body {
    font-family: sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

header {
    background: #333;
    color: #fff;
    padding: 1rem 0;
    text-align: center;
}

header h1 {
    margin: 0;
}

.main-content {
    padding: 20px;
    background: #fff;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.gallery img {
    width: 100%;
    height: auto;
    border-radius: 5px;
}

footer {
    text-align: center;
    padding: 20px;
    background: #333;
    color: #fff;
}

@media(max-width: 768px) {
    .container {
        width: 95%;
    }
}