/* getcourses — « Un cours, un endroit »
   Identité : compagnon de révision clair et joyeux. Un seul dégradé fort
   (violet→ciel) réservé à la barre et aux actions principales ; des pastilles
   de matière (emoji + couleur) comme signe récurrent ; des cartes rondes. */

:root {
  --violet: #6C5CE7;
  --violet-fonce: #5a4bd4;
  --mint: #00b894;
  --sky: #0984e3;
  --sun: #fdcb6e;
  --coral: #ff6b81;
  --ink: #20214a;
  --muted: #7a7a99;
  --bg: #f4f4fb;
  --card: #ffffff;
  --bord: #ecebf5;
  --ombre: 0 6px 24px rgba(44, 39, 94, .08);
  --ombre-forte: 0 12px 36px rgba(44, 39, 94, .16);
  --rayon: 20px;
  --rayon-s: 12px;
  --grad: linear-gradient(120deg, var(--violet), var(--sky));
  --police: "Nunito", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--police);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  /* Zone sûre iPhone (encoche + barre du bas). */
  padding-bottom: calc(72px + env(safe-area-inset-bottom));
  min-height: 100vh;
}

a { color: var(--violet); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-weight: 800; line-height: 1.2; letter-spacing: -.01em; }
h1 { font-size: 1.6rem; margin: .2em 0; }

/* --- Barre d'application ------------------------------------------------- */
.barre {
  position: sticky; top: 0; z-index: 40;
  background: var(--grad);
  color: #fff;
  padding: calc(env(safe-area-inset-top) + 14px) 18px 14px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: var(--ombre);
}
.barre .marque {
  font-weight: 900; font-size: 1.25rem; color: #fff; letter-spacing: -.02em;
  display: flex; align-items: center; gap: 8px;
}
.barre .marque:hover { text-decoration: none; }
.barre .grandir { flex: 1; }
.avatar {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,.22); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-size: .9rem;
  border: 2px solid rgba(255,255,255,.5);
}
.cloche { position: relative; color: #fff; font-size: 1.3rem; }
.cloche .pastille-nb {
  position: absolute; top: -4px; right: -6px;
  background: var(--coral); color: #fff; font-size: .68rem; font-weight: 800;
  min-width: 18px; height: 18px; border-radius: 9px; display: grid; place-items: center;
  padding: 0 4px;
}

/* --- Conteneur ---------------------------------------------------------- */
.page { max-width: 960px; margin: 0 auto; padding: 18px; }
.rangee { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.entre { justify-content: space-between; }

/* --- Cartes ------------------------------------------------------------- */
.carte {
  background: var(--card); border: 1px solid var(--bord);
  border-radius: var(--rayon); padding: 18px; box-shadow: var(--ombre);
}
.carte + .carte { margin-top: 16px; }
.carte h2 { margin-top: 0; }

.grille {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

/* --- Pastille de matière (le signe récurrent) --------------------------- */
.pastille {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 12px; border-radius: 999px; font-weight: 800; font-size: .82rem;
  color: #fff; white-space: nowrap;
}
.pastille .emo { font-size: 1.05em; }

/* --- Carte de thème ----------------------------------------------------- */
.theme-carte {
  display: block; background: var(--card); border: 1px solid var(--bord);
  border-radius: var(--rayon); padding: 16px; box-shadow: var(--ombre);
  transition: transform .12s ease, box-shadow .12s ease; color: var(--ink);
  border-top: 5px solid var(--violet);
}
.theme-carte:hover { transform: translateY(-3px) rotate(-.4deg); box-shadow: var(--ombre-forte); text-decoration: none; }
.theme-carte .titre { font-weight: 800; font-size: 1.08rem; margin: 10px 0 4px; }
.theme-carte .meta { color: var(--muted); font-size: .82rem; display: flex; gap: 10px; flex-wrap: wrap; }
.theme-carte .prets { color: var(--mint); font-weight: 800; }

/* --- Boutons ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  border: none; border-radius: 999px; padding: 11px 20px;
  font-family: inherit; font-weight: 800; font-size: .95rem;
  background: var(--bord); color: var(--ink); transition: filter .12s, transform .06s;
}
.btn:hover { filter: brightness(.97); text-decoration: none; }
.btn:active { transform: scale(.97); }
.btn-primaire { background: var(--grad); color: #fff; box-shadow: var(--ombre); }
.btn-mint { background: var(--mint); color: #fff; }
.btn-sun { background: var(--sun); color: #6b4e00; }
.btn-coral { background: var(--coral); color: #fff; }
.btn-fantome { background: transparent; border: 2px solid var(--bord); }
.btn-sm { padding: 7px 14px; font-size: .82rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* --- Formulaires -------------------------------------------------------- */
label { font-weight: 700; font-size: .85rem; display: block; margin: 12px 0 5px; }
input, select, textarea {
  width: 100%; font-family: inherit; font-size: 1rem; color: var(--ink);
  padding: 11px 13px; border: 2px solid var(--bord); border-radius: var(--rayon-s);
  background: #fff; transition: border-color .12s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--violet); }
textarea { resize: vertical; min-height: 80px; }
.champs-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 520px) { .champs-2 { grid-template-columns: 1fr; } }

/* --- Bandeaux / messages ------------------------------------------------ */
.bandeau { border-radius: var(--rayon-s); padding: 12px 16px; font-weight: 700; margin-bottom: 14px; }
.bandeau-info { background: #eef4ff; color: var(--sky); }
.bandeau-ok { background: #e7fbf4; color: var(--mint); }
.bandeau-attention { background: #fff6e0; color: #a8720a; }
.bandeau-erreur { background: #ffeef0; color: var(--coral); }

.puce { display:inline-block; padding: 3px 10px; border-radius: 999px; font-size:.74rem; font-weight:800; }
.puce-attente { background:#fff6e0; color:#a8720a; }
.puce-ok { background:#e7fbf4; color:var(--mint); }
.puce-erreur { background:#ffeef0; color:var(--coral); }
.puce-cours { background:#eef4ff; color:var(--sky); }

.muet { color: var(--muted); }
.centre { text-align: center; }
.mt { margin-top: 16px; } .mb { margin-bottom: 16px; }

/* --- Galerie de dépôts -------------------------------------------------- */
.depots { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(140px,1fr)); }
.depot {
  border: 1px solid var(--bord); border-radius: var(--rayon-s); overflow: hidden;
  background: #fff; position: relative;
}
.depot img { width: 100%; height: 120px; object-fit: cover; display: block; background:#f0f0f7; }
.depot .bas { padding: 8px 10px; font-size: .74rem; display:flex; justify-content:space-between; align-items:center; }
.depot .pdf { height:120px; display:grid; place-items:center; font-size:2.4rem; background:#f6f0ff; }

/* --- Carte mentale : arbre à branches + panneau de détail --------------- */
.mm-detail {
  position: sticky; top: 74px; z-index: 5;
  background: #faf9ff; border: 1px dashed var(--violet); border-radius: var(--rayon-s);
  padding: 14px 16px; margin-bottom: 16px; min-height: 56px;
}
.mm-detail h4 { margin: 0 0 .4em; color: var(--violet); }
.mm-detail .prose { font-size: .92rem; }
.mm-detail .vide { color: var(--muted); }

.mm-scroll { overflow-x: auto; padding-bottom: 6px; }
ul.mm, ul.mm ul { list-style: none; margin: 0; padding: 0; }
ul.mm > li { margin-bottom: 12px; }
ul.mm ul { margin-left: 16px; }
ul.mm ul > li { position: relative; padding-left: 28px; }
/* branche verticale reliant les enfants */
ul.mm ul > li::before {
  content: ""; position: absolute; left: 0; top: -12px; bottom: 0;
  border-left: 2px solid var(--bord);
}
ul.mm ul > li:last-child::before { height: 32px; bottom: auto; }
/* connecteur horizontal en L vers le nœud */
ul.mm ul > li::after {
  content: ""; position: absolute; left: 0; top: 20px; width: 26px;
  border-top: 2px solid var(--bord);
}

/* Ligne d'un nœud : chevron de pli + carte du nœud. */
.mm-row { display: flex; align-items: center; gap: 6px; }
.mm-toggle {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  border: 1px solid var(--bord); background: #fff; color: var(--violet);
  cursor: pointer; font-size: .7rem; line-height: 1; display: grid; place-items: center;
  transition: transform .12s, background .12s;
}
.mm-toggle:hover { background: #f1f0fb; }
.mm-feuille { flex: none; width: 22px; height: 1px; }
li.replie > .mm-row .mm-toggle { transform: rotate(-90deg); }
li.replie > ul.mm { display: none; }
.mm-compte {
  align-self: flex-start; margin-top: 2px; background: #f1f0fb; color: var(--violet);
  font-size: .68rem; font-weight: 800; padding: 1px 7px; border-radius: 999px;
}

.mm-node {
  display: inline-flex; flex-direction: column; align-items: flex-start; gap: 2px;
  text-align: left; cursor: pointer; margin: 4px 0;
  background: #fff; border: 1px solid var(--bord); border-left: 5px solid var(--violet);
  border-radius: 12px; padding: 8px 14px; font-family: inherit; max-width: 340px;
  transition: box-shadow .12s, transform .05s;
}
.mm-node:hover { box-shadow: var(--ombre); transform: translateY(-1px); }
.mm-node.actif { box-shadow: var(--ombre); outline: 2px solid var(--violet); outline-offset: 1px; }
.mm-node b { color: var(--ink); font-size: .96rem; line-height: 1.25; }
.mm-node .mm-desc {
  color: var(--muted); font-size: .8rem; line-height: 1.3;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* --- Contenu de cours (Markdown rendu) ---------------------------------- */
.prose { line-height: 1.7; }
.prose h1 { color: var(--violet); }
.prose h2 { color: var(--mint); border-bottom: 2px solid var(--bord); padding-bottom: .2em; margin-top: 1.4em; }
.prose h3 { color: var(--sky); }
.prose code { background:#f1f0fb; padding:.1em .35em; border-radius:6px; }
.prose blockquote { border-left: 4px solid var(--sun); background:#fffdf3; margin:1em 0; padding:.6em 1em; border-radius:0 10px 10px 0; }
.prose table { border-collapse: collapse; width:100%; }
.prose th, .prose td { border: 1px solid var(--bord); padding: .4em .6em; }

/* --- QCM ---------------------------------------------------------------- */
.question { border:1px solid var(--bord); border-radius: var(--rayon-s); padding: 14px; margin-bottom: 14px; }
.question .enonce { font-weight: 800; margin-bottom: 10px; }
.choix { display:block; border:2px solid var(--bord); border-radius: 12px; padding: 10px 14px; margin: 8px 0; cursor:pointer; transition: border-color .1s, background .1s; }
.choix:hover { border-color: var(--violet); }
.choix input { width:auto; margin-right:8px; }
.choix.juste { border-color: var(--mint); background:#e7fbf4; }
.choix.faux { border-color: var(--coral); background:#ffeef0; }
.score { font-size: 2.4rem; font-weight: 900; }

/* --- Chat --------------------------------------------------------------- */
.chat { display:flex; flex-direction:column; gap:10px; max-height: 60vh; overflow-y:auto; padding: 6px; }
.bulle { max-width: 82%; padding: 10px 14px; border-radius: 16px; }
.bulle.user { align-self: flex-end; background: var(--grad); color:#fff; border-bottom-right-radius:4px; }
.bulle.assistant { align-self: flex-start; background:#fff; border:1px solid var(--bord); border-bottom-left-radius:4px; }
.chat-form { display:flex; gap:8px; margin-top:12px; }
.chat-form input { flex:1; }

/* --- Navigation basse (PWA mobile) -------------------------------------- */
.nav-bas {
  position: fixed; left:0; right:0; bottom:0; z-index: 50;
  background: #fff; border-top: 1px solid var(--bord);
  display: flex; justify-content: space-around;
  padding: 8px 0 calc(8px + env(safe-area-inset-bottom));
  box-shadow: 0 -4px 20px rgba(44,39,94,.06);
}
.nav-bas a { color: var(--muted); font-size: .68rem; font-weight: 800; text-align:center; display:flex; flex-direction:column; gap:2px; }
.nav-bas a .ic { font-size: 1.35rem; }
.nav-bas a.actif { color: var(--violet); }
.nav-bas a:hover { text-decoration:none; }

/* --- Divers ------------------------------------------------------------- */
.pliage summary { cursor: pointer; font-weight: 800; padding: 8px 0; }
.tag-liste { display:flex; gap:8px; flex-wrap:wrap; }
hr { border:none; border-top:1px solid var(--bord); margin: 18px 0; }
table.liste { width:100%; border-collapse: collapse; }
table.liste th, table.liste td { text-align:left; padding: 9px 10px; border-bottom:1px solid var(--bord); font-size:.9rem; }
table.liste th { color: var(--muted); font-size:.78rem; text-transform:uppercase; letter-spacing:.03em; }