@import url("fonts.css");

/* Infogestion Brion — feuille commune (accueil + ressources)
   Palette issue de la charte : rouge du logo, ardoise du lettrage. */
:root {
  --encre: #2B2D36;
  --ardoise: #494B57;
  --gris: #6E707C;
  --gris-clair: #A3A4AD;
  --papier: #F6F6F4;
  --papier-2: #ECECE8;
  --blanc: #FFFFFF;
  --ligne: #DEDED8;
  --rouge: #E3494E;
  --rouge-fonce: #C4474B;
  --rouge-texte: #B23A3F;
  --vert: #3F6B4F;

  --titre: "Barlow Condensed", "Arial Narrow", sans-serif;
  --texte: "Barlow", "Helvetica Neue", Arial, sans-serif;

  --marge: clamp(16px, 4vw, 56px);
  --largeur: 1180px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--papier);
  color: var(--encre);
  font: 400 17px/1.6 var(--texte);
  font-feature-settings: "kern", "liga";
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
::selection { background: var(--rouge); color: #fff; }
:focus-visible { outline: 2px solid var(--rouge); outline-offset: 3px; }

.sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.chiffres { font-variant-numeric: tabular-nums lining-nums; }
.saut { position: absolute; left: -999px; top: 8px; background: var(--encre); color: #fff; padding: 8px 14px; z-index: 50; }
.saut:focus { left: 8px; }

.cadre { width: 100%; max-width: calc(var(--largeur) + 2 * var(--marge)); margin: 0 auto; padding: 0 var(--marge); }

/* ---------- En-tête ---------- */
.entete {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--papier) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ligne);
}
.entete .cadre { display: flex; align-items: center; gap: 24px; height: 68px; }
.entete .logo img { height: 26px; width: auto; }
.nav { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.nav a {
  font: 500 15px/1 var(--texte); text-decoration: none; color: var(--ardoise);
  padding: 10px 12px; border-radius: 2px;
}
.nav a:hover { color: var(--encre); background: var(--papier-2); }
.nav a[aria-current="page"] { color: var(--encre); box-shadow: inset 0 -2px 0 var(--rouge); }
.nav .tel {
  margin-left: 8px; color: #fff; background: var(--encre);
  padding: 11px 16px; letter-spacing: .02em;
}
.nav .tel:hover { background: var(--rouge-fonce); color: #fff; }
.menu-btn { display: none; }

@media (max-width: 860px) {
  .menu-btn {
    display: inline-flex; margin-left: auto; align-items: center; gap: 8px;
    background: none; border: 1px solid var(--ligne); padding: 9px 12px; font: 500 15px var(--texte); color: var(--encre);
  }
  .nav {
    position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--papier); border-bottom: 1px solid var(--ligne); padding: 8px var(--marge) 16px; display: none;
  }
  .nav.ouvert { display: flex; }
  .nav a { padding: 14px 4px; border-bottom: 1px solid var(--ligne); }
  .nav .tel { margin: 12px 0 0; text-align: center; }
}

.folio {
  display: flex; align-items: baseline; gap: 14px;
  font: 600 14px/1 var(--titre); letter-spacing: .14em; text-transform: uppercase; color: var(--rouge-texte);
  margin: 0 0 18px;
}
.folio span { font-variant-numeric: tabular-nums; color: var(--gris); letter-spacing: .06em; }
.folio::after { content: ""; flex: 1; height: 1px; background: var(--ligne); }

h1, h2, h3 { font-family: var(--titre); font-weight: 600; line-height: 1.02; letter-spacing: -.005em; margin: 0; text-wrap: balance; }
h2 { font-size: clamp(34px, 4.6vw, 54px); }
h3 { font-size: 24px; line-height: 1.15; }
.chapo { font: 400 clamp(18px, 1.8vw, 21px)/1.55 var(--texte); color: var(--gris); max-width: 38em; }

section { padding: clamp(64px, 9vw, 112px) 0; }
section + section { border-top: 1px solid var(--ligne); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font: 600 16px/1 var(--texte); text-decoration: none; letter-spacing: .01em;
  padding: 16px 22px; border: 1px solid var(--encre); color: var(--encre); background: transparent; cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.btn:hover { background: var(--encre); color: #fff; }
.btn.plein { background: var(--rouge-fonce); border-color: var(--rouge-fonce); color: #fff; }
.btn.plein:hover { background: var(--encre); border-color: var(--encre); }
.btn svg { width: 18px; height: 18px; }

/* ---------- Pied de page ---------- */
.pied { background: var(--encre); color: #C9CAD1; font-size: 15px; padding: 64px 0 28px; }
.pied a { color: #fff; text-decoration-color: rgba(255,255,255,.3); text-underline-offset: 3px; }
.pied a:hover { text-decoration-color: var(--rouge); }
.pied-grille { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 40px; }
.pied h4 { font: 600 13px/1 var(--titre); letter-spacing: .16em; text-transform: uppercase; color: var(--gris-clair); margin: 0 0 16px; }
.pied ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.pied .logo-pied { height: 28px; width: auto; margin-bottom: 18px; }
.pied p { margin: 0 0 6px; }
.pied-bas {
  margin-top: 48px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; font-size: 13px; color: var(--gris-clair);
}
.pied details { margin-top: 40px; border-top: 1px solid rgba(255,255,255,.12); }
.pied summary {
  cursor: pointer; padding: 18px 0; font: 600 15px/1 var(--titre); letter-spacing: .12em; text-transform: uppercase; color: #fff;
  list-style: none; display: flex; justify-content: space-between;
}
.pied summary::-webkit-details-marker { display: none; }
.pied summary::after { content: "+"; font-size: 22px; line-height: .6; color: var(--rouge); }
.pied details[open] summary::after { content: "–"; }
.texte-legal { columns: 2 340px; column-gap: 48px; font-size: 14px; line-height: 1.6; color: #B9BAC2; padding-bottom: 12px; }
.texte-legal h5 { font: 600 13px/1.3 var(--titre); letter-spacing: .1em; text-transform: uppercase; color: #fff; margin: 18px 0 6px; break-after: avoid; }
.texte-legal p, .texte-legal ul { margin: 0 0 10px; }
.texte-legal ul { padding-left: 18px; }
@media (max-width: 900px) { .pied-grille { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .pied-grille { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }