:root {
  --fond: #f4f6f3;
  --carte: #ffffff;
  --texte: #1f2a24;
  --discret: #5f6b64;
  --bord: #dde3dd;
  --accent: #1f7a4d;
  --accent-fonce: #155c39;
  --accent-clair: #e6f2ea;
  --erreur: #b3261e;
  --erreur-clair: #fbeae9;
  --info-clair: #eaf1f8;
  --rayon: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fond: #121714;
    --carte: #1b221e;
    --texte: #e5ece7;
    --discret: #9fada5;
    --bord: #2e3833;
    --accent: #4cb880;
    --accent-fonce: #6fd09d;
    --accent-clair: #1d3328;
    --erreur: #f2817a;
    --erreur-clair: #3a1f1d;
    --info-clair: #1c2833;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--fond);
  color: var(--texte);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
.conteneur { max-width: 960px; margin: 0 auto; padding: 0 16px; }

/* Bandeau */
.bandeau { background: var(--accent); color: #fff; padding: 20px 0 18px; }
.bandeau h1 { margin: 2px 0 4px; font-size: 1.45rem; line-height: 1.25; overflow-wrap: anywhere; }
.sur-titre { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; opacity: .85; }
.ref { margin: 0; font-size: .9rem; opacity: .9; overflow-wrap: anywhere; }
@media (prefers-color-scheme: dark) { .bandeau { background: #174f33; } }

main { padding-top: 20px; padding-bottom: 32px; }
.titre-fiche { font-size: 1.1rem; margin: 0 0 14px; color: var(--discret); font-weight: 600; }

/* Cartes */
.carte {
  background: var(--carte);
  border: 1px solid var(--bord);
  border-radius: var(--rayon);
  padding: 16px;
  margin: 0 0 16px;
  min-width: 0;
}
.carte h3 { margin: 0 0 10px; font-size: 1rem; color: var(--accent-fonce); }
.carte ul { list-style: none; margin: 0; padding: 0; }
.carte li { padding: 8px 0; border-top: 1px solid var(--bord); overflow-wrap: anywhere; }
.carte li:first-child { border-top: 0; padding-top: 0; }
.carte li:last-child { padding-bottom: 0; }
.phrase { padding-left: 22px !important; position: relative; }
.phrase::before {
  content: ""; position: absolute; left: 4px; top: .6em;
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
}
.paire { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; }
.libelle { color: var(--discret); }
.valeur { font-weight: 600; text-align: right; }
.vide { text-align: center; color: var(--discret); }

.sections { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
@media (min-width: 720px) {
  .sections { grid-template-columns: 1fr 1fr; align-items: start; }
}

.note-badge { display: inline-block; padding: 2px 10px; border-radius: 999px; color: #fff; font-weight: 700; }
.n1 { background: #c62828; } .n2 { background: #ef6c00; } .n3 { background: #f9a825; color: #1f2a24; }
.n4 { background: #7cb342; } .n5 { background: #2e7d32; }

.pied { margin-top: 8px; font-size: .8rem; color: var(--discret); text-align: center; }

/* Formulaire */
fieldset.carte { padding-top: 8px; }
legend { font-weight: 700; color: var(--accent-fonce); padding: 0 6px; margin-left: -6px; }
.grille { display: grid; grid-template-columns: 1fr; gap: 12px 16px; }
@media (min-width: 640px) {
  .grille { grid-template-columns: 1fr 1fr; }
  .champ.large, .champ-oui { grid-column: 1 / -1; }
}
.champ { display: flex; flex-direction: column; min-width: 0; }
.champ label { font-size: .9rem; font-weight: 600; margin-bottom: 4px; }
.champ small { color: var(--discret); font-size: .8rem; margin-top: 3px; }
.champ-oui label { font-weight: 400; display: flex; align-items: center; gap: 8px; }
.champ-oui input { width: 18px; height: 18px; margin: 0; flex: none; }
input[type=text], input[type=number], select, textarea {
  width: 100%;
  font: inherit;
  color: var(--texte);
  background: var(--carte);
  border: 1px solid var(--bord);
  border-radius: 6px;
  padding: 8px 10px;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
.cache { display: none !important; }
.note { color: var(--discret); font-size: .9rem; }
.actions { display: flex; justify-content: flex-end; }

.btn {
  font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; white-space: nowrap;
  border: 1px solid var(--accent); background: var(--carte); color: var(--accent-fonce);
  border-radius: 6px; padding: 8px 14px; display: inline-block;
}
.btn-principal { background: var(--accent); color: #fff; padding: 10px 20px; }
.btn-principal:hover { background: var(--accent-fonce); }
.btn-secondaire { border-color: var(--bord); color: var(--texte); }
@media (max-width: 639px) { .actions .btn { width: 100%; } }

.alerte { border-radius: var(--rayon); padding: 12px 16px; margin-bottom: 16px; border: 1px solid var(--bord); }
.alerte ul { margin: 6px 0 0; padding-left: 20px; }
.alerte-ok { background: var(--accent-clair); border-color: var(--accent); }
.alerte-info { background: var(--info-clair); }
.alerte-erreur { background: var(--erreur-clair); border-color: var(--erreur); color: var(--erreur); }
.url-copie { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.url-copie input { flex: 1 1 220px; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .9rem; }

/* Page d'accueil */
.accueil { padding: 32px 0 28px; }
.accueil h1 { font-size: 1.7rem; }
.recherche h2 { margin: 0 0 6px; font-size: 1.15rem; }
.recherche p, .carte p { margin: 0 0 8px; }
.recherche .url-copie input { font-family: ui-monospace, Menlo, Consolas, monospace; text-transform: lowercase; }
.etapes { margin: 0; padding-left: 20px; }
.etapes li { padding: 4px 0; }
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .9em; background: var(--accent-clair); padding: 1px 4px; border-radius: 4px; }
@media (min-width: 720px) { .accueil h1 { font-size: 2rem; } }