:root {
  --bg: #0e1420;
  --bg2: #16202f;
  --card: #1a2637;
  --border: #2a3a52;
  --text: #dbe4f0;
  --muted: #8a9bb0;
  --accent: #d4a72c;
  --accent2: #4a90d9;
  --ok: #3fa34d;
  --warn: #d9a13b;
  --ko: #c0392b;
  --mono: "Cascadia Code", Consolas, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
  line-height: 1.6;
}
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Header ---------- */
.site-header {
  display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap;
  padding: .7rem 1.5rem;
  background: var(--bg2);
  border-bottom: 2px solid var(--accent);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-family: var(--mono); font-weight: 700; color: var(--accent); font-size: 1.15rem; letter-spacing: 1px; }
.brand:hover { text-decoration: none; }
.site-header nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.site-header nav a { color: var(--text); font-size: .95rem; }
.profile { margin-left: auto; color: var(--muted); font-size: .9rem; }

.container { max-width: 960px; margin: 0 auto; padding: 1.5rem 1rem 4rem; }
.site-footer { border-top: 1px solid var(--border); padding: 1rem 1.5rem; color: var(--muted); font-size: .8rem; text-align: center; }

h1 { border-bottom: 1px solid var(--border); padding-bottom: .4rem; }
h2 { color: var(--accent); margin-top: 2rem; }
.lead { color: var(--muted); font-size: 1.05rem; }
.muted { color: var(--muted); }
.alert { background: #3d2a2a; border: 1px solid var(--ko); padding: .6rem 1rem; border-radius: 6px; }

/* ---------- Cartes & grilles ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  margin: .8rem 0;
}
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: .8rem; }
.stats .stat { text-align: center; display: block; }
.stat-num { display: block; font-size: 1.8rem; font-weight: 700; color: var(--accent); font-family: var(--mono); }
.stat-label { color: var(--muted); font-size: .85rem; }
.link-card { display: block; color: var(--text); }
.link-card:hover { border-color: var(--accent); text-decoration: none; }

.btn, button {
  background: var(--accent2); color: #fff; border: none; border-radius: 6px;
  padding: .55rem 1.1rem; font-size: .95rem; cursor: pointer; display: inline-block;
}
.btn:hover, button:hover { filter: brightness(1.15); text-decoration: none; }
.btn-small { padding: .3rem .7rem; font-size: .82rem; }
.btn-niveau { background: var(--bg2); border: 1px solid var(--border); color: var(--text); }
.btn-ok { background: var(--ok); }
.btn-warn { background: var(--warn); color: #1a1a1a; }
.btn-ko { background: var(--ko); }
.row { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.inline { display: inline; }

input[type=text], input[type=search], select {
  background: var(--bg); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: .5rem .7rem; font-size: .95rem;
}
.form-card input { flex: 1; }
.filters { display: flex; gap: .6rem; flex-wrap: wrap; margin: 1rem 0; }
.filters input[type=search] { flex: 1; min-width: 180px; }

.badge { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; padding: .1rem .6rem; font-size: .75rem; color: var(--muted); }
.badge.ok { border-color: var(--ok); color: var(--ok); }
.tag { background: var(--bg2); border: 1px solid var(--border); border-radius: 4px; padding: .05rem .45rem; font-size: .75rem; color: var(--muted); margin-right: .3rem; white-space: nowrap; }
.stars { color: var(--accent); font-size: .85rem; }

/* ---------- Parcours ---------- */
.bloc { margin-bottom: 1.5rem; }
.bloc-tag {
  display: inline-block; background: var(--accent); color: #141414;
  font-weight: 700; border-radius: 6px; padding: .1rem .55rem; margin-right: .4rem;
}
.fiche-list { display: flex; flex-direction: column; gap: .4rem; }
.fiche-item {
  display: flex; gap: .8rem; align-items: baseline;
  background: var(--card); border: 1px solid var(--border); border-radius: 6px;
  padding: .55rem .9rem; color: var(--text);
}
.fiche-item:hover { border-color: var(--accent2); text-decoration: none; }
.fiche-status { color: var(--ok); width: 1.2rem; }
.fiche-title { flex: 1; }
.bloc-progress { margin: .6rem 0; }
.bloc-head { display: flex; justify-content: space-between; font-size: .9rem; margin-bottom: .25rem; }
.bar { background: var(--bg2); border-radius: 5px; height: 9px; overflow: hidden; }
.bar-fill { background: var(--accent); height: 100%; transition: width .4s; }

/* ---------- Fiche ---------- */
.fiche-nav { display: flex; justify-content: space-between; margin-bottom: 1rem; font-size: .9rem; }
.fiche h1 { margin-top: .5rem; }
.fiche h2 { color: var(--accent); }
.fiche h3 { color: var(--accent2); }
.fiche table { border-collapse: collapse; width: 100%; margin: 1rem 0; }
.fiche th, .fiche td { border: 1px solid var(--border); padding: .4rem .7rem; text-align: left; }
.fiche th { background: var(--bg2); }
.fiche blockquote { border-left: 3px solid var(--accent); margin-left: 0; padding: .3rem 1rem; color: var(--muted); background: var(--bg2); }
.fiche code { background: var(--bg2); border-radius: 4px; padding: .1rem .35rem; font-family: var(--mono); font-size: .9em; }
.fiche pre code { display: block; padding: .8rem; overflow-x: auto; }
.fiche img { max-width: 100%; }
.fiche-footer { border-top: 1px solid var(--border); padding: 1rem 0; margin-top: 2rem; }

/* ---------- Quiz ---------- */
.quiz-q legend { font-weight: 600; }
.choix-item { display: flex; gap: .6rem; align-items: baseline; padding: .3rem .2rem; border-radius: 4px; }
.choix-item:hover { background: var(--bg2); }
.choix-item input { margin-top: .35rem; }
.choix { list-style: none; padding-left: .5rem; }
.choix li { padding: .15rem 0; }
.choix li.good { color: var(--ok); }
.choix li.bad { color: var(--ko); }
.q-ok { border-left: 4px solid var(--ok); }
.q-ko { border-left: 4px solid var(--ko); }
.score-big { font-size: 2rem; font-family: var(--mono); font-weight: 700; }
.score-big.ok { color: var(--ok); }
.score-big.warn { color: var(--warn); }
.score-big.ko { color: var(--ko); }
.bank-card h3 { margin-top: 0; }

/* ---------- Exercices ---------- */
.exo h3 { margin-top: 0; display: flex; gap: .8rem; align-items: baseline; flex-wrap: wrap; }
.corrige { margin: .6rem 0; }
.corrige summary { cursor: pointer; color: var(--accent2); }
.corrige > div { border-top: 1px dashed var(--border); margin-top: .5rem; padding-top: .5rem; }

/* ---------- Flashcards ---------- */
.fc-meta { display: flex; gap: 1.5rem; color: var(--muted); font-size: .85rem; margin-bottom: 1rem; }
.flashcard {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  min-height: 260px; display: flex; flex-direction: column; justify-content: center; align-items: center;
  padding: 2rem; cursor: pointer; text-align: center; user-select: none;
}
.flashcard.flipped { border-color: var(--accent); }
.fc-cat { position: absolute; }
.flashcard { position: relative; }
.fc-cat { top: .8rem; left: 1rem; font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.fc-text { font-size: 1.15rem; }
.fc-hint { position: absolute; bottom: .7rem; font-size: .75rem; color: var(--muted); }
.fc-grades { display: flex; gap: .8rem; justify-content: center; margin: 1rem 0; }
.fc-progress { text-align: center; color: var(--muted); font-family: var(--mono); }

/* ---------- Industrie ---------- */
.acteur summary { cursor: pointer; display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.acteur summary::-webkit-details-marker { display: none; }
.acteur summary::before { content: "▸ "; color: var(--accent); }
.acteur[open] summary::before { content: "▾ "; }
.tags { display: flex; flex-wrap: wrap; gap: .2rem; }

/* ---------- Tables ---------- */
.tbl { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: .92rem; }
.tbl th, .tbl td { border: 1px solid var(--border); padding: .45rem .7rem; text-align: left; vertical-align: top; }
.tbl th { background: var(--bg2); }
.tbl tr:nth-child(even) td { background: rgba(255,255,255,.02); }

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 3rem 1rem; }
.hero h1 { border: none; font-size: 2.2rem; }
.hero p { max-width: 600px; margin: 1rem auto; color: var(--muted); }

@media (max-width: 640px) {
  .site-header { gap: .8rem; }
  .profile { margin-left: 0; }
}