body {
    margin: 0;
    padding: 2rem;
    background: #f6f6f6;
    color: #222;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

h1 {
    margin-bottom: 0.5rem;
}

.prototype-set {
    margin-bottom: 4rem;
}

.device-row {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

figure {
    margin: 0;
    background: white;
    padding: 1rem;
    border: 1px solid #ddd;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

figcaption {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: #555;
    text-align: center;
}