* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', sans-serif; line-height: 1.6; color: #333; }
nav { background: #1e3a8a; color: white; padding: 1rem 2rem; display: flex; justify-content: space-between; }
nav ul { display: flex; list-style: none; gap: 2rem; }
nav a { color: white; text-decoration: none; }
header { text-align: center; padding: 4rem 2rem; background: linear-gradient(135deg, #1e3a8a, #3b82f6); color: white; }
.btn { background: #f59e0b; color: white; padding: 1rem 2rem; text-decoration: none; border-radius: 5px; display: inline-block; }
.produits { max-width: 1200px; margin: 2rem auto; padding: 0 2rem; }
.produit { background: white; border-radius: 10px; padding: 2rem; margin: 1rem 0; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
.prix { font-size: 1.5rem; color: #f59e0b; font-weight: bold; }
form { max-width: 600px; margin: 2rem auto; }
input, textarea, button { width: 100%; padding: 1rem; margin: 0.5rem 0; border: 1px solid #ddd; border-radius: 5px; }