/* ==========================================================================
   Couvreur Sainte-Tulle CSTM — feuille principale (préfixe cst-)
   Palette : graphite #17191C · orange #FF8A00 · anthracite #34373B · blanc · orange foncé #D95B00
   Titres Oswald · texte Barlow · motif : chevron de toit (reprise du logo)
   ========================================================================== */
:root{
	--g:#17191C;--g2:#202327;--a:#34373B;--o:#FF8A00;--o2:#D95B00;--w:#fff;
	--soft:#F5F3F0;--line:#E6E2DC;--txt:#2B2D31;--mut:#5C5F66;
	--ff-h:'Oswald','Arial Narrow',Arial,sans-serif;--ff-b:'Barlow',system-ui,-apple-system,'Segoe UI',sans-serif;
	--r:2px;--wrap:1240px;--shadow:0 18px 40px -18px rgba(23,25,28,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:#fff;color:var(--txt);font-family:var(--ff-b);font-size:18px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video{max-width:100%;height:auto;display:block}
a{color:var(--o2);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--g)}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.1em;padding-left:1.2em}
strong{font-weight:700;color:inherit}
[hidden]{display:none!important}
.screen-reader-text{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.cst-skip{position:absolute;left:-999px;top:10px;z-index:999;background:var(--o);color:var(--g);padding:10px 16px;font-weight:700}
.cst-skip:focus{left:10px}
:focus-visible{outline:3px solid var(--o);outline-offset:3px}

/* ---------- Titres : Oswald + interlignage suffisant (pas de superposition) ---------- */
h1,h2,h3,h4,.cst-h2,.cst-h3,.cst-hero__h1,.cst-card__title,.cst-step__t,.cst-footer__claim,.cst-cta h2{font-family:var(--ff-h);font-weight:600;color:var(--g);margin:0 0 .55em;letter-spacing:.005em}
h1,.cst-hero__h1{line-height:1.1}
h2,.cst-h2{line-height:1.15;font-size:clamp(1.9rem,3.4vw,2.85rem);text-transform:uppercase}
h3,.cst-h3{line-height:1.25;font-size:clamp(1.25rem,1.8vw,1.5rem)}
h4{line-height:1.3;font-size:1.15rem}

.cst-wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.cst-wrap--narrow{max-width:820px}

/* ---------- Boutons (carrés, BTP) ---------- */
.cst-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 26px;border:2px solid transparent;border-radius:var(--r);font-family:var(--ff-h);font-weight:500;font-size:1rem;letter-spacing:.07em;text-transform:uppercase;text-decoration:none!important;line-height:1.2;cursor:pointer;transition:background .2s,color .2s,border-color .2s,transform .2s;text-align:center}
.cst-btn:hover{transform:translateY(-2px)}
.cst-btn--orange{background:var(--o)!important;color:var(--g)!important;border-color:var(--o)!important}
.cst-btn--orange:hover{background:var(--o2)!important;border-color:var(--o2)!important;color:#fff!important}
.cst-btn--dark{background:var(--g)!important;color:#fff!important;border-color:var(--g)!important}
.cst-btn--dark:hover{background:var(--o)!important;border-color:var(--o)!important;color:var(--g)!important}
.cst-btn--ghost{background:transparent!important;color:var(--g)!important;border-color:var(--g)!important}
.cst-btn--ghost:hover{background:var(--g)!important;color:#fff!important}
.cst-btn--ghost-light{background:transparent!important;color:#fff!important;border-color:rgba(255,255,255,.65)!important}
.cst-btn--ghost-light:hover{background:#fff!important;color:var(--g)!important;border-color:#fff!important}
.cst-btn--sm{padding:11px 18px;font-size:.92rem}
.cst-btn--block{display:flex;width:100%}
.cst-btns{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 0}
.cst-btns--center{justify-content:center}
.cst-sec--dark .cst-btn--ghost{color:#fff!important;border-color:rgba(255,255,255,.6)!important}
.cst-sec--dark .cst-btn--ghost:hover{background:#fff!important;color:var(--g)!important}

/* ---------- Header flottant (glass clair sur héros sombre) ---------- */
.cst-header{position:fixed;top:14px;left:18px;right:18px;z-index:100;pointer-events:none}
.cst-header__bar{pointer-events:auto;position:relative;max-width:1340px;margin:0 auto;height:78px;display:flex;align-items:center;gap:22px;padding:0 14px 0 20px;background:rgba(255,255,255,.9);-webkit-backdrop-filter:blur(14px) saturate(1.3);backdrop-filter:blur(14px) saturate(1.3);border:1px solid rgba(255,255,255,.7);border-radius:4px;box-shadow:0 14px 34px -16px rgba(0,0,0,.45);transition:height .25s,box-shadow .25s}
.cst-header.is-scrolled .cst-header__bar{height:68px;background:rgba(255,255,255,.96);box-shadow:0 10px 30px -12px rgba(0,0,0,.35)}
.cst-header__bar::after{content:"";position:absolute;left:20px;right:20px;bottom:-1px;height:3px;background:linear-gradient(90deg,var(--o) 0 22%,transparent 22%);border-radius:0 0 3px 3px}
.cst-logo{display:flex;align-items:center;flex:0 0 auto}
.cst-logo img{height:52px!important;width:auto!important}
.cst-header.is-scrolled .cst-logo img{height:46px!important}
.cst-nav{flex:1 1 auto;display:flex;justify-content:center}
.cst-nav__list{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:2px}
.cst-nav__item{position:static;display:flex;align-items:center}
.cst-nav__item.has-drop{position:relative}
.cst-nav__link{display:block;padding:10px 11px;font-family:var(--ff-h);font-weight:500;font-size:.96rem;letter-spacing:.04em;text-transform:uppercase;color:var(--g);text-decoration:none;white-space:nowrap;position:relative}
.cst-nav__link::after{content:"";position:absolute;left:11px;right:11px;bottom:4px;height:2px;background:var(--o);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.cst-nav__item:hover>.cst-nav__link::after,.cst-nav__item.is-current>.cst-nav__link::after{transform:scaleX(1)}
.cst-nav__link:hover{color:var(--g)}
.cst-nav__tog{width:22px;height:30px;margin-left:-8px;border:0;background:transparent;cursor:pointer;position:relative;padding:0}
.cst-nav__tog::before{content:"";position:absolute;left:6px;top:11px;width:7px;height:7px;border-right:2px solid var(--o2);border-bottom:2px solid var(--o2);transform:rotate(45deg);transition:transform .2s}
.cst-nav__item.is-open>.cst-nav__tog::before{transform:rotate(-135deg);top:14px}
.cst-mega,.cst-drop{position:absolute;top:100%;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s;z-index:5}
.cst-mega{left:0;right:0;padding-top:12px}
.cst-mega__in{display:grid;grid-template-columns:1fr 280px;gap:28px;background:#fff;border-radius:4px;box-shadow:0 30px 60px -20px rgba(0,0,0,.4);padding:30px;border-top:4px solid var(--o)}
.cst-mega__cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:24px}
.cst-mega__h{display:block;font-family:var(--ff-h);font-weight:600;font-size:1.05rem;text-transform:uppercase;letter-spacing:.03em;color:var(--g);text-decoration:none;padding-bottom:8px;margin-bottom:8px;border-bottom:2px solid var(--line)}
.cst-mega__h:hover{color:var(--o2);border-color:var(--o)}
.cst-mega__col ul{list-style:none;margin:0;padding:0}
.cst-mega__col li a{display:block;padding:5px 0;font-size:.95rem;color:var(--mut);text-decoration:none;line-height:1.35}
.cst-mega__col li a:hover{color:var(--o2);padding-left:4px}
.cst-mega__promo{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:260px;padding:22px;color:#fff;text-decoration:none;border-radius:3px;overflow:hidden;background:var(--g)}
.cst-mega__promo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;transition:transform .5s}
.cst-mega__promo:hover img{transform:scale(1.05)}
.cst-mega__promo span{position:relative}
.cst-mega__promo-t{font-family:var(--ff-h);font-size:1.35rem;font-weight:600;line-height:1.15;text-transform:uppercase}
.cst-mega__promo-p{font-size:.92rem;line-height:1.45;margin:8px 0 14px;color:rgba(255,255,255,.88)}
.cst-mega__promo-b{align-self:flex-start;background:var(--o);color:var(--g);font-family:var(--ff-h);text-transform:uppercase;letter-spacing:.06em;font-size:.85rem;padding:8px 14px;border-radius:2px}
.cst-drop{left:0;min-width:240px;padding-top:12px}
.cst-drop ul{list-style:none;margin:0;padding:12px;background:#fff;border-radius:4px;box-shadow:0 24px 48px -18px rgba(0,0,0,.38);border-top:4px solid var(--o)}
.cst-drop--zones ul{display:grid;grid-template-columns:1fr 1fr;min-width:430px;gap:0 10px}
.cst-drop li a{display:block;padding:8px 10px;color:var(--txt);text-decoration:none;font-size:.95rem;border-radius:2px;line-height:1.35}
.cst-drop li a:hover{background:var(--soft);color:var(--o2)}
.cst-drop__all{grid-column:1/-1;border-top:1px solid var(--line);margin-top:6px;padding-top:6px}
.cst-drop__all a{font-weight:700;color:var(--o2)!important}
@media (min-width:1181px){
	.cst-nav__item:hover>.cst-mega,.cst-nav__item:hover>.cst-drop,.cst-nav__item:focus-within>.cst-mega,.cst-nav__item:focus-within>.cst-drop,.cst-nav__item.is-open>.cst-mega,.cst-nav__item.is-open>.cst-drop{opacity:1;visibility:visible;transform:none}
}
.cst-header__act{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.cst-header__tel{display:flex;align-items:center;gap:8px;font-family:var(--ff-h);font-weight:600;font-size:1.08rem;letter-spacing:.03em;color:var(--g);text-decoration:none;white-space:nowrap}
.cst-header__tel:hover{color:var(--o2)}
.cst-ic--tel{display:inline-block;width:34px;height:34px;border-radius:50%;background:var(--o) center/17px no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2317191C'%3E%3Cpath d='M6.6 10.8a15.1 15.1 0 0 0 6.6 6.6l2.2-2.2c.3-.3.7-.4 1-.2 1.1.4 2.3.6 3.6.6.6 0 1 .4 1 1V20c0 .6-.4 1-1 1A17 17 0 0 1 3 4c0-.6.4-1 1-1h3.5c.6 0 1 .4 1 1 0 1.2.2 2.4.6 3.6.1.3 0 .7-.2 1z'/%3E%3C/svg%3E")}
.cst-burger{display:none;width:48px;height:48px;border:0;border-radius:3px;background:var(--g);cursor:pointer;position:relative}
.cst-burger__l,.cst-burger__l::before,.cst-burger__l::after{position:absolute;left:13px;width:22px;height:2px;background:#fff;transition:transform .25s,opacity .25s;content:""}
.cst-burger__l{top:23px}.cst-burger__l::before{left:0;top:-7px}.cst-burger__l::after{left:0;top:7px;width:14px;background:var(--o)}
.cst-burger[aria-expanded="true"] .cst-burger__l{background:transparent}
.cst-burger[aria-expanded="true"] .cst-burger__l::before{transform:translateY(7px) rotate(45deg)}
.cst-burger[aria-expanded="true"] .cst-burger__l::after{transform:translateY(-7px) rotate(-45deg);width:22px;background:#fff}

/* Drawer mobile */
.cst-drawer{position:fixed;inset:0;z-index:90;background:rgba(23,25,28,.55);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.cst-drawer.is-open{opacity:1;visibility:visible}
.cst-drawer__in{position:absolute;top:0;right:0;bottom:0;width:min(420px,100%);background:#fff;padding:112px 22px 30px;overflow-y:auto;transform:translateX(100%);transition:transform .3s}
.cst-drawer.is-open .cst-drawer__in{transform:none}
.cst-nav--m{display:block}
.cst-nav--m .cst-nav__list{flex-direction:column;align-items:stretch;gap:0}
.cst-nav--m .cst-nav__item{flex-wrap:wrap;border-bottom:1px solid var(--line);position:relative}
.cst-nav--m .cst-nav__link{flex:1;padding:14px 4px;font-size:1.05rem}
.cst-nav--m .cst-nav__link::after{display:none}
.cst-nav--m .cst-nav__tog{width:48px;height:48px;margin:0}
.cst-nav--m .cst-nav__tog::before{left:18px;top:18px}
.cst-nav--m .cst-nav__item.is-open>.cst-nav__tog::before{top:22px}
.cst-nav--m .cst-mega,.cst-nav--m .cst-drop{position:static;opacity:1;visibility:visible;transform:none;display:none;width:100%;padding:0 0 12px}
.cst-nav--m .cst-nav__item.is-open>.cst-mega,.cst-nav--m .cst-nav__item.is-open>.cst-drop{display:block}
.cst-nav--m .cst-mega__in{grid-template-columns:1fr;box-shadow:none;padding:6px 0 0;border:0}
.cst-nav--m .cst-mega__promo{display:none}
.cst-nav--m .cst-mega__cols{grid-template-columns:1fr;gap:14px}
.cst-nav--m .cst-drop ul{box-shadow:none;border:0;padding:0;min-width:0}
.cst-nav--m .cst-drop--zones ul{grid-template-columns:1fr 1fr}
.cst-drawer__act{display:grid;gap:12px;margin-top:26px}
body.cst-lock{overflow:hidden}

/* ---------- Héros accueil ---------- */
.cst-hero{position:relative;overflow:hidden;background:var(--g);color:#fff;isolation:isolate}
.cst-hero--home{min-height:max(720px,100svh);display:flex;flex-direction:column;padding-top:140px}
.cst-hero__slides{position:absolute;inset:0;z-index:-2}
.cst-hero__slide{position:absolute;inset:0;opacity:0;transition:opacity 1.6s ease}
.cst-hero__slide.is-on{opacity:1}
.cst-hero__img{width:100%;height:100%;object-fit:cover;transform:scale(1.04)}
.cst-hero__slide.is-on .cst-hero__img{animation:cstKen 12s ease-out forwards}
@keyframes cstKen{from{transform:scale(1.12)}to{transform:scale(1.02)}}
.cst-hero__shade{position:absolute;inset:0;z-index:-1;background:linear-gradient(95deg,rgba(23,25,28,.94) 0%,rgba(23,25,28,.8) 38%,rgba(23,25,28,.42) 72%,rgba(23,25,28,.3) 100%),linear-gradient(0deg,rgba(23,25,28,.85) 0%,transparent 40%)}
.cst-hero__roofline{position:absolute;z-index:-1;right:-6%;top:18%;width:min(640px,55vw);aspect-ratio:1;border-top:3px solid rgba(255,138,0,.55);border-left:3px solid rgba(255,138,0,.55);transform:rotate(45deg);pointer-events:none}
.cst-hero__roofline::after{content:"";position:absolute;inset:34px;border-top:1px solid rgba(255,255,255,.18);border-left:1px solid rgba(255,255,255,.18)}
.cst-hero__grid{flex:1;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.78fr);gap:56px;align-items:center;padding-bottom:60px}
.cst-eyebrow{display:inline-flex;align-items:center;gap:12px;font-family:var(--ff-h);font-weight:500;font-size:.92rem;letter-spacing:.14em;text-transform:uppercase;color:var(--o2);margin-bottom:14px;line-height:1.3}
.cst-eyebrow::before{content:"";width:30px;height:2px;background:var(--o);flex:0 0 auto}
.cst-eyebrow--light{color:var(--o)}
.cst-hero__h1{color:#fff;font-size:clamp(2.6rem,5.6vw,4.9rem);text-transform:uppercase;margin:0 0 20px}
.cst-hero__h1 span{color:var(--o);display:inline-block}
.cst-hero__h1--page{font-size:clamp(2.2rem,4.4vw,3.7rem);max-width:950px}
.cst-hero__sub{font-size:clamp(1.05rem,1.4vw,1.25rem);line-height:1.6;color:rgba(255,255,255,.88);max-width:640px;margin:0}
.cst-hero__trust{list-style:none;padding:0;margin:30px 0 0;display:flex;flex-wrap:wrap;gap:10px 26px}
.cst-hero__trust li{position:relative;padding-left:26px;font-weight:600;color:#fff;font-size:1rem}
.cst-hero__trust li::before{content:"";position:absolute;left:0;top:.35em;width:14px;height:8px;border-left:3px solid var(--o);border-bottom:3px solid var(--o);transform:rotate(-45deg)}
.cst-hero__card{background:#fff;color:var(--txt);border-top:5px solid var(--o);border-radius:3px;padding:28px 26px 24px;box-shadow:0 30px 60px -20px rgba(0,0,0,.6)}
.cst-hero__card-t{font-family:var(--ff-h);font-weight:600;font-size:1.7rem;line-height:1.15;text-transform:uppercase;color:var(--g);margin:0 0 6px}
.cst-hero__card-p{font-size:.98rem;color:var(--mut);line-height:1.5;margin:0 0 16px}
.cst-hero__band{position:relative;background:var(--o);color:var(--g)}
.cst-hero__band::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,rgba(217,91,0,.35) 0 2px,transparent 2px 16px);pointer-events:none}
.cst-hero__band-in{display:grid;grid-template-columns:repeat(4,1fr)}
.cst-hero__band a{display:flex;flex-direction:column;padding:22px 20px;color:var(--g);text-decoration:none;border-left:1px solid rgba(23,25,28,.18);transition:background .2s}
.cst-hero__band a:last-child{border-right:1px solid rgba(23,25,28,.18)}
.cst-hero__band a:hover{background:rgba(23,25,28,.1)}
.cst-hero__band strong{font-family:var(--ff-h);font-weight:600;font-size:1.35rem;text-transform:uppercase;line-height:1.15}
.cst-hero__band span{font-size:.95rem;font-weight:600;opacity:.85}

/* ---------- Héros pages internes ---------- */
.cst-hero--page{min-height:520px;display:flex;align-items:flex-end;padding:160px 0 76px}
.cst-hero--slim{min-height:360px;padding:150px 0 56px}
.cst-hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.cst-hero--page .cst-hero__shade{background:linear-gradient(100deg,rgba(23,25,28,.95) 0%,rgba(23,25,28,.82) 45%,rgba(23,25,28,.45) 100%)}
.cst-hero__slash{position:absolute;left:0;bottom:0;width:42%;height:12px;background:var(--o);clip-path:polygon(0 0,100% 0,calc(100% - 12px) 100%,0 100%);z-index:1}
.cst-hero__slash::after{content:"";position:absolute}
.cst-hero--page::after{content:"";position:absolute;right:6%;bottom:-120px;width:320px;aspect-ratio:1;border-top:3px solid rgba(255,138,0,.45);border-left:3px solid rgba(255,138,0,.45);transform:rotate(45deg);z-index:-1}
.cst-hero__in{position:relative}
.cst-crumbs ol{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-wrap:wrap;gap:4px 0;font-size:.9rem}
.cst-crumbs li{color:rgba(255,255,255,.7)}
.cst-crumbs li+li::before{content:"/";margin:0 10px;color:var(--o)}
.cst-crumbs a{color:rgba(255,255,255,.85);text-decoration:none}
.cst-crumbs a:hover{color:var(--o)}

/* ---------- Sections & décors (z-index positifs) ---------- */
.cst-sec{position:relative;z-index:0;padding:clamp(64px,8vw,110px) 0;overflow:hidden}
.cst-sec--light{background:#fff}
.cst-sec--soft{background:var(--soft)}
.cst-sec--dark{background:var(--g);color:rgba(255,255,255,.86)}
.cst-sec--dark h2,.cst-sec--dark h3,.cst-sec--dark .cst-h2{color:#fff}
.cst-sec--dark a:not(.cst-btn):not(.cst-card):not(.cst-zone){color:var(--o)}
.cst-sec--anth{background:var(--a);color:rgba(255,255,255,.88)}
.cst-sec--anth h2,.cst-sec--anth h3{color:#fff}
.cst-shape{position:absolute;z-index:0;pointer-events:none}
.cst-shape--1{right:-140px;top:-60px;width:460px;aspect-ratio:1;border-top:3px solid rgba(255,138,0,.28);border-left:3px solid rgba(255,138,0,.28);transform:rotate(45deg)}
.cst-shape--1::after{content:"";position:absolute;inset:40px;border-top:2px solid rgba(52,55,59,.1);border-left:2px solid rgba(52,55,59,.1)}
.cst-shape--2{left:0;top:0;bottom:0;width:120px;background:repeating-linear-gradient(135deg,rgba(255,138,0,.12) 0 3px,transparent 3px 18px)}
.cst-shape--3{left:-120px;bottom:-200px;width:420px;aspect-ratio:1;border-top:3px solid rgba(255,138,0,.22);border-left:3px solid rgba(255,138,0,.22);transform:rotate(45deg)}
.cst-sec--dark .cst-shape--1::after{border-color:rgba(255,255,255,.08)}
.cst-sec>.cst-wrap>*:last-child{margin-bottom:0}
.cst-sec>.cst-wrap>*+*{margin-top:clamp(44px,5vw,72px)}
.cst-sec>.cst-wrap>.cst-lead+*{margin-top:34px}

/* Lead */
.cst-lead{max-width:860px}
.cst-lead--center{margin-left:auto;margin-right:auto;text-align:center}
.cst-lead--center .cst-eyebrow{justify-content:center}
.cst-lead__txt{font-size:1.08rem;color:var(--mut)}
.cst-sec--dark .cst-lead__txt,.cst-sec--anth .cst-lead__txt{color:rgba(255,255,255,.8)}
.cst-lead__txt>*:last-child{margin-bottom:0}

/* Split */
.cst-split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,5vw,72px);align-items:center}
.cst-split--img-right .cst-split__media{order:2}
.cst-split__media{position:relative;z-index:0;margin:0}
.cst-split__media img{position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:3px;box-shadow:var(--shadow)}
.cst-split__deco{position:absolute;z-index:0;width:46%;height:52%;left:-18px;bottom:-18px;border-left:6px solid var(--o);border-bottom:6px solid var(--o)}
.cst-split--img-right .cst-split__deco{left:auto;right:-18px;border-left:0;border-right:6px solid var(--o)}
.cst-split__body>*:last-child{margin-bottom:0}
.cst-split__body ul{padding-left:0;list-style:none}
.cst-split__body ul li{position:relative;padding-left:22px;margin-bottom:6px}
.cst-split__body ul li::before{content:"";position:absolute;left:0;top:.62em;width:10px;height:10px;background:var(--o);clip-path:polygon(50% 0,100% 100%,0 100%)}

.cst-img{margin:0}.cst-img img{width:100%;border-radius:3px}

/* Cartes */
.cst-cards{display:grid;gap:26px}
.cst-cards--2{grid-template-columns:repeat(2,1fr)}
.cst-cards--3{grid-template-columns:repeat(3,1fr)}
.cst-cards--4{grid-template-columns:repeat(4,1fr)}
.cst-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:3px;overflow:hidden;text-decoration:none;color:var(--txt);transition:transform .3s,box-shadow .3s,border-color .3s;position:relative}
a.cst-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent;color:var(--txt)}
.cst-card__media{margin:0;aspect-ratio:16/10;overflow:hidden;background:var(--soft);position:relative}
.cst-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
a.cst-card:hover .cst-card__media img{transform:scale(1.06)}
.cst-card__media::after{content:"";position:absolute;left:0;bottom:0;width:0;height:4px;background:var(--o);transition:width .35s}
a.cst-card:hover .cst-card__media::after{width:100%}
.cst-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.cst-card__title{font-size:1.28rem;line-height:1.25;margin:0 0 8px;text-transform:uppercase;letter-spacing:.01em}
.cst-card__body p{font-size:.98rem;color:var(--mut);line-height:1.55;margin:0 0 12px}
.cst-card__more{margin-top:auto;font-family:var(--ff-h);font-weight:500;letter-spacing:.08em;text-transform:uppercase;font-size:.88rem;color:var(--o2);display:inline-flex;align-items:center;gap:8px}
.cst-card__more::after{content:"";width:18px;height:2px;background:currentColor;transition:width .25s}
a.cst-card:hover .cst-card__more::after{width:30px}
.cst-card__date{font-size:.85rem;color:var(--mut);margin-bottom:6px;font-weight:600}
.cst-sec--dark .cst-card{border-color:transparent}

/* Stats */
.cst-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--g);border-radius:3px;overflow:hidden;position:relative}
.cst-stat{padding:30px 22px;text-align:center;border-right:1px solid rgba(255,255,255,.1);position:relative}
.cst-stat:last-child{border-right:0}
.cst-stat__n{display:block;font-family:var(--ff-h);font-weight:600;font-size:clamp(2.3rem,4vw,3.3rem);line-height:1.1;color:var(--o)}
.cst-stat__l{display:block;margin-top:6px;color:rgba(255,255,255,.82);font-size:.98rem;line-height:1.4}
.cst-sec--dark .cst-stats{background:var(--a)}

/* CTA */
.cst-cta{position:relative;z-index:0;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;background:var(--g);color:rgba(255,255,255,.85);padding:clamp(32px,4vw,52px);border-radius:3px;border-left:8px solid var(--o)}
.cst-cta__roof{position:absolute;z-index:0;right:-60px;top:30px;width:260px;aspect-ratio:1;border-top:3px solid rgba(255,138,0,.4);border-left:3px solid rgba(255,138,0,.4);transform:rotate(45deg)}
.cst-cta__txt,.cst-cta__act{position:relative;z-index:1}
.cst-cta__txt{flex:1 1 440px}
.cst-cta h2{color:#fff;margin-bottom:10px;font-size:clamp(1.7rem,2.8vw,2.3rem)}
.cst-cta__p>*:last-child{margin-bottom:0}
.cst-cta__act{display:flex;flex-wrap:wrap;gap:12px}
.cst-sec--dark .cst-cta{background:var(--a)}

/* FAQ */
.cst-faq{max-width:920px;margin-left:auto;margin-right:auto}
.cst-q{border-bottom:1px solid var(--line)}
.cst-q:first-child{border-top:1px solid var(--line)}
.cst-q__h{margin:0;font-size:1.12rem;line-height:1.35;text-transform:none}
.cst-q__btn{width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 4px;background:none;border:0;cursor:pointer;text-align:left;font:inherit;font-family:var(--ff-h);font-weight:500;font-size:1.15rem;letter-spacing:.01em;color:var(--g);line-height:1.35}
.cst-q__btn:hover{color:var(--o2)}
.cst-q__ic{flex:0 0 32px;height:32px;border-radius:2px;background:var(--soft);position:relative;transition:background .2s}
.cst-q__ic::before,.cst-q__ic::after{content:"";position:absolute;left:9px;right:9px;top:15px;height:2px;background:var(--g);transition:transform .25s}
.cst-q__ic::after{transform:rotate(90deg)}
.cst-q.is-open .cst-q__ic{background:var(--o)}
.cst-q.is-open .cst-q__ic::after{transform:rotate(0)}
.js .cst-q__a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.js .cst-q.is-open .cst-q__a{grid-template-rows:1fr}
.cst-q__in{overflow:hidden;color:var(--mut)}
.cst-q__in>*:last-child{margin-bottom:22px}
.cst-sec--soft .cst-q__ic{background:#fff}
.cst-sec--dark .cst-q{border-color:rgba(255,255,255,.14)}
.cst-sec--dark .cst-q__btn{color:#fff}
.cst-sec--dark .cst-q__in{color:rgba(255,255,255,.78)}
.cst-sec--dark .cst-q__ic{background:rgba(255,255,255,.1)}
.cst-sec--dark .cst-q__ic::before,.cst-sec--dark .cst-q__ic::after{background:#fff}

/* Étapes */
.cst-steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;counter-reset:st;position:relative}
.cst-step{position:relative;background:#fff;border:1px solid var(--line);border-radius:3px;padding:28px 24px 24px;display:flex;flex-direction:column;gap:14px}
.cst-step::before{content:"";position:absolute;left:0;top:0;height:4px;width:0;background:var(--o);transition:width .8s ease .2s}
.cst-step.is-in::before{width:100%}
html:not(.js) .cst-step::before{width:100%}
.cst-step__n{display:flex;align-items:center;justify-content:center;width:52px;height:52px;background:var(--g);color:var(--o);font-family:var(--ff-h);font-weight:600;font-size:1.4rem;border-radius:2px;clip-path:polygon(50% 0,100% 30%,100% 100%,0 100%,0 30%)}
.cst-step__t{font-size:1.2rem;line-height:1.25;margin:0 0 6px;text-transform:uppercase}
.cst-step__b p{margin:0;color:var(--mut);font-size:.98rem;line-height:1.6}
.cst-sec--soft .cst-step{border-color:transparent}
.cst-sec--dark .cst-step{background:var(--g2);border-color:rgba(255,255,255,.08)}
.cst-sec--dark .cst-step__t{color:#fff}
.cst-sec--dark .cst-step__b p{color:rgba(255,255,255,.75)}
.cst-sec--dark .cst-step__n{background:var(--o);color:var(--g)}

/* Coches */
.cst-checks{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:14px 30px}
.cst-checks li{position:relative;padding:14px 16px 14px 54px;background:#fff;border:1px solid var(--line);border-radius:3px;line-height:1.5}
.cst-checks li::before{content:"";position:absolute;left:14px;top:14px;width:26px;height:26px;background:var(--o);border-radius:2px}
.cst-checks li::after{content:"";position:absolute;left:22px;top:20px;width:10px;height:6px;border-left:2px solid var(--g);border-bottom:2px solid var(--g);transform:rotate(-45deg)}
.cst-sec--soft .cst-checks li{border-color:transparent}
.cst-sec--dark .cst-checks li{background:var(--g2);border-color:rgba(255,255,255,.08);color:rgba(255,255,255,.88)}

/* Citation / note */
.cst-quote{margin:0;position:relative;padding:34px 34px 30px 40px;background:var(--soft);border-left:6px solid var(--o);border-radius:3px}
.cst-quote div{font-family:var(--ff-h);font-weight:400;font-size:clamp(1.2rem,1.8vw,1.45rem);line-height:1.45;color:var(--g)}
.cst-quote div>*:last-child{margin-bottom:0}
.cst-quote cite{display:block;margin-top:14px;font-style:normal;font-weight:700;color:var(--o2);font-size:.95rem;letter-spacing:.04em;text-transform:uppercase}
.cst-note{position:relative;padding:22px 24px 20px;border:2px dashed rgba(217,91,0,.45);border-radius:3px;background:#fff}
.cst-note__t{display:block;font-family:var(--ff-h);font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--o2);margin-bottom:8px}
.cst-note>*:last-child{margin-bottom:0}
.cst-grid2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px)}
.cst-col>*:last-child{margin-bottom:0}

/* Zones */
.cst-zones{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.cst-zone{display:flex;flex-direction:column;padding:18px 18px 16px;background:#fff;border:1px solid var(--line);border-radius:3px;text-decoration:none;color:var(--g);position:relative;overflow:hidden;transition:transform .25s,border-color .25s}
.cst-zone::after{content:"";position:absolute;right:-18px;top:-18px;width:44px;height:44px;border-top:2px solid var(--o);border-left:2px solid var(--o);transform:rotate(45deg);opacity:.5}
.cst-zone strong{font-family:var(--ff-h);font-weight:600;font-size:1.15rem;line-height:1.25;text-transform:uppercase}
.cst-zone span{font-size:.88rem;color:var(--mut)}
.cst-zone:hover{transform:translateY(-3px);border-color:var(--o);color:var(--g)}
.cst-zone--main{background:var(--o);border-color:var(--o)}
.cst-zone--main span{color:var(--g)}
.cst-sec--dark .cst-zone{background:var(--g2);border-color:rgba(255,255,255,.1);color:#fff}
.cst-sec--dark .cst-zone span{color:rgba(255,255,255,.65)}
.cst-sec--dark .cst-zone--main{background:var(--o);color:var(--g)}
.cst-sec--dark .cst-zone--main span{color:var(--g)}
.cst-pills{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:10px}
.cst-pills a{display:inline-block;padding:10px 16px;border:1px solid var(--line);border-radius:2px;background:#fff;color:var(--g);text-decoration:none;font-weight:600;font-size:.95rem}
.cst-pills a:hover{border-color:var(--o);color:var(--o2)}
.cst-related__t{margin-bottom:26px}

/* Galerie + lightbox */
.cst-gal__filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.cst-gal__filters button{padding:10px 16px;border:1px solid var(--line);background:#fff;border-radius:2px;font-family:var(--ff-h);font-weight:500;letter-spacing:.05em;text-transform:uppercase;font-size:.88rem;color:var(--g);cursor:pointer}
.cst-gal__filters button.is-on,.cst-gal__filters button:hover{background:var(--g);color:#fff;border-color:var(--g)}
.cst-gal__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.cst-gal__item{position:relative;display:block;aspect-ratio:1;overflow:hidden;border-radius:3px;background:var(--soft)}
.cst-gal__item img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.cst-gal__item:hover img{transform:scale(1.07)}
.cst-gal__item.is-hidden{display:none}
.cst-gal__tag{position:absolute;left:12px;bottom:12px;background:var(--o);color:var(--g);font-family:var(--ff-h);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;padding:5px 10px;border-radius:2px}
.cst-lb{position:fixed;inset:0;z-index:200;background:rgba(10,11,12,.93);display:flex;align-items:center;justify-content:center;padding:60px 70px}
.cst-lb img{max-height:86vh;width:auto;border-radius:3px;box-shadow:0 20px 60px rgba(0,0,0,.6)}
.cst-lb button{position:absolute;border:0;background:var(--o);color:var(--g);width:48px;height:48px;border-radius:2px;font-size:1.6rem;line-height:1;cursor:pointer}
.cst-lb__x{top:18px;right:18px}.cst-lb__p{left:14px;top:50%;margin-top:-24px}.cst-lb__n{right:14px;top:50%;margin-top:-24px}

/* Vidéo */
.cst-video{margin:0;position:relative;border-radius:3px;overflow:hidden;box-shadow:var(--shadow)}
.cst-video video{width:100%;aspect-ratio:16/9;object-fit:cover}
.cst-video figcaption{position:absolute;left:0;bottom:0;background:var(--o);color:var(--g);font-family:var(--ff-h);text-transform:uppercase;letter-spacing:.05em;padding:8px 14px;font-size:.9rem}

/* Formulaire */
.cst-form-wrap{background:#fff}
.cst-form__grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.cst-field{margin:0}
.cst-field--full{grid-column:1/-1}
.cst-field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:5px;color:var(--g)}
.cst-field input,.cst-field select,.cst-field textarea{width:100%;padding:13px 14px;border:1px solid #CFCAC3;border-radius:2px;background:#fff;font:inherit;font-size:1rem;color:var(--txt);transition:border-color .2s,box-shadow .2s}
.cst-field input:focus,.cst-field select:focus,.cst-field textarea:focus{outline:0;border-color:var(--o);box-shadow:0 0 0 3px rgba(255,138,0,.22)}
.cst-consent{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;line-height:1.45;color:var(--mut);margin:16px 0}
.cst-consent input{margin-top:3px;width:18px;height:18px;accent-color:var(--o2);flex:0 0 auto}
.cst-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.cst-form__msg{padding:14px 16px;border-radius:2px;font-weight:600;margin-bottom:16px}
.cst-form__msg--ok{background:#EAF6EC;color:#1E5B2A;border-left:4px solid #2E8B45}
.cst-form__msg--err{background:#FDEEE6;color:#8A2F00;border-left:4px solid var(--o2)}
.cst-form-wrap--mini .cst-form__grid{gap:10px 12px}
.cst-form-wrap--mini .cst-field input,.cst-form-wrap--mini .cst-field select{padding:11px 12px}
.cst-form-wrap--mini .cst-field label{font-size:.85rem}
.cst-form-wrap--mini .cst-consent{font-size:.78rem;margin:12px 0}
.cst-box{background:#fff;border:1px solid var(--line);border-top:5px solid var(--o);border-radius:3px;padding:clamp(24px,3vw,38px)}

/* Contact card / horaires */
.cst-ccard{background:var(--g);color:rgba(255,255,255,.86);border-radius:3px;padding:30px}
.cst-ccard ul{list-style:none;margin:0 0 20px;padding:0}
.cst-ccard li{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.cst-ccard__k{display:block;font-family:var(--ff-h);text-transform:uppercase;letter-spacing:.1em;font-size:.8rem;color:var(--o)}
.cst-ccard a{color:#fff;font-weight:700;font-size:1.15rem;text-decoration:none}
.cst-ccard a:hover{color:var(--o)}
.cst-hours{width:100%;border-collapse:collapse;font-size:.98rem}
.cst-hours th,.cst-hours td{padding:8px 0;text-align:left;border-bottom:1px solid rgba(127,127,127,.2)}
.cst-hours td{text-align:right;font-weight:600}

/* Article / prose */
.cst-article{padding:clamp(56px,7vw,90px) 0}
.cst-prose{font-size:1.08rem}
.cst-prose h2{font-size:clamp(1.6rem,2.6vw,2.1rem);margin-top:1.6em}
.cst-prose h3{margin-top:1.4em}
.cst-prose>*:first-child{margin-top:0}
.cst-prose ul li,.cst-prose ol li{margin-bottom:6px}
.cst-prose img{border-radius:3px;margin:10px 0 24px}
.cst-prose .cst-note,.cst-prose .cst-quote,.cst-prose .cst-img,.cst-prose .cst-checks{margin:28px 0}
.cst-legal{max-width:880px}
.cst-legal h2{font-size:1.5rem;margin-top:1.8em}
.cst-legal h2:first-child{margin-top:0}

/* Plan du site */
.cst-plan{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:30px}
.cst-plan__col ul{list-style:none;padding:0;margin:0}
.cst-plan__col li{padding:4px 0}
.cst-plan__col a{color:var(--txt);text-decoration:none}
.cst-plan__col a:hover{color:var(--o2)}
.cst-plan__col h2 a{color:var(--g)}
.cst-plan__col--wide{grid-column:1/-1}
.cst-plan__col--wide ul{columns:2;column-gap:30px}

/* ---------- Footer ---------- */
.cst-footer{position:relative;z-index:0;overflow:hidden;background:var(--g);color:rgba(255,255,255,.72);padding:70px 0 26px;font-size:.98rem}
.cst-footer__roof{position:absolute;z-index:0;left:50%;top:-330px;width:520px;aspect-ratio:1;margin-left:-260px;border-top:3px solid rgba(255,138,0,.35);border-left:3px solid rgba(255,138,0,.35);transform:rotate(45deg)}
.cst-footer__top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;padding-bottom:40px;margin-bottom:46px;border-bottom:1px solid rgba(255,255,255,.1)}
.cst-footer__claim{color:#fff;font-size:clamp(1.5rem,2.6vw,2.15rem);line-height:1.2;text-transform:uppercase;margin:0;max-width:720px}
.cst-footer__claim span{color:var(--o)}
.cst-footer__top .cst-btns{margin:0}
.cst-footer__grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:40px}
.cst-footer__logo img{height:86px!important;width:auto!important;margin-bottom:18px}
.cst-footer__brand p{line-height:1.6}
.cst-footer__h{font-family:var(--ff-h);font-weight:600;color:var(--o);text-transform:uppercase;letter-spacing:.1em;font-size:.95rem;margin:0 0 14px;line-height:1.3}
.cst-footer__col ul{list-style:none;margin:0 0 24px;padding:0}
.cst-footer__col li{padding:4px 0;line-height:1.4}
.cst-footer a{color:rgba(255,255,255,.78);text-decoration:none}
.cst-footer a:hover{color:var(--o)}
.cst-footer__contact{list-style:none;padding:0;margin:16px 0 0}
.cst-footer__contact li{padding:3px 0}
.cst-footer__contact li:first-child a{font-family:var(--ff-h);font-size:1.4rem;color:#fff;font-weight:600;letter-spacing:.03em}
.cst-footer__bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);font-size:.9rem}
.cst-footer__bottom p{margin:0}
.cst-footer__bottom ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px 22px}

/* Barre mobile */
.cst-mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;grid-template-columns:1fr 1fr;box-shadow:0 -8px 24px rgba(0,0,0,.25)}
.cst-mbar a{display:flex;align-items:center;justify-content:center;gap:10px;padding:14px 10px;font-family:var(--ff-h);font-weight:500;text-transform:uppercase;letter-spacing:.07em;text-decoration:none;font-size:1rem}
.cst-mbar__tel{background:var(--g);color:#fff}
.cst-mbar__tel .cst-ic--tel{width:28px;height:28px;background-size:14px}
.cst-mbar__devis{background:var(--o);color:var(--g)}

/* Scroll-reveal (gaté derrière html.js) */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.is-in{opacity:1;transform:none}
html:not(.js) .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}.cst-hero__slide.is-on .cst-hero__img{animation:none}html{scroll-behavior:auto}}

/* ---------- Responsive ---------- */
@media (max-width:1320px){.cst-header__tel-n{display:none}.cst-nav__link{padding:10px 9px;font-size:.92rem}}
@media (max-width:1180px){
	.cst-header .cst-nav{display:none}
	.cst-burger{display:block}
	.cst-header__bar{justify-content:space-between}
	.cst-cards--4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1080px){
	.cst-hero__grid{grid-template-columns:1fr;gap:36px;padding-bottom:48px}
	.cst-hero__card{max-width:620px}
	.cst-cards--3{grid-template-columns:repeat(2,1fr)}
	.cst-footer__grid{grid-template-columns:1fr 1fr}
	.cst-gal__grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
	.cst-split,.cst-grid2{grid-template-columns:1fr}
	.cst-split--img-right .cst-split__media{order:0}
	.cst-stats{grid-template-columns:repeat(2,1fr)}
	.cst-stat:nth-child(2){border-right:0}
	.cst-stat:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.1)}
	.cst-hero__band-in{grid-template-columns:repeat(2,1fr)}
	.cst-hero__band a{border-bottom:1px solid rgba(23,25,28,.18)}
	.cst-checks{grid-template-columns:1fr}
	.cst-hero--page{min-height:440px;padding:140px 0 60px}
}
@media (max-width:760px){
	body{font-size:17px;padding-bottom:56px}
	.cst-mbar{display:grid}
	.cst-header{top:10px;left:10px;right:10px}
	.cst-header__bar{height:68px;padding:0 10px 0 14px}
	.cst-header__cta,.cst-header__tel{display:none}
	.cst-logo img{height:48px!important}
	.cst-cards--2,.cst-cards--3,.cst-cards--4{grid-template-columns:1fr}
	.cst-form__grid{grid-template-columns:1fr}
	.cst-drop--zones ul{min-width:0}
	.cst-hero--home{padding-top:112px}
	.cst-footer__grid{grid-template-columns:1fr}
	.cst-plan__col--wide ul{columns:1}
	.cst-lb{padding:60px 12px}
}
@media (max-width:560px){
	.cst-wrap{padding:0 16px}
	.cst-hero__h1{font-size:clamp(2.2rem,10vw,2.8rem)}
	.cst-hero__h1--page{font-size:clamp(1.9rem,8.4vw,2.4rem)}
	.cst-hero__card{padding:22px 18px}
	.cst-hero__band strong{font-size:1.1rem}
	.cst-hero__band a{padding:16px 14px}
	.cst-gal__grid{grid-template-columns:1fr 1fr;gap:8px}
	.cst-stat{padding:22px 12px}
	.cst-btns .cst-btn{width:100%}
	.cst-cta{border-left-width:5px}
	.cst-split__deco{left:-8px;bottom:-8px}
	.cst-split--img-right .cst-split__deco{right:-8px}
}