/* Palette du cours (shared/beamer/themecours.sty) */
:root {
  --navy: #162a40;
  --cyan: #0096c8;
  --orange: #dc7832;
  --light: #e4f0f8;
  --grey: #e0e0e0;
  --pit: #f4d3d3;
  --ok: #288c5a;
  --ko: #b42828;
  --text: #162a40;
  --muted: #5b6b7c;
  --border: #c9d6e2;
  --bg: #f7fafc;
  --panel: #ffffff;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font-family: "Fira Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.45;
}
code, pre, textarea, .mono { font-family: "Fira Mono", "SFMono-Regular", Menlo, Consolas, monospace; }

#banner {
  background: var(--navy); color: #fff;
  padding: 14px 24px 12px; border-bottom: 4px solid var(--orange);
}
#banner h1 { margin: 0; font-size: 1.6em; font-weight: 700; }
#banner p { margin: 2px 0 0; color: var(--light); font-size: 0.9em; }

nav.tabs {
  display: flex; gap: 4px; flex-wrap: wrap;
  padding: 10px 24px 0; background: var(--bg); border-bottom: 1px solid var(--border);
}
nav.tabs button {
  font: inherit; font-weight: 600; color: var(--muted);
  background: none; border: none; border-bottom: 3px solid transparent;
  padding: 8px 14px; cursor: pointer;
}
nav.tabs button.active { color: var(--navy); border-bottom-color: var(--orange); }
nav.tabs button:hover { color: var(--navy); }

main { display: grid; grid-template-columns: 290px minmax(0, 1fr); gap: 20px; padding: 18px 24px 32px; max-width: 1500px; margin: 0 auto; }
main.wide { grid-template-columns: minmax(0, 1fr); }
main.wide #sidebar { display: none; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px; }
#sidebar .panel + .panel { margin-top: 14px; }
#sidebar h3 { margin: 0 0 8px; font-size: 1em; }
#sidebar label { display: block; font-size: 0.9em; margin: 10px 0 2px; color: var(--muted); }
#sidebar label b { color: var(--text); }
#sidebar select, #sidebar input[type=range] { width: 100%; }
select, input, button, textarea { font: inherit; }
select { padding: 4px 6px; border: 1px solid var(--border); border-radius: 6px; background: #fff; }

.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.seg button { border: none; background: #fff; padding: 5px 10px; cursor: pointer; color: var(--muted); font-size: 0.9em; }
.seg button + button { border-left: 1px solid var(--border); }
.seg button.on { background: var(--navy); color: #fff; }

.btn { border: 1px solid var(--border); background: #fff; border-radius: 6px; padding: 6px 12px; cursor: pointer; }
.btn:hover { border-color: var(--cyan); }
.btn.primary { background: var(--cyan); border-color: var(--cyan); color: #fff; font-weight: 600; }
.btn.primary:disabled { opacity: 0.6; cursor: wait; }
.btn.play { min-width: 5.5em; font-weight: 700; }

.legend { display: grid; grid-template-columns: 20px 1fr; gap: 4px 8px; font-size: 0.85em; color: var(--muted); align-items: center; }
.swatch { width: 18px; height: 18px; border-radius: 3px; border: 1px solid var(--border); }

.tab { display: none; }
.tab.active { display: block; }
.tab h2 { margin: 0 0 4px; font-size: 1.25em; }
.lead { margin: 0 0 12px; color: var(--muted); }

.stepper { display: flex; align-items: center; gap: 8px; margin: 8px 0 12px; flex-wrap: wrap; }
.stepper input[type=range] { flex: 1 1 200px; min-width: 120px; }
.stepper .klabel { font-weight: 700; min-width: 8.5em; font-variant-numeric: tabular-nums; }

.grids { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.grids.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
figure.grid { margin: 0; }
figure.grid figcaption { font-weight: 600; margin-bottom: 6px; }
figure.grid figcaption .sub { font-weight: 400; color: var(--muted); }
figure.grid svg { width: 100%; height: auto; display: block; max-height: max(240px, calc(100vh - 460px)); }
figure.grid svg .cell { cursor: pointer; }

.status { margin: 12px 0 0; padding: 10px 14px; background: var(--light); border-radius: 6px; font-variant-numeric: tabular-nums; }
.ok { color: var(--ok); font-weight: 600; }
.ko { color: var(--ko); font-weight: 600; }
.warn { color: var(--orange); font-weight: 600; }

.row2 { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 18px; margin-top: 16px; }
.chart svg { width: 100%; height: auto; display: block; }
.backup { font-size: 0.95em; }
.backup .eq { font-family: "Fira Mono", Menlo, monospace; font-size: 0.88em; white-space: pre-wrap; background: #fbfcfd; border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; margin: 6px 0 0; }
.hint { color: var(--muted); font-size: 0.9em; }

table.cycles { border-collapse: collapse; font-variant-numeric: tabular-nums; font-size: 0.95em; }
table.cycles th, table.cycles td { padding: 3px 12px; border-bottom: 1px solid var(--border); text-align: right; }
table.cycles th:first-child, table.cycles td:first-child { text-align: left; }
table.cycles tr.cur td { background: var(--light); font-weight: 600; }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 8px 0; }

footer { text-align: center; color: var(--muted); font-size: 0.85em; padding: 0 0 24px; }
footer a { color: var(--cyan); }

@media (max-width: 1100px) {
  .row2 { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 820px) {
  main { grid-template-columns: minmax(0, 1fr); padding: 12px 16px 24px; }
  .grids, .grids.three { grid-template-columns: minmax(0, 1fr); }
  #banner { padding: 12px 16px 10px; }
  nav.tabs { padding: 8px 16px 0; }
  body { font-size: 16px; }
}

/* ─── Contrôle sans modèle ─────────────────────────────────────────────── */
.algo-mc { color: #7b4fb0; }
.algo-sarsa { color: var(--cyan); }
.algo-q { color: var(--orange); }
.counters { display: flex; gap: 18px; flex-wrap: wrap; font-variant-numeric: tabular-nums; margin: 6px 0 10px; color: var(--muted); }
.counters b { color: var(--text); }
.speed { display: flex; align-items: center; gap: 8px; }
.speed input { width: 140px; }
figure.grid svg { max-height: max(220px, calc(100vh - 520px)); }
.paths { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 14px; }
.paths figure { margin: 0; }
.paths figcaption { font-weight: 600; margin-bottom: 4px; }
.progress { color: var(--muted); font-variant-numeric: tabular-nums; }
.num { width: 6em; padding: 4px 6px; border: 1px solid var(--border); border-radius: 6px; }
@media (max-width: 820px) { .paths { grid-template-columns: minmax(0, 1fr); } }