/* ==========================================================================
   BC BETON — design system "béton brut"
   Slab type, poured-concrete textures, delivery-docket details, green ink.
   Zero external dependency: fonts are self-hosted (assets/fonts/fonts.css).
   ========================================================================== */
:root{
  --green:#60b06c;
  --green-dark:#4e9459;
  --ink:#2b2b28;
  --ink-soft:#4a4a44;
  --grey:#6f6f68;
  --paper:#f0efeb;
  --paper-2:#e7e6e0;
  --line:#d9d8d2;
  --white:#fbfaf7;
  --shadow:4px 4px 0 var(--green);
  --pad:clamp(20px,5vw,56px);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
/* anchored sections land below the sticky header */
section[id]{scroll-margin-top:100px}
body{
  font-family:"Roboto",sans-serif;font-size:17px;line-height:1.65;
  color:var(--ink);background:var(--paper);overflow-x:hidden;
}
/* concrete grain + faint pour lines, everywhere */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;opacity:.5;z-index:0;
  background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="180" height="180"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency=".9" numOctaves="2"/><feColorMatrix values="0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .05 0"/></filter><rect width="180" height="180" filter="url(%23n)"/></svg>');
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
::selection{background:var(--green);color:var(--white)}

h1,h2,h3,.slab{font-family:"Roboto Slab",serif;font-weight:700;line-height:1.02;text-transform:uppercase;letter-spacing:-.01em}

/* --------------------------------------------------------------- header */
.bc-header{
  position:sticky;top:0;z-index:90;background:var(--paper);
  border-bottom:2px solid var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:14px var(--pad);
}
.bc-header .logo img{height:60px;width:auto}
@media (max-width:920px){.bc-header .logo img{height:48px}}
.bc-nav{display:flex;align-items:center;gap:clamp(14px,2.4vw,34px)}
.bc-nav a{
  font-family:"Roboto Slab",serif;font-size:14px;letter-spacing:.14em;
  text-transform:uppercase;text-decoration:none;padding:6px 2px;position:relative;
}
.bc-nav a:not(.tel)::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:3px;
  background:var(--green);transition:right .22s ease;
}
.bc-nav a:not(.tel):hover::after,.bc-nav a[aria-current]::after,.bc-nav a.is-active::after{right:0}
.bc-nav a.tel{
  background:var(--green);color:var(--white);padding:12px 22px;box-shadow:4px 4px 0 var(--ink);
  transition:transform .18s,box-shadow .18s;white-space:nowrap;
}
.bc-nav a.tel:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink)}
.bc-burger{
  display:none;background:none;border:2px solid var(--ink);width:46px;height:42px;
  cursor:pointer;position:relative;
}
.bc-burger span,.bc-burger::before,.bc-burger::after{
  content:"";position:absolute;left:9px;right:9px;height:3px;background:var(--ink);
  transition:transform .2s,opacity .2s;
}
.bc-burger::before{top:11px}.bc-burger span{top:19px}.bc-burger::after{top:27px}
.bc-burger.open::before{transform:translateY(8px) rotate(45deg)}
.bc-burger.open span{opacity:0}
.bc-burger.open::after{transform:translateY(-8px) rotate(-45deg)}
.bc-menu-mobile{
  display:none;border-bottom:2px solid var(--ink);background:var(--paper);
  position:sticky;top:78px;z-index:89;
}
.bc-menu-mobile a{
  display:block;padding:16px var(--pad);text-decoration:none;
  font-family:"Roboto Slab",serif;letter-spacing:.14em;text-transform:uppercase;
  border-top:1px solid var(--line);
}
.bc-menu-mobile a:hover{background:var(--paper-2)}
@media (max-width:920px){
  .bc-nav{display:none}
  .bc-burger{display:block}
}

/* ----------------------------------------------------------------- hero */
.hero{position:relative;border-bottom:2px solid var(--ink);overflow:hidden}
/* z-index:0 isolates the pseudo layers below .inner (z-index:1) */
.hero .bg{position:absolute;inset:0;z-index:0}
/* photographic treatment: desaturate + grain to bury the AI-render look */
.hero .bg img{width:100%;height:100%;object-fit:cover;filter:saturate(.62) contrast(1.08) brightness(.92)}
.hero .bg::before{
  content:"";position:absolute;inset:0;z-index:1;opacity:.5;mix-blend-mode:overlay;
  background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="140" height="140"><filter id="g"><feTurbulence type="fractalNoise" baseFrequency=".85" numOctaves="2"/><feColorMatrix values="0 0 0 0 .5  0 0 0 0 .5  0 0 0 0 .5  0 0 0 .5 0"/></filter><rect width="140" height="140" filter="url(%23g)"/></svg>');
}
.hero .bg::after{
  content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(100deg,rgba(43,43,40,.84) 0%,rgba(43,43,40,.58) 46%,rgba(43,43,40,.22) 100%);
}
/* variant "paper": typographic hero on the real raw-concrete texture (no AI image) */
.hero.paper .bg img{opacity:.5;filter:saturate(.45) contrast(1.04)}
.hero.paper .bg::after{
  background:linear-gradient(100deg,rgba(240,239,235,.88) 0%,rgba(240,239,235,.55) 55%,rgba(240,239,235,.2) 100%);
}
.hero.paper .inner{color:var(--ink)}
.hero.paper h1{color:var(--ink)}
.hero.paper .eyebrow{color:var(--green-dark)}
.hero.paper p.lead{color:var(--ink-soft)}
.hero.paper .btn.ghost{color:var(--ink);outline-color:var(--ink)}
.hero.paper .btn.ghost:hover{background:var(--ink);color:var(--paper)}
.hero .inner{
  position:relative;z-index:1;max-width:1180px;margin:0 auto;
  padding:clamp(72px,14vh,150px) var(--pad);color:var(--white);
}
.hero h1{font-size:clamp(40px,7vw,86px);max-width:14ch;color:var(--white)}
.hero .eyebrow{color:#cfe9d3}
.hero p.lead{margin-top:22px;max-width:44ch;font-size:19px;color:#e8e7e1}
.hero .actions{margin-top:36px;display:flex;flex-wrap:wrap;gap:14px}

/* ------------------------------------------------------------- utilities */
.wrap{max-width:1180px;margin:0 auto;padding:0 var(--pad);position:relative;z-index:1}
.section{padding:clamp(56px,10vh,110px) 0;position:relative}
.section.alt{background:var(--paper-2);border-top:2px solid var(--ink);border-bottom:2px solid var(--ink)}
.eyebrow{
  font-family:"Roboto Slab",serif;font-size:13px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--green-dark);
  display:flex;align-items:center;gap:14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:44px;height:2px;background:var(--green);flex:none}
h2.title{font-size:clamp(30px,4.6vw,54px);max-width:20ch}
.num{
  font-family:"Roboto Slab",serif;font-weight:700;color:transparent;
  -webkit-text-stroke:2px var(--line);font-size:clamp(80px,12vw,150px);line-height:1;
  position:absolute;right:var(--pad);top:18px;z-index:0;user-select:none;
}
.btn{
  display:inline-block;font-family:"Roboto Slab",serif;font-size:14px;
  letter-spacing:.14em;text-transform:uppercase;text-decoration:none;
  padding:16px 30px;background:var(--ink);color:var(--paper);
  box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s;border:0;cursor:pointer;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--green)}
.btn:active{transform:translate(1px,1px);box-shadow:2px 2px 0 var(--green)}
.btn.green{background:var(--green);color:var(--white);box-shadow:4px 4px 0 var(--ink)}
.btn.green:hover{box-shadow:7px 7px 0 var(--ink)}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:none;outline:2px solid var(--ink);outline-offset:-2px}
.btn.ghost:hover{background:var(--ink);color:var(--paper);transform:none}
.hero .btn.ghost{color:var(--white);outline-color:var(--white)}
.hero .btn.ghost:hover{background:var(--white);color:var(--ink)}

/* framed photo with offset green slab */
.ph{position:relative}
.ph img{position:relative;z-index:1;border:2px solid var(--ink);width:100%;object-fit:cover;
        filter:saturate(.7) contrast(1.06)}
.ph::after{content:"";position:absolute;inset:14px -14px -14px 14px;background:var(--green);z-index:0}
.ph.flip::after{inset:14px 14px -14px -14px}
/* grain veil over framed photos (masks AI-rendered smoothness) */
.ph::before{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.45;mix-blend-mode:overlay;
  background-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="140" height="140"><filter id="g"><feTurbulence type="fractalNoise" baseFrequency=".85" numOctaves="2"/><feColorMatrix values="0 0 0 0 .5  0 0 0 0 .5  0 0 0 0 .5  0 0 0 .5 0"/></filter><rect width="140" height="140" filter="url(%23g)"/></svg>');
}

/* the hand-drawn green underline (site brand mark) */
.hl{position:relative;display:inline-block;white-space:nowrap}
.hl svg{position:absolute;left:-2%;bottom:-.16em;width:104%;height:.4em;overflow:visible}
.hl svg path{
  fill:none;stroke:var(--green);stroke-width:9;stroke-linecap:round;
  stroke-dasharray:1500;stroke-dashoffset:1500;
}
.hl.draw svg path{animation:draw 1.1s ease-out .25s forwards}

/* material sample cards (produits) */
.samples{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:26px;margin-top:44px}
.sample{position:relative;background:var(--white);border:2px solid var(--ink);box-shadow:6px 6px 0 var(--line);transition:transform .2s,box-shadow .2s}
.sample:hover{transform:translate(-3px,-3px);box-shadow:9px 9px 0 var(--green)}
.sample img{height:210px;width:100%;object-fit:cover;border-bottom:2px solid var(--ink)}
.sample .tag{
  position:absolute;top:14px;left:-8px;background:var(--green);color:var(--white);
  font-family:"Roboto Slab",serif;font-size:15px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;padding:9px 18px;box-shadow:3px 3px 0 var(--ink);
}
.sample .body{padding:20px 22px 24px}
.sample h3{font-size:19px;letter-spacing:.02em}
.sample ul{list-style:none;margin-top:12px;font-size:14px;color:var(--grey);line-height:1.9}
.sample ul li::before{content:"— ";color:var(--green-dark)}
.sample p{margin-top:10px;font-size:15px;color:var(--grey)}

/* alternating feature rows */
.row{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(28px,5vw,64px);align-items:center;margin-top:56px}
.row.rev{grid-template-columns:minmax(0,6fr) minmax(0,5fr)}
.row .txt h3{font-size:clamp(24px,3.2vw,36px);margin-bottom:14px}
.row .txt p{color:var(--ink-soft);margin-bottom:12px}
.row .txt p.note{color:var(--green-dark);font-weight:500}
.row .txt .mini{font-size:15px;color:var(--grey)}
@media (max-width:820px){.row,.row.rev{grid-template-columns:1fr}.num{display:none}}

/* stamp (docket) */
.stamp{
  display:inline-block;transform:rotate(-6deg);border:3px solid var(--green);border-radius:6px;
  padding:10px 18px 8px;color:var(--green);text-align:center;
  box-shadow:inset 0 0 0 2px var(--paper),inset 0 0 0 4px var(--green);
  mix-blend-mode:multiply;pointer-events:none;
  font-family:"Roboto Slab",serif;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
}

/* partners strip — centered label above, logos on one centered line */
.partners{border-top:2px solid var(--ink);background:var(--white)}
.partners .wrap{padding-top:44px;padding-bottom:44px;text-align:center}
.partners .lbl{
  display:inline-flex;align-items:center;gap:14px;margin-bottom:32px;
  font-family:"Roboto Slab",serif;font-size:13px;letter-spacing:.26em;
  text-transform:uppercase;color:var(--grey);
}
.partners .lbl::before,.partners .lbl::after{content:"";width:38px;height:2px;background:var(--green)}
.partners .logos{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;
  gap:clamp(20px,3.2vw,48px);
}
.partners .logos a{display:block;filter:grayscale(1);opacity:.6;transition:filter .2s,opacity .2s}
.partners .logos a:hover{filter:none;opacity:1}
.partners img{height:32px;width:auto}

/* forms (docket style) */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 22px;margin-top:36px}
.form-grid .full{grid-column:1/-1}
@media (max-width:680px){.form-grid{grid-template-columns:1fr}}
.field label{
  display:block;font-family:"Roboto Slab",serif;font-size:12px;
  letter-spacing:.2em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px;
}
.field label em{color:var(--green-dark);font-style:normal}
.field input,.field textarea{
  width:100%;border:2px solid var(--ink);background:var(--white);
  font:inherit;font-size:16px;padding:13px 14px;color:var(--ink);border-radius:0;
  transition:box-shadow .15s;-webkit-appearance:none;
}
.field input:focus,.field textarea:focus{outline:none;box-shadow:4px 4px 0 var(--green)}
.field textarea{min-height:150px;resize:vertical}
.bc-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}

/* footer */
.bc-footer{background:var(--ink);color:#c9c8c0;border-top:6px solid var(--green);position:relative;z-index:1}
.bc-footer .grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px;
  padding:56px 0 44px;
}
@media (max-width:900px){.bc-footer .grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.bc-footer .grid{grid-template-columns:1fr}}
.bc-footer img.flogo{height:40px;width:auto;margin-bottom:16px}
.bc-footer h4{
  font-family:"Roboto Slab",serif;font-size:14px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--white);margin-bottom:16px;
}
.bc-footer h4::after{content:"";display:block;width:34px;height:2px;background:var(--green);margin-top:8px}
.bc-footer p,.bc-footer li{font-size:15px;line-height:1.9;list-style:none}
.bc-footer a{color:#e8e7e1;text-decoration:none;border-bottom:1px solid transparent}
.bc-footer a:hover{border-color:var(--green);color:var(--white)}
.bc-footer .soc{display:flex;gap:12px;margin-top:18px}
.bc-footer .soc a{
  width:40px;height:40px;border:2px solid #55554e;display:flex;align-items:center;justify-content:center;
  transition:border-color .2s,background .2s;
}
.bc-footer .soc a:hover{border-color:var(--green);background:rgba(96,176,108,.12)}
.bc-footer .soc svg{width:17px;height:17px;fill:#e8e7e1}
.bc-footer .legal{
  border-top:1px solid #454540;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;padding:18px 0;font-size:12.5px;
  letter-spacing:.16em;text-transform:uppercase;color:#8d8c84;
}

/* reveal animations */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
html.no-js .rv{opacity:1;transform:none}
html.no-js .hl svg path{stroke-dashoffset:0}
@keyframes draw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .hl svg path,.hl.draw svg path{animation:none;stroke-dashoffset:0}
}