/* ACHAT Z — feuille de style unique. Aucune ressource externe. */
:root {
  --paper: #f6f4ef;
  --paper-2: #efece4;
  --ink: #161616;
  --ink-2: #3a3833;
  --muted: #6b675e;
  --line: #d9d4c8;
  --kraft: #9c5a2c;
  --ok: #2f6b3f;
  --study: #8a6a12;
  --max: 1120px;
  --font-display: "Avenir Next", Avenir, "Century Gothic", "Segoe UI", system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.65 var(--font-body);
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--kraft); }
:focus-visible { outline: 2px solid var(--kraft); outline-offset: 3px; }
.wrap { width: min(100% - 40px, var(--max)); margin-inline: auto; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 10; }

/* En-tête */
.top {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 24px; }
.brand { display: block; width: 116px; color: var(--ink); }
.nav { display: flex; align-items: center; gap: 28px; font-size: 15px; }
.nav a { text-decoration: none; color: var(--ink-2); }
.nav a:hover { color: var(--kraft); }
.nav .lang { border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; font-size: 13px; letter-spacing: .06em; }
@media (max-width: 760px) { .nav .opt { display: none; } .nav { gap: 16px; } }

/* Hero */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero .wrap { padding: clamp(64px, 11vw, 136px) 0 clamp(56px, 9vw, 112px); position: relative; }
.hero::before {
  /* rappel de la diagonale du Z */
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top right, transparent calc(50% - .5px), var(--line) 50%, transparent calc(50% + .5px));
  opacity: .9; pointer-events: none;
}
.eyebrow { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 0 0 22px; }
h1, h2, h3 { font-family: var(--font-display); color: var(--ink); }
h1 {
  font-size: clamp(36px, 6.4vw, 72px); line-height: 1.04; font-weight: 400;
  letter-spacing: -.02em; margin: 0 0 28px; max-width: 15ch;
}
.lead { font-size: clamp(18px, 2.1vw, 21px); color: var(--ink-2); max-width: 60ch; margin: 0 0 36px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; min-height: 48px; padding: 0 22px;
  border-radius: 2px; text-decoration: none; font-size: 16px; border: 1px solid var(--ink);
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--kraft); border-color: var(--kraft); color: #fff; }
.btn-ghost:hover { border-color: var(--kraft); }

.hero-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 48px; align-items: center; }
.hero-mark { width: 100%; opacity: .92; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } .hero-mark { display: none; } }

/* Sections */
section { border-bottom: 1px solid var(--line); }
section > .wrap { padding: clamp(56px, 8vw, 104px) 0; }
.kicker { display: flex; align-items: baseline; gap: 14px; margin-bottom: 18px; }
.num { font-family: var(--font-display); font-size: 14px; color: var(--kraft); letter-spacing: .08em; }
h2 { font-size: clamp(28px, 3.6vw, 40px); line-height: 1.15; font-weight: 500; letter-spacing: -.01em; margin: 0; }
h3 { font-size: 19px; font-weight: 600; margin: 0 0 8px; }
.split { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(32px, 6vw, 88px); align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.prose p { margin: 0 0 18px; color: var(--ink-2); }
.prose p:last-child { margin-bottom: 0; }
.note { font-size: 15px; color: var(--muted); }
.note.gap { margin-top: 18px; }

/* Statut */
.status {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 18px;
  font-size: 13px; letter-spacing: .04em; padding: 4px 12px 4px 10px;
  border: 1px solid currentColor; border-radius: 999px;
}
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.status.ok { color: var(--ok); }
.status.study { color: var(--study); }
.status.study::before { background: transparent; box-shadow: inset 0 0 0 1.5px currentColor; }

/* Faits */
.facts { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); margin: 40px 0 0; }
.facts div { padding: 20px 20px 22px 0; border-bottom: 1px solid var(--line); }
.facts div + div { padding-left: 20px; border-left: 1px solid var(--line); }
.facts div:nth-child(4n+1) { padding-left: 0; border-left: 0; }
.facts dt { font-size: 13px; color: var(--muted); letter-spacing: .04em; margin-bottom: 6px; }
.facts dd { margin: 0; font-size: 17px; line-height: 1.45; }
@media (max-width: 860px) {
  .facts { grid-template-columns: 1fr 1fr; }
  .facts div:nth-child(4n+1) { padding-left: 20px; border-left: 1px solid var(--line); }
  .facts div:nth-child(2n+1) { padding-left: 0; border-left: 0; }
}
@media (max-width: 480px) {
  .facts { grid-template-columns: 1fr; }
  .facts div, .facts div + div { padding-left: 0; border-left: 0; }
}
.verify { margin-top: 22px; font-size: 15px; color: var(--muted); }

/* Trois volets */
.tracks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--ink); margin-top: 40px; }
.track { padding: 26px 26px 30px 0; }
.track + .track { padding-left: 26px; border-left: 1px solid var(--line); }
.track p { margin: 0; color: var(--ink-2); font-size: 16px; }
@media (max-width: 860px) {
  .tracks { grid-template-columns: 1fr; }
  .track, .track + .track { padding: 24px 0; border-left: 0; border-bottom: 1px solid var(--line); }
}

/* Listes */
.ticks { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.ticks li { padding: 14px 0 14px 30px; border-bottom: 1px solid var(--line); position: relative; }
.ticks li::before {
  content: ""; position: absolute; left: 2px; top: 23px; width: 14px; height: 1.5px; background: var(--kraft);
  transform: rotate(-24deg);
}
.domains { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 32px; }
@media (max-width: 560px) { .domains { grid-template-columns: 1fr; } }

.panel { background: var(--paper-2); border: 1px solid var(--line); padding: clamp(22px, 3vw, 32px); margin-top: 32px; }
.panel h3 { font-size: 16px; letter-spacing: .02em; }
.panel p { margin: 0 0 10px; font-size: 16px; color: var(--ink-2); }
.panel p:last-child { margin-bottom: 0; }

/* Repères */
.timeline { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--ink); }
.timeline li { position: relative; padding: 0 0 26px 24px; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before { content: ""; position: absolute; left: -5px; top: 9px; width: 9px; height: 9px; background: var(--paper); border: 1px solid var(--ink); }
.timeline time { display: block; font-size: 13px; letter-spacing: .06em; color: var(--muted); text-transform: uppercase; }

/* Contact */
.contact { background: var(--ink); color: var(--paper); border-bottom: 0; }
.contact h2 { color: var(--paper); }
.contact .num { color: #d39a6c; }
.contact p { color: #cfcac0; max-width: 56ch; }
.mail {
  display: inline-block; margin-top: 18px; font-family: var(--font-display);
  font-size: clamp(24px, 4.6vw, 44px); color: var(--paper); text-decoration: none;
  border-bottom: 1px solid #6d6a63; padding-bottom: 4px; word-break: break-all;
}
.mail:hover { color: #e3b48c; border-color: #e3b48c; }

/* Pied de page */
footer { background: var(--ink); color: #a9a499; font-size: 14px; }
footer .wrap { border-top: 1px solid #3a3833; padding: 28px 0 36px; display: grid; gap: 14px; }
footer .row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 28px; }
footer a { color: #d8d3c9; }
footer .legal-links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
footer .disclaimer { font-size: 13px; color: #8a857b; max-width: 90ch; }

/* Pages légales */
.doc > .wrap { max-width: 780px; padding: clamp(48px, 7vw, 88px) 0; }
.doc h1 { font-size: clamp(32px, 5vw, 48px); max-width: none; }
.doc h2 { font-size: 22px; margin: 40px 0 10px; }
.doc p, .doc li { color: var(--ink-2); }
.doc address { font-style: normal; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print { .top, .hero::before { display: none; } body { background: #fff; } }