/* ============================================================
   site.css — Quentin Guittard
   « L'architecture de votre sérénité. »
   Shared across all public pages (page-*.html).
   ============================================================ */

/* TOKENS */
:root{
  --paper:#F4F2ED; --snow:#FBFAF8; --mist:#E8E6E0;
  --ink:#14130F; --graphite:#615D55;
  --line:rgba(20,19,15,0.12);
  --glass-d:rgba(18,17,13,0.46); --glass-l:rgba(251,250,248,0.14);
  --shadow:0 1px 3px rgba(20,19,15,0.04),0 8px 30px rgba(20,19,15,0.07);
  --shadow-hover:0 2px 8px rgba(20,19,15,0.06),0 18px 48px rgba(20,19,15,0.10);
  --r-s:14px; --r-m:20px; --r-l:28px;
  --pad:clamp(24px,5vw,72px);
  --content-w:1100px;
  --display:'Bricolage Grotesque',-apple-system,'Segoe UI',sans-serif;
  --body:'Hanken Grotesk',-apple-system,'Segoe UI',sans-serif;
}
body.page-wide{--content-w:1320px;}
body.page-narrow{--content-w:720px;}

/* RESET */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-font-smoothing:antialiased;scroll-behavior:smooth;}
body{font-family:var(--body);background:var(--paper);color:var(--ink);line-height:1.65;overflow-x:hidden;}
a{color:inherit;text-decoration:none;}
a.inl{color:var(--ink);border-bottom:1px solid var(--ink);transition:opacity .2s ease;}
a.inl:hover{opacity:.7;}
img,svg{display:block;}
.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;}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:2px;}
.on-photo :focus-visible,.nav-glass :focus-visible,.on-dark :focus-visible{outline-color:#FBFAF8;}

/* TYPE */
.display{font-family:var(--display);font-weight:300;letter-spacing:-0.03em;line-height:1.04;}
h1{font-family:var(--display);font-weight:300;letter-spacing:-0.03em;line-height:1.02;}
h2{font-family:var(--display);font-weight:400;letter-spacing:-0.022em;line-height:1.1;}
h3{font-family:var(--display);font-weight:400;letter-spacing:-0.015em;line-height:1.18;}
.eyebrow{font-family:var(--body);font-size:11px;font-weight:600;letter-spacing:0.16em;text-transform:uppercase;color:var(--graphite);}
.numeral{font-family:var(--body);font-size:12px;font-weight:600;letter-spacing:0.22em;text-transform:uppercase;color:var(--graphite);opacity:.7;}
.lede{font-size:clamp(15px,1.4vw,17px);line-height:1.7;color:var(--graphite);max-width:62ch;}

/* NAV — default (solid paper) */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:20px var(--pad);transition:background .3s ease,backdrop-filter .3s ease,padding .3s ease,border-color .3s ease;
  background:rgba(244,242,237,0.86);backdrop-filter:blur(16px) saturate(150%);-webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--line);}
.nav.scrolled{padding-top:14px;padding-bottom:14px;}
.brand{font-family:var(--display);font-weight:400;font-size:19px;letter-spacing:-0.01em;color:var(--ink);transition:color .3s ease;}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-link{font-size:12px;font-weight:500;letter-spacing:0.08em;text-transform:uppercase;color:var(--graphite);transition:color .2s ease;}
.nav-link:hover,.nav-link.active{color:var(--ink);}

/* NAV — on-photo variant (homepage hero only) */
body.page-on-photo .nav{background:var(--glass-l);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(251,250,248,0.18);}
body.page-on-photo .nav .brand{color:#FBFAF8;}
body.page-on-photo .nav .nav-link{color:rgba(251,250,248,0.78);}
body.page-on-photo .nav .nav-link:hover,
body.page-on-photo .nav .nav-link.active{color:#FBFAF8;}
body.page-on-photo .nav .nav-toggle svg{stroke:#FBFAF8;}
body.page-on-photo .nav.scrolled{background:rgba(244,242,237,0.86);backdrop-filter:blur(16px) saturate(150%);-webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--line);}
body.page-on-photo .nav.scrolled .brand{color:var(--ink);}
body.page-on-photo .nav.scrolled .nav-link{color:var(--graphite);}
body.page-on-photo .nav.scrolled .nav-link:hover,
body.page-on-photo .nav.scrolled .nav-link.active{color:var(--ink);}
body.page-on-photo .nav.scrolled .nav-toggle svg{stroke:var(--ink);}
body.page-on-photo .nav .pill-glass{background:rgba(251,250,248,0.16);border:1px solid rgba(251,250,248,0.5);color:#FBFAF8;}
body.page-on-photo .nav .pill-glass:hover{background:#FBFAF8;color:var(--ink);}
body.page-on-photo .nav.scrolled .pill-glass{background:var(--ink);color:var(--paper);border-color:var(--ink);}
body.page-on-photo .nav.scrolled .pill-glass:hover{background:var(--ink);color:var(--paper);}

/* PILL — boutons (toutes variantes) */
.pill{display:inline-flex;align-items:center;gap:10px;font-family:var(--body);font-size:12px;font-weight:600;
  letter-spacing:0.06em;text-transform:uppercase;padding:13px 24px;border-radius:999px;
  background:var(--ink);color:var(--paper);border:1px solid var(--ink);cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;}
.pill:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(20,19,15,0.22);}
.pill .arr{transition:transform .2s ease;}
.pill:hover .arr{transform:translate(2px,-2px);}
.pill-glass{background:rgba(251,250,248,0.16);border:1px solid rgba(251,250,248,0.5);color:#FBFAF8;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);}
.pill-glass:hover{background:#FBFAF8;color:var(--ink);}
.pill-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.pill-ghost:hover{background:var(--ink);color:var(--paper);}
.pill-light{background:var(--paper);color:var(--ink);border-color:var(--paper);}
.pill-light:hover{background:var(--mist);color:var(--ink);border-color:var(--mist);}

/* NAV TOGGLE — mobile */
.nav-toggle{display:none;width:46px;height:46px;background:none;border:0;cursor:pointer;align-items:center;justify-content:center;}
.nav-toggle svg{width:24px;height:24px;stroke:var(--ink);}

/* MOBILE MENU */
.mobile{position:fixed;inset:0;z-index:99;background:var(--ink);display:flex;flex-direction:column;justify-content:center;gap:6px;
  padding:96px var(--pad) 48px;transform:translateX(100%);transition:transform .4s cubic-bezier(.16,1,.3,1);}
.mobile.open{transform:translateX(0);}
.mobile a{font-family:var(--display);font-weight:300;font-size:clamp(28px,7vw,40px);color:rgba(251,250,248,0.72);
  padding:14px 0;border-bottom:1px solid rgba(251,250,248,0.1);letter-spacing:-0.02em;}
.mobile a.cta{color:var(--paper);border-bottom:none;margin-top:24px;font-size:14px;font-family:var(--body);
  font-weight:600;letter-spacing:0.1em;text-transform:uppercase;}

/* FOOTER */
.footer{background:var(--ink);color:var(--paper);padding:clamp(40px,6vw,72px) var(--pad);}
.footer-top{max-width:var(--content-w);margin:0 auto;display:flex;justify-content:space-between;align-items:flex-end;
  gap:32px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid rgba(251,250,248,0.12);}
.footer-brand{font-family:var(--display);font-weight:300;font-size:clamp(28px,4vw,46px);letter-spacing:-0.02em;max-width:14ch;}
.footer-bottom{max-width:var(--content-w);margin:0 auto;padding-top:28px;display:flex;justify-content:space-between;
  gap:24px;flex-wrap:wrap;font-size:12px;color:rgba(251,250,248,0.55);}
.footer-bottom a{color:rgba(251,250,248,0.55);transition:color .2s;}
.footer-bottom a:hover{color:var(--paper);}
.footer-soc{display:flex;gap:22px;}

/* REVEAL */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1);}
.reveal.in{opacity:1;transform:none;}
.d1{transition-delay:.08s}
.d2{transition-delay:.16s}
.d3{transition-delay:.24s}

/* RESPONSIVE — partagé */
@media (max-width:960px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
}
@media (max-width:620px){
  .footer-top{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms!important;}
}