/* ==========================================================================
   Hutt'Ô Paille — Lucile Wenger
   Isolation biosourcée & enduits naturels — Puy-de-Dôme
   Direction artistique : "Atelier moderne"
   ========================================================================== */

:root{
  --anthracite:#141517;
  --anthracite-2:#1d1f22;
  --line-dark:rgba(255,255,255,.13);
  --paper:#f3f0e9;
  --paper-2:#e9e4d8;
  --white:#fdfcfa;
  --ink:#141517;
  --ink-2:#54565c;
  --gold:#b8862b;
  --gold-2:#e2be6e;
  --gold-dim:rgba(184,134,43,.14);
  --line:rgba(20,21,23,.13);
  --r:2px;
  --maxw:1280px;
  --pad:clamp(1.25rem,4vw,3.5rem);
  --ff-h:"Bricolage Grotesque","Archivo","Helvetica Neue",Arial,sans-serif;
  --ff-b:"Archivo","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.16,.8,.24,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}
body{margin:0;font-family:var(--ff-b);color:var(--ink);background:var(--white);font-size:16px;line-height:1.62;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{font-family:var(--ff-h);margin:0;font-weight:600;letter-spacing:-.015em;line-height:1.14}
p{margin:0 0 1em}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
.wrap-narrow{max-width:820px;margin:0 auto;padding:0 var(--pad)}

.eyebrow{display:flex;align-items:center;gap:.65em;font-family:var(--ff-h);font-size:.76rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin:0 0 1.1em;font-weight:600}
.eyebrow::before{content:"";width:26px;height:2px;background:currentColor;flex:none}
.on-dark .eyebrow,.section-dark .eyebrow,.hero .eyebrow,.page-hero .eyebrow,.cta-band .eyebrow{color:var(--gold-2)}

/* ---------- Skip link ---------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--gold);color:var(--anthracite);padding:.8em 1.2em;z-index:200;font-weight:600}
.skip:focus{left:0}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(253,252,250,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:80px;gap:1rem}
.brand{display:flex;align-items:center;gap:.7em;font-family:var(--ff-h);font-weight:700;font-size:1.02rem;letter-spacing:-.01em;flex:none}
.brand .mark{width:40px;height:40px;border-radius:50%;background:var(--anthracite);display:flex;align-items:center;justify-content:center;color:var(--gold-2);font-family:var(--ff-h);font-weight:700;font-size:.82rem;flex:none;letter-spacing:.02em}
.brand small{display:block;font-family:var(--ff-b);font-weight:500;font-size:.66rem;letter-spacing:.09em;color:var(--ink-2);text-transform:uppercase;margin-top:2px}
.main-nav ul{display:flex;gap:1.9rem;align-items:center}
.main-nav a{font-size:.9rem;font-weight:500;position:relative;padding:.3em 0;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-1px;height:2px;background:var(--gold);transition:right .28s var(--ease)}
.main-nav a:hover::after,.main-nav a.active::after{right:0}
.main-nav a.active{color:var(--gold)}
.main-nav a.nav-cta{background:var(--anthracite);color:var(--white);padding:.72em 1.35em;border-radius:var(--r);font-weight:600;transition:background .2s var(--ease),color .2s var(--ease)}
.main-nav a.nav-cta::after{display:none}
.main-nav a.nav-cta:hover{background:var(--gold);color:#fff}
.nav-toggle{display:none;background:none;border:none;padding:.5em}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:transform .25s var(--ease),opacity .2s var(--ease)}

@media (max-width:1040px){.main-nav ul{gap:1.3rem}.main-nav a{font-size:.85rem}}
@media (max-width:920px){
  /* backdrop-filter créerait un bloc conteneur pour le menu en position:fixed
     et l'écraserait à 0 px de haut : on l'enlève sur mobile. */
  .site-header{backdrop-filter:none;background:var(--white)}
  .nav-toggle{display:block}
  .main-nav{position:fixed;inset:80px 0 0 0;background:var(--white);transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .25s var(--ease),transform .25s var(--ease);border-top:1px solid var(--line);overflow-y:auto}
  .main-nav.open{opacity:1;pointer-events:auto;transform:none}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;padding:.5rem var(--pad) 2.5rem}
  .main-nav li{border-bottom:1px solid var(--line)}
  .main-nav a{display:block;padding:1.05em 0;font-size:1rem}
  .main-nav a::after{display:none}
  .main-nav a.nav-cta{display:block;text-align:center;margin-top:1.4rem;padding:1em}
  body.nav-open{overflow:hidden}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.55em;padding:.95em 1.7em;border-radius:var(--r);font-weight:600;font-size:.94rem;font-family:var(--ff-h);transition:all .22s var(--ease);border:1px solid transparent;text-align:center}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:var(--gold-2);color:var(--anthracite);transform:translateY(-2px)}
.btn-line{border-color:rgba(253,252,250,.32);color:var(--white)}
.btn-line:hover{border-color:var(--gold-2);color:var(--gold-2)}
.btn-line-dark{border-color:var(--line);color:var(--ink)}
.btn-line-dark:hover{border-color:var(--gold);color:var(--gold)}
.btn-dark{background:var(--anthracite);color:var(--white)}
.btn-dark:hover{background:var(--gold);color:#fff}
.actions{display:flex;gap:.9rem;flex-wrap:wrap}

/* ---------- Manifesto hero (accueil) ---------- */
.hero{background:var(--anthracite);color:var(--white);position:relative;overflow:hidden;padding:clamp(3.2rem,7vw,5rem) 0 clamp(2.5rem,5vw,3.5rem)}
.hero::before{content:"";position:absolute;top:-25%;right:-12%;width:65vw;height:65vw;max-width:820px;max-height:820px;background:radial-gradient(circle,var(--gold-dim) 0%,transparent 68%);pointer-events:none}
.hero .wrap{position:relative}
.hero h1{font-size:clamp(1.75rem,3.4vw,2.85rem);font-weight:600;max-width:24ch;line-height:1.12}
.hero h1 em{font-style:normal;color:var(--gold-2)}
.hero-lede{color:rgba(253,252,250,.74);font-size:clamp(1rem,1.5vw,1.12rem);max-width:58ch;margin:1.4rem 0 2rem}
.hero-sign{display:flex;align-items:center;gap:.9rem;margin-top:3.2rem;padding-top:1.6rem;border-top:1px solid var(--line-dark);font-size:.86rem;color:rgba(253,252,250,.55);flex-wrap:wrap}
.hero-sign strong{color:var(--gold-2);font-family:var(--ff-h);font-weight:600}

/* ---------- Three doors ---------- */
.doors{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.door{background:var(--white);padding:2.6rem 2rem 2.4rem;display:flex;flex-direction:column;position:relative;transition:background .25s var(--ease);min-height:290px}
.door:hover{background:var(--paper)}
.door .num{font-family:var(--ff-h);font-size:.75rem;letter-spacing:.16em;color:var(--gold);font-weight:600;margin-bottom:1.4em}
.door h3{font-size:clamp(1.35rem,2.2vw,1.65rem);margin-bottom:.6em}
.door p{color:var(--ink-2);font-size:.94rem;flex:1}
.door .go{margin-top:1.4em;font-family:var(--ff-h);font-weight:600;font-size:.88rem;color:var(--gold);display:inline-flex;align-items:center;gap:.45em}
.door .go svg{transition:transform .25s var(--ease)}
.door:hover .go svg{transform:translateX(5px)}
@media (max-width:860px){.doors{grid-template-columns:1fr}.door{min-height:0}}

/* ---------- Sections ---------- */
section{padding:clamp(3.5rem,8vw,6.5rem) 0}
.section-tight{padding:clamp(2.5rem,5vw,4rem) 0}
.section-paper{background:var(--paper)}
.section-dark{background:var(--anthracite);color:var(--white)}
.section-dark h2,.section-dark h3,.section-dark h4{color:var(--white)}
.section-dark p{color:rgba(253,252,250,.72)}

.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:2.5rem;margin-bottom:2.8rem;flex-wrap:wrap}
.section-head h2{font-size:clamp(1.7rem,3.6vw,2.7rem);max-width:20ch}
.section-head .lede{max-width:36ch;color:var(--ink-2);margin:0}
.section-dark .section-head .lede{color:rgba(253,252,250,.68)}

/* ---------- Pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.section-dark .pillars{background:var(--line-dark);border-color:var(--line-dark)}
.pillar{background:var(--white);padding:2.2rem 1.9rem}
.section-dark .pillar{background:var(--anthracite)}
.pillar .num{font-family:var(--ff-h);color:var(--gold);font-size:.8rem;letter-spacing:.14em;font-weight:600}
.section-dark .pillar .num{color:var(--gold-2)}
.pillar h3{font-size:1.18rem;margin:.9em 0 .5em}
.pillar p{color:var(--ink-2);font-size:.93rem;margin:0}
@media (max-width:820px){.pillars{grid-template-columns:1fr}}

/* ---------- Split (image + texte) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.split .media img{display:block}
.split.narrow-img{grid-template-columns:.82fr 1.18fr}
.split .media{overflow:hidden}
.split .media img{width:100%;height:auto}

.split h2{font-size:clamp(1.6rem,3.2vw,2.4rem);margin-bottom:.7em}
.split p{color:var(--ink-2)}
.section-dark .split p{color:rgba(253,252,250,.72)}
@media (max-width:840px){.split,.split.narrow-img{grid-template-columns:1fr}}

/* ---------- Numbers ---------- */
.numbers{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
.numbers .n{padding:2.1rem 1.1rem;text-align:center;border-right:1px solid var(--line-dark)}
.numbers .n:last-child{border-right:none}
.numbers .n strong{display:block;font-family:var(--ff-h);font-size:clamp(1.7rem,3.2vw,2.5rem);color:var(--gold-2);margin-bottom:.25em}
.numbers .n span{font-size:.79rem;color:rgba(253,252,250,.62);line-height:1.45;display:block}
@media (max-width:760px){.numbers{grid-template-columns:repeat(2,1fr)}.numbers .n:nth-child(2){border-right:none}.numbers .n:nth-child(-n+2){border-bottom:1px solid var(--line-dark)}}

/* ---------- Material cards ---------- */
.card-list{display:grid;grid-template-columns:repeat(2,1fr);gap:1.3rem}
.card-list.three{grid-template-columns:repeat(3,1fr)}
.mat-card{border:1px solid var(--line);background:var(--white);padding:2rem 1.9rem;display:flex;flex-direction:column}
.section-paper .mat-card{background:var(--white)}
.mat-card .top{display:flex;justify-content:space-between;align-items:flex-start;gap:.9rem;margin-bottom:.9em;flex-wrap:wrap}
.mat-card h3{font-size:1.2rem}
.mat-card .badge{font-family:var(--ff-h);font-size:.68rem;letter-spacing:.09em;text-transform:uppercase;color:var(--gold);background:var(--gold-dim);padding:.4em .7em;font-weight:600;white-space:normal;max-width:100%}
.mat-card p{color:var(--ink-2);font-size:.93rem;flex:1}
.mat-card .specs{display:flex;gap:1.6rem;margin-top:1.2rem;padding-top:1.1rem;border-top:1px dashed var(--line)}
.mat-card .specs div strong{display:block;font-family:var(--ff-h);color:var(--anthracite);font-size:1.02rem}
.mat-card .specs div span{font-size:.72rem;color:var(--ink-2);text-transform:uppercase;letter-spacing:.05em}
@media (max-width:900px){.card-list.three{grid-template-columns:1fr 1fr}}
@media (max-width:700px){.card-list,.card-list.three{grid-template-columns:1fr}}

/* ---------- Steps ---------- */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:1.6rem}
.steps.three{grid-template-columns:repeat(3,1fr)}
.step{position:relative}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);font-family:var(--ff-h);font-size:1.9rem;color:var(--gold);display:block;margin-bottom:.35em;font-weight:600}
.section-dark .step::before{color:var(--gold-2)}
.step h4{font-size:1.02rem;margin-bottom:.45em}
.step p{font-size:.9rem;color:var(--ink-2);margin:0}
.section-dark .step p{color:rgba(253,252,250,.68)}
@media (max-width:860px){.steps,.steps.three{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.steps,.steps.three{grid-template-columns:1fr}}

/* ---------- Gallery (chantiers) ---------- */
.filters{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:2rem}
.filters button{background:none;border:1px solid var(--line);padding:.6em 1.15em;font-family:var(--ff-h);font-size:.85rem;font-weight:500;border-radius:var(--r);transition:all .2s var(--ease);color:var(--ink-2)}
.filters button:hover{border-color:var(--gold);color:var(--gold)}
.filters button.active{background:var(--anthracite);border-color:var(--anthracite);color:var(--white)}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;align-items:start}
.gallery figure{margin:0;position:relative;overflow:hidden;background:var(--paper-2)}
.gallery figure img{width:100%;height:auto;transition:transform .55s var(--ease)}

.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{position:absolute;inset:auto 0 0 0;padding:1.6rem 1.2rem .95rem;background:linear-gradient(transparent,rgba(20,21,23,.9));color:#fff;font-size:.83rem;line-height:1.4}
.gallery figcaption strong{display:block;font-family:var(--ff-h);font-weight:600;font-size:.94rem;margin-bottom:.15em}
.gallery figcaption span{color:rgba(255,255,255,.68);font-size:.76rem}
.gallery figure[hidden]{display:none}
@media (max-width:880px){.gallery{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.gallery{grid-template-columns:1fr}}

/* ---------- Quote band ---------- */
.quote-band{text-align:center}
.quote-band blockquote{font-family:var(--ff-h);font-size:clamp(1.35rem,3.2vw,2.15rem);max-width:24ch;margin:0 auto 1.3rem;line-height:1.28;font-weight:500}
.quote-band blockquote span{color:var(--gold)}
.section-dark .quote-band blockquote span{color:var(--gold-2)}
.quote-band cite{font-style:normal;color:var(--ink-2);font-size:.88rem}
.section-dark .quote-band cite{color:rgba(253,252,250,.6)}

/* ---------- Badges ---------- */
.badges{display:flex;align-items:center;gap:2.6rem;flex-wrap:wrap;justify-content:center}
.badges img{height:56px;width:auto;filter:grayscale(1);opacity:.72;transition:all .22s var(--ease)}
.badges img:hover{filter:none;opacity:1}

/* ---------- Callout ---------- */
.callout{border-left:3px solid var(--gold);background:var(--paper);padding:1.5rem 1.8rem;margin:2rem 0}
.callout p:last-child{margin-bottom:0}
.callout strong{font-family:var(--ff-h)}
.section-dark .callout{background:var(--anthracite-2);border-left-color:var(--gold-2)}

/* ---------- Check list ---------- */
.checks{display:grid;gap:.85rem;margin:1.6rem 0}
.checks li{display:flex;gap:.8rem;align-items:flex-start;font-size:.96rem;color:var(--ink-2)}
.section-dark .checks li{color:rgba(253,252,250,.75)}
.checks li::before{content:"";flex:none;width:7px;height:7px;background:var(--gold);margin-top:.62em;transform:rotate(45deg)}
.section-dark .checks li::before{background:var(--gold-2)}
.checks-detail strong{display:block;margin-bottom:.25em;color:var(--ink);font-family:var(--ff-h);font-weight:600}
.section-dark .checks-detail strong{color:var(--white)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--anthracite);color:var(--white);text-align:center}
.cta-band .eyebrow{justify-content:center}
.cta-band h2{font-size:clamp(1.75rem,4vw,2.9rem);max-width:22ch;margin:0 auto 1.1rem}
.cta-band p{color:rgba(253,252,250,.7);max-width:50ch;margin:0 auto 2.1rem}
.cta-band .actions{justify-content:center}

/* ---------- Page hero ---------- */
.page-hero{background:var(--anthracite);color:var(--white);padding:clamp(3rem,7vw,5.2rem) 0 clamp(2.4rem,5vw,3.4rem);position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;top:-40%;right:-8%;width:52vw;height:52vw;max-width:620px;max-height:620px;background:radial-gradient(circle,var(--gold-dim) 0%,transparent 70%);pointer-events:none}
.page-hero .wrap{position:relative}
.crumbs{font-size:.8rem;color:rgba(253,252,250,.5);margin-bottom:1.3rem}
.crumbs a:hover{color:var(--gold-2)}
.page-hero h1{font-size:clamp(2rem,4.8vw,3.5rem);max-width:20ch}
.page-hero .lede{color:rgba(253,252,250,.72);max-width:56ch;margin-top:1.3rem;font-size:1.05rem}

/* ---------- Prose ---------- */
.prose h2{font-size:clamp(1.5rem,2.8vw,2rem);margin:2.4em 0 .7em}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.18rem;margin:1.8em 0 .5em}
.prose p{color:var(--ink-2)}
.prose ul{margin:1em 0}
.prose li{margin-bottom:.6em;color:var(--ink-2);padding-left:1.3em;position:relative}
.prose li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;background:var(--gold);transform:rotate(45deg)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem)}
.field{margin-bottom:1.25rem}
.field label{display:block;font-family:var(--ff-h);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:.5em;color:var(--ink-2);font-weight:600}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);background:var(--white);padding:.85em 1em;font-family:var(--ff-b);font-size:1rem;border-radius:var(--r);transition:border-color .2s var(--ease);color:var(--ink)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--gold)}
.field textarea{resize:vertical;min-height:140px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
@media (max-width:560px){.field-row{grid-template-columns:1fr}}
.contact-info dt{font-family:var(--ff-h);font-size:.76rem;text-transform:uppercase;letter-spacing:.09em;color:var(--gold);margin-top:1.6em;font-weight:600}
.contact-info dt:first-child{margin-top:0}
.contact-info dd{margin:.35em 0 0;font-size:1.04rem}
.contact-info dd a:hover{color:var(--gold)}
.form-note{font-size:.8rem;color:var(--ink-2);margin-top:.9rem}
@media (max-width:880px){.contact-grid{grid-template-columns:1fr}}

/* ---------- Footer ---------- */
footer{background:var(--anthracite);color:rgba(253,252,250,.8)}
.footer-top{padding:4rem 0 3rem;display:grid;grid-template-columns:1.4fr .8fr .8fr .9fr;gap:2.5rem;border-bottom:1px solid var(--line-dark)}
.footer-brand .brand{color:var(--white);margin-bottom:1.1em}
.footer-brand .brand small{color:rgba(253,252,250,.5)}
.footer-brand p{color:rgba(253,252,250,.58);font-size:.9rem;max-width:36ch}
.footer-col h4{font-family:var(--ff-h);font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-2);margin-bottom:1.2em;font-weight:600}
.footer-col li{margin-bottom:.7em;font-size:.9rem;color:rgba(253,252,250,.72)}
.footer-col a:hover{color:var(--gold-2)}
.footer-social{display:flex;gap:.7rem;margin-top:1.3rem}
.footer-social a{width:38px;height:38px;border:1px solid var(--line-dark);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s var(--ease)}
.footer-social a:hover{border-color:var(--gold-2);color:var(--gold-2)}
.footer-social svg{width:17px;height:17px}
.footer-bottom{padding:1.5rem 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.7rem;font-size:.79rem;color:rgba(253,252,250,.48)}
.footer-bottom a:hover{color:var(--gold-2)}
@media (max-width:920px){.footer-top{grid-template-columns:1fr 1fr}}
@media (max-width:580px){.footer-top{grid-template-columns:1fr;gap:2rem}}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Utils ---------- */
.center{text-align:center}
.mt-2{margin-top:2rem}
.mt-3{margin-top:3rem}
.draft-flag{background:var(--gold-dim);border:1px dashed var(--gold);padding:.9rem 1.2rem;font-size:.83rem;color:var(--ink-2);margin-bottom:2rem}

/* ---------- Hero grid (accueil avec image) ---------- */
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.hero-grid .hero-media{position:relative}
.hero-grid .hero-media img{width:100%;height:auto}
.hero-grid .hero-media figcaption{position:absolute;left:0;bottom:0;background:var(--anthracite);color:rgba(253,252,250,.66);font-size:.74rem;padding:.7em 1em;max-width:82%;line-height:1.4}
@media (max-width:940px){.hero-grid{grid-template-columns:1fr}.hero-grid .hero-media{display:none}}

/* ---------- Nav dropdown ---------- */
.has-sub{position:relative}
.sub-toggle{background:none;border:none;padding:.3em 0;font-size:.9rem;font-weight:500;font-family:var(--ff-b);color:inherit;display:inline-flex;align-items:center;gap:.35em;position:relative}
.sub-toggle::after{content:"";position:absolute;left:0;right:100%;bottom:-1px;height:2px;background:var(--gold);transition:right .28s var(--ease)}
.has-sub:hover .sub-toggle::after,.sub-toggle[aria-expanded="true"]::after,.sub-toggle.active::after{right:0}
.sub-toggle.active{color:var(--gold)}
.sub-toggle svg{transition:transform .22s var(--ease)}
.has-sub:hover .sub-toggle svg,.sub-toggle[aria-expanded="true"] svg{transform:rotate(180deg)}
.main-nav .submenu{display:block;position:absolute;top:calc(100% + 14px);left:-1.1rem;background:var(--white);border:1px solid var(--line);min-width:255px;padding:.5rem 0;opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .22s var(--ease);box-shadow:0 14px 40px rgba(20,21,23,.1)}
.main-nav .has-sub:hover .submenu,.main-nav .submenu.open{opacity:1;visibility:visible;transform:none}
.submenu li{border:none!important}
.submenu a{display:block;padding:.7em 1.1em;font-size:.88rem}
.submenu a::after{display:none}
.submenu a:hover{background:var(--paper);color:var(--gold)}
@media (max-width:920px){
  .sub-toggle{display:flex;width:100%;justify-content:space-between;padding:1.05em 0;font-size:1rem}
  .sub-toggle::after{display:none}
  .main-nav .submenu{position:static;opacity:1;visibility:visible;transform:none;border:none;box-shadow:none;display:none;padding:0 0 .8rem;min-width:0;background:var(--paper)}
  .main-nav .submenu.open{display:block}
  .submenu a{padding:.75em 1.1em}
  .has-sub:hover .submenu{opacity:1;visibility:visible}
  .has-sub:hover .submenu:not(.open){display:none}
}

/* ---------- Two-col compare (je fais / je ne fais pas) ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:1.3rem}
.compare > div{padding:2rem 1.9rem;border:1px solid var(--line)}
.compare .yes{border-left:3px solid var(--gold);background:var(--white)}
.compare .no{background:transparent}
.compare h3{font-size:1.15rem;margin-bottom:1em}
.compare li{display:flex;gap:.75rem;align-items:flex-start;font-size:.94rem;color:var(--ink-2);margin-bottom:.75em}
.compare .yes li::before{content:"";flex:none;width:7px;height:7px;background:var(--gold);margin-top:.6em;transform:rotate(45deg)}
.compare .no li::before{content:"";flex:none;width:9px;height:1px;background:var(--ink-2);margin-top:.85em;opacity:.6}
@media (max-width:760px){.compare{grid-template-columns:1fr}}

/* ---------- Note ---------- */
.note{font-size:.8rem;color:var(--ink-2);opacity:.85}
.section-dark .note{color:rgba(253,252,250,.45)}

/* ---------- Nuancier « La matière » ---------- */
.swatches{display:grid;grid-template-columns:repeat(4,1fr);gap:.55rem}
.swatches figure{margin:0;position:relative;overflow:hidden;background:var(--paper-2)}
.swatches img{width:100%;height:auto;aspect-ratio:1;object-fit:cover;transition:transform .6s var(--ease)}
.swatches figure:hover img{transform:scale(1.07)}
.swatches figcaption{position:absolute;inset:auto 0 0 0;padding:1.4rem .8rem .6rem;
  background:linear-gradient(transparent,rgba(20,21,23,.82));color:#fff;font-size:.74rem;
  opacity:0;transition:opacity .25s var(--ease);line-height:1.35}
.swatches figure:hover figcaption,.swatches figure:focus-within figcaption{opacity:1}
@media (max-width:900px){.swatches{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.swatches{grid-template-columns:repeat(2,1fr);gap:.4rem}
  .swatches figcaption{opacity:1;font-size:.68rem}}

/* ---------- Avant / après ---------- */
.beforeafter{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.beforeafter figure{margin:0;position:relative}
.beforeafter img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover}
.beforeafter figcaption{position:absolute;top:0;left:0;background:var(--anthracite);color:var(--gold-2);
  font-family:var(--ff-h);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;padding:.5em .9em;font-weight:600}
@media (max-width:620px){.beforeafter{gap:.6rem}}

/* ---------- Section mise en avant (chaux-chanvre) ---------- */
.spotlight{background:var(--anthracite);color:var(--white);padding:clamp(2.5rem,5vw,4rem);position:relative;overflow:hidden}
.spotlight::before{content:"";position:absolute;top:-45%;right:-12%;width:48vw;height:48vw;max-width:560px;max-height:560px;
  background:radial-gradient(circle,var(--gold-dim) 0%,transparent 70%);pointer-events:none}
.spotlight > *{position:relative}
.spotlight h2{color:var(--white);font-size:clamp(1.6rem,3.4vw,2.4rem);margin-bottom:.6em;max-width:20ch}
.spotlight p{color:rgba(253,252,250,.74)}
.spotlight .eyebrow{color:var(--gold-2)}
.spotlight .grid2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3rem)}
@media (max-width:820px){.spotlight .grid2{grid-template-columns:1fr}}
.tag-demand{display:inline-flex;align-items:center;gap:.5em;background:var(--gold);color:#fff;
  font-family:var(--ff-h);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;padding:.45em .9em;font-weight:600;margin-bottom:1.4em}

/* ---------- Photo à venir ---------- */
.photo-todo{aspect-ratio:4/3;background:var(--anthracite-2);border:1px dashed var(--line-dark);
  display:flex;align-items:center;justify-content:center;text-align:center;padding:1.5rem;
  color:rgba(253,252,250,.4);font-size:.82rem;line-height:1.5}

/* ==========================================================================
   Hero plein cadre (image ou vidéo)
   ========================================================================== */
.hero-full{position:relative;min-height:min(84vh,780px);display:flex;align-items:flex-end;
  background:var(--anthracite);overflow:hidden;isolation:isolate}
.hero-full .hero-bg{position:absolute;inset:0;z-index:-2}
.hero-full .hero-bg img,.hero-full .hero-bg video{width:100%;height:100%;object-fit:cover;display:block}
.hero-full::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(20,21,23,.52) 0%,rgba(20,21,23,.18) 32%,rgba(20,21,23,.80) 82%,rgba(20,21,23,.94) 100%)}
.hero-full .wrap{padding-top:clamp(5rem,14vw,9rem);padding-bottom:clamp(2.5rem,5vw,3.6rem);width:100%}
.hero-full h1{color:var(--white);font-size:clamp(1.75rem,3.4vw,2.9rem);max-width:19ch;font-weight:600;
  text-wrap:balance;text-shadow:0 2px 24px rgba(20,21,23,.45)}
.hero-full h1 em{font-style:normal;color:var(--gold-2)}
.hero-full .hero-lede{color:rgba(253,252,250,.86);font-size:clamp(.98rem,1.4vw,1.1rem);max-width:50ch;
  margin:1.1rem 0 1.9rem;text-shadow:0 1px 16px rgba(20,21,23,.5)}
.hero-full .eyebrow{color:var(--gold-2);text-shadow:0 1px 12px rgba(20,21,23,.6)}
.hero-caption{position:absolute;right:var(--pad);bottom:1.4rem;font-size:.72rem;
  color:rgba(253,252,250,.5);text-align:right;max-width:40%}
@media (max-width:760px){.hero-caption{display:none}}

/* ---------- Technique + macro ---------- */
.tech-list{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line)}
.tech{display:grid;grid-template-columns:210px 1fr;gap:clamp(1.2rem,3vw,2.4rem);
  background:var(--white);padding:2rem;align-items:start}
.section-paper .tech{background:var(--white)}
.tech-macro{overflow:hidden;background:var(--paper-2)}

.tech:hover .tech-macro img{transform:scale(1.05)}
.tech-body h3{font-size:1.28rem;margin-bottom:.55em}
.tech-body p{color:var(--ink-2);font-size:.95rem}
.tech-body p:last-child{margin-bottom:0}
.tech-meta{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1.1rem}
.tech-meta span{font-family:var(--ff-h);font-size:.7rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--gold);background:var(--gold-dim);padding:.4em .75em;font-weight:600}
@media (max-width:720px){.tech{grid-template-columns:1fr;padding:1.6rem}
  .tech-macro{max-width:190px}}

/* ---------- Chantiers groupés par projet ---------- */
.projects{display:flex;flex-direction:column;gap:clamp(2.8rem,6vw,5rem)}
.project{display:grid;grid-template-columns:1.35fr .95fr;gap:clamp(1.5rem,4vw,3rem);align-items:start}
.project:nth-child(even) .project-media{order:2}
.project-media{display:grid;grid-template-columns:1fr 1fr;gap:.55rem}
.project-media figure{margin:0;overflow:hidden;background:var(--paper-2)}

.project-media figure:hover img{transform:scale(1.05)}
.project-media figure.wide{grid-column:span 2}
.project-tag{display:inline-block;font-family:var(--ff-h);font-size:.7rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:.9em}
.project h3{font-size:clamp(1.3rem,2.4vw,1.7rem);margin-bottom:.5em}
.project > div:last-child > p{color:var(--ink-2);font-size:.96rem}
.project h4{font-family:var(--ff-h);font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink);margin:1.6em 0 .9em;padding-top:1.2em;border-top:1px solid var(--line)}
@media (max-width:860px){.project{grid-template-columns:1fr}.project:nth-child(even) .project-media{order:0}}

/* ---------- Technique : macro de matière + texte ---------- */
.techs{display:flex;flex-direction:column;gap:0}
.tech{display:grid;grid-template-columns:220px 1fr;gap:clamp(1.4rem,3.5vw,2.8rem);
  padding:clamp(1.8rem,4vw,2.6rem) 0;border-top:1px solid var(--line);align-items:start}
.tech:last-child{border-bottom:1px solid var(--line)}
.tech-macro{overflow:hidden;background:var(--paper-2)}
.tech-macro img{width:100%;height:auto;aspect-ratio:1;object-fit:cover;transition:transform .6s var(--ease)}
.tech:hover .tech-macro img{transform:scale(1.05)}
.tech-body h3{font-size:clamp(1.2rem,2.2vw,1.5rem);margin-bottom:.5em}
.tech-body p{color:var(--ink-2);font-size:.96rem}
.tech-body p:last-child{margin-bottom:0}
.tech-meta{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1.1rem}
.tech-meta span{font-family:var(--ff-h);font-size:.7rem;letter-spacing:.09em;text-transform:uppercase;
  font-weight:600;color:var(--gold);background:var(--gold-dim);padding:.4em .7em}
@media (max-width:720px){.tech{grid-template-columns:1fr;gap:1.2rem}.tech-macro{max-width:190px}}

/* ---------- Chantiers par projet ---------- */
.projects{display:flex;flex-direction:column;gap:clamp(3rem,7vw,5.5rem)}
.project{display:grid;grid-template-columns:1.4fr .9fr;gap:clamp(1.5rem,4vw,3rem);align-items:start}
.project:nth-child(even) .project-media{order:2}
.project-media{display:grid;grid-template-columns:1fr 1fr;gap:.7rem}
.project-media figure{margin:0;overflow:hidden;background:var(--paper-2)}
.project-media img{width:100%;height:auto;transition:transform .6s var(--ease)}
.project-media figure:hover img{transform:scale(1.04)}
.project-media figure.wide{grid-column:span 2}
.project-tag{display:inline-block;font-family:var(--ff-h);font-size:.7rem;letter-spacing:.12em;
  text-transform:uppercase;font-weight:600;color:var(--gold);margin-bottom:.9em}
.project-body h3{font-size:clamp(1.3rem,2.4vw,1.7rem);margin-bottom:.5em}
.project-body p{color:var(--ink-2);font-size:.95rem}
.project-body h4{font-family:var(--ff-h);font-size:.76rem;letter-spacing:.11em;text-transform:uppercase;
  color:var(--ink);margin:1.6em 0 .8em;padding-top:1.1em;border-top:1px solid var(--line)}
@media (max-width:820px){.project{grid-template-columns:1fr}.project:nth-child(even) .project-media{order:0}}

/* ---------- Mise en avant (chaux-chanvre) ---------- */
.spotlight{background:var(--anthracite);color:var(--white);padding:clamp(2rem,5vw,3.4rem);position:relative;overflow:hidden}
.spotlight::before{content:"";position:absolute;top:-30%;right:-10%;width:46vw;height:46vw;max-width:520px;max-height:520px;
  background:radial-gradient(circle,var(--gold-dim) 0%,transparent 70%);pointer-events:none}
.spotlight>*{position:relative}
.spotlight h2{font-size:clamp(1.6rem,3.4vw,2.4rem);margin-bottom:.7em;color:var(--white)}
.spotlight p{color:rgba(253,252,250,.74)}
.tag-demand{display:inline-block;font-family:var(--ff-h);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  font-weight:600;color:var(--anthracite);background:var(--gold-2);padding:.45em .85em;margin-bottom:1.3em}
.grid2{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
@media (max-width:820px){.grid2{grid-template-columns:1fr}}

/* ---------- Emplacement photo à fournir ---------- */
.photo-todo{aspect-ratio:4/3;border:1px dashed rgba(226,190,110,.5);display:flex;align-items:center;
  justify-content:center;text-align:center;font-size:.78rem;color:rgba(226,190,110,.75);
  background:rgba(226,190,110,.05);padding:1rem;line-height:1.45;font-family:var(--ff-h)}

/* ---------- Bandeau territoire ---------- */
.territory{display:grid;grid-template-columns:repeat(4,1fr);gap:.7rem;align-items:start}
.territory figure{margin:0;overflow:hidden;background:var(--paper-2)}
.territory img{width:100%;height:auto;transition:transform .7s var(--ease)}
.territory figure:hover img{transform:scale(1.05)}
@media (max-width:700px){.territory{grid-template-columns:1fr 1fr}}

/* Légendes Avant / Après dans les chantiers */
.project-media figcaption{font-family:var(--ff-h);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;
  font-weight:600;color:var(--ink-2);padding:.6em .1em 0}


/* ---------- Carrousel d'accueil ---------- */
.hero-carousel{position:relative;margin-top:clamp(2rem,4vw,3rem)}
.carousel{display:flex;gap:1rem;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;
  padding:0 var(--pad);scrollbar-width:none;-ms-overflow-style:none}
.carousel::-webkit-scrollbar{display:none}
.carousel figure{margin:0;flex:0 0 auto;width:min(64%,760px);scroll-snap-align:center;position:relative;
  background:var(--anthracite-2)}
.carousel img{width:100%;height:auto;display:block}
.carousel figcaption{position:absolute;left:0;bottom:0;right:0;padding:2.4rem 1.3rem 1rem;
  background:linear-gradient(transparent,rgba(20,21,23,.88));color:#fff;font-size:.84rem;line-height:1.4}
.carousel figcaption strong{display:block;font-family:var(--ff-h);font-weight:600;font-size:.98rem;margin-bottom:.1em}
.carousel figcaption span{color:rgba(255,255,255,.68);font-size:.78rem}
@media (max-width:820px){.carousel figure{width:86%}}

.carousel-nav{display:flex;align-items:center;gap:1rem;justify-content:space-between;
  max-width:var(--maxw);margin:1.4rem auto 0;padding:0 var(--pad)}
.carousel-dots{display:flex;gap:.5rem}
.carousel-dots button{width:28px;height:3px;border:none;padding:0;background:rgba(253,252,250,.26);
  transition:background .25s var(--ease),width .25s var(--ease);border-radius:2px}
.carousel-dots button[aria-current="true"]{background:var(--gold-2);width:44px}
.carousel-arrows{display:flex;gap:.6rem}
.carousel-arrows button{width:42px;height:42px;border:1px solid var(--line-dark);background:none;
  color:rgba(253,252,250,.75);display:flex;align-items:center;justify-content:center;border-radius:50%;
  transition:all .22s var(--ease)}
.carousel-arrows button:hover:not(:disabled){border-color:var(--gold-2);color:var(--gold-2)}
.carousel-arrows button:disabled{opacity:.28;cursor:default}
@media (prefers-reduced-motion:reduce){.carousel{scroll-behavior:auto}}

/* ---------- Visionneuse plein écran (clic pour agrandir) ---------- */
.zoomable{cursor:zoom-in}

.lightbox{position:fixed;inset:0;z-index:300;display:none;background:rgba(12,13,14,.94);
  padding:clamp(.9rem,3vw,2.2rem);opacity:0;transition:opacity .22s var(--ease)}
/* align-items reste à "stretch" : la rangée 1fr donne ainsi une hauteur
   définie à la figure, sans quoi le max-height de l'image ne s'applique pas
   et la photo déborde du cadre. */
.lightbox.open{display:grid;grid-template-rows:minmax(0,1fr) auto;gap:.9rem;justify-items:center}
.lightbox.shown{opacity:1}
body.lb-open{overflow:hidden}

.lightbox-figure{display:flex;align-items:center;justify-content:center;min-height:0;width:100%;overflow:hidden}
.lightbox-figure img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;
  box-shadow:0 30px 80px rgba(0,0,0,.5)}
.lightbox-caption{color:rgba(253,252,250,.72);font-size:.86rem;line-height:1.5;text-align:center;
  max-width:62ch;margin:0;padding-bottom:.2rem}
.lightbox-count{display:block;font-family:var(--ff-h);font-size:.7rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gold-2);margin-bottom:.4em}

.lightbox button{position:absolute;background:rgba(253,252,250,.08);border:1px solid rgba(255,255,255,.22);
  color:rgba(253,252,250,.85);width:46px;height:46px;border-radius:50%;display:flex;align-items:center;
  justify-content:center;transition:all .2s var(--ease);padding:0}
.lightbox button:hover{background:rgba(253,252,250,.16);border-color:var(--gold-2);color:var(--gold-2)}
.lightbox button:disabled{opacity:.25;cursor:default}
.lb-close{top:clamp(.9rem,3vw,1.6rem);right:clamp(.9rem,3vw,1.6rem)}
.lb-prev{left:clamp(.6rem,2.5vw,1.8rem);top:50%;transform:translateY(-50%)}
.lb-next{right:clamp(.6rem,2.5vw,1.8rem);top:50%;transform:translateY(-50%)}

@media (max-width:640px){
  .lightbox button{width:40px;height:40px}
  .lb-prev{left:.5rem}
  .lb-next{right:.5rem}
  .lightbox-caption{font-size:.8rem}
}
@media (prefers-reduced-motion:reduce){.lightbox{transition:none}}

/* ---------- Message d'erreur du formulaire ---------- */
.form-error{margin:1.1rem 0 0;padding:.9rem 1.1rem;border-left:3px solid #b8862b;
  background:var(--gold-dim);color:var(--ink);font-size:.92rem;line-height:1.55}