:root{--bg:#F7F2E9;--paper:#FFFDF8;--ink:#2E3E74;--ink2:#4C5988;--line:#E2D7C4;--acc:#7A1F2B;--acc-d:#5B1420;--gold:#7A1F2B;--night:#4A1A26;--cream:#F3E6D0;--ok:#1F6B4A;
--f-d:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;--f-b:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--r:22px;--sh:0 18px 40px -22px rgba(27,35,64,.35)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.65 var(--f-b);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}a{color:var(--acc)}a:visited{color:var(--acc-d)}a:hover{color:var(--acc-d)}
:focus-visible{outline:3px solid var(--acc);outline-offset:3px;border-radius:6px}section.dark :focus-visible,.hero :focus-visible{outline-color:#fff}
h1,h2,h3{font-family:var(--f-d);font-weight:600;line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em;text-wrap:balance}
h1{font-size:clamp(2.1rem,5.2vw,3.7rem)}h2{font-size:clamp(1.55rem,3vw,2.2rem)}h3{font-size:1.25rem}
p{margin:0 0 1em}.wrap{width:min(1120px,100% - 40px);margin:0 auto}.narrow{width:min(760px,100% - 40px);margin:0 auto}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 14px;z-index:99}
.eyebrow{font:600 .78rem/1 var(--f-b);letter-spacing:.16em;text-transform:uppercase;color:var(--acc-d);margin-bottom:14px;display:block}
header.top{position:sticky;top:0;z-index:50;background:rgba(247,242,233,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand img{height:56px;width:auto;display:block}
.brand b{font:600 1.05rem/1.1 var(--f-d)}.brand small{display:block;font:500 .7rem var(--f-b);letter-spacing:.14em;text-transform:uppercase;color:var(--ink2)}
nav.main ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;align-items:center}
nav.main a{display:block;padding:9px 13px;border-radius:999px;text-decoration:none;color:var(--ink);font-weight:500;font-size:.95rem}
nav.main a:hover,nav.main a[aria-current=page]{background:#EADFCB}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:999px;background:var(--acc);color:#fff;font-weight:600;text-decoration:none;border:0;cursor:pointer;font-size:1rem;box-shadow:0 10px 24px -12px rgba(122,31,43,.7);transition:transform .2s,background .2s}
.btn:hover{background:var(--acc-d);color:#fff;transform:translateY(-2px)}.btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--ink)}.btn.ghost:hover{background:var(--ink);color:#fff}
.burger{display:none}
.hero{position:relative;color:#fff;min-height:min(86vh,760px);display:grid;align-items:end;overflow:hidden;background:var(--night)}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.92;transform:scale(1.06)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(40,14,22,.12) 0%,rgba(40,14,22,.38) 55%,rgba(40,14,22,.78) 100%)}
.hero .in{position:relative;z-index:2;padding:110px 0 64px}.hero h1{max-width:16ch}.hero p.lead{max-width:56ch;font-size:1.18rem;color:#F3EBDD}
.hero .eyebrow{color:var(--cream)}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.hero .btn.ghost{color:#fff;box-shadow:inset 0 0 0 1.5px #fff}.hero .btn.ghost:hover{background:#fff;color:var(--ink)}
.pagehead{padding:70px 0 34px}.pagehead .lead{font-size:1.2rem;color:var(--ink2);max-width:62ch}
section{padding:72px 0}section.alt{background:var(--paper);border-block:1px solid var(--line)}section.dark{background:var(--night);color:#F3EBDD}section.dark a{color:var(--cream)}section.dark h2{color:#fff}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s;transform-style:preserve-3d}
.card:hover{transform:translateY(-6px);color:inherit}.card .ph{aspect-ratio:4/3;overflow:hidden}.card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .6s}.card:hover .ph img{transform:scale(1.05)}
.card .tx{padding:22px 24px 26px}.card h3{margin-bottom:.35em}.more{font-weight:600;color:var(--acc-d)}
.arch{border-radius:200px 200px var(--r) var(--r);overflow:hidden;box-shadow:var(--sh)}.arch img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.steps li{counter-increment:s;padding:22px;border:1px solid rgba(255,255,255,.18);border-radius:var(--r)}.steps li::before{content:counter(s,decimal-leading-zero);font:600 2rem var(--f-d);color:var(--cream);display:block}
.chips{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:0}.chips a{display:block;padding:10px 18px;border-radius:999px;background:var(--paper);border:1px solid var(--line);text-decoration:none;font-weight:500;color:var(--ink)}.chips a:hover{border-color:var(--acc);color:var(--acc-d)}.chips a:visited{color:var(--ink)}
.prose h2{margin-top:1.6em}.prose ul{padding-left:1.2em}.crumbs{font-size:.88rem;color:var(--ink2);padding:18px 0 0}.crumbs a{color:var(--ink2)}
details{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:16px 20px;margin:0 0 12px}summary{cursor:pointer;font-weight:600}details p{margin:.8em 0 0}
form.dev{display:grid;gap:16px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:28px;box-shadow:var(--sh)}
label{font-weight:600;font-size:.92rem;display:grid;gap:6px}input,select,textarea{font:inherit;padding:13px 15px;border-radius:12px;border:1.5px solid #8A8570;background:#fff;color:var(--ink);width:100%}
input:focus,select:focus,textarea:focus{outline:3px solid var(--acc);border-color:var(--ink)}.hp{position:absolute;left:-9999px}.ok{color:var(--ok);font-weight:600}.err{color:#A3201B;font-weight:600}
.placeholder{background:#FFF1B8;color:#3B3000;padding:0 4px;border-radius:4px}
footer.foot{background:var(--paper);color:var(--ink);padding:60px 0 100px;border-top:1px solid var(--line)}footer.foot a,footer.foot a:visited{color:var(--acc);text-decoration:underline;text-underline-offset:3px}footer.foot a:hover,footer.foot a:focus-visible{color:var(--acc-d);text-decoration-thickness:2px}footer.foot a:active{color:var(--night)}footer h3{color:var(--ink);font-size:1.05rem}.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
footer ul{list-style:none;padding:0;margin:0}footer li{margin:.35em 0}.mini{font-size:.85rem;color:var(--ink2);margin-top:30px;border-top:1px solid var(--line);padding-top:18px}
.callbar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;grid-template-columns:1fr 1fr;gap:8px;padding:10px;background:rgba(43,15,22,.97)}
.callbar a{display:block;text-align:center;padding:13px;border-radius:12px;text-decoration:none;font-weight:600;color:#fff;background:var(--acc)}.callbar a+a{background:#2E7D5B}.callbar a{color:#fff}
.js .rv{opacity:0}.js .rv.in{opacity:1;transition:opacity .8s}
.cap{font-size:.8rem;color:var(--ink2);margin-top:8px}
@media(max-width:900px){.grid3,.grid2,.steps,.fgrid{grid-template-columns:1fr}.burger{display:inline-flex}nav.main{display:none;position:absolute;left:0;right:0;top:100%;background:var(--bg);border-bottom:1px solid var(--line);padding:10px 20px 20px}nav.main.open{display:block}nav.main ul{flex-direction:column;align-items:stretch}.callbar{display:grid}section{padding:52px 0}.hero .in{padding-top:80px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}.js .rv{opacity:1}.hero img.bg{transform:none}}

.grid3>*,.grid2>*{min-width:0}img{width:100%;height:auto}.hero img.bg{width:100%;height:100%}html,body{overflow-x:clip}
.btn,.btn:visited,nav.main a.btn,nav.main a.btn:visited{color:#fff}.btn:hover,nav.main a.btn:hover{color:#fff}.btn.ghost,.btn.ghost:visited{color:var(--ink)}.btn.ghost:hover{color:#fff}.hero .btn.ghost,.hero .btn.ghost:visited,section.dark .btn.ghost{color:#fff}.hero .btn.ghost:hover{color:var(--ink)}.chap-bar a.on,.chap-bar a.on:visited{color:var(--acc)}.chap-bar a,.chap-bar a:visited{color:#fff}
.toc{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:16px 22px;margin:0 0 24px}.toc ol{margin:.5em 0 0;padding-left:1.2em}.toc a{text-decoration:none}.grid3 figure img{aspect-ratio:4/3;object-fit:cover}.prose figure img{border-radius:var(--r)}
.split-w{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.08em}.split-w>span{display:inline-block;will-change:transform}
.mag{will-change:transform}
.count{font:600 clamp(2.4rem,5vw,3.6rem)/1 var(--f-d);color:var(--cream)}.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:30px}.facts div{border-top:1px solid rgba(243,230,208,.35);padding-top:16px}.facts p{margin:.3em 0 0;color:#E9DCC6}
/* chapitres : visite des prestations (épinglée sur ordinateur, liste sur mobile) */
.chap{position:relative;background:var(--night);color:#F3EBDD;padding:0}
.chap-in{display:grid;grid-template-columns:1fr;position:relative}
.chap-stage{position:relative;height:100vh;min-height:560px;overflow:hidden}
.chap-item{position:absolute;inset:0;opacity:0}.chap-item:first-child{opacity:1}
.chap-item img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.chap-item::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(40,14,22,.82) 0%,rgba(40,14,22,.5) 45%,rgba(40,14,22,.08) 100%)}
.chap-txt{position:absolute;z-index:2;left:max(20px,calc((100% - 1120px)/2));top:50%;transform:translateY(-50%);max-width:520px}
.chap-txt h2{color:#fff}.chap-txt .num{font:600 1rem var(--f-b);letter-spacing:.16em;color:var(--cream)}
.chap-bar{position:absolute;z-index:3;left:max(20px,calc((100% - 1120px)/2));bottom:34px;display:flex;gap:10px;flex-wrap:wrap}
.chap-bar a{padding:10px 16px;border-radius:999px;border:1px solid rgba(255,255,255,.45);color:#fff;text-decoration:none;font-size:.92rem;position:relative;overflow:hidden}
.chap-bar a.on{background:#fff;color:var(--acc)}.chap-prog{position:absolute;z-index:3;left:0;bottom:0;height:4px;background:var(--cream);width:0}
/* défilement horizontal des villes */
.hs{overflow:hidden;background:var(--paper);border-block:1px solid var(--line)}
.hs-track{display:flex;gap:20px;padding:0 max(20px,calc((100% - 1120px)/2));width:max-content}
.hs-card{flex:0 0 min(78vw,360px);text-decoration:none;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh)}
.hs-card:visited{color:var(--ink)}.hs-card .ph{aspect-ratio:4/3;overflow:hidden}.hs-card img{width:100%;height:100%;object-fit:cover}.hs-card b{display:block;padding:14px 18px;font:600 1.1rem var(--f-d)}
/* cartes en 3D */
.card{transform:perspective(900px) rotateX(calc(var(--rx,0deg) + var(--mrx,0deg))) rotateY(var(--mry,0deg));transform-style:preserve-3d;will-change:transform;transition:box-shadow .25s}.card:hover{transform:perspective(900px) translateY(-6px) rotateX(calc(var(--rx,0deg) + var(--mrx,0deg))) rotateY(var(--mry,0deg))}.grid2>.rv[style*=sticky]{align-self:start}@media(max-width:900px){.grid2>.rv[style*=sticky]{position:static!important}}.prose a,.lead a,.foot a,.narrow a{overflow-wrap:anywhere}.arch,figure.rv{perspective:1100px}.arch img,figure.rv img{transform:rotateX(var(--ax,0deg)) rotateY(var(--ay,0deg)) scale(var(--as,1));transform-origin:50% 60%;will-change:transform;backface-visibility:hidden}.card .tx{transform:translateZ(24px)}.hero .in{transform-style:preserve-3d}
/* menu déroulant des sous-pages + bannières */
nav.main li.has-sub{position:relative}nav.main ul.sub{display:none;position:absolute;left:0;top:100%;min-width:250px;flex-direction:column;align-items:stretch;gap:2px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh);z-index:60}
nav.main li.has-sub:hover>ul.sub,nav.main li.has-sub:focus-within>ul.sub{display:flex}nav.main ul.sub a{border-radius:10px;padding:10px 14px;white-space:nowrap}
.banner{margin:18px 0 0;position:relative;border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);height:clamp(190px,30vw,380px);background:var(--night)}.banner img{width:100%;height:100%;object-fit:cover}.banner::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(40,14,22,0) 55%,rgba(40,14,22,.45) 100%)}.banner figcaption{position:absolute;z-index:2;left:20px;bottom:14px;color:#fff;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase}
@media(max-width:900px){nav.main ul.sub{display:flex;position:static;box-shadow:none;border:0;background:transparent;padding:0 0 4px 14px;min-width:0}nav.main ul.sub a{padding:7px 12px;font-size:.88rem;white-space:normal}}
/* sections statiques accueil */
.cgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.cgrid .hs-card{display:block}.grid2.stat{gap:56px}@media(max-width:900px){.cgrid{grid-template-columns:repeat(2,1fr);gap:12px}.hs-card b{font-size:1rem;padding:10px 12px}.grid2.stat{gap:26px}}
/* formulaire en 2 étapes */
fieldset{border:0;margin:0;padding:0;min-width:0}legend{font-weight:700;font-size:1.05rem;margin-bottom:12px;padding:0}
.opts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.opt{position:relative}.opt input{position:absolute;opacity:0;inset:0;width:100%;height:100%;cursor:pointer;margin:0}
.opt span{display:flex;align-items:center;min-height:56px;padding:12px 16px;border:1.5px solid #8A8570;border-radius:14px;background:#fff;font-weight:600}
.opt input:checked+span{border-color:var(--acc);box-shadow:inset 0 0 0 1.5px var(--acc);background:#FBF3F1;color:var(--acc-d)}.opt input:focus-visible+span{outline:3px solid var(--acc);outline-offset:2px}
.st-b{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.stepper{font-size:.9rem;color:var(--ink2);margin:0}
.err-m{color:#A3201B;font-weight:600;font-size:.9rem;margin:0}[aria-invalid=true]{border-color:#A3201B!important}
.ck-l{display:flex;gap:10px;align-items:flex-start;font-weight:500}.ck-l input{width:24px;height:24px;flex:none;margin-top:2px}
.js .step[hidden]{display:none}
@media(max-width:900px){.facts{grid-template-columns:1fr}.opts{grid-template-columns:1fr}.chap-stage{height:auto;min-height:0}.chap-item{position:relative;opacity:1;min-height:420px}.chap-item+.chap-item{border-top:2px solid var(--night)}.chap-txt{position:absolute;left:20px;right:20px;top:auto;bottom:24px;transform:none;max-width:none}.chap-item::after{background:linear-gradient(0deg,rgba(40,14,22,.85) 0%,rgba(40,14,22,.35) 60%,rgba(40,14,22,0) 100%)}.chap-bar,.chap-prog{display:none}.hs-track{width:auto;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px}.hs-card{scroll-snap-align:start}}
@media(hover:none){.card:hover{transform:perspective(900px) rotateX(var(--rx,0deg)) rotateY(0deg)}.card .tx{transform:none}.btn:hover{transform:none}.card:hover .ph img{transform:none}}
@media(prefers-reduced-motion:reduce){.chap-item{position:relative;opacity:1;min-height:420px}.chap-stage{height:auto}.chap-bar,.chap-prog{display:none}}