:root{--nuit:#16202B;--grege:#E7E1D7;--blanc:#FBFAF7;--laiton:#B8965A;--pierre:#9A9C9B;--max:1240px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Inter",system-ui,sans-serif;color:var(--nuit);background:var(--blanc);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.serif{font-family:"Cormorant Garamond",Georgia,serif}
h1,h2,h3{font-family:"Cormorant Garamond",Georgia,serif;font-weight:600;line-height:1.06;letter-spacing:.005em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 36px}
.demo-bar{background:var(--nuit);color:var(--grege);font-size:13px;text-align:center;padding:8px 14px;position:relative;z-index:50}
.demo-bar a{color:var(--laiton);text-decoration:underline;font-weight:600}
.btn{display:inline-flex;align-items:center;gap:9px;background:var(--nuit);color:var(--blanc);font-weight:500;padding:15px 30px;border:none;cursor:pointer;font-size:13px;letter-spacing:.14em;text-transform:uppercase;transition:.25s}
.btn:hover{background:#0e161e}
.btn.gold{background:var(--laiton)}.btn.gold:hover{background:#a37f44}
.btn.line{background:transparent;color:var(--nuit);box-shadow:inset 0 0 0 1px var(--nuit)}
.btn.line:hover{background:var(--nuit);color:#fff}
.btn.lt{background:transparent;color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.6)}.btn.lt:hover{background:#fff;color:var(--nuit)}
header{position:fixed;top:0;left:0;right:0;z-index:40;background:var(--nuit);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:15px 0}
.logo{font-family:"Cormorant Garamond",serif;font-size:23px;font-weight:600;letter-spacing:.16em;color:#fff;text-transform:uppercase}
.logo b{color:var(--laiton)}
.navlinks{display:flex;gap:28px;align-items:center}
.navlinks a{font-size:12px;letter-spacing:.15em;text-transform:uppercase;color:rgba(255,255,255,.85)}
.navlinks a:hover,.navlinks a.active{color:var(--laiton)}
.navlinks a.cta{color:var(--laiton)}
.burger{display:none;background:none;border:none;color:#fff;font-size:22px;cursor:pointer}
.phero{background:linear-gradient(180deg,#1b2734,#16202B);color:#fff;padding:128px 0 62px}
.phero .kick{font-size:12px;letter-spacing:.34em;text-transform:uppercase;color:var(--laiton);margin-bottom:14px}
.phero h1{font-size:clamp(38px,5.5vw,66px);font-weight:500;max-width:21ch}
.phero p{color:rgba(255,255,255,.82);max-width:58ch;margin-top:16px;font-size:17px}
.crumb{font-size:12px;letter-spacing:.05em;color:rgba(255,255,255,.5);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.7)}.crumb a:hover{color:var(--laiton)}
section{padding:88px 0}
.lead-lab{font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:var(--laiton);margin-bottom:14px;display:block}
h2.sec{font-size:clamp(30px,4.2vw,50px);font-weight:500;max-width:24ch}
.sub{color:#6c7178;max-width:62ch;margin-top:12px}
.prose p{color:#4f555c;font-size:16.5px;margin-top:16px;max-width:72ch}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.grid2 img{width:100%;height:430px;object-fit:cover}
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:48px}
.fcard{border-top:2px solid var(--laiton);padding-top:20px}
.fcard h3{font-size:23px;font-weight:600;margin-bottom:8px}
.fcard p{color:#6c7178;font-size:15px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:48px}
.step .n{font-family:"Cormorant Garamond",serif;font-size:40px;color:var(--laiton);line-height:1}
.step h3{font-size:21px;margin:8px 0 6px}
.step p{color:#6c7178;font-size:14.5px}
.bg-grege{background:var(--grege)}
.ctaband{background:var(--nuit);color:#fff;text-align:center}
.ctaband h2{color:#fff;font-size:clamp(30px,4vw,48px);font-weight:500;max-width:20ch;margin:0 auto}
.ctaband p{color:rgba(255,255,255,.8);max-width:52ch;margin:14px auto 28px}
.quartiers{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.qcard{display:block;background:var(--blanc);border:1px solid #e7e2d9;padding:26px 22px;transition:.25s}
.qcard:hover{border-color:var(--laiton);transform:translateY(-4px)}
.qcard .loc{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--laiton)}
.qcard h3{font-size:22px;font-weight:600;margin:6px 0 4px}
.qcard span{font-size:14px;color:#6c7178}
.faqs{max-width:830px;margin:38px auto 0}
.faq{border-bottom:1px solid #e2ddd2}
.faq summary{list-style:none;cursor:pointer;padding:20px 0;font-family:"Cormorant Garamond",serif;font-size:22px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary .p{color:var(--laiton);transition:transform .2s;font-family:Inter;font-size:20px}
.faq[open] summary .p{transform:rotate(45deg)}
.faq .a{color:#5c6168;font-size:15.5px;padding:0 0 20px;max-width:74ch}
.infos{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:38px}
.info{border:1px solid #e7e2d9;padding:24px}
.info .l{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--pierre);margin-bottom:6px}
.info .v{font-family:"Cormorant Garamond",serif;font-size:21px}
.tablerow{display:grid;grid-template-columns:1fr auto;gap:16px;padding:16px 0;border-bottom:1px solid #e2ddd2;font-size:15.5px}
.tablerow b{font-family:"Cormorant Garamond",serif;font-size:20px;color:var(--laiton);font-weight:600}
.formrow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:14px}
.field label{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--pierre);display:block;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;font-family:"Inter";font-size:15px;color:var(--nuit);padding:13px 15px;border:1px solid #d9d3c7;background:#fff}
.field textarea{min-height:120px;resize:vertical}
.okmsg{display:none;background:#eef3ee;border:1px solid #2f6b4f;color:#2f6b4f;padding:16px;margin-bottom:16px}
.okmsg.show{display:block}
.estimres{margin-top:22px;font-family:"Cormorant Garamond",serif;font-size:36px;color:var(--laiton);min-height:44px}
footer{background:var(--nuit);color:rgba(255,255,255,.55);padding:54px 0 28px;font-size:13.5px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;margin-bottom:28px}
.fgrid h4{font-family:"Cormorant Garamond",serif;color:#fff;font-size:18px;font-weight:600;margin-bottom:12px}
.fgrid a{display:block;color:rgba(255,255,255,.6);margin-bottom:8px}
.fgrid a:hover{color:var(--laiton)}
.fl{font-family:"Cormorant Garamond",serif;color:#fff;font-size:24px;letter-spacing:.16em;text-transform:uppercase}
.fl b{color:var(--laiton)}
.fbottom{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.fbottom a{color:#fff;text-decoration:underline}
.mcta{position:fixed;left:0;right:0;bottom:0;z-index:55;display:none;background:var(--laiton)}
.mcta a{display:block;text-align:center;color:#fff;letter-spacing:.14em;text-transform:uppercase;font-size:13px;padding:15px;font-weight:600}
html.js .rv{opacity:0;transform:translateY(28px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.2,1)}
html.js .rv.in{opacity:1;transform:none}
@media(max-width:900px){
 .navlinks{display:none}.burger{display:block}
 .navlinks.open{display:flex;position:absolute;top:54px;right:0;flex-direction:column;background:var(--nuit);padding:18px 24px;gap:16px;min-width:220px}
 .grid2{grid-template-columns:1fr;gap:30px}.grid2 img{height:300px}
 .feat{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}
 .quartiers{grid-template-columns:1fr 1fr}.infos{grid-template-columns:1fr}.formrow{grid-template-columns:1fr}
 .fgrid{grid-template-columns:1fr 1fr}
 .mcta{display:block}body{padding-bottom:50px}
}
@media(max-width:560px){.steps,.quartiers,.fgrid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.rv{opacity:1!important;transform:none!important;transition:none!important}}

/* Lien d'évitement (accessibilité clavier) */
.skip{position:absolute;left:-9999px;top:0;z-index:10000;background:#16202B;color:#ffffff;padding:.6rem 1rem;border-radius:0 0 8px 0;font-weight:600;text-decoration:none}
.skip:focus{left:0}