body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: url('./hinh/bg1.jpg') no-repeat center center;
    background-size: cover;
}

header {
    background-color: #1e90ff;
    color: white;
    padding: 15px;
    text-align: center;
}

footer {
    text-align: center;
    padding: 10px;
    background: #222;
    color: white;
}

.intro {
    text-align: center;
    padding: 15px;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
}

.product {
    background: white;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.product img {
    width: 100%;
    height: 200px;
    object-fit: contain;
}

.price {
    color: red;
    font-weight: bold;
    font-size: 18px;
}

button {
    background-color: #1e90ff;
    color: white;
    border: none;
    padding: 10px;
    width: 100%;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #0b65c2;
}