:root{--ground: #f4f3ec;--surface: #ffffff;--ink: #1a2420;--ink-2: #47554e;--board: #1d3b33;--brass: #9a6a2f;--line: #d9d6c9;--picked: #e8f0ea;--urgent: #a8321f}@media (prefers-color-scheme: dark){:root{--ground: #121816;--surface: #1b2320;--ink: #eef1ec;--ink-2: #a8b4ad;--board: #d8e4dc;--brass: #d3a15e;--line: #33403a;--picked: #26332d;--urgent: #f08a76}}*{box-sizing:border-box}body{margin:0;background:var(--ground);color:var(--ink);font:17px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-text-size-adjust:100%}.app{min-height:100dvh;display:flex;flex-direction:column}.card{margin:auto;padding:28px 22px 34px;max-width:34rem;width:100%;text-align:center}.card-title{margin:0 0 12px;font-size:1.7rem;line-height:1.25;color:var(--board)}.lead{margin:0 0 22px;color:var(--ink-2)}.eleve-badge{margin:0 0 18px;padding:8px 16px;display:inline-block;border:1px solid var(--brass);border-radius:999px;color:var(--brass);font-weight:700}.sent{display:grid;place-items:center;width:84px;height:84px;margin:26px auto 20px;border-radius:50%;background:var(--picked);color:var(--brass);font-size:2.6rem;line-height:1}.note{margin:0;font-size:.95rem;color:var(--ink-2)}.rules{margin:0 0 26px;padding:16px 20px 16px 38px;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:14px;color:var(--ink-2)}.rules li{margin:6px 0}.btn{display:block;width:100%;min-height:54px;padding:14px 20px;border:0;border-radius:14px;background:var(--board);color:var(--ground);font:inherit;font-weight:600;cursor:pointer}.btn:disabled{opacity:.35}.btn-big{min-height:64px;font-size:1.15rem}.btn-ghost{background:transparent;color:var(--ink-2);border:1px solid var(--line)}.btn+.btn{margin-top:10px}.devoir-liste{display:flex;flex-direction:column;gap:10px;text-align:left}.devoir-item{display:flex;flex-direction:column;gap:4px;width:100%;min-height:64px;padding:14px 18px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink);font:inherit;text-align:left;cursor:pointer}.devoir-titre{font-weight:600;font-size:1.05rem}.devoir-detail{font-size:.9rem;color:var(--ink-2)}.devoir-item.repris{border-color:var(--brass);background:var(--picked)}.devoir-item.fini{opacity:.55;cursor:default;background:transparent}.rappel{margin:18px 0 22px;padding:14px 18px;border:1px solid var(--brass);border-radius:14px;background:var(--picked);color:var(--ink);font-weight:600}.code-input{width:100%;margin:0 0 16px;padding:16px;border:2px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink);font:600 1.35rem/1 ui-monospace,SF Mono,Menlo,monospace;letter-spacing:.08em;text-align:center}.code-input:focus{outline:none;border-color:var(--brass)}.shake{animation:shake .3s;border-color:var(--urgent)}@keyframes shake{25%{transform:translate(-6px)}75%{transform:translate(6px)}}.spinner{width:34px;height:34px;margin:26px auto 0;border:3px solid var(--line);border-top-color:var(--brass);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.quiz{display:flex;flex-direction:column;height:100dvh}.bar{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--board);color:var(--ground)}.bar-title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600;font-size:.95rem}.clock{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;gap:1px;min-width:5.4rem;padding:5px 10px;border-radius:10px;background:#ffffff1f}.clock-label{font-size:.62rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;opacity:.75}.clock-value{font:700 1.5rem/1 ui-monospace,SF Mono,Menlo,monospace;font-variant-numeric:tabular-nums}.clock.warn{background:var(--brass);color:#fff}.clock.urgent{background:var(--urgent);color:#fff;animation:pulse 1s ease-in-out infinite}@keyframes pulse{50%{opacity:.55}}.flash{position:fixed;inset:0;z-index:10;display:grid;place-content:center;gap:8px;text-align:center;background:#000000c7;color:#fff;pointer-events:none;animation:flash-out 2.6s forwards}.flash-value{font:700 4.5rem/1 ui-monospace,SF Mono,Menlo,monospace;font-variant-numeric:tabular-nums}.flash-label{font-size:1.15rem;font-weight:600}@keyframes flash-out{0%{opacity:0}10%,75%{opacity:1}to{opacity:0}}.timer-hero{margin:0 0 22px;padding:18px;border:2px solid var(--brass);border-radius:16px;background:var(--surface)}.timer-hero-label{font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2)}.timer-hero-value{margin-top:4px;font:700 2.6rem/1.1 ui-monospace,SF Mono,Menlo,monospace;font-variant-numeric:tabular-nums;color:var(--brass)}.timer-hero.urgent{border-color:var(--urgent)}.timer-hero.urgent .timer-hero-value{color:var(--urgent)}body.demo .app{padding-bottom:26px}body.demo .quiz{height:calc(100dvh - 26px)}.demo-tag{position:fixed;left:0;right:0;bottom:0;z-index:5;padding:5px 10px calc(5px + env(safe-area-inset-bottom));background:var(--brass);color:#fff;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-align:center;pointer-events:none}.progress{display:flex;gap:6px;padding:10px 14px;overflow-x:auto;background:var(--surface);border-bottom:1px solid var(--line)}.dot{flex:0 0 auto;width:30px;height:30px;border:1px solid var(--line);border-radius:50%;background:transparent}.dot.full{background:var(--brass);border-color:var(--brass)}.dot.here{outline:2px solid var(--board);outline-offset:2px}.body{flex:1;overflow-y:auto;padding:20px 16px 8px}.question{max-width:34rem;margin:0 auto}.q-num{margin:0 0 6px;font-size:.9rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--brass)}.q-text{margin:0 0 18px;font-size:1.35rem;line-height:1.3}.player{padding:10px 14px 8px;background:var(--surface);border-bottom:1px solid var(--line)}.player[hidden]{display:none}.audio{width:100%;display:block}.player-note{margin:5px 0 0;font-size:.78rem;text-align:center;color:var(--ink-2)}.choices{display:flex;flex-direction:column;gap:10px}.choice{display:flex;align-items:center;gap:14px;width:100%;min-height:60px;padding:12px 16px;border:2px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink);font:inherit;text-align:left;cursor:pointer}.choice.picked{border-color:var(--brass);background:var(--picked)}.letter{flex:0 0 auto;display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--line);font-weight:700}.choice.picked .letter{background:var(--brass);color:#fff}.choice-text{flex:1}.q-image{display:block;width:100%;max-width:520px;max-height:34vh;margin:0 auto 18px;object-fit:contain;border-radius:12px;background:var(--line)}.choice.has-image{flex-direction:column;align-items:flex-start;gap:8px}.choice-image{display:block;width:100%;max-height:26vh;object-fit:contain;border-radius:10px;background:var(--line);pointer-events:none}@media (orientation: landscape) and (max-height: 480px){.q-image{max-height:22vh;margin-bottom:10px}.choice-image{max-height:30vh}}.nav{display:flex;gap:10px;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:var(--surface);border-top:1px solid var(--line)}.nav .btn{flex:1}.final-note{margin:16px 0 0;font-size:.85rem;text-align:center;color:var(--ink-2)}