body {
    font-family: sans-serif;
    background: #f5f5f5 url('img/bg-tech.png') repeat;
    margin: 0;
    padding: 0;
}
header {
    background: #333;
    color: #fff;
    padding: 1rem;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 1rem;
}
nav a {
    color: white;
    text-decoration: none;
}
.kategoriak {
    display: flex;
    gap: 1rem;
    padding: 1rem;
}
.box {
    background: white;
    padding: 1rem;
    border: 1px solid #ccc;
    width: 30%;
    text-align: center;
}
.box img {
    width: 100%;
    height: auto;
}
footer {
    background: #222;
    color: #fff;
    padding: 1rem;
    margin-top: 2rem;
}