body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #fff5f5;
}

header {
    background-color: #b30000;
    color: white;
    padding: 20px;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 10px;
    font-weight: bold;
}

nav a:hover {
    color: lightgreen;
}

main {
    padding: 20px;
}

h2 {
    color: #cc0000;
}

footer {
    background-color: #006600;
    color: white;
    text-align: center;
    padding: 10px;
}

.banner img {
    height: 500px;
    object-fit: cover;
}

.gioithieutongquan {
    padding: 40px 20px;
}

.noibat {
    padding: 40px 20px;
}

.noibat-container {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.box {
    width: 300px;
    background-color: #ffffff;
    border-radius: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    padding: 15px;
    transition: 0.3s;
}

.box img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 20px;
}

.box h3 {
    color: #006600;
    margin-top: 15px;
}

.box p {
    font-size: 14px;
}

.box a {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 15px;
    background-color: #b30000;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

.box a:hover {
    background-color: #006600;
}

.box:hover {
    transform: translateY(-10px);
}

html {
    scroll-behavior: smooth;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.gallery img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}