body {font-family: Arial, sans-serif;margin: 0;padding: 0;background: #f8f9fa;color: #333;}
header {background: #20232a;color: white;padding: 20px 0;text-align: center;}
header h1 {margin: 0;}
nav {margin-top: 10px;}
nav a {color: #61dafb;text-decoration: none;margin: 0 15px;font-weight: bold;}
nav a:hover {text-decoration: underline;}
.container {max-width: 1000px;margin: 20px auto;padding: 20px;background: white;box-shadow: 0 0 10px rgba(0,0,0,0.1);}
h2 {color: #20232a;}
footer {background: #20232a;color: #ccc;text-align: center;padding: 15px 0;margin-top: 20px;}