/* ============================================================
   CANTA CONSTRUCTIONS — feuille de style unique
   Direction retenue par Mourad (Phase 1bis, 2026-07-28) : C « Pierre & garrigue ».
   Base calcaire claire, bleu du logo en typographie, rouge en ponctuation.
   Tokens et règles issus de DESIGN.md (contrat du projet).
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root{
  /* couleurs — TOUTES extraites du logo client (bleu / blanc / rouge) */
  --blue-ink:#13355A;        /* bleu du logo, 76 % de ses pixels opaques */
  --blue-deep:#0B1F35;       /* déclinaison sombre, sections d'impact */
  --blue-soft:#E6ECF3;
  --paper:#FFFFFF;           /* le blanc des blocs du picto */
  --limestone:#F5F2EC;       /* calcaire chaud, garrigue héraultaise — fond dominant */
  --limestone-line:#E2DCCD;
  --red-brick:#BE2A30;       /* rouge du bloc unique du picto */
  --red-brick-dark:#9E2126;
  --stone-700:#4A4740;
  --stone-400:#8A857A;
  --hairline:#E9E5DC;
  --sand:#EFD9A8;            /* eyebrow sur photo (direction C) */

  /* typographie */
  --font-display:"Bricolage Grotesque","Work Sans",system-ui,sans-serif;
  --font-body:"Work Sans",system-ui,-apple-system,sans-serif;
  --fs-display:clamp(35px,5.5vw,74px);   /* plafond skill : clamp(40px,6vw,96px) */
  --fs-h2:clamp(27px,3.4vw,44px);
  --fs-h3:clamp(20px,2.3vw,27px);
  --fs-body:17px;

  /* structure */
  --wrap:1180px;
  --gutter:20px;
  --header-h:82px;
  --radius:4px;
  --radius-lg:8px;

  /* ombres superposées, jamais de bordure dure */
  --shadow-sm:0 1px 2px rgba(11,31,53,.06),0 2px 6px rgba(11,31,53,.05);
  --shadow-md:0 2px 6px rgba(11,31,53,.07),0 12px 28px -14px rgba(11,31,53,.30);
  --shadow-lg:0 3px 10px rgba(11,31,53,.08),0 26px 60px -30px rgba(11,31,53,.46);

  /* motion (liste fermée du DESIGN.md §9) */
  --ease:cubic-bezier(.2,0,0,1);
  --t-fast:160ms;
  --t-mid:200ms;
}

/* ---------- 2. Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.65;
  color:var(--stone-700);
  background:var(--limestone);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
img{height:auto}
h1,h2,h3,h4{margin:0;font-family:var(--font-display);color:var(--blue-ink);text-wrap:balance;letter-spacing:-.022em;line-height:1.12}
h1{font-size:var(--fs-display);font-weight:800;line-height:1.03;letter-spacing:-.028em}
h2{font-size:var(--fs-h2);font-weight:800}
h3{font-size:var(--fs-h3);font-weight:700}
p{margin:0;text-wrap:pretty}
p+p{margin-top:1em}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
strong,b{font-weight:600;color:var(--blue-ink)}
:focus-visible{outline:3px solid var(--red-brick);outline-offset:3px;border-radius:2px}
.tnum{font-variant-numeric:tabular-nums}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--blue-ink);color:#fff;padding:12px 18px;font-weight:600}
.skip-link:focus{left:8px;top:8px}
/* le header est sticky : une cible d'ancre doit s'arrêter en dessous, pas sous lui */
[id]{scroll-margin-top:calc(var(--header-h) + 14px)}

/* ---------- 3. Structure ---------- */
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(56px,7vw,92px)}
.section--tight{padding-block:clamp(40px,5vw,64px)}
.section--paper{background:var(--paper)}
.section--limestone{background:var(--limestone)}
.section--deep{background:var(--blue-deep);color:#D3DEEA;position:relative;overflow:hidden}
.section--deep h2,.section--deep h3{color:#fff}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--red-brick);margin:0}
.section--deep .eyebrow{color:var(--sand)}
.lead{font-size:clamp(17px,1.5vw,19px);line-height:1.6}
.muted{color:var(--stone-400)}          /* ⛔ jamais sur photo ni sur fond sombre */

/* en-tête de section : titre décalé sur la gouttière, texte d'appui à droite */
.sec-head{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:28px;align-items:end;margin-bottom:clamp(28px,3.6vw,44px)}
.sec-head h2{margin-top:10px;max-width:22ch}
.sec-head p{color:var(--stone-700);max-width:44ch}
.section--deep .sec-head p{color:#BFCFE0}

/* ---------- 4. Motif signature : appareillage de pierre ---------- */
.bond{position:absolute;left:0;right:0;bottom:0;height:120px;pointer-events:none;z-index:2}
.bond svg{width:100%;height:100%}
.bond-rule{display:block;width:100%;height:26px}
.bond-rule svg{width:100%;height:100%}
.bond-bg{position:absolute;inset:0;opacity:.09;pointer-events:none}
.bond-bg svg{width:100%;height:100%}

/* ---------- 5. Boutons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:52px;padding:0 26px;border:1.5px solid transparent;border-radius:var(--radius);
  font-family:var(--font-body);font-weight:600;font-size:16px;cursor:pointer;
  transition:background-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease),
             border-color var(--t-fast) var(--ease),transform 100ms var(--ease),
             box-shadow var(--t-fast) var(--ease);
}
.btn:active{transform:scale(.96)}
.btn[href^="tel:"]{white-space:nowrap;font-variant-numeric:tabular-nums}
.btn--red{background:var(--red-brick);color:#fff;box-shadow:var(--shadow-sm)}
.btn--red:hover{background:var(--red-brick-dark);box-shadow:var(--shadow-md)}
.btn--blue{background:var(--blue-ink);color:#fff}
.btn--blue:hover{background:var(--blue-deep)}
.btn--ghost-light{border-color:rgba(255,255,255,.55);color:#fff}
.btn--ghost-light:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn--ghost-blue{border-color:rgba(19,53,90,.32);color:var(--blue-ink)}
.btn--ghost-blue:hover{background:var(--blue-soft);border-color:var(--blue-ink)}
.btn--sm{min-height:44px;padding:0 18px;font-size:15px}

/* lien fléché : le filet se déplie (animation autorisée n°2) */
.arrow{display:inline-flex;align-items:center;gap:10px;color:var(--red-brick);font-weight:600;font-size:15.5px;min-height:40px}
.arrow i{display:block;width:14px;height:2px;background:var(--red-brick);transition:width var(--t-mid) var(--ease)}
.row:hover .arrow i,a:hover .arrow i,.arrow:hover i{width:32px}

/* ---------- 6. Header (direction C : transparent sur le hero, plein au scroll) ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--paper);
  transition:background-color var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease);
}
.site-header .inner{display:flex;align-items:center;gap:22px;min-height:var(--header-h)}
.site-header.is-stuck{background:var(--paper);box-shadow:0 1px 0 var(--hairline),0 10px 26px -20px rgba(11,31,53,.55)}

/* pages avec hero : le contenu remonte SOUS le header, qui devient transparent */
body.hero-top main{margin-top:calc(-1 * var(--header-h))}
body.hero-top .site-header:not(.is-stuck){
  background:linear-gradient(180deg,rgba(11,31,53,.58),rgba(11,31,53,0));
}

/* Logo client : lockup horizontal (picto appareillage + « CANTA CONSTRUCTIONS »), ratio 3.39.
   ⛔ Jamais de nom d'entreprise écrit à côté : le logo le contient déjà.
   Deux variantes empilées, on bascule selon le fond. */
.brand{position:relative;display:inline-flex;align-items:center;flex:0 0 auto;line-height:0}
.brand img{height:58px;width:auto;display:block;transition:opacity var(--t-mid) var(--ease)}
.brand .brand-light{position:absolute;left:0;top:0;opacity:0}
body.hero-top .site-header:not(.is-stuck) .brand-dark{opacity:0}
body.hero-top .site-header:not(.is-stuck) .brand-light{opacity:1}

.nav{margin-left:auto;display:flex;align-items:center;gap:26px;font-size:15.5px;font-weight:500;color:var(--blue-ink)}
body.hero-top .site-header:not(.is-stuck) .nav{color:#fff;text-shadow:0 1px 10px rgba(11,31,53,.5)}
.nav>li>a,.nav>li>button{
  position:relative;display:inline-flex;align-items:center;gap:6px;min-height:44px;
  background:none;border:0;font:inherit;color:inherit;cursor:pointer;padding:0;
}
.nav>li>a::after,.nav>li>button::after{
  content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;background:var(--red-brick);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t-mid) var(--ease);
}
.nav>li>a:hover::after,.nav>li>a[aria-current="page"]::after,.nav>li>button:hover::after{transform:scaleX(1)}
.nav .chev{width:8px;height:8px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px)}

.submenu{position:relative}
.submenu>ul{
  position:absolute;top:100%;left:-18px;min-width:280px;background:var(--paper);color:var(--blue-ink);
  box-shadow:var(--shadow-md);border-top:3px solid var(--red-brick);border-radius:0 0 var(--radius) var(--radius);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(-4px);text-shadow:none;
  transition:opacity var(--t-fast) var(--ease),transform var(--t-fast) var(--ease),visibility var(--t-fast);
}
.submenu:hover>ul,.submenu:focus-within>ul,.submenu.is-open>ul{opacity:1;visibility:visible;transform:translateY(0)}
.submenu>ul a{display:block;padding:11px 14px;border-radius:3px;font-size:15.5px;font-weight:500;transition:background-color var(--t-fast) var(--ease)}
.submenu>ul a:hover{background:var(--blue-soft)}
.submenu>ul small{display:block;color:var(--stone-400);font-size:13px;margin-top:2px;font-weight:400}

.burger{display:none;margin-left:auto;width:46px;height:46px;align-items:center;justify-content:center;background:none;border:1.5px solid rgba(19,53,90,.24);border-radius:var(--radius);cursor:pointer;position:relative;z-index:90}
.burger span{display:block;width:20px;height:2px;background:var(--blue-ink);position:relative;transition:background-color var(--t-fast) var(--ease)}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--blue-ink);transition:transform var(--t-fast) var(--ease),top var(--t-fast) var(--ease)}
.burger span::before{top:-6px}
.burger span::after{top:6px}
body.hero-top .site-header:not(.is-stuck) .burger{border-color:rgba(255,255,255,.5)}
body.hero-top .site-header:not(.is-stuck) .burger span,
body.hero-top .site-header:not(.is-stuck) .burger span::before,
body.hero-top .site-header:not(.is-stuck) .burger span::after{background:#fff}
.drawer{display:none}

/* ---------- 7. Hero (direction C : immersif, voile latéral, texte à gauche) ---------- */
.hero{position:relative;display:flex;align-items:center;overflow:hidden;background:var(--blue-deep);min-height:clamp(560px,86vh,860px)}
.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero .veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,31,53,.88) 0%,rgba(11,31,53,.72) 42%,rgba(11,31,53,.36) 78%,rgba(11,31,53,.26) 100%)}
.hero .inner{position:relative;z-index:3;width:100%;padding-block:calc(var(--header-h) + 48px) clamp(96px,12vw,150px)}
.hero-txt{max-width:720px;color:#fff;text-shadow:0 2px 18px rgba(11,31,53,.55)}
.hero-txt h1{color:#fff}
.hero-txt .eyebrow{color:var(--sand)}
.hero-txt .lead{margin-top:20px;color:#F4F1EC;max-width:54ch}
.hero-txt .actions{margin-top:30px;display:flex;gap:12px;flex-wrap:wrap}
/* pages internes : même traitement, plus court, sans volet */
.hero--inner{min-height:clamp(380px,52vh,540px)}
.hero--inner .inner{padding-block:calc(var(--header-h) + 40px) clamp(48px,6vw,72px)}
.hero--inner .hero-txt h1{font-size:clamp(31px,4.4vw,56px)}

/* enter staggered, une seule fois au chargement (DESIGN.md §9.5) */
@media (prefers-reduced-motion:no-preference){
  .hero-txt>*{animation:rise 460ms var(--ease) both}
  .hero-txt>*:nth-child(1){animation-delay:40ms}
  .hero-txt>*:nth-child(2){animation-delay:130ms}
  .hero-txt>*:nth-child(3){animation-delay:220ms}
  .hero-txt>*:nth-child(4){animation-delay:310ms}
  @keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
}

/* ---------- 8. Volet : bande calcaire qui chevauche le bas du hero (signature C) ---------- */
.volet-wrap{position:relative;z-index:5}
.volet{
  max-width:calc(var(--wrap) - 2 * var(--gutter));margin:clamp(-104px,-8vw,-72px) auto 0;
  background:var(--limestone);border-top:3px solid var(--red-brick);box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:repeat(3,1fr);
}
.volet>div{padding:28px 26px}
.volet>div+div{border-left:1px solid var(--limestone-line)}
.volet .k{display:block;font-family:var(--font-display);font-weight:700;font-size:21px;color:var(--blue-ink);font-variant-numeric:tabular-nums;line-height:1.2}
.volet .v{display:block;margin-top:7px;font-size:14.5px;color:var(--stone-700);line-height:1.55}

/* ---------- 9. Index typographique des services (remplace la grille de cartes) ---------- */
.row{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:30px;align-items:center;padding:28px 0;border-top:1px solid var(--limestone-line);transition:background-color var(--t-mid) var(--ease)}
.row:last-child{border-bottom:1px solid var(--limestone-line)}
.row:hover{background:rgba(255,255,255,.55)}
.row h3{font-size:clamp(22px,2.7vw,33px);font-weight:700;letter-spacing:-.018em;line-height:1.12}
.row p{margin-top:10px;color:var(--stone-700);font-size:15.5px;line-height:1.62;max-width:54ch}
.row .arrow{margin-top:14px}
.row figure{margin:0;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);outline:1px solid rgba(19,53,90,.10);outline-offset:-1px;background:var(--blue-soft)}
.row figure img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.row:hover figure img{transform:scale(1.03)}

/* ---------- 10. Cartes, figures, listes ---------- */
.card{background:var(--paper);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:26px;display:flex;flex-direction:column;transition:box-shadow var(--t-mid) var(--ease),transform var(--t-mid) var(--ease)}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.card h3{margin-bottom:9px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.split{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(28px,4vw,56px);align-items:center}
.split--reverse{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}
.figure{margin:0;overflow:hidden;border-radius:var(--radius);outline:1px solid rgba(19,53,90,.10);outline-offset:-1px;background:var(--blue-soft)}
.figure img{width:100%;height:100%;object-fit:cover}
.figure figcaption{font-size:13.5px;color:var(--stone-400);padding-top:10px;line-height:1.5}
.ratio-16-9{aspect-ratio:16/9}
.ratio-4-3{aspect-ratio:4/3}
.ratio-21-9{aspect-ratio:21/9}
/* bande matière plein cadre */
.band-matiere{position:relative;overflow:hidden}
.band-matiere img{width:100%;aspect-ratio:21/9;object-fit:cover}
@media (max-width:620px){.band-matiere img{aspect-ratio:16/9}}

/* liste à filets (points de méthode, périmètre d'une prestation) */
.checks li{position:relative;padding:14px 0 14px 30px;border-top:1px solid var(--limestone-line);font-size:16px;line-height:1.6}
.checks li:first-child{border-top:0}
.checks li::before{content:"";position:absolute;left:0;top:22px;width:14px;height:2px;background:var(--red-brick)}
.section--deep .checks li{border-color:rgba(255,255,255,.14);color:#D3DEEA}

/* séquence de chantier dessinée (page extension) — remplace le trio « 3 avantages + icônes » */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--limestone-line)}
.steps>li{padding:28px 24px 28px 24px;border-left:1px solid var(--limestone-line)}
.steps>li:first-child{border-left:0;padding-left:0}
.steps>li:last-child{padding-right:0}
.steps svg{width:60px;height:60px;margin-bottom:18px}
.steps h3{font-size:19px;letter-spacing:-.012em}
.steps p{margin-top:9px;font-size:15px;line-height:1.6;color:var(--stone-700)}
@media (max-width:1000px){
  .steps{grid-template-columns:1fr 1fr}
  .steps>li:nth-child(3){border-left:0;padding-left:0}
  .steps>li:nth-child(2),.steps>li:last-child{padding-right:0}
}
@media (max-width:620px){
  .steps{grid-template-columns:1fr}
  .steps>li{border-left:0;padding-left:0;padding-right:0;border-top:1px solid var(--limestone-line)}
  .steps>li:first-child{border-top:0}
}

/* ---------- 11. Tableau de faits ---------- */
.facts{width:100%;border-collapse:collapse;font-size:16px}
.facts th,.facts td{text-align:left;padding:16px 18px;border-top:1px solid var(--limestone-line);vertical-align:top}
.facts thead th{border-top:0;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-ink);opacity:.72;font-weight:600;padding-bottom:10px}
.facts tbody th{font-family:var(--font-display);font-weight:700;color:var(--blue-ink);width:26%}
.facts tbody tr:hover{background:rgba(255,255,255,.6)}

/* ---------- 12. Carte de zone (SVG, page contact) ---------- */
.zone{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4vw,48px);align-items:center}
.zone svg{width:100%;height:auto}
.zone .zone-list{columns:2;column-gap:24px;margin-top:18px}
.zone .zone-list li{font-size:15.5px;padding:5px 0;break-inside:avoid}

/* ---------- 13. Formulaire ---------- */
.form{display:grid;gap:16px}
.field{display:grid;gap:7px}
.field label{font-size:14.5px;font-weight:600;color:var(--blue-ink)}
.field .req{color:var(--red-brick)}
.field input,.field select,.field textarea{
  width:100%;min-height:52px;padding:13px 15px;font:inherit;font-size:16px;color:var(--stone-700);
  background:var(--paper);border:1.5px solid rgba(19,53,90,.22);border-radius:var(--radius);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue-ink);box-shadow:0 0 0 3px rgba(19,53,90,.12);outline:none}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-size:13.5px;color:var(--stone-400);line-height:1.55}

/* ---------- 14. Bande CTA ---------- */
.cta-band{background:var(--blue-ink);color:#fff;position:relative;overflow:hidden}
.cta-band .inner{display:grid;grid-template-columns:minmax(0,1.25fr) auto;gap:30px;align-items:center;padding-block:clamp(40px,5vw,64px);position:relative;z-index:2}
.cta-band h2{color:#fff;max-width:20ch}
.cta-band p{color:#C3D2E3;margin-top:12px;max-width:52ch}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 15. Footer ---------- */
.site-footer{background:var(--blue-deep);color:#B9C8D8;position:relative;overflow:hidden}
.site-footer a{color:#E7EDF5}
.site-footer a:hover{color:#fff}
/* le logo EN TRÈS GRAND (doctrine logo-client §3) */
.footer-mark{padding-top:clamp(44px,6vw,68px)}
.footer-mark img{width:min(100%,620px);height:auto;display:block}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:34px;padding-block:clamp(34px,4.6vw,52px)}
.footer-grid h3{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:#8FA6BF;font-family:var(--font-body);font-weight:600;margin-bottom:14px}
.footer-grid li+li{margin-top:9px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-block:20px;display:flex;flex-wrap:wrap;gap:14px 26px;justify-content:space-between;font-size:14px;color:#8FA6BF}

/* ---------- 16. Responsive ---------- */
@media (max-width:1000px){
  .sec-head{grid-template-columns:1fr;gap:14px}
  .split,.split--reverse{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .zone{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band .inner{grid-template-columns:1fr;gap:22px}
}
@media (max-width:860px){
  :root{--header-h:70px}
  /* mobile : le bloc texte du hero remonte, le voile doit y rester ≥ .55 (design-artisan-btp §3) */
  .hero .veil{background:linear-gradient(175deg,rgba(11,31,53,.62) 0%,rgba(11,31,53,.72) 34%,rgba(11,31,53,.86) 72%,rgba(11,31,53,.92) 100%)}
  .hero{min-height:clamp(520px,80vh,720px)}
  .brand img{height:46px}
  .nav{display:none}
  .burger{display:flex}
  .site-header .inner>.btn{display:none}
  /* ⚠ le tiroir passe SOUS le header (z-index 55 < 60) : sinon il recouvre le burger
     et il n'y a plus aucun moyen de refermer le menu (`.site-header` est en position:sticky,
     donc elle crée un contexte d'empilement et le z-index du burger y reste enfermé). */
  .drawer{display:block;position:fixed;inset:0;z-index:55;background:var(--blue-deep);padding:calc(var(--header-h) + 18px) 24px 32px;overflow-y:auto}
  .drawer[hidden]{display:none}
  .drawer a{display:block;color:#fff;font-family:var(--font-display);font-weight:700;font-size:26px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.14)}
  .drawer .sub a{font-family:var(--font-body);font-size:18px;font-weight:500;color:#C3D2E3;padding-left:16px}
  .drawer .actions{margin-top:26px;display:grid;gap:12px}
  /* menu ouvert : le header se fond dans le tiroir et la croix reste blanche et cliquable */
  body.menu-open .site-header,body.menu-open .site-header.is-stuck{background:transparent;box-shadow:none}
  body.menu-open .brand-dark{opacity:0}
  body.menu-open .brand-light{opacity:1}
  .burger[aria-expanded="true"]{border-color:rgba(255,255,255,.5)}
  .burger[aria-expanded="true"] span{background:transparent}
  .burger[aria-expanded="true"] span::before{transform:rotate(45deg);top:0;background:#fff}
  .burger[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0;background:#fff}
  .volet{grid-template-columns:1fr;margin-top:-56px}
  .volet>div+div{border-left:0;border-top:1px solid var(--limestone-line)}
  .row{grid-template-columns:1fr;gap:18px}
  .row figure{order:-1;aspect-ratio:16/9}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
}
@media (max-width:620px){
  :root{--gutter:18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .zone .zone-list{columns:1}
  .facts tbody th{width:auto;display:block;border-top:0;padding-bottom:0}
  .facts tbody td{display:block;border-top:0;padding-top:6px}
  .facts tbody tr{display:block;border-top:1px solid var(--limestone-line)}
  .facts thead{display:none}
}
@media (max-width:380px){
  .brand img{height:42px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;animation-iteration-count:1 !important}
}