/* Appli d'évaluation R5.A.10 — une seule feuille pour les pages étudiant, enseignant et fiches. */
:root {
  --fond: #f4f5f7;
  --carte: #ffffff;
  --texte: #1c2330;
  --doux: #5b6576;
  --bord: #d9dde4;
  --accent: #1f5fbf;
  --accent-clair: #e6eefb;
  --ok: #1e7f4f;
  --ok-clair: #e3f4ea;
  --alerte: #b8560b;
  --alerte-clair: #fdf0e3;
  --danger: #b42318;
  --danger-clair: #fdeceb;
  --code-fond: #f6f8fa;
  --ombre: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);
  --rayon: 10px;
  font-size: 16px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--fond);
  color: var(--texte);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}
button, input, textarea, select { font: inherit; }
code, pre, .code { font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: .92em; }
:not(pre) > code { background: var(--code-fond); border: 1px solid var(--bord); border-radius: 4px; padding: 0 .3em; }
pre.code { background: var(--code-fond); border: 1px solid var(--bord); border-radius: 8px; padding: .75rem 1rem; overflow-x: auto; margin: .5rem 0; white-space: pre; }
.cache { display: none !important; }

/* ---------- Boutons, champs ---------- */
.btn {
  border: 1px solid var(--bord); background: var(--carte); color: var(--texte); border-radius: 8px;
  padding: .55rem 1rem; cursor: pointer; font-weight: 600; transition: background .1s, border-color .1s;
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-principal { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-principal:hover:not(:disabled) { background: #194f9f; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-ok { background: var(--ok); border-color: var(--ok); color: #fff; }
.btn-petit { padding: .25rem .6rem; font-size: .85rem; }
.btn-grand { padding: .9rem 1.6rem; font-size: 1.1rem; }
.champ { display: flex; flex-direction: column; gap: .3rem; margin-bottom: 1rem; }
.champ label { font-weight: 600; font-size: .95rem; }
.champ input, .champ textarea, .champ select {
  border: 1px solid var(--bord); border-radius: 8px; padding: .6rem .75rem; background: #fff; color: var(--texte);
}
.champ input:focus, .champ textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------- Mise en page générale ---------- */
.centre { max-width: 560px; margin: 8vh auto; padding: 0 16px; }
.carte { background: var(--carte); border: 1px solid var(--bord); border-radius: var(--rayon); box-shadow: var(--ombre); padding: 1.5rem; }
.carte h1 { margin-top: 0; font-size: 1.4rem; }
.doux { color: var(--doux); }
.erreur { background: var(--danger-clair); color: var(--danger); border-radius: 8px; padding: .6rem .8rem; margin: .75rem 0; }
.info { background: var(--accent-clair); color: #173d78; border-radius: 8px; padding: .6rem .8rem; margin: .75rem 0; }
.succes { background: var(--ok-clair); color: var(--ok); border-radius: 8px; padding: .6rem .8rem; margin: .75rem 0; }
.avert { background: var(--alerte-clair); color: var(--alerte); border-radius: 8px; padding: .6rem .8rem; margin: .75rem 0; }
.verifs { list-style: none; padding: 0; margin: 1rem 0; }
.verifs li { padding: .3rem 0; }
.verifs .ok::before { content: "✓ "; color: var(--ok); font-weight: 700; }
.verifs .ko::before { content: "✗ "; color: var(--danger); font-weight: 700; }
.verifs .inconnu::before { content: "? "; color: var(--alerte); font-weight: 700; }
.consignes { font-size: .95rem; }
.consignes li { margin-bottom: .3rem; }

/* ---------- Bandeau de l'épreuve ---------- */
.bandeau {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  background: #10284d; color: #fff; padding: .55rem 1rem;
}
.bandeau .titre { font-weight: 700; }
.bandeau .qui { opacity: .85; }
.bandeau .espace { flex: 1; }
.bandeau .chrono { font-variant-numeric: tabular-nums; font-weight: 700; font-size: 1.15rem; background: rgba(255,255,255,.12); padding: .15rem .6rem; border-radius: 6px; }
.bandeau .chrono.presque { background: var(--alerte); }
.bandeau .chrono.urgent { background: var(--danger); }
.bandeau .sauvegarde { font-size: .85rem; opacity: .9; min-width: 9rem; text-align: right; }
.bandeau .sauvegarde.ko { color: #ffd2cc; opacity: 1; font-weight: 700; }

/* ---------- QCM ---------- */
.qcm { display: grid; grid-template-columns: 230px 1fr; gap: 1rem; max-width: 1200px; margin: 1rem auto; padding: 0 16px; }
.grille { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; align-content: start; }
.grille button {
  border: 1px solid var(--bord); background: #fff; border-radius: 6px; padding: .35rem 0; cursor: pointer; font-weight: 600;
  font-variant-numeric: tabular-nums; position: relative;
}
.grille button.repondue { background: var(--accent-clair); border-color: #9db8e6; }
.grille button.marquee::after { content: ""; position: absolute; top: 2px; right: 2px; width: 7px; height: 7px; border-radius: 50%; background: var(--alerte); }
.grille button.courante { outline: 2px solid var(--accent); outline-offset: 1px; }
.legende { font-size: .8rem; color: var(--doux); margin-top: .75rem; }
.question .entete { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; }
.question .type { font-size: .85rem; font-weight: 700; padding: .1rem .5rem; border-radius: 999px; background: var(--accent-clair); color: #173d78; }
.question .type.multiple { background: var(--alerte-clair); color: var(--alerte); }
.question .enonce { font-size: 1.05rem; margin: 1rem 0; }
.question .enonce p { margin: .4rem 0; }
.choix { display: flex; flex-direction: column; gap: .5rem; }
.choix label {
  display: flex; gap: .75rem; align-items: flex-start; border: 1px solid var(--bord); border-radius: 8px; padding: .7rem .9rem;
  cursor: pointer; background: #fff;
}
.choix label:hover { border-color: var(--accent); }
.choix label.coche { border-color: var(--accent); background: var(--accent-clair); }
.choix input { margin-top: .3rem; transform: scale(1.2); }
.choix .lettre { font-weight: 700; color: var(--doux); min-width: 1.2rem; }
.navigation { display: flex; gap: .75rem; justify-content: space-between; margin-top: 1.25rem; flex-wrap: wrap; }
.marquer { display: inline-flex; gap: .4rem; align-items: center; font-size: .9rem; color: var(--doux); cursor: pointer; }

/* ---------- TP ---------- */
.tp { display: grid; grid-template-columns: 240px minmax(0, 1fr) 320px; gap: 1rem; max-width: 1500px; margin: 1rem auto; padding: 0 16px; }
.tp.sans-chat { grid-template-columns: 240px minmax(0, 1fr); }
.liste-composants { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.liste-composants button {
  width: 100%; text-align: left; border: 1px solid var(--bord); background: #fff; border-radius: 8px; padding: .5rem .7rem; cursor: pointer;
  display: flex; justify-content: space-between; gap: .5rem; align-items: center;
}
.liste-composants button.courant { outline: 2px solid var(--accent); }
.pastille { font-size: .78rem; font-weight: 700; padding: .05rem .45rem; border-radius: 999px; white-space: nowrap; }
.pastille.a_faire { background: #eef0f3; color: var(--doux); }
.pastille.reussi { background: var(--ok-clair); color: var(--ok); }
.pastille.revele { background: var(--danger-clair); color: var(--danger); }
.atelier h2 { margin: 0 0 .25rem; font-size: 1.25rem; }
.atelier .meta { color: var(--doux); font-size: .9rem; margin-bottom: .75rem; }
.colonnes { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: .75rem 0; }
.colonne h3 { margin: 0 0 .4rem; font-size: .95rem; color: var(--doux); text-transform: uppercase; letter-spacing: .03em; }
.zone {
  min-height: 140px; border: 2px dashed var(--bord); border-radius: 8px; padding: .5rem; background: #fbfcfd;
  display: flex; flex-direction: column; gap: 6px; list-style: none; margin: 0;
}
.zone.survol { border-color: var(--accent); background: var(--accent-clair); }
.zone .vide { color: var(--doux); font-size: .9rem; text-align: center; padding: 1.5rem .5rem; }
.bloc {
  display: flex; align-items: stretch; gap: .4rem; border: 1px solid #c9d2df; border-radius: 6px; background: #fff;
  cursor: grab; user-select: none;
}
.bloc.glisse { opacity: .4; }
.bloc pre { margin: 0; padding: .4rem .6rem; flex: 1; overflow-x: auto; white-space: pre; font-size: .85rem; }
.bloc .actions { display: flex; flex-direction: row; align-items: center; gap: 3px; padding: 2px 4px; }
.bloc .actions button { border: none; background: #eef2f7; border-radius: 4px; cursor: pointer; font-size: .75rem; padding: 1px 6px; line-height: 1.4; }
.bloc .actions button:hover { background: var(--accent-clair); }
.insertion { height: 3px; background: var(--accent); border-radius: 2px; }
.contexte { opacity: .85; }
.fige .bloc { cursor: default; }
.resultat { margin-top: .75rem; }

/* ---------- Chat ---------- */
.chat { display: flex; flex-direction: column; height: calc(100vh - 7rem); position: sticky; top: 4rem; }
.chat .fil { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: .5rem; padding: .25rem; }
.chat .msg { border-radius: 10px; padding: .5rem .7rem; max-width: 92%; font-size: .92rem; }
.chat .msg p { margin: .2rem 0; }
.chat .msg.moi { align-self: flex-end; background: var(--accent); color: #fff; }
.chat .msg.bot { align-self: flex-start; background: #eef1f5; }
.chat .suggestions { display: flex; flex-wrap: wrap; gap: 4px; margin: .4rem 0; }
.chat .suggestions button { border: 1px solid var(--bord); background: #fff; border-radius: 999px; padding: .15rem .6rem; font-size: .8rem; cursor: pointer; }
.chat form { display: flex; gap: .4rem; }
.chat form input { flex: 1; border: 1px solid var(--bord); border-radius: 8px; padding: .5rem .6rem; }
.chat h3 { margin: 0 0 .25rem; font-size: 1rem; }

/* ---------- Voiles et fenêtres ---------- */
.voile {
  position: fixed; inset: 0; z-index: 100; background: rgba(16, 24, 40, .78); display: flex; align-items: center; justify-content: center; padding: 16px;
}
.voile .carte { max-width: 560px; width: 100%; }
.ecran-verrou { background: var(--danger); color: #fff; min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; text-align: center; }
.ecran-verrou .carte { color: var(--texte); max-width: 620px; }
.ecran-verrou h1 { color: var(--danger); }

/* ---------- Tableau de bord enseignant ---------- */
.prof { padding: 1rem 16px; max-width: 1700px; margin: 0 auto; }
.prof .barre { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; margin-bottom: 1rem; }
.prof .barre .espace { flex: 1; }
.filtre { border: 1px solid var(--bord); border-radius: 8px; padding: .45rem .7rem; min-width: 280px; background: #fff; color: var(--texte); }
.compteurs { display: flex; gap: .75rem; flex-wrap: wrap; margin-bottom: 1rem; }
.compteur { background: var(--carte); border: 1px solid var(--bord); border-radius: 8px; padding: .4rem .8rem; min-width: 7rem; }
.compteur .n { font-size: 1.4rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.compteur .l { font-size: .8rem; color: var(--doux); }
.compteur.rouge { border-color: var(--danger); background: var(--danger-clair); }
.disposition { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 1rem; align-items: start; }
.table-defile { overflow-x: auto; background: var(--carte); border: 1px solid var(--bord); border-radius: var(--rayon); }
table.etudiants { border-collapse: collapse; width: 100%; font-size: .9rem; }
table.etudiants th, table.etudiants td { padding: .4rem .55rem; border-bottom: 1px solid var(--bord); text-align: left; white-space: nowrap; }
table.etudiants th { background: #f0f2f5; position: sticky; top: 0; font-size: .8rem; text-transform: uppercase; color: var(--doux); }
table.etudiants tr.verrouille td { background: var(--danger-clair); }
table.etudiants tr.termine td { color: var(--doux); }
.badge { display: inline-block; font-size: .78rem; font-weight: 700; padding: .05rem .5rem; border-radius: 999px; background: #eef0f3; color: var(--doux); }
.badge.actif { background: var(--ok-clair); color: var(--ok); }
.badge.verrouille { background: var(--danger); color: #fff; }
.badge.attente, .badge.demarrer { background: var(--accent-clair); color: #173d78; }
.badge.reprendre { background: var(--alerte-clair); color: var(--alerte); }
.signal.mauvais { color: var(--danger); font-weight: 700; }
.flux { background: var(--carte); border: 1px solid var(--bord); border-radius: var(--rayon); padding: .75rem; max-height: calc(100vh - 12rem); overflow-y: auto; }
.flux h2 { margin: 0 0 .5rem; font-size: 1rem; }
.incident { border-left: 4px solid var(--bord); padding: .35rem .6rem; margin-bottom: .5rem; font-size: .88rem; }
.incident.verrou { border-color: var(--danger); background: var(--danger-clair); }
.incident.verrou.resolu { border-color: var(--ok); background: #f3faf6; }
.incident .quand { color: var(--doux); font-size: .78rem; }
.detail .bloc-detail { margin: 1rem 0; }
.detail table { border-collapse: collapse; width: 100%; font-size: .85rem; }
.detail td, .detail th { border-bottom: 1px solid var(--bord); padding: .3rem .4rem; text-align: left; vertical-align: top; }
.fenetre { max-width: 900px; max-height: 90vh; overflow-y: auto; }
.juste { color: var(--ok); font-weight: 700; }
.faux { color: var(--danger); font-weight: 700; }

/* ---------- Fiches à imprimer ---------- */
.fiches { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 16px; }
.fiche { border: 1px dashed #888; border-radius: 6px; padding: .6rem .8rem; break-inside: avoid; background: #fff; font-size: .9rem; }
.fiche .code-acces { font-family: ui-monospace, Consolas, monospace; font-size: 1.5rem; font-weight: 700; letter-spacing: .15em; }
.fiche .petit { font-size: .75rem; color: #555; }
@media print {
  .pas-imprime { display: none !important; }
  body { background: #fff; }
  .fiches { padding: 0; }
}

/* ---------- Petits écrans (le tableau de bord se consulte aussi au téléphone) ---------- */
@media (max-width: 1100px) {
  .tp { grid-template-columns: 200px minmax(0, 1fr); }
  .tp .chat { grid-column: 1 / -1; height: 360px; position: static; }
  .disposition { grid-template-columns: 1fr; }
  .flux { max-height: none; }
}
@media (max-width: 720px) {
  .qcm, .tp { grid-template-columns: 1fr; }
  .colonnes { grid-template-columns: 1fr; }
  .fiches { grid-template-columns: 1fr 1fr; }
  table.etudiants .optionnel { display: none; }
}