/* =============================================================
   ISATIS Kinesens — Design system partagé (site.css)
   « élégance organique » — socle commun à toutes les pages.
   Chargé AVANT le <style> inline de chaque page ; les règles
   propres à une page restent inline et priment par l'ordre.
   ============================================================= */

:root{
  --forest:#26352b;--forest-2:#1c2922;--sage:#7c8b6f;--muted:#5d6b4e;--sage-soft:#aab69c;
  --terra:#c0673f;--terra-deep:#a8542f;--ochre:#d99a5b;
  --cream:#f4efe6;--cream-deep:#eae2d3;--ink:#1d241e;--paper:#fbf8f1;
  --ff-display:"Fraunces", Georgia, serif;--ff-body:"Hanken Grotesk", system-ui, sans-serif;
  --maxw:1200px;--z-sticky:100;--z-modal:300;--ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:var(--cream);color:var(--ink);font-family:var(--ff-body);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px}
@media(max-width:600px){.wrap{padding:0 22px}}
h1,h2,h3,h4{font-family:var(--ff-display);font-weight:380;line-height:1.06;letter-spacing:-.018em;text-wrap:balance}
p{text-wrap:pretty}
a{color:inherit}
.accent{color:var(--terra)}
.serif-it{font-style:italic}

/* ---------- boutons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--ff-body);font-weight:600;font-size:.95rem;
  padding:15px 28px;border-radius:40px;border:none;cursor:pointer;text-decoration:none;transition:transform .45s var(--ease),background .45s var(--ease),box-shadow .45s var(--ease),color .45s var(--ease);white-space:nowrap}
.btn .arr{transition:transform .45s var(--ease)}
.btn:hover .arr{transform:translateX(5px)}
.btn-primary{background:var(--terra-deep);color:var(--cream)}
.btn-primary:hover{background:var(--forest);transform:translateY(-3px);box-shadow:0 18px 34px -16px rgba(168,84,47,.7)}
.btn-primary:focus-visible{outline:3px solid var(--ochre);outline-offset:3px}
.btn-ghost{background:transparent;color:var(--forest);border:1.5px solid rgba(38,53,43,.4)}
.btn-ghost:hover{background:var(--forest);color:var(--cream);border-color:var(--forest)}
.btn-ghost:focus-visible{outline:3px solid var(--ochre);outline-offset:3px}
.btn-light{background:var(--cream);color:var(--forest)}
.btn-light:hover{background:var(--ochre);color:var(--forest-2);transform:translateY(-3px)}

/* ---------- header ---------- */
header.site{position:fixed;top:0;left:0;right:0;z-index:var(--z-sticky);transition:background .5s var(--ease),box-shadow .5s var(--ease),padding .5s var(--ease);padding:22px 0}
header.site.scrolled{background:rgba(244,239,230,.88);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--cream-deep);padding:12px 0}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;flex-direction:column;line-height:1;text-decoration:none}
.brand .n{font-family:var(--ff-display);font-size:1.5rem;font-weight:500;color:var(--forest);letter-spacing:.01em}
.brand .s{font-size:.62rem;letter-spacing:.34em;text-transform:uppercase;color:var(--terra-deep);font-weight:600;margin-top:5px}
header.site:not(.scrolled) .brand .n{color:var(--cream)}
header.site:not(.scrolled) .brand .s{color:var(--ochre)}
.menu{display:flex;align-items:center;gap:34px;list-style:none}
.menu a{text-decoration:none;font-weight:500;font-size:.95rem;color:var(--forest);position:relative;padding:4px 0;transition:color .3s}
.menu a::after{content:"";position:absolute;left:0;bottom:-2px;height:1.5px;width:0;background:var(--terra);transition:width .35s var(--ease)}
.menu a:hover{color:var(--terra)}
.menu a:hover::after{width:100%}
.menu a[aria-current="page"]{color:var(--terra)}
.menu a[aria-current="page"]::after{width:100%}
header.site:not(.scrolled) .menu a{color:rgba(244,239,230,.92)}
header.site:not(.scrolled) .menu a:hover,header.site:not(.scrolled) .menu a[aria-current="page"]{color:var(--ochre)}
header.site:not(.scrolled) .menu a[aria-current="page"]::after{background:var(--ochre)}
.nav-cta{display:flex;align-items:center;gap:14px}
.menu-btn{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.menu-btn span{width:24px;height:2px;background:var(--cream);border-radius:2px;transition:.3s}
header.site.scrolled .menu-btn span{background:var(--forest)}
@media(max-width:920px){
  /* Pas de backdrop-filter en mobile : il créerait un bloc conteneur qui casserait
     le menu plein écran (position:fixed) une fois le header scrollé. Fond opaque à la place. */
  header.site.scrolled{background:rgba(244,239,230,.97);backdrop-filter:none;-webkit-backdrop-filter:none}
  .menu{position:fixed;inset:0;background:var(--forest);flex-direction:column;justify-content:center;gap:24px;transform:translateY(-100%);visibility:hidden;pointer-events:none;transition:transform .5s var(--ease),visibility .5s var(--ease);z-index:-1}
  .menu.open{transform:translateY(0);visibility:visible;pointer-events:auto}
  .menu a{color:var(--cream)!important;font-size:1.5rem;font-family:var(--ff-display);min-height:44px;display:flex;align-items:center;padding:6px 16px}
  .menu-btn{display:flex;min-width:44px;min-height:44px;align-items:center;justify-content:center}
  .nav-cta .btn-text{display:none}
  /* Menu ouvert : le burger doit rester visible (crème) sur le fond forêt et devenir une croix.
     Sinon, header scrollé = barres vert forêt sur menu vert forêt = bouton invisible. */
  header.site.scrolled .menu-btn[aria-expanded="true"] span{background:var(--cream)}
  .menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
  .menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  /* Marque lisible par-dessus le menu ouvert (header scrollé) */
  header.site.scrolled:has(.menu-btn[aria-expanded="true"]) .brand .n{color:var(--cream)}
  header.site.scrolled:has(.menu-btn[aria-expanded="true"]) .brand .s{color:var(--ochre)}
}
@media (prefers-reduced-motion:reduce){.menu{transition:none}}

/* ---------- reveal au scroll ---------- */
.reveal{transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .reveal{opacity:0;transform:translateY(26px)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}

/* ---------- placeholder photo (.ph) ---------- */
.ph{position:relative;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:24px;
  background:radial-gradient(120% 85% at 50% 32%,#41523f,#26332a 68%,#1d2720)}
.ph::after{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(45deg,transparent,transparent 26px,rgba(244,239,230,.02) 26px,rgba(244,239,230,.02) 52px)}
.ph .cam{position:relative;width:62px;height:62px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--ochre);border:1px solid rgba(217,154,91,.45);background:rgba(217,154,91,.08)}
.ph .cam svg{width:26px;height:26px}
.ph .cap{position:relative;font-family:var(--ff-display);font-size:1.15rem;color:var(--cream);font-weight:400}
.ph .sub{position:relative;font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;color:rgba(217,154,91,.8);font-weight:600}

/* NB : `section`, `.lede`, `.kick` ne sont volontairement PAS ici —
   leurs valeurs varient selon les pages (padding 92/96/110/120px),
   chaque page les définit donc inline. */

/* ---------- footer ---------- */
footer.site{background:var(--forest-2);color:var(--sage-soft);padding:64px 0 36px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(170,182,156,.16)}
.foot-grid .n{font-family:var(--ff-display);font-size:1.5rem;color:var(--cream);font-weight:500}
.foot-grid .s{font-size:.62rem;letter-spacing:.32em;text-transform:uppercase;color:var(--ochre);font-weight:600;margin-top:6px}
.foot-grid p{margin-top:16px;font-size:.9rem;font-weight:300;max-width:34ch}
.foot-grid h4{color:var(--cream);font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;font-family:var(--ff-body);font-weight:700;margin-bottom:16px}
.foot-grid ul{list-style:none}
.foot-grid li{margin-bottom:11px}
.foot-grid a{text-decoration:none;font-size:.92rem;color:var(--sage-soft);transition:color .3s;display:inline-block;padding:3px 0}
.foot-grid a:hover{color:var(--ochre)}
.foot-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:28px;font-size:.78rem;color:rgba(170,182,156,.6)}
.foot-bottom a{color:inherit;text-decoration:underline;text-underline-offset:3px;transition:color .3s}
.foot-bottom a:hover{color:var(--ochre)}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr;gap:32px}}

/* ---------- accessibilité ---------- */
a:focus-visible{outline:3px solid var(--ochre);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ochre);color:var(--forest);padding:12px 18px;border-radius:0 0 10px 0;z-index:1000;font-weight:600}
.skip:focus{left:0}