    }
}

/* Mobile phones */
@media (max-width: 480px) {
    :root {
        --grid-gap: 0.5rem;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .hero {
        min-height: 30vh;
        padding-top: calc(var(--spacing-xl) + 120px);
    }
    
    .hero-title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }
    
    .hero-subtitle {
        font-size: 0.9375rem;
    }
    
    /* Gallery grid - 2 columns for small phones */
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-item-info {
        padding: var(--spacing-xs);
    }
    
    .gallery-item-title {
        font-size: 0.8125rem;
        line-height: 1.3;
    }
    
    .gallery-item-author {
        font-size: 0.6875rem;
    }
    
    .gallery-item-author::before {
        width: 12px;
    }
    
    .gallery-item-favorite {
        width: 32px;
        height: 32px;
        top: var(--spacing-xs);
        right: var(--spacing-xs);
    }
    
    .gallery-item-favorite svg {
        width: 14px;
        height: 14px;
    }
    
    /* Lightbox controls */
    .lightbox-control-btn {
        width: 38px;
        height: 38px;
    }
    
    .lightbox-control-btn svg {
        width: 18px;
        height: 18px;
    }
    
    .lightbox-close {
        width: 40px;
        height: 40px;
    }
    
    .lightbox-close svg {
        width: 20px;
        height: 20px;
    }
    
    .slideshow-speed {
        display: none;
    }
    
    .lightbox-info {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .lightbox-title {
        font-size: 0.9375rem;
    }
    
    .lightbox-counter {
        font-size: 0.6875rem;
    }
    
    /* Empty states */
    .no-results,
    .empty-favorites {
        padding: var(--spacing-xl);
    }
    
    .no-results h3,
    .empty-favorites h3 {
        font-size: 1.25rem;
    }
    
    .no-results svg,
    .empty-favorites svg {
        width: 48px;
        height: 48px;
    }
    
    /* Search results */
    .search-results-info {
        padding: var(--spacing-sm);
        font-size: 0.8125rem;
    }
}

/* Very small phones */
@media (max-width: 360px) {
    .header-content {
        gap: var(--spacing-xs);
    }
    
    .logo {
        font-size: 1.125rem;
    }
    
    .mobile-menu-toggle {
        width: 40px;
        height: 40px;
    }
    
    .hamburger-line {
        width: 18px;
    }
    
    .search-input {
        font-size: 0.8125rem;
        padding: 0.375rem var(--spacing-sm);
        padding-right: 60px;
    }
    
    .nav {
        width: 260px;
        right: -260px;
    }
    
    .gallery-item-info {
        display: none;
    }
    
    .gallery-item:hover .gallery-item-info,
    .gallery-item:focus-within .gallery-item-info {
        display: block;
    }
}

/* Landscape mode on mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: calc(var(--spacing-lg) + 60px) var(--spacing-md) var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 0.9375rem;
    }
    
    .lightbox-info {
        bottom: var(--spacing-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .lightbox-image {
        max-height: 70vh;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Always show favorite button on touch devices */
    .gallery-item-favorite {
        opacity: 1;
        transform: scale(1);
    }
    
    /* Larger tap targets */
    .nav-btn {
        min-height: 44px;
    }
    
    .lightbox-nav {
        width: 48px;
        height: 48px;
    }
    
    /* Disable hover effects that don't work well on touch */
    .gallery-item:hover .gallery-item-image {
        transform: none;
    }
    
    .gallery-item:hover::before {
        opacity: 0.6;
    }
    
    .gallery-item:hover .gallery-item-info {
        transform: translateY(0);
        opacity: 1;
    }
}

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

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .header,
    .hero,
    .lightbox,
    .loader,
    .search-container {
        display: none;
    }
    
    .gallery-grid {
        display: block;
    }
    
    .gallery-item {
        break-inside: avoid;
        margin-bottom: 1rem;
    }
}