:root {
  --fond: #fafaf9;
  --texte: #1c1917;
  --discret: #57534e;
  --bord: #e7e5e4;
  --accent: #1d4ed8;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fond: #1c1917;
    --texte: #f5f5f4;
    --discret: #a8a29e;
    --bord: #44403c;
    --accent: #93c5fd;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--fond);
  color: var(--texte);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 42rem; margin: 0 auto; padding: 3rem 1.25rem; }
h1 { font-size: 1.75rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 0.5rem; }
p, li { color: var(--discret); }
a { color: var(--accent); }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--bord); font-size: 0.875rem; color: var(--discret); }
.champ { margin: 1rem 0; }
.champ label { display: block; font-size: 0.875rem; font-weight: 600; margin-bottom: 0.25rem; }
.valeur { display: flex; gap: 0.5rem; }
.valeur code {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--bord);
  border-radius: 0.375rem;
  font: 0.875rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
}
button {
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--bord);
  border-radius: 0.375rem;
  background: var(--texte);
  color: var(--fond);
  font: inherit;
  font-size: 0.875rem;
  cursor: pointer;
}
.vide { padding: 0.75rem 1rem; border: 1px dashed var(--bord); border-radius: 0.375rem; }