:root {
  --bg: #faf8f5;
  --surface: #ffffff;
  --ink: #1c1b19;
  --muted: #5c5850;
  --line: #e4dfd6;
  --accent: #1f5c4d;
  --accent-ink: #ffffff;
  --accent-soft: #e6f0ec;
  --warn-soft: #f6efe0;
  --radius: 10px;
  --max: 68rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141412;
    --surface: #1d1c19;
    --ink: #efece6;
    --muted: #b0aa9f;
    --line: #35322c;
    --accent: #6bbfa6;
    --accent-ink: #0f1a16;
    --accent-soft: #1a2a25;
    --warn-soft: #2a261b;
  }
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.skip {
  position: absolute; left: -999px; top: 8px;
  background: var(--accent); color: var(--accent-ink);
  padding: 8px 14px; border-radius: 6px; z-index: 10;
}
.skip:focus { left: 8px; }

/* En-tête */
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap;
}
.brand {
  font-weight: 700; font-size: 1.35rem; letter-spacing: -0.02em;
  color: var(--ink); text-decoration: none;
}
.brand span { color: var(--accent); }
nav ul { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
nav a { color: var(--ink); text-decoration: none; font-size: 0.97rem; }
nav a:hover { text-decoration: underline; }

/* Boutons */
.btn {
  display: inline-block; padding: 12px 20px; border-radius: var(--radius);
  font-weight: 600; text-decoration: none; border: 2px solid var(--accent);
  background: var(--accent); color: var(--accent-ink);
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--accent); }

/* Hero */
.hero { padding: 64px 0 48px; }
.eyebrow {
  display: inline-block; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 14px;
}
h1 {
  font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.12;
  letter-spacing: -0.025em; margin: 0 0 18px; max-width: 22ch;
}
.lead { font-size: 1.2rem; color: var(--muted); max-width: 46rem; margin: 0 0 28px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* Sections */
section { padding: 44px 0; }
section + section { border-top: 1px solid var(--line); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -0.02em; margin: 0 0 10px; line-height: 1.2; }
.sub { color: var(--muted); max-width: 44rem; margin: 0 0 28px; }
h3 { font-size: 1.1rem; margin: 0 0 6px; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px;
}
.card p { margin: 0; color: var(--muted); font-size: 0.98rem; }

/* Étapes */
ol.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; gap: 14px; }
ol.steps li {
  counter-increment: s; display: grid; grid-template-columns: 44px 1fr; gap: 14px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px;
}
ol.steps li::before {
  content: counter(s); display: grid; place-items: center; width: 36px; height: 36px;
  border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 700;
}
ol.steps p { margin: 0; color: var(--muted); font-size: 0.98rem; }

/* Tableau d'exemple */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 34rem; font-size: 0.96rem; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
tr:last-child td { border-bottom: 0; }
.chip {
  display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.8rem;
  font-weight: 600; border: 1px solid currentColor; white-space: nowrap;
}
.chip.ok { color: var(--accent); }
.chip.part { color: #8a5a00; }
.chip.nok { color: #a3262a; }
.chip.nv { color: var(--muted); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .chip.part { color: #e0b254; }
  :root:not([data-theme="light"]) .chip.nok { color: #f08a8d; }
}
.caption { font-size: 0.9rem; color: var(--muted); margin: 10px 0 0; }

/* Encadré limites */
.notice {
  background: var(--warn-soft); border: 1px solid var(--line);
  border-left: 5px solid var(--accent); border-radius: var(--radius); padding: 20px 22px;
}
.notice ul { margin: 8px 0 0; padding-left: 1.2rem; }
.notice li { margin: 6px 0; }

/* Contact */
.contact-box {
  background: var(--accent-soft); border-radius: var(--radius); padding: 28px;
}
.contact-box p { margin: 0 0 16px; max-width: 40rem; }

/* Pages légales */
main.legal { padding: 40px 0 56px; max-width: 46rem; }
main.legal h1 { font-size: 2rem; max-width: none; }
main.legal h2 { font-size: 1.3rem; margin-top: 32px; }
main.legal dl { margin: 0; }
main.legal dt { font-weight: 600; margin-top: 14px; }
main.legal dd { margin: 2px 0 0; color: var(--muted); }
.todo { background: var(--warn-soft); padding: 1px 6px; border-radius: 4px; font-weight: 600; }

/* Pied de page */
footer.site { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 0.92rem; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer.site ul { display: flex; gap: 18px; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
footer.site a { color: var(--muted); }

@media (max-width: 560px) {
  .hero { padding-top: 40px; }
  ol.steps li { grid-template-columns: 1fr; }
  ol.steps li::before { margin-bottom: 2px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }