/* ===== MUTA — hero ===== */
:root{
  --cream:#f2efe7;
  --ink:#111a31;
  --ink-soft:#21293d;
  --grey:#6b7587;
  --index:#c7c4b8;
  --shadow:#d4cfc2;
  --serif:"Cormorant Garamond","Cormorant",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{background:#0d0d0f;font-family:var(--sans)}
body{display:flex;justify-content:center;align-items:center;min-height:100vh}

/* Stage fixe 1440x900, se réduit sur petit écran */
.stage{
  position:relative;
  width:1440px;height:900px;
  background:var(--cream);
  overflow:hidden;
  transform-origin:center center;
  box-shadow:0 40px 120px rgba(0,0,0,.5);
}

/* ============ NAV ============ */
.nav{position:absolute;top:50px;left:64px;right:64px;display:flex;justify-content:space-between;align-items:center;z-index:5}
.logo{font-family:var(--serif);font-weight:600;font-size:30px;letter-spacing:.22em;color:var(--ink)}
.links{display:flex;gap:44px}
.links span{font-size:13px;letter-spacing:.18em;color:var(--ink-soft)}

/* ============ HERO GRID ============ */
.hero{position:absolute;inset:0}

/* ---- gauche ---- */
.left{position:absolute;left:64px;top:150px;width:620px}
.micro{font-size:12px;letter-spacing:.02em;color:var(--grey)}
.aster{position:absolute;left:26px;top:118px;color:#c0392b;font-size:26px;line-height:1}
.title{
  position:absolute;top:150px;left:24px;
  font-family:var(--serif);font-weight:500;font-size:96px;line-height:1.02;
  color:var(--ink);letter-spacing:.005em;
}
.subtitle{position:absolute;top:446px;left:26px;font-size:13px;letter-spacing:.16em;color:var(--grey)}

.swatches{position:absolute;top:500px;left:26px;display:flex;gap:88px}
.sw{
  display:flex;align-items:center;gap:10px;background:none;border:0;cursor:pointer;
  font-family:var(--sans);font-size:12px;letter-spacing:.05em;color:var(--ink-soft);
  padding:6px 0;opacity:.55;transition:opacity .3s;
}
.sw i{width:18px;height:18px;background:var(--c);display:inline-block}
.sw.is-active{opacity:1}
.sw:hover{opacity:1}

.cta{position:absolute;top:592px;left:26px;font-size:15px;letter-spacing:.14em;color:var(--ink);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .3s}
.cta:hover{border-color:var(--ink)}

/* ---- droite ---- */
.right{position:absolute;inset:0;pointer-events:none}
.index{position:absolute;right:64px;top:120px;font-size:92px;color:var(--index);letter-spacing:.02em;font-weight:400}

.product{position:absolute;left:700px;top:250px;width:700px;height:420px}
.ground{
  position:absolute;left:120px;bottom:36px;width:470px;height:56px;border-radius:50%;
  background:radial-gradient(ellipse at center,var(--shadow) 0%,rgba(212,207,194,0) 70%);
  filter:blur(2px);
}
.glasses{position:absolute;left:60px;top:118px;width:600px;height:auto;filter:drop-shadow(0 18px 26px rgba(40,35,25,.18))}

/* caméléon (2 calques : sable + couleur) */
.cham-wrap{position:absolute;left:196px;top:70px;width:150px;height:124px;transform-origin:50% 60%}
.cham{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.cham-blue{opacity:1;transition:opacity 1.1s ease}
.cham-sand{opacity:0;transition:opacity 1.1s ease}
/* avant la chute : caméléon en haut, hors-cadre, sable visible */
.cham-wrap.pre-fall{transform:translateY(-560px) rotate(0deg)}
.cham-wrap.pre-fall .cham-blue{opacity:0}
.cham-wrap.pre-fall .cham-sand{opacity:1}
/* pendant la chute */
.cham-wrap.falling{animation:fall 2.1s cubic-bezier(.5,.02,.72,.35) forwards}
/* après adaptation : couleur prend le dessus */
.cham-wrap.adapted .cham-blue{opacity:1}
.cham-wrap.adapted .cham-sand{opacity:0}

@keyframes fall{
  0%{transform:translateY(-560px) rotate(0deg)}
  74%{transform:translateY(10px) rotate(352deg)}
  86%{transform:translateY(-8px) rotate(360deg)}
  94%{transform:translateY(4px) rotate(360deg)}
  100%{transform:translateY(0) rotate(360deg)}
}

.spec{position:absolute;left:786px;top:520px;width:300px;padding:16px 20px;border-radius:14px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.55);backdrop-filter:blur(6px)}
.spec-title{font-size:15px;color:var(--ink)}
.spec-sub{margin-top:8px;font-size:11px;letter-spacing:.13em;color:#404a5e}

.vertical{position:absolute;right:40px;top:380px;writing-mode:vertical-rl;font-size:12px;letter-spacing:.16em;color:var(--grey)}

/* repères de cadrage */
.crop{position:absolute;width:26px;height:26px;border-color:#9a9384;border-style:solid;border-width:0}
.crop.tl{top:34px;left:34px;border-left-width:1px;border-top-width:1px}
.crop.tr{top:34px;right:34px;border-right-width:1px;border-top-width:1px}
.crop.bl{bottom:34px;left:34px;border-left-width:1px;border-bottom-width:1px}
.crop.br{bottom:34px;right:34px;border-right-width:1px;border-bottom-width:1px}

/* ============ INTRO VIDÉO ============ */
.intro{position:absolute;inset:0;z-index:20;background:#000;transition:opacity 1s ease}
.intro-vid{width:100%;height:100%;object-fit:cover}
.intro-grain{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at center,transparent 55%,rgba(0,0,0,.35))}
.skip{position:absolute;bottom:34px;right:34px;background:rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.5);color:#fff;font-family:var(--sans);font-size:12px;letter-spacing:.12em;padding:10px 16px;border-radius:30px;cursor:pointer;transition:background .3s}
.skip:hover{background:rgba(0,0,0,.6)}
.intro.hide{opacity:0;pointer-events:none}

/* bouton menu : caché hors mobile */
.menu-btn{display:none}

/* =====================================================================
   VERSION MOBILE (≤ 600px) — mise en page portrait, sans mise à l'échelle
   (le rendu desktop ci-dessus n'est pas modifié)
   ===================================================================== */
@media (max-width:600px){
  html,body{background:var(--cream)}
  body{display:block;min-height:0;-webkit-tap-highlight-color:transparent}

  .stage{width:100%;height:auto;min-height:100vh;min-height:100svh;transform:none !important;box-shadow:none;overflow:hidden}

  /* ---- nav + menu compact ---- */
  .nav{top:26px;left:26px;right:22px;z-index:12}
  .logo{font-size:22px;letter-spacing:.24em}
  .menu-btn{display:flex;flex-direction:column;justify-content:center;align-items:flex-end;gap:7px;
    width:44px;height:44px;margin-right:-8px;padding:0 8px;background:none;border:0;cursor:pointer}
  .menu-btn span{display:block;height:1px;background:var(--ink);transition:transform .35s ease,width .35s ease}
  .menu-btn span:first-child{width:26px}
  .menu-btn span:last-child{width:17px}
  .nav.open .menu-btn span:first-child{transform:translateY(4px) rotate(45deg);width:22px}
  .nav.open .menu-btn span:last-child{transform:translateY(-4px) rotate(-45deg);width:22px}
  .links{position:absolute;top:calc(100% + 10px);right:0;flex-direction:column;gap:0;min-width:200px;padding:6px 20px;
    background:var(--cream);border:1px solid rgba(17,26,49,.14);box-shadow:0 18px 40px rgba(17,26,49,.08);
    opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .3s,transform .3s,visibility .3s}
  .nav.open .links{opacity:1;visibility:visible;transform:none}
  .links span{display:block;padding:15px 0;font-size:11px;letter-spacing:.2em;border-bottom:1px solid rgba(17,26,49,.08)}
  .links span:last-child{border-bottom:0}

  /* ---- hero : colonne unique ---- */
  .hero{position:relative;inset:auto;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;padding:94px 24px 26px}
  .left,.right{display:contents}

  .micro{order:1;margin-top:20px;max-width:58%;font-size:10px;line-height:1.5;letter-spacing:.1em}
  .index{order:0;position:absolute;top:98px;right:24px;font-size:54px;line-height:1;letter-spacing:0}

  .aster{order:2;position:static;align-self:flex-start;margin:30px 0 0 1px;font-size:22px;line-height:16px;height:14px}
  .title{order:3;position:static;margin-top:6px;font-size:clamp(38px,13.4vw,64px);line-height:1.02;letter-spacing:0}
  .subtitle{order:4;position:static;margin-top:20px;font-size:10px;letter-spacing:.18em}

  /* produit : plein cadre, positions converties en % de la boîte 700×420 */
  .product{order:5;position:relative;left:auto;top:auto;flex:none;width:108vw;height:auto;aspect-ratio:700/420;
    margin:-4px 0 6px calc(50% - 54vw)}
  .ground{left:17.14%;bottom:8.57%;width:67.14%;height:13.33%}
  .glasses{left:8.57%;top:28.1%;width:85.71%}
  .cham-wrap{left:28%;top:16.67%;width:21.43%;height:29.52%}

  /* pastilles : 3 grandes cibles tactiles */
  .swatches{order:6;position:static;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:0}
  .sw{justify-content:center;gap:10px;height:52px;padding:0;border:1px solid rgba(17,26,49,.16);
    font-size:11px;letter-spacing:.16em;opacity:.62;transition:opacity .3s,border-color .3s,background-color .3s}
  .sw i{width:16px;height:16px;flex:none}
  .sw:hover{opacity:.62}
  .sw.is-active{opacity:1;border-color:var(--ink);background:rgba(255,255,255,.55)}

  .spec{order:7;position:static;width:100%;margin-top:14px;padding:13px 16px;border-radius:12px;
    background:rgba(255,255,255,.4);border:1px solid rgba(17,26,49,.1);backdrop-filter:none}
  .spec-title{font-size:14px}
  .spec-sub{margin-top:6px;font-size:10px}

  .cta{order:8;position:static;align-self:flex-start;margin-top:20px;padding:13px 0;font-size:13px;letter-spacing:.16em}

  .vertical{order:9;position:static;writing-mode:horizontal-tb;margin-top:auto;padding-top:10px;text-align:center;
    font-size:9px;letter-spacing:.22em;white-space:nowrap}

  .crop{width:18px;height:18px}
  .crop.tl{top:12px;left:12px}
  .crop.tr{top:12px;right:12px}
  .crop.bl{bottom:12px;left:12px}
  .crop.br{bottom:12px;right:12px}

  /* ---- intro vidéo en portrait ---- */
  .intro{position:fixed}
  .skip{right:auto;left:50%;transform:translateX(-50%);bottom:calc(30px + env(safe-area-inset-bottom));
    min-height:46px;padding:0 24px;font-size:11px;letter-spacing:.16em;white-space:nowrap;
    background:rgba(0,0,0,.4);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
}