body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}
.header {
    background-color: #333333;
    color: white;
    text-align: center;
    padding: 15px 0 10px 0;
}
.header h1 {
    margin: 0;
    font-size: 22px;
}
.header p {
    margin: 5px 0 0 0;
    font-size: 11px;
    color: #ccc;
}
.navbar {
    background-color: #222222;
    text-align: center;
}
.main-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: inline-flex;
}
.main-menu > li {
    position: relative;
}
.main-menu > li > a {
    display: block;
    padding: 10px 25px;
    color: #ffff00;
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
}
.main-menu > li:hover > a {
    color: #ff0000;
}
.sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #555555;
    list-style: none;
    margin: 0;
    padding: 0;
    width: 130px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    z-index: 100;
}
.dropdown:hover .sub-menu {
    display: block;
}
.sub-menu li a {
    display: block;
    padding: 8px 12px;
    color: #ffff00;
    text-decoration: none;
    font-size: 12px;
    text-align: left;
    border-bottom: 1px dotted #777;
}
.sub-menu li a:hover {
    background-color: #444444;
    color: #ffffff;
}
.products-container {
    max-width: 900px;
    margin: 20px auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    padding: 0 10px;
}
.product-card {
    background-color: #ffffff;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    box-sizing: border-box;
}

.product-card img {
    width: 100%;
    height: 120px;
    object-fit: contain;
    margin-bottom: 10px;
}

.product-card h3 {
    font-size: 12px;
    margin: 5px 0;
    color: #333;
}

.product-card .price {
    font-size: 11px;
    color: #888;
    margin: 5px 0 10px 0;
}

.btn-add {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 6px 12px;
    font-size: 11px;
    border-radius: 4px;
    cursor: pointer;
}
.btn-add:hover {
    background-color: #25a440;
}