body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f9f9f9; color: #333; }
header, footer { background: #004080; color: white; padding: 1em; text-align: center; }
main { padding: 2em; }
h1, h2 { margin: 0.5em 0; }
button { background: #007bff; color: white; padding: 0.5em 1em; border: none; border-radius: 5px; cursor: pointer; }
button:hover { background: #0056b3; }
form { margin-top: 1em; }