/* BULDAM : cadre commun des pages publiques (en-tête, pied de page, bulle WhatsApp).
   Toutes les classes commencent par « sn- » pour ne pas heurter le style propre de chaque page.
   Les couleurs viennent des jetons de la page quand elle en définit (accueil, tarifs, mode sombre) ; sinon, valeurs de repli claires. */
.sn-top, .sn-footer, .sn-wa {
  --c-paper: var(--paper, #f6f4ee);
  --c-surface: var(--surface, #ffffff);
  --c-ink: var(--ink, #0e1a38);
  --c-muted: var(--muted, #566079);
  --c-line: var(--line, #ddd9cc);
  --c-navy: var(--navy, #0d2260);
  --c-accent: var(--accent, #1e40af);
  --c-amber: var(--amber, #e9a400);
  --c-on: var(--on-accent, #ffffff);
  --c-display: var(--display, "Source Serif 4", Georgia, serif);
  --c-body: var(--body, "Inter", "Segoe UI", system-ui, sans-serif);
  font-family: var(--c-body);
  box-sizing: border-box;
}
.sn-top *, .sn-footer *, .sn-wa * { box-sizing: border-box; }
.sn-wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- En-tête ---------- */
.sn-top { position: sticky; top: 0; z-index: 1000; background: color-mix(in srgb, var(--c-paper) 94%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--c-line); color: var(--c-ink); }
.sn-top .sn-wrap { display: flex; align-items: center; gap: 28px; min-height: 72px; }
.sn-logo { display: flex; align-items: center; gap: 10px; font: 700 1.4rem var(--c-display); color: var(--c-navy); text-decoration: none; letter-spacing: 0.01em; }
:root[data-theme="dark"] .sn-logo { color: var(--c-ink); }
.sn-logo img { width: 34px; height: 34px; display: block; }
.sn-nav { display: flex; align-items: center; gap: 22px; font-size: 0.95rem; font-weight: 500; }
.sn-nav a, .sn-more summary { text-decoration: none; color: var(--c-muted); padding: 6px 0; border-bottom: 2px solid transparent; cursor: pointer; }
.sn-nav a:hover, .sn-nav a[aria-current="page"], .sn-more summary:hover { color: var(--c-ink); border-color: var(--c-amber); }
.sn-more { position: relative; }
.sn-more summary { list-style: none; display: inline-flex; align-items: center; gap: 6px; }
.sn-more summary::-webkit-details-marker { display: none; }
.sn-more summary::after { content: ""; width: 6px; height: 6px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg) translateY(-2px); }
.sn-more-list { position: absolute; top: 100%; left: -14px; margin-top: 10px; min-width: 260px; padding: 8px; background: var(--c-surface); border: 1px solid var(--c-line); border-radius: 10px; box-shadow: 0 16px 36px -12px rgba(0, 0, 0, .25); display: grid; }
.sn-more-list a { padding: 10px 12px; border-radius: 6px; border: 0; color: var(--c-ink); }
.sn-more-list a:hover { background: color-mix(in srgb, var(--c-accent) 8%, transparent); }
.sn-nav-extra { display: none; }
.sn-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.sn-link { font-weight: 600; font-size: 0.95rem; text-decoration: none; color: var(--c-ink); }
.sn-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.sn-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 18px; border-radius: 8px; font: 600 0.95rem var(--c-body); text-decoration: none; border: 1.5px solid transparent; white-space: nowrap; background: var(--c-accent); color: var(--c-on); }
.sn-btn:hover { filter: brightness(1.12); }
.sn-menu-btn { display: none; width: 44px; height: 44px; border: 1.5px solid var(--c-line); border-radius: 8px; background: var(--c-surface); color: var(--c-ink); font-size: 1.3rem; cursor: pointer; }
.sn-top :focus-visible, .sn-footer :focus-visible, .sn-wa :focus-visible { outline: 3px solid var(--c-amber); outline-offset: 2px; }

/* ---------- Pied de page ---------- */
.sn-footer { background: var(--c-surface); border-top: 1px solid var(--c-line); margin-top: 72px; color: var(--c-ink); }
.sn-footer .sn-wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-top: 48px; padding-bottom: 28px; }
.sn-footer h4 { margin: 0 0 12px; font: 700 0.8rem var(--c-body); letter-spacing: 0.07em; text-transform: uppercase; color: var(--c-muted); }
.sn-footer ul { list-style: none; margin: 0; padding: 0; }
.sn-footer li { margin: 7px 0; }
.sn-footer a { color: var(--c-ink); text-decoration: none; font-size: 0.96rem; }
.sn-footer a:hover { text-decoration: underline; }
.sn-footer p { margin: 12px 0 0; color: var(--c-muted); font-size: 0.93rem; max-width: 24em; line-height: 1.6; }
.sn-legal { grid-column: 1 / -1; border-top: 1px solid var(--c-line); padding-top: 18px; color: var(--c-muted); font-size: 0.85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.sn-legal a { margin-left: 16px; font-size: 0.85rem; color: var(--c-muted); }

/* ---------- Bulle WhatsApp ---------- */
.sn-wa { position: fixed; bottom: 24px; right: 24px; z-index: 1100; display: flex; align-items: flex-end; gap: 12px; }
.sn-wa-bubble { background: var(--c-surface); color: var(--c-ink); border: 1px solid var(--c-line); border-radius: 16px; padding: 16px 18px; box-shadow: 0 12px 40px rgba(0, 0, 0, .2); max-width: 300px; display: none; }
.sn-wa-bubble header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; font-weight: 700; }
.sn-wa-bubble header button { background: none; border: 0; font-size: 1.3rem; cursor: pointer; color: var(--c-muted); }
.sn-wa-bubble p { margin: 0 0 12px; font-size: 0.9rem; color: var(--c-muted); }
.sn-wa-link { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; border-radius: 8px; background: #1fa855; color: #fff; text-decoration: none; font-weight: 700; }
.sn-wa-btn { background: transparent; width: 56px; height: 56px; padding: 0; border: 0; border-radius: 50%; box-shadow: 0 4px 20px rgba(37, 211, 102, .4); cursor: pointer; display: flex; align-items: center; justify-content: center; }

@media (max-width: 1020px) {
  .sn-menu-btn { display: inline-grid; place-items: center; }
  .sn-nav { display: none; position: absolute; left: 0; right: 0; top: 72px; background: var(--c-paper); border-bottom: 1px solid var(--c-line); padding: 8px 24px 16px; flex-direction: column; align-items: stretch; gap: 0; max-height: calc(100vh - 72px); overflow-y: auto; }
  .sn-nav.open { display: flex; }
  .sn-nav a, .sn-more summary { padding: 14px 0; border-bottom: 1px solid var(--c-line); display: flex; }
  .sn-more-list { position: static; margin: 0; padding: 0 0 0 14px; border: 0; box-shadow: none; background: none; min-width: 0; }
  .sn-more-list a { padding: 12px 0; border-radius: 0; border-bottom: 1px solid var(--c-line); }
  .sn-footer .sn-wrap { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .sn-wrap { padding: 0 18px; }
  .sn-top .sn-wrap { gap: 12px; }
  /* Téléphone : « Se connecter » reste visible dans l'en-tête (bouton), la démo passe dans le menu */
  .sn-logo { flex-shrink: 0; }
  .sn-actions .sn-link { display: inline-flex; align-items: center; min-height: 42px; padding: 0 14px; border: 1.5px solid var(--c-line); border-radius: 8px; background: var(--c-surface); font-size: 0.92rem; white-space: nowrap; }
  .sn-actions .sn-btn { display: none; }
  .sn-nav .sn-nav-extra { display: flex; font-weight: 700; color: var(--c-accent); }
  .sn-footer .sn-wrap { grid-template-columns: 1fr; }
  .sn-wa { bottom: 16px; right: 16px; }
}