:root{--orange:#EA580C;--orange-d:#c4470a;--ink:#23262A;--slate:#1F3A5F;--slate2:#17293F;--deep:#0F1E30;
  --line:#E6E8EC;--soft:#F6F7F9;--grey:#6B7178;--sans:'Nunito',system-ui,sans-serif;--max:1460px;--pad:clamp(22px,4.5vw,64px)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:#fff;line-height:1.62;font-size:17px;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{line-height:1.12;font-weight:900;letter-spacing:-.018em;text-wrap:pretty}
p,li,dd{text-wrap:pretty}
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--pad)}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:12px 18px}

/* en-tete */
.ph{background:var(--deep);color:#fff}
.top{position:sticky;top:0;z-index:30;background:var(--deep);border-bottom:1px solid rgba(255,255,255,.09)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:15px}
.top a{text-decoration:none}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:900;font-size:21px}
.brand i{display:flex;align-items:center;justify-content:center;width:54px;height:54px;background:#fff;border-radius:50%;flex:0 0 auto}
.brand img{width:34px;height:auto;display:block}
.nav{display:flex;gap:clamp(24px,2.6vw,42px);font-weight:700;font-size:16.5px;color:#fff}
.nav a{padding-block:6px;border-bottom:2px solid transparent}
.nav a:hover{border-color:var(--orange)}
.burger{display:none;background:none;border:0;color:#fff;font:inherit;font-weight:700;font-size:16.5px;cursor:pointer}

/* tete de projet */
.ph .wrap.h{padding-block:clamp(44px,7vh,84px) clamp(48px,8vh,90px)}
.ph .back{display:inline-block;color:#c3d2e0;font-weight:700;font-size:15px;text-decoration:none;
          border-bottom:2px solid rgba(255,255,255,.3);padding-bottom:2px;margin-bottom:clamp(22px,3.5vh,36px)}
.ph .back:hover{color:#fff;border-color:#fff}
.ph h1{font-size:clamp(30px,3.8vw,54px);max-width:24ch}
.ph .lede{color:#d5e0ec;font-size:clamp(17px,1.3vw,20px);max-width:70ch;margin-top:18px}

/* visuel */
.visu{margin-top:clamp(-40px,-4vh,-30px);position:relative;z-index:2}
.visu img{width:100%;aspect-ratio:16/8;object-fit:cover;background:#dde3ea}
.visu .typo{aspect-ratio:16/7;background:var(--slate2);color:#fff;display:flex;align-items:flex-end;
            padding:clamp(26px,3vw,48px);font-weight:900;font-size:clamp(28px,4vw,60px);line-height:1;letter-spacing:-.03em}
.visu .cred{font-size:12.5px;color:#9aa3ad;margin-top:8px;text-align:right}

/* corps */
.fiche{display:grid;grid-template-columns:.38fr .62fr;gap:clamp(30px,5vw,90px);padding-block:clamp(48px,7vh,84px)}
.fiche>*{min-width:0}
.fiche dl{display:grid;gap:18px;border-top:1px solid var(--line);padding-top:22px}
.fiche dt{font-size:13.5px;font-weight:800;color:var(--grey)}
.fiche dd{font-size:17px;color:var(--ink);font-weight:700;margin-top:3px}
.fiche dd a{color:var(--ink);text-decoration:none;border-bottom:2px solid var(--orange)}
.fiche dd a:hover{color:var(--orange)}
.fiche h2{font-size:clamp(22px,2vw,30px);margin-bottom:16px}
.fiche .txt p{font-size:17.5px;max-width:66ch}
.fiche .txt p+p{margin-top:16px}
.fiche blockquote{margin-top:clamp(28px,4vh,44px);padding:clamp(20px,2.2vw,30px);background:var(--soft)}
.fiche blockquote p{font-size:16.5px;color:var(--ink);max-width:60ch}
.fiche blockquote footer{display:flex;align-items:center;gap:14px;margin-top:16px;background:none;padding:0;color:inherit;font-size:inherit}
.fiche blockquote footer img{max-height:42px;max-width:120px;height:auto;object-fit:contain}
.fiche blockquote footer span{font-size:14.5px;color:var(--grey);font-weight:800}

/* precedent, suivant */
.suite{border-top:1px solid var(--line);padding-block:clamp(30px,4.5vh,48px)}
.suite .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.suite a{text-decoration:none;color:var(--ink);max-width:44ch}
.suite a small{display:block;font-size:13.5px;color:var(--grey);font-weight:800;margin-bottom:4px}
.suite a b{font-size:17px;font-weight:900;border-bottom:2px solid transparent}
.suite a:hover b{border-color:var(--orange)}
.suite .next{text-align:right;margin-left:auto}

/* appel */
.cta{background:var(--slate2);color:#fff;padding-block:clamp(56px,8vh,96px)}
.cta h2{font-size:clamp(26px,3vw,42px);max-width:none}
.cta p{color:#c3d2e0;font-size:19px;max-width:66ch;margin-top:14px}
.acts{display:flex;align-items:center;gap:30px;flex-wrap:wrap;margin-top:30px}
.btn{background:var(--orange);color:#fff;font-weight:700;font-size:16px;padding:17px 30px;text-decoration:none;
     transition:background .2s;display:inline-block;border:0;font-family:inherit;cursor:pointer}
.btn:hover{background:var(--orange-d)}
.lnk{color:#fff;font-weight:700;font-size:16px;text-decoration:none;border-bottom:2px solid rgba(255,255,255,.4);padding-bottom:3px}
.lnk:hover{border-color:#fff}

/* pied */
footer{background:var(--deep);color:#9fb0c2;padding:clamp(50px,7vh,80px) 0 30px;font-size:15px}
footer a{color:#c9d3df}
.fg{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:40px}
.fg b{color:#fff;display:block;margin-bottom:13px;font-size:16px}
.fg nav{display:grid;gap:8px}
.fg p{max-width:44ch}
.legal{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
       display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13.5px}

@media (max-width:980px){
  .nav{display:none}.burger{display:block}
  .top .wrap{position:relative}
  .nav.open{display:grid;position:absolute;top:100%;right:var(--pad);background:var(--deep);padding:20px 24px;gap:14px;
            min-width:200px;z-index:30;border:1px solid rgba(255,255,255,.12)}
  .fiche,.fg{grid-template-columns:1fr}
  .visu img{aspect-ratio:16/10}
  .suite .next{text-align:left;margin-left:0}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* libelle reserve aux lecteurs d'ecran */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* CTA "Faire le diagnostic" : bouton fantome a remplissage circulaire au survol, identique au hero de l'accueil */
.btn-pill{position:relative;display:inline-flex;align-items:center;justify-content:center;
     padding:17px 30px;border:2px solid var(--orange);border-radius:2px;color:var(--orange);
     font-weight:700;font-size:16px;text-decoration:none;cursor:pointer;overflow:hidden;
     user-select:none;transition:border-color .3s,color .3s}
.btn-pill span{position:relative;z-index:1}
.btn-pill::before,.btn-pill::after{content:"";position:absolute;top:50%;width:9em;aspect-ratio:1;
     background:var(--orange);opacity:.55;border-radius:50%;transform:translateY(-50%);
     transition:transform .5s,background .3s}
.btn-pill::before{left:0;transform:translate(-8em,-50%)}
.btn-pill::after{right:0;transform:translate(8em,-50%)}
.btn-pill:hover{color:#fff}
.btn-pill:hover::before{transform:translate(-1em,-50%)}
.btn-pill:hover::after{transform:translate(1em,-50%)}
.btn-pill:active{border-color:var(--orange-d)}
.btn-pill:active::before,.btn-pill:active::after{background:var(--orange-d)}
@media (prefers-reduced-motion:reduce){.btn-pill::before,.btn-pill::after{transition:none}}