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0;max-width:52px;min-width:0;height:68px;display:grid;place-items:center;border:2px solid var(--line);border-bottom-width:5px;border-radius:var(--r-m);background:var(--surface);font:700 30px var(--font-mono)}.pin-cell.filled{border-color:var(--c0)}.pin-cell.active{border-color:var(--accent);box-shadow:0 0 0 4px #ffd84d33}.pin.invalid .pin-cell{border-color:var(--bad)}.pin-hint{margin:0;text-align:center;font-size:13px;color:var(--muted)}.room-card{display:grid;gap:4px;padding:14px 16px;border:2px solid var(--line);border-radius:16px;background:var(--surface)}.room-card-top{display:flex;justify-content:space-between;align-items:center}.room-card-code,.code-pill{font-weight:700;letter-spacing:.08em;color:var(--accent)}.room-card-code{font-size:20px}.room-card-title{font-size:18px;font-weight:800;line-height:1.25}.room-card .muted{font-size:13px}.online{color:var(--c3);font-size:13px;font-weight:600}.name-title{margin-top:6px}.student h1.name-title{font-size:26px}.name-fields{display:grid;gap:10px}.color-label{margin:4px 0 0;font-size:13px}.color-pick{display:flex;align-items:center;gap:12px}.ava-lg{width:56px;height:56px;border-radius:16px;font-size:22px}.ava-sm{width:24px;height:24px;border-radius:8px;font-size:11px}.swatches{display:grid;grid-template-columns:repeat(4,36px);gap:8px}.swatch{width:36px;height:36px;padding:0;border:0;border-radius:10px;background:var(--c);cursor:pointer}.swatch[aria-checked=true]{outline:3px solid var(--ink);outline-offset:2px}.code-pill{padding:4px 10px;border:2px solid var(--line);border-radius:10px;background:var(--surface);font-size:16px}.test-card{display:grid;gap:10px;padding:16px;border:2px solid var(--line);border-bottom-width:5px;border-radius:var(--r-l);background:var(--surface)}.student .test-card h1{font-size:23px;line-height:1.15}.chip-meta{padding:4px 10px;border-radius:var(--r-s);background:var(--surface-2);font-size:13px;font-weight:600}.rules{display:grid;gap:7px;margin:0;padding:0;list-style:none;font-size:14px;color:color-mix(in srgb,var(--ink) 85%,var(--muted))}.rules li{display:flex;align-items:center;gap:10px}.rule-n{flex:none;display:grid;place-items:center;width:22px;height:22px;border-radius:6px;background:var(--c);color:var(--on-c);font-weight:800;font-size:12px}.players{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 0;padding:0;list-style:none}.player{display:inline-flex;align-items:center;gap:7px;padding:4px 11px 4px 4px;border:2px solid var(--line);border-radius:var(--r-m);background:var(--surface);font-size:13px;font-weight:700}.player.me{border-color:var(--accent);background:var(--surface-2)}.waiting{display:grid;justify-items:center;gap:6px;margin-top:auto;padding-top:12px;text-align:center}.waiting .muted{font-size:12px}.dots{display:flex;gap:6px}.dots i{width:9px;height:9px;border-radius:50%;background:var(--accent)}.play-top{display:grid;gap:8px}.segs{display:flex;gap:4px}.pseg{flex:1;height:10px;border-radius:5px;background:var(--surface-2)}.pseg-ok{background:var(--ok)}.pseg-bad{background:var(--bad)}.pseg-partial{background:repeating-linear-gradient(135deg,var(--partial) 0 3px,color-mix(in srgb,var(--partial) 45%,transparent) 3px 6px)}.pseg-done{background:var(--c0)}.pseg-cur{background:var(--accent)}.play-bar{display:flex;justify-content:space-between;align-items:center;gap:8px}.count{font-weight:700;font-size:16px}.streak{padding:3px 10px;border-radius:var(--r-s);background:var(--surface-2);color:var(--accent);font-size:12px;font-weight:700}.qtimer{display:inline-flex;align-items:center;gap:8px}.qtimer-bar{width:70px;height:8px;border-radius:4px;background:var(--surface-2);overflow:hidden}.qtimer-bar span{display:block;height:100%;background:var(--accent);transform-origin:left}.qtimer-clock{padding:3px 10px;border-radius:var(--r-s);background:var(--accent);color:var(--on-accent);font-weight:700;font-size:15px}.qtimer.urgent .qtimer-clock,.qtimer.urgent .qtimer-bar span{background:var(--danger);color:var(--on-danger)}.room-left{font-size:13px;color:var(--muted)}.sound-toggle{display:grid;place-items:center;width:36px;height:36px;padding:0;border:0;border-radius:10px;background:transparent;color:var(--muted);cursor:pointer}.sound-toggle:hover{color:var(--ink);background:var(--surface)}.qv{display:grid;gap:10px}.qcard{display:grid;gap:12px;padding:14px;border:2px solid var(--line);border-radius:var(--r-l);background:var(--surface)}.qcard:empty{display:none}.qv-prompt{margin:0;font-size:19px;font-weight:800;line-height:1.3;white-space:pre-wrap}.qv-revealed .qv-prompt{opacity:.6}.qv-image{display:block;justify-self:center;max-width:100%;max-height:240px;border-radius:var(--r-m)}.qv-hint{margin:0;font-size:12px}.opts{display:grid;gap:8px}.opt{display:flex;align-items:center;gap:12px;min-height:var(--tap-student);padding:6px 14px 6px 7px;border:2px solid var(--line);border-bottom:5px solid var(--c);border-radius:14px;background:var(--surface-2);color:var(--ink);font:600 17px var(--font-ui);text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent}.opt.sel{border-color:var(--c);background:color-mix(in srgb,var(--c) 18%,var(--surface-2))}.opt:disabled{cursor:default}.opt-shape{flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--c);color:var(--on-c);font-size:18px;line-height:1}.opt-body{flex:1;display:grid;gap:6px}.opt-img{max-width:100%;max-height:120px;border-radius:var(--r-s);object-fit:contain;justify-self:start}.opt-check{flex:none;display:grid;place-items:center;width:28px;height:28px;border:2px solid var(--line);border-radius:8px;font-weight:800}.opt.sel .opt-check{border-color:var(--c);background:var(--c);color:var(--on-c)}.opt-mark{font-weight:800;font-size:20px}.opts.revealed .opt:not(.is-correct,.is-wrong){opacity:.5}.opt.is-correct{border-color:var(--ok);background:var(--ok-bg)}.opt.is-wrong{border-color:var(--bad);background:var(--bad-bg)}.is-correct>.opt-mark,.gap-mark.is-correct,.match-mark.is-correct{color:var(--ok)}.is-wrong>.opt-mark,.gap-mark.is-wrong,.match-mark.is-wrong{color:var(--bad)}.gaps{margin:0;font-size:20px;font-weight:500;line-height:2.5;white-space:pre-wrap}.gap-wrap{display:inline-flex;align-items:center;gap:4px}.gap{height:40px;min-width:84px;padding:0 10px;border:2px solid var(--line);border-radius:10px;background:var(--surface-2);color:var(--ink);font:700 18px var(--font-ui);text-align:center;vertical-align:middle}.gap.filled{border-color:var(--c0)}.gap:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px #ffd84d33}.gap.is-correct{border-color:var(--ok);background:var(--ok-bg)}.gap.is-wrong{border-color:var(--bad);background:var(--bad-bg)}.gap-mark{font:700 16px var(--font-mono)}.correct-box{padding-top:10px;border-top:2px dashed var(--line)}.correct-list{margin:6px 0 0;padding-left:22px;font-size:15px}.match{display:grid;gap:9px}.match-row{display:grid;grid-template-columns:minmax(0,1fr) 18px minmax(0,1fr);align-items:center;gap:6px}.match-left{display:flex;align-items:center;gap:8px;min-height:52px;padding:4px 12px;border:2px solid var(--line);border-bottom:4px solid var(--c);border-radius:var(--r-m);background:var(--surface);font-weight:700;font-size:17px;overflow-wrap:anywhere}.match-arrow{text-align:center;color:var(--muted)}.match-correct{grid-column:1 / -1;font-size:14px;color:var(--ok)}.slot{position:relative;display:flex;align-items:center;justify-content:center;min-height:52px;padding:2px;border:2px dashed color-mix(in srgb,var(--muted) 65%,transparent);border-radius:var(--r-m)}.slot.filled{border-style:solid;border-color:var(--c0);background:var(--surface-2)}.slot.over{border-color:var(--accent);background:#ffd84d1f}.slot.is-correct{border-color:var(--ok);background:var(--ok-bg)}.slot.is-wrong{border-color:var(--bad);background:var(--bad-bg)}.slot .match-mark{position:absolute;right:8px;font-weight:800}.slot-hint{font-size:13px;color:var(--muted);text-align:center}.pool{display:flex;flex-wrap:wrap;gap:10px;min-height:80px;padding:14px;border:2px dashed var(--line);border-radius:14px;background:color-mix(in srgb,var(--bg) 70%,#000)}.pool.over{border-color:var(--accent)}.chip{display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:0 16px;border:0;border-bottom:4px solid color-mix(in srgb,var(--surface-2) 50%,#000);border-radius:var(--r-m);background:var(--surface-2);color:var(--ink);font:700 16px var(--font-ui);cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.slot .chip{width:100%;min-height:44px;justify-content:center;border-bottom:0;background:transparent}.chip.sel,.chip.lifted{background:var(--accent);color:var(--on-accent);border-bottom-color:var(--accent-edge)}.chip.dragging{opacity:.35}.chip.lifted{transform:rotate(-4deg);box-shadow:0 14px 24px #0000008c;cursor:grabbing}.chip-img{max-height:40px;max-width:80px;border-radius:var(--r-s);object-fit:contain}.sheet-spacer{height:190px;flex:none}.sheet{--k: var(--ok);--kb: var(--ok-bg);position:fixed;z-index:20;left:0;right:0;bottom:0;display:grid;gap:14px;max-width:480px;margin:0 auto;padding:22px 20px max(24px,env(safe-area-inset-bottom));border-top:3px solid var(--k);border-radius:var(--r-xl) var(--r-xl) 0 0;background:var(--kb);box-shadow:0 -12px 32px #00000059}.sheet-partial{--k: var(--partial);--kb: var(--partial-bg)}.sheet-bad{--k: var(--bad);--kb: var(--bad-bg)}.sheet-row{display:flex;align-items:center;gap:14px}.sheet-icon{flex:none;display:grid;place-items:center;width:60px;height:60px;border-radius:50%;background:var(--k);color:var(--on-c);font-size:30px;font-weight:800}.sheet-text{flex:1;display:grid;min-width:0}.sheet-text b{font-size:26px;line-height:1.1}.sheet-text span{font-size:14px;color:color-mix(in srgb,var(--k) 40%,#fff)}.sheet-score{font-weight:700;font-size:22px;color:var(--k)}.sheet .sheet-next{--btn-bg: var(--k);--btn-fg: var(--on-c);--btn-edge: color-mix(in srgb, var(--k) 65%, #000);border-color:transparent;font-weight:800}.result,.notice{flex:1;display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center}.result>.label-caps{margin-top:12px}.result h1,.notice h1{font-size:30px}@property --p{syntax: "<percentage>"; inherits: false; initial-value: 0%;}.ring{display:grid;place-items:center;width:170px;height:170px;border-radius:50%;background:conic-gradient(var(--accent) 0 var(--p),var(--surface-2) var(--p) 100%)}.ring>div{display:grid;place-content:center;width:138px;height:138px;border-radius:50%;background:var(--bg)}.ring b{font-size:40px;line-height:1}.ring span{margin-top:4px;font-size:13px;color:var(--muted)}.tiles{display:grid;gap:10px;width:100%}.tile{display:grid;padding:10px 6px;border:2px solid var(--line);border-radius:14px;background:var(--surface)}.tile span{font-size:11px;font-weight:700;text-transform:uppercase;color:var(--muted)}.tile b{font-size:26px;line-height:1.35}.tile small{font-size:13px;color:var(--muted)}.tile-main{border-color:transparent;background:var(--accent);color:var(--on-accent);box-shadow:0 4px 0 var(--accent-edge)}.tile-main span{color:inherit;opacity:.75}.tile-main b{font-size:32px;line-height:1.1}.result-strip-title{align-self:stretch;text-align:left}.strip{display:flex;flex-wrap:wrap;gap:7px;align-self:stretch}.strip-cell .st{width:30px;height:36px;border-radius:9px}.result .student-actions,.notice .student-actions{width:100%}.notice-icon{display:grid;place-items:center;width:72px;height:72px;margin-top:15vh;border-radius:50%;background:var(--bad);color:var(--on-c);font-size:36px;font-weight:800}.notice-icon.ok{background:var(--ok)}.notice>.label-caps{margin-top:12px}.notice>.label-caps+.notice-icon{margin-top:10vh}.notice p{margin:0}.confetti{position:fixed;inset:0;z-index:5;overflow:hidden;pointer-events:none}.confetti span{position:absolute;top:-30px;animation:qp-fall linear 2 both}.preview-banner{margin:0;padding:10px 14px;border:2px solid var(--partial);border-radius:var(--r-m);background:var(--partial-bg);font-size:14px}.preview-banner a{color:var(--accent)}.st{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:var(--r-s);border:2px solid currentColor;font:700 15px var(--font-mono)}.st-ok{color:var(--ok);background:var(--ok-bg)}.st-partial{color:var(--partial);background:repeating-linear-gradient(135deg,var(--partial-bg) 0 4px,transparent 4px 8px)}.st-bad{color:var(--bad);background:var(--bad-bg)}.st-none{color:var(--muted);border-style:dashed}@media(prefers-reduced-motion:no-preference){.opt,.chip,.slot,.gap{transition:background-color .12s,border-color .12s,transform .1s var(--ease-out)}.opt:active:not(:disabled){transform:translateY(2px)}.player,.sheet-icon{animation:qp-pop .45s var(--ease-out)}.sheet{animation:qp-rise .32s var(--ease-out)}.dots i{animation:qp-pulse 1.2s infinite}.dots i:nth-child(2){animation-delay:.2s}.dots i:nth-child(3){animation-delay:.4s}.qtimer.urgent .qtimer-clock{animation:qp-pulse 1s ease-in-out infinite}.qtimer-bar span{transition:transform .25s linear}.ring{animation:ring-fill 1s var(--ease-out) both}@keyframes ring-fill{0%{--p: 0%}}}@media(prefers-reduced-motion:reduce){.confetti{display:none}}