:root{--desk: #26292f;--rail: #2e323a;--rail-edge: #3a3f49;--text: #e9ebee;--muted: #9aa3ae;--ui-accent: #8fb0ec;--paper: #fcfcf8;--grid: #c7d8e9;--grid-bold: #a7c0da;--ink: #1e3fa5;--pencil: #8e939b;--margin-red: #e2574c;--chip: #383d47}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--desk);color:var(--text);font:15px/1.5 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.wrap{display:grid;grid-template-columns:330px 1fr;gap:0;min-height:100vh}.rail{background:var(--rail);border-right:1px solid var(--rail-edge);padding:22px 20px 40px;display:flex;flex-direction:column;gap:22px}.brand{display:flex;align-items:baseline;gap:10px}.brand h1{font-size:19px;font-weight:700;letter-spacing:.02em}.brand .lab{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}.rail p.note{color:var(--muted);font-size:13px}.rail p.note b{color:var(--text)}.sec h2{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:10px;font-weight:600}.demos{display:flex;flex-wrap:wrap;gap:8px}.demo{width:44px;height:44px;border-radius:9px;border:1px solid var(--rail-edge);background:var(--chip);font-size:22px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .08s,border-color .12s;color:var(--text)}.demo:hover{transform:translateY(-1px);border-color:var(--ui-accent)}.demo.sel{border-color:var(--ui-accent);box-shadow:0 0 0 1px var(--ui-accent)}.demo.shape{font-size:11px;color:var(--muted);line-height:1.1;text-align:center}.drop{margin-top:10px;border:1.5px dashed #515767;border-radius:10px;padding:14px 12px;text-align:center;color:var(--muted);font-size:13px;cursor:pointer;transition:border-color .12s,color .12s;display:block}.drop:hover,.drop.over{border-color:var(--ui-accent);color:var(--text)}.drop 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.h2{top:66.66%}.crophint{margin-top:8px;font-size:11.5px;color:var(--muted);display:flex;flex-direction:column;gap:2px}.crophint em{font-style:normal;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.param{display:flex;align-items:center;justify-content:space-between;padding:7px 0}.param label{font-size:14px}.param small{display:block;color:var(--muted);font-size:12px}select{background:var(--chip);color:var(--text);border:1px solid var(--rail-edge);border-radius:7px;padding:5px 8px;font-size:13.5px}.gridpick{display:flex;gap:6px;align-items:center}.param.detail{flex-direction:column;align-items:stretch;gap:8px}.rangepick{display:flex;gap:10px;align-items:center}.rangepick input[type=range]{flex:1;accent-color:var(--ui-accent);cursor:pointer}.rangeval{min-width:2.2em;text-align:right;font-size:13px;font-variant-numeric:tabular-nums;color:var(--text)}.gridpick input[type=number]{width:52px;background:var(--chip);color:var(--text);border:1px solid var(--rail-edge);border-radius:7px;padding:5px 8px;font-size:13.5px;font-variant-numeric:tabular-nums}.switch{position:relative;width:40px;height:22px;flex:none}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;top:0;right:0;bottom:0;left:0;background:#4a505c;border-radius:22px;transition:background .15s;cursor:pointer}.slider:before{content:"";position:absolute;width:16px;height:16px;left:3px;top:3px;background:#fff;border-radius:50%;transition:transform .15s}.switch input:checked+.slider{background:var(--ui-accent)}.switch input:checked+.slider:before{transform:translate(18px)}.switch input:focus-visible+.slider{outline:2px solid var(--ui-accent);outline-offset:2px}.main{padding:22px 28px 50px;display:flex;flex-direction:column;gap:20px;min-width:0}.viewbar{display:flex;gap:8px;background:var(--rail);border:1px solid var(--rail-edge);border-radius:12px;padding:8px}.viewbtn{flex:1;background:transparent;color:var(--text);border:1px solid transparent;border-radius:9px;padding:9px 14px;font-size:14px;font-weight:600;cursor:pointer;transition:background .12s,border-color .12s}.viewbtn:hover{border-color:var(--ui-accent)}.viewbtn.sel{background:var(--ui-accent);color:#15233f}.hatch-group{display:flex;flex-direction:column;gap:12px}.hatch-grouphead h2{font-size:15px;font-weight:700;color:var(--text)}.hatch-grouphead p{font-size:12.5px;color:var(--muted);margin-top:2px;max-width:820px}.hatch-legend{display:flex;flex-wrap:wrap;gap:14px;background:var(--rail);border:1px solid var(--rail-edge);border-radius:12px;padding:14px 16px}.swatch{display:flex;flex-direction:column;align-items:center;gap:6px}.swatch canvas{border-radius:6px;box-shadow:0 2px 6px #0000004d}.swatch figcaption{font-size:11px;color:var(--muted);letter-spacing:.02em}.drawnote{font-size:12px;color:var(--muted);line-height:1.4;border-top:1px solid var(--rail-edge);padding-top:9px}.modebar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;background:var(--rail);border:1px solid var(--rail-edge);border-radius:12px;padding:12px 16px}.modebar-label{font-size:13px;font-weight:600}.modebar-label small{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.02em}.modes{display:flex;flex-wrap:wrap;gap:8px}.modebtn{background:var(--chip);color:var(--text);border:1px solid var(--rail-edge);border-radius:8px;padding:7px 13px;font-size:13.5px;cursor:pointer;transition:border-color .12s,background .12s}.modebtn:hover{border-color:var(--ui-accent)}.modebtn.sel{background:var(--ui-accent);border-color:var(--ui-accent);color:#15233f;font-weight:600}.windows{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:20px;align-items:start}.algo{background:var(--rail);border:1px solid var(--rail-edge);border-radius:14px;padding:16px 16px 18px;display:flex;flex-direction:column;gap:12px;min-width:0}.algo-head h3{font-size:16px;font-weight:700;display:flex;align-items:center;gap:9px}.algo-head .tag{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ui-accent);border:1px solid var(--ui-accent);border-radius:5px;padding:1px 6px;font-weight:600}.algo-head p{font-size:12.5px;color:var(--muted);margin-top:2px}.autonote{background:#1f2937;border:1px solid var(--ui-accent);border-radius:9px;padding:9px 11px;font:12px/1.45 ui-monospace,SF Mono,Menlo,Consolas,monospace;color:var(--text);white-space:pre-wrap;word-break:break-word}.algo-sheet{display:flex;justify-content:center}.sheet-fluid{display:block;width:100%;height:auto;max-width:520px;border-radius:4px;box-shadow:0 10px 24px #0006,0 2px 6px #0000004d}.metrics{display:flex;gap:9px}.metric{flex:1;background:var(--chip);border:1px solid var(--rail-edge);border-radius:10px;padding:9px 10px;text-align:center}.metric b{display:flex;align-items:baseline;justify-content:center;gap:5px;font-size:17px;font-variant-numeric:tabular-nums}.metric span{display:block;margin-top:2px;font-size:10.5px;color:var(--muted);letter-spacing:.04em;text-transform:uppercase}.delta{font-size:11.5px;font-weight:600;font-variant-numeric:tabular-nums}.delta.neutral{color:var(--muted)}.delta.zero{color:#5a6170}.kinds{font-size:12px;color:var(--muted);text-align:center;font-variant-numeric:tabular-nums}.hint{color:var(--muted);font-size:13px;max-width:760px}.hint b{color:var(--text)}@media(max-width:900px){.wrap{grid-template-columns:1fr}.rail{border-right:none;border-bottom:1px solid var(--rail-edge)}.main{padding:18px 14px 40px}}