/* Simple style de base */
body { font-family: Arial, sans-serif; margin: 0; padding: 0; }
header, footer { background:#333; color:white; text-align:center; padding:1rem; }
nav ul { list-style:none; padding:0; display:flex; justify-content:center; gap:1rem; }
nav a { color:white; text-decoration:none; }
nav .active a { font-weight:bold; text-decoration:underline; }
main { padding:2rem; max-width:800px; margin:auto; }
label { display:block; margin-top:.5rem; }
input, textarea { width:100%; padding:.5rem; margin-top:.25rem; }
button { margin-top:1rem; padding:.75rem 1.5rem; }
.error { color:red; }
.success { color:green; }