:root {
  --fond: #f6f4ef;
  --carte: #ffffff;
  --encre: #1d2421;
  --encre-douce: #5d6863;
  --trait: #e3dfd6;
  --accent: #1f5f57;
  --accent-fonce: #164841;
  --accent-clair: #e5efec;
  --doute: #fbe7a6;
  --doute-trait: #d9a520;
  --ecart: #f8d5cc;
  --ecart-trait: #c4553b;
  --completer: #dce7f7;
  --erreur: #a8361f;
  --ombre: 0 1px 2px rgba(29, 36, 33, .06), 0 4px 16px rgba(29, 36, 33, .05);
  --rayon: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fond: #141816;
    --carte: #1c2120;
    --encre: #e8ebe9;
    --encre-douce: #9aa5a0;
    --trait: #2d3432;
    --accent: #6fbfb2;
    --accent-fonce: #8fd3c7;
    --accent-clair: #20302d;
    --doute: #5a4710;
    --doute-trait: #e5b53a;
    --ecart: #5b2a20;
    --ecart-trait: #ec8a73;
    --completer: #23344d;
    --erreur: #f08d78;
    --ombre: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--fond);
  color: var(--encre);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
h2 { font-size: 1.05rem; font-weight: 650; margin: 0; letter-spacing: -.01em; }
button, input, select, textarea { font: inherit; color: inherit; }

/* ---------- Marque ---------- */
.marque { display: flex; align-items: center; gap: .55rem; font-weight: 700; letter-spacing: -.02em; font-size: 1.05rem; }
.marque-signe {
  width: 22px; height: 22px; border-radius: 7px; background: var(--accent); position: relative; flex: none;
}
.marque-signe::after {
  content: ""; position: absolute; left: 6px; right: 6px; top: 10px; height: 2px; border-radius: 2px; background: var(--fond);
  box-shadow: 0 -5px 0 var(--fond), 0 5px 0 var(--fond);
}

/* ---------- Connexion ---------- */
.connexion { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.carte-connexion { width: min(400px, 100%); display: grid; gap: .9rem; padding: 2rem 1.75rem; }
.sous-titre { margin: -.4rem 0 .4rem; color: var(--encre-douce); }
label { display: grid; gap: .3rem; font-size: .9rem; font-weight: 550; }
input, select {
  border: 1px solid var(--trait); border-radius: 10px; padding: .65rem .75rem; background: var(--carte);
}
input:focus, select:focus, textarea:focus, .resultat:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------- En-tête ---------- */
.entete {
  display: flex; align-items: center; gap: 1.25rem; padding: .75rem 24px;
  border-bottom: 1px solid var(--trait); background: var(--fond); position: sticky; top: 0; z-index: 2;
}
.onglets { display: flex; gap: .25rem; }
.onglet {
  border: 0; background: none; padding: .4rem .8rem; border-radius: 999px; color: var(--encre-douce); cursor: pointer; font-weight: 550;
}
.onglet.actif { background: var(--accent-clair); color: var(--accent-fonce); }
.compte { margin-left: auto; display: flex; gap: .75rem; align-items: center; color: var(--encre-douce); font-size: .9rem; }
.lien { border: 0; background: none; color: var(--accent); cursor: pointer; padding: 0; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Page ---------- */
.page { padding: 20px 24px 40px; max-width: 1280px; margin: 0 auto; display: grid; gap: 16px; }
.colonnes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.carte {
  background: var(--carte); border: 1px solid var(--trait); border-radius: var(--rayon);
  box-shadow: var(--ombre); padding: 1.1rem 1.2rem; display: grid; gap: .8rem; min-width: 0;
}
.carte-titre { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 38px; }
.aide { color: var(--encre-douce); font-size: .85rem; text-align: right; }
.explication { margin: 0; color: var(--encre-douce); font-size: .92rem; }
.rappel { margin: -.3rem 0 0; font-size: .82rem; color: var(--encre-douce); }

/* ---------- Modes ---------- */
.modes { display: flex; gap: .5rem; flex-wrap: wrap; }
.mode {
  border: 1px solid var(--trait); background: var(--carte); border-radius: 999px; padding: .5rem 1rem; cursor: pointer; font-weight: 600;
}
.mode[aria-checked="true"] { background: var(--accent); border-color: var(--accent); color: var(--fond); }

/* ---------- Zones de texte ---------- */
textarea {
  width: 100%; border: 1px solid var(--trait); border-radius: 10px; padding: .8rem .9rem;
  background: var(--carte); resize: vertical; line-height: 1.55;
}
textarea.code { font: 13.5px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.resultat {
  min-height: 300px; border: 1px solid var(--trait); border-radius: 10px; padding: .8rem .9rem;
  white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.6;
}
.resultat.vide::before { content: attr(data-vide); color: var(--encre-douce); }
.resultat mark { color: inherit; border-radius: 3px; padding: 0 1px; }
.resultat mark.doute { background: var(--doute); box-shadow: inset 0 -2px 0 var(--doute-trait); }
.resultat mark.ecart { background: var(--ecart); box-shadow: inset 0 -2px 0 var(--ecart-trait); cursor: help; }
.resultat mark.completer { background: var(--completer); }

.legende { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem 1rem; font-size: .82rem; color: var(--encre-douce); }
.cle { display: inline-flex; align-items: center; gap: .4rem; white-space: nowrap; }
.pastille { width: 12px; height: 12px; border-radius: 3px; display: inline-block; flex: none; }
.pastille.doute { background: var(--doute); box-shadow: inset 0 -2px 0 var(--doute-trait); }
.pastille.ecart { background: var(--ecart); box-shadow: inset 0 -2px 0 var(--ecart-trait); }

/* ---------- Détails ---------- */
#details { display: grid; gap: .5rem; }
details { border: 1px solid var(--trait); border-radius: 10px; padding: .55rem .8rem; }
details.alerte { border-color: var(--ecart-trait); }
summary { cursor: pointer; font-weight: 600; font-size: .92rem; }
details ol, details ul { margin: .5rem 0 .2rem; padding-left: 1.3rem; display: grid; gap: .35rem; font-size: .92rem; }
.type { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--ecart-trait); margin-right: .35rem; }
.lien-ecart { cursor: pointer; }
.lien-ecart:hover q { text-decoration: underline; }
.info { font-size: .9rem; color: var(--encre-douce); margin: 0; }
.info.ok { color: var(--accent); }

/* ---------- Boutons ---------- */
.actions { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.bouton {
  border: 1px solid var(--trait); background: var(--carte); border-radius: 10px; padding: .55rem 1rem; cursor: pointer; font-weight: 600;
  display: inline-flex; align-items: center; gap: .5rem;
}
.bouton:hover:not(:disabled) { border-color: var(--encre-douce); }
.bouton.principal { background: var(--accent); border-color: var(--accent); color: var(--fond); }
.bouton.principal:hover:not(:disabled) { background: var(--accent-fonce); border-color: var(--accent-fonce); }
.bouton:disabled { opacity: .5; cursor: default; }
.bouton.large { justify-content: center; width: 100%; padding: .75rem; }
kbd { font: 600 .72rem/1 system-ui; opacity: .75; }
.statut { font-size: .9rem; color: var(--encre-douce); }
.statut.chargement::before {
  content: ""; display: inline-block; width: 12px; height: 12px; margin-right: .45rem; vertical-align: -1px;
  border: 2px solid var(--trait); border-top-color: var(--accent); border-radius: 50%; animation: tourne .8s linear infinite;
}
@keyframes tourne { to { transform: rotate(360deg); } }
.erreur { color: var(--erreur); margin: 0; font-size: .9rem; min-height: 1.2em; }
.statut.erreur { color: var(--erreur); }
.selection { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }

/* ---------- Mobile ---------- */
@media (max-width: 860px) {
  .colonnes { grid-template-columns: 1fr; }
  .entete { flex-wrap: wrap; gap: .5rem 1rem; padding: .6rem 16px; }
  .compte { font-size: .85rem; }
  .onglets { order: 3; width: 100%; overflow-x: auto; }
  .page { padding: 14px 16px 32px; }
  .resultat { min-height: 200px; }
  kbd { display: none; }
  .selection { grid-template-columns: 1fr; }
}