:root{
  --ink:#1f2d33; --muted:#5d6f77; --line:#e3ece9; --bg:#ffffff; --soft:#f3f8f6;
  --brand:#2f7d6d; --brand-soft:#dcefe9; --accent:#e9a23b; --accent-soft:#fbefd9;
  --radius:14px; --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px}
a{color:var(--brand)}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
/* header */
.top{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;letter-spacing:.2px}
.logo .mark{width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:800}
.logo small{display:block;font-weight:500;color:var(--muted);font-size:12px;line-height:1.1}
nav ul{list-style:none;display:flex;gap:20px;margin:0;padding:0;flex-wrap:wrap}
nav a{text-decoration:none;color:var(--ink);font-size:15px}
nav a:hover{color:var(--brand)}
.btn{display:inline-block;background:var(--brand);color:#fff!important;text-decoration:none;padding:12px 20px;border-radius:999px;font-weight:600;font-size:15px;border:0;cursor:pointer}
.btn.ghost{background:transparent;color:var(--brand)!important;border:1.5px solid var(--brand)}
.btn.small{padding:9px 16px;font-size:14px}
.menu-toggle{display:none}
@media (max-width:900px){
  nav{display:none} nav.open{display:block;position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:14px 22px}
  nav.open ul{flex-direction:column;gap:12px}
  .menu-toggle{display:inline-block;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:15px}
  .top .cta-top{display:none}
}
/* hero */
.hero{background:linear-gradient(180deg,var(--soft),#fff);padding:72px 0 56px}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.15;margin:0 0 16px;letter-spacing:-.4px}
.hero p.lead{font-size:19px;color:var(--muted);max-width:720px;margin:0 0 26px}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.badge{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:14px;color:var(--muted)}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:14px}
.crumbs a{color:var(--muted)}
/* sections */
section{padding:56px 0}
section.alt{background:var(--soft)}
h2{font-size:clamp(24px,2.8vw,32px);line-height:1.25;margin:0 0 14px;letter-spacing:-.2px}
h3{font-size:20px;margin:26px 0 8px}
.intro{color:var(--muted);max-width:760px;margin-bottom:28px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:repeat(3,1fr)} .g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card h3{margin-top:0}
.card .tag{display:inline-block;background:var(--brand-soft);color:var(--brand);border-radius:999px;padding:3px 10px;font-size:13px;font-weight:600;margin-bottom:10px}
.card a.more{font-weight:600;text-decoration:none}
.steps{counter-reset:s;display:grid;gap:16px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 20px 20px 70px;position:relative}
.step:before{counter-increment:s;content:counter(s);position:absolute;left:20px;top:20px;width:34px;height:34px;border-radius:50%;background:var(--accent-soft);color:#9a5b05;display:grid;place-items:center;font-weight:700}
.step h3{margin:0 0 4px;font-size:18px}
.prose{max-width:780px}
.prose ul{padding-left:20px} .prose li{margin:6px 0}
.note{background:var(--accent-soft);border-radius:var(--radius);padding:16px 20px;color:#5b4210;font-size:15.5px}
.cta-band{background:var(--brand);color:#fff;border-radius:22px;padding:38px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0 0 6px} .cta-band p{margin:0;opacity:.9}
.cta-band .btn{background:#fff;color:var(--brand)!important}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600}
details p{margin:10px 0 2px;color:var(--muted)}
table{border-collapse:collapse;width:100%;font-size:15.5px}
td,th{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:600}
.cities{columns:3;column-gap:24px;padding-left:18px} @media (max-width:700px){.cities{columns:2}}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px} @media (max-width:700px){form .row{grid-template-columns:1fr}}
label{display:block;font-size:14px;color:var(--muted);margin:10px 0 4px}
input,select,textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:16px;background:#fff}
textarea{min-height:120px}
/* footer */
footer{border-top:1px solid var(--line);padding:44px 0 30px;font-size:15px;color:var(--muted);margin-top:30px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
@media (max-width:900px){footer .cols{grid-template-columns:1fr 1fr}}
footer h4{color:var(--ink);font-size:15px;margin:0 0 10px}
footer ul{list-style:none;padding:0;margin:0} footer li{margin:6px 0}
footer a{color:var(--muted);text-decoration:none} footer a:hover{color:var(--brand)}
.legal{border-top:1px solid var(--line);margin-top:28px;padding-top:16px;font-size:13.5px}
.preview-bar{background:#fff4d6;color:#6b4e00;text-align:center;font-size:13.5px;padding:6px 10px}
/* hero vidéo (accueil) */
.hero-video{position:relative;overflow:hidden;min-height:78vh;display:flex;align-items:center;background:#20302c;padding:110px 0 90px}
.hero-video video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-video .veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,30,26,.72) 0%,rgba(15,30,26,.45) 55%,rgba(15,30,26,.2) 100%)}
.hero-video .wrap{position:relative;z-index:2;width:100%}
.hero-video h1{color:#fff;max-width:760px;text-shadow:0 2px 18px rgba(0,0,0,.25)}
.hero-video p.lead{color:rgba(255,255,255,.9)}
.hero-video .btn.ghost{color:#fff!important;border-color:rgba(255,255,255,.8)}
.hero-video .badge{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.3);color:#fff;backdrop-filter:blur(4px)}
@media (prefers-reduced-motion:reduce){.hero-video video{display:none}}
/* diaporama animé / fond animé provisoire */
.hero-video .slides{position:absolute;inset:0}
.hero-video .slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;animation-name:kb;animation-iteration-count:infinite;animation-timing-function:linear}
@keyframes kb{0%{opacity:0;transform:scale(1)}6%{opacity:1}33%{opacity:1}40%{opacity:0;transform:scale(1.12)}100%{opacity:0}}
.aurora{background:radial-gradient(60% 80% at 20% 30%,#3f8f7d 0%,transparent 60%),radial-gradient(50% 70% at 80% 60%,#e9a23b55 0%,transparent 60%),radial-gradient(70% 90% at 60% 10%,#2c5f73 0%,transparent 65%),#1d332e;background-size:160% 160%;animation:aur 18s ease-in-out infinite alternate}
@keyframes aur{0%{background-position:0% 0%}100%{background-position:100% 100%}}
/* en-tête compact */
.logo>span:last-child{white-space:nowrap;font-size:15.5px}
nav ul{flex-wrap:nowrap;gap:18px} nav a{white-space:nowrap;font-size:14.5px}
.top .cta-top{white-space:nowrap}
@media (max-width:1180px){nav{display:none} nav.open{display:block;position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:14px 22px} nav.open ul{flex-direction:column;gap:12px} .menu-toggle{display:inline-block;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:15px}}
.logo img{height:46px;width:auto;display:block}
/* couleurs alignées sur le logo CHE (orange / jaune) */
:root{--brand:#d4691a;--brand-soft:#fdebdc;--accent:#f2b927;--accent-soft:#fdf4d9;--soft:#fbf7f2}
.hero-video .veil{background:linear-gradient(90deg,rgba(40,24,10,.72) 0%,rgba(40,24,10,.45) 55%,rgba(40,24,10,.2) 100%)}
.aurora{background:radial-gradient(60% 80% at 20% 30%,#d4691a 0%,transparent 60%),radial-gradient(50% 70% at 80% 60%,#f2b92766 0%,transparent 60%),radial-gradient(70% 90% at 60% 10%,#7a3d12 0%,transparent 65%),#2a1a0e;background-size:160% 160%}
/* barre d'appel mobile */
.callbar{display:none}
@media (max-width:900px){.callbar{display:block;position:fixed;left:0;right:0;bottom:0;z-index:50;background:var(--brand);color:#fff!important;text-align:center;font-weight:700;padding:14px 10px;text-decoration:none;box-shadow:0 -4px 16px rgba(0,0,0,.15)} body{padding-bottom:56px}}