:root{
  --noir:#0a1018; --noir2:#0f1722; --panneau:#142031; --ligne:#1f2d40;
  --or:#2fb3a0; --or-clair:#7ddccd; --gris:#8a96a6; --texte:#eef2f5; --doux:#b4bfcb;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--noir);color:var(--texte);font:400 16px/1.6 Inter,system-ui,sans-serif;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.conteneur{width:min(1180px,100% - 32px);margin-inline:auto}
h1,h2,h3,.marque{font-family:Jost,sans-serif;font-weight:400;letter-spacing:.01em}
.surtitre{font:500 12px/1 Jost,sans-serif;letter-spacing:.32em;text-transform:uppercase;color:var(--or)}
.or{color:var(--or)}

/* bandeau brouillon */
.brouillon{position:fixed;left:12px;bottom:12px;z-index:60;background:#000c;border:1px solid var(--ligne);color:var(--gris);font-size:11px;padding:6px 10px;border-radius:20px;backdrop-filter:blur(6px)}

/* navigation */
nav{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
nav.plein{background:#0a1018E6;backdrop-filter:blur(10px);border-color:var(--ligne)}
nav .conteneur{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center;gap:12px}
.logo svg{width:42px;height:auto}
.logo .marque{font-size:21px;letter-spacing:.06em;line-height:1}
.logo .marque small{display:block;font-size:9.5px;letter-spacing:.42em;color:var(--doux);margin-top:5px}
.menu{display:flex;gap:34px;font-size:14px;color:var(--doux)}
.menu a:hover{color:var(--texte)}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:2px;font:500 14px/1 Inter,sans-serif;letter-spacing:.02em;transition:.25s;cursor:pointer;border:0}
.btn-or{background:linear-gradient(135deg,var(--or-clair),var(--or));color:#03211d}
.btn-or:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ligne{border:1px solid #ffffff30;color:var(--texte);background:transparent}
.btn-ligne:hover{border-color:var(--or);color:var(--or-clair)}
nav .btn{padding:11px 18px}

/* hero */
.hero{min-height:100vh;display:grid;align-items:center;position:relative;padding:120px 0 80px;
  background:radial-gradient(ellipse 60% 50% at 72% 55%,#2fb3a014,transparent 70%),radial-gradient(ellipse at 20% 0%,#14223a,transparent 60%),var(--noir)}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff06 1px,transparent 1px),linear-gradient(90deg,#ffffff06 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse at 70% 50%,#000 20%,transparent 70%);pointer-events:none}
.hero .conteneur{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;position:relative;z-index:1}
.hero h1{font-size:clamp(40px,6vw,76px);line-height:1.02;font-weight:300;margin:22px 0 24px}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--or-clair),var(--or) 60%,#1f8a7b);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.intro{color:var(--doux);font-size:18px;max-width:520px}
.hero .actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero .preuves{display:flex;gap:28px;margin-top:48px;color:var(--gris);font-size:13px;flex-wrap:wrap}
.hero .preuves span{display:flex;align-items:center;gap:8px}
.hero .preuves i{width:6px;height:6px;border-radius:50%;background:var(--or);display:inline-block}

/* maison qui se construit */
.maison{width:100%;max-width:560px;justify-self:end}
.maison svg{width:100%;height:auto;overflow:visible}
.trait{fill:none;stroke:var(--or);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;animation:dessin 1.4s cubic-bezier(.6,0,.2,1) forwards}
.trait.fin{stroke:#2fb3a099;stroke-width:1}
.trait.gris{stroke:#6c7a8c}
@keyframes dessin{to{stroke-dashoffset:0}}
.lumiere{opacity:0;animation:allume 1.6s ease forwards}
@keyframes allume{to{opacity:1}}
.helice{transform-box:fill-box;transform-origin:center;animation:tourne 1.2s linear infinite}
@keyframes tourne{to{transform:rotate(360deg)}}
.onde{opacity:0;animation:onde 2.6s ease-in-out infinite}
@keyframes onde{0%{opacity:0;transform:translateY(6px)}40%{opacity:.9}100%{opacity:0;transform:translateY(-14px)}}
.etiquette{font:500 9px Jost,sans-serif;letter-spacing:.24em;fill:var(--gris);opacity:0;animation:allume .8s ease forwards}

/* bandeau métiers */
.metiers{border-block:1px solid var(--ligne);background:var(--noir2);overflow:hidden}
.defile{display:flex;gap:56px;padding:22px 0;width:max-content;animation:defile 38s linear infinite;font:400 15px Jost,sans-serif;letter-spacing:.28em;text-transform:uppercase;color:var(--doux)}
.defile span::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--or);margin-right:56px;vertical-align:middle}
@keyframes defile{to{transform:translateX(-50%)}}

section{padding:120px 0}
.entete{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:56px;flex-wrap:wrap}
.entete h2{font-size:clamp(32px,4.2vw,52px);line-height:1.08;font-weight:300;margin-top:16px;max-width:640px}
.entete p{color:var(--doux);max-width:420px}

/* services */
.grille{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--ligne);border:1px solid var(--ligne)}
.carte{background:var(--noir);padding:36px 30px 40px;position:relative;transition:background .3s;min-height:270px;display:flex;flex-direction:column}
.carte:hover{background:var(--panneau)}
.carte::after{content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--or);transition:width .4s}
.carte:hover::after{width:100%}
.carte svg{width:38px;height:38px;stroke:var(--or);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.carte .num{position:absolute;top:30px;right:28px;font:400 12px Jost,sans-serif;color:#5b6878;letter-spacing:.2em}
.carte h3{font-size:22px;margin:26px 0 10px}
.carte p{color:var(--gris);font-size:14px}

/* focus pompe à chaleur */
.focus{background:linear-gradient(180deg,var(--noir2),var(--noir))}
.focus .conteneur{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.visuel{aspect-ratio:4/5;border:1px solid var(--ligne);position:relative;overflow:hidden;background:
  radial-gradient(ellipse at 30% 20%,#2fb3a022,transparent 55%),linear-gradient(160deg,#16233a,#0a121c)}
.visuel .cadre{position:absolute;inset:18px;border:1px solid #2fb3a040}
.visuel .legende{position:absolute;left:34px;bottom:30px;right:34px;font-size:12px;color:var(--gris);letter-spacing:.06em}
.visuel .legende b{display:block;font:400 22px Jost,sans-serif;color:var(--texte);margin-bottom:6px;letter-spacing:.02em}
.visuel svg{position:absolute;inset:16% 14% 30%;width:72%;height:auto}
.liste{list-style:none;margin:30px 0 40px;display:grid;gap:18px}
.liste li{display:grid;grid-template-columns:28px 1fr;gap:14px;color:var(--doux)}
.liste li b{color:var(--texte);font-weight:500;display:block}
.liste svg{width:22px;height:22px;stroke:var(--or);fill:none;stroke-width:1.6;margin-top:3px}

/* méthode */
.etapes{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:e}
.etape{border-top:1px solid var(--ligne);padding-top:28px;position:relative}
.etape::before{counter-increment:e;content:"0" counter(e);font:300 54px/1 Jost,sans-serif;color:transparent;-webkit-text-stroke:1px #2fb3a080;display:block;margin-bottom:22px}
.etape::after{content:"";position:absolute;top:-1px;left:0;width:44px;height:1px;background:var(--or)}
.etape h3{font-size:21px;margin-bottom:10px}
.etape p{color:var(--gris);font-size:14px}

/* réalisations */
.galerie{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:260px 260px;gap:14px}
.photo{position:relative;overflow:hidden;border:1px solid var(--ligne);background:linear-gradient(150deg,#16233a,#0b131d)}
.photo:first-child{grid-row:span 2}
.photo .tag{position:absolute;left:20px;bottom:18px;font:500 11px Jost,sans-serif;letter-spacing:.24em;text-transform:uppercase;color:var(--or-clair)}
.photo .tag small{display:block;color:var(--gris);letter-spacing:.06em;text-transform:none;font:400 13px Inter,sans-serif;margin-top:6px}
.photo .vide{position:absolute;inset:0;display:grid;place-items:center;color:#3a4758;font-size:12px;letter-spacing:.2em;text-transform:uppercase}

/* duo */
.duo .conteneur{display:grid;grid-template-columns:1fr 1.1fr;gap:70px;align-items:center}
.portraits{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.portrait{aspect-ratio:3/4;border:1px solid var(--ligne);background:linear-gradient(170deg,#16233a,#09111b);position:relative;display:grid;place-items:end start;padding:22px}
.portrait:nth-child(2){margin-top:48px}
.portrait b{font:400 26px Jost,sans-serif;display:block}
.portrait span{color:var(--gris);font-size:13px}
.portrait svg{position:absolute;inset:18% 26% auto;width:48%;stroke:#39465a;fill:none;stroke-width:1.2}
.citation{font:300 clamp(24px,2.6vw,34px)/1.3 Jost,sans-serif;margin:24px 0 28px}
.citation::before{content:"“";color:var(--or);font-size:1.4em;line-height:0;vertical-align:-.3em;margin-right:6px}

/* devis */
.devis{background:radial-gradient(ellipse at 80% 0%,#2fb3a018,transparent 55%),var(--noir2);border-top:1px solid var(--ligne)}
.devis .conteneur{display:grid;grid-template-columns:1fr 1.15fr;gap:70px}
.contacts{display:grid;gap:14px;margin-top:36px}
.contacts a{display:flex;align-items:center;gap:16px;padding:20px 22px;border:1px solid var(--ligne);transition:.25s}
.contacts a:hover{border-color:var(--or)}
.contacts svg{width:22px;stroke:var(--or);fill:none;stroke-width:1.6}
.contacts b{font:400 20px Jost,sans-serif;letter-spacing:.04em}
.contacts small{display:block;color:var(--gris);font-size:12px}
form{background:var(--noir);border:1px solid var(--ligne);padding:40px}
form h3{font-size:24px;margin-bottom:6px}
form>p{color:var(--gris);font-size:14px;margin-bottom:28px}
.puces{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.puces label{cursor:pointer}
.puces input{display:none}
.puces span{display:block;padding:10px 16px;border:1px solid var(--ligne);font-size:13px;color:var(--doux);transition:.2s}
.puces input:checked+span{border-color:var(--or);color:var(--or-clair);background:#2fb3a012}
.champs{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.champ{display:grid;gap:8px}
.champ.large{grid-column:1/-1}
.champ label{font-size:12px;color:var(--gris);letter-spacing:.08em;text-transform:uppercase}
.champ input,.champ textarea{background:var(--noir2);border:1px solid var(--ligne);color:var(--texte);padding:14px 16px;font:inherit;font-size:15px;outline:none;transition:border-color .2s}
.champ input:focus,.champ textarea:focus{border-color:var(--or)}
.champ textarea{min-height:110px;resize:vertical}
form .btn{width:100%;justify-content:center;margin-top:22px;padding:18px}
.envoye{display:none;margin-top:16px;color:var(--or-clair);font-size:14px;text-align:center}

footer{border-top:1px solid var(--ligne);padding:56px 0 90px;color:var(--gris);font-size:13px}
footer .conteneur{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:center}
footer .devise{font:500 11px Jost,sans-serif;letter-spacing:.3em;color:var(--or)}

.appel-mobile{display:none}

/* apparition au défilement */
.monte{opacity:0;transform:translateY(26px);transition:opacity .9s ease,transform .9s ease}
.monte.vu{opacity:1;transform:none}

@media (max-width:980px){
  .menu{display:none}
  .hero .conteneur,.focus .conteneur,.duo .conteneur,.devis .conteneur{grid-template-columns:1fr}
  .maison{justify-self:center;max-width:460px;order:-1}
  .hero{padding-top:100px}
  .grille{grid-template-columns:1fr 1fr}
  .etapes{grid-template-columns:1fr 1fr;gap:40px 28px}
  .galerie{grid-template-columns:1fr 1fr;grid-template-rows:240px 180px 180px}
  .photo:first-child{grid-column:1/-1;grid-row:auto}
  section{padding:84px 0}
}
@media (max-width:600px){
  nav .btn{display:none}
  .grille{grid-template-columns:1fr}
  .carte{min-height:0}
  .etapes{grid-template-columns:1fr}
  .champs{grid-template-columns:1fr}
  form{padding:26px 20px}
  .hero h1{font-size:40px}
  .appel-mobile{display:flex;position:fixed;inset:auto 12px 12px;z-index:55;justify-content:center;transform:translateY(140%);transition:transform .35s}
  .appel-mobile.visible{transform:none}
  .brouillon{display:none}
  footer{padding-bottom:110px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.trait{stroke-dashoffset:0}.lumiere,.etiquette{opacity:1}.monte{opacity:1;transform:none}}

/* ═══ v2 : pages métier, maison en coupe, devis en étapes, FAQ ═══ */
.h2{font-size:clamp(32px,4.2vw,52px);line-height:1.08;font-weight:300;margin-top:16px;font-family:Jost,sans-serif}
.doux{color:var(--doux)}
.lien-or{display:inline-flex;align-items:center;gap:8px;color:var(--or-clair);font-size:13px;letter-spacing:.04em;margin-top:auto;padding-top:22px}
.lien-or svg{transition:transform .25s}
a:hover>.lien-or svg,.lien-or:hover svg{transform:translateX(4px)}
a.carte{color:inherit}

/* menu déroulant + tiroir mobile */
.deroulant{position:relative}
.deroulant>a{display:inline-flex;align-items:center;gap:6px}
.chevron{width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);display:inline-block}
.sous-menu{position:absolute;top:calc(100% + 18px);left:-24px;display:grid;grid-template-columns:1fr 1fr;gap:2px;width:420px;padding:10px;background:#0f1722f2;border:1px solid var(--ligne);backdrop-filter:blur(12px);opacity:0;visibility:hidden;transform:translateY(-6px);transition:.25s}
.sous-menu::before{content:"";position:absolute;inset:-20px 0 auto;height:20px}
.deroulant:hover .sous-menu,.deroulant:focus-within .sous-menu{opacity:1;visibility:visible;transform:none}
.sous-menu a{display:flex;align-items:center;gap:12px;padding:12px 14px;color:var(--doux)}
.sous-menu a:hover,.sous-menu a.actif{background:#2fb3a012;color:var(--texte)}
.sous-menu svg{width:22px;height:22px;stroke:var(--or);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none}
.burger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;position:relative}
.burger span{position:absolute;left:11px;right:11px;height:1.5px;background:var(--texte);transition:.3s}
.burger span:first-child{top:17px}.burger span:last-child{top:26px}
nav.ouvert .burger span:first-child{top:21px;transform:rotate(45deg)}
nav.ouvert .burger span:last-child{top:21px;transform:rotate(-45deg)}
.tiroir{display:none}

/* emplacements médias */
.media{display:block;width:100%;height:100%;object-fit:cover}
.maison .media{aspect-ratio:16/10;border:1px solid var(--ligne)}
.maison .media~svg{display:none}
.visuel .media,.photo .media,.portrait .media{position:absolute;inset:0}
.visuel .media~svg,.visuel .media~.cadre,.photo .media~.vide,.portrait .media~svg{display:none}
.photo .media~.tag,.portrait .media~div{position:relative;z-index:1;text-shadow:0 1px 12px #000}
.portrait{overflow:hidden}
.photo::after,.portrait::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,#000a);pointer-events:none}
.photo .tag,.portrait>div{z-index:1}

/* maison en coupe */
.maison-coupe{background:linear-gradient(180deg,var(--noir),var(--noir2));border-top:1px solid var(--ligne)}
.coupe{display:grid;grid-template-columns:1.55fr 1fr;gap:40px;align-items:center}
.plan{width:100%;height:auto;border:1px solid var(--ligne);background:#09111b}
.plan .t path,.plan .t rect,.plan .t circle{fill:none;stroke:var(--or);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.plan .t .fin{stroke:#2fb3a08c;stroke-width:1.1}
.plan .t .pointille{stroke-dasharray:4 4;animation:flux 1.2s linear infinite}
@keyframes flux{to{stroke-dashoffset:-16}}
.onde-svg{animation:respire 2.4s ease-in-out infinite}
@keyframes respire{50%{opacity:.25}}
.zone{fill:#2fb3a0;fill-opacity:0;stroke:none;transition:fill-opacity .4s}
.zone.actif{fill-opacity:.09}
.point{cursor:pointer;outline:none}
.point circle{fill:#09111b;stroke:var(--or);stroke-width:1.5;transition:.3s}
.point .coeur{fill:var(--or);stroke:none}
.point .pouls{fill:none;stroke:var(--or);opacity:.7;transform-box:fill-box;transform-origin:center;animation:pouls 2.2s ease-out infinite}
@keyframes pouls{to{transform:scale(2.6);opacity:0}}
.point:hover circle:not(.pouls),.point:focus circle:not(.pouls),.point.actif circle:not(.pouls){fill:var(--or)}
.point.actif .coeur,.point:hover .coeur{fill:#09111b}
.panneau{min-height:380px}
.onglets{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.onglet{background:none;border:1px solid var(--ligne);color:var(--gris);padding:8px 13px;font:400 12.5px Inter,sans-serif;cursor:pointer;transition:.2s}
.onglet:hover{color:var(--texte)}
.onglet.actif{border-color:var(--or);color:var(--or-clair);background:#2fb3a012}
.fiche{display:none;animation:apparait .45s ease}
.fiche.actif{display:block}
@keyframes apparait{from{opacity:0;transform:translateY(10px)}}
.fiche-tete{display:flex;align-items:center;gap:16px;margin-bottom:14px}
.fiche-tete svg{width:44px;height:44px;stroke:var(--or);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.fiche h3{font-size:30px}
.fiche>p{color:var(--doux)}
.fiche ul{list-style:none;margin:20px 0 4px;display:grid;gap:10px}
.fiche li{padding-left:22px;position:relative;color:var(--doux);font-size:14.5px}
.fiche li::before{content:"";position:absolute;left:0;top:11px;width:10px;height:1px;background:var(--or)}

/* FAQ */
.faq-grille{display:grid;grid-template-columns:1fr 1.4fr;gap:70px}
.questions{border-top:1px solid var(--ligne)}
.q{border-bottom:1px solid var(--ligne)}
.q summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:24px 0;font:400 19px Jost,sans-serif}
.q summary::-webkit-details-marker{display:none}
.q summary i{width:14px;height:14px;position:relative;flex:none}
.q summary i::before,.q summary i::after{content:"";position:absolute;left:0;right:0;top:6.5px;height:1px;background:var(--or);transition:.3s}
.q summary i::after{transform:rotate(90deg)}
.q[open] summary i::after{transform:none}
.q p{color:var(--doux);padding:0 40px 26px 0}

/* devis en étapes */
.assistant{position:relative;overflow:hidden}
.progression{position:absolute;inset:0 0 auto;height:2px;background:var(--ligne)}
.progression i{display:block;height:100%;width:25%;background:linear-gradient(90deg,var(--or),var(--or-clair));transition:width .5s}
.pas{display:none;border:0;animation:apparait .4s ease}
.pas.actif{display:block}
.pas legend{font:400 24px Jost,sans-serif;margin-bottom:6px}
.pas>p{color:var(--gris);font-size:14px;margin:14px 0 12px}
.navigation{display:flex;gap:12px;margin-top:26px}
form .navigation .btn{width:auto;margin:0;padding:15px 22px}
.navigation .suivant{flex:1;justify-content:center}
.navigation .precedent{visibility:hidden}
.erreur{color:#ff8f7f;font-size:13px;min-height:18px;margin-top:12px}
.pas.fin{text-align:center;padding:10px 0}
.pas.fin .btn{width:100%;justify-content:center}
.pas.fin h3{font-size:26px;margin:16px 0 14px}
.recap{text-align:left;background:var(--noir2);border:1px solid var(--ligne);padding:18px 20px;font-size:14px;color:var(--doux);margin-bottom:22px;display:grid;gap:6px}
.recap b{color:var(--texte);font-weight:500}
.coche svg{width:64px;height:64px;fill:none;stroke:var(--or);stroke-width:2;stroke-linecap:round}
.coche circle{stroke-dasharray:151;stroke-dashoffset:151;animation:trace .8s ease forwards}
.coche path{stroke-dasharray:40;stroke-dashoffset:40;animation:trace .5s .6s ease forwards}
@keyframes trace{to{stroke-dashoffset:0}}

/* pages métier */
.hero-metier{position:relative;padding:150px 0 100px;overflow:hidden;background:radial-gradient(ellipse 50% 60% at 78% 50%,#2fb3a016,transparent 70%),var(--noir);border-bottom:1px solid var(--ligne)}
.hero-metier .media.fond{position:absolute;inset:0;opacity:.38}
.hero-metier.avec-media::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--noir) 30%,transparent);z-index:0}
.hero-metier .conteneur{position:relative;z-index:1}
.fil{display:flex;gap:10px;color:var(--gris);font-size:13px;margin-bottom:40px;flex-wrap:wrap}
.fil a:hover{color:var(--or-clair)}
.hero-metier-grille{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;align-items:center}
.hero-metier h1{font-size:clamp(38px,5.4vw,68px);line-height:1.04;font-weight:300;margin:20px 0 24px}
.hero-metier h1 em{font-style:normal;background:linear-gradient(120deg,var(--or-clair),var(--or) 60%,#1f8a7b);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-metier .intro{color:var(--doux);font-size:18px;max-width:560px}
.hero-metier .actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.grand-picto{position:relative;aspect-ratio:1;max-width:380px;justify-self:end;width:100%;display:grid;place-items:center;border:1px solid var(--ligne);background:repeating-linear-gradient(0deg,#ffffff05 0 1px,transparent 1px 32px),repeating-linear-gradient(90deg,#ffffff05 0 1px,transparent 1px 32px)}
.grand-picto svg{width:52%;stroke:var(--or);fill:none;stroke-width:.9;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:200;stroke-dashoffset:200;animation:dessin-picto 2.4s .3s ease forwards}
@keyframes dessin-picto{to{stroke-dashoffset:0}}
.cadre-plan{position:absolute;inset:16px;border:1px solid #2fb3a033}
.cadre-plan::before,.cadre-plan::after{content:"";position:absolute;width:18px;height:18px;border-color:var(--or);border-style:solid}
.cadre-plan::before{top:-1px;left:-1px;border-width:1px 0 0 1px}
.cadre-plan::after{bottom:-1px;right:-1px;border-width:0 1px 1px 0}
.prestations{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--ligne);border:1px solid var(--ligne)}
.prest{background:var(--noir);padding:34px 30px;position:relative}
.prest .num{font:400 12px Jost,sans-serif;letter-spacing:.2em;color:var(--or)}
.prest h3{font-size:22px;margin:16px 0 8px}
.prest p{color:var(--gris);font-size:14px}
.bandeau-cta{text-align:center;background:radial-gradient(ellipse at 50% 0%,#2fb3a01c,transparent 60%),var(--noir2);border-block:1px solid var(--ligne)}
.bandeau-cta .actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:36px}
.autres{padding:80px 0}
.minis{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;margin-top:24px}
.mini{display:grid;justify-items:center;gap:10px;padding:22px 8px;border:1px solid var(--ligne);font-size:13px;color:var(--doux);text-align:center;transition:.25s}
.mini:hover{border-color:var(--or);color:var(--texte)}
.mini svg{width:28px;height:28px;stroke:var(--or);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}

/* pied de page */
footer .conteneur.pied{display:grid;grid-template-columns:1.4fr 1.2fr 1fr;gap:40px;align-items:start}
footer h4{font:500 11px Jost,sans-serif;letter-spacing:.24em;text-transform:uppercase;color:var(--texte);margin-bottom:16px}
.liens-pied{display:grid;gap:8px}
.liens-pied a:hover{color:var(--or-clair)}
footer .conteneur.bas-pied{margin-top:50px;padding-top:24px;border-top:1px solid var(--ligne);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}

@media (max-width:980px){
  .burger{display:block}
  nav .btn{display:none}
  .tiroir{display:grid;gap:4px;padding:0 16px;max-height:0;overflow:hidden;transition:max-height .4s,padding .4s;background:#0a1018f5}
  nav.ouvert{background:#0a1018f5}
  nav.ouvert .tiroir{max-height:640px;padding:6px 16px 22px}
  .tiroir a{padding:13px 4px;border-bottom:1px solid var(--ligne);color:var(--doux)}
  .tiroir .btn{display:flex;justify-content:center;margin-top:14px;border:0;color:#03211d}
  .coupe,.faq-grille,.hero-metier-grille{grid-template-columns:1fr}
  .faq-grille{gap:36px}
  .grand-picto{justify-self:start;max-width:260px}
  .prestations{grid-template-columns:1fr 1fr}
  .minis{grid-template-columns:repeat(4,1fr)}
  footer .conteneur.pied{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .prestations{grid-template-columns:1fr}
  .minis{grid-template-columns:repeat(2,1fr)}
  .hero-metier{padding:120px 0 70px}
  .grand-picto{display:none}
  footer .conteneur.pied{grid-template-columns:1fr}
  .fiche h3{font-size:25px}
  .panneau{min-height:0}
}
@media (max-width:700px){
  .point{transform-box:fill-box;transform-origin:center;transform:scale(2)}
  .plan{margin-inline:-6px;width:calc(100% + 12px)}
}

/* toit du logo dans la maison qui se construit */
.toit{opacity:0}
.toit-g{animation:pose-g 1.1s 2.3s cubic-bezier(.2,.9,.25,1) forwards}
.toit-d{animation:pose-d 1.1s 2.55s cubic-bezier(.2,.9,.25,1) forwards}
@keyframes pose-g{from{opacity:0;transform:translate(-26px,-46px)}to{opacity:1;transform:none}}
@keyframes pose-d{from{opacity:0;transform:translate(26px,-46px)}to{opacity:1;transform:none}}
.carreau{opacity:0;transform-box:fill-box;transform-origin:center;animation:carreau .45s cubic-bezier(.3,1.6,.5,1) forwards}
@keyframes carreau{from{opacity:0;transform:scale(.2)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.toit,.carreau{opacity:1}}

/* ═══ maison en coupe v3 : systèmes vivants ═══ */
.plan .sys path,.plan .sys rect,.plan .sys circle{fill:none;stroke:var(--or);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.plan .sys .fin{stroke:#2fb3a099;stroke-width:1.1}
.plan .sys .plein{fill:var(--or)}
.plan .terre{stroke:#ffffff1a!important}
.sys{opacity:.42;transition:opacity .5s,filter .5s}
.sys.actif{opacity:1;filter:drop-shadow(0 0 5px #2fb3a080)}
.sys .anim{animation-play-state:paused}
.sys.actif .anim{animation-play-state:running}
.plan .sys .isolant{stroke:#7ddccd;stroke-width:1.2;stroke-dasharray:3 0}
.sys.actif .isolant{animation:isole 1.8s ease-in-out infinite}
@keyframes isole{50%{stroke:#fff3cf;stroke-width:1.8}}
.plan .sys .flux,.plan .sys .courant,.plan .sys .fluide,.plan .sys .eau{stroke-dasharray:5 6;animation:flux-coupe 1s linear infinite}
.plan .sys .courant{stroke:#ffe9a8;stroke-dasharray:2 10;stroke-width:2}
.plan .sys .eau{stroke:#e9efe9;stroke-dasharray:3 7;animation-direction:reverse}
.plan .sys .fluide{stroke-dasharray:8 6}
@keyframes flux-coupe{to{stroke-dashoffset:-22}}
.plan .sys .goutte{stroke:#eef3f0;stroke-width:1.4;animation:goutte .8s linear infinite}
@keyframes goutte{from{transform:translateY(0);opacity:1}to{transform:translateY(56px);opacity:0}}
.plan .sys .froid{stroke:#cfe6ef;animation:froid 1.6s ease-in infinite;opacity:0}
@keyframes froid{0%{transform:translateY(0);opacity:0}30%{opacity:1}100%{transform:translateY(34px);opacity:0}}
.plan .sys .chaleur{stroke:#f2c56b;animation:chaleur 1.5s ease-out infinite;opacity:0}
@keyframes chaleur{0%{transform:translateY(0);opacity:0}30%{opacity:1}100%{transform:translateY(-26px);opacity:0}}
.plan .sys .sol{stroke:#f2c56b;animation:respire 1.4s ease-in-out infinite}
.plan .sys .ampoule{fill:#09111b;transition:fill .4s}
.sys.actif .ampoule{fill:#ffe9a8}
.plan .sys .halo{fill:url(#lueur);stroke:none;opacity:0;transition:opacity .6s}
.sys.actif .halo{opacity:.7}
.helice-pac{transform-box:fill-box;transform-origin:center;animation:tourne 2.4s linear infinite}
.sys.actif .helice-pac{animation-duration:.5s}
.plan .zone{fill:#2fb3a0;fill-opacity:0;stroke:none}
.plan .zone.actif{fill-opacity:.07}
.toit-coupe{opacity:.9}
.etiq{opacity:0;transform:translateY(4px);transition:.35s;pointer-events:none}
.etiq.actif{opacity:1;transform:none}
.etiq rect{fill:#09111be6;stroke:var(--or);stroke-width:1}
.etiq text{fill:var(--or-clair);font:500 11.5px Jost,sans-serif;letter-spacing:.06em;text-anchor:middle}
.panneau-haut{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.compteur{font:300 14px Jost,sans-serif;color:var(--gris);letter-spacing:.12em}
.compteur b{font-weight:400;font-size:30px;color:var(--texte);letter-spacing:0}
.fleches{display:flex;gap:8px}
.fl{width:42px;height:42px;border:1px solid var(--ligne);background:none;color:var(--texte);font-size:17px;cursor:pointer;transition:.2s}
.fl:hover{border-color:var(--or);color:var(--or-clair)}
.minuteur{height:1px;background:var(--ligne);margin-bottom:22px;overflow:hidden}
.minuteur i{display:block;height:100%;width:0;background:var(--or)}
.minuteur.court i{animation:minuteur 4.2s linear forwards}
.minuteur.fige{opacity:0}
@keyframes minuteur{to{width:100%}}
.fiche-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:24px}
.fiche-actions .lien-or{margin:0;padding:0}
.fiche-actions .btn{padding:12px 18px}
@media (max-width:600px){
  .onglets{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-inline:-16px;padding-inline:16px}
  .onglets::-webkit-scrollbar{display:none}
  .onglet{flex:none}
  .etiq text{font-size:15px}
}
.annonce{position:fixed;top:0;left:0;right:0;z-index:51;background:linear-gradient(90deg,var(--or),var(--or-clair));color:#03211d;text-align:center;font:500 13px Inter,sans-serif;padding:9px 16px}
body.avec-annonce nav{top:36px}
.espace-pro:hover{color:var(--or-clair)}
.infos-pratiques{display:grid;gap:6px;margin-top:22px;color:var(--doux);font-size:14px;padding-left:16px;border-left:1px solid var(--or)}

/* vidéos de chantier */
.chantier-video{background:radial-gradient(ellipse 60% 50% at 50% 60%,#2fb3a012,transparent 70%),var(--noir);border-top:1px solid var(--ligne)}
.videos-duo{display:grid;grid-template-columns:repeat(2,minmax(0,330px));justify-content:center;gap:56px}
.tel-video{margin:0}
.tel-video video{display:block;width:100%;aspect-ratio:9/16;object-fit:cover;background:#111;border:1px solid #2fb3a055;border-radius:26px;box-shadow:0 30px 80px #000a,0 0 0 8px #0e1621,0 0 0 9px #22324a}
.tel-video.decale{margin-top:70px}
.tel-video figcaption{margin-top:28px;color:var(--gris);font-size:14px;max-width:300px}
.tel-video figcaption b{display:block;font:400 22px Jost,sans-serif;color:var(--texte);margin:8px 0 4px}
.tel-video .num{font:500 12px Jost,sans-serif;letter-spacing:.2em;color:var(--or)}
.mention{text-align:center;color:#5b6878;font-size:12px;margin-top:40px}
/* équipe : photo du duo (remplacée par les portraits s'ils existent) */
.duo-photo{position:relative;margin:0;aspect-ratio:4/5;overflow:hidden;border:1px solid var(--ligne);background:linear-gradient(170deg,#16233a,#09111b)}
.duo-photo .media{position:absolute;inset:0}
.duo-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,#000c)}
.duo-photo figcaption{position:absolute;left:26px;bottom:22px;z-index:1}
.duo-photo figcaption b{display:block;font:400 28px Jost,sans-serif}
.duo-photo figcaption span{color:var(--doux);font-size:13px}
.illus{position:absolute;top:14px;right:14px;z-index:1;font:500 10px Inter;letter-spacing:.08em;text-transform:uppercase;color:#ffffffb0;background:#0008;padding:4px 8px;border-radius:10px;font-style:normal}
.duo-photo:not(:has(.media)){display:none}
.equipe-visuel .portraits{display:none}
.equipe-visuel:not(:has(.duo-photo .media)) .portraits,.equipe-visuel.avec-portraits .portraits{display:grid}
.equipe-visuel.avec-portraits .duo-photo{display:none}
@media (max-width:600px){
  .videos-duo{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .tel-video video{border-radius:16px;box-shadow:0 18px 40px #000a,0 0 0 4px #0e1621,0 0 0 5px #22324a}
  .tel-video.decale{margin-top:40px}
  .tel-video figcaption{font-size:12.5px;margin-top:16px}
  .tel-video figcaption b{font-size:18px}
}
.coupe>*{min-width:0}
.hero-metier.avec-media .grand-picto{display:none}
.hero-metier.avec-media .media.fond{opacity:.62}
.hero-metier.avec-media::before{background:linear-gradient(90deg,var(--noir) 28%,#0a1018cc 48%,transparent 80%),linear-gradient(0deg,var(--noir),transparent 30%)}
@media (max-width:980px){.hero-metier.avec-media::before{background:linear-gradient(0deg,var(--noir) 35%,#0a1018b3)}}
.hero-metier .media.fond{z-index:0}
.hero-metier.avec-media::before{z-index:1}
.hero-metier.avec-media .conteneur{z-index:2}
/* ═══ v4 : maison qui se construit au défilement, avant/après ═══ */
.defilement{position:relative;height:340vh;background:var(--noir);border-top:1px solid var(--ligne)}
.scene-def{position:sticky;top:0;height:100vh;display:flex;align-items:center;overflow:hidden}
.scene-grille{display:grid;grid-template-columns:1fr minmax(0,440px);gap:70px;align-items:center}
.etapes-def{list-style:none;margin-top:34px;display:grid;gap:6px}
.etapes-def li{padding:16px 0 16px 22px;border-left:1px solid var(--ligne);color:#5b6878;transition:color .4s,border-color .4s;font-size:14.5px}
.etapes-def li span{font:500 11px Jost,sans-serif;letter-spacing:.2em;margin-right:10px}
.etapes-def li b{font:400 21px Jost,sans-serif;display:inline;margin-right:8px;color:inherit}
.etapes-def li.actif{color:var(--doux);border-color:var(--or)}
.etapes-def li.actif b{color:var(--texte)}
.etapes-def li.actif span{color:var(--or)}
.cadre-def{position:relative;height:min(82vh,780px);aspect-ratio:9/16;justify-self:end;border-radius:22px;overflow:hidden;border:1px solid #2fb3a055;box-shadow:0 40px 90px #000c,0 0 0 8px #0e1621,0 0 0 9px #22324a;background:#111}
.cadre-def canvas,.repli-def{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cadre-def canvas{z-index:1}
.barre-def{position:absolute;left:16px;right:16px;bottom:16px;height:3px;background:#ffffff30;border-radius:3px;z-index:2;overflow:hidden}
.barre-def i{display:block;height:100%;width:0;background:var(--or)}
.cadre-def .illus,.aa .illus{z-index:3}
.illus{position:absolute;top:14px;right:14px;font:500 10px Inter;letter-spacing:.08em;text-transform:uppercase;color:#ffffffb0;background:#0008;padding:4px 8px;border-radius:10px;font-style:normal}
/* avant / après */
.avant-apres{background:linear-gradient(180deg,var(--noir),var(--noir2))}
.aa-grille{display:grid;grid-template-columns:1fr minmax(0,460px);gap:70px;align-items:center}
.aa-liste{list-style:none;margin-top:26px;display:grid;gap:10px}
.aa-liste li{padding-left:22px;position:relative;color:var(--doux)}
.aa-liste li::before{content:"";position:absolute;left:0;top:12px;width:10px;height:1px;background:var(--or)}
.aa{position:relative;aspect-ratio:4/5;overflow:hidden;border:1px solid var(--ligne);border-radius:6px;box-shadow:0 30px 80px #000a;user-select:none;touch-action:pan-y}
.aa-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 55%;pointer-events:none}
.aa-avant{position:absolute;inset:0;clip-path:inset(0 calc(100% - var(--pos)) 0 0)}
.aa-ligne{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;margin-left:-1px;background:var(--or-clair);pointer-events:none;z-index:2}
.aa-ligne i{position:absolute;top:50%;left:50%;width:46px;height:46px;margin:-23px 0 0 -23px;border-radius:50%;background:#0a1018cc;border:1.5px solid var(--or-clair);backdrop-filter:blur(4px)}
.aa-ligne i::before,.aa-ligne i::after{content:"";position:absolute;top:50%;width:8px;height:8px;margin-top:-4px;border-top:1.5px solid var(--or-clair);border-left:1.5px solid var(--or-clair)}
.aa-ligne i::before{left:11px;transform:rotate(-45deg)}
.aa-ligne i::after{right:11px;transform:rotate(135deg)}
.etiq-aa{position:absolute;bottom:16px;z-index:2;font:500 11px Jost,sans-serif;letter-spacing:.2em;text-transform:uppercase;background:#0a1018cc;padding:6px 10px;border-radius:12px;pointer-events:none}
.etiq-aa.g{left:16px}.etiq-aa.d{right:16px;color:var(--or-clair)}
.aa-range{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;z-index:3;margin:0}
@media (max-width:900px){
  .defilement{height:300vh}
  .scene-grille{grid-template-columns:1fr;gap:18px}
  .texte-def .h2{font-size:28px}
  .texte-def .surtitre{display:none}
  .etapes-def{margin-top:12px;gap:0}
  .etapes-def li{display:none;border:0;padding:4px 0}
  .etapes-def li.actif{display:block}
  .cadre-def{order:-1;justify-self:center;height:58vh;border-radius:16px;box-shadow:0 20px 50px #000c,0 0 0 4px #0e1621,0 0 0 5px #22324a}
  .aa-grille{grid-template-columns:1fr;gap:34px}
}
@media (prefers-reduced-motion:reduce){.defilement{height:auto}.scene-def{position:static;height:auto;padding:90px 0}}

/* ═══ ouverture épinglée : la maison se construit au défilement ═══ */
.hero.epinglee{display:block;min-height:0;height:260vh;padding:0}
.hero.epinglee>.conteneur{position:sticky;top:0;height:100vh;height:100svh;padding:96px 0 40px;align-content:center}
.indice-defil{display:none}
.hero.epinglee .indice-defil{display:flex;flex-direction:column;align-items:center;gap:10px;position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:5;
  font:500 11px Jost,sans-serif;letter-spacing:.28em;text-transform:uppercase;color:var(--or-clair);transition:opacity .4s;pointer-events:none;white-space:nowrap}
.indice-defil i{width:22px;height:34px;border:1.5px solid #7ddccd99;border-radius:12px;position:relative}
.indice-defil i::after{content:"";position:absolute;left:50%;top:7px;width:3px;height:7px;margin-left:-1.5px;border-radius:2px;background:var(--or-clair);animation:molette 1.6s ease-in-out infinite}
@keyframes molette{0%{opacity:0;transform:translateY(-3px)}40%{opacity:1}100%{opacity:0;transform:translateY(9px)}}
.indice-defil.cache{opacity:0}
@media (max-width:980px){
  .hero.epinglee{height:230vh}
  .hero.epinglee>.conteneur{padding:84px 0 24px;gap:10px;align-content:start}
  .hero.epinglee .maison{max-width:min(430px,92%);margin-top:4px}
  .hero.epinglee h1{font-size:clamp(32px,9.4vw,42px);margin:12px 0 12px}
  .hero.epinglee p.intro{font-size:15.5px}
  .hero.epinglee .actions{margin-top:20px;gap:10px}
  .hero.epinglee .actions .btn{padding:13px 18px}
  .hero.epinglee .preuves{display:none}
  .hero.epinglee .indice-defil{bottom:18px}
}
@media (max-width:980px) and (max-height:720px){
  .hero.epinglee .maison{max-width:min(330px,80%)}
  .hero.epinglee p.intro{display:none}
}