body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f4f6f8;
    color: #333;
}

header {
    background: #1f2937;
    color: #fff;
    padding: 30px 20px;
    text-align: center;
}

nav a {
    color: #fff;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}

section {
    max-width: 1000px;
    margin: 40px auto;
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

h1, h2 {
    color: #1f2937;
}

footer {
    background: #111827;
    color: #bbb;
    text-align: center;
    padding: 20px;
    font-size: 14px;
}