body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f5f5;
}

header {
    background: #000;
    padding: 10px 0;
}

header .container {
    width: 1200px;
    margin: auto;
    display: flex;
    align-items: center;
}

header img {
    height: 50px;
}

nav a {
    color: #fff;
    margin-left: 20px;
    text-decoration: none;
    font-weight: bold;
}

.container {
    width: 1200px;
    margin: 20px auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.card {
    background: #fff;
    padding: 15px;
    border-radius: 5px;
}

.card img {
    width: 100%;
    border-radius: 5px;
}

footer {
    background: #000;
    color: #fff;
    padding: 20px 0;
    margin-top: 40px;
    text-align: center;
}