/* EXADAO — design system "encre & bronze" */
:root{
  --ink:#14181c;--ink-2:#1b2127;--ink-3:#232a31;
  --paper:#f1f1ec;--paper-2:#e9e9e2;
  --slate:#586069;--slate-2:#7b828a;
  --line:#dcdbd3;--line-dark:rgba(255,255,255,.12);
  --bronze:#a9863f;--bronze-soft:#c4a259;--white:#fff;
  --serif:"Spectral",Georgia,serif;
  --sans:"Hanken Grotesk",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --maxw:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:500;letter-spacing:-.01em;line-height:1.12;margin:0}
p{margin:0}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 14px;z-index:99;border-radius:2px}
.eyebrow{font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--bronze);display:inline-flex;align-items:center;gap:.5em}
.eyebrow::before{content:"→";color:var(--bronze)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(20,24,28,.88);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line-dark)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;flex-direction:column;text-decoration:none;line-height:1.1}
.brand strong{font-family:var(--serif);font-weight:600;font-size:20px;color:#fff;letter-spacing:.02em}
.brand span{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate-2);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{font-size:14.5px;text-decoration:none;color:#c7ccd1;transition:color .2s}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:#fff}
.nav-cta{font-size:14px!important;color:var(--ink)!important;background:var(--bronze-soft);
  padding:9px 16px;border-radius:2px;font-weight:600}
.nav-cta:hover{background:#d4b46e}
.menu-toggle{display:none;background:none;border:1px solid var(--line-dark);color:#fff;
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  padding:8px 12px;border-radius:2px;cursor:pointer}

/* hero */
.hero{background:var(--ink);color:#eef0f2;padding:92px 0 100px;position:relative;overflow:hidden}
.hero::after,.hero::before{content:"";position:absolute;top:50%;transform:translateY(-50%);
  border:1px solid rgba(169,134,63,.15);border-radius:50%;pointer-events:none}
.hero::after{right:-140px;width:520px;height:520px}
.hero::before{right:-40px;width:320px;height:320px;border-color:rgba(169,134,63,.09)}
.hero .container{position:relative;z-index:2;max-width:920px}
.hero h1{font-size:clamp(33px,5vw,58px);color:#fff;margin:26px 0 0;max-width:16.5em}
.hero h1 .accent{color:var(--bronze-soft);font-style:italic;font-weight:400}
.hero-lead{font-size:clamp(17px,1.9vw,20px);color:#c3c9cf;max-width:41em;margin:26px 0 0;line-height:1.55}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.btn{display:inline-block;font-weight:600;font-size:15px;text-decoration:none;
  padding:13px 24px;border-radius:2px;transition:transform .15s,background .2s,border-color .2s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--bronze);color:#fff}
.btn-primary:hover{background:#b8944a}
.btn-outline{border:1px solid rgba(255,255,255,.28);color:#fff}
.btn-outline:hover{border-color:#fff}
.hero-note{margin-top:38px;padding-top:22px;border-top:1px solid var(--line-dark);
  font-family:var(--mono);font-size:13px;color:var(--slate-2);max-width:46em}
.hero-note b{color:#e7d6ac;font-weight:500}

/* metrics */
.metrics{background:var(--ink-2);border-top:1px solid var(--line-dark)}
.metrics-wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:32px 26px;border-right:1px solid var(--line-dark)}
.metric:last-child{border-right:none}
.metric strong{display:block;font-family:var(--serif);font-size:33px;color:#fff;letter-spacing:-.02em;font-weight:500}
.metric span{display:block;font-family:var(--mono);font-size:11.5px;line-height:1.5;color:var(--slate-2);margin-top:8px}

/* sections */
.section{padding:88px 0}
.section-head{max-width:60em;margin-bottom:48px}
.section-head h2{font-size:clamp(26px,3.4vw,38px);margin-top:16px}
.section-head p{color:var(--slate);font-size:18px;margin-top:16px;max-width:44em}
.band{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* offer */
.offer{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.offer-card{background:var(--white);border:1px solid var(--line);border-radius:3px;padding:32px 28px;
  display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.offer-card:hover{transform:translateY(-3px);box-shadow:0 18px 40px -24px rgba(20,24,28,.35)}
.offer-card .tag{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--slate-2)}
.offer-card.pointe{background:var(--ink);border-color:var(--ink)}
.offer-card.pointe .tag,.offer-card .pointe-badge{color:var(--bronze-soft)}
.offer-card.pointe h3{color:#fff}
.offer-card.pointe p{color:#c3c9cf}
.offer-card h3{font-size:22px;margin:14px 0 12px}
.offer-card p{color:var(--slate);font-size:15.5px;line-height:1.6}
.offer-card .pointe-badge{margin-top:auto;padding-top:18px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase}

/* signature chain */
.chain-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;margin-top:12px}
.node{background:var(--white);border:1px solid var(--line);border-radius:3px;padding:26px 22px;
  text-align:center;display:flex;flex-direction:column;justify-content:center}
.node .node-label{font-family:var(--serif);font-size:23px;font-weight:500}
.node .kpi{font-family:var(--mono);font-size:11.5px;line-height:1.5;color:var(--slate);margin-top:12px}
.node.mid{background:var(--ink);border-color:var(--ink);position:relative}
.node.mid .node-label{color:#fff}
.node.mid .kpi{color:var(--bronze-soft)}
.node.mid::before{content:"le maillon oublié";position:absolute;top:-11px;left:50%;transform:translateX(-50%);
  background:var(--bronze);color:#fff;font-family:var(--mono);font-size:10px;letter-spacing:.08em;
  text-transform:uppercase;padding:3px 10px;border-radius:2px;white-space:nowrap}
.arrow{display:flex;align-items:center;justify-content:center;padding:0 14px;color:var(--bronze);
  font-family:var(--serif);font-size:30px}
.chain-note{margin-top:34px;max-width:46em}
.chain-note .quote{font-family:var(--serif);font-style:italic;font-size:21px;line-height:1.4}
.chain-note p{color:var(--slate);margin-top:16px;font-size:16px}

/* flow steps */
.flow{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);
  border-radius:3px;overflow:hidden;background:var(--white)}
.step{padding:30px 26px;border-right:1px solid var(--line)}
.step:last-child{border-right:none}
.step .step-no{font-family:var(--mono);font-size:12px;color:var(--bronze);letter-spacing:.1em}
.step h3{font-size:20px;margin:14px 0 10px}
.step p{color:var(--slate);font-size:15px;line-height:1.55}

/* delivery */
.delivery{background:var(--ink);color:#eef0f2}
.delivery-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:52px;align-items:center}
.delivery h2{color:#fff;font-size:clamp(25px,3.2vw,36px);margin-top:16px}
.delivery .lead{color:#c3c9cf;font-size:18px;margin-top:18px;line-height:1.6;max-width:36em}
.delivery .anti{margin-top:22px;font-family:var(--mono);font-size:13px;color:var(--slate-2);line-height:1.7}
.delivery .anti b{color:#e7d6ac;font-weight:500}
.proofs{display:grid;gap:14px}
.proof{background:rgba(255,255,255,.05);border:1px solid var(--line-dark);border-radius:3px;padding:20px 22px}
.proof strong{display:block;font-family:var(--serif);font-size:19px;color:#fff;font-weight:500}
.proof span{display:block;font-family:var(--mono);font-size:12px;color:var(--slate-2);margin-top:8px;line-height:1.55}
@media (max-width:900px){.delivery-grid{grid-template-columns:1fr;gap:32px}}

/* cases */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case{background:var(--white);border:1px solid var(--line);border-radius:3px;padding:28px 26px}
.case .label{font-family:var(--mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--bronze)}
.case h3{font-size:20px;margin:12px 0 12px}
.case p{color:var(--slate);font-size:15px;line-height:1.6}
.cases-note{margin-top:26px;font-family:var(--mono);font-size:12.5px;color:var(--slate-2)}

/* parcours timeline */
.timeline{border-left:2px solid var(--line);margin-left:8px;padding-left:34px;display:grid;gap:34px}
.tl-item{position:relative}
.tl-item::before{content:"";position:absolute;left:-41px;top:8px;width:12px;height:12px;
  border-radius:50%;background:var(--paper);border:2px solid var(--bronze)}
.tl-item .tl-when{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--bronze);text-transform:uppercase}
.tl-item h3{font-size:20px;margin:8px 0 8px}
.tl-item p{color:var(--slate);font-size:15.5px;max-width:52em}

/* faq */
.faq{display:grid;gap:14px;max-width:820px}
.faq details{background:var(--white);border:1px solid var(--line);border-radius:3px;padding:0}
.faq summary{cursor:pointer;list-style:none;padding:20px 24px;font-family:var(--serif);
  font-size:19px;font-weight:500;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--bronze);font-size:20px;flex:none}
.faq details[open] summary::after{content:"–"}
.faq .faq-body{padding:0 24px 22px;color:var(--slate);font-size:15.5px;line-height:1.65}

/* about */
.about{background:var(--ink);color:#eef0f2}
.about-grid{display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:start}
.portrait{width:100%;aspect-ratio:4/5;background:linear-gradient(160deg,var(--ink-3),var(--ink-2));
  border:1px solid var(--line-dark);border-radius:4px;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:12px;color:var(--slate-2);text-align:center;padding:20px}
.portrait img{width:100%;height:100%;object-fit:cover;border-radius:4px}
.about-body h2{color:#fff;font-size:clamp(26px,3.2vw,36px)}
.about-body .lead{font-size:19px;color:#cdd2d7;margin-top:20px;line-height:1.5}
.about-body p{color:#aab1b8;margin-top:18px;font-size:16px;line-height:1.65}
.about-body .human{border-left:2px solid var(--bronze);padding-left:20px;margin-top:26px;
  color:#d7c9a6;font-style:italic;font-family:var(--serif);font-size:18px;line-height:1.5}
.about-list{list-style:none;padding:0;margin:26px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:10px 24px}
.about-list li{font-family:var(--mono);font-size:12.5px;color:#c7ccd1;padding-left:18px;position:relative}
.about-list li::before{content:"→";position:absolute;left:0;color:var(--bronze-soft)}

/* analyses list */
.article-list{display:grid;gap:22px;max-width:860px}
.article-list article{background:var(--white);border:1px solid var(--line);border-radius:3px;padding:28px 30px}
.article-list h2{font-size:23px;margin:10px 0 10px}
.article-list h2 a{text-decoration:none}
.article-list h2 a:hover{color:var(--bronze)}
.article-list p{color:var(--slate);font-size:15.5px}
.article-list .soon{opacity:.55}
.article-list .soon .tag-soon{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--slate-2);border:1px solid var(--line);padding:2px 8px;border-radius:2px;margin-left:10px}

/* article page */
.article-hero{background:var(--ink);color:#eef0f2;padding:72px 0 64px}
.article-hero h1{font-size:clamp(28px,4vw,44px);color:#fff;margin-top:20px;max-width:19em}
.article-hero .meta{font-family:var(--mono);font-size:12.5px;color:var(--slate-2);margin-top:22px}
.article-body{padding:64px 0 88px}
.article-body .prose{max-width:720px;font-size:17.5px;line-height:1.75}
.prose p{margin:0 0 22px}
.prose h2{font-size:26px;margin:40px 0 16px}
.prose .pull{border-left:2px solid var(--bronze);padding-left:22px;font-family:var(--serif);
  font-style:italic;font-size:21px;color:var(--ink);margin:32px 0}
.prose .chain-inline{font-family:var(--mono);font-size:14px;background:var(--paper-2);
  border:1px solid var(--line);border-radius:3px;padding:16px 20px;margin:26px 0;text-align:center}
.article-cta{margin-top:48px;padding-top:32px;border-top:1px solid var(--line);max-width:720px}
.article-cta p{color:var(--slate);font-size:15.5px}
.article-cta a{color:var(--bronze);font-weight:600}

/* cta */
.cta{background:var(--ink);border-radius:5px;padding:52px;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.cta h2{color:#fff;font-size:clamp(25px,3.2vw,34px);max-width:15em}
.cta p{color:#c3c9cf;margin-top:16px;font-size:16px;max-width:34em}
.cta-side{display:flex;flex-direction:column;gap:14px}
.cta-side a{font-family:var(--mono);font-size:13.5px;color:#e7d6ac;text-decoration:none}
.cta-side a:hover{color:#fff}
.cta-side .btn-primary{text-align:center;margin-top:6px;font-family:var(--sans)}

/* footer */
.site-footer{background:var(--ink-2);color:#9aa1a8;padding:40px 0 30px;border-top:1px solid var(--line-dark)}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.foot .brand strong{font-size:17px}
.foot-links{display:flex;gap:22px;font-family:var(--mono);font-size:12px;flex-wrap:wrap}
.foot-links a{color:#9aa1a8;text-decoration:none}
.foot-links a:hover{color:#fff}
.foot-bottom{margin-top:22px;padding-top:18px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;
  font-family:var(--mono);font-size:11.5px;color:var(--slate-2)}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* responsive */
@media (max-width:900px){
  .nav-links{position:fixed;inset:66px 0 auto 0;background:var(--ink);flex-direction:column;
    align-items:flex-start;gap:0;padding:8px 0;border-bottom:1px solid var(--line-dark);display:none}
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:14px 28px}
  .nav-cta{margin:8px 28px;display:inline-block}
  .menu-toggle{display:inline-block}
  .metrics-wrap{grid-template-columns:1fr 1fr}
  .metric{border-bottom:1px solid var(--line-dark)}
  .metric:nth-child(odd){border-right:1px solid var(--line-dark)}
  .metric:nth-child(even){border-right:none}
  .offer,.cases{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr 1fr}
  .step:nth-child(odd){border-right:1px solid var(--line)}
  .step{border-bottom:1px solid var(--line)}
  .chain-flow{grid-template-columns:1fr}
  .arrow{transform:rotate(90deg);padding:10px 0}
  .about-grid{grid-template-columns:1fr;gap:32px}
  .portrait{max-width:260px}
  .cta{grid-template-columns:1fr;padding:36px}
}
@media (max-width:520px){
  .about-list{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .step{border-right:none!important}
}