body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1.5rem 0;
}

nav {
    background-color: #444;
    padding: 1rem;
    text-align: center;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 1rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

section {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h2 {
    border-bottom: 2px solid #333;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

ul {
    list-style-type: none;
    padding: 0;
}

ul li {
    margin-bottom: 0.5rem;
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: #333;
    color: white;
    margin-top: 2rem;
}