/* --- Base & Typographie --- */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { 
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; 
    line-height: 1.6; 
    color: #333; 
    background-color: #f4f7f6; 
}

/* --- Header --- */
header { 
    background: #003366; 
    color: white; 
    padding: 3rem 1rem; 
    text-align: center; 
}
header h1 { margin-bottom: 10px; }

/* --- Mise en page générale --- */
.container { 
    max-width: 800px; 
    margin: 2rem auto; 
    padding: 20px; 
    background: white; 
    border-radius: 8px; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.1); 
}

/* --- Section Tarifs --- */
.tarifs {
    margin: 20px 0;
    padding: 20px;
    background: #eef2f7;
    border-left: 5px solid #003366;
}
.tarifs ul { list-style: none; }
.tarifs li { margin-bottom: 10px; font-weight: bold; }

/* --- Formulaire --- */
form { display: flex; flex-direction: column; gap: 15px; margin-top: 20px; }
label { font-weight: bold; display: block; margin-bottom: 5px; }
input, select, textarea { 
    width: 100%; 
    padding: 12px; 
    border: 1px solid #ccc; 
    border-radius: 4px; 
    font-size: 16px; 
}
textarea { height: 120px; resize: vertical; }

/* --- Bouton d'action --- */
button { 
    background: #e67e22; 
    color: white; 
    padding: 15px; 
    border: none; 
    border-radius: 4px; 
    cursor: pointer; 
    font-size: 18px; 
    font-weight: bold;
    transition: background 0.3s ease;
}
button:hover { background: #d35400; }

/* --- Pied de page --- */
footer { 
    text-align: center; 
    margin: 2rem 0; 
    font-size: 0.9rem; 
    color: #666; 
}
/* Navigation */
nav { display: flex; justify-content: space-between; padding: 20px; background: #002244; color: white; }
nav ul { display: flex; list-style: none; gap: 20px; }
nav a { color: white; text-decoration: none; font-weight: bold; }

/* Hero section */
.hero { text-align: center; padding: 60px 20px; color: white; }

/* Mise en page sections */
section { margin: 40px auto; }
h2 { text-align: center; margin-bottom: 20px; color: #003366; }

/* Footer */
footer { background: #333; color: white; padding: 30px; text-align: center; }

/* --- Mobile First --- */
@media (max-width: 600px) {
    .container { margin: 10px; padding: 15px; }
    header { padding: 2rem 1rem; }
}