body { font-family: Arial, sans-serif; background: white; color: #202124; margin: 2rem; }
input { padding: 0.5rem; border: 1px solid #ccc; border-radius: 4px; }
button { background: #1a73e8; color: white; border: none; padding: 0.5rem 1rem; border-radius: 4px; cursor: pointer; }
button:hover { background: #1558b0; }
.alerte { color: #d93025; font-weight: bold; }
h2 { color: #1a73e8; }
h3 { color: #6200ea; }