/* Rouault Acoustic – feuille de style commune (remplace stylecss1.css)
   Polices système : aucun appel à un serveur externe.
   Pour changer l'ambiance, modifier les variables ci-dessous. */

:root {
  color-scheme: dark;
  --encre: #101419;
  --graphite: #171d24;
  --acier: #1f2730;
  --filet: #2a343f;
  --filet-fort: #44515f;
  --ivoire: #ece8df;
  --texte: #c9cfd6;
  --brume: #9aa3ae;
  --laiton: #d4b072;
  --laiton-clair: #e3c18a;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --acc: 212 176 114;           /* couleur d'accent de la page (rvb) */
  --rayon: 14px;
  --largeur: 1120px;
}
.acc-rouge, .acc-bleu, .acc-vert, .acc-laiton, .acc-bois { --acc: 212 176 114; }   /* une seule couleur d'accent sur tout le site */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background-color: var(--encre);
  background-image:
    radial-gradient(60% 480px at 92% 0, rgb(43 122 156 / .22), transparent 70%),
    radial-gradient(45% 520px at 0 38%, rgb(43 122 156 / .12), transparent 70%),
    radial-gradient(55% 520px at 100% 78%, rgb(43 122 156 / .10), transparent 70%);
  background-repeat: no-repeat;
  color: var(--texte);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; border: 0; }
a { color: var(--laiton); text-decoration: none; }
a:hover { color: var(--laiton-clair); text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--laiton); outline-offset: 3px; border-radius: 4px;
}
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 400; color: var(--ivoire); letter-spacing: -0.01em; margin: 0; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); line-height: 1.1; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); line-height: 1.15; margin-bottom: 1rem; }
h3 { font-size: 1.35rem; line-height: 1.25; margin-bottom: .5rem; }
p { margin: 0 0 1.1em; }
strong { color: var(--ivoire); font-weight: 600; }

.wrap { width: min(var(--largeur), 100% - 2.5rem); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 0; background: var(--laiton); color: var(--encre); padding: .6rem 1rem; z-index: 50; }
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- En-tête ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(16, 20, 25, .92);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--filet);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 100px; gap: 1rem; }
.marque { display: inline-flex; align-items: center; gap: .9rem; font-family: var(--serif); font-size: 2.35rem; letter-spacing: .01em; color: var(--ivoire); }
.marque:hover { color: var(--ivoire); text-decoration: none; }
.marque img { height: 68px; width: auto; flex: none; }
.logo-pied { display: block; width: 130px; height: auto; margin-bottom: 1rem; opacity: .92; }
.nav { display: flex; align-items: center; gap: 1.6rem; font-size: .97rem; }
.nav { gap: .5rem; font-size: 1rem; }
.nav a { color: #c9d0d8; padding: .55rem 1.15rem; border: 1px solid var(--filet-fort); border-radius: 999px; background: rgb(255 255 255 / .03); transition: background .2s, border-color .2s, color .2s; }
.nav a:hover { color: var(--ivoire); border-color: var(--laiton); background: rgb(212 176 114 / .12); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--ivoire); border-color: var(--laiton); background: rgb(212 176 114 / .18); }
.menu-btn { display: none; background: none; border: 1px solid var(--filet-fort); color: var(--ivoire); border-radius: 10px; padding: .5rem .7rem; cursor: pointer; font: inherit; line-height: 1; }
.menu-btn span { display: block; width: 20px; height: 2px; background: currentColor; margin: 4px 0; }

/* ---------- Boutons ---------- */
.actions { display: flex; flex-wrap: wrap; gap: .85rem; }
.btn {
  display: inline-block; padding: .85rem 1.7rem; border-radius: 999px; font-weight: 600; font-size: .97rem;
  background: var(--laiton); color: var(--encre); border: 1px solid var(--laiton);
  transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.btn:hover { background: var(--laiton-clair); border-color: var(--laiton-clair); color: var(--encre); text-decoration: none; transform: translateY(-2px); }

/* ---------- Mise en page générale ---------- */
section.zone { padding: clamp(3rem, 7vw, 5.5rem) 0; }
section.zone.fond { background: var(--graphite); border-block: 1px solid var(--filet); }
.intro { color: var(--brume); max-width: 40rem; margin: 0 0 2.5rem; font-size: 1.1rem; }

/* ---------- Accueil : en-tête visuel ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(3rem, 7vw, 5rem);
  background:
    radial-gradient(70% 85% at 82% 48%, rgb(43 122 156 / .50), transparent 72%),
    radial-gradient(40% 50% at 8% 8%, rgb(212 176 114 / .13), transparent 70%);
}
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 2.5rem; align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 5.6vw, 4.2rem); margin-bottom: 1.3rem; }
.hero p.lead { color: #b9c1ca; font-size: 1.15rem; max-width: 33rem; margin: 0 0 2rem; }
.puces { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1.8rem; padding: 0; list-style: none; }
.puces li { font-size: .9rem; padding: .25rem .85rem; border: 1px solid var(--filet-fort); border-radius: 999px; color: var(--brume); background: rgb(16 20 25 / .5); }
.trio { display: flex; align-items: flex-end; justify-content: center; gap: clamp(.4rem, 2vw, 1.4rem); position: relative; padding-bottom: 1.6rem; }
.trio::after { content: ""; position: absolute; left: 4%; right: 4%; bottom: .5rem; height: 22px; border-radius: 50%; background: radial-gradient(closest-side, rgb(0 0 0 / .6), transparent); filter: blur(5px); }
.trio a { position: relative; z-index: 1; display: block; }
.trio img { display: block; width: auto; height: auto; filter: drop-shadow(0 18px 20px rgb(0 0 0 / .55)) drop-shadow(0 0 24px rgb(0 0 0 / .4)); transition: transform .4s; }
.trio a:hover img { transform: translateY(-4px); }
.trio .t1 img { max-height: 340px; }
.trio .t2 img { max-height: 430px; }
.trio .t3 img { max-height: 340px; }

/* ---------- Trois cartes ---------- */
.trois { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.carte { background: var(--graphite); border: 1px solid var(--filet); border-top: 4px solid rgb(var(--acc)); border-radius: var(--rayon); padding: 1.6rem; }
section.fond .carte { background: var(--encre); }
.carte p { margin: 0; color: var(--brume); }

/* ---------- Grille de produits (accueil et catalogues) ---------- */
.filtres { display: flex; flex-wrap: wrap; gap: .55rem; margin-bottom: 2rem; }
.filtres button { font: inherit; font-size: .93rem; color: var(--brume); background: transparent; border: 1px solid var(--filet); border-radius: 999px; padding: .4rem 1.1rem; cursor: pointer; }
.filtres button:hover { color: var(--ivoire); border-color: var(--filet-fort); }
.filtres button[aria-pressed="true"] { background: var(--ivoire); color: var(--encre); border-color: var(--ivoire); }
.grille { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1.25rem; }
.grille.large { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.produit { display: flex; flex-direction: column; background: var(--graphite); border: 1px solid var(--filet); border-radius: var(--rayon); overflow: hidden; color: var(--texte); transition: transform .25s, border-color .25s; }
section.fond .produit { background: var(--encre); }
.produit:hover { transform: translateY(-4px); border-color: rgb(var(--acc)); text-decoration: none; color: var(--texte); }
.produit .vue {
  height: 320px; display: flex; align-items: center; justify-content: center; padding: 1.1rem 1rem 1.4rem; overflow: hidden;
  background: var(--acier); position: relative;
}
.produit .vue::after { content: ""; position: absolute; left: 22%; right: 22%; bottom: .9rem; height: 16px; border-radius: 50%; background: radial-gradient(closest-side, rgb(0 0 0 / .6), transparent); filter: blur(4px); }
.grille.large .produit .vue { height: 280px; }
.produit .vue img { max-height: 100%; max-width: 100%; width: auto; height: auto; object-fit: contain; position: relative; z-index: 1; filter: drop-shadow(0 12px 12px rgb(0 0 0 / .5)) drop-shadow(0 0 22px rgb(0 0 0 / .45)); }
.produit .texte { padding: 1.1rem 1.25rem 1.3rem; display: flex; flex-direction: column; gap: .15rem; flex: 1; }
.produit .nom { font-family: var(--serif); font-size: 1.35rem; line-height: 1.2; color: var(--ivoire); }
.produit .type { color: var(--brume); font-size: .93rem; }
.produit .prix { margin-top: auto; padding-top: .8rem; color: var(--laiton); font-weight: 600; }
.produit .prix small { color: var(--brume); font-weight: 400; font-size: .88rem; }
.produit .badge { align-self: flex-start; margin-top: .5rem; font-size: .8rem; color: var(--brume); border: 1px solid var(--filet-fort); border-radius: 999px; padding: .1rem .7rem; }
.note { color: var(--brume); font-size: .92rem; }

/* ---------- Comprendre / étapes / services ---------- */
.familles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
.famille { padding: 1.6rem; border-radius: var(--rayon); background: var(--encre); border: 1px solid var(--filet); border-left: 4px solid rgb(var(--acc)); }
.famille p { margin: 0; color: #b9c1ca; }
.famille .exemple { margin-top: .9rem; font-size: .93rem; color: rgb(var(--acc)); filter: brightness(1.5); }
.etapes { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; counter-reset: e; }
.etapes li { counter-increment: e; padding: 1.4rem; border: 1px solid var(--filet); border-radius: var(--rayon); background: var(--graphite); }
.etapes li::before { content: counter(e); display: grid; place-items: center; width: 2.2rem; height: 2.2rem; border-radius: 50%; background: var(--laiton); color: var(--encre); font-weight: 700; margin-bottom: 1rem; }
.etapes h3 { font-size: 1.2rem; }
.etapes p { margin: 0; color: var(--brume); font-size: .97rem; }
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.teintes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.teinte { text-align: center; font-size: .9rem; color: var(--brume); }
.teinte i { display: block; aspect-ratio: 1; border-radius: 50%; margin: 0 auto .5rem; width: 100%; max-width: 92px; background: radial-gradient(circle at 30% 28%, rgb(255 255 255 / .55), rgb(255 255 255 / 0) 38%), var(--t); box-shadow: 0 10px 18px rgb(0 0 0 / .4), inset 0 -8px 14px rgb(0 0 0 / .28); }
.services { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: .9rem 1.5rem; }
.services li { padding: .9rem 1.1rem; border: 1px solid var(--filet); border-radius: 12px; background: var(--encre); }

/* ---------- Pages intérieures : bandeau de titre ---------- */
.page-hero {
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(1.5rem, 4vw, 2.5rem);
  background: radial-gradient(55% 120% at 82% 0%, rgb(43 122 156 / .26), transparent 70%);
  border-bottom: 1px solid var(--filet);
}
.fil { font-size: .9rem; color: var(--brume); margin-bottom: 1rem; }
.fil a { color: var(--brume); }
.fil a:hover { color: var(--ivoire); }
.fil span { margin: 0 .45rem; opacity: .6; }
.page-hero h1 { max-width: 22ch; }
.page-hero .chips { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.2rem; }
.chip { display: inline-block; padding: .3rem .95rem; border-radius: 999px; border: 1px solid rgb(var(--acc) / .7); color: var(--ivoire); font-size: .95rem; background: rgb(var(--acc) / .14); }

/* ---------- Fiches produit : blocs texte + photo ---------- */
.contenu { padding: clamp(2rem, 5vw, 4rem) 0 clamp(2rem, 5vw, 3.5rem); }
.lead { font-size: 1.15rem; color: #b9c1ca; max-width: 46rem; margin-bottom: 2.5rem; }
.bloc { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(1.5rem, 5vw, 4rem); align-items: center; margin-bottom: clamp(2.5rem, 6vw, 4.5rem); }
.bloc.img-first { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); }
.bloc.seul { grid-template-columns: minmax(0, 1fr); }
.bloc.seul .prose { max-width: 46rem; margin-inline: auto; }
.prose { max-width: 62ch; }
.prose p { color: var(--texte); }
.prose h2, .prose h3 { margin: 1.4em 0 .5em; }
.prose h2:first-child, .prose h3:first-child { margin-top: 0; }
.prose h2 { font-size: 1.6rem; }
.prose h3 { font-size: 1.25rem; color: var(--laiton); font-family: var(--sans); font-weight: 600; letter-spacing: 0; }
.prose ul { padding-left: 1.2rem; margin: 0 0 1.1em; }
.prose li { margin-bottom: .35em; }
.prose p.prix { color: var(--laiton); font-weight: 600; font-size: 1.1rem; }
.media { display: grid; gap: 1rem; justify-items: center; }
.photo { margin: 0; position: relative; width: 100%; display: grid; place-items: center; padding: 1.5rem 1rem 2.4rem;
  background: var(--acier); border-radius: var(--rayon); }
.photo::after { content: ""; position: absolute; left: 20%; right: 20%; bottom: 1.1rem; height: 16px; border-radius: 50%; background: radial-gradient(closest-side, rgb(0 0 0 / .55), transparent); filter: blur(4px); }
.photo img { position: relative; z-index: 1; width: auto; height: auto; max-width: 100%; max-height: 600px; filter: drop-shadow(0 16px 16px rgb(0 0 0 / .5)) drop-shadow(0 0 26px rgb(0 0 0 / .45)); }
.photo.plate img { filter: none; border-radius: 10px; }
.photo.plate::after { display: none; }

/* ---------- Fiche technique ---------- */
.fiche { background: var(--graphite); border: 1px solid var(--filet); border-left: 4px solid rgb(var(--acc)); border-radius: var(--rayon); padding: 1.6rem 1.8rem; margin: 0 0 2rem; max-width: 46rem; }
.fiche h2 { font-size: 1.5rem; margin-bottom: 1rem; }
.fiche dl { margin: 0; }
.fiche .row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 1rem; padding: .55rem 0; border-top: 1px solid var(--filet); }
.fiche .row:first-child { border-top: 0; }
.fiche dt { color: var(--brume); }
.fiche dd { margin: 0; color: var(--ivoire); }
.fiche .row.prix dd, .fiche .row.prix dt { color: var(--laiton); font-weight: 600; }
.fiche .row.prix strong { color: inherit; }
.fiche .sub { padding: .8rem 0 .2rem; border-top: 1px solid var(--filet); color: var(--ivoire); font-weight: 600; }
.fiche .sub:first-child { border-top: 0; }
.fiche .ligne { padding: .3rem 0; color: var(--ivoire); }
.prose .fiche { max-width: none; }

/* ---------- Appel à l'action ---------- */
.appel { text-align: center; padding: clamp(3rem, 7vw, 5rem) 0; background: radial-gradient(55% 90% at 50% 0%, rgb(43 122 156 / .22), transparent 75%); border-top: 1px solid var(--filet); }
.appel h2 { max-width: 22ch; margin-inline: auto; }
.appel p { color: #b9c1ca; max-width: 32rem; margin: 0 auto 2rem; }
.appel .actions { justify-content: center; }

/* ---------- Pages simples ---------- */
.texte-page { max-width: 46rem; }
.texte-page h2 { font-size: 1.5rem; margin: 2em 0 .6em; }
.texte-page h2:first-child { margin-top: 0; }
.texte-page ul { padding-left: 1.2rem; }
.cartes-contact { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.cartes-contact .carte h2 { font-size: 1.25rem; font-family: var(--sans); font-weight: 600; color: var(--laiton); margin-bottom: .7rem; }
.cartes-contact .carte p { color: var(--texte); }
.cartes-contact .grand { font-family: var(--serif); font-size: 1.35rem; color: var(--ivoire); }
.plan { margin: 0; }
.plan img { width: 100%; height: auto; border-radius: var(--rayon); border: 1px solid var(--filet); background: var(--graphite); }

/* ---------- Réalisations ---------- */
.produit.realisation .vue { height: 300px; }

/* ---------- Pied de page ---------- */
.site-footer { border-top: 1px solid var(--filet); background: var(--graphite); padding: 2.5rem 0 2rem; color: var(--brume); font-size: .95rem; }
.site-footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
.site-footer h2 { font-family: var(--sans); font-size: .95rem; font-weight: 600; color: var(--ivoire); margin-bottom: .7rem; letter-spacing: 0; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: .35rem; }
.site-footer a { color: var(--brume); }
.site-footer a:hover { color: var(--ivoire); }
.site-footer p { margin: 0 0 .5rem; }
.site-footer .bas { grid-column: 1 / -1; border-top: 1px solid var(--filet); padding-top: 1.2rem; margin-top: .5rem; font-size: .88rem; }

/* ---------- Écrans étroits ---------- */
@media (max-width: 900px) {
  .etapes { grid-template-columns: repeat(2, 1fr); }
  .nav { gap: 1.1rem; font-size: .92rem; }
}
@media (max-width: 820px) {
  .menu-btn { display: block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 0; background: var(--encre); border-bottom: 1px solid var(--filet); padding: .5rem 1.25rem 1rem; font-size: 1.05rem; }
  .nav a { padding: .85rem 1.1rem; margin-bottom: .45rem; text-align: center; }
  .marque { font-size: 1.6rem; } .marque img { height: 46px; }
  .site-header .wrap { min-height: 74px; }
  .site-header.ouvert .nav { display: flex; }
}
@media (max-width: 760px) {
  .hero .wrap, .duo, .bloc, .bloc.img-first { grid-template-columns: 1fr; }
  .bloc .media { order: -1; }
  .trio .t1 img { max-height: 230px; } .trio .t2 img { max-height: 290px; } .trio .t3 img { max-height: 200px; }
  .trois, .familles, .services { grid-template-columns: 1fr; }
  .etapes { grid-template-columns: 1fr; }
  .site-footer .wrap { grid-template-columns: 1fr; }
  .fiche { padding: 1.3rem 1.2rem; }
  .fiche .row { grid-template-columns: 1fr; gap: .1rem; }
  .photo img { max-height: 460px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .produit, .btn, .trio img { transition: none; }
  .produit:hover, .trio a:hover img { transform: none; }
}


/* ---------- Accueil : sections sans couleurs vives ---------- */
.depart { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.depart > div { padding: 1.8rem 1.6rem 1.6rem; border: 1px solid var(--filet); border-radius: var(--rayon); background: var(--graphite); }
.depart .num { display: block; font-family: var(--serif); font-size: 2.6rem; line-height: 1; color: var(--laiton); margin-bottom: .9rem; }
.depart h3 { margin-bottom: .5rem; }
.depart p { margin: 0; color: #b9c1ca; }
.familles.sobres .famille { display: grid; grid-template-columns: 1fr 110px; gap: 1.2rem; align-items: center; border-left: 1px solid var(--filet); border-top: 1px solid var(--filet); background: var(--encre); }
.familles.sobres .famille h3 { color: var(--ivoire); }
.familles.sobres .famille .exemple { color: var(--laiton); filter: none; }
.familles.sobres .vignette { display: flex; align-items: flex-end; justify-content: center; height: 150px; }
.familles.sobres .vignette img { max-width: 100%; max-height: 100%; width: auto; height: auto; filter: drop-shadow(0 10px 12px rgb(0 0 0 / .5)); }
.finitions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 2rem; }
.finitions > div { padding: 1.6rem; border: 1px solid var(--filet); border-radius: var(--rayon); background: var(--graphite); }
.finitions h3 { color: var(--laiton); font-size: 1.25rem; }
.finitions p { margin: 0 0 .9rem; color: #b9c1ca; }
.finitions .refs { display: flex; flex-wrap: wrap; gap: .45rem; margin: 0; padding: 0; list-style: none; }
.finitions .refs li { font-size: .85rem; padding: .2rem .7rem; border: 1px solid var(--filet-fort); border-radius: 999px; color: var(--brume); }
.etapes.lignes { gap: 0; position: relative; }
.etapes.lignes li { border: 0; border-top: 2px solid var(--filet-fort); border-radius: 0; background: transparent; padding: 1.3rem 1.4rem 0 0; }
.etapes.lignes li::before { content: "0" counter(e); display: block; width: auto; height: auto; border-radius: 0; background: none; color: var(--laiton); font-family: var(--serif); font-size: 2.2rem; font-weight: 400; margin-bottom: .6rem; }
.etapes.lignes li:first-child { border-top-color: var(--laiton); }
@media (max-width: 760px) { .depart, .finitions { grid-template-columns: 1fr; } .familles.sobres .famille { grid-template-columns: 1fr 90px; } }

/* halo bleu derrière les enceintes de l'accueil : régler l'intensité avec les valeurs .55 (centre) et .22 (bord) */
.trio::before { content: ""; position: absolute; z-index: 0; left: -12%; right: -12%; top: -8%; bottom: 0;
  background: radial-gradient(closest-side, rgb(70 160 205 / .55), rgb(43 122 156 / .22) 55%, transparent 100%); filter: blur(6px); pointer-events: none; }

.finitions.deux { grid-template-columns: 1fr 1.6fr; }
.finitions .plus { margin: 0; padding-left: 1.1rem; color: #b9c1ca; }
.finitions .plus li { margin-bottom: .7rem; font-size: .97rem; }
@media (max-width: 760px) { .finitions.deux { grid-template-columns: 1fr; } }
.trio .t1 img { max-height: 400px; }
.trio .t2 img { max-height: 500px; }

/* page Sur mesure */
.lead.grand { font-size: 1.3rem; color: var(--ivoire); max-width: 46rem; margin-bottom: 2.5rem; }
.depart.quatre { grid-template-columns: repeat(2, 1fr); }
.faq { max-width: 50rem; }
.faq details { border: 1px solid var(--filet); border-radius: 12px; background: var(--graphite); margin-bottom: .7rem; padding: .2rem 1.2rem; }
.faq summary { cursor: pointer; padding: .85rem 0; font-weight: 600; color: var(--ivoire); }
.faq details[open] summary { color: var(--laiton); }
.faq details p { margin: 0 0 1rem; color: #b9c1ca; }
@media (max-width: 760px) { .depart.quatre { grid-template-columns: 1fr; } }