body {
    font-family: sans-serif;
    text-align: center;
    background: #111;
    color: #fff;
    margin: 0;
    padding: 20px;
}

img {
    max-width: 90%;
    max-height: 70vh;
    border-radius: 8px;
    margin-bottom: 15px;
}

.thumbs {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.thumbs img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    cursor: pointer;
    opacity: 0.6;
    border-radius: 4px;
}

.thumbs img.active {
    opacity: 1;
    border: 2px solid #fff;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    margin: 0 10px;
}