* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background-color: #f5f5f5;
}

/* Header */
header {
    background-color: #0d6efd;
    color: white;
    padding: 20px;
    text-align: center;
}

/* Container */
.container {
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 40px;
}

/* Thông tin sản phẩm */
.product-info {
    background-color: white;
    width: 300px;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.product-info img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    margin-bottom: 15px;
}

.product-info h2 {
    font-size: 18px;
    margin-bottom: 10px;
}

.price {
    color: #e63946;
    font-size: 18px;
    font-weight: bold;
}

/* Form đặt hàng */
.order-form {
    background-color: white;
    width: 350px;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.order-form h3 {
    margin-bottom: 20px;
}

.order-form label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
}

.order-form input,
.order-form select {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

.order-form button {
    width: 100%;
    padding: 12px;
    background-color: #0d6efd;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
}

.order-form button:hover {
    background-color: #084298;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
        align-items: center;
    }
}