:root {
    --bg-color: #0d0d0f;
    --text-primary: #ededed;
    --text-secondary: #9999a0;
    --accent: #dca34a; /* Classic warm gold/amber */
    --surface: #17171a;
    --surface-hover: #222226;
    --font-heading: 'Cinzel', serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Subtle Film Grain Noise */
.film-grain {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
}

/* Header & Navigation */
.header {
    text-align: center;
    padding: 5rem 2rem 3rem;
    position: relative;
    z-index: 100;
}

.logo h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 500;
    letter-spacing: 3px;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    text-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.logo p {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--accent);
    letter-spacing: 5px;
    text-transform: uppercase;
    font-size: 0.9rem;
    margin-bottom: 2.5rem;
}

.filters {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    position: sticky;
    top: 20px;
    background: rgba(13, 13, 15, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 2rem;
    border-radius: 50px;
    width: max-content;
    margin: 0 auto;
    border: 1px solid rgba(255,255,255,0.05);
}

.filter-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition);
    border-radius: 2px;
}

.filter-btn:hover, .filter-btn.active {
    color: var(--text-primary);
}

.filter-btn.active::after {
    width: 100%;
}

/* Gallery Masonry Layout */
.gallery-container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 50vh;
}

.gallery {
    column-count: 3;
    column-gap: 2rem;
}

@media (max-width: 1200px) {
    .gallery { column-count: 2; column-gap: 1.5rem; }
}

@media (max-width: 700px) {
    .gallery { column-count: 1; }
    .filters { width: 90%; border-radius: 12px; }
}

.gallery-item {
    break-inside: avoid;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border-radius: 6px;
    opacity: 0;
    transform: translateY(30px);
    animation: reveal 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    background-color: var(--surface);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

@keyframes reveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gallery-item img {
    width: 100%;
    display: block;
    transition: transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1), filter 0.8s ease;
    object-fit: cover;
    filter: brightness(0.9) contrast(1.05);
}

.gallery-item:hover img {
    transform: scale(1.03);
    filter: brightness(1) contrast(1.1);
}

/* The overlay info on hover */
.item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.2) 60%, rgba(0,0,0,0) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2.5rem;
}

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

.item-overlay h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 400;
    margin-bottom: 0.25rem;
    transform: translateY(15px);
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.item-overlay p {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    transform: translateY(15px);
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.gallery-item:hover .item-overlay h3,
.gallery-item:hover .item-overlay p {
    transform: translateY(0);
}

.loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 4rem;
    font-family: monospace;
    letter-spacing: 2px;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.error-msg {
    text-align: center;
    color: #cc6666;
    padding: 2rem;
}

/* Fancy Lightbox Overlay */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(6, 6, 8, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.lightbox-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    max-width: 90vw;
    max-height: 85vh;
    opacity: 0;
    transform: scale(0.98);
    transition: var(--transition);
}

.lightbox.active .lightbox-content {
    opacity: 1;
    transform: scale(1);
    transition-delay: 0.1s;
}

@media (max-width: 1024px) {
    .lightbox-content {
        flex-direction: column;
        gap: 2rem;
    }
}

.lightbox-img-wrapper {
    position: relative;
    max-height: 85vh;
    box-shadow: 0 20px 60px rgba(0,0,0,0.8);
}

.lightbox-img-wrapper::after {
    /* Subtle inner border for a photo print effect */
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(255,255,255,0.1);
    pointer-events: none;
}

.lightbox-content img {
    max-height: 85vh;
    max-width: 100%;
    object-fit: contain;
    display: block;
}

.lightbox-info {
    max-width: 400px;
    text-align: left;
    background: rgba(255,255,255,0.02);
    padding: 3rem;
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 8px;
}

.lightbox-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent);
    display: block;
    margin-bottom: 1rem;
}

.lightbox-info h3 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 400;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.desc-text {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 2rem;
}

/* EXIF Data Array */
.exif-data {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    margin-top: 1rem;
}

.exif-item {
    display: flex;
    flex-direction: column;
}

.exif-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #666;
    margin-bottom: 0.2rem;
}

.exif-val {
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.close-lightbox {
    position: absolute;
    top: 2.5rem;
    right: 3.5rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 3rem;
    font-weight: 300;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
    z-index: 1001;
}

.close-lightbox:hover {
    color: var(--text-primary);
    transform: rotate(90deg) scale(1.1);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(5px);
    z-index: 1001;
}

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

.lightbox-nav.prev { left: 3vw; }
.lightbox-nav.next { right: 3vw; }

/* Footer */
.site-footer {
    text-align: center;
    padding: 4rem 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    margin-top: 3rem;
    background: rgba(13, 13, 15, 0.5);
}

.site-footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.site-footer a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: rgba(13, 13, 15, 0.85);
    color: var(--text-primary);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--text-primary);
    color: var(--bg-color);
}