* { box-sizing: border-box; }
body {
    margin: 0;
    background: #eee;
    font-family: Arial, sans-serif;
    font-size: 12px;
}
.shop-header {
    width: 650px;
    margin: 20px auto 0;
    padding: 8px;
    text-align: center;
    color: white;
    background: #303030;
}
.shop-header h1 {
    margin: 0;
    font-size: 22px;
}
.shop-header p { margin: 2px 0; }
.menu {
    width: 650px;
    margin: 0 auto;
    height: 30px;
    display: flex;
    justify-content: center;
    gap: 45px;
    background: #444;
}
.menu > a, .dropdown > a {
    display: block;
    padding: 8px 10px;
    color: yellow;
    text-decoration: none;
}
.dropdown {
    position: relative;
}
.dropdown-content {
    display: none;
    position: absolute;
    top: 30px;
    left: 0;
    width: 105px;
    background: #222;
    z-index: 10;
}
.dropdown-content a {
    display: block;
    padding: 5px;
    color: yellow;
    text-decoration: none;
    border-bottom: 1px dotted yellow;
}
.dropdown:hover .dropdown-content {
    display: block;
}
.products {
    width: 650px;
    margin: 0 auto;
    padding: 15px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    background: #f5f5f5;
}
.card {
    min-height: 175px;
    padding: 8px;
    text-align: center;
    background: white;
    border-radius: 5px;
    box-shadow: 0 1px 5px #ccc;
}
.card img {
    width: 100%;
    height: 100px;
    object-fit: contain;
}
.card b, .card span {
    display: block;
    margin: 4px 0;
}
.card span { color: #aaa; }
.card button {
    border: 0;
    padding: 5px 12px;
    background: #20b957;
    color: white;
    border-radius: 3px;
}