/* Reset cơ bản */
body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* Khung nội dung */
body > * {
    width: 100%;
    margin: auto;
}

/* Tiêu đề chính */
h1 {
    text-align: center;
    background-color: #ff9800;
    color: white;
    padding: 20px;
    margin-top: 0;
}

/* Các tiêu đề */
h2 {
    color: #ff9800;
    border-bottom: 2px solid #ff9800;
    padding-bottom: 5px;
    text-align: center;
}

h3 {
    color: #333;
}

#ndgioithieu{
    text-align: center;
    font-style:italic;
    font-weight: bold;
}

#cauchao{
    text-align: center;
    font-style:italic;
    font-weight: bold;
}

/* Menu */
ul {
    list-style-type: none;
    padding: 0;
    background-color: #333;
    overflow: hidden;
}

ul li {
    float: left;
}

ul li a {
    display: block;
    color: white;
    padding: 12px 16px;
    text-decoration: none;
}

ul li a:hover {
    background-color: #ff9800;
}

/* Sản phẩm */
.product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 20px 0;
}

/* Mỗi sản phẩm */
.product {
    background-color: white;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.product img {
    width: 100%;
    height: 200px;
    object-fit: contain;      /* HIỂN THỊ ĐẦY ĐỦ ẢNH */
    background-color: #f5f5f5; /* nền để không bị trống xấu */
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product:hover {
    transform: scale(1.05);              /* GIÃN RA */
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* Nút mua */
.product button {
    display: block;
    margin: 10px auto;
    padding: 10px 20px;
    background-color: #ff9800;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.product button:hover {
    background-color: #e68900;
}
/* Form đặt hàng */
form {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

input, select {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
}

input[type="submit"] {
    background-color: #4caf50;
    color: white;
    border: none;
    margin-top: 15px;
    cursor: pointer;
    padding: 10px;
    border-radius: 5px;
}

input[type="submit"]:hover {
    background-color: #45a049;
}

/* Footer */
hr + p {
    text-align: center;
    color: #777;
    font-size: 14px;
    margin-bottom: 20px;
}

/* Xóa float menu */
ul::after {
    content: "";
    display: block;
    clear: both;
}