/* ============================================
   FERDIN PHOTOGRAPHY - GALLERY STYLES
   ============================================ */

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --text-primary: #f5f5f5;
    --text-secondary: #666666;
    --accent-gold: #c9a227;
    --accent-gold-hover: #d4af37;
    --accent-gold-dim: rgba(201, 162, 39, 0.15);
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Montserrat', -apple-system, sans-serif;
    --transition: 0.3s ease;
    --transition-fast: 0.15s ease;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* ============================================
   HEADER
   ============================================ */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: linear-gradient(to bottom, var(--bg-primary) 0%, rgba(10, 10, 10, 0.98) 100%);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(201, 162, 39, 0.1);
}

.logo {
    text-decoration: none;
    transition: opacity var(--transition);
}

.logo:hover {
    opacity: 0.8;
}

.logo img {
    height: 45px;
    width: auto;
    display: block;
}

.event-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
}

.event-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-primary);
    letter-spacing: 0.05em;
}

.photo-count {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* ============================================
   GALLERY GRID
   ============================================ */

.gallery-container {
    padding: 2rem;
    max-width: 1800px;
    margin: 0 auto;
    min-height: calc(100vh - 80px);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.75rem;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 2px;
    cursor: pointer;
    background-color: var(--bg-secondary);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease, filter var(--transition);
    will-change: transform;
}

.gallery-item:hover img {
    transform: scale(1.03);
}

.gallery-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.5) 0%,
        rgba(0, 0, 0, 0) 40%
    );
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
    z-index: 1;
}

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

/* Download hint on hover */
.gallery-item::after {
    content: '';
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    width: 32px;
    height: 32px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2'%3E%3Cpath d='M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4'/%3E%3Cpolyline points='7,10 12,15 17,10'/%3E%3Cline x1='12' y1='15' x2='12' y2='3'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity var(--transition), transform var(--transition);
    pointer-events: none;
    z-index: 2;
}

.gallery-item:hover::after {
    opacity: 0.9;
    transform: translateX(-50%) translateY(0);
}

/* New photo animation */
.gallery-item.new {
    animation: fadeInScale 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ============================================
   LOADING & EMPTY STATES
   ============================================ */

.loading,
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem;
    color: var(--text-secondary);
}

.loader {
    width: 36px;
    height: 36px;
    border: 2px solid var(--bg-tertiary);
    border-top-color: var(--accent-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 1.5rem;
}

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

.loading p {
    font-size: 0.875rem;
    font-weight: 300;
    letter-spacing: 0.05em;
}

.empty-state .empty-icon {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-state p {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-style: italic;
    color: var(--text-secondary);
}

.empty-state .subtext {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-style: normal;
    margin-top: 0.5rem;
    opacity: 0.6;
}

/* ============================================
   LIGHTBOX
   ============================================ */

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.97);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.lightbox.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.lightbox-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    max-height: calc(100vh - 100px);
    width: 100%;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox-content img.loaded {
    opacity: 1;
}

.lightbox-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.lightbox-loading .loader {
    margin-bottom: 0;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.75rem;
    cursor: pointer;
    padding: 1rem;
    transition: color var(--transition), transform var(--transition-fast);
    z-index: 10;
    opacity: 0.7;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    color: var(--accent-gold);
    opacity: 1;
}

.lightbox-close {
    top: 0.5rem;
    right: 0.5rem;
    font-size: 2rem;
}

.lightbox-prev {
    left: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-prev:hover {
    transform: translateY(-50%) translateX(-3px);
}

.lightbox-next:hover {
    transform: translateY(-50%) translateX(3px);
}

.lightbox-footer {
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: center;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.875rem 1.75rem;
    background-color: var(--accent-gold);
    color: var(--bg-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    border-radius: 2px;
    transition: background-color var(--transition), transform var(--transition-fast), box-shadow var(--transition);
}

.download-btn:hover {
    background-color: var(--accent-gold-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(201, 162, 39, 0.3);
}

.download-btn:active {
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .header {
        padding: 0.875rem 1rem;
    }
    
    .logo img {
        height: 36px;
    }
    
    .event-name {
        font-size: 1rem;
    }
    
    .photo-count {
        font-size: 0.65rem;
    }
    
    .gallery-container {
        padding: 0.75rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 0.4rem;
    }
    
    .gallery-item::after {
        display: none;
    }
    
    .lightbox-prev,
    .lightbox-next {
        font-size: 1.25rem;
        padding: 0.75rem;
    }
    
    .lightbox-close {
        font-size: 1.5rem;
    }
    
    .download-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.3rem;
    }
    
    .gallery-item {
        border-radius: 1px;
    }
}

/* ============================================
   TOUCH DEVICE OPTIMIZATIONS
   ============================================ */

@media (hover: none) {
    .gallery-item:hover img {
        transform: none;
    }
    
    .gallery-item::before,
    .gallery-item::after {
        display: none;
    }
}