/* =========================================================
   ATELIER 4 — feuille de style unique du site
   Palette et typographie : voir 01-MARQUE/charte-graphique.html
   ========================================================= */

/* ── RESET & TOKENS ─────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
img{max-width:100%;display:block}
:root{
  --encre:#1C1B19; --chaux:#F5F1EA; --argile:#C0714F;
  --greige:#D6CCBE; --olive:#5A6650; --laiton:#A8823F;
  --ff-d:'Fraunces',Georgia,serif;
  --ff-u:'Archivo',system-ui,sans-serif;
  --ff-b:'Inter',system-ui,sans-serif;
  --max:1280px; --gap:clamp(1.5rem,4vw,3rem);
  --bg:var(--chaux); --fg:var(--encre);
  --bg2:#EEEAE2; --muted:#7A7268; --border:#DDD8CE;
}
@media(prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#1A1917; --fg:#EDE9E1; --bg2:#242220;
    --muted:#9A9388; --border:#2E2C28;
  }
}
:root[data-theme="dark"]{
  --bg:#1A1917; --fg:#EDE9E1; --bg2:#242220;
  --muted:#9A9388; --border:#2E2C28;
}
html{scroll-behavior:smooth;font-size:16px}
body{background:var(--bg);color:var(--fg);font-family:var(--ff-b);
  line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
::selection{background:var(--argile);color:#fff}
:focus-visible{outline:2px solid var(--argile);outline-offset:2px}

/* ── TYPOGRAPHY SCALE ───────────────────────────────────────────── */
.eyebrow{font-family:var(--ff-u);font-size:.68rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--argile)}
.display{font-family:var(--ff-d);font-style:italic;font-weight:300;
  font-size:clamp(2.2rem,5.5vw,4rem);line-height:1.1;text-wrap:balance}
.h2{font-family:var(--ff-d);font-style:italic;font-weight:300;
  font-size:clamp(1.7rem,3.8vw,2.8rem);line-height:1.2;text-wrap:balance}
.h3{font-family:var(--ff-u);font-weight:500;font-size:clamp(1rem,2vw,1.2rem);
  letter-spacing:.01em}
.body-lg{font-family:var(--ff-b);font-size:clamp(.9rem,1.8vw,1.05rem);
  line-height:1.75;color:var(--muted)}
.label{font-family:var(--ff-u);font-size:.7rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted)}

/* ── LAYOUT ─────────────────────────────────────────────────────── */
.container{max-width:var(--max);margin-inline:auto;padding-inline:var(--gap)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
@media(max-width:900px){.grid-2,.grid-3{grid-template-columns:1fr}}
@media(max-width:680px){.grid-2{grid-template-columns:1fr}}
section{padding-block:clamp(4rem,8vw,7rem)}
.section-divider{width:2.5rem;height:2px;background:var(--argile);
  margin-bottom:1.5rem;opacity:.8}

/* ── NAV ────────────────────────────────────────────────────────── */
nav{position:fixed;inset:0 0 auto;z-index:100;
  padding:.9rem var(--gap);display:flex;align-items:center;justify-content:space-between;
  background:var(--encre);box-shadow:0 1px 0 rgba(255,255,255,.06)}
body.has-hero nav{background:transparent;box-shadow:none;transition:background .3s,box-shadow .3s}
body.has-hero nav.scrolled{background:var(--encre);box-shadow:0 1px 0 rgba(255,255,255,.06)}
.nav-logo{display:flex;align-items:center;gap:.5rem;text-decoration:none;
  font-family:var(--ff-u);font-weight:600;font-size:1.05rem;letter-spacing:.08em;
  color:#fff;text-transform:uppercase}
.nav-logo .mark{width:1.6rem;height:1.6rem;background:var(--argile);
  display:grid;place-items:center;font-size:1.05rem;font-weight:400;color:#fff;
  font-family:var(--ff-d);font-style:italic;flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:2rem;list-style:none}
.nav-links a{font-family:var(--ff-u);font-size:.78rem;letter-spacing:.06em;
  text-transform:uppercase;color:rgba(255,255,255,.7);text-decoration:none;
  transition:color .2s}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:#fff}
.nav-cta{font-family:var(--ff-u);font-size:.72rem;letter-spacing:.1em;
  text-transform:uppercase;background:var(--argile);color:#fff;
  padding:.55rem 1.3rem;text-decoration:none;transition:opacity .2s}
.nav-cta:hover{opacity:.85}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;
  color:#fff;flex-direction:column;gap:5px;padding:.3rem}
.nav-toggle span{width:22px;height:1.5px;background:#fff;display:block;
  transition:transform .25s,opacity .25s}
@media(max-width:860px){
  .nav-links,.nav-cta-wrap{display:none}
  .nav-toggle{display:flex}
}
.mobile-menu{display:none;position:fixed;inset:0;background:var(--encre);
  z-index:99;flex-direction:column;align-items:center;justify-content:center;gap:2.5rem}
.mobile-menu.open{display:flex}
.mobile-menu a{font-family:var(--ff-u);font-size:1.1rem;letter-spacing:.1em;
  text-transform:uppercase;color:rgba(255,255,255,.8);text-decoration:none}
.mobile-menu a:hover{color:var(--argile)}

/* ── PAGE HEADER (interior pages, no video hero) ───────────────────── */
.page-header{background:var(--encre);padding:clamp(7rem,14vw,9rem) 0 clamp(3rem,6vw,4.5rem)}
.page-header .eyebrow{color:var(--argile)}
.page-header h1{font-family:var(--ff-d);font-style:italic;font-weight:300;
  font-size:clamp(2rem,5vw,3.4rem);color:#fff;line-height:1.15;margin-top:1rem;
  max-width:20ch;text-wrap:balance}
.page-header p{font-family:var(--ff-b);font-size:.95rem;color:rgba(255,255,255,.62);
  margin-top:1.2rem;max-width:56ch;line-height:1.7}
.breadcrumb{font-family:var(--ff-u);font-size:.65rem;letter-spacing:.1em;
  text-transform:uppercase;color:rgba(255,255,255,.4);margin-top:1.4rem}
.breadcrumb a{color:rgba(255,255,255,.55);text-decoration:none}
.breadcrumb a:hover{color:var(--argile)}

/* ── HERO (accueil uniquement) ──────────────────────────────────── */
#accueil{position:relative;height:88dvh;min-height:580px;overflow:hidden;
  display:flex;align-items:flex-end;padding-bottom:clamp(3rem,6vw,5rem);
  background:var(--encre)}
.hero-film{position:absolute;inset:0;overflow:hidden;background:var(--encre)}
.hero-film video,.hero-film .hero-still{width:100%;height:100%;object-fit:cover;
  display:block;filter:brightness(.84) saturate(.96)}
.hero-still{display:none}
.hero-film::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse at 62% 38%,transparent 28%,rgba(28,27,25,.4) 100%)}
.hero-slate{position:absolute;top:clamp(4.6rem,9vh,6.2rem);left:var(--gap);z-index:3;
  display:flex;align-items:center;gap:.6rem}
.hero-beat{font-family:var(--ff-u);font-size:.57rem;letter-spacing:.19em;
  text-transform:uppercase;color:rgba(255,255,255,.32);
  transition:color .45s ease;white-space:nowrap}
.hero-beat.on{color:var(--argile)}
.hero-slate .sep{width:.85rem;height:1px;background:rgba(255,255,255,.22);flex-shrink:0}
.hero-sound{position:absolute;top:clamp(4.6rem,9vh,6.2rem);right:var(--gap);z-index:3;
  display:flex;align-items:center;gap:.5rem;background:rgba(28,27,25,.45);
  border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.75);
  font-family:var(--ff-u);font-size:.57rem;letter-spacing:.16em;text-transform:uppercase;
  padding:.45rem .8rem;cursor:pointer;transition:border-color .2s,color .2s}
.hero-sound:hover{border-color:var(--argile);color:#fff}
.hero-sound svg{width:.85rem;height:.85rem;stroke:currentColor;fill:none;
  stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.hero-sound[aria-pressed="false"] .waves{display:none}
.hero-sound[aria-pressed="true"] .x-mark{display:none}
[hidden]{display:none!important}
.hero-overlay{position:absolute;inset:0;
  background:linear-gradient(to top,rgba(28,27,25,.92) 0%,rgba(28,27,25,.2) 45%,transparent 65%);
  z-index:1}
.hero-content{position:relative;z-index:2;width:100%;max-width:var(--max);
  margin-inline:auto;padding-inline:var(--gap)}
.hero-eyebrow{font-family:var(--ff-u);font-size:.65rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--argile);margin-bottom:1rem}
.hero-title{font-family:var(--ff-d);font-style:italic;font-weight:300;
  font-size:clamp(2rem,5vw,3.6rem);color:#fff;line-height:1.1;
  max-width:16ch;margin-bottom:1.5rem;text-wrap:balance}
.hero-actions{display:flex;align-items:center;gap:1.2rem;flex-wrap:wrap}
.btn-primary{font-family:var(--ff-u);font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;background:var(--argile);color:#fff;border:none;
  padding:.75rem 2rem;text-decoration:none;transition:opacity .2s;display:inline-block;cursor:pointer}
.btn-primary:hover{opacity:.85}
.btn-ghost{font-family:var(--ff-u);font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;border:1px solid rgba(255,255,255,.4);color:rgba(255,255,255,.8);
  padding:.7rem 1.8rem;text-decoration:none;transition:border-color .2s,color .2s;display:inline-block;background:none}
.btn-ghost:hover{border-color:#fff;color:#fff}
.btn-ghost.on-light{border-color:var(--border);color:var(--muted)}
.btn-ghost.on-light:hover{border-color:var(--argile);color:var(--argile)}
@media(max-width:680px){
  .hero-slate{gap:.4rem}
  .hero-beat{font-size:.5rem;letter-spacing:.14em}
  .hero-sound span{display:none}
  .hero-sound{padding:.45rem .55rem}
}
@media(prefers-reduced-motion:reduce){
  .hero-film video{display:none}
  .hero-film .hero-still{display:block}
}

/* ── METRICS BAR ────────────────────────────────────────────────── */
#chiffres{background:var(--encre);padding-block:0}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid #2E2C28}
.metric{padding:clamp(1.5rem,3vw,2.5rem) var(--gap);
  border-right:1px solid #2E2C28;text-align:center}
.metric:last-child{border-right:none}
.metric-num{font-family:var(--ff-u);font-weight:600;
  font-size:clamp(1.8rem,4vw,2.8rem);color:var(--argile);
  font-variant-numeric:tabular-nums;line-height:1}
.metric-label{font-family:var(--ff-b);font-size:.72rem;color:rgba(255,255,255,.5);
  margin-top:.5rem;line-height:1.4}
@media(max-width:680px){.metrics{grid-template-columns:1fr 1fr}}

/* ── SECTEURS ───────────────────────────────────────────────────── */
#secteurs{background:var(--bg)}
.secteurs-header{margin-bottom:clamp(2.5rem,5vw,4rem)}
.secteur-card{position:relative;overflow:hidden;cursor:default}
.secteur-photo{aspect-ratio:4/3;overflow:hidden}
.secteur-photo img{width:100%;height:100%;object-fit:cover;
  transition:transform .6s ease;will-change:transform}
.secteur-card:hover .secteur-photo img{transform:scale(1.04)}
.secteur-body{padding:1.5rem 0 0}
.secteur-tag{font-family:var(--ff-u);font-size:.6rem;letter-spacing:.15em;
  text-transform:uppercase;color:var(--argile);margin-bottom:.6rem}
.secteur-title{font-family:var(--ff-u);font-weight:500;font-size:1.05rem;
  color:var(--fg);margin-bottom:.6rem}
.secteur-desc{font-family:var(--ff-b);font-size:.82rem;color:var(--muted);
  line-height:1.65}
.secteur-examples{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.8rem}
.chip{font-family:var(--ff-u);font-size:.58rem;letter-spacing:.08em;
  text-transform:uppercase;border:1px solid var(--border);
  color:var(--muted);padding:.2rem .55rem;display:inline-block}

/* ── PROCESSUS / PHASES (accueil aperçu + page prestations) ───────── */
#processus{background:var(--bg2)}
.processus-header{margin-bottom:clamp(2.5rem,5vw,4rem)}
.processus-img{margin-bottom:clamp(2rem,4vw,3rem);position:relative;overflow:hidden;
  height:clamp(200px,28vw,380px)}
.processus-img img{width:100%;height:100%;object-fit:cover;object-position:center 40%}
.processus-img .caption{position:absolute;bottom:1rem;right:1rem;
  font-family:var(--ff-u);font-size:.58rem;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(255,255,255,.6);background:rgba(28,27,25,.6);padding:.3rem .65rem}
.phases-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;
  background:var(--border)}
@media(max-width:900px){.phases-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:500px){.phases-grid{grid-template-columns:repeat(2,1fr)}}
.phase{background:var(--bg2);padding:1.4rem 1rem;position:relative}
.phase-num{font-family:var(--ff-u);font-weight:600;font-size:.68rem;
  color:var(--argile);margin-bottom:.6rem;letter-spacing:.05em}
.phase-name{font-family:var(--ff-u);font-weight:500;font-size:.8rem;
  color:var(--fg);line-height:1.3;margin-bottom:.5rem}
.phase-detail{font-family:var(--ff-b);font-size:.7rem;color:var(--muted);
  line-height:1.55}
.phase:last-child .phase-name{color:var(--argile)}

/* Détail des phases — page Prestations (liste verticale) */
.phase-list-detail{display:flex;flex-direction:column;position:relative;margin-top:clamp(2rem,4vw,3rem)}
.phase-list-detail::before{content:'';position:absolute;left:calc(.9rem - .5px);
  top:1.6rem;bottom:1.6rem;width:1px;background:var(--border)}
.phase-d{display:grid;grid-template-columns:1.8rem 1fr;gap:0 clamp(1.2rem,3vw,2.5rem);
  padding:clamp(1.5rem,3vw,2rem) 0;border-bottom:1px solid var(--border);position:relative}
.phase-d:last-child{border-bottom:none}
.phase-d-marker{position:relative;z-index:1}
.phase-d-sq{width:1.8rem;height:1.8rem;background:var(--bg2);border:1.5px solid var(--fg);
  display:grid;place-items:center;font-family:var(--ff-u);font-size:.75rem;font-weight:600;color:var(--fg)}
.phase-d.final .phase-d-sq{background:var(--argile);border-color:var(--argile);color:#fff}
.phase-d-content{display:grid;grid-template-columns:14rem 1fr;gap:.6rem clamp(1.5rem,3vw,2.5rem)}
@media(max-width:800px){.phase-d-content{grid-template-columns:1fr}}
.phase-d-tag{font-family:var(--ff-u);font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-bottom:.3rem}
.phase-d-title{font-family:var(--ff-u);font-weight:500;font-size:1.02rem;color:var(--fg);line-height:1.3}
.phase-d.final .phase-d-title{color:var(--argile)}
.phase-d-desc{font-family:var(--ff-b);font-size:.88rem;color:var(--muted);line-height:1.65;margin-bottom:.7rem;max-width:60ch}
.phase-d-desc strong{color:var(--fg);font-weight:500}
.phase-d-items{list-style:none;display:flex;flex-direction:column;gap:.3rem}
.phase-d-items li{font-size:.83rem;color:var(--fg);padding-left:1.1rem;position:relative;line-height:1.5}
.phase-d-items li::before{content:'';position:absolute;left:0;top:.6em;width:5px;height:5px;
  border:1px solid var(--argile);transform:rotate(45deg)}

/* ── RÉALISATIONS ───────────────────────────────────────────────── */
#realisations,.realisations-section{background:var(--bg)}
.realisations-header{margin-bottom:clamp(2.5rem,5vw,4rem)}
.ba{position:relative;overflow:hidden;--pos:52%;background:var(--encre)}
.ba img{display:block;width:100%;aspect-ratio:16/9;max-height:68vh;object-fit:cover}
.ba-after{position:absolute;inset:0;height:100%;clip-path:inset(0 0 0 var(--pos))}
.ba-range{position:absolute;inset:0;width:100%;height:100%;margin:0;
  opacity:0;cursor:ew-resize;z-index:4}
.ba-line{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;z-index:3;
  background:var(--argile);pointer-events:none}
.ba-line::before{content:'[4]';position:absolute;top:50%;left:50%;
  transform:translate(-50%,-50%);background:var(--argile);color:#fff;
  font-family:var(--ff-u);font-size:.68rem;font-weight:700;
  padding:.35rem .5rem;white-space:nowrap}
.ba-range:focus-visible ~ .ba-line{box-shadow:0 0 0 3px rgba(192,113,79,.5)}
.ba-tag{position:absolute;top:1rem;z-index:2;font-family:var(--ff-u);
  font-size:.57rem;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(255,255,255,.85);background:rgba(28,27,25,.55);padding:.3rem .6rem}
.ba-tag-l{left:1rem}
.ba-tag-r{right:1rem}
.ba-note{margin:.9rem 0 clamp(2.5rem,5vw,4rem);display:flex;gap:.5rem 1.4rem;
  align-items:baseline;flex-wrap:wrap}
.ba-note .ba-h{font-family:var(--ff-u);font-weight:500;font-size:.7rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--fg)}
.ba-note .ba-d{font-family:var(--ff-b);font-size:.76rem;color:var(--muted)}
.ba-note .ba-hint{font-family:var(--ff-u);font-size:.58rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--argile);margin-left:auto}

.portfolio-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:3px}
.portfolio-item{position:relative;overflow:hidden;grid-column:span 2}
.portfolio-item.wide{grid-column:span 3}
.portfolio-item img{width:100%;height:100%;object-fit:cover;display:block;
  aspect-ratio:3/2;transition:transform .5s ease}
.portfolio-item:hover img{transform:scale(1.04)}
.portfolio-caption{position:absolute;bottom:0;left:0;right:0;
  padding:2.2rem 1.1rem .9rem;
  background:linear-gradient(to top,rgba(28,27,25,.9) 0%,rgba(28,27,25,.5) 55%,transparent 100%);
  transform:translateY(28%);opacity:0;transition:transform .35s,opacity .35s}
.portfolio-item:hover .portfolio-caption{transform:translateY(0);opacity:1}
.portfolio-caption .proj-name{font-family:var(--ff-u);font-weight:500;
  font-size:.8rem;color:#fff;margin-bottom:.25rem}
.portfolio-caption .proj-meta{font-family:var(--ff-b);font-size:.67rem;
  color:rgba(255,255,255,.62);line-height:1.5}
.portfolio-tag{position:absolute;top:.8rem;left:.8rem;
  font-family:var(--ff-u);font-size:.55rem;letter-spacing:.13em;text-transform:uppercase;
  background:var(--argile);color:#fff;padding:.25rem .55rem}
@media(max-width:900px){
  .portfolio-grid{grid-template-columns:1fr 1fr}
  .portfolio-item,.portfolio-item.wide{grid-column:span 1}
}
@media(max-width:600px){
  .portfolio-grid{grid-template-columns:1fr}
  .portfolio-caption{transform:translateY(0);opacity:1}
  .ba-line::before{font-size:.6rem;padding:.28rem .42rem}
  .ba-note .ba-hint{margin-left:0}
}

/* Fiches projet (page réalisations) — reportage en 3 temps */
.project-block{padding-top:clamp(3rem,6vw,4.5rem);border-top:1px solid var(--border)}
.project-block:first-of-type{border-top:none;padding-top:0}
.project-block-head{display:flex;justify-content:space-between;align-items:flex-end;
  flex-wrap:wrap;gap:1rem;margin-bottom:1.5rem}
.project-block-title{font-family:var(--ff-u);font-weight:500;font-size:1.2rem;color:var(--fg)}
.project-block-meta{font-family:var(--ff-b);font-size:.8rem;color:var(--muted);margin-top:.35rem}
.project-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem}
@media(max-width:700px){.project-strip{grid-template-columns:1fr}}
.project-strip figure{position:relative;overflow:hidden}
.project-strip img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.project-strip figcaption{position:absolute;bottom:0;left:0;right:0;
  font-family:var(--ff-u);font-size:.56rem;letter-spacing:.12em;text-transform:uppercase;
  color:#fff;background:rgba(28,27,25,.6);padding:.4rem .6rem}
.demo-flag{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--ff-u);
  font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
  border:1px solid var(--border);padding:.25rem .6rem;margin-top:.6rem}

/* ── HISTOIRE ───────────────────────────────────────────────────── */
#histoire,.histoire-section{background:var(--encre)}
.histoire-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;
  min-height:clamp(400px,55vw,640px)}
.histoire-text{padding:clamp(3rem,6vw,5rem) clamp(2rem,5vw,5rem);
  display:flex;flex-direction:column;justify-content:center}
.histoire-eyebrow{font-family:var(--ff-u);font-size:.65rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--argile);margin-bottom:1.5rem}
.histoire-title{font-family:var(--ff-d);font-style:italic;font-weight:300;
  font-size:clamp(1.6rem,3.5vw,2.5rem);color:#fff;line-height:1.2;margin-bottom:1.5rem;
  text-wrap:balance}
.histoire-body{font-family:var(--ff-b);font-size:.88rem;color:rgba(255,255,255,.6);
  line-height:1.8;margin-bottom:1rem}
.histoire-body + .histoire-body{margin-top:.8rem}
.histoire-divider{width:3rem;height:1px;background:var(--argile);margin:1.5rem 0;opacity:.6}
.histoire-values{display:flex;flex-direction:column;gap:.8rem;margin-top:1.5rem}
.histoire-value{display:flex;align-items:flex-start;gap:.8rem}
.histoire-value-icon{width:1.8rem;height:1.8rem;border:1px solid rgba(192,113,79,.4);
  display:grid;place-items:center;flex-shrink:0;margin-top:.1rem}
.histoire-value-icon svg{width:.9rem;height:.9rem;stroke:var(--argile);fill:none;stroke-width:1.5}
.histoire-value-text{font-family:var(--ff-b);font-size:.82rem;color:rgba(255,255,255,.65);
  line-height:1.6}
.histoire-value-text strong{color:#fff;font-weight:500;display:block;
  font-family:var(--ff-u);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
  margin-bottom:.15rem}
.histoire-photo{position:relative;overflow:hidden}
.histoire-photo img{width:100%;height:100%;object-fit:cover;object-position:center}
@media(max-width:860px){
  .histoire-grid{grid-template-columns:1fr}
  .histoire-photo{height:clamp(280px,50vw,440px)}
}

/* Valeurs — grille (page à-propos) */
.valeurs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-top:clamp(2rem,4vw,3rem)}
@media(max-width:800px){.valeurs-grid{grid-template-columns:1fr}}
.valeur-card{border-top:2px solid var(--argile);padding-top:1.2rem}
.valeur-card h3{margin-bottom:.6rem}
.valeur-card p{font-family:var(--ff-b);font-size:.85rem;color:var(--muted);line-height:1.7}

/* ── DEVIS / CONTACT ────────────────────────────────────────────── */
#devis,.devis-section{background:var(--bg2)}
.devis-wrap{display:grid;grid-template-columns:5fr 7fr;gap:clamp(3rem,6vw,6rem);
  align-items:start}
.devis-intro .h2{margin-bottom:1.2rem}
.devis-intro .body-lg{margin-bottom:1.5rem}
.devis-engagements{display:flex;flex-direction:column;gap:.8rem}
.engagement{display:flex;align-items:baseline;gap:.8rem}
.engagement::before{content:'';width:5px;height:5px;background:var(--argile);
  flex-shrink:0;position:relative;top:-.1rem}
.engagement-text{font-family:var(--ff-b);font-size:.85rem;color:var(--muted);line-height:1.6}
form.devis-form{display:flex;flex-direction:column;gap:1.1rem}
.field-group{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:600px){.field-group{grid-template-columns:1fr}}
.field label{display:block;font-family:var(--ff-u);font-size:.65rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:.45rem}
.field input,.field select,.field textarea{width:100%;
  background:var(--bg);border:1px solid var(--border);
  color:var(--fg);font-family:var(--ff-b);font-size:.9rem;
  padding:.75rem 1rem;outline:none;transition:border-color .2s;appearance:none}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--argile)}
.field textarea{resize:vertical;min-height:100px}
.form-submit{background:var(--argile);color:#fff;border:none;
  font-family:var(--ff-u);font-size:.72rem;letter-spacing:.13em;text-transform:uppercase;
  padding:1rem 2.5rem;cursor:pointer;transition:opacity .2s;text-align:left;
  display:flex;align-items:center;gap:1rem;width:fit-content}
.form-submit:hover{opacity:.85}
.form-submit:disabled{opacity:.6;cursor:wait}
.form-submit svg{width:1rem;height:1rem;stroke:currentColor;fill:none;stroke-width:2}
.form-note{font-family:var(--ff-b);font-size:.72rem;color:var(--muted);margin-top:.5rem}
.form-error{display:none;background:#8c3b2c;color:#fff;padding:1rem 1.2rem;font-family:var(--ff-b);font-size:.85rem;margin-top:1rem}
@media(max-width:860px){.devis-wrap{grid-template-columns:1fr}}

/* honeypot — champ anti-spam invisible, jamais rempli par un humain */
.hp-field{position:absolute;left:-9999px;top:-9999px;width:1px;height:1px;overflow:hidden}

.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--border);margin-top:clamp(2.5rem,5vw,4rem)}
@media(max-width:800px){.contact-cards{grid-template-columns:1fr}}
.contact-card{background:var(--bg);padding:1.8rem}
.contact-card h3{margin-bottom:.6rem}
.contact-card a,.contact-card address{font-family:var(--ff-b);font-size:.88rem;
  color:var(--muted);text-decoration:none;font-style:normal;line-height:1.6;display:block}
.contact-card a:hover{color:var(--argile)}
.map-embed{margin-top:clamp(2.5rem,5vw,4rem);border:1px solid var(--border);
  filter:grayscale(.25) contrast(1.05)}
.map-embed iframe{width:100%;height:360px;display:block;border:0}

/* ── FOOTER ─────────────────────────────────────────────────────── */
footer{background:var(--encre);padding-block:clamp(3rem,6vw,5rem) clamp(1.5rem,3vw,2.5rem)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;
  gap:clamp(2rem,4vw,4rem);margin-bottom:clamp(2rem,4vw,4rem)}
.footer-brand .nav-logo{margin-bottom:1.2rem}
.footer-tagline{font-family:var(--ff-d);font-style:italic;font-size:1.1rem;
  color:rgba(255,255,255,.5);line-height:1.5;max-width:22ch;margin-bottom:1.5rem}
.footer-social{display:flex;gap:.8rem}
.footer-social a{width:2rem;height:2rem;border:1px solid rgba(255,255,255,.2);
  display:grid;place-items:center;color:rgba(255,255,255,.5);
  text-decoration:none;font-size:.75rem;transition:border-color .2s,color .2s}
.footer-social a:hover{border-color:var(--argile);color:var(--argile)}
.footer-col h4{font-family:var(--ff-u);font-size:.62rem;letter-spacing:.14em;
  text-transform:uppercase;color:rgba(255,255,255,.35);margin-bottom:1.1rem}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:.6rem}
.footer-col li a{font-family:var(--ff-b);font-size:.82rem;color:rgba(255,255,255,.55);
  text-decoration:none;transition:color .2s}
.footer-col li a:hover{color:var(--argile)}
.footer-col address{font-style:normal;display:flex;flex-direction:column;gap:.6rem}
.footer-col address a{font-family:var(--ff-b);font-size:.82rem;color:rgba(255,255,255,.55);
  text-decoration:none;transition:color .2s}
.footer-col address a:hover{color:var(--argile)}
.footer-bottom{border-top:1px solid #2a2825;padding-top:1.5rem;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}
.footer-bottom p{font-family:var(--ff-b);font-size:.72rem;color:rgba(255,255,255,.3)}
.footer-bottom a{color:rgba(255,255,255,.3);text-decoration:none;
  transition:color .2s}
.footer-bottom a:hover{color:var(--argile)}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.footer-grid{grid-template-columns:1fr}}

/* ── WHATSAPP FLOAT ──────────────────────────────────────────────── */
.whatsapp-float{position:fixed;bottom:1.5rem;right:1.5rem;z-index:90;
  display:flex;align-items:center;gap:.65rem;
  background:#25D366;color:#fff;padding:.65rem 1.1rem;
  text-decoration:none;box-shadow:0 4px 16px rgba(37,211,102,.35);
  transition:transform .2s,box-shadow .2s}
.whatsapp-float:hover{transform:translateY(-2px);box-shadow:0 6px 22px rgba(37,211,102,.45)}
.whatsapp-float svg{width:1.2rem;height:1.2rem;fill:currentColor;flex-shrink:0}
.whatsapp-float span{font-family:var(--ff-u);font-size:.68rem;letter-spacing:.06em;
  text-transform:uppercase;white-space:nowrap}
@media(max-width:480px){.whatsapp-float span{display:none}}

/* ── SKIP LINK (accessibilité clavier) ──────────────────────────── */
.skip-link{position:absolute;left:1rem;top:-3rem;z-index:200;background:var(--argile);
  color:#fff;padding:.7rem 1.2rem;font-family:var(--ff-u);font-size:.75rem;
  text-decoration:none;transition:top .2s}
.skip-link:focus{top:1rem}

/* ── CONTENU LÉGAL (mentions légales / confidentialité) ─────────── */
.legal-content{max-width:72ch;margin-top:clamp(2rem,4vw,3rem)}
.legal-content h2{font-family:var(--ff-u);font-weight:500;font-size:1.1rem;
  margin:2.2rem 0 .8rem}
.legal-content h2:first-child{margin-top:0}
.legal-content p,.legal-content li{font-family:var(--ff-b);font-size:.9rem;
  color:var(--muted);line-height:1.75;margin-bottom:.8rem}
.legal-content li{margin-left:1.2rem}
.legal-content strong{color:var(--fg);font-weight:500}
.legal-content a{color:var(--argile);text-decoration:underline}

/* ── 404 ─────────────────────────────────────────────────────────── */
.notfound{min-height:70vh;display:flex;flex-direction:column;justify-content:center;
  align-items:flex-start;padding-top:clamp(6rem,12vw,8rem)}
.notfound .mark-big{width:4rem;height:4rem;background:var(--argile);color:#fff;
  display:grid;place-items:center;font-family:var(--ff-d);font-style:italic;font-weight:400;font-size:2.5rem;
  margin-bottom:1.5rem}

/* ── SIMULATEUR DE BUDGET ───────────────────────────────────────────── */
.sim-wrap{display:grid;grid-template-columns:1fr 22rem;gap:clamp(2rem,4vw,3.5rem);align-items:start}
@media(max-width:900px){.sim-wrap{grid-template-columns:1fr}}

.sim-progress{display:flex;align-items:center;gap:.6rem;margin-bottom:clamp(2rem,4vw,3rem)}
.sim-dot{width:2rem;height:2rem;flex-shrink:0;border:1.5px solid var(--border);background:var(--bg);
  display:grid;place-items:center;font-family:var(--ff-u);font-size:.75rem;font-weight:600;
  color:var(--muted);cursor:pointer;transition:border-color .2s,color .2s,background .2s}
.sim-dot.active{border-color:var(--argile);color:var(--argile)}
.sim-dot.done{background:var(--argile);border-color:var(--argile);color:#fff}
.sim-dot-line{flex:1;height:1px;background:var(--border)}

.sim-step-title{font-family:var(--ff-u);font-weight:500;font-size:1.1rem;margin-bottom:1.5rem}
.sim-type-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:560px){.sim-type-grid{grid-template-columns:1fr}}
.sim-type-card{border:1px solid var(--border);background:var(--bg2);padding:1.5rem 1.25rem;
  cursor:pointer;text-align:left;font-family:inherit;color:var(--fg);transition:border-color .2s,background .2s}
.sim-type-card:hover{border-color:var(--argile)}
.sim-type-card.selected{border-color:var(--argile);background:var(--bg)}
.sim-type-card .sim-type-name{font-family:var(--ff-u);font-weight:500;font-size:.95rem;margin-bottom:.35rem}
.sim-type-card .sim-type-desc{font-family:var(--ff-b);font-size:.78rem;color:var(--muted)}

.sim-surface-value{font-family:var(--ff-u);font-weight:600;font-size:2.2rem;color:var(--argile);margin-bottom:1rem}
input.sim-range{width:100%;accent-color:var(--argile);height:2px}
.sim-range-labels{display:flex;justify-content:space-between;font-family:var(--ff-b);
  font-size:.75rem;color:var(--muted);margin-top:.5rem}

.sim-choice-row{display:flex;flex-direction:column;gap:.75rem}
.sim-finition-btn,.sim-prestation-btn{border:1px solid var(--border);background:var(--bg2);
  padding:1rem 1.25rem;text-align:left;cursor:pointer;font-family:inherit;color:var(--fg);
  transition:border-color .2s,background .2s}
.sim-finition-btn:hover,.sim-prestation-btn:hover{border-color:var(--argile)}
.sim-finition-btn.selected,.sim-prestation-btn.selected{border-color:var(--argile);background:var(--bg)}
.sim-choice-name{font-family:var(--ff-u);font-weight:500;font-size:.92rem;margin-bottom:.25rem}
.sim-choice-desc{font-family:var(--ff-b);font-size:.78rem;color:var(--muted)}

.sim-nav{display:flex;justify-content:space-between;align-items:center;margin-top:2.5rem}

.sim-panel{position:sticky;top:6rem;border:1px solid var(--border);background:var(--bg2);
  padding:1.75rem;opacity:.45;transition:opacity .3s}
.sim-panel.ready{opacity:1}
.sim-panel-title{font-family:var(--ff-u);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);margin-bottom:1.25rem}
.sim-gauge-label{display:flex;justify-content:space-between;font-family:var(--ff-u);
  font-size:.7rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:.4rem}
.sim-gauge{height:.5rem;background:var(--border);margin-bottom:.5rem;overflow:hidden}
.sim-gauge-fill{height:100%;width:0;background:var(--argile);transition:width .4s ease}
.sim-gauge-text{font-family:var(--ff-u);font-weight:600;font-size:1.05rem;color:var(--fg);margin-bottom:1.25rem}
.sim-panel-summary{font-family:var(--ff-b);font-size:.78rem;color:var(--muted);
  padding-top:1rem;border-top:1px solid var(--border);line-height:1.6}

.sim-result{margin-top:clamp(3rem,6vw,4.5rem);padding-top:clamp(2rem,4vw,3rem);
  border-top:1px solid var(--border);text-align:center}
.sim-result-price{font-family:var(--ff-u);font-weight:600;font-size:clamp(1.6rem,4vw,2.4rem);color:var(--argile)}
.sim-result-delay{font-family:var(--ff-b);font-size:.95rem;color:var(--muted);margin-top:.5rem}
.sim-disclaimer{font-family:var(--ff-b);font-size:.75rem;color:var(--muted);max-width:44ch;
  margin:1.25rem auto 0;line-height:1.6}
.sim-cta-row{margin-top:1.5rem}

/* ── MOODBOARD / STUDIO DE MATIÈRES ─────────────────────────────────── */
.mb-wrap{display:grid;grid-template-columns:1fr 22rem;gap:clamp(2rem,4vw,3.5rem);align-items:start}
@media(max-width:900px){.mb-wrap{grid-template-columns:1fr}}

/* indicateur de progression — carrés, écho du logo */
.mb-progress{display:flex;gap:.5rem;margin-bottom:clamp(2rem,4vw,3rem)}
.mb-pstep{width:1.6rem;height:1.6rem;border:1.5px solid var(--fg);display:grid;place-items:center;
  font-family:var(--ff-u);font-size:.68rem;font-weight:600;color:var(--fg);
  transition:background .3s,border-color .3s,color .3s}
.mb-pstep.done{background:var(--argile);border-color:var(--argile);color:#fff}

.mb-cat{margin-bottom:clamp(2rem,4vw,3rem)}

.mb-ambiance-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
@media(max-width:700px){.mb-ambiance-grid{grid-template-columns:repeat(2,1fr)}}
.mb-ambiance-card{border:1.5px solid var(--border);background:var(--bg2);padding:1rem;
  cursor:pointer;text-align:left;font-family:inherit;color:var(--fg);transition:border-color .18s,transform .18s}
.mb-ambiance-card:hover{border-color:var(--argile);transform:translateY(-3px)}
.mb-ambiance-card.selected{border-color:var(--fg);border-width:2px}
.mb-ambiance-swatch{display:block;height:3.5rem;margin-bottom:.75rem;
  background:linear-gradient(135deg,var(--mb-a1) 0%,var(--mb-a2) 55%,var(--mb-a3) 100%)}
.mb-ambiance-name{font-family:var(--ff-u);font-weight:500;font-size:.8rem;line-height:1.3}

.mb-swatch-row{display:flex;flex-wrap:wrap;gap:1rem}
.mb-swatch{border:1.5px solid var(--border);background:var(--bg2);padding:.65rem;width:8.5rem;
  cursor:pointer;text-align:left;font-family:inherit;color:var(--fg);transition:border-color .18s,transform .18s}
.mb-swatch:hover{border-color:var(--argile);transform:translateY(-3px)}
.mb-swatch.selected{border-color:var(--fg);border-width:2px}
.mb-swatch-chip{display:block;height:4.5rem;margin-bottom:.6rem}
.mb-swatch-name{font-family:var(--ff-b);font-size:.74rem;line-height:1.35;color:var(--fg)}

.mb-result-ambiance{font-family:var(--ff-d);font-weight:400;font-style:italic;
  font-size:clamp(1.3rem,3vw,1.8rem);color:var(--argile);margin-top:.5rem}

/* pièce illustrée — le moment "vivant" */
.mb-panel{position:sticky;top:6rem;border:1px solid var(--border);background:var(--bg2)}
.mb-room{aspect-ratio:4/3;background:var(--encre);overflow:hidden}
.mb-room svg rect,.mb-room svg polygon{transition:fill .3s ease}
.mb-panel-body{padding:1.5rem}
.mb-panel-title{font-family:var(--ff-u);font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);margin-bottom:1.1rem}

.mb-preview{display:grid;gap:.5rem;margin-bottom:1.1rem}
.mb-preview-swatch{display:flex;justify-content:space-between;align-items:center;
  border:1px solid var(--border);background:var(--bg);padding:.55rem .8rem;transition:background .3s,color .3s,border-color .3s}
.mb-preview-swatch.filled{color:#fff;border-color:transparent}
.mb-preview-label{font-family:var(--ff-u);font-size:.62rem;letter-spacing:.08em;
  text-transform:uppercase;opacity:.75}
.mb-preview-value{font-family:var(--ff-b);font-size:.78rem;font-weight:500}

/* ── ASSISTANT IA (chat widget) ─────────────────────────────────────── */
/* Bouton fermé : icône circulaire seule, même gabarit que .whatsapp-float,
   pour ne jamais encombrer l'écran (demande client explicite). */
.chat-widget{position:fixed;bottom:1.5rem;left:1.5rem;z-index:95;font-family:var(--ff-b)}
.chat-toggle{width:3.2rem;height:3.2rem;display:grid;place-items:center;background:var(--encre);
  color:#fff;border:none;cursor:pointer;transition:opacity .2s,transform .2s}
.chat-toggle:hover{opacity:.85;transform:translateY(-2px)}
.chat-toggle svg{width:1.3rem;height:1.3rem;stroke:currentColor;fill:none;stroke-width:1.6;flex-shrink:0}
.chat-panel{position:absolute;bottom:3.9rem;left:0;width:min(350px,calc(100vw - 2rem));background:var(--bg);
  border:1px solid var(--border);display:flex;flex-direction:column;max-height:min(520px,72vh)}
.chat-panel-head{background:var(--encre);color:#fff;padding:.9rem 1.1rem;display:flex;
  justify-content:space-between;align-items:center;flex-shrink:0}
.chat-panel-title{font-family:var(--ff-u);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase}
.chat-close{background:none;border:none;color:rgba(255,255,255,.7);font-size:1.2rem;cursor:pointer;
  line-height:1;padding:0}
.chat-close:hover{color:#fff}
.chat-messages{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.6rem;
  min-height:200px}
.chat-msg{font-size:.82rem;line-height:1.55;padding:.6rem .8rem;max-width:86%}
.chat-msg-bot{background:var(--bg2);color:var(--fg);align-self:flex-start;border:1px solid var(--border)}
.chat-msg-user{background:var(--argile);color:#fff;align-self:flex-end}
.chat-msg-typing{opacity:.65;font-style:italic}
.chat-form{display:flex;border-top:1px solid var(--border);flex-shrink:0}
.chat-form input{flex:1;border:none;padding:.75rem .9rem;font-family:var(--ff-b);font-size:.82rem;
  background:var(--bg);color:var(--fg)}
.chat-form input:focus{outline:none}
.chat-form button{background:var(--argile);color:#fff;border:none;width:2.8rem;cursor:pointer;
  font-size:1.1rem;flex-shrink:0}
.chat-form button:hover{opacity:.85}
.chat-footnote{font-size:.65rem;color:var(--muted);padding:.55rem .9rem;border-top:1px solid var(--border);
  flex-shrink:0}
.chat-footnote a{color:var(--argile)}
@media(max-width:480px){
  .chat-widget{left:1rem;bottom:1rem}
  .chat-toggle{width:2.9rem;height:2.9rem}
}

/* ── SCROLL FADE-IN ──────────────────────────────────────────────── */
.fade-up{opacity:0;transform:translateY(28px);
  transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .fade-up{opacity:1;transform:none;transition:none}
}

/* ── AI SPACE VISUALIZER (Phase 4/4) ────────────────────────────────── */
.vz-wrap{max-width:46rem;margin:0 auto}
.vz-upload{border:1.5px dashed var(--border);background:var(--bg2);padding:clamp(1.75rem,4vw,2.5rem);
  text-align:center;cursor:pointer;transition:border-color .2s}
.vz-upload:hover,.vz-upload.dragover{border-color:var(--argile)}
.vz-upload input[type=file]{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.vz-upload-label{font-family:var(--ff-u);font-weight:500;font-size:.95rem;margin-bottom:.4rem}
.vz-upload-hint{font-family:var(--ff-b);font-size:.78rem;color:var(--muted)}
.vz-preview{margin-top:1.25rem}
.vz-preview img{display:block;max-width:100%;max-height:20rem;margin:0 auto;object-fit:contain}
.vz-file-error{font-family:var(--ff-b);font-size:.8rem;color:var(--argile);margin-top:.75rem}

.vz-step-title{font-family:var(--ff-u);font-weight:500;font-size:1.1rem;margin:clamp(2rem,4vw,3rem) 0 1.5rem}

.vz-submit-row{margin-top:clamp(2rem,4vw,2.5rem);text-align:center}

.vz-status{text-align:center;padding:clamp(2rem,4vw,3rem) 0;border-top:1px solid var(--border);
  margin-top:clamp(2rem,4vw,3rem)}
.vz-status p{font-family:var(--ff-b);font-size:.9rem;color:var(--muted);max-width:46ch;margin:0 auto 1.25rem}
.vz-status-title{font-family:var(--ff-u);font-weight:500;font-size:1rem;color:var(--fg);margin-bottom:.6rem}

.vz-result{margin-top:clamp(2rem,4vw,3rem)}
.vz-result .sim-cta-row{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}