/* =========================================================================
   COUVERTURE · ZINGUERIE D'ART — Feuille de style
   Identité : matière ardoise (classicisme) × zinc (atelier / industrie)
   Display  : Cormorant Garamond  ·  Texte/UI : Archivo
   ========================================================================= */

:root{
  /* Matière ardoise (du plus profond au gris zinc) */
  --ardoise-900:#181C20;
  --ardoise-800:#21272D;
  --ardoise-700:#2C343B;
  --ardoise-600:#3B454E;
  --zinc-500:#677079;
  --zinc-400:#8E979E;
  --zinc-300:#B7BEC3;

  /* Pierre de taille / chaux */
  --pierre-100:#F1ECE3;
  --pierre-50:#F8F5EF;
  --craie:#FFFFFF;

  /* Cuivre patiné — accent unique, employé avec parcimonie (épis, comptoir) */
  --cuivre:#A96B38;
  --cuivre-clair:#C08A55;
  --cuivre-fonce:#7E4F28;

  --ink:#1B2024;
  --paper:#E9E4DB;

  --font-display:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --font-body:"Archivo","Helvetica Neue",system-ui,sans-serif;

  --maxw:1200px;
  --gut:clamp(20px,5vw,64px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--pierre-50);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.05;margin:0}

/* ---- Type display ---- */
.display{
  font-family:var(--font-display);
  font-weight:600;
  letter-spacing:-.01em;
}
.eyebrow{
  font-family:var(--font-body);
  font-size:12px;font-weight:600;
  letter-spacing:.26em;text-transform:uppercase;
  color:var(--cuivre);
  display:inline-flex;align-items:center;gap:.7em;
}
.eyebrow::before{
  content:"";width:26px;height:1px;background:var(--cuivre);opacity:.7;
}
.eyebrow.on-dark{color:var(--cuivre-clair)}
.eyebrow.on-dark::before{background:var(--cuivre-clair)}

.lead{font-size:clamp(18px,2vw,21px);color:var(--ardoise-700)}

.container{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}

/* =====================  ÉCAILLE — motif signature  ====================== */
/* Bandeau de transition évoquant la pose d'ardoise à l'écaille */
.ecaille-band{
  height:30px;width:100%;
  background-image:radial-gradient(circle at 50% 0,transparent 13px,var(--ardoise-800) 14px);
  background-size:30px 30px;background-position:0 0;
  background-color:transparent;
}
.ecaille-band.light{
  background-image:radial-gradient(circle at 50% 0,transparent 13px,var(--pierre-100) 14px);
}

/* =========================  HEADER / NAV  =============================== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(24,28,32,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav{
  display:flex;align-items:center;gap:18px;
  max-width:var(--maxw);margin-inline:auto;
  padding:14px var(--gut);
}
.brand{display:flex;flex-direction:column;line-height:1;margin-right:auto}
.brand .mark{
  font-family:var(--font-display);font-weight:700;font-size:23px;
  letter-spacing:.02em;color:var(--craie);
}
.brand .mark b{color:var(--cuivre-clair);font-weight:700}
.brand .sub{
  font-family:var(--font-body);font-size:10px;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;color:var(--zinc-400);
  margin-top:5px;
}
.menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.menu a{
  color:var(--paper);font-size:14px;font-weight:500;
  padding:9px 13px;border-radius:6px;transition:.2s var(--ease);
  display:inline-block;
}
.menu a:hover,.menu a[aria-current="page"]{background:rgba(255,255,255,.08);color:var(--craie)}
.menu a[aria-current="page"]{color:var(--cuivre-clair)}

.has-sub{position:relative}
.has-sub>button{
  font-family:var(--font-body);background:none;border:none;cursor:pointer;
  color:var(--paper);font-size:14px;font-weight:500;
  padding:9px 13px;border-radius:6px;display:inline-flex;align-items:center;gap:6px;
}
.has-sub>button:hover{background:rgba(255,255,255,.08)}
.has-sub>button svg{transition:transform .2s var(--ease)}
.has-sub:hover>button svg,.has-sub:focus-within>button svg{transform:rotate(180deg)}
.submenu{
  position:absolute;top:calc(100% + 6px);left:0;min-width:230px;
  background:var(--ardoise-800);border:1px solid rgba(255,255,255,.1);
  border-radius:10px;padding:8px;list-style:none;margin:0;
  box-shadow:0 24px 50px -18px rgba(0,0,0,.7);
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:.18s var(--ease);
}
.has-sub:hover .submenu,.has-sub:focus-within .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:block;padding:10px 12px;font-size:14px;border-radius:6px}
.submenu a small{display:block;color:var(--zinc-400);font-size:11.5px;font-weight:400;margin-top:1px}

.nav-cta{
  background:var(--cuivre);color:var(--craie);
  padding:10px 18px;border-radius:7px;font-weight:600;font-size:14px;
  transition:.2s var(--ease);white-space:nowrap;
}
.nav-cta:hover{background:var(--cuivre-clair)}
.nav-phone{
  color:var(--paper);font-weight:600;font-size:14px;white-space:nowrap;
  padding:9px 8px;display:inline-flex;align-items:center;gap:7px;
}
.nav-phone:hover{color:var(--cuivre-clair)}

.burger{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.burger span{width:24px;height:2px;background:var(--paper);display:block;transition:.2s}

/* =========================  HERO  ====================================== */
.hero{position:relative;min-height:clamp(560px,82vh,820px);display:flex;align-items:flex-end;overflow:hidden;background:var(--ardoise-900)}
.hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero__veil{position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(24,28,32,.55) 0%,rgba(24,28,32,.30) 38%,rgba(24,28,32,.86) 100%);
}
.hero__inner{position:relative;z-index:2;max-width:var(--maxw);margin-inline:auto;width:100%;padding:0 var(--gut) clamp(48px,8vh,96px)}
.hero h1{
  color:var(--craie);font-weight:600;
  font-size:clamp(40px,7vw,86px);letter-spacing:-.015em;
  max-width:16ch;margin:18px 0 0;
}
.hero h1 em{font-style:italic;color:var(--cuivre-clair)}
.hero__sub{color:var(--paper);font-size:clamp(17px,2vw,20px);max-width:54ch;margin:22px 0 0;opacity:.94}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:8px;font-weight:600;font-size:15px;
  font-family:var(--font-body);cursor:pointer;border:1px solid transparent;
  transition:.2s var(--ease);
}
.btn--primary{background:var(--cuivre);color:var(--craie)}
.btn--primary:hover{background:var(--cuivre-clair);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--craie);border-color:rgba(255,255,255,.4)}
.btn--ghost:hover{background:rgba(255,255,255,.1);border-color:var(--craie)}
.btn--dark{background:var(--ardoise-800);color:var(--craie)}
.btn--dark:hover{background:var(--ardoise-700)}

.hero__badges{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px}
.hero__badge{display:inline-flex;align-items:center;gap:9px;color:var(--paper);font-size:14px;font-weight:500}
.hero__badge svg{color:var(--cuivre-clair);flex:none}

/* =========================  SECTIONS  ================================== */
.section{padding:clamp(64px,9vw,120px) 0}
.section--dark{background:var(--ardoise-900);color:var(--paper)}
.section--stone{background:var(--pierre-100)}
.section--paper{background:var(--pierre-50)}
.section__head{max-width:62ch}
.section--dark h2,.section--dark h3{color:var(--craie)}
.section h2{font-size:clamp(30px,4.4vw,52px);margin-top:14px}
.section p.lead{margin-top:18px}
.section--dark p{color:var(--zinc-300)}

/* signature pour titres : filet cuivre */
.rule{width:54px;height:2px;background:var(--cuivre);margin:0 0 4px}

/* ===================  SAVOIR-FAIRE — cartes  ========================== */
.trades{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:54px}
.trade{
  position:relative;overflow:hidden;border-radius:14px;min-height:380px;
  display:flex;flex-direction:column;justify-content:flex-end;
  color:var(--craie);background:var(--ardoise-800);
  isolation:isolate;
}
.trade img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .6s var(--ease)}
.trade::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(24,28,32,.15) 0%,rgba(24,28,32,.55) 55%,rgba(24,28,32,.94) 100%)}
.trade:hover img{transform:scale(1.06)}
.trade__body{padding:24px}
.trade__num{font-family:var(--font-body);font-size:12px;font-weight:600;letter-spacing:.2em;color:var(--cuivre-clair)}
.trade h3{font-size:27px;margin:8px 0 8px}
.trade p{font-size:14px;color:var(--zinc-300);margin:0 0 16px;line-height:1.5}
.trade__link{font-size:13px;font-weight:600;color:var(--craie);display:inline-flex;align-items:center;gap:7px}
.trade__link svg{transition:transform .2s var(--ease)}
.trade:hover .trade__link svg{transform:translateX(4px)}

/* ===================  SPLIT (image / texte)  ========================== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px);align-items:center}
.split--rev .split__media{order:2}
.split__media{border-radius:14px;overflow:hidden;box-shadow:0 30px 60px -30px rgba(24,28,32,.5)}
.split__media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}

.checklist{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:13px}
.checklist li{display:flex;gap:13px;align-items:flex-start;font-size:16px}
.checklist svg{flex:none;color:var(--cuivre);margin-top:3px}
.section--dark .checklist svg{color:var(--cuivre-clair)}

/* ===================  PATRIMOINE bandeau  ============================= */
.feature{display:grid;grid-template-columns:1.1fr 1fr;gap:0;border-radius:16px;overflow:hidden;background:var(--ardoise-800)}
.feature__txt{padding:clamp(32px,5vw,60px);color:var(--paper)}
.feature__txt h2{color:var(--craie)}
.feature__media{position:relative;min-height:420px}
.feature__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* ===================  CHIFFRES  ====================================== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:48px}
.stat{padding:24px 0;border-top:1px solid rgba(255,255,255,.16)}
.section--paper .stat,.section--stone .stat{border-top:1px solid rgba(27,32,36,.16)}
.stat__n{font-family:var(--font-display);font-size:clamp(40px,5vw,62px);font-weight:600;line-height:1;color:var(--cuivre)}
.stat__l{font-size:13.5px;color:var(--zinc-500);margin-top:8px;letter-spacing:.02em}
.section--dark .stat__l{color:var(--zinc-300)}

/* ===================  GALERIE  ======================================= */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:48px}
.gallery figure{margin:0;position:relative;overflow:hidden;border-radius:12px;background:var(--ardoise-800)}
.gallery img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .6s var(--ease)}
.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px;
  font-size:13px;font-weight:600;color:var(--craie);
  background:linear-gradient(180deg,transparent,rgba(24,28,32,.85));
}

/* ===================  ZONES D'INTERVENTION  =========================== */
.zones-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px;margin-top:48px}
.zone-priority{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.zone-card{
  background:var(--craie);border:1px solid rgba(27,32,36,.1);border-radius:12px;
  padding:20px 22px;border-left:3px solid var(--cuivre);
}
.zone-card h3{font-size:22px;margin-bottom:4px}
.zone-card p{font-size:13.5px;color:var(--zinc-500);margin:0}
.commune-list{columns:2;column-gap:36px;list-style:none;padding:0;margin:18px 0 0}
.commune-list li{padding:7px 0;border-bottom:1px solid rgba(27,32,36,.08);break-inside:avoid;font-size:15px;display:flex;align-items:center;gap:9px}
.commune-list li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--cuivre);flex:none}

/* ===================  CONTACT / FORM  ================================= */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(32px,5vw,64px);margin-top:48px}
.info-row{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.info-row svg{flex:none;color:var(--cuivre-clair);margin-top:2px}
.info-row b{display:block;color:var(--craie);font-size:16px;margin-bottom:2px}
.info-row span{color:var(--zinc-300);font-size:15px}
.form{background:var(--craie);border-radius:14px;padding:clamp(24px,4vw,38px);box-shadow:0 30px 60px -30px rgba(24,28,32,.4)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ardoise-700);margin-bottom:7px;letter-spacing:.01em}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid #d6d0c5;border-radius:8px;
  font-family:var(--font-body);font-size:15px;background:var(--pierre-50);color:var(--ink);
  transition:.18s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cuivre);background:#fff;box-shadow:0 0 0 3px rgba(169,107,56,.13)
}
.field textarea{resize:vertical;min-height:130px}
.form-note{font-size:12.5px;color:var(--zinc-500);margin-top:6px}

/* ===================  CTA bandeau  =================================== */
.cta-band{background:var(--ardoise-900);color:var(--craie);text-align:center;padding:clamp(56px,8vw,96px) var(--gut)}
.cta-band h2{font-size:clamp(28px,4vw,46px);max-width:20ch;margin:0 auto}
.cta-band p{color:var(--zinc-300);max-width:50ch;margin:18px auto 32px}
.cta-band .btn--primary{font-size:16px;padding:16px 32px}

/* ===================  FOOTER  ======================================== */
.footer{background:#13161A;color:var(--zinc-400);padding:clamp(48px,6vw,76px) 0 32px;font-size:14px}
.footer__top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer h4{font-family:var(--font-body);font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--zinc-300);margin-bottom:16px}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.footer a:hover{color:var(--cuivre-clair)}
.footer .brand .mark{font-size:21px}
.footer__about{color:var(--zinc-500);line-height:1.6;margin-top:16px;max-width:38ch}
.footer__bottom{margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--zinc-500)}

/* joint-debout : filets verticaux discrets dans le footer */
.footer{position:relative}
.footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:repeating-linear-gradient(90deg,var(--ardoise-600) 0 1px,transparent 1px 26px)}

/* ===================  reveal au scroll  ============================== */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ===================  PAGE HEADER (sous-pages)  ====================== */
.pagehead{position:relative;background:var(--ardoise-900);color:var(--craie);overflow:hidden}
.pagehead__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34}
.pagehead__inner{position:relative;z-index:2;max-width:var(--maxw);margin-inline:auto;padding:clamp(70px,11vw,130px) var(--gut) clamp(48px,7vw,84px)}
.pagehead h1{font-size:clamp(38px,6vw,72px);color:var(--craie);max-width:18ch}
.pagehead p{color:var(--paper);max-width:56ch;margin-top:18px;font-size:clamp(17px,2vw,20px)}
.crumbs{font-size:13px;color:var(--zinc-400);margin-bottom:22px;letter-spacing:.02em}
.crumbs a:hover{color:var(--cuivre-clair)}

/* prose pages métier */
.prose{max-width:70ch}
.prose h2{font-size:clamp(26px,3.4vw,40px);margin-top:8px}
.prose h3{font-size:clamp(20px,2.4vw,27px);margin-top:36px;margin-bottom:8px}
.prose p{margin:16px 0;color:var(--ardoise-700)}
.prose strong{color:var(--ink)}

/* =========================  RESPONSIVE  =============================== */
@media(max-width:1000px){
  .trades{grid-template-columns:repeat(2,1fr)}
  .feature{grid-template-columns:1fr}
  .feature__media{min-height:320px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer__top{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
  .menu,.has-sub,.nav-phone{display:none}
  .burger{display:flex}
  .nav{gap:12px}
  .split{grid-template-columns:1fr}
  .split--rev .split__media{order:0}
  .contact-grid{grid-template-columns:1fr}
  .zones-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  /* menu mobile déroulant */
  .mobile-menu{display:none}
  .mobile-menu.open{display:block;background:var(--ardoise-800);border-top:1px solid rgba(255,255,255,.08)}
  .mobile-menu a{display:block;padding:14px var(--gut);color:var(--paper);border-bottom:1px solid rgba(255,255,255,.06);font-size:15px}
  .mobile-menu a.sub{padding-left:calc(var(--gut) + 18px);font-size:14px;color:var(--zinc-300)}
}
@media(min-width:821px){.mobile-menu{display:none}}
@media(max-width:560px){
  .trades{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:1fr}
  .commune-list{columns:1}
  .footer__top{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* =======================================================================
   ====================  UPGRADE — v2 (animation & sections)  ============
   ======================================================================= */

/* --- Header qui se condense au scroll --- */
.site-header{transition:padding .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease)}
.site-header.scrolled{background:rgba(20,23,27,.97);box-shadow:0 10px 30px -12px rgba(0,0,0,.6)}
.site-header.scrolled .nav{padding-top:9px;padding-bottom:9px}
.site-header.scrolled .brand .sub{opacity:0;height:0;margin:0;overflow:hidden;transition:.3s}

/* --- Hero : zoom lent + indice de défilement --- */
.hero__img{animation:slowzoom 22s ease-in-out infinite alternate;will-change:transform}
@keyframes slowzoom{from{transform:scale(1)}to{transform:scale(1.09)}}
.hero h1{animation:riseIn 1s var(--ease) both}
.hero__sub{animation:riseIn 1s .12s var(--ease) both}
.hero__cta{animation:riseIn 1s .22s var(--ease) both}
.hero__badges{animation:riseIn 1s .32s var(--ease) both}
.hero .eyebrow{animation:riseIn 1s var(--ease) both}
@keyframes riseIn{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
.scrollcue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:3;display:flex;flex-direction:column;align-items:center;gap:7px;color:var(--paper);opacity:.8}
.scrollcue span{font-size:10px;letter-spacing:.24em;text-transform:uppercase}
.scrollcue .mouse{width:22px;height:34px;border:2px solid var(--paper);border-radius:12px;position:relative}
.scrollcue .mouse::after{content:"";position:absolute;left:50%;top:6px;width:3px;height:6px;background:var(--paper);border-radius:2px;transform:translateX(-50%);animation:wheel 1.6s var(--ease) infinite}
@keyframes wheel{0%{opacity:0;transform:translate(-50%,0)}30%{opacity:1}100%{opacity:0;transform:translate(-50%,10px)}}

/* --- Filet cuivre qui se trace au reveal --- */
.reveal .rule{width:0;transition:width .9s .15s var(--ease)}
.reveal.in .rule{width:54px}
/* reveals échelonnés (délai posé par JS via --d) */
.reveal{transition-delay:var(--d,0s)}

/* --- Boutons : reflet au survol --- */
.btn{position:relative;overflow:hidden}
.btn--primary::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,.35),transparent);transform:skewX(-20deg);transition:left .6s var(--ease)}
.btn--primary:hover::after{left:140%}

/* --- Bandeau communes défilant (marquee) --- */
.marquee{background:var(--ardoise-900);border-block:1px solid rgba(255,255,255,.07);overflow:hidden;padding:15px 0}
.marquee__track{display:flex;gap:0;width:max-content;animation:scrollx 46s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee__track span{color:var(--zinc-400);font-size:14px;font-weight:500;letter-spacing:.04em;padding:0 26px;display:inline-flex;align-items:center;gap:26px;white-space:nowrap}
.marquee__track span::after{content:"◆";color:var(--cuivre);font-size:8px}
@keyframes scrollx{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* --- Strip engagements --- */
.engage{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.08);border-radius:14px;overflow:hidden}
.engage__item{background:var(--ardoise-800);padding:26px 24px;display:flex;gap:14px;align-items:flex-start}
.engage__item svg{color:var(--cuivre-clair);flex:none;margin-top:2px}
.engage__item b{display:block;color:var(--craie);font-size:16px;font-family:var(--font-display);font-weight:600}
.engage__item span{color:var(--zinc-300);font-size:13.5px;line-height:1.45}

/* --- Process / déroulement de chantier --- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:54px;counter-reset:step}
.step{position:relative;padding-top:28px}
.step::before{counter-increment:step;content:"0" counter(step);font-family:var(--font-display);font-size:54px;font-weight:600;color:var(--cuivre);opacity:.9;line-height:.7;display:block}
.step::after{content:"";position:absolute;top:14px;left:64px;right:-22px;height:2px;background:repeating-linear-gradient(90deg,var(--zinc-500) 0 6px,transparent 6px 12px);opacity:.4}
.step:last-child::after{display:none}
.step h3{font-size:21px;margin:16px 0 8px;color:var(--craie)}
.step p{font-size:14.5px;color:var(--zinc-300);margin:0;line-height:1.55}

/* --- Gallery : curseur loupe + lightbox --- */
.gallery figure{cursor:zoom-in}
.gallery figure::before{content:"";position:absolute;inset:0;background:rgba(24,28,32,0);transition:background .3s var(--ease);z-index:1}
.gallery figure:hover::before{background:rgba(24,28,32,.12)}
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(15,17,20,.94);display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:.28s var(--ease);backdrop-filter:blur(4px)}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:90vw;max-height:82vh;border-radius:8px;box-shadow:0 40px 90px -30px rgba(0,0,0,.8);transform:scale(.96);transition:transform .28s var(--ease)}
.lightbox.open img{transform:scale(1)}
.lightbox__cap{position:absolute;bottom:28px;left:0;right:0;text-align:center;color:var(--paper);font-size:14px;letter-spacing:.02em}
.lb-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);
  color:#fff;width:50px;height:50px;border-radius:50%;cursor:pointer;font-size:22px;display:flex;align-items:center;justify-content:center;transition:.2s}
.lb-btn:hover{background:var(--cuivre);border-color:var(--cuivre)}
.lb-prev{left:24px}.lb-next{right:24px}
.lb-close{top:24px;right:24px;transform:none;width:46px;height:46px}

/* --- Témoignages --- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:50px}
.quote{background:var(--craie);border:1px solid rgba(27,32,36,.08);border-radius:14px;padding:30px 28px;position:relative;box-shadow:0 24px 50px -36px rgba(24,28,32,.4)}
.quote__mark{font-family:var(--font-display);font-size:64px;line-height:.5;color:var(--cuivre);opacity:.28;height:30px;display:block}
.quote p{font-size:16px;color:var(--ardoise-700);font-style:italic;margin:6px 0 20px}
.quote__by{display:flex;align-items:center;gap:12px}
.quote__av{width:40px;height:40px;border-radius:50%;background:var(--ardoise-700);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--font-display);font-size:18px;flex:none}
.quote__by b{font-size:14.5px;color:var(--ink)}
.quote__by span{font-size:12.5px;color:var(--zinc-500)}
.quote__stars{color:var(--cuivre);font-size:14px;letter-spacing:2px;margin-bottom:10px}

/* --- FAQ accordéon --- */
.faq{max-width:820px;margin:48px auto 0}
.faq details{border-bottom:1px solid rgba(27,32,36,.13);padding:6px 0}
.section--dark .faq details{border-color:rgba(255,255,255,.13)}
.faq summary{list-style:none;cursor:pointer;padding:20px 44px 20px 4px;position:relative;font-family:var(--font-display);font-size:21px;font-weight:600;color:var(--ink)}
.section--dark .faq summary{color:var(--craie)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:26px;color:var(--cuivre);transition:transform .3s var(--ease);font-family:var(--font-body);font-weight:300}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq .faq__a{padding:0 44px 22px 4px;color:var(--ardoise-700);font-size:16px;line-height:1.6;animation:fadeDown .35s var(--ease)}
.section--dark .faq .faq__a{color:var(--zinc-300)}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* --- Barre d'appel mobile (sticky) --- */
.callbar{position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;gap:1px;background:rgba(255,255,255,.12)}
.callbar a{flex:1;padding:15px;text-align:center;font-weight:600;font-size:15px;display:flex;align-items:center;justify-content:center;gap:9px}
.callbar .c-call{background:var(--ardoise-800);color:#fff}
.callbar .c-quote{background:var(--cuivre);color:#fff}
@media(max-width:820px){
  .callbar{display:flex}
  body{padding-bottom:54px}
  .steps{grid-template-columns:1fr 1fr}
  .step::after{display:none}
  .engage{grid-template-columns:1fr 1fr}
  .quotes{grid-template-columns:1fr}
  .lb-prev{left:10px}.lb-next{right:10px}
}
@media(max-width:560px){
  .steps,.engage{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  .hero__img{animation:none}
  .marquee__track{animation:none}
  .scrollcue .mouse::after{animation:none}
  .hero h1,.hero__sub,.hero__cta,.hero__badges,.hero .eyebrow{animation:none}
}

/* fix : empiler nom / ville dans les témoignages */
.quote__by > div{display:flex;flex-direction:column;line-height:1.25}

/* =======================================================================
   ====================  UPGRADE — v3 (identité & finitions)  ============
   ======================================================================= */

/* Barre de progression de lecture */
.scrollprog{position:fixed;top:0;left:0;height:3px;width:100%;z-index:200;
  background:linear-gradient(90deg,var(--cuivre),var(--cuivre-clair));
  transform:scaleX(0);transform-origin:0 50%;pointer-events:none;transition:transform .08s linear}

/* Barre utilitaire */
.topbar{background:#13161A;border-bottom:1px solid rgba(255,255,255,.06);font-size:12.5px;
  overflow:hidden;max-height:46px;transition:max-height .3s var(--ease),opacity .3s var(--ease),padding .3s var(--ease)}
.topbar__in{max-width:var(--maxw);margin-inline:auto;padding:9px var(--gut);display:flex;justify-content:space-between;align-items:center;gap:16px}
.topbar__l{color:var(--zinc-400);display:inline-flex;align-items:center;gap:9px}
.topbar__l svg{color:var(--cuivre-clair);width:15px;height:15px}
.topbar__r{display:inline-flex;align-items:center;gap:14px}
.topbar__r a{color:var(--paper);font-weight:600;display:inline-flex;align-items:center;gap:7px}
.topbar__r a:hover{color:var(--cuivre-clair)}
.topbar__r a svg{width:14px;height:14px;color:var(--cuivre-clair)}
.topbar__sep{width:1px;height:15px;background:rgba(255,255,255,.16)}
.topbar__tag{color:var(--zinc-400);display:inline-flex;align-items:center;gap:7px}
.topbar__tag svg{width:14px;height:14px;color:var(--cuivre-clair)}
.site-header.scrolled .topbar{max-height:0;opacity:0;border:none}

/* Logo avec emblème */
.brand{flex-direction:row;align-items:center;gap:11px}
.brand__txt{display:flex;flex-direction:column;line-height:1}
.brand__emblem{flex:none;color:var(--paper);display:flex}
.emblem{width:34px;height:34px;display:block;transition:transform .4s var(--ease)}
.brand:hover .emblem{transform:rotate(-4deg) scale(1.05)}

/* Hero : overlay renforcé + parallaxe du contenu + badges en pastilles */
.hero__veil{background:
  linear-gradient(180deg,rgba(20,23,27,.62) 0%,rgba(20,23,27,.20) 34%,rgba(20,23,27,.55) 70%,rgba(20,23,27,.92) 100%),
  linear-gradient(90deg,rgba(20,23,27,.55) 0%,rgba(20,23,27,0) 55%)}
.hero__inner{will-change:transform,opacity}
.hero__badge{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
  padding:9px 15px;border-radius:999px;backdrop-filter:blur(4px)}

/* Effets de survol (relief) */
.engage__item{transition:transform .25s var(--ease),background .25s var(--ease)}
.engage__item:hover{transform:translateY(-4px);background:var(--ardoise-700)}
.quote{transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.quote:hover{transform:translateY(-6px);box-shadow:0 36px 64px -28px rgba(24,28,32,.55)}
.zone-card{transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.zone-card:hover{transform:translateY(-4px);box-shadow:0 24px 44px -26px rgba(24,28,32,.4)}
.step{transition:transform .25s var(--ease)}
.step:hover{transform:translateY(-4px)}
.step:hover::before{color:var(--cuivre-clair)}

/* Masquer la barre utilitaire sur mobile */
@media(max-width:820px){
  .topbar{display:none}
}
@media(prefers-reduced-motion:reduce){
  .scrollprog{display:none}
}

/* =======================================================================
   ====================  UPGRADE — v4 (diaporama & mobile)  ==============
   ======================================================================= */

/* Diaporama du hero : fondu enchaîné */
.hero__slides{position:absolute;inset:0}
.hero__slides .hero__img{opacity:0;transition:opacity 1.4s var(--ease);animation:none}
.hero__slides .hero__img.is-active{opacity:1;animation:slowzoom 12s ease-in-out both}
.hero__dots{position:absolute;right:28px;bottom:26px;z-index:4;display:flex;gap:8px}
.hero__dots button{width:26px;height:4px;border-radius:2px;border:none;cursor:pointer;
  background:rgba(255,255,255,.35);transition:.25s var(--ease);padding:0}
.hero__dots button.on{background:var(--cuivre-clair);width:38px}
.hero__label{position:absolute;right:28px;bottom:42px;z-index:4;color:var(--paper);
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;opacity:.85;text-align:right}

/* Mobile : hero + confort tactile */
@media(max-width:820px){
  .hero{min-height:88svh}
  .hero h1{font-size:clamp(34px,10vw,52px)}
  .hero__cta .btn{width:100%;justify-content:center}
  .hero__dots{left:50%;right:auto;transform:translateX(-50%);bottom:70px}
  .hero__label{display:none}
  .scrollcue{display:none}
  .btn{padding:15px 24px}
  .menu a,.submenu a{padding:12px 14px}
  .section{padding:56px 0}
  .split__media img{aspect-ratio:16/11}
  .feature__media{min-height:260px}
  .marquee{padding:12px 0}
  .faq summary{font-size:18.5px}
  .pagehead__inner{padding-top:56px}
}
@media(max-width:560px){
  .hero__badges{gap:8px}
  .hero__badge{font-size:12.5px;padding:8px 12px}
  .stats{gap:14px}
  .stat{padding:16px 0}
}
@media(prefers-reduced-motion:reduce){
  .hero__slides .hero__img.is-active{animation:none}
}

/* =======================================================================
   ==============  UPGRADE — v5 (immersif & épuré)  ======================
   ======================================================================= */

/* Hero plein écran, cinéma */
.hero{min-height:clamp(620px,96svh,920px)}

/* Étiquette de slide (matière en cours) */
.hero__slideinfo{position:absolute;right:28px;bottom:58px;z-index:4;text-align:right;color:var(--paper)}
.hero__slideinfo b{display:block;font-family:var(--font-display);font-size:21px;font-weight:600;color:var(--craie);letter-spacing:.01em}
.hero__slideinfo span{font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--cuivre-clair)}

/* Points → barres de progression façon "stories" */
.hero__dots{right:28px;bottom:26px;gap:7px}
.hero__dots button{width:34px;height:3px;border-radius:2px;background:rgba(255,255,255,.26);position:relative;overflow:hidden}
.hero__dots button.on{background:rgba(255,255,255,.26);width:52px}
.hero__dots button.on::after{content:"";position:absolute;inset:0;background:var(--cuivre-clair);
  transform-origin:left;animation:dotfill 5.2s linear forwards}
@keyframes dotfill{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* Bandes parallaxe pleine largeur : une image, une phrase */
.band{position:relative;min-height:62vh;display:flex;align-items:center;justify-content:center;overflow:hidden;isolation:isolate}
.band__img{position:absolute;left:0;right:0;top:-14%;height:128%;width:100%;object-fit:cover;z-index:-2;will-change:transform}
.band::after{content:"";position:absolute;inset:0;background:rgba(20,23,27,.55);z-index:-1}
.band__txt{text-align:center;padding:60px var(--gut);max-width:900px}
.band__txt .eyebrow{justify-content:center}
.band__txt h2{color:var(--craie);font-size:clamp(34px,5.6vw,68px);font-style:italic;font-weight:600;line-height:1.08;text-shadow:0 4px 30px rgba(0,0,0,.35)}
.band__txt p{color:var(--paper);margin:16px auto 0;max-width:52ch;font-size:clamp(15px,1.8vw,18px)}

/* Grand mot défilant (typographie contour) */
.words{overflow:hidden;background:var(--ardoise-900);padding:26px 0;border-block:1px solid rgba(255,255,255,.06)}
.words__track{display:flex;width:max-content;animation:scrollx 38s linear infinite;
  font-family:var(--font-display);font-weight:600;font-style:italic;
  font-size:clamp(54px,8.5vw,120px);line-height:1;white-space:nowrap;
  color:transparent;-webkit-text-stroke:1px var(--zinc-500)}
.words__track em{font-style:italic;color:var(--cuivre);-webkit-text-stroke:0}
.words__track span{padding:0 30px}
.words:hover .words__track{animation-play-state:paused}

/* Galerie en bande horizontale (scroll-snap) */
.gallery--strip{display:flex;grid-template-columns:none;overflow-x:auto;scroll-snap-type:x mandatory;
  gap:16px;padding:8px 4px 18px;scrollbar-width:thin;scrollbar-color:var(--cuivre) transparent;
  -webkit-overflow-scrolling:touch}
.gallery--strip figure{flex:0 0 min(600px,80vw);scroll-snap-align:center}
.gallery--strip img{aspect-ratio:16/10}
.gallery--strip::-webkit-scrollbar{height:5px}
.gallery--strip::-webkit-scrollbar-thumb{background:var(--cuivre);border-radius:3px}
.gallery--strip::-webkit-scrollbar-track{background:rgba(255,255,255,.08);border-radius:3px}
.strip-hint{display:flex;align-items:center;gap:10px;color:var(--zinc-400);font-size:13px;margin-top:14px;letter-spacing:.04em}
.strip-hint svg{animation:nudge 1.8s var(--ease) infinite}
@keyframes nudge{0%,100%{transform:translateX(0)}50%{transform:translateX(6px)}}

@media(max-width:820px){
  .hero__slideinfo{right:16px;bottom:96px}
  .hero__dots{left:auto;right:16px;transform:none;bottom:74px}
  .band{min-height:48vh}
  .band__img{position:absolute}
  .gallery--strip figure{flex:0 0 86vw}
}
@media(prefers-reduced-motion:reduce){
  .words__track{animation:none}
  .hero__dots button.on::after{animation:none;transform:scaleX(1)}
  .strip-hint svg{animation:none}
}