:root {
    --bg-color: #0a0a0c;
    --card-bg: #16161a;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0ab;
    --accent: #c9a050; /* Soft Gold */
    --accent-glow: rgba(201, 160, 80, 0.3);
    --transition-speed: 0.4s;
    --border-radius: 16px;
    --container-width: 1200px;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 80px 0 60px;
    text-align: center;
    background: linear-gradient(to bottom, rgba(10, 10, 12, 0.8), transparent);
    animation: fadeInDown 1s ease-out;
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 10px;
}

.accent {
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* Filters */
.filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.filter-btn {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    padding: 10px 25px;
    border-radius: 30px;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    transition: all var(--transition-speed);
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent);
    transform: scale(1.05);
}

.filter-btn:active {
    transform: scale(0.95);
}

.filter-btn.active {
    background: var(--accent);
    color: var(--bg-color);
    border-color: var(--accent);
    box-shadow: 0 0 25px var(--accent-glow), inset 0 0 10px rgba(0,0,0,0.2);
    font-weight: 600;
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    padding-bottom: 80px;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    background: var(--card-bg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow var(--transition-speed);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) brightness(0.6);
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1),
                filter 0.6s ease;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.gallery-item:hover img {
    transform: scale(1.15);
    filter: grayscale(0%) brightness(1);
}

.overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    transform: translateY(100%);
    transition: transform var(--transition-speed) ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.overlay span {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
}

/* Filtering animation */
.gallery-item.hide {
    display: none;
}

.gallery-item.show {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#lightbox-img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 8px;
    box-shadow: 0 0 50px rgba(0,0,0,0.5);
    transform: scale(0.9);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.lightbox.active #lightbox-img {
    transform: scale(1);
}

.lightbox-info {
    width: 100%;
    margin-top: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    padding: 15px 25px;
    border-radius: 12px;
    backdrop-filter: blur(5px);
}

#lightbox-caption {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 500;
    margin: 0;
}

.download-btn-link {
    background: var(--accent);
    color: var(--bg-color);
    padding: 8px 18px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.download-btn-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--accent-glow);
}

/* Footer Styling */
.footer {
    padding: 60px 0;
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    gap: 25px;
}

.social-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--accent);
}

/* Controls */
.close-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    background: none;
    border: none;
    color: white;
    font-size: 3rem;
    cursor: pointer;
    z-index: 1001;
    transition: color 0.3s, transform 0.3s;
}

.close-btn:hover {
    color: var(--accent);
    transform: scale(1.1) rotate(90deg);
}

.nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: white;
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s;
    user-select: none;
    z-index: 1001;
}

.nav-btn:hover {
    background: var(--accent);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

.prev { left: 40px; }
.next { right: 40px; }

/* Responsive */
@media (max-width: 768px) {
    .nav-btn {
        width: 45px;
        height: 45px;
        font-size: 1.5rem;
    }
    .prev { left: 10px; }
    .next { right: 10px; }
    .close-btn { top: 15px; right: 20px; font-size: 2.5rem; }
    
    header { padding: 40px 0 20px; }
    .gallery-grid { gap: 15px; }
}