/* ==========================================================================
   FBFORMATIONS21 — styles communs (en-tête, pied de page, base)
   Les styles propres à chaque page restent dans la page elle-même.
   ========================================================================== */

:root {
  --fb-nuit: #1C2833;
  --fb-bleu: #17405A;
  --fb-ardoise: #2C3E50;
  --fb-orange: #D96F1E;
  --fb-rouge: #C0392B;
  --fb-gris: #F8F9FA;
  --fb-bord: #E8E6E0;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: #ffffff;
  color: var(--fb-nuit);
  font-family: 'Segoe UI', Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

img { max-width: 100%; height: auto; }
a { color: var(--fb-rouge); }

.fb-skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--fb-nuit); color: #fff; padding: 10px 16px; z-index: 1000;
}
.fb-skip:focus { left: 12px; top: 12px; }

/* ── EN-TÊTE ── */
.fb-header {
  position: sticky; top: 0; z-index: 900;
  background: var(--fb-nuit);
  border-bottom: 3px solid var(--fb-orange);
}
.fb-header-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 64px;
}
.fb-logo {
  color: #fff; text-decoration: none; font-weight: 800; font-size: 20px;
  letter-spacing: 0.5px; white-space: nowrap; line-height: 1;
}
.fb-logo span { color: var(--fb-orange); }
.fb-logo small {
  display: block; font-size: 10px; font-weight: 600; letter-spacing: 2px;
  text-transform: uppercase; color: rgba(255,255,255,0.5); margin-top: 4px;
}

.fb-nav { display: flex; align-items: center; gap: 2px; }
.fb-nav > a, .fb-nav-group > button {
  color: rgba(255,255,255,0.85); text-decoration: none; font-size: 14px; font-weight: 600;
  padding: 10px 12px; border-radius: 6px; background: none; border: none;
  font-family: inherit; cursor: pointer; display: inline-flex; align-items: center; gap: 4px;
}
.fb-nav > a:hover, .fb-nav-group > button:hover,
.fb-nav > a[aria-current="page"] { color: #fff; background: rgba(255,255,255,0.08); }
.fb-nav > a.fb-nav-cta {
  background: var(--fb-orange); color: #fff; margin-left: 6px; padding: 9px 16px;
}
.fb-nav > a.fb-nav-cta:hover { background: #B05A18; }

.fb-nav-group { position: relative; }
.fb-nav-group > button::after { content: '▾'; font-size: 11px; opacity: 0.7; }
.fb-nav-menu {
  display: none; position: absolute; top: 100%; left: 0; min-width: 240px;
  background: #fff; border: 1px solid var(--fb-bord); border-radius: 10px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.18); padding: 6px; margin-top: 4px;
}
.fb-nav-group:hover .fb-nav-menu,
.fb-nav-group:focus-within .fb-nav-menu,
.fb-nav-group.open .fb-nav-menu { display: block; }
.fb-nav-menu a {
  display: block; color: var(--fb-nuit); text-decoration: none; font-size: 14px;
  font-weight: 600; padding: 9px 12px; border-radius: 6px;
}
.fb-nav-menu a small { display: block; font-weight: 400; color: #888; font-size: 12px; }
.fb-nav-menu a:hover { background: var(--fb-gris); color: var(--fb-rouge); }

.fb-burger {
  display: none; background: none; border: 1px solid rgba(255,255,255,0.25);
  color: #fff; border-radius: 6px; padding: 8px 12px; font-size: 14px; font-weight: 600;
  font-family: inherit; cursor: pointer;
}

/* ── CONTENU ── */
.fb-main { max-width: 1160px; margin: 0 auto; padding: 28px 16px 24px; }

/* ── PIED DE PAGE ── */
.fb-footer { background: var(--fb-nuit); color: rgba(255,255,255,0.7); margin-top: 24px; }
.fb-footer-inner {
  max-width: 1160px; margin: 0 auto; padding: 40px 16px 24px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px;
}
.fb-footer h3 {
  color: #fff; font-size: 13px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; margin: 0 0 12px;
}
.fb-footer p { font-size: 13px; line-height: 1.8; margin: 0; }
.fb-footer ul { list-style: none; margin: 0; padding: 0; }
.fb-footer li { margin-bottom: 6px; }
.fb-footer a { color: rgba(255,255,255,0.75); text-decoration: none; font-size: 13px; }
.fb-footer a:hover { color: var(--fb-orange); }
.fb-footer-brand { font-weight: 800; color: #fff; font-size: 18px; margin-bottom: 8px; }
.fb-footer-brand span { color: var(--fb-orange); }
.fb-footer-bas {
  border-top: 1px solid rgba(255,255,255,0.08);
  max-width: 1160px; margin: 0 auto; padding: 16px;
  font-size: 12px; color: rgba(255,255,255,0.45);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px;
}
.fb-footer-bas a { font-size: 12px; color: rgba(255,255,255,0.55); }

/* ── RESPONSIVE ── */
@media (max-width: 980px) {
  .fb-burger { display: inline-block; }
  .fb-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--fb-nuit); flex-direction: column; align-items: stretch;
    padding: 8px 16px 16px; border-bottom: 3px solid var(--fb-orange);
    max-height: calc(100vh - 67px); overflow-y: auto;
  }
  .fb-header.menu-ouvert .fb-nav { display: flex; }
  .fb-nav > a, .fb-nav-group > button { width: 100%; justify-content: space-between; padding: 12px; }
  .fb-nav > a.fb-nav-cta { margin: 8px 0 0; justify-content: center; }
  .fb-nav-group:hover .fb-nav-menu { display: none; }
  .fb-nav-group.open .fb-nav-menu { display: block; }
  .fb-nav-menu {
    position: static; box-shadow: none; border: none; margin: 0 0 6px;
    background: rgba(255,255,255,0.05);
  }
  .fb-nav-menu a { color: rgba(255,255,255,0.85); }
  .fb-nav-menu a small { color: rgba(255,255,255,0.45); }
  .fb-nav-menu a:hover { background: rgba(255,255,255,0.08); color: #fff; }
  .fb-footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .fb-footer-inner { grid-template-columns: 1fr; }
  .fb-main { padding-top: 18px; }
}