/* Ino-Vita AI — feuille unique. Puriste : une famille, trois tons, filets, vide.
   2026-09-03 */

:root{
  --paper:#faf9f7;
  --ink:#15171a;
  --accent:#b23c00;
  --ink-70:#4b4f55;
  --line:#d9d6d1;
  --line-soft:#e7e4df;
  --underline:#bdb9b2;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#0e1013;
    --ink:#e9e7e2;
    --accent:#ff8a4c;
    --ink-70:#a1a5ab;
    --line:#2a2e34;
    --line-soft:#1c2025;
    --underline:#565b62;
    color-scheme:dark;
  }
}

*,*::before,*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"IBM Plex Sans","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:17.5px;
  line-height:1.6;
  font-weight:400;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}

.wrap{
  width:100%;
  max-width:1040px;
  margin:0 auto;
  padding:0 28px;
}
.measure{ max-width:62ch; }

/* ---- rythme des sections ---- */
section{ padding:88px 0; border-top:1px solid var(--line-soft); }
section:first-of-type{ border-top:0; }

/* ---- typographie ---- */
h1,h2,h3{ font-weight:500; letter-spacing:-.015em; text-wrap:balance; margin:0; }
h1{ font-size:clamp(30px,5.2vw,52px); line-height:1.12; }
h2{ font-size:clamp(23px,3vw,31px); line-height:1.2; }
h3{ font-size:18px; line-height:1.35; letter-spacing:0; }
p{ margin:0; }
.lede{ font-size:19px; color:var(--ink-70); line-height:1.55; }
.muted{ color:var(--ink-70); }
.small{ font-size:15px; }
.tiny{ font-size:13.5px; line-height:1.55; color:var(--ink-70); }
.label{
  font-size:12.5px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ink-70); font-weight:500;
}
.stack>*+*{ margin-top:16px; }
.stack-lg>*+*{ margin-top:28px; }

/* ---- liens ---- */
a{ color:inherit; text-decoration:none; }
a.u{
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:4px;
  text-decoration-color:var(--underline);
}
a.u:hover{ color:var(--accent); text-decoration-color:var(--accent); }
a:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; }
.accent{ color:var(--accent); }

.links{ display:flex; flex-wrap:wrap; gap:12px 32px; align-items:baseline; }
.links a{ font-size:17.5px; }

/* ---- en-tête / pied ---- */
.masthead{
  border-bottom:1px solid var(--line-soft);
}
.masthead .row,.foot .row{
  display:flex; align-items:baseline; justify-content:space-between; gap:24px;
  padding:22px 0;
}
.mark{ font-weight:500; letter-spacing:-.01em; font-size:17px; }
.mark .ai{ color:var(--accent); }
.lang{ font-size:13px; letter-spacing:.12em; text-transform:uppercase; }

.foot{ border-top:1px solid var(--line-soft); }
.foot .row{ padding:28px 0 12px; flex-wrap:wrap; }
.foot .end{ padding-bottom:48px; }
.footlinks{ display:flex; flex-wrap:wrap; gap:8px 24px; font-size:14px; }

/* ---- hero ---- */
.hero{ padding:104px 0 88px; }
.hero h1{ max-width:24ch; }

/* ---- les trois cas ---- */
.cases{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0 40px;
  margin-top:44px;
}
.case{ border-top:1px solid var(--line); padding-top:20px; }
.case h3{ margin-bottom:14px; }
.case p{ font-size:16px; color:var(--ink-70); }
.figs{ margin:0 0 16px; }
.fig{
  display:flex; justify-content:space-between; gap:16px;
  padding:6px 0; border-bottom:1px solid var(--line-soft);
  font-size:15.5px;
}
.fig dt{ color:var(--ink-70); }
.fig dd{ margin:0; font-weight:500; white-space:nowrap; }
.fig.gap dd{ color:var(--accent); }

/* ---- règle du GO ---- */
.rule-line{ font-size:clamp(24px,3.4vw,36px); line-height:1.22; letter-spacing:-.015em; font-weight:500; text-wrap:balance; max-width:26ch; }
.threes{ display:grid; grid-template-columns:repeat(3,1fr); gap:0 40px; margin-top:44px; }
.threes>div{ border-top:1px solid var(--line); padding-top:16px; font-size:16px; color:var(--ink-70); }
.threes strong{ display:block; color:var(--ink); font-weight:500; margin-bottom:4px; }

/* ---- facts ---- */
.facts{ margin-top:36px; display:grid; grid-template-columns:repeat(2,1fr); gap:0 40px; }
.facts>div{ border-top:1px solid var(--line-soft); padding:14px 0; display:flex; justify-content:space-between; gap:24px; font-size:16px; }
.facts dt,.facts .k{ color:var(--ink-70); }
.facts .v{ text-align:right; }

/* ---- vidéo ---- */
.videowrap{ margin-top:36px; }
video{
  display:block; width:100%; max-width:960px; height:auto;
  background:#000; border:1px solid var(--line);
}

/* ---- pages légales (contenu conservé) ---- */
.note{
  border-left:2px solid var(--accent);
  padding:2px 0 2px 18px;
  font-size:15px; color:var(--ink-70);
  margin:0 0 32px;
}
main.doc{ padding:56px 0 24px; }
main.doc h1{ font-size:clamp(27px,4vw,38px); margin-bottom:8px; }
main.doc h2{ font-size:20px; margin:44px 0 12px; }
main.doc p,main.doc li{ font-size:16.5px; }
main.doc p+p{ margin-top:12px; }
main.doc ul{ padding-left:20px; margin:12px 0; }
main.doc li+li{ margin-top:6px; }
main.doc p,main.doc li,main.doc .note,main.doc .updated{ max-width:68ch; }
main.doc a{ text-decoration:underline; text-decoration-thickness:1px;
  text-underline-offset:4px; text-decoration-color:var(--underline); }
main.doc a:hover{ color:var(--accent); text-decoration-color:var(--accent); }
mark{ background:transparent; color:var(--accent); font-weight:500; }
main.doc table{ border-collapse:collapse; width:100%; margin:16px 0; font-size:15.5px; }
main.doc th,main.doc td{ text-align:left; border-bottom:1px solid var(--line-soft); padding:8px 12px 8px 0; vertical-align:top; }
main.doc th{ font-weight:500; color:var(--ink-70); }

.updated{ color:var(--ink-70); font-size:15px; margin-top:6px; }
.skip{ position:absolute; width:1px; height:1px; padding:0; margin:0; overflow:hidden;
  clip:rect(0 0 0 0); clip-path:inset(50%); white-space:nowrap; border:0; }
.skip:focus{ position:static; width:auto; height:auto; overflow:visible; clip:auto;
  clip-path:none; display:inline-block; margin:12px 0 0 28px; }

/* ---- petites largeurs ---- */
@media (max-width:820px){
  .cases,.threes,.facts{ grid-template-columns:1fr; gap:0; }
  .facts>div{ flex-direction:column; gap:2px; }
  .facts .v{ text-align:left; }
  .case,.threes>div{ margin-top:28px; }
  .cases .case:first-child,.threes>div:first-child{ margin-top:0; }
}
@media (max-width:560px){
  body{ font-size:16.5px; }
  .wrap{ padding:0 20px; }
  section{ padding:64px 0; }
  .hero{ padding:72px 0 64px; }
  .fig{ font-size:15px; }
}