/* Opale — feuille de style unique, aucune ressource externe, aucune police tierce. */
:root {
  --bg: #ffffff;
  --fg: #1a1d21;
  --muted: #5b6470;
  --line: #e3e6ea;
  --accent: #2f6f6b;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --fg: #e8eaed;
    --muted: #9aa4b0;
    --line: #2a2f35;
    --accent: #6fb3ad;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  font-size: 17px;
}
.wrap { max-width: 46rem; margin: 0 auto; padding: 2.5rem 1.25rem 3rem; }
header { border-bottom: 1px solid var(--line); }
header .wrap { padding-bottom: 1.5rem; }
.brand { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; margin: 0; }
.brand a { color: var(--fg); text-decoration: none; }
.tagline { color: var(--muted); margin: 0.35rem 0 0; }
h1 { font-size: 1.75rem; line-height: 1.3; margin: 0 0 1rem; letter-spacing: -0.01em; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.6rem; }
h3 { font-size: 1rem; margin: 1.4rem 0 0.4rem; }
p, li { color: var(--fg); }
ul { padding-left: 1.25rem; }
li { margin: 0.3rem 0; }
a { color: var(--accent); }
.lead { font-size: 1.05rem; }
.meta { color: var(--muted); font-size: 0.9rem; }
.todo {
  background: #fff4e5;
  border-left: 3px solid #d98324;
  color: #6b4415;
  padding: 0.6rem 0.9rem;
  margin: 0.6rem 0;
  font-size: 0.95rem;
}
@media (prefers-color-scheme: dark) {
  .todo { background: #2e2415; color: #f0c98a; }
}
footer { border-top: 1px solid var(--line); margin-top: 3rem; }
footer .wrap { padding: 1.5rem 1.25rem; }
.footlinks { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; margin: 0 0 0.75rem; padding: 0; list-style: none; }
.footlinks a { text-decoration: none; }
.footlinks a:hover { text-decoration: underline; }