body { font-family: Arial, sans-serif; margin:0; padding:0; background:#fafafa; color:#111; }
header { background:#111; color:#fff; padding:10px 20px; }
header nav a { color:#fff; margin-right:10px; text-decoration:none; }
main { padding:20px; max-width:980px; margin:0 auto; }
footer { text-align:center; padding:20px; color:#666; font-size:14px; }
form input[type="text"], form input[type="email"], form input[type="password"] { width:100%; padding:8px; margin:6px 0 12px; }
button { padding:8px 14px; background:#111; color:#fff; border:none; cursor:pointer; }