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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #000;
    color: #fff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1.5rem 2rem;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 100;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.gallery {
    columns: 4 300px;
    column-gap: 0;
    padding-top: 5rem;
    flex: 1;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    background: #111;
    break-inside: avoid;
    margin-bottom: 0;
}

.gallery-item a {
    display: block;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.lightbox:target {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: #fff;
    font-size: 3rem;
    text-decoration: none;
    line-height: 1;
    font-weight: 300;
    transition: opacity 0.2s;
}

.lightbox-close:hover {
    opacity: 0.7;
}

footer {
    padding: 2rem;
    text-align: center;
    background: #000;
    margin-top: auto;
}

footer p {
    margin: 0;
    font-size: 0.875rem;
    color: #666;
}

footer a {
    color: #999;
    text-decoration: none;
    transition: color 0.2s;
}

footer a:hover {
    color: #fff;
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .gallery {
        columns: 3 250px;
    }
}

@media (max-width: 768px) {
    .gallery {
        columns: 2 200px;
        padding-top: 4rem;
    }

    header {
        padding: 1rem 1.5rem;
    }

    header h1 {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .gallery {
        columns: 1;
    }
}