:root {
  --ink: #173442; --muted: #4b6569; --teal: #0f6d70; --teal-pale: #e5f3f1; --coral: #dd6d51; --coral-pale: #fff0eb;
  --paper: #fffdf8; --bg: #f3f7f6; --line: #c8dbd8; --ok: #2f7d3a; --ok-pale: #dff2df; --ko: #b4462f; --ko-pale: #fde4df;
  --mark: #ffe9a8; --shadow: 0 3px 0 rgba(23,52,66,.05);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: Arial, Helvetica, sans-serif; line-height: 1.5; }
main { max-width: 920px; margin: 0 auto; padding: 0 18px 48px; }
a { color: var(--teal); }
button { font: inherit; cursor: pointer; }
.hero { position: relative; overflow: hidden; padding: 46px 24px 38px; margin: 0 -18px 18px; text-align: center; color: #fff;
  background: linear-gradient(135deg, #0b5f64, #173442); }
.hero h1 { margin: 2px 0 8px; font-size: clamp(2.1rem, 7vw, 3.8rem); line-height: .98; }
.hero p { max-width: 520px; margin: 0 auto; font-size: 1.05rem; }
.hero .eyebrow { color: #ffd2c4; }
.switch { position: absolute; right: 14px; top: 12px; color: #fff; font-size: .85rem; font-weight: 700; text-decoration: none; opacity: .9; }
.back { position: absolute; left: 14px; top: 12px; color: #fff; font-size: .85rem; font-weight: 700; text-decoration: none; opacity: .9; }
.eyebrow { margin: 0 0 6px; text-transform: uppercase; letter-spacing: .09em; font-weight: 700; font-size: .75rem; color: var(--coral); }
.tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin: 0 auto 18px; }
.tabs button { padding: 9px 15px; border: 1px solid var(--line); border-radius: 999px; color: var(--teal); background: var(--paper); font-size: .92rem; font-weight: 700; }
.tabs button[aria-selected="true"] { color: #fff; border-color: var(--teal); background: var(--teal); }
.panel { display: none; } .panel.active { display: block; }
.card { max-width: 760px; margin: 0 auto 18px; padding: 24px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); box-shadow: var(--shadow); }
.card h2 { margin: 0 0 8px; }
.settings { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.settings label { display: grid; gap: 4px; font-size: .82rem; font-weight: 700; color: var(--muted); }
select, input[type=search], input[type=text], textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink); font: inherit; font-size: 1rem; }
select:focus, input:focus, textarea:focus { outline: 2px solid var(--teal); outline-offset: 1px; border-color: var(--teal); }
.seg { display: flex; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; background: #fff; }
.seg button { flex: 1; padding: 9px 8px; border: 0; background: transparent; color: var(--ink); font-size: .9rem; font-weight: 700; }
.seg button[aria-pressed="true"] { background: var(--teal-pale); color: var(--teal); box-shadow: inset 0 -3px 0 var(--teal); }
.stats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip { padding: 5px 11px; border-radius: 999px; background: var(--teal-pale); font-size: .82rem; font-weight: 700; color: var(--teal); }
.chip.coral { background: var(--coral-pale); color: var(--ko); }
.question { border-left: 5px solid var(--coral); }
.q-meta { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; color: var(--muted); font-size: .8rem; font-weight: 700; }
.q-term { margin: 10px 0 4px; font-size: clamp(1.5rem, 5vw, 2.1rem); line-height: 1.12; }
.q-prompt { margin: 0 0 14px; color: var(--muted); }
.q-def { margin: 10px 0 14px; padding: 14px; border-radius: 10px; background: var(--teal-pale); font-size: 1.05rem; }
.blank { display: inline-block; min-width: 90px; border-bottom: 2px solid var(--teal); color: transparent; }
textarea { min-height: 120px; resize: vertical; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.btn { padding: 12px 18px; border: 0; border-radius: 8px; background: var(--coral); color: #fff; font-weight: 700; }
.btn.teal { background: var(--teal); }
.btn.ghost { background: transparent; color: var(--teal); border: 1px solid var(--line); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.hint { margin: 8px 0 0; color: var(--muted); font-size: .85rem; }
.corrige { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line); }
.corrige h3 { margin: 0 0 8px; font-size: 1rem; color: var(--teal); }
.ref { margin: 0; padding: 14px; border-left: 4px solid var(--teal); background: var(--teal-pale); font-size: 1.02rem; }
mark { background: var(--mark); color: inherit; padding: 0 2px; border-radius: 3px; }
.keys { display: grid; gap: 6px; margin: 12px 0 0; padding: 0; list-style: none; }
.keys li { display: flex; gap: 8px; align-items: baseline; padding: 7px 10px; border-radius: 7px; font-size: .92rem; }
.keys li.ok { background: var(--ok-pale); } .keys li.ko { background: var(--ko-pale); }
.keys b { min-width: 18px; }
.ex, .src { margin: 10px 0 0; font-size: .88rem; color: var(--muted); }
.ex strong { color: var(--ink); }
.ext { display: inline-block; margin-left: 4px; padding: 1px 7px; border-radius: 999px; background: #eef0f1; color: var(--muted); font-size: .72rem; font-weight: 700; }
.verdict { margin: 12px 0 0; padding: 10px 12px; border-radius: 8px; font-weight: 700; }
.verdict.ok { background: var(--ok-pale); color: var(--ok); } .verdict.ko { background: var(--ko-pale); color: var(--ko); }
.self { margin-top: 14px; }
.self p { margin: 0 0 8px; font-weight: 700; }
.self .actions { margin-top: 0; }
.self button { flex: 1 1 140px; padding: 12px; border-radius: 8px; border: 1px solid var(--line); background: #fff; font-weight: 700; color: var(--ink); }
.self button[data-r="2"] { border-color: var(--ok); color: var(--ok); }
.self button[data-r="1"] { border-color: #b7832a; color: #8a5f12; }
.self button[data-r="0"] { border-color: var(--ko); color: var(--ko); }
.empty { text-align: center; color: var(--muted); }
/* carnet */
.toolbar { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: end; }
.theme-block { max-width: 760px; margin: 0 auto 16px; }
.theme-block > h2 { margin: 22px 0 10px; padding-bottom: 6px; border-bottom: 3px solid var(--teal); font-size: 1.15rem; }
.notion { margin: 0 0 10px; padding: 14px 16px; border: 1px solid var(--line); border-left: 4px solid var(--teal); border-radius: 10px; background: var(--paper); }
.notion h3 { display: flex; justify-content: space-between; gap: 10px; margin: 0 0 4px; font-size: 1.02rem; }
.notion p { margin: 0; }
.notion.locked { border-left-color: #b9c8c6; background: #f7f9f8; color: var(--muted); }
.lvl { flex: none; padding: 1px 8px; border-radius: 999px; font-size: .72rem; font-weight: 700; background: #eef0f1; color: var(--muted); white-space: nowrap; }
.lvl.b0 { background: var(--ko-pale); color: var(--ko); } .lvl.b1 { background: #fff3d6; color: #8a5f12; } .lvl.b2, .lvl.b3 { background: var(--teal-pale); color: var(--teal); } .lvl.b4 { background: var(--ok-pale); color: var(--ok); }
.write-line { display: none; }
/* progrès */
.bar-row { display: grid; grid-template-columns: minmax(0, 1fr) 120px 48px; gap: 10px; align-items: center; margin: 8px 0; font-size: .88rem; }
.bar { height: 10px; border-radius: 999px; background: #e3ebea; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--teal); }
.legend { color: var(--muted); font-size: .85rem; }
footer { max-width: 760px; margin: 30px auto 0; padding: 20px 24px; border-radius: 12px; background: var(--ink); color: #fff; font-size: .9rem; }
footer p { margin: 4px 0; } footer small { color: #cfe4e2; }
@media (max-width: 620px) {
  main { padding: 0 12px 32px; } .hero { margin: 0 -12px 16px; padding: 44px 16px 30px; }
  .card { padding: 18px 15px; } .settings, .toolbar { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: minmax(0, 1fr) 80px 40px; }
}
@media print {
  body { background: #fff; font-size: 10.5pt; } main { max-width: none; padding: 0; }
  .hero, .tabs, .no-print, footer, #panel-jeu, #panel-progres { display: none !important; }
  #panel-carnet { display: block !important; }
  .print-title { display: block !important; margin: 0 0 6px; font-size: 18pt; }
  .theme-block { max-width: none; break-inside: auto; } .theme-block > h2 { break-after: avoid; font-size: 12.5pt; margin-top: 12pt; }
  .notion { break-inside: avoid; border: 1px solid #999; border-left: 3px solid #333; padding: 6pt 8pt; margin-bottom: 5pt; background: #fff; }
  .notion.locked .write-line { display: block; height: 34pt; border-bottom: 1px dotted #777; }
  .lvl { display: none; } a { color: inherit; text-decoration: none; }
}
.print-title { display: none; }
.toolbar.two { grid-template-columns: 1fr auto; }
.choose { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 760px; margin: 10px auto 40px; }
.choice { display: grid; gap: 4px; padding: 26px 22px; border: 1px solid var(--line); border-top: 5px solid var(--coral); border-radius: 14px; background: var(--paper); color: var(--ink); text-decoration: none; box-shadow: var(--shadow); }
.choice:hover { border-color: var(--teal); }
.choice strong { font-size: 2rem; line-height: 1.1; color: var(--teal); }
.choice span:last-child { color: var(--muted); }
@media (max-width: 620px) { .choose { grid-template-columns: 1fr; } .toolbar.two { grid-template-columns: 1fr; } }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.label { margin: 18px 0 8px; font-size: .82rem; font-weight: 700; color: var(--muted); }
.choices { display: grid; gap: 8px; margin: 14px 0 0; padding: 0; border: 0; }
.choices .group-title { margin: 10px 0 0; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--coral); }
.choice-opt { display: flex; gap: 10px; align-items: flex-start; padding: 11px 13px; border: 1px solid var(--line); border-radius: 9px; background: #fff; cursor: pointer; }
.choice-opt:has(input:checked) { border-color: var(--teal); background: var(--teal-pale); box-shadow: inset 4px 0 0 var(--teal); }
.choice-opt input { margin-top: 3px; accent-color: var(--teal); }
.choice-opt span { flex: 1; }
.choice-opt em { font-style: normal; color: var(--muted); font-size: .85rem; white-space: nowrap; }
.seg button small { display: block; margin-top: 2px; font-weight: 400; font-size: .76rem; color: var(--muted); }
.playbar { display: flex; justify-content: space-between; align-items: center; gap: 10px; max-width: 760px; margin: 0 auto 12px; padding: 10px 14px; border-radius: 10px; background: var(--ink); color: #fff; font-size: .9rem; font-weight: 700; }
.playbar .btn.small { padding: 7px 12px; background: #fff; color: var(--teal); border: 0; font-size: .85rem; white-space: nowrap; }
#code-text, #code-in { font-family: ui-monospace, Consolas, monospace; font-size: .85rem; word-break: break-all; }
[hidden] { display: none !important; }
.tags { display: flex; flex-wrap: wrap; gap: 5px; margin: 6px 0 6px; }
.tag { padding: 2px 8px; border-radius: 999px; font-size: .72rem; font-weight: 700; line-height: 1.5; }
.tag.etape { background: var(--teal-pale); color: var(--teal); }
.tag.bac { background: var(--coral-pale); color: var(--ko); }
.tag.hp { background: #eef0f1; color: var(--muted); }
@media print { .tag { border: 1px solid #999; background: #fff !important; color: #333 !important; } }