/* Béton Chevalier — concept de refonte. Schibsted Grotesk + IBM Plex Sans ; béton clair, encre, l'ardoise du favicon en sombre, le rouge du logo en accent. */
:root{
  --paper:#EDEBE6; --paper-2:#E3E0DA; --paper-3:#D6D2CA;
  --ink:#15181B; --muted:#66665F;
  --red:#C41617; --red-text:#A81216; --red-soft:#D9484A;
  --slate:#223C47; --slate-2:#182C35; --slate-3:#2C4A57;
  --line:rgba(21,24,27,.16); --line-dark:rgba(237,235,230,.16); --paper-dim:rgba(237,235,230,.74);
  --ease:cubic-bezier(.22,.61,.36,1); --ease-out:cubic-bezier(.16,1,.3,1);
  --gutter:clamp(20px,4.5vw,64px); --max:1480px; --side:max(var(--gutter),(100% - var(--max))/2);
  --head:'Schibsted Grotesk',system-ui,-apple-system,'Segoe UI',sans-serif; --sans:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --t-display:clamp(44px,6.8vw,96px); --t-h2:clamp(34px,4.2vw,64px); --t-h3:clamp(21px,1.9vw,27px); --t-lede:clamp(17px,1.35vw,20px);
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden;overflow-x:clip}
[hidden]{display:none!important}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
h1,h2,h3,p,ul,ol,dl,dd,figure,blockquote,address{margin:0}
address{font-style:normal}
ul,ol{padding:0;list-style:none}
h1,h2,h3{font-family:var(--head);font-optical-sizing:auto;font-stretch:87.5%;font-weight:600;letter-spacing:-.02em}
:focus-visible{outline:2px solid var(--red);outline-offset:4px;border-radius:2px}
.dark :focus-visible,.hero :focus-visible,.menu :focus-visible,.nav:not(.is-solid) :focus-visible{outline-color:var(--paper)}
.skip{position:absolute;left:16px;top:-60px;z-index:100;background:var(--ink);color:var(--paper);padding:10px 14px;border-radius:999px;font-size:14px;text-decoration:none}
.skip:focus{top:16px}
.wrap{width:min(100% - 2*var(--gutter),var(--max));margin-inline:auto}

/* type */
.eyebrow{font:600 12px/1.3 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--red-text);margin-bottom:22px}
.display{font:600 var(--t-display)/.96 var(--head);font-stretch:87.5%;letter-spacing:-.03em;text-wrap:balance}
.headline{font:600 var(--t-h2)/1.02 var(--head);font-stretch:87.5%;letter-spacing:-.025em;text-wrap:balance}
.lede{font:400 var(--t-lede)/1.55 var(--sans);color:var(--muted);max-width:54ch;margin-top:26px}
.body{margin-top:22px;max-width:54ch;color:var(--muted)}
.note{font:500 clamp(19px,1.6vw,24px)/1.45 var(--head);font-stretch:100%;letter-spacing:-.01em;max-width:42ch;margin-top:30px}
.small{font-size:14px;color:var(--muted)}
.mask{display:block;overflow:hidden;padding:0 .12em .16em 0;margin:0 -.12em -.16em 0}
.mask>span{display:block}
.js:not(.no-anim) .mask>span{transform:translateY(112%)}
.js:not(.no-anim) [data-reveal]{opacity:0;transform:translateY(24px)}
.js:not(.no-anim) [data-intro]{opacity:0;transform:translateY(18px)}
.js:not(.no-anim) [data-reveal-x]{opacity:0}
.js.no-anim .mask>span,.js.no-anim [data-reveal],.js.no-anim [data-reveal-x],.js.no-anim [data-intro]{opacity:1;transform:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}
.section-head{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px var(--gutter);align-items:end;padding-top:clamp(88px,12vw,160px);margin-bottom:clamp(48px,6vw,88px)}
.section-head .eyebrow{grid-column:1/-1}
.section-head .lede{margin-top:0;padding-bottom:.5em}
@media (max-width:899px){.section-head{grid-template-columns:1fr}.section-head .lede{padding-bottom:0}}

/* buttons, links */
.btn{position:relative;display:inline-flex;align-items:center;gap:14px;padding:18px 28px;border:1px solid currentColor;font:600 12.5px/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;text-decoration:none;color:inherit;isolation:isolate;overflow:hidden;transition:color .45s var(--ease),border-color .45s var(--ease);white-space:nowrap;font-variant-numeric:tabular-nums}
.btn::after{content:"";position:absolute;inset:-1px;z-index:-1;background:var(--btn-fill);transform:scaleY(0);transform-origin:bottom;transition:transform .5s var(--ease-out)}
.btn:hover::after,.btn:focus-visible::after{transform:scaleY(1)}
.btn i{font-style:normal;transition:transform .45s var(--ease-out)}
.btn:hover i,.btn:focus-visible i{transform:translateX(6px)}
.btn-paper{--btn-fill:var(--paper);color:var(--paper)}
.btn-paper:hover,.btn-paper:focus-visible{color:var(--ink);border-color:var(--paper)}
.btn-lg{padding:22px 34px;font-size:14px}
.link{display:inline-flex;align-items:center;gap:10px;font:600 12.5px/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;text-decoration:none;padding:12px 0 9px;position:relative;min-height:44px}
.link::after,.link::before{content:"";position:absolute;left:0;right:0;bottom:0;height:1px}
.link::after{background:currentColor;opacity:.3}
.link::before{background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease);z-index:1}
.link:hover::before,.link:focus-visible::before{transform:scaleX(1)}
.link i{font-style:normal;transition:transform .45s var(--ease-out)}
.link:hover i,.link:focus-visible i{transform:translateX(5px)}
.link.quiet{opacity:.7;font-weight:500}
.link.quiet::after{display:none}
.link.quiet:hover,.link.quiet:focus-visible{opacity:1}
.link.quiet:hover i,.link.quiet:focus-visible i{transform:translateY(4px)}

/* nav */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;align-items:center;gap:30px;padding:16px var(--gutter);color:var(--paper);transition:background .45s var(--ease),color .45s var(--ease),border-color .45s var(--ease);border-bottom:1px solid transparent}
html:not(.js) .nav{position:absolute}
html:not(.js) .nav-links,html:not(.js) .btn-nav{display:flex;flex-wrap:wrap}
html:not(.js) .nav-burger{display:none}
.nav.is-solid{background:rgba(237,235,230,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--ink);border-bottom-color:var(--line)}
.nav.menu-open{background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;color:var(--paper);border-bottom-color:transparent}
.nav-logo{display:inline-flex;align-items:center;text-decoration:none;margin-right:auto}
.nav-logo img{width:auto;height:52px;transform-origin:left center;transition:transform .45s var(--ease)}
.is-solid .nav-logo img{transform:scale(.82)}
.logo-dark{display:none}
.is-solid:not(.menu-open) .logo-light{display:none}
.is-solid:not(.menu-open) .logo-dark{display:block}
.nav-links{display:flex;gap:6px}
.nav-links a{position:relative;padding:10px 12px;font:500 12.5px/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;text-decoration:none;opacity:.86;transition:opacity .3s}
.nav-links a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:1px;background:var(--red);transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ease-out)}
.nav-links a:hover,.nav-links a:focus-visible{opacity:1}
.nav-links a:hover::after,.nav-links a:focus-visible::after{transform:scaleX(1);transform-origin:left}
.btn-nav{padding:13px 22px;font-size:12px;letter-spacing:.08em;--btn-fill:var(--paper);color:var(--paper)}
.btn-nav:hover,.btn-nav:focus-visible{color:var(--ink);border-color:var(--paper)}
.is-solid .btn-nav{--btn-fill:var(--red);color:var(--red-text);border-color:var(--red)}
.is-solid .btn-nav:hover,.is-solid .btn-nav:focus-visible{color:var(--paper);border-color:var(--red)}
.menu-open .btn-nav{--btn-fill:var(--paper);color:var(--paper)}
.nav-burger{display:none;width:44px;height:44px;border:0;background:none;color:inherit;cursor:pointer;flex-direction:column;justify-content:center;gap:6px;align-items:center}
.nav-burger span{display:block;width:24px;height:1.5px;background:currentColor;transition:transform .4s var(--ease)}
.nav-burger[aria-expanded="true"] span:first-child{transform:translateY(3.75px) rotate(45deg)}
.nav-burger[aria-expanded="true"] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}
.menu{position:fixed;inset:0;z-index:45;background:var(--slate);color:var(--paper);padding:110px var(--gutter) 40px;overflow-y:auto;overscroll-behavior:contain}
.menu nav{display:flex;flex-direction:column;gap:6px}
.menu nav>a:not(.btn){font:500 clamp(28px,6.5vw,44px)/1.2 var(--head);font-stretch:87.5%;text-decoration:none;padding:8px 0;border-bottom:1px solid var(--line-dark)}
.menu nav>a.btn{margin-top:24px;align-self:flex-start}
@media (max-width:1023px){.nav-links,.btn-nav{display:none}.nav-burger{display:flex}}

/* hero */
.hero{position:relative;height:min(100vh,891px);height:min(100svh,891px);min-height:640px;background:var(--slate-2);color:var(--paper);overflow:hidden;isolation:isolate}
.hero-media{position:absolute;inset:0;z-index:0;overflow:hidden;will-change:transform}
.hero-media picture{position:absolute;inset:0}
.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 62%}
.hero-veil{position:absolute;inset:0;z-index:1;background:linear-gradient(84deg,rgba(14,22,27,.86) 0%,rgba(14,22,27,.6) 40%,rgba(14,22,27,.16) 74%),linear-gradient(to top,rgba(14,22,27,.62) 0%,rgba(14,22,27,0) 40%),linear-gradient(to bottom,rgba(14,22,27,.56) 0%,rgba(14,22,27,0) 26%)}
.hero-shade{position:absolute;inset:0;z-index:2;background:#0B1418;opacity:0;pointer-events:none}
.hero-content{position:absolute;z-index:3;left:var(--gutter);right:var(--gutter);top:50%;transform:translateY(-46%);max-width:1040px}
.hero-eyebrow{color:rgba(237,235,230,.8);margin-bottom:26px}
.hero-title{font:600 clamp(40px,6vw,92px)/.96 var(--head);font-stretch:87.5%;letter-spacing:-.03em;text-shadow:0 2px 40px rgba(11,20,24,.35)}
.hero-title .mask{padding:0 .06em .08em 0;margin:0 -.06em -.08em 0}
.hero-lede{margin-top:32px;max-width:560px;font-size:17px;line-height:1.65;color:rgba(237,235,230,.88)}
.hero-ctas{margin-top:32px;display:flex;gap:44px;align-items:center;flex-wrap:wrap}
.hero-foot{position:absolute;z-index:3;left:var(--gutter);right:var(--gutter);bottom:28px;display:flex;justify-content:space-between;align-items:center;gap:24px;font:500 12px/1.3 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:rgba(237,235,230,.64)}
.scroll-cue{display:inline-flex;align-items:center;gap:14px}
.scroll-cue i{width:1px;height:40px;background:currentColor;opacity:.5;position:relative;overflow:hidden}
.scroll-cue i::after{content:"";position:absolute;inset:0;background:var(--red);transform:translateY(-100%);animation:cue 2.2s var(--ease) infinite}
@keyframes cue{0%{transform:translateY(-100%)}55%{transform:translateY(0)}100%{transform:translateY(100%)}}
@media (max-width:720px){
  .hero{min-height:600px}
  .hero-media img{object-position:50% 60%}
  .hero-veil{background:linear-gradient(to top,rgba(14,22,27,.9) 0%,rgba(14,22,27,.66) 42%,rgba(14,22,27,.2) 70%,rgba(14,22,27,.5) 100%)}
  .hero-content{top:auto;bottom:88px;transform:none}
  .hero-title{font-size:clamp(30px,8.6vw,46px)}
  .hero-eyebrow{font-size:12px;letter-spacing:.1em;margin-bottom:18px}
  .hero-lede{margin-top:20px;font-size:15px;line-height:1.55}
  .hero-ctas{gap:14px;flex-direction:column;align-items:flex-start;margin-top:20px}
  .hero-foot{font-size:12px;letter-spacing:.1em;bottom:22px}
  .hero-foot .scroll-cue{display:none}
}

/* glance : a red rule draws, then four facts */
.glance{position:relative;display:grid;grid-template-columns:repeat(4,1fr);padding:88px 0}
.glance::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--red);transform-origin:left;transition:transform 1.8s var(--ease)}
.js:not(.no-anim) .glance::before{transform:scaleX(0)}
.js:not(.no-anim) .glance.is-in::before{transform:scaleX(1)}
.glance-item{padding:8px 36px;border-left:1px solid var(--line)}
.glance-item:first-child{border-left:0;padding-left:0}
.glance .big{font:600 clamp(32px,2.9vw,44px)/1.05 var(--head);font-stretch:87.5%;letter-spacing:-.025em;font-variant-numeric:tabular-nums}
.glance .small{margin-top:10px;font:500 12px/1.5 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);max-width:26ch}
@media (max-width:899px){.glance{grid-template-columns:1fr 1fr;row-gap:40px;padding:64px 0}.glance-item{padding:0 0 0 22px}.glance-item:nth-child(3){border-left:0;padding-left:0}}
@media (max-width:599px){.glance{grid-template-columns:1fr;row-gap:0;padding:48px 0}.glance-item{padding:22px 0;border-left:0;border-top:1px solid var(--line)}.glance-item:first-child{border-top:0;padding-top:0}}

/* dark */
.dark{background:var(--slate);color:var(--paper)}
.dark .eyebrow{color:var(--red-soft)}
.dark .lede{color:var(--paper-dim)}
.dark .note{color:var(--paper)}

/* frames : 120 % reserve for the parallax ; a plain frame for the small pictures */
.frame{overflow:hidden;background:var(--paper-2);position:relative}
.frame img{width:100%;height:100%;object-fit:cover}
.frame img[data-parallax]{height:120%;will-change:transform}
html:not(.js) .frame img[data-parallax],.no-anim .frame img[data-parallax]{transform:translateY(-16%)}
.frame-tall{aspect-ratio:4/5}

/* what : one photo, nine concretes in a numbered list */
.what{padding-bottom:clamp(88px,12vw,160px)}
.what-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(36px,4.5vw,64px) var(--gutter);align-items:start}
.what-figure{position:sticky;top:96px}
.products{display:grid;grid-template-columns:1fr 1fr;gap:0 var(--gutter);border-top:1px solid var(--ink)}
.products li{display:grid;grid-template-columns:44px 1fr;gap:0 14px;padding:22px 0 24px;border-bottom:1px solid var(--line);align-items:start}
/* 01 tient les deux colonnes, son titre et son texte côte à côte ; les huit autres remplissent
   quatre rangées pleines. Avant le 2026-09-22, le 07 était lui aussi en pleine largeur : il restait
   trois demi-rangées vides à droite — « c'est mal réparti, il y a des points avec rien à droite »
   (Gabriel, sur capture). Une grille de neuf ne se coupe pas deux fois. */
.products li:first-child>div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 var(--gutter);align-items:baseline}
.products li:first-child h3{margin-bottom:0}
.products li:first-child{grid-column:1/-1}
.p-n{font:500 13px/1.7 var(--sans);letter-spacing:.08em;color:var(--red-text);font-variant-numeric:tabular-nums}
.products h3{font:600 var(--t-h3)/1.15 var(--head);font-stretch:87.5%;letter-spacing:-.02em;margin-bottom:6px}
.products p{color:var(--muted);font-size:15px;line-height:1.55;max-width:38ch}
.norms{margin-top:clamp(48px,6vw,88px);padding-top:28px;border-top:2px solid var(--red);font:500 clamp(19px,1.7vw,25px)/1.45 var(--head);font-stretch:100%;letter-spacing:-.01em;max-width:62ch}
.norms em{font-style:normal;color:var(--red-text)}
@media (max-width:899px){.what-grid{grid-template-columns:1fr}.what-figure{position:static}.frame-tall{aspect-ratio:3/2}}
@media (max-width:599px){.products{grid-template-columns:1fr}.products li:first-child{grid-column:auto}.products li:first-child>div{grid-template-columns:1fr}}

/* plants : the map stays, the seven cards scroll past and light their pin */
.plants{position:relative;background:var(--paper-2);padding:clamp(88px,12vw,160px) 0 clamp(72px,9vw,130px);overflow:clip;isolation:isolate}
.plants-texture{position:absolute;inset:0;z-index:0;opacity:.09;mix-blend-mode:multiply;pointer-events:none;
  background:url(../img/texture-beton.jpg) repeat;background-size:834px 556px}
.plants-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:48px var(--gutter);align-items:start}
.plants-map .lede{max-width:44ch}
.map{margin-top:clamp(28px,3vw,44px);max-width:560px}
.map svg{width:100%;height:auto;display:block;overflow:visible}
.map-river{stroke:var(--paper-3);stroke-width:26;stroke-linecap:round}
.map-river-2{stroke:rgba(34,60,71,.22);stroke-width:1.5;stroke-dasharray:3 6}
.map-label{font:500 15px/1 var(--sans);fill:var(--ink);letter-spacing:.01em;transition:fill .45s var(--ease)}
.map-label-river{font-size:12px;letter-spacing:.16em;text-transform:uppercase;fill:var(--muted)}
.map-label-city{font-size:12px;letter-spacing:.12em;text-transform:uppercase;fill:var(--muted)}
.map-city{fill:var(--muted)}
.map-route{stroke:var(--red);stroke-width:2;stroke-linejoin:round;opacity:.9}
.pin-halo{fill:var(--red);opacity:0;transform-origin:center;transform-box:fill-box;transform:scale(.4);transition:opacity .5s var(--ease),transform .7s var(--ease-out)}
.pin-dot{fill:var(--paper-3);stroke:var(--ink);stroke-width:1.5;transition:fill .45s var(--ease),stroke .45s var(--ease)}
.map-pin.is-on .pin-dot{fill:var(--red);stroke:var(--red)}
.map-pin.is-on .pin-halo{opacity:.18;transform:scale(1)}
.map-pin.is-on .map-label{fill:var(--ink);font-weight:600}
html:not(.js) .pin-dot,.no-anim .pin-dot{fill:var(--red);stroke:var(--red)}
.plants-list{padding-top:clamp(0px,4vw,56px)}
.plant{position:relative;padding:30px 0 34px 34px;border-top:1px solid var(--line)}
.plant:last-child{border-bottom:1px solid var(--line)}
.plant::before{content:"";position:absolute;left:0;top:38px;width:12px;height:12px;border-radius:50%;border:1.5px solid var(--ink);background:transparent;transition:background .45s var(--ease),border-color .45s var(--ease),transform .45s var(--ease)}
.plant.is-on::before,html:not(.js) .plant::before,.no-anim .plant::before{background:var(--red);border-color:var(--red)}
.plant.is-on::before{transform:scale(1.25)}
.plant .eyebrow{margin-bottom:10px;font-size:12px;color:var(--muted)}
.plant.is-on .eyebrow{color:var(--red-text)}
.plant h3{font:600 clamp(22px,2.1vw,30px)/1.1 var(--head);font-stretch:87.5%;letter-spacing:-.02em}
.plant address{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.5}
.plant-tel{display:inline-flex;align-items:center;gap:10px;margin-top:14px;font:600 15px/1 var(--sans);letter-spacing:.02em;text-decoration:none;color:var(--ink);font-variant-numeric:tabular-nums;position:relative;padding:10px 0 8px;min-height:44px}
.plant-tel::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease-out)}
.plant-tel:hover::after,.plant-tel:focus-visible::after{transform:scaleX(1)}
.plant-tel i{font-style:normal;transition:transform .45s var(--ease-out)}
.plant-tel:hover i,.plant-tel:focus-visible i{transform:translateX(5px)}
.plant-royal h3{color:var(--red-text)}
@media (min-width:900px){.js:not(.no-anim) .plants-map{will-change:transform}
  .js:not(.no-anim) .map{max-width:min(560px,calc((100svh - 400px) * 600 / 640))}}
@media (max-width:899px){.plants-grid{grid-template-columns:1fr}
  .map{max-width:440px}
  .map-pin .pin-dot{fill:var(--red);stroke:var(--red)}
  .map-pin .pin-halo{opacity:.14;transform:scale(1)}
  .plant::before,.plant .eyebrow{color:var(--red-text)}
  .plant::before{background:var(--red);border-color:var(--red)}
  .plants-list{padding-top:0}}

/* process : the line draws, the steps light up ; certifications stay at hand */
.process-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:48px var(--gutter);align-items:start;padding-bottom:clamp(88px,12vw,160px)}
.steps{position:relative;max-width:900px}
.steps-line{position:absolute;left:34px;top:12px;bottom:12px;width:1px;background:var(--line)}
.steps-line span{display:block;width:100%;height:100%;background:var(--red);transform:scaleY(0);transform-origin:top}
.step{display:grid;grid-template-columns:70px 1fr;gap:0 32px;padding:28px 0 34px;border-bottom:1px solid var(--line);align-items:start}
.step:last-child{border-bottom:0}
.step-n{font:500 clamp(28px,2.6vw,40px)/1 var(--head);font-stretch:87.5%;color:var(--muted);transition:color .45s var(--ease),transform .45s var(--ease);font-variant-numeric:tabular-nums;position:relative;z-index:1;background:var(--paper);width:70px;text-align:center;padding:6px 0}
.step h3{font:600 var(--t-h3)/1.15 var(--head);font-stretch:87.5%;letter-spacing:-.02em;margin-bottom:8px}
.step p{color:var(--muted);max-width:46ch}
.step.is-on .step-n,html:not(.js) .step-n,.no-anim .step-n{color:var(--red-text)}
.step.is-on .step-n{transform:translateX(4px)}
.creds{position:sticky;top:110px;padding:30px 32px 12px;background:var(--slate);color:var(--paper)}
.creds .eyebrow{margin-bottom:8px;color:var(--red-soft)}
.creds-list li{display:grid;grid-template-columns:64px 1fr;gap:14px;padding:16px 0;border-top:1px solid var(--line-dark);font-size:14.5px;line-height:1.5;color:var(--paper-dim)}
.creds-list li:first-child{border-top:0}
.creds-list strong{font:600 13px/1.6 var(--sans);letter-spacing:.08em;color:var(--paper)}
@media (max-width:899px){.process-grid{grid-template-columns:1fr}.creds{position:static}}
@media (max-width:599px){.step{grid-template-columns:52px 1fr;gap:0 18px}.step-n{width:52px}.steps-line{left:25px}.creds{padding:24px 22px 8px}.creds-list li{grid-template-columns:56px 1fr}}

/* works : le mur sombre. Six familles de chantiers, une bande par famille, une photo à la fois.
   Refait le 2026-09-22 : c'était une grille de huit vignettes — « c'est comme si tu regardais un
   album photo » — et les six familles tenaient dans une liste de puces au coin de la grille.
   Les dix-sept photos du prospect font 360x258 : le CADRE est dimensionné sur elles (--cw/--ch),
   jamais l'inverse, et le nom du chantier est un vrai titre, pas une légende. */
.works{position:relative;background:var(--slate);overflow:clip;isolation:isolate;padding-bottom:clamp(96px,12vw,160px)}
.works-open{position:relative;padding:clamp(120px,15vw,200px) 0 clamp(56px,7vw,96px)}
.works-bg{position:absolute;inset:0;z-index:0;opacity:.3;overflow:hidden}
.works-bg img{position:absolute;left:0;top:-8%;width:100%;height:auto}
.works-open::after{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(180deg,rgba(24,44,53,.62) 0%,rgba(34,60,71,.42) 46%,var(--slate) 100%)}
.works-head{position:relative;z-index:1;max-width:1000px}

.families{position:relative;z-index:1;display:grid;gap:clamp(52px,6vw,92px)}
.family .carr{--marge:40px}
.family{display:grid;grid-template-columns:minmax(0,442px) minmax(0,1fr);gap:clamp(26px,4vw,76px);align-items:center;padding-top:clamp(40px,5vw,68px);border-top:1px solid var(--line-dark)}
.family:first-child{border-top:0;padding-top:0}
/* une bande sur deux met le cadre à droite : il faut inverser AUSSI les largeurs de colonnes,
   sinon le texte se retrouve dans la colonne étroite et le cadre flotte au milieu d'une colonne
   large — 33 % d'écran vide à droite, mesuré par trous.py le 2026-09-22. */
.family:nth-child(even){grid-template-columns:minmax(0,1fr) minmax(0,442px)}
.family:nth-child(even) .family-media{order:2}

/* le cadre : un passe-partout autour d'une petite photo — 13 px de marge, 1 px de filet, et la
   photo à sa taille exacte (360 px). On agrandit le cadre, jamais l'image (REGLES-DEMO §4). */
.carr{position:relative;--cw:360px;--ch:258px;--marge:14px;width:min(100%,calc(var(--cw) + 2*var(--marge) + 2px))}
.carr-piste{display:grid;gap:30px}
.carr-item{display:grid;gap:14px}
.carr-fig{width:100%;padding:var(--marge);background:rgba(237,235,230,.06);border:1px solid var(--line-dark);box-shadow:0 22px 48px rgba(9,18,23,.34)}
.carr-fig img{width:100%;height:auto}
.carr-nom{font:600 clamp(16px,1.25vw,19px)/1.35 var(--head);font-stretch:87.5%;letter-spacing:-.01em;color:var(--paper);padding-left:2px}
.carr[data-carr-actif] .carr-piste{position:relative;gap:0}
.carr[data-carr-actif] .carr-item{grid-row:1;grid-column:1;opacity:0;visibility:hidden;transition:opacity .4s var(--ease)}
.carr[data-carr-actif] .carr-item.est-vu{opacity:1;visibility:visible}
.carr-barre{display:none;align-items:center;gap:14px;margin-top:22px}
.carr[data-carr-actif] .carr-barre{display:flex}
.carr-nav{width:44px;height:44px;flex:none;border-radius:999px;border:1px solid var(--line-dark);background:transparent;color:var(--paper);font:400 16px/1 var(--sans);cursor:pointer;transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.carr-nav:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.carr-points{display:flex;gap:9px;flex:1;justify-content:center}
.carr-point{width:9px;height:9px;padding:0;border-radius:999px;border:0;background:rgba(237,235,230,.28);cursor:pointer;transition:background .2s var(--ease),transform .2s var(--ease)}
.carr-point.est-vu{background:var(--red-soft);transform:scale(1.35)}
.carr-point:hover{background:var(--paper)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.f-num{display:flex;align-items:baseline;gap:10px;font:600 13px/1 var(--sans);letter-spacing:.14em;color:var(--red-soft);margin-bottom:18px;font-variant-numeric:tabular-nums}
.f-num i{font-style:normal;color:rgba(237,235,230,.4)}
.f-titre{font:600 clamp(27px,3vw,44px)/1.04 var(--head);font-stretch:87.5%;letter-spacing:-.025em;color:var(--paper);text-wrap:balance}
.f-note{margin-top:20px;max-width:52ch;font:400 var(--t-lede)/1.6 var(--sans);color:var(--paper-dim)}
/* ce que LEUR catalogue associe à ces ouvrages : la ligne occupe toute la colonne, qui restait
   nue à droite du paragraphe sur un écran de 1800 px (trou de 30 %, mesuré le 2026-09-22). */
.f-cat{margin-top:clamp(26px,3vw,40px);font:600 12px/1.3 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:rgba(237,235,230,.5)}
.f-betons{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0 var(--gutter);margin-top:14px;border-top:1px solid var(--line-dark)}
.f-betons li{display:flex;align-items:baseline;gap:10px;padding:13px 0;border-bottom:1px solid var(--line-dark);font:500 clamp(15px,1.15vw,17px)/1.35 var(--head);font-stretch:87.5%;color:var(--paper)}
.f-betons li::before{content:"";flex:none;width:6px;height:6px;background:var(--red-soft);transform:translateY(-2px)}

@media (max-width:899px){.family{grid-template-columns:1fr;gap:24px;align-items:start}
  .family:nth-child(even) .family-media{order:0}
  .family .carr{--marge:14px}
  .f-betons{grid-template-columns:1fr 1fr}
  .f-note{max-width:60ch}}

/* story + community */
.story{padding:clamp(88px,12vw,160px) 0 clamp(72px,9vw,130px)}
.story-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px var(--gutter);align-items:start}
.mission{margin-top:clamp(36px,4vw,56px);padding:26px 0 0 26px;border-left:3px solid var(--red);max-width:44ch}
.mission p{font:500 clamp(19px,1.6vw,24px)/1.4 var(--head);font-stretch:100%;letter-spacing:-.01em}
.mission cite{display:block;margin-top:14px;font:500 12px/1.5 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-style:normal}
.story-side{padding-top:clamp(0px,5vw,78px)}
.timeline{border-top:1px solid var(--ink)}
.timeline li{display:grid;grid-template-columns:84px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.tl-year{font:600 clamp(22px,2vw,30px)/1.1 var(--head);font-stretch:87.5%;color:var(--red-text);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.timeline p{font-size:15px;line-height:1.5;color:var(--muted);padding-top:4px}
/* « Dans la communauté » : leurs trois photos, une à la fois, sous la frise. C'était un collage
   de trois cadres (un album, interdit depuis le 2026-09-20) et la frise laissait sous elle un vide
   de 33 % d'écran (trous.py, 2026-09-22) : la communauté le remplit. */
.community{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,528px);gap:clamp(28px,4vw,72px);align-items:center;margin-top:clamp(64px,8vw,110px);padding-top:clamp(36px,4.5vw,56px);border-top:1px solid var(--ink)}
.community>.carr{grid-row:1/4;grid-column:2}
.community>:not(.carr){grid-column:1}
.community .eyebrow{margin-bottom:16px}
.community h3{font:600 clamp(22px,2vw,28px)/1.15 var(--head);font-stretch:87.5%;letter-spacing:-.025em;max-width:20ch}
.community-note{margin-top:14px;color:var(--muted);max-width:40ch;font-size:15.5px}
.community .carr{margin-top:clamp(22px,2.6vw,34px)}
.community .carr-fig{background:var(--paper-3);border-color:var(--line);box-shadow:0 18px 40px rgba(21,24,27,.12)}
.community .carr-fig img{aspect-ratio:4/3;object-fit:cover}
.community .carr-nom{color:var(--ink)}
.community .carr-nav{border-color:var(--line);color:var(--ink)}
.community .carr-nav:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.community .carr-point{background:var(--line)}
.community .carr-point.est-vu{background:var(--red)}
.community .carr-point:hover{background:var(--ink)}
/* sous 1 100 px, les deux colonnes de l'entreprise se vident l'une après l'autre : la frise et la
   mission tiennent à droite pendant que la gauche est déjà finie (trou de 37 % à 1066, 2026-09-22).
   Empilées, elles se suivent sans vide. */
@media (max-width:1100px){.story-grid{grid-template-columns:1fr}.story-side{padding-top:clamp(28px,4vw,44px)}}
@media (max-width:899px){.story-grid{grid-template-columns:1fr}.story-side{padding-top:0}
  .community{grid-template-columns:1fr}.community>.carr{grid-row:auto;grid-column:1}}

/* jobs */
.jobs{background:var(--paper-2);padding:clamp(72px,9vw,120px) 0;border-top:2px solid var(--red)}
.jobs-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px var(--gutter);align-items:start}
.jobs-note{margin-top:24px;color:var(--muted);max-width:38ch}
.jobs-note a{text-decoration:none;color:var(--ink);border-bottom:1px solid var(--red);transition:color .3s}
.jobs-note a:hover,.jobs-note a:focus-visible{color:var(--red-text)}
.jobs-list{border-top:1px solid var(--line);margin-top:8px}
.jobs-list a{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:20px 12px;border-bottom:1px solid var(--line);font:500 clamp(22px,2.6vw,38px)/1.1 var(--head);font-stretch:87.5%;letter-spacing:-.02em;text-decoration:none;position:relative;isolation:isolate;transition:color .4s var(--ease)}
.jobs-list a span{display:block;transition:transform .5s var(--ease-out)}
.jobs-list a::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--slate);transform:scaleY(0);transform-origin:bottom;transition:transform .5s var(--ease-out)}
.jobs-list a:hover,.jobs-list a:focus-visible{color:var(--paper)}
.jobs-list a:hover span,.jobs-list a:focus-visible span{transform:translateX(16px)}
.jobs-list a:hover::before,.jobs-list a:focus-visible::before{transform:scaleY(1)}
.jobs-list i{width:26px;height:1px;background:currentColor;position:relative;flex:none;margin-right:12px;transition:width .5s var(--ease-out)}
.jobs-list i::after{content:"";position:absolute;right:-1px;top:-4px;width:9px;height:9px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}
.jobs-list a:hover i,.jobs-list a:focus-visible i{width:48px}
@media (max-width:899px){.jobs-grid{grid-template-columns:1fr}}

/* the call */
.cta{position:relative;padding:clamp(120px,15vw,200px) 0;overflow:clip;isolation:isolate}
.cta-bg{position:absolute;inset:0;z-index:0;opacity:.55;overflow:hidden}
.cta-bg img{position:absolute;left:0;top:-8%;width:100%;height:auto}
.cta::after{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(180deg,rgba(24,44,53,.86) 0%,rgba(24,44,53,.55) 50%,rgba(24,44,53,.94) 100%)}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px var(--gutter);align-items:end}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:24px 40px;margin-top:40px}
.cta-people{border-top:1px solid var(--line-dark)}
.cta-people div{display:grid;grid-template-columns:150px 1fr;gap:6px 20px;padding:14px 0;border-bottom:1px solid var(--line-dark)}
.cta-people dt{font:600 14px/1.5 var(--sans);color:var(--paper)}
.cta-people dd{font-size:13.5px;line-height:1.5;color:var(--paper-dim);display:grid}
.cta-people a{text-decoration:none;color:var(--paper);width:fit-content;position:relative;word-break:break-all}
.cta-people a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--red-soft);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease-out)}
.cta-people a:hover::after,.cta-people a:focus-visible::after{transform:scaleX(1)}
@media (max-width:899px){.cta-inner{grid-template-columns:1fr}}
@media (max-width:599px){.cta-people div{grid-template-columns:1fr;gap:2px}}

/* footer */
.footer{background:var(--slate-2);color:var(--paper);border-top:1px solid var(--line-dark);padding:clamp(72px,8vw,100px) 0 36px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:minmax(0,5fr) repeat(3,minmax(0,2fr));gap:40px var(--gutter)}
.footer-logo{width:150px;height:auto;margin-bottom:18px}
.footer-logo-royal{width:84px;height:auto;margin-bottom:22px}
.footer-brand .small{font:500 12px/1.6 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--paper-dim);max-width:30ch}
.footer-col{display:flex;flex-direction:column;gap:10px}
.footer-col .eyebrow{color:var(--red-soft);font-size:12px;letter-spacing:.2em;margin-bottom:10px}
.footer-col a{text-decoration:none;color:rgba(237,235,230,.84);width:fit-content;position:relative;transition:color .3s}
.footer-col a:hover,.footer-col a:focus-visible{color:var(--paper)}
.footer-col a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--red-soft);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease-out)}
.footer-col a:hover::after,.footer-col a:focus-visible::after{transform:scaleX(1)}
.plain{color:rgba(237,235,230,.84);display:grid;gap:4px;margin-top:6px}
.copyright{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;margin-top:56px;padding-top:24px;border-top:1px solid var(--line-dark);font:500 12px/1.6 var(--sans);letter-spacing:.06em;color:rgba(237,235,230,.58)}
.copyright .pbm{max-width:64ch}
@media (max-width:899px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:599px){.footer-grid{grid-template-columns:1fr}}

/* ————— pages intérieures (2026-09-20) : même socle, héros court, un moment par gabarit.
   Patron : sites/voyer (pilote multi-pages), adapté aux jetons Béton Chevalier. ————— */
.nav-links a[aria-current]{opacity:1}
.nav-links a[aria-current]::after{transform:scaleX(1);transform-origin:left}
.menu nav>a[aria-current]{color:var(--red-soft)}
.footer-col a[aria-current]{color:var(--paper)}

/* héros court : ardoise, texte à gauche, photo ou coordonnées à droite */
.hero-int{position:relative;background:var(--slate);color:var(--paper);padding:clamp(112px,14vh,160px) 0 clamp(44px,6vh,72px);overflow:hidden;isolation:isolate}

/* produits : les neuf du catalogue sur la ligne qui se trace, certifications et azote en aparté */
.prod{padding-bottom:clamp(88px,12vw,160px)}
.step p a{color:var(--ink);font-weight:600;text-decoration:none;border-bottom:1px solid var(--red);transition:color .3s}
.step p a:hover,.step p a:focus-visible{color:var(--red-text)}

/* entreprise : la frise aux années larges, la mission en aparté, le collage communauté */
.histoire{padding-bottom:clamp(72px,9vw,120px)}

/* réalisations : le mur sombre par famille, puis les familles claires */
.works-int{padding:clamp(96px,12vw,170px) 0 clamp(88px,11vw,150px)}

/* emplois : la liste des postes, la carte de candidature, les régions sur ardoise */
.postes{padding-bottom:clamp(88px,12vw,160px)}

/* contact : la carte tous points allumés, les sept fiches, la direction */
.usines-int{padding-bottom:clamp(88px,12vw,160px)}

/* appel final des pages intérieures : ardoise pleine, deux colonnes, pas de fond photo */
.cta-int{background:var(--slate-2);padding:clamp(88px,11vw,150px) 0;border-top:2px solid var(--red)}

/* reduced motion */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .scroll-cue i::after{animation:none;transform:none}
}