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.sticky-col{background:var(--surface-2)}.th-max{display:block;font-weight:400;text-transform:none;letter-spacing:0;color:var(--text-muted)}.total-col,.grade-table tbody tr:hover .total-col{background:var(--accent-soft)}.group-head{text-align:center;border-bottom:1px solid var(--border)}.assign-head a{color:inherit;text-decoration:none}.assign-head a:hover{color:var(--accent)}.cell-btn{font:inherit;font-variant-numeric:tabular-nums;background:none;border:1px solid transparent;border-radius:var(--radius-sm);padding:2px 8px;color:var(--text);cursor:pointer}.cell-btn:hover{border-color:var(--accent)}.cell-btn.adjusted{background:var(--warning-soft);color:var(--warning);font-weight:600}button.tab{background:none;border:none;font:inherit;cursor:pointer}.history{list-style:none;padding:0;margin:0;display:grid;gap:10px}.history li{display:grid;gap:2px;padding-bottom:10px;border-bottom:1px solid var(--border)}.grade-block+.grade-block{border-top:1px solid var(--border);padding-top:14px}.grade-block-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px}.grade-block-head h3{margin:0;font-size:1rem}.grade-line{display:flex;justify-content:space-between;gap:12px;align-items:baseline}.grade-line a{text-decoration:none;color:var(--text);overflow-wrap:anywhere}.grade-line a:hover{color:var(--accent)}.opt-a{--opt: #d0193a}.opt-b{--opt: #1260c4}.opt-c{--opt: #a86d00}.opt-d{--opt: #23780b}.opt-e{--opt: #7a43b3}.opt-f{--opt: #0b7d7d}.opt-chip{display:inline-grid;place-items:center;width:1.7em;height:1.7em;border-radius:6px;background:var(--opt);color:#fff;font-size:.9em}.quiz-options{display:grid;gap:8px}.quiz-option{display:flex;gap:10px;align-items:center}.quiz-option input:not([type=radio]){flex:1}.board{min-height:100vh;background:var(--bg);color:var(--text);padding:20px max(20px,env(safe-area-inset-left)) 32px;display:flex;flex-direction:column;gap:20px;font-size:clamp(16px,1.5vw,24px)}.board-center{display:grid;place-items:center}.board-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}.board-eyebrow{font-size:.8em;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);font-weight:600}.board-tools,.board-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.board-pin-small{font-weight:700;font-variant-numeric:tabular-nums}.board-btn{font:inherit;font-weight:700;background:var(--accent);color:var(--on-accent);border:0;border-radius:12px;padding:12px 24px;min-height:52px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center}.board-btn.alt{background:transparent;color:var(--accent);border:2px solid var(--accent);font-size:.8em;min-height:44px;padding:8px 16px}.board-btn.big{font-size:1.3em;padding:16px 40px}.board-btn:disabled{opacity:.4;cursor:default}.board-error{background:var(--danger-soft);color:var(--danger);padding:10px 16px;border-radius:10px}.board-lobby{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;align-items:start;flex:1}@media(max-width:800px){.board-lobby{grid-template-columns:1fr}}.board-join{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:28px;text-align:center}.board-big-label{margin:0;color:var(--text-muted);font-weight:600}.board-url{margin:0 0 18px;font-size:1.8em;font-weight:700;overflow-wrap:anywhere}.board-pin{margin:0 0 16px;font-size:clamp(56px,8vw,120px);font-weight:800;letter-spacing:.06em;line-height:1;font-variant-numeric:tabular-nums}.board-qr{width:min(320px,70vw);height:auto;background:#fff;padding:10px;border-radius:12px}.board-teams h2{font-size:1.6em;margin-bottom:14px}.board-teams ul{list-style:none;padding:0;margin:0 0 24px;display:flex;flex-wrap:wrap;gap:10px}.board-teams li{background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:8px 18px;font-weight:700}.board-muted{color:var(--text-muted)}.board-teams li.waiting{background:transparent;color:var(--text-muted);border:2px dashed var(--border)}.board-panel{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:16px 20px;display:grid;gap:12px;font-size:.8em}.board-slots{list-style:none;padding:0;margin:0;display:grid;gap:8px}.board-slots li{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:8px 12px;border-radius:10px;background:var(--surface-2)}.board-slots li span:first-child{font-weight:700;min-width:8em}.board-slots li.free{outline:2px dashed var(--warning)}.board-question{display:flex;flex-direction:column;align-items:center;gap:20px;flex:1;width:100%;max-width:1280px;margin:0 auto;text-align:center}.board-question>*{width:100%}.board-rule{margin:0;width:auto!important;align-self:center;font-size:.85em;color:var(--text-muted);background:var(--accent-soft);border-radius:10px;padding:8px 14px}.board-stem{margin:0;font-size:clamp(28px,3.6vw,56px);font-weight:700;line-height:1.25;text-wrap:balance}.board-stem u{text-decoration:none;border-bottom:4px solid var(--accent);color:var(--accent);display:inline-block;min-width:3em;text-align:center}.board-options{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}.board-options>.board-opt{flex:0 1 calc(50% - 7px);min-width:min(100%,380px)}.board-opt{position:relative;overflow:hidden;display:flex;align-items:center;gap:16px;background:var(--opt);color:#fff;border-radius:14px;padding:18px 22px;min-height:90px;font-size:clamp(20px,2.2vw,34px);font-weight:600;transition:opacity .2s}.board-opt.dim{opacity:.6;filter:saturate(.4)}.board-opt.right{box-shadow:0 0 0 6px var(--success)}.board-shape{font-size:1.2em}.board-opt-text{flex:1;overflow-wrap:anywhere;text-align:center}.board-count{font-weight:800;font-size:1.1em;min-width:2.5em;text-align:right}.board-bar{position:absolute;left:0;bottom:0;height:8px;background:#ffffffd9}.board-status{display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap}.board-timer{display:inline-grid;place-items:center;width:2.6em;height:2.6em;border-radius:50%;background:var(--accent);color:var(--on-accent);font-size:2em;font-weight:800;font-variant-numeric:tabular-nums}.board-timer.urgent{background:var(--danger)}.board-answered{font-size:1.3em;font-weight:700}.board-explain{text-align:left;border-left:6px solid var(--success);background:var(--success-soft);color:var(--text);border-radius:12px;padding:16px 20px;font-size:1.15em}.board-leader{display:flex;flex-direction:column;gap:18px;max-width:900px;width:100%;margin:0 auto}.board-leader h2{font-size:2em}.board-leader ol{list-style:none;padding:0;margin:0;display:grid;gap:10px}.board-leader li{display:flex;justify-content:space-between;gap:12px;border:2px solid var(--accent);border-radius:14px;padding:14px 22px;font-size:1.5em;font-weight:700;font-variant-numeric:tabular-nums}.board-leader li.first{background:var(--accent-soft);font-size:2em}@media(prefers-reduced-motion:no-preference){.pop{animation:pop .35s}@keyframes pop{0%{transform:scale(.97)}60%{transform:scale(1.02)}to{transform:scale(1)}}}.play{min-height:100vh;min-height:100dvh;background:var(--bg);color:var(--text);padding:14px 16px 24px;display:flex;flex-direction:column;gap:14px}.play-brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--text-muted)}.play-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:22px 18px;display:grid;gap:14px}.play-card.center{text-align:center;justify-items:center}.play-card h1{font-size:1.6rem}.play-card p{margin:0}.play-card.result.ok{border-color:var(--success);background:var(--success-soft)}.play-card.result.bad{border-color:var(--danger);background:var(--danger-soft)}.play-input{font-size:1.3rem;min-height:56px}.play-input.pin{font-size:2rem;letter-spacing:.2em;text-align:center;font-variant-numeric:tabular-nums}.play-btn{font:inherit;font-size:1.2rem;font-weight:700;min-height:56px;border:0;border-radius:12px;background:var(--accent);color:var(--on-accent);cursor:pointer;display:grid;place-items:center;text-decoration:none}.play-btn:disabled{opacity:.4}.play-team{font-weight:700;font-size:1.1rem}.play-teams{display:grid;gap:10px}.play-team-btn{font:inherit;font-size:1.25rem;font-weight:700;min-height:64px;border-radius:14px;border:2px solid var(--accent);background:var(--accent-soft);color:var(--accent);cursor:pointer;display:grid;place-items:center;gap:2px}.play-team-btn:disabled{border-style:dashed;border-color:var(--border);background:transparent;color:var(--text-muted);cursor:default}.play-error{background:var(--danger-soft);color:var(--danger);border-radius:10px;padding:10px 14px}.play-qline{display:flex;justify-content:space-between;align-items:center;font-weight:600;color:var(--text-muted)}.play-timer{font-size:1.6rem;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums}.play-pad{display:grid;grid-template-columns:1fr 1fr;gap:12px;flex:1;min-height:55vh}.play-pad.n2{grid-template-columns:1fr}.play-opt{border:0;border-radius:16px;background:var(--opt);color:#fff;display:grid;place-items:center;align-content:center;gap:4px;cursor:pointer;font:inherit;min-height:110px;touch-action:manipulation}.play-opt:active{transform:scale(.97)}.play-opt:disabled{opacity:.6}.play-shape{font-size:3rem;line-height:1}.play-letter{font-size:1.3rem;font-weight:800}.play-locked{width:96px;height:96px;border-radius:20px;background:var(--opt);color:#fff;display:grid;place-items:center;font-size:3rem}.play-points{font-size:2.4rem!important;font-weight:800;color:var(--success)}.play-hint{color:var(--text-muted);font-size:.9rem;text-align:center}.print-only{display:none}@media print{body{background:#fff}body *{visibility:hidden}.modal[open]{position:absolute;inset:0;margin:0;width:100%;max-width:none;max-height:none;box-shadow:none;background:none;overflow:visible}.slips,.slips *{visibility:visible}.slips{display:grid!important;grid-template-columns:1fr 1fr;gap:0;position:absolute;left:0;top:0;width:100%}.slip{border:1px dashed #888;padding:14px 16px;break-inside:avoid;font:12pt/1.6 var(--font);color:#000}.slip code{background:none;padding:0;font-size:12pt}.slip-brand{font-size:9pt;color:#555}.slip-name{font-weight:700;font-size:13pt}.slip-help{font-size:9pt;color:#444;margin-top:6px}.modal::backdrop{background:none}}mark.hl{color:var(--accent);background:var(--accent-soft);border-radius:.3em;padding:0 .18em;font-weight:inherit;box-decoration-break:clone;-webkit-box-decoration-break:clone}.board-opt mark.hl,.choice-btn.right mark.hl,.choice-btn.wrong mark.hl{color:inherit;background:#ffffff3d}.board-explain mark.hl,.practice-explain mark.hl{color:var(--success);background:color-mix(in srgb,var(--success) 16%,transparent)}.hl-input{display:flex;flex-direction:column;align-items:flex-start;gap:4px}.hl-input textarea{width:100%}.alert-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 16px}.step-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.step-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.step-row.closed{background:var(--surface-2)}.step-row.closed .step-title{color:var(--text-muted)}.step-icon{font-size:1.5rem;width:2rem;text-align:center;flex:none}.step-main{flex:1 1 220px;min-width:0;display:grid;gap:2px}.step-title{overflow-wrap:anywhere}.step-actions{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-left:auto}.topic-icons{display:flex;flex-wrap:wrap;gap:2px}.muted-icon{opacity:.35}.kind-picker{display:flex;flex-wrap:wrap;gap:6px}.kind-picker label{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border:1px solid var(--border);border-radius:999px;cursor:pointer;background:var(--surface)}.kind-picker label.on{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:600}.kind-picker input{position:absolute;opacity:0;pointer-events:none}.kind-picker label:focus-within{box-shadow:var(--focus)}.progress{display:block;height:6px;border-radius:999px;background:var(--surface-2);overflow:hidden}.progress>span{display:block;height:100%;background:var(--accent);border-radius:inherit;transition:width .3s}.practice-card{max-width:760px;margin-inline:auto;width:100%}.practice-progress{max-width:760px;margin:0 auto 12px}.practice-meta{margin:0 0 6px}.practice-rule{margin:0 0 8px;font-size:.9rem;color:var(--text-muted);border-left:3px solid var(--accent-soft);padding-left:10px}.practice-stem{font-size:1.3rem;font-weight:600;line-height:1.45;margin:0 0 16px;overflow-wrap:anywhere}.practice-stem .gap{display:inline-block;min-width:4em;border-bottom:2px solid var(--text-muted);text-align:center;line-height:1.2}.practice-stem .gap.filled{border-color:var(--success);color:var(--success)}.choices{display:grid;gap:10px}.choice-btn{display:flex;align-items:center;gap:12px;width:100%;min-height:52px;padding:10px 14px;text-align:left;font:inherit;font-size:1.05rem;color:var(--text);background:var(--surface);border:2px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:border-color .15s,background .15s}.choice-btn:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft)}.choice-btn:focus-visible{outline:none;box-shadow:var(--focus)}.choice-btn:disabled{cursor:default;opacity:1}.choice-letter{flex:none;display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--surface-2);font-weight:700;font-size:.9rem}.choice-btn.chosen{border-color:var(--accent);background:var(--accent-soft)}.choice-btn.right{border-color:var(--success);background:var(--success);color:#fff}.choice-btn.wrong{border-color:var(--danger);background:var(--danger);color:#fff}.choice-btn.right .choice-letter,.choice-btn.wrong .choice-letter{background:#ffffff40}.choice-btn.dim{opacity:.55}.practice-explain{margin-top:14px;padding:12px 14px;border-radius:var(--radius);border-left:5px solid var(--success);background:var(--success-soft);line-height:1.5}.practice-explain.wrong{border-left-color:var(--danger);background:var(--danger-soft)}.practice-explain.wrong mark.hl{color:var(--danger);background:color-mix(in srgb,var(--danger) 14%,transparent)}.practice-card .row-actions{justify-content:flex-end;margin-top:16px}.practice-result{text-align:center}.practice-result .row-actions{justify-content:center}.practice-score{font-size:3rem;font-weight:800;margin:8px 0 0;color:var(--accent)}.practice-review{list-style:none;margin:0;padding:0;display:grid;gap:14px}.practice-review>li{padding-bottom:14px;border-bottom:1px solid var(--border)}.practice-review>li:last-child{border-bottom:0}.practice-review .practice-stem{font-size:1.05rem}.practice-review .choice-btn{min-height:40px;font-size:.95rem}@media(max-width:600px){.step-actions{margin-left:0;width:100%}.practice-stem{font-size:1.15rem}}.present-progress,.present-card{max-width:1100px;width:100%;margin:0 auto}.present .practice-stem{font-size:clamp(26px,3vw,46px)}.present .practice-rule,.present .practice-meta{font-size:.85em}.present .choice-btn{font-size:clamp(20px,2vw,32px);min-height:72px}.present .choice-letter{width:44px;height:44px;font-size:.8em}.present .practice-explain{font-size:clamp(18px,1.7vw,28px)}.board-timer.paused{opacity:.55}