.dss-scene,.dss-writeit{--dss-ink:var(--sh-ink,var(--al-ink,#17181b));--dss-muted:var(--sh-muted,var(--al-muted,#51545c));--dss-line:var(--sh-line,var(--al-line,#d9dce1));--dss-paper:var(--sh-paper,var(--al-paper,#fff));--dss-accent:var(--sh-accent,var(--al-accent,#68508f));--dss-soft:var(--sh-soft,var(--al-soft,#f0ebf7));--dss-green:var(--sh-green,#386751);--dss-sage:var(--sh-sage,#e5eee7);--dss-rust:var(--rust,#98482f);--dss-warm:var(--warm,#faece2);--dss-blue:var(--sh-blue,#e3edf3);--dss-mono:var(--mono,"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace);--dss-sans:var(--sans,"IBM Plex Sans",system-ui,sans-serif);--dss-ease:var(--ease,cubic-bezier(.2,.8,.2,1));--dss-head:color-mix(in srgb,var(--dss-paper) 88%,var(--dss-ink));--dss-gridline:color-mix(in srgb,var(--dss-line) 70%,transparent);--dss-ref1:#6a4fa0;--dss-ref2:#d0781f;--dss-ref3:#1a86a8;--dss-ref4:#3f8f4a;min-width:0;color:var(--dss-ink);font-family:var(--dss-sans)}.sh-player[data-appearance=dark] .dss-scene,.sh-player[data-appearance=dark] .dss-writeit,:root[data-theme=dark] .dss-scene,:root[data-theme=dark] .dss-writeit,[data-theme=dark] .dss-scene,[data-theme=dark] .dss-writeit{--dss-ref1:#b19be0;--dss-ref2:#e6a35a;--dss-ref3:#5fbcd6;--dss-ref4:#7fc48a}.sh-player[data-appearance=light] .dss-scene,.sh-player[data-appearance=light] .dss-writeit{--dss-ref1:#6a4fa0;--dss-ref2:#d0781f;--dss-ref3:#1a86a8;--dss-ref4:#3f8f4a}.dss-scene *,.dss-scene :after,.dss-scene :before,.dss-writeit *,.dss-writeit :after,.dss-writeit :before{box-sizing:border-box}.dss-scene p,.dss-writeit p{margin:0}.dss-scene .sr-only,.dss-writeit .sr-only{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}.dss-scene button,.dss-writeit button{font:inherit;color:inherit;cursor:pointer;touch-action:manipulation}.dss-scene button:disabled,.dss-writeit button:disabled{cursor:default}.dss-scene button:focus-visible,.dss-writeit button:focus-visible{outline:3px solid var(--dss-accent);outline-offset:2px}.dss-sheet{display:grid;gap:10px;min-width:0}.dss-bar{display:flex;align-items:stretch;gap:0;min-width:0;border:1px solid var(--dss-line);border-radius:10px;background:var(--dss-paper);overflow:hidden}.dss-namebox{place-items:center;min-width:64px;padding:0 10px;font:600 14px var(--dss-mono);color:var(--dss-accent);background:var(--dss-head)}.dss-fx,.dss-namebox{flex:none;display:grid;border-right:1px solid var(--dss-line)}.dss-fx{place-items:center;width:34px;font:italic 600 14px Georgia,Times New Roman,serif;color:var(--dss-muted)}.dss-sheet .dss-formula{flex:1 1;min-width:0;border:0;padding:10px 12px;background:transparent;color:var(--dss-ink);font:16px/1.4 var(--dss-mono)}.dss-sheet .dss-formula:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--dss-accent)}.dss-sheet .dss-formula[readonly]{color:var(--dss-muted)}.dss-bar[data-mode=edit] .dss-namebox{background:var(--dss-soft)}.dss-sheet .dss-bar-btn{flex:none;min-width:40px;border:0;border-left:1px solid var(--dss-line);background:var(--dss-head);color:var(--dss-muted);font-size:15px}.dss-sheet .dss-bar-btn--ok{color:var(--dss-green);font-weight:600}.dss-sheet .dss-bar-btn:hover{background:var(--dss-soft);color:var(--dss-ink)}.dss-sheet .dss-bar-btn:focus-visible{outline-offset:-3px}.dss-chips{display:flex;flex-wrap:wrap;gap:6px}.dss-sheet .dss-chip{min-height:38px;padding:6px 12px;border:1px solid var(--dss-line);border-radius:999px;background:var(--dss-paper);color:var(--dss-accent);font:600 14px var(--dss-mono);transition:background .18s var(--dss-ease),border-color .18s var(--dss-ease)}.dss-sheet .dss-chip:hover:not(:disabled){border-color:var(--dss-accent);background:var(--dss-soft)}.dss-sheet .dss-chip:disabled{color:var(--dss-muted);opacity:.6}.dss-frame{position:relative;display:grid;gap:0;min-width:0}.dss-tab{justify-self:start;padding:5px 14px 4px;border:1px solid var(--dss-line);border-bottom:0;border-radius:8px 8px 0 0;background:var(--dss-head);font:500 12px var(--dss-mono);letter-spacing:.04em;color:var(--dss-muted)}.dss-scroll{overflow-x:auto;overscroll-behavior-x:contain;scrollbar-gutter:stable;border:1px solid var(--dss-line);border-radius:0 12px 12px 12px;background:var(--dss-paper);box-shadow:0 4px 0 var(--dss-line)}.dss-scroll[data-overflow=both],.dss-scroll[data-overflow=right]{-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 36px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 36px),transparent)}.dss-scroll[data-overflow=left]{-webkit-mask-image:linear-gradient(270deg,#000 calc(100% - 36px),transparent);mask-image:linear-gradient(270deg,#000 calc(100% - 36px),transparent)}.dss-cue{display:none;align-items:center;gap:6px;margin:8px 0 0;font:500 13px/1.3 var(--dss-mono);letter-spacing:.02em;color:var(--dss-muted)}.dss-scroll[data-overflow]+.dss-cue{display:flex}.dss-cue:before{content:"⇢";font-size:15px;color:var(--dss-accent)}.dss-frame:not(:has(.dss-tab)) .dss-scroll{border-radius:12px}.dss-grid{display:grid;grid-template-columns:var(--dss-template);min-width:max-content;width:100%;font-size:17px;line-height:1.3}.dss-row{display:grid;grid-template-columns:subgrid;grid-column:1/-1}.dss-row--head{position:sticky;top:0;z-index:1}.dss-col,.dss-corner,.dss-rownum{display:grid;place-items:center;min-height:32px;background:var(--dss-head);color:var(--dss-muted);font:500 13px var(--dss-mono);border-bottom:1px solid var(--dss-line);border-right:1px solid var(--dss-gridline);-webkit-user-select:none;user-select:none}.dss-col{min-height:32px}.dss-rownum{min-width:44px;border-right:1px solid var(--dss-line)}.dss-corner,.dss-rownum{position:sticky;left:0;z-index:2}.dss-col[data-active],.dss-rownum[data-active]{background:var(--dss-soft);color:var(--dss-accent);font-weight:600}.dss-cell{position:relative;min-width:0;min-height:44px;scroll-margin:96px 0 150px;border-right:1px solid var(--dss-gridline);border-bottom:1px solid var(--dss-gridline);background:var(--dss-paper);transition:background .18s var(--dss-ease),box-shadow .18s var(--dss-ease)}.dss-sheet .dss-cell-btn{display:block;width:100%;height:100%;min-height:44px;padding:8px 12px;border:0;background:transparent;color:inherit;text-align:left;font:inherit;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dss-sheet .dss-cell-btn:focus-visible{outline:none;box-shadow:inset 0 0 0 3px var(--dss-accent)}.dss-cell[data-num] .dss-cell-btn{text-align:right;font-family:var(--dss-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.dss-cell[data-error] .dss-cell-btn{font-family:var(--dss-mono);color:var(--dss-rust);font-weight:600}.dss-cell[data-formula] .dss-text{color:var(--dss-ink)}.dss-text{display:block;overflow:hidden;text-overflow:ellipsis;white-space:pre}.dss-cell:hover{background:color-mix(in srgb,var(--dss-soft) 60%,transparent)}.dss-cell[data-selected]{z-index:2;box-shadow:inset 0 0 0 2px var(--dss-accent);background:color-mix(in srgb,var(--dss-soft) 45%,transparent)}.dss-cell[data-selected]:has(.dss-cell-btn:focus-visible){box-shadow:inset 0 0 0 3px var(--dss-accent)}.dss-cell[data-editing]{z-index:3;box-shadow:inset 0 0 0 2px var(--dss-accent);background:var(--dss-paper)}.dss-sheet .dss-cell-input{position:absolute;inset:0;width:100%;height:100%;min-width:0;padding:8px 12px;border:0;background:transparent;color:var(--dss-ink);font:16px var(--dss-mono);outline:none}.dss-cell[data-locked]:hover{background:var(--dss-paper)}.dss-cell[data-locked] .dss-cell-btn{cursor:default}.dss-cell[data-ref="1"]{box-shadow:inset 0 0 0 2px var(--dss-ref1);background:color-mix(in srgb,var(--dss-ref1) 12%,transparent)}.dss-cell[data-ref="2"]{box-shadow:inset 0 0 0 2px var(--dss-ref2);background:color-mix(in srgb,var(--dss-ref2) 12%,transparent)}.dss-cell[data-ref="3"]{box-shadow:inset 0 0 0 2px var(--dss-ref3);background:color-mix(in srgb,var(--dss-ref3) 12%,transparent)}.dss-cell[data-ref="4"]{box-shadow:inset 0 0 0 2px var(--dss-ref4);background:color-mix(in srgb,var(--dss-ref4) 12%,transparent)}.dss-cell[data-fill]{box-shadow:inset 0 0 0 2px var(--dss-accent);background:color-mix(in srgb,var(--dss-soft) 70%,transparent)}.dss-cell[data-fill] .dss-cell-btn{opacity:.75}.dss-cell[data-mark=target]{box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--dss-accent) 55%,transparent);background:color-mix(in srgb,var(--dss-soft) 55%,transparent)}.dss-cell[data-mark=target][data-selected]{box-shadow:inset 0 0 0 2px var(--dss-accent)}.dss-cell[data-mark=hint]{background:var(--dss-blue)}.dss-cell[data-mark=filled],.dss-cell[data-mark=ok]{background:var(--dss-sage);box-shadow:inset 0 0 0 2px var(--dss-green)}.dss-cell[data-mark=filled] .dss-cell-btn,.dss-cell[data-mark=ok] .dss-cell-btn{color:var(--dss-green);font-weight:600}.dss-cell[data-mark=miss]{background:var(--dss-warm);box-shadow:inset 0 0 0 2px var(--dss-rust)}.dss-cell[data-mark=miss] .dss-cell-btn{color:var(--dss-rust)}.dss-cell[data-mark=header]{background:var(--dss-head)}.dss-cell[data-mark=header] .dss-cell-btn{font-weight:600}.dss-sheet .dss-handle{position:absolute;right:-12px;bottom:-12px;z-index:4;width:24px;height:24px;padding:0;border:0;background:transparent;cursor:crosshair;touch-action:none}.dss-sheet .dss-handle:before{content:"";position:absolute;inset:7px;border:2px solid var(--dss-paper);background:var(--dss-accent);border-radius:2px}.dss-sheet .dss-handle:focus-visible:before,.dss-sheet .dss-handle:hover:before{inset:5px}.dss-sheet .dss-handle:focus-visible{outline:3px solid var(--dss-accent);outline-offset:0;border-radius:4px}.dss-fill-note{margin-top:14px;font:14px var(--dss-mono);color:var(--dss-accent)}.dss-sheet .dss-cell--sort{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;min-height:44px;padding:8px 12px;border:0;border-right:1px solid var(--dss-gridline);border-bottom:1px solid var(--dss-line);background:var(--dss-head);color:var(--dss-ink);font:600 15px var(--dss-sans);text-align:left;white-space:nowrap}.dss-sheet .dss-cell--sort:hover{background:var(--dss-soft)}.dss-sheet .dss-cell--sort[data-active]{color:var(--dss-accent)}.dss-sheet .dss-cell--sort:focus-visible{outline-offset:-3px}.dss-sort-arrow{font-size:12px;opacity:.55}.dss-cell--sort[data-active] .dss-sort-arrow{opacity:1}.dss-scene .dss-field[data-placed]{color:var(--dss-muted);border-style:dashed}.dss-scene{display:grid;gap:14px;min-width:0}.dss-detail{min-height:26px;font-size:17px;line-height:1.5;color:var(--dss-muted);scroll-margin:96px 0 150px}.dss-detail[data-state=done]{color:var(--dss-green)}.dss-detail[data-state=wrong]{color:var(--dss-rust)}.dss-detail:empty{min-height:0}.dss-unavailable{color:var(--dss-muted);text-align:center}.dss-filter{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.dss-filter-label{font:500 14px var(--dss-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--dss-muted);margin-right:4px}.dss-scene .dss-filter-opt{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:6px 14px 6px 10px;border:1px solid var(--dss-line);border-radius:999px;background:var(--dss-paper);color:var(--dss-ink);font-size:16px;transition:background .18s var(--dss-ease),border-color .18s var(--dss-ease)}.dss-scene .dss-filter-opt:hover{border-color:var(--dss-accent)}.dss-scene .dss-filter-opt[aria-pressed=true]{background:var(--dss-soft);border-color:var(--dss-accent)}.dss-filter-box{display:grid;place-items:center;width:18px;height:18px;border:1.5px solid var(--dss-muted);border-radius:4px;font-size:12px;line-height:1}.dss-filter-opt[aria-pressed=true] .dss-filter-box{background:var(--dss-accent);border-color:var(--dss-accent);color:var(--dss-paper)}.dss-scene[data-state=done] .dss-filter-opt[aria-pressed=true]{background:var(--dss-sage);border-color:var(--dss-green)}.dss-scene[data-state=done] .dss-filter-opt[aria-pressed=true] .dss-filter-box{background:var(--dss-green);border-color:var(--dss-green)}.dss-pivot{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:16px;align-items:start;container-type:inline-size}.dss-scene--pivot{grid-template-columns:minmax(0,1fr) 270px;align-items:start}.dss-scene--pivot .dss-sheet{--dss-col-min:72px}.dss-scene--pivot .dss-grid{font-size:15px;grid-template-columns:44px repeat(var(--dss-cols,5),minmax(var(--dss-col-min,72px),auto))}.dss-scene--pivot .dss-sheet .dss-cell-btn{padding:6px 9px;min-height:38px}.dss-scene--pivot .dss-cell{min-height:38px}.dss-scene--pivot .dss-pivot{grid-template-columns:minmax(0,1fr)}.dss-scene--pivot>.dss-detail,.dss-scene--pivot>.dss-line{grid-column:1/-1}.dss-fields{display:grid;gap:10px}.dss-fields-title{font:500 13px var(--dss-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--dss-muted)}.dss-field-list{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none}.dss-scene .dss-field{min-height:38px;padding:6px 12px;border:1px solid var(--dss-line);border-radius:8px;background:var(--dss-paper);color:var(--dss-ink);font-size:15px;cursor:grab;transition:background .18s var(--dss-ease),border-color .18s var(--dss-ease)}.dss-scene .dss-field:hover{border-color:var(--dss-accent)}.dss-scene .dss-field[aria-pressed=true]{background:var(--dss-soft);border-color:var(--dss-accent);color:var(--dss-accent);cursor:grabbing}.dss-zones{display:grid;gap:8px}.dss-zone{display:grid;gap:6px;padding:8px 10px;border:1px dashed var(--dss-line);border-radius:10px;min-height:58px;transition:border-color .18s var(--dss-ease),background .18s var(--dss-ease)}.dss-zone[data-armed]{border-style:solid;border-color:var(--dss-accent);background:color-mix(in srgb,var(--dss-soft) 50%,transparent)}.dss-zone[data-miss]{border-color:var(--dss-rust);background:var(--dss-warm)}.dss-scene .dss-zone-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0;border:0;background:transparent;text-align:left;font:500 13px var(--dss-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--dss-muted);min-height:24px}.dss-zone-key{font:600 12px var(--dss-mono);color:var(--dss-accent)}.dss-zone-body{display:flex;flex-wrap:wrap;gap:6px;min-height:0}.dss-zone-empty{font-size:14px;color:var(--dss-muted)}.dss-scene .dss-zone-field{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:4px 10px;border:1px solid var(--dss-accent);border-radius:8px;background:var(--dss-soft);color:var(--dss-accent);font-size:15px}.dss-scene .dss-zone-field span[aria-hidden]{font-size:12px;opacity:.7}.dss-scene .dss-agg{display:inline-flex;align-items:center;gap:4px;margin-left:auto}.dss-scene .dss-agg select{min-height:34px;padding:4px 8px;border:1px solid var(--dss-line);border-radius:8px;background:var(--dss-paper);color:var(--dss-ink);font:600 14px var(--dss-mono)}.dss-scene .dss-agg select:focus-visible{outline:3px solid var(--dss-accent);outline-offset:2px}.dss-pivot-out{display:grid;gap:8px;min-width:0}.dss-pivot-scroll{overflow-x:auto;border:1px solid var(--dss-line);border-radius:12px;background:var(--dss-paper);box-shadow:0 4px 0 var(--dss-line)}.dss-pivot-table{border-collapse:collapse;width:100%;min-width:max-content;font-size:16px}.dss-pivot-table td,.dss-pivot-table th{padding:9px 14px;border-bottom:1px solid var(--dss-gridline);border-right:1px solid var(--dss-gridline);white-space:nowrap;text-align:left}.dss-pivot-table th{background:var(--dss-head);font:600 13px var(--dss-mono);letter-spacing:.04em;color:var(--dss-muted)}.dss-pivot-table th[scope=row]{font:500 16px var(--dss-sans);color:var(--dss-ink)}.dss-pivot-table td{font-family:var(--dss-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;text-align:right}.dss-pivot-table .dss-pivot-total td,.dss-pivot-table .dss-pivot-total th,.dss-pivot-table td.dss-pivot-total{font-weight:600;border-top:2px solid var(--dss-line);color:var(--dss-ink)}.dss-pivot-empty{padding:28px 16px;border:1px dashed var(--dss-line);border-radius:12px;text-align:center;color:var(--dss-muted);font-size:16px}.dss-scene[data-state=done] .dss-pivot-scroll{border-color:var(--dss-green);box-shadow:0 4px 0 var(--dss-green)}.dss-scene[data-state=done] .dss-zone{border-color:var(--dss-green);border-style:solid}.dss-chart{display:grid;gap:14px}.dss-chart .dss-sheet{--dss-col-min:84px}.dss-writeit{margin-top:4px}.dss-writeit .dss-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,3fr);gap:24px 32px;align-items:start}@media (min-width:900px){.dss-writeit{--dss-wide:min(1080px,100vw - 64px);width:var(--dss-wide);margin-inline:calc((100% - var(--dss-wide)) / 2)}}.dss-writeit .dss-sheet{--dss-col-min:78px}.dss-writeit .dss-grid{font-size:16px;grid-template-columns:44px repeat(var(--dss-cols,5),minmax(var(--dss-col-min,78px),auto))}.dss-task{display:grid;gap:14px;min-width:0}.dss-kicker{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.dss-kicker__tag{padding:4px 10px;border-radius:6px;background:var(--dss-blue);color:var(--dss-accent);font:600 12px var(--dss-mono);letter-spacing:.08em}.dss-kicker__note{font-size:14px;color:var(--dss-muted)}.dss-prompt{font-size:22px;line-height:1.4;font-weight:500;color:var(--dss-ink);text-wrap:pretty}.dss-goal{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px;font-size:16px;line-height:1.5;color:var(--dss-muted)}.dss-goal>span:first-child{font:500 12px var(--dss-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--dss-muted)}.dss-goal code{font:15px var(--dss-mono);color:var(--dss-accent)}.dss-hint{padding:8px 12px;border-radius:10px;background:var(--dss-blue);color:var(--dss-ink)}.dss-teacher{display:flex;align-items:center;gap:14px;min-width:0;margin-top:6px}.dss-teacher .teacher{flex:none;display:flex;flex-direction:column;align-items:center;gap:0}.dss-teacher .teacher .tensor-host,.sh-player .dss-teacher .teacher .tensor-host{display:block;width:120px;height:120px}.dss-teacher .tensor-host svg,.dss-teacher .tensor-host>span{display:block;width:100%;height:100%;overflow:visible}.dss-teacher .tensor-shadow{display:block;width:58px;height:9px;border-radius:50%;background:#66577716;filter:blur(2px);margin:-9px 0 0}.dss-writeit .dss-note,.sh-player .dss-writeit .dss-note{flex:1 1 auto;min-width:0;min-height:0;margin:0;max-width:none;padding:0;display:block;font-size:19px;line-height:1.5;color:var(--dss-ink)}.dss-writeit .dss-note[data-scene-note=wrong] p,.sh-player .dss-writeit .dss-note[data-scene-note=wrong] p{color:var(--dss-rust)}.dss-writeit .dss-note[data-scene-note=done] p,.sh-player .dss-writeit .dss-note[data-scene-note=done] p{color:var(--dss-green)}.dss-work{display:grid;gap:12px;min-width:0;padding:14px;border:1px solid var(--dss-line);border-radius:16px;background:color-mix(in srgb,var(--dss-head) 60%,var(--dss-paper))}.dss-work-bar{display:flex;align-items:center;justify-content:space-between;gap:10px}.dss-file{font:500 14px 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