body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f7f7f7;
}

h1 {
    text-align: center;
    padding: 20px;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    grid-auto-rows: 200px;
    grid-auto-flow: dense;
    gap: 10px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 10px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    margin: 5;
}

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

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

.gallery-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Taşmadan doldursun */
    display: block;
}

/* Statik boyut sınıfları */
.wide {
    grid-column: span 2;
}

.tall {
    grid-row: span 2;
}

.big {
    grid-column: span 2;
    grid-row: span 2;
}