/* Layout : une colonne mobile d'abord ; bandeaux pleine largeur, contenu borné à 1080px ; frise à colombages comme séparateur. */
:root{
  --navy:#1b2a4a; --navy-2:#24365e; --sun:#e8a33d; --sun-soft:#f6dcae;
  --bg:#fbfaf7; --surface:#ffffff; --ink:#1b2333; --muted:#5a6275; --line:#e3e1db;
  --on-navy:#f4f1ea; --ok:#2f7d4f;
  --f-display:"Archivo","Arial Narrow",system-ui,sans-serif;
  --f-body:"Source Sans 3","Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --navy:#16213b; --navy-2:#1e2d4f; --sun:#f0b24f; --sun-soft:#4a3a1c;
  --bg:#0f1524; --surface:#172036; --ink:#e9ebf2; --muted:#a3aac0; --line:#2a3550; --on-navy:#f4f1ea; --ok:#5cc28a; color-scheme:dark}}
:root[data-theme="dark"]{
  --navy:#16213b; --navy-2:#1e2d4f; --sun:#f0b24f; --sun-soft:#4a3a1c;
  --bg:#0f1524; --surface:#172036; --ink:#e9ebf2; --muted:#a3aac0; --line:#2a3550; --on-navy:#f4f1ea; --ok:#5cc28a; color-scheme:dark}
*{box-sizing:border-box}
html,body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.55}
.wrap{max-width:1080px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--f-display);font-stretch:85%;line-height:1.08;text-wrap:balance;margin:0}
h2{font-size:clamp(28px,5vw,42px);font-weight:800;color:var(--ink)}
h3{font-size:22px;font-weight:700}
p{margin:0}
.eyebrow{font-family:var(--f-display);font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--sun)}
a{color:inherit}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px;border-radius:4px}

/* barre haute */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--navy)}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:var(--navy);color:var(--on-navy)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:10px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand img{width:40px;height:40px;border-radius:50%;background:#fff;object-fit:cover}
.brand b{font-family:var(--f-display);font-stretch:80%;font-size:20px;letter-spacing:.04em}
.brand small{display:block;font-size:11px;letter-spacing:.2em;opacity:.75;margin-top:-3px}
.call{display:inline-flex;align-items:center;gap:8px;background:var(--sun);color:#1b2a4a;font-weight:700;padding:9px 14px;border-radius:999px;text-decoration:none;white-space:nowrap;font-size:15px}

/* hero */
.hero{background:var(--navy);color:var(--on-navy);overflow:hidden;position:relative}
.hero .wrap{display:grid;grid-template-columns:1.25fr .9fr;gap:40px;align-items:center;padding-block:56px 64px}
.hero h1{font-size:clamp(38px,7vw,68px);font-weight:900;color:var(--on-navy)}
.hero h1 em{font-style:normal;color:var(--sun)}
.hero p.lead{margin-top:18px;font-size:19px;max-width:34em;opacity:.92}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:17px;padding:14px 22px;border-radius:12px;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:var(--f-body)}
.btn-sun{background:var(--sun);color:#1b2a4a}
.btn-ghost{border-color:rgba(244,241,234,.45);color:var(--on-navy);background:transparent}
.hero .facts{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:26px;font-size:15px;opacity:.85}
.hero .facts span::before{content:"✓ ";color:var(--sun);font-weight:700}
.logo-card{background:#fff;border-radius:24px;padding:18px;box-shadow:0 30px 60px -20px rgba(0,0,0,.45);transform:rotate(1.5deg);max-width:100%}
.logo-card img{display:block;width:100%;height:auto;border-radius:12px}

/* frise colombage */
.timber{height:28px;background:
  linear-gradient(var(--navy),var(--navy)) 0 0/100% 4px no-repeat,
  linear-gradient(var(--navy),var(--navy)) 0 100%/100% 4px no-repeat,
  repeating-linear-gradient(90deg,transparent 0 40px,var(--navy) 40px 44px),
  repeating-linear-gradient(45deg,transparent 0 18px,var(--navy) 18px 21px,transparent 21px 40px),
  var(--sun-soft)}

section{padding-block:64px}
.sec-head{display:grid;gap:10px;margin-bottom:32px;max-width:40em}
.sec-head p{color:var(--muted)}

/* offres */
.offers{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.offer{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:12px}
.offer .ico{color:var(--ink);width:52px;height:52px;border-radius:14px;background:var(--sun-soft);display:grid;place-items:center}
.offer .ico svg{width:30px;height:30px}
.offer p{color:var(--muted)}
.offer .spec{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);font-size:14px;color:var(--ink);font-variant-numeric:tabular-nums}
.offer .spec b{font-family:var(--f-display)}

/* étapes */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{position:relative;padding-top:52px}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:0;left:0;width:40px;height:40px;border-radius:50%;background:var(--navy);color:var(--sun);font-family:var(--f-display);font-weight:800;display:grid;place-items:center;font-size:19px}
:root[data-theme="dark"] .step::before{background:var(--sun);color:#1b2a4a}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .step::before{background:var(--sun);color:#1b2a4a}}
.step h3{font-size:19px;margin-bottom:6px}
.step p{color:var(--muted);font-size:16px}

/* zone */
.zone{background:var(--surface);border-block:1px solid var(--line)}
.zone .wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.depts{display:grid;gap:12px}
.dept{display:flex;align-items:center;gap:16px;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:var(--bg)}
.dept .num{font-family:var(--f-display);font-weight:900;font-stretch:75%;font-size:40px;color:var(--sun);line-height:1;min-width:56px}
.dept b{display:block;font-size:18px}
.dept span{color:var(--muted);font-size:15px}

/* partenaire */
.partner{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.pbox{border-radius:18px;padding:26px;border:1px solid var(--line);background:var(--surface);display:grid;gap:12px;align-content:start}
.pbox ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.pbox li{padding-left:26px;position:relative}
.pbox li::before{content:"";position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:50%;background:var(--sun)}
.certs{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:13px;font-weight:700;padding:5px 10px;border-radius:999px;background:var(--sun-soft);color:var(--ink)}

/* formulaire */
.lead-sec{background:var(--navy);color:var(--on-navy)}
.lead-sec h2{color:var(--on-navy)}
.lead-sec .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.lead-sec .sec-head p{color:rgba(244,241,234,.8)}
form{background:var(--surface);color:var(--ink);border-radius:20px;padding:24px;display:grid;gap:18px;min-width:0}
fieldset{border:0;margin:0;padding:0;display:grid;gap:8px}
legend{font-weight:700;margin-bottom:8px}
.opts{display:flex;flex-wrap:wrap;gap:8px}
.opts label{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--line);border-radius:10px;padding:9px 12px;cursor:pointer;background:var(--bg);font-size:16px}
.opts input{accent-color:var(--navy)}
.opts label:has(input:checked){border-color:var(--sun);background:var(--sun-soft)}
.field{display:grid;gap:6px}
.field label{font-weight:700}
.field input{font:inherit;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);width:100%}
.consent{font-size:13px;color:var(--muted)}
.msg{font-size:15px;padding:12px 14px;border-radius:10px;background:var(--sun-soft)}
.contact-line{display:grid;gap:6px;margin-top:20px;font-size:17px}
.contact-line b{font-family:var(--f-display);font-size:30px;letter-spacing:.02em;color:var(--sun);user-select:all}

footer{padding-block:36px;font-size:14px;color:var(--muted)}
footer .wrap{display:grid;gap:14px}
footer h3{font-size:16px;color:var(--ink)}
.legal{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.social{display:flex;gap:10px;flex-wrap:wrap}
.social a{padding:7px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--ink)}

/* barre mobile fixe */
.mbar{display:none}
.call .short{display:none}
@media (max-width:820px){
  .hero .wrap,.zone .wrap,.partner,.lead-sec .wrap{grid-template-columns:1fr}
  .hero .wrap{padding-block:36px 44px;gap:28px}
  .logo-card{max-width:260px;justify-self:center;order:-1;transform:none}
  .offers{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .legal{grid-template-columns:1fr}
  .top .call span.long{display:none}
  .call .short{display:inline}
  section{padding-block:48px}
  body{padding-bottom:76px}
  .mbar{display:flex;gap:10px;position:fixed;left:0;right:0;bottom:0;z-index:9;background:var(--navy);padding:10px max(16px,env(safe-area-inset-right,0px)) calc(10px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
  .mbar a{flex:1}
}
@media (max-width:440px){.steps{grid-template-columns:1fr}}
@media (prefers-reduced-motion:no-preference){.logo-card{transition:transform .4s}.logo-card:hover{transform:rotate(0)}}

/* pied de page */
.legal p{line-height:1.5}
.flinks{display:flex;flex-wrap:wrap;gap:8px 18px}
.flinks a{color:var(--ink);text-underline-offset:3px}

/* FAQ : questions dépliables, lisibles sans script */
.faq{display:grid;gap:10px;max-width:780px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:0 18px}
.faq summary{cursor:pointer;list-style:none;padding:16px 28px 16px 0;font-weight:700;font-size:18px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:12px;font-family:var(--f-display);font-size:26px;color:var(--sun);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding-bottom:16px;color:var(--muted)}

/* pages de texte (mentions, confidentialité) */
.doc{padding-block:48px 64px}
.doc .wrap{max-width:760px}
.doc h1{font-size:clamp(32px,6vw,48px);font-weight:900;margin-bottom:8px}
.doc .upd{color:var(--muted);font-size:15px;margin-bottom:32px}
.doc h2{font-size:24px;margin:32px 0 10px}
.doc p,.doc li{color:var(--ink)}
.doc p+p{margin-top:10px}
.doc dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 18px;margin:0}
.doc dt{font-weight:700}
.doc dd{margin:0;min-width:0;overflow-wrap:anywhere}
.doc ul{padding-left:20px;display:grid;gap:6px}
.back{display:inline-block;margin-bottom:24px;color:var(--ink);text-underline-offset:3px}
@media (max-width:560px){.doc dl{grid-template-columns:1fr}.doc dd{margin-bottom:8px}}