/* Vitrine Strate by Résidence Feuille : même gabarit que la vitrine Paraphe, thème encre (#22201C), accent orange (#D9643A),
   sections « papier » claires où les labels passent en #A8461F. Plus Jakarta Sans. Contrastes vérifiés (orange/encre 4,5:1). */
:root{
  --bg:#22201C; --surface:#2C2A25; --surface-2:#35322C; --fg:#F6F4EF; --muted:#B9B3A6; --line:rgb(246 244 239 / .14);
  --accent:#D9643A; --accent-ink:#22201C; --label:#A8461F;
  --papier:#F6F4EF; --papier-2:#ECE8E0; --papier-fg:#22201C; --papier-muted:#5E5A52;
  --btn:#E6E3DC; --btn-fg:#22201C;
  --f:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color-scheme:dark;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--fg);font:400 16px/1.55 var(--f);-webkit-font-smoothing:antialiased;overflow-x:clip}
h1,h2,h3{margin:0;text-wrap:balance;letter-spacing:-.03em}
p{margin:0}
a{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
svg{flex:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.label{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;z-index:100;background:var(--papier);color:var(--papier-fg);padding:10px 14px;border-radius:10px}

/* Boutons : gris clair, coins 10 px, gras, pictogramme à gauche ; le bouton plein est orange Strate. */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 16px;border:0;border-radius:10px;background:var(--btn);color:var(--btn-fg);font:700 15px/1 var(--f);text-decoration:none;white-space:nowrap;cursor:pointer;transition:transform .1s ease-out,filter .15s}
.btn:hover{filter:brightness(.95)}
.btn:active{transform:scale(.97)}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.lg{min-height:54px;padding:0 24px;font-size:17px}
.btn svg{width:18px;height:18px}

/* En-tête */
.top{position:sticky;top:0;z-index:20;background:rgb(34 32 28 / .88);-webkit-backdrop-filter:blur(20px) saturate(160%);backdrop-filter:blur(20px) saturate(160%);border-bottom:1px solid var(--line)}
.topin{display:flex;align-items:center;gap:20px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;min-height:44px;color:var(--fg);text-decoration:none}
.logo svg{width:38px;height:38px;box-shadow:0 0 0 1px var(--line);border-radius:9px}
.brandtxt{display:grid;line-height:1}
.brandtxt b{font-size:22px;font-weight:800;letter-spacing:-.03em}
.brandtxt small{font-size:11.5px;font-weight:600;color:var(--muted);margin-top:3px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a.lien{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;color:var(--fg);text-decoration:none;font-weight:600;font-size:15px}
.nav a.lien:hover{background:var(--surface)}
.nav a.lien[aria-current]{color:var(--accent)}
.nav .btn{margin-left:6px}
.menu{display:none;margin-left:auto;position:relative}
.menu summary{list-style:none}
.menu summary::-webkit-details-marker{display:none}
.menu .chev{display:inline-flex;transition:transform .2s}
.menu .chev svg{width:18px;height:18px}
.menu[open] .chev{transform:rotate(180deg)}
.menu .panneau{position:absolute;right:0;top:calc(100% + 8px);width:min(300px,calc(100vw - 32px));display:grid;gap:4px;padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 40px rgb(0 0 0 / .4)}
.menu .panneau a.lien{display:flex;align-items:center;min-height:46px;padding:0 12px;border-radius:10px;color:var(--fg);text-decoration:none;font-weight:600}
.menu .panneau a.lien[aria-current]{color:var(--accent);background:var(--surface-2)}
.menu .panneau .btn{width:100%;margin-top:4px}
@media (max-width:1180px){.nav{display:none}.menu{display:block}}

/* Sections */
main{display:block}
.section{padding:72px 0}
.section.tight{padding:40px 0}
.head{margin-bottom:28px;display:grid;gap:10px}
.head h2{font-size:clamp(34px,5vw,60px);font-weight:800;line-height:1}
.intro{color:var(--muted);font-size:18px;max-width:60ch}
.page-hero{padding-top:72px;padding-bottom:24px}
.page-hero h1{font-size:clamp(46px,8vw,104px);font-weight:800;line-height:.95;letter-spacing:-.045em;margin-top:14px;max-width:14ch}
.page-hero p{margin-top:18px;color:var(--muted);font-size:clamp(19px,2.2vw,24px);max-width:44ch}
.page-hero .actions{margin-top:28px}
.actions{display:flex;flex-wrap:wrap;gap:10px}

/* Section claire « papier » */
.papier{background:var(--papier);color:var(--papier-fg)}
.papier .label{color:var(--label)}
.papier .intro{color:var(--papier-muted)}
.papier .btn{background:var(--papier-fg);color:var(--papier)}
.papier .btn.ligne{background:transparent;color:var(--papier-fg);box-shadow:inset 0 0 0 2px var(--papier-fg)}
.papier :focus-visible{outline-color:var(--label)}

/* Accueil */
.hero{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:48px;align-items:center;padding-top:80px;padding-bottom:40px}
.hero h1{font-size:clamp(46px,8.5vw,112px);font-weight:800;line-height:.95;letter-spacing:-.05em;margin-top:16px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p.lead{margin-top:22px;font-size:clamp(19px,2.2vw,25px);font-weight:500;color:var(--muted);max-width:40ch}
.hero .actions{margin-top:30px}
.hero{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr)}
.hero h1{font-size:clamp(64px,11vw,148px)}
.hero-3d{margin:0;display:grid;gap:10px}
.hero-3d figcaption{font-size:13px;color:var(--muted);text-align:center}
.hero3d{position:relative;aspect-ratio:5/4;border-radius:24px;overflow:hidden;background:radial-gradient(circle at 50% 45%,#34302A,#22201C 72%);box-shadow:0 0 0 1px var(--line);cursor:grab}
.hero3d:active{cursor:grabbing}
.hero3d canvas,.etiquettes{position:absolute;inset:0}
.etiquettes{pointer-events:none}
.hero3d .repli{width:100%;height:100%;display:block}
.hero3d.pret .repli{display:none}
.cote{font:600 12px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:0;padding:4px 7px;border-radius:5px;white-space:nowrap;background:#F6F4EF;color:#A8461F;box-shadow:0 0 0 1px rgb(168 70 31 / .5)}
.hero3d .cote{background:rgb(34 32 28 / .85);color:#F6F4EF;box-shadow:0 0 0 1px rgb(246 244 239 / .35)}
.tuiles.cinq{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}

.pas{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;counter-reset:pas;margin:0;padding:0}
.pas li{list-style:none;display:flex;align-items:center;gap:14px;padding:22px 0;border-top:3px solid var(--fg);counter-increment:pas}
.pas li::before{content:counter(pas,decimal-leading-zero);font-size:16px;font-weight:800;color:var(--accent)}
.pas .ico{color:var(--accent);display:inline-flex}
.pas .ico svg{width:26px;height:26px}
.pas h3{font-size:clamp(22px,2.6vw,30px);font-weight:800}

.tuiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.tuiles.deux{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.tuile{background:var(--surface);border-radius:18px;padding:26px;display:grid;gap:8px;align-content:start}
.tuile .ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:var(--surface-2);color:var(--accent);margin-bottom:6px}
.tuile .ico svg{width:24px;height:24px}
.tuile h3{font-size:clamp(21px,2.2vw,26px);font-weight:800}
.tuile p{font-size:16px;color:var(--muted);font-weight:500}

.mesure h2{font-size:clamp(44px,8vw,104px);font-weight:800;line-height:.95;letter-spacing:-.05em;margin-top:14px;max-width:12ch}
.mesure p{margin-top:20px;font-size:clamp(18px,2vw,22px);color:var(--papier-muted);max-width:52ch}
.mesure .actions{margin-top:28px}

.bandeau{background:var(--accent);color:var(--accent-ink);border-radius:24px;padding:44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.bandeau h2{font-size:clamp(32px,4.4vw,52px);font-weight:800;line-height:1}
.bandeau p{margin-top:10px;font-size:18px;font-weight:500;max-width:46ch}
.bandeau .btn.primary{background:var(--bg);color:var(--fg)}
.bandeau .btn:not(.primary){background:rgb(34 32 28 / .14);color:inherit}
.bandeau :focus-visible{outline-color:var(--bg)}

/* Modèles 3D */
.note{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border-radius:14px;padding:16px 18px;color:var(--muted);margin-bottom:22px;font-weight:500}
.note svg{width:22px;height:22px;color:var(--accent);margin-top:1px}
.galerie{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.carte3d{display:grid;width:100%;padding:0 0 16px;border:1px solid var(--line);border-radius:16px;background:var(--surface);color:var(--fg);font:inherit;text-align:left;cursor:pointer;overflow:hidden;transition:border-color .15s,transform .1s ease-out}
.carte3d:hover{border-color:var(--accent)}
.carte3d:active{transform:scale(.98)}
.vignette{position:relative;display:block;aspect-ratio:4/3;background:#F4F1EC;margin-bottom:12px}
.vignette img{width:100%;height:100%;object-fit:cover}
.voir{position:absolute;right:10px;bottom:10px;padding:5px 10px;border-radius:8px;background:var(--bg);color:var(--fg);font-size:14px;font-weight:700}
.carte3d:hover .voir{background:var(--accent);color:var(--accent-ink)}
.carte3d .type{padding:0 16px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.carte3d b{padding:4px 16px 0;font-size:19px;font-weight:800;letter-spacing:-.02em}
.carte3d .sous{padding:2px 16px 0;font-size:14.5px;color:var(--muted)}
.sans-3d .vignette,.sans-3d .voir{display:none}
.sans-3d .carte3d{cursor:default;padding-top:16px}

#visionneuse{padding:0;border:0;border-radius:20px;width:min(97vw,76rem);height:min(92svh,50rem);max-width:none;max-height:none;background:var(--papier);color:var(--papier-fg);box-shadow:0 30px 90px rgb(0 0 0 / .5)}
#visionneuse::backdrop{background:rgb(0 0 0 / .6);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.v-carte{display:grid;grid-template-rows:auto minmax(0,1fr) auto;height:100%}
.v-tete,.v-pied{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px;border-bottom:1px solid rgb(34 32 28 / .12)}
.v-pied{border-bottom:0;border-top:1px solid rgb(34 32 28 / .12);flex-wrap:wrap}
.v-tete b{display:block;font-size:19px}
#v-sous,.v-pied span{font-size:14px;color:var(--papier-muted)}
.v-tete .fermer{width:44px;padding:0;font-size:24px;flex:none}
.v-corps{display:grid;grid-template-columns:minmax(0,1fr) 19rem;min-height:0}
.scene3d{position:relative;min-height:14rem;cursor:grab;touch-action:none;background:#F4F1EC}
.scene3d:active{cursor:grabbing}
.scene3d canvas{position:absolute;inset:0;display:block}
.v-options{display:grid;align-content:start;gap:18px;padding:16px 18px;border-left:1px solid rgb(34 32 28 / .12);overflow-y:auto}
.v-options fieldset{border:0;margin:0;padding:0}
.v-options fieldset[hidden]{display:none}
.bascule{justify-self:start;background:var(--papier-2)}
.bascule[aria-pressed="true"]{background:var(--label);color:#fff}
.v-options legend{padding:0;margin-bottom:10px;font-size:14px}
.choix{color:var(--papier-muted)}
.pastilles{display:flex;flex-wrap:wrap;gap:8px}
.pastille{width:40px;height:40px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px rgb(0 0 0 / .15);cursor:pointer;padding:0;transition:transform .1s ease-out}
.pastille:active{transform:scale(.94)}
.pastille[aria-pressed="true"]{box-shadow:0 0 0 2px var(--papier),0 0 0 4px var(--label)}
.pastille:focus-visible{outline:3px solid var(--label);outline-offset:3px;border-radius:50%}

/* Comment ça marche */
.processus{list-style:none;margin:0;padding:0;display:grid;counter-reset:etape}
.processus li{display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;padding:26px 0;border-top:1px solid var(--line);counter-increment:etape}
.processus .ico{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;background:var(--surface);color:var(--accent)}
.processus .ico svg{width:26px;height:26px}
.processus h2{font-size:clamp(24px,3vw,34px);font-weight:800}
.processus h2::before{content:counter(etape) ". ";color:var(--accent)}
.processus p{margin-top:6px;color:var(--muted);font-size:17px;max-width:60ch}
.questions{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px;margin:16px 0 0}
.questions div{background:var(--surface);border-radius:12px;padding:14px 16px}
.questions dt{font-weight:800}
.questions dd{margin:4px 0 0;color:var(--muted);font-size:15px}

.matieres{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:22px}
.matiere{background:#fff;border-radius:18px;padding:24px;display:grid;gap:10px;align-content:start;box-shadow:0 0 0 1px rgb(34 32 28 / .08)}
.matiere h3{font-size:30px;font-weight:800;color:var(--label)}
.matiere p{color:var(--papier-muted)}
.matiere b{color:var(--papier-fg)}

/* Contact */
.contacts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.contact{background:var(--surface);border-radius:18px;padding:26px;display:grid;gap:14px;align-content:start}
.contact .ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:var(--surface-2);color:var(--accent)}
.contact .ico svg{width:24px;height:24px}
.contact b{font-size:20px;word-break:break-word}
.contact .btn{justify-self:start}

/* Pied de page Strate */
.pied-strate{border-top:1px solid var(--line);margin-top:24px;padding:28px 0;font-size:14px;color:var(--muted)}
.pied-strate strong{color:var(--fg)}
.pied-strate .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;align-items:center}
.pied-strate nav{display:flex;flex-wrap:wrap;gap:4px 18px}
.pied-strate a{color:var(--fg);text-decoration:none;font-weight:600;min-height:32px;display:inline-flex;align-items:center}
.pied-strate a:hover{color:var(--accent)}

@media (max-width:860px){
  .hero{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:48px;padding-bottom:16px}
  .hero3d{aspect-ratio:4/3}
  .pas{grid-template-columns:minmax(0,1fr);gap:0}
  .matieres,.contacts{grid-template-columns:minmax(0,1fr)}
  .section{padding:48px 0}
  .page-hero{padding-top:48px}
  .bandeau{padding:30px}
  .v-corps{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr) auto}
  .v-options{border-left:0;border-top:1px solid rgb(34 32 28 / .12);max-height:38svh}
}
@media (max-width:640px){
  .tuiles,.tuiles.deux{grid-template-columns:minmax(0,1fr);gap:10px}
  .tuile{padding:20px}
  .processus li{grid-template-columns:44px minmax(0,1fr);gap:14px}
  .processus .ico{width:44px;height:44px}
  #visionneuse{width:100vw;height:100svh;border-radius:0}
  .v-pied .btn{width:100%}
  .pastille{width:38px;height:38px}
}
@media (max-width:420px){
  .hero .actions .btn,.page-hero .actions .btn,.bandeau .actions .btn,.mesure .actions .btn{flex:1 1 100%;white-space:normal;text-align:center}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.menu .chev,.carte3d,.pastille{transition:none}.btn:active,.carte3d:active,.pastille:active{transform:none}}