*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: 'Roboto', Arial, sans-serif; color: #1a1a2e; background: #fff; line-height: 1.7; }
    a { color: #1a6fc4; text-decoration: none; }
    a:hover { text-decoration: underline; }
    .hero { background: linear-gradient(135deg, #1a1a2e 60%, #16213e); color: #fff; text-align: center; padding: 72px 24px 56px; }
    .hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.2; margin-bottom: 16px; }
    .hero h1 span { color: #e8b400; }
    .hero p { font-size: 1.15rem; max-width: 640px; margin: 0 auto 32px; color: #c8d0e0; }
    .rating-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: 40px; padding: 8px 20px; margin-bottom: 32px; font-size: 0.95rem; }
    .stars { color: #e8b400; letter-spacing: 2px; }
    .btn-primary { display: inline-block; background: #e8b400; color: #1a1a2e; font-weight: 700; font-size: 1.05rem; padding: 14px 32px; border-radius: 8px; transition: background 0.2s; }
    .btn-primary:hover { background: #ffd000; text-decoration: none; }
    .btn-secondary { display: inline-block; border: 2px solid #fff; color: #fff; font-weight: 600; font-size: 1rem; padding: 12px 28px; border-radius: 8px; margin-left: 12px; transition: all 0.2s; }
    .btn-secondary:hover { background: rgba(255,255,255,0.1); text-decoration: none; }
    section { padding: 64px 24px; max-width: 900px; margin: 0 auto; }
    h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; margin-bottom: 20px; color: #1a1a2e; }
    h2 .accent { color: #1a6fc4; }
    p { margin-bottom: 16px; }
    .section-img { width: 100%; max-width: 700px; border-radius: 10px; margin: 20px auto; display: block; object-fit: cover; max-height: 380px; }
    .compare-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.95rem; }
    .compare-table th { background: #1a1a2e; color: #fff; padding: 12px 16px; text-align: left; }
    .compare-table td { padding: 12px 16px; border-bottom: 1px solid #e8eaf0; }
    .compare-table tr:nth-child(even) td { background: #f7f8fc; }
    .avantages-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 32px; }
    .avantage-card { border: 1px solid #e8eaf0; border-radius: 12px; padding: 24px; text-align: center; }
    .avantage-card .icon { font-size: 2rem; margin-bottom: 12px; }
    .avantage-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
    .avantage-card p { font-size: 0.9rem; color: #555; margin: 0; }
    .steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; margin-top: 32px; }
    .step-item { text-align: center; padding: 24px 16px; border: 1px solid #e8eaf0; border-radius: 12px; }
    .step-number { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 50%; background: #1a1a2e; color: #e8b400; font-size: 1.4rem; font-weight: 800; margin-bottom: 16px; }
    .step-item h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: #1a1a2e; }
    .step-item p { font-size: 0.9rem; color: #555; margin: 0; }
    .faq-section { background: #f7f8fc; padding: 64px 24px; }
    .faq-inner { max-width: 800px; margin: 0 auto; }
    .faq-item { border-bottom: 1px solid #dde; padding: 20px 0; }
    .faq-item h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 10px; color: #1a1a2e; }
    .faq-item p { font-size: 0.95rem; color: #444; margin: 0; }
    .cta-section { background: #1a1a2e; color: #fff; text-align: center; padding: 64px 24px; }
    .cta-section h2 { color: #fff; }
    .cta-section p { color: #c8d0e0; max-width: 560px; margin: 0 auto 32px; }
    footer { background: #111; color: #888; text-align: center; padding: 24px; font-size: 0.85rem; }
    footer a { color: #aaa; }
    .bg-alt { background: #f7f8fc; padding: 64px 24px; }
    .bg-alt-inner { max-width: 900px; margin: 0 auto; }
    .highlight-box { background: #e8f4ff; border-left: 4px solid #1a6fc4; border-radius: 8px; padding: 20px 24px; margin: 24px 0; }
    .highlight-box p { margin: 0; font-size: 1rem; color: #1a1a2e; }
    .price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-top: 24px; }
    .price-card { background: #fff; border: 2px solid #e8b400; border-radius: 12px; padding: 20px; text-align: center; }
    .price-card .route { font-weight: 700; color: #1a1a2e; font-size: 0.95rem; margin-bottom: 8px; }
    .price-card .price { font-size: 1.5rem; font-weight: 800; color: #e8b400; }
    .price-card .note { font-size: 0.8rem; color: #888; margin-top: 4px; }
    @media (max-width: 600px) { .btn-secondary { display: block; margin: 12px auto 0; width: fit-content; } }
/* Séminaire — formulaire grille */
.sem-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) {
  .sem-form-grid { grid-template-columns: 1fr; }
  #form-seminaire { padding: 20px 16px; }
}