/* Prestation Drone : charte validée 27/08/2026
   Noir profond / or champagne / ivoire / lichen
   Site volontairement sombre (single-theme), toutes les couleurs explicites. */

:root{
  --bg:#0B0C0E;
  --bg-vert:#0D120E;      /* section démarche */
  --surface:#14161A;
  --surface2:#1B1E23;
  --ink:#EAE7E0;
  --ivoire:#F2EDE1;
  --muted:#A19C90;
  --line:rgba(234,231,224,.14);
  --gold:#C9A86A;
  --gold-soft:rgba(201,168,106,.35);
  --lichen:#93A583;
  --font-body:'Manrope',system-ui,-apple-system,sans-serif;
  --font-title:'Archivo',system-ui,sans-serif;
  --font-wm:'Cinzel',Georgia,serif;
  --font-mono:'IBM Plex Mono',ui-monospace,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
p{max-width:62ch}
h1,h2,h3{text-wrap:balance;margin:0}

.wrap{max-width:1160px;margin:0 auto;padding:0 28px}

.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--gold);
}
.meta{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted);
}

h2.section-title{
  font-family:var(--font-title);
  font-variation-settings:'wdth' 118;
  font-weight:640;
  font-size:clamp(28px,3.8vw,44px);
  line-height:1.08;
  margin:14px 0 22px;
  color:var(--ivoire);
}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:50;
  display:flex;justify-content:space-between;align-items:center;
  padding:18px 30px;
  background:linear-gradient(180deg,rgba(11,12,14,.85) 0%,rgba(11,12,14,0) 100%);
  transition:background .3s ease;
}
.site-header.scrolled{background:rgba(11,12,14,.92);border-bottom:1px solid var(--line)}
.wordmark{
  display:flex;align-items:center;gap:13px;text-decoration:none;
  font-family:var(--font-wm);font-weight:500;letter-spacing:.26em;
  font-size:14px;color:#EDE6D6;
}
.wordmark svg{flex:none}
.site-nav{display:flex;gap:26px;align-items:center;font-size:13.5px;letter-spacing:.04em}
.site-nav a{text-decoration:none;color:rgba(234,231,224,.85)}
.site-nav a:hover,.site-nav a:focus-visible{color:var(--gold)}
.site-nav a.btn{
  border:1px solid rgba(234,231,224,.5);padding:7px 16px;border-radius:2px;
}
.site-nav a.btn:hover,.site-nav a.btn:focus-visible{border-color:var(--gold);color:var(--gold)}
a:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:100svh;
  display:flex;flex-direction:column;justify-content:flex-end;
  overflow:hidden;
}
.hero picture,.hero picture img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,9,10,.55) 0%,rgba(8,9,10,.12) 35%,rgba(8,9,10,.85) 100%);
}
.hero-content{position:relative;z-index:2;padding:0 30px 56px;max-width:1160px;margin:0 auto;width:100%}
.hero h1{
  font-family:var(--font-title);
  font-variation-settings:'wdth' 118;
  font-weight:640;
  font-size:clamp(36px,5.6vw,68px);
  line-height:1.04;
  color:var(--ivoire);
  max-width:16ch;
}
.hero .sub{color:rgba(242,237,225,.85);margin:20px 0 30px;max-width:52ch;font-size:17.5px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.cta{
  display:inline-block;text-decoration:none;
  font-weight:600;font-size:14px;letter-spacing:.08em;text-transform:uppercase;
  color:#0B0C0E;background:var(--gold);padding:14px 30px;border-radius:2px;
  border:1px solid var(--gold);
}
.cta:hover{background:#D6B87E;border-color:#D6B87E}
.cta.ghost{background:transparent;color:var(--ivoire);border:1px solid rgba(234,231,224,.5)}
.cta.ghost:hover{border-color:var(--gold);color:var(--gold);background:transparent}
.hero-meta{position:relative;z-index:2;padding:0 30px 26px;max-width:1160px;margin:0 auto;width:100%}

/* ---------- sections ---------- */
section{padding:110px 0}
section.tight{padding:80px 0}

/* références */
.refs-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:56px;align-items:start}
.ref-group{border-top:1px solid var(--line);padding:22px 0}
.ref-group h3{
  font-family:var(--font-title);font-variation-settings:'wdth' 112;
  font-weight:600;font-size:19px;margin-bottom:8px;color:var(--ivoire);
}
.ref-group p{color:var(--muted);margin:0;font-size:15.5px}
.refs-photo{position:relative}
.refs-photo img{border-radius:4px;border:1px solid var(--line)}
.refs-photo figcaption{margin-top:12px}
.lieux{
  display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:34px;
  font-family:var(--font-wm);font-size:13.5px;letter-spacing:.22em;
  color:rgba(234,231,224,.66);text-transform:uppercase;
}
.lieux span{white-space:nowrap}
.lieux span::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--gold-soft);margin-right:12px;vertical-align:middle}

/* notre-dame */
.nd{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.nd-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.nd-date{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gold);margin-bottom:14px;
}
.nd h2{
  font-family:var(--font-title);font-variation-settings:'wdth' 118;font-weight:640;
  font-size:clamp(28px,3.6vw,42px);line-height:1.1;color:var(--ivoire);margin:0 0 18px;
}
.nd p{color:var(--muted)}
.nd-photo img{border-radius:4px;border:1px solid var(--line);width:100%}
.nd-photo figcaption{margin-top:12px}

/* services */
.svc-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:36px}
.svc-card{
  position:relative;border:1px solid var(--line);border-radius:6px;overflow:hidden;
  min-height:340px;display:flex;align-items:flex-end;
  background:var(--surface);
}
.svc-card picture,.svc-card picture img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.svc-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,9,10,.05) 25%,rgba(8,9,10,.88) 100%);
}
.svc-cap{position:relative;z-index:2;padding:24px 26px}
.svc-cap h3{
  font-family:var(--font-title);font-variation-settings:'wdth' 115;font-weight:620;
  font-size:21px;color:var(--ivoire);margin:0 0 8px;
}
.svc-cap p{font-size:14.5px;color:rgba(234,231,224,.78);margin:0;max-width:46ch}

/* regard */
.regard-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:56px;align-items:start}
.regard-grid blockquote{
  margin:26px 0 0;padding-left:22px;border-left:2px solid var(--gold);
  font-family:var(--font-title);font-variation-settings:'wdth' 112;font-weight:500;
  font-size:21px;color:var(--ivoire);line-height:1.4;max-width:26ch;
}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:22px}
.stat b{
  display:block;font-family:var(--font-title);font-variation-settings:'wdth' 120;
  font-weight:650;font-size:30px;color:var(--gold);font-variant-numeric:tabular-nums;
}
.stat span{font-size:13.5px;color:var(--muted)}

/* démarche */
.demarche{background:var(--bg-vert);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.demarche .eyebrow{color:var(--lichen)}
.dem-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.dem-list{list-style:none;padding:0;margin:26px 0 0}
.dem-list li{
  padding:16px 0;border-top:1px solid var(--line);color:var(--muted);font-size:15.5px;
}
.dem-list li:last-child{border-bottom:1px solid var(--line)}
.dem-list b{color:var(--ink);font-weight:600}
.dem-photo img{border-radius:4px;border:1px solid var(--line)}
.dem-photo figcaption{margin-top:12px}

/* faq */
.faq-list{margin-top:30px;border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;
  padding:22px 4px;font-family:var(--font-title);font-variation-settings:'wdth' 112;
  font-weight:600;font-size:17.5px;color:var(--ivoire);
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:"+";font-family:var(--font-mono);color:var(--gold);font-size:20px;flex:none;
  transition:transform .2s ease;
}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 4px 24px;color:var(--muted);font-size:15.5px}
.faq-body ul{margin:10px 0 0;padding-left:20px}
.faq-body li{margin-bottom:6px}
.faq-body b{color:var(--ink);font-weight:600}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:start;margin-top:10px}
.contact-direct .tel{
  display:block;font-family:var(--font-title);font-variation-settings:'wdth' 118;
  font-weight:650;font-size:clamp(26px,3vw,36px);color:var(--ivoire);
  text-decoration:none;margin:18px 0 6px;font-variant-numeric:tabular-nums;
}
.contact-direct .tel:hover{color:var(--gold)}
.contact-direct .mail{color:var(--gold);text-decoration:none;font-size:17px;word-break:break-all}
.contact-direct .mail:hover{text-decoration:underline}
.contact-direct p{color:var(--muted);font-size:15px}

form.contact{display:grid;gap:14px}
form.contact label{display:grid;gap:7px;font-size:13.5px;color:var(--muted)}
form.contact input,form.contact textarea{
  background:var(--surface);border:1px solid var(--line);border-radius:3px;
  color:var(--ink);font-family:var(--font-body);font-size:15.5px;
  padding:13px 14px;width:100%;
}
form.contact input:focus,form.contact textarea:focus{outline:none;border-color:var(--gold)}
form.contact textarea{min-height:140px;resize:vertical}
form.contact button{
  justify-self:start;cursor:pointer;
  font-family:var(--font-body);font-weight:600;font-size:14px;letter-spacing:.08em;text-transform:uppercase;
  color:#0B0C0E;background:var(--gold);border:1px solid var(--gold);border-radius:2px;
  padding:14px 30px;
}
form.contact button:hover{background:#D6B87E}
form.contact button:disabled{opacity:.55;cursor:wait}
.form-note{font-size:13px;color:var(--muted);margin:0}
.form-status{font-size:14.5px;margin:0;min-height:1.4em}
.form-status.ok{color:var(--lichen)}
.form-status.err{color:#D08A6A}
.hp-field{position:absolute;left:-9999px;top:auto;height:1px;width:1px;overflow:hidden}

/* footer */
footer{border-top:1px solid var(--line);padding:44px 0 60px;color:var(--muted);font-size:13.5px}
.foot-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:center}
footer a{color:var(--muted)}
footer a:hover{color:var(--gold)}
.foot-wm{display:flex;align-items:center;gap:11px;font-family:var(--font-wm);letter-spacing:.24em;font-size:12px;color:rgba(234,231,224,.7)}

/* reveals (progressive enhancement, neutralisés sans JS et en reduced-motion) */
@media (prefers-reduced-motion:no-preference){
  .js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
  .js .reveal.in{opacity:1;transform:none}
}

/* responsive */
@media (max-width:900px){
  .refs-grid,.nd-grid,.regard-grid,.dem-grid,.contact-grid{grid-template-columns:1fr;gap:36px}
  .svc-grid{grid-template-columns:1fr}
  .site-nav a:not(.btn){display:none}
  section{padding:76px 0}
  .stats{grid-template-columns:1fr 1fr}
  .refs-photo{max-width:420px}
}