:root{--bg:#eef0f3;--panel:#fff;--panel-2:#f7f8fa;--border:#d8dce2;--text:#1d2733;--muted:#6b7785;--accent:#1f6fe0;--accent-soft:#e6f0fd;--sel:#f07800;--sel-soft:#fff1e0;--danger:#d92d20;--warn:#c77700;--ok:#16a34a;--shadow:0 6px 24px #141e2d29, 0 1px 3px #141e2d1a;color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;font-size:13px}*{box-sizing:border-box}html,body,#root{background:var(--bg);height:100%;margin:0;overflow:hidden}button{font:inherit;color:inherit;cursor:pointer}input{font:inherit;color:inherit}.app{grid-template-rows:58px 1fr 48px;height:100%;display:grid}.toolbar{background:var(--panel);border-bottom:1px solid var(--border);-webkit-user-select:none;user-select:none;align-items:center;gap:2px;padding:0 8px;display:flex}.brand{letter-spacing:.2px;align-items:center;gap:6px;margin-right:12px;font-size:15px;font-weight:700;display:flex}.logo{color:var(--accent);font-size:18px}.tb{background:0 0;border:1px solid #0000;border-radius:6px;flex-direction:column;justify-content:center;align-items:center;gap:2px;min-width:50px;height:50px;padding:0 5px;display:inline-flex}.lbl{white-space:nowrap;color:var(--muted);font-size:10.5px;line-height:1}.tb:hover:not(:disabled) .lbl,.tool:hover .lbl{color:inherit}.tb:hover:not(:disabled){background:var(--accent-soft);color:var(--accent);border-color:#c9dbf7}.tb:disabled{opacity:.35;cursor:default}.sep{background:var(--border);width:1px;height:24px;margin:0 6px}.grow{flex:1}.urllen{cursor:pointer;white-space:nowrap;font-variant-numeric:tabular-nums;border:0;border-radius:10px;margin-right:6px;padding:3px 8px;font-size:12px}.urllen.len-ok{color:#14743a;background:#e7f6ec}.urllen.len-warn{color:var(--warn);background:#fff4e0}.urllen.len-bad{color:var(--danger);background:#fde8e6}.menu-wrap{position:relative}.menu{background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow);z-index:50;border-radius:8px;flex-direction:column;min-width:150px;padding:4px;display:flex;position:absolute;top:54px;right:0}.menu button{text-align:left;background:0 0;border:0;border-radius:5px;padding:7px 10px}.menu button:hover{background:var(--accent-soft)}.menu button.danger{color:var(--danger)}.menu.ctx{position:fixed;right:auto}.main{grid-template-columns:250px 1fr;min-height:0;display:grid}.tree{background:var(--panel);border-right:1px solid var(--border);-webkit-user-select:none;user-select:none;flex-direction:column;min-height:0;display:flex}.tree-head{text-transform:uppercase;letter-spacing:.6px;color:var(--muted);padding:10px 12px 6px;font-size:11px;font-weight:600}.rows{padding:0 6px 8px;overflow-y:auto}.rows:first-of-type{flex:1}.rows.parts{border-top:1px solid var(--border);flex:none;max-height:30%}.row{cursor:default;white-space:nowrap;border-radius:5px;align-items:center;gap:8px;padding:5px 8px;display:flex}.row:hover{background:var(--panel-2)}.row.dim{color:var(--muted)}.row.sel{background:var(--sel-soft);color:var(--sel)}.row.editing{background:var(--accent-soft);color:var(--accent)}.row.rolled{opacity:.4}.row.sup .name{color:var(--muted);text-decoration:line-through}.row.err{color:var(--danger)}.row.warn .badge{color:var(--warn)}.row .name{text-overflow:ellipsis;flex:1;overflow:hidden}.row .rv{white-space:nowrap;color:var(--muted);font-variant-numeric:tabular-nums;margin-left:auto;font-size:11px}.row .badge{font-weight:700}.row input.rename{border:1px solid var(--accent);border-radius:4px;flex:1;min-width:0;padding:1px 4px}.rollback{cursor:ns-resize;align-items:center;height:10px;margin:1px 0;display:flex}.rollback span{background:var(--accent);border-radius:2px;flex:1;height:3px;box-shadow:0 0 0 1px #fff}.rollback:hover span,.rollback.dragging span{height:5px}.stage{min-width:0;min-height:0;position:relative}.viewport{background:linear-gradient(#fbfcfd 0%,#e2e7ee 100%);position:absolute;inset:0;overflow:hidden}.viewport canvas{outline:none;display:block}.empty-hint{border:1px solid var(--border);color:var(--muted);text-align:center;pointer-events:none;box-shadow:var(--shadow);background:#ffffffe6;border-radius:10px;padding:12px 16px;line-height:1.6;position:absolute;bottom:70px;left:50%;transform:translate(-50%)}.empty-hint b{color:var(--text)}.view-buttons{gap:4px;display:flex;position:absolute;bottom:12px;right:12px}.view-buttons button{border:1px solid var(--border);background:#ffffffe6;border-radius:6px;padding:4px 9px;font-size:12px}.view-buttons button.on{color:var(--accent);background:var(--accent-soft);border-color:#c9dbf7}.view-buttons button:hover{color:var(--accent);border-color:#c9dbf7}.dialog{background:var(--panel);border:1px solid var(--border);width:300px;box-shadow:var(--shadow);z-index:20;-webkit-user-select:none;user-select:none;border-radius:10px;position:absolute;top:12px;left:12px}.dlg-head{border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:8px 8px 8px 12px;display:flex}.dlg-head .title{flex:1;font-weight:600}.ok,.cancel{border:1px solid var(--border);background:var(--panel);border-radius:6px;width:30px;height:28px;font-size:15px;line-height:1}.ok{color:#fff;background:var(--ok);border-color:var(--ok)}.ok:hover{filter:brightness(1.08)}.cancel:hover{color:var(--danger);border-color:var(--danger)}.dlg-body{flex-direction:column;gap:10px;padding:10px 12px 12px;display:flex}.dlg-status{border-top:1px solid var(--border);color:var(--danger);background:#fff7f6;border-radius:0 0 10px 10px;padding:8px 12px;font-size:12px}.dlg-status.warn{color:#8a5300;background:#fff8e8}.hint{color:var(--muted);font-size:12px}.field{flex-direction:column;gap:4px;display:flex}.field label{color:var(--muted);text-transform:uppercase;letter-spacing:.4px;font-size:11px;font-weight:600}.sel-box{border:1px solid var(--border);cursor:pointer;background:var(--panel-2);border-radius:6px;flex-wrap:wrap;gap:4px;min-height:32px;padding:4px;display:flex}.sel-box.active{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft);background:#fff}.sel-box .ph{color:var(--muted);padding:3px 4px;font-size:12px}.chip{background:var(--sel-soft);color:#9a4b00;border-radius:4px;align-items:center;gap:4px;padding:2px 4px 2px 8px;font-size:12px;display:inline-flex}.chip button{color:inherit;opacity:.7;background:0 0;border:0;padding:0 3px}.chip button:hover{opacity:1}.val{border:1px solid var(--border);background:#fff;border-radius:6px;align-items:center;padding-right:8px;display:flex}.val:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.val.bad{border-color:var(--danger)}.val input{font-variant-numeric:tabular-nums;background:0 0;border:0;outline:none;flex:1;min-width:0;padding:6px 8px}.val .unit{color:var(--muted);padding-left:8px;font-size:12px}.seg{border:1px solid var(--border);border-radius:6px;display:flex;overflow:hidden}.seg button{background:var(--panel-2);border:0;border-right:1px solid var(--border);flex:1;padding:6px 4px;font-size:12px}.seg button:last-child{border-right:0}.seg button.on{background:var(--accent);color:#fff}.check{align-items:center;gap:6px;font-size:12px;display:flex}.axes{gap:4px;margin-top:4px;display:flex}.axes button{border:1px solid var(--border);background:var(--panel-2);border-radius:4px;padding:2px 10px;font-size:12px}.axes button.on{background:var(--accent);border-color:var(--accent);color:#fff}.sketch-panel{background:var(--panel);border:1px solid var(--border);width:210px;max-height:calc(100% - 24px);box-shadow:var(--shadow);z-index:15;-webkit-user-select:none;user-select:none;border-radius:10px;flex-direction:column;display:flex;position:absolute;top:12px;left:12px}.sp-head{align-items:center;gap:8px;padding:8px 8px 6px 12px;display:flex}.sp-head 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kbd{color:#dbe7fb}.sketch-hint{color:#fff;pointer-events:none;z-index:14;white-space:nowrap;background:#1f2933d1;border-radius:12px;padding:4px 10px;font-size:12px;position:absolute;bottom:16px;left:50%;transform:translate(-50%)}.sk-overlay{pointer-events:none;position:absolute;inset:0;overflow:hidden}.dim-label,.glyph,.dim-input{pointer-events:auto;white-space:nowrap;position:absolute;top:0;left:0}.dim-label{color:#2b3540;font-variant-numeric:tabular-nums;cursor:move;background:#ffffffe0;border-radius:3px;padding:0 4px;font-size:12px;line-height:17px;box-shadow:0 0 0 1px #5c677340}.dim-label.preview{color:var(--sel);box-shadow:0 0 0 1px var(--sel);pointer-events:none}.dim-label.dragging{box-shadow:0 0 0 1px var(--accent)}.dim-label:hover{color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.dim-label.sel{color:var(--sel);box-shadow:0 0 0 1px var(--sel)}.readout{pointer-events:none;white-space:nowrap;color:#1f4f9c;font-variant-numeric:tabular-nums;background:#ffffffd9;border-radius:3px;padding:1px 5px;font-size:11.5px;position:absolute;top:0;left:0}.readout .snap{color:var(--sel);margin-right:6px;font-weight:600}.sp-check{color:var(--muted);align-items:center;gap:6px;padding:8px 6px 2px;font-size:12px;display:flex}.dim-label.bad,.glyph.bad{border-color:var(--danger);color:var(--danger)}.dim-input{border:2px solid var(--accent);width:110px;box-shadow:var(--shadow);border-radius:5px;outline:none;padding:3px 6px;font-size:12px}.glyph{opacity:.85;text-align:center;color:#445261;cursor:pointer;background:#fff;border:1px solid #b9c1cb;border-radius:3px;min-width:13px;height:13px;padding:0 2px;font-size:9.5px;line-height:13px}.glyph:hover,.glyph.sel{border-color:var(--sel);color:var(--sel)}.timeline{background:var(--panel);border-top:1px solid var(--border);-webkit-user-select:none;user-select:none;align-items:center;gap:10px;min-width:0;padding:0 10px;display:flex}.tl-controls{gap:2px;display:flex}.tl-controls button{border:1px solid var(--border);background:var(--panel-2);border-radius:5px;width:28px;height:26px;font-size:11px}.tl-controls button:hover{color:var(--accent)}.tl-track{flex:1;align-items:center;gap:2px;min-width:0;height:100%;padding:0 4px;display:flex;overflow-x:auto}.tl-item{border:1px solid var(--border);background:var(--panel-2);border-radius:6px;flex:none;justify-content:center;align-items:center;width:32px;height:32px;display:inline-flex}.tl-item:hover{border-color:var(--accent);color:var(--accent)}.tl-item.rolled{opacity:.35}.tl-item.sup{border-style:dashed}.tl-item.err{color:var(--danger);border-color:var(--danger)}.tl-item.editing{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.tl-marker{background:var(--accent);border-radius:2px;flex:none;width:4px;height:34px;margin:0 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24px}.stats{--cat-coord:#2a78d6;--cat-geometry:#eb6834;--cat-constraint:#1baf7a;--cat-number:#eda100;--cat-ref:#e87ba4;--cat-structure:#008300;--cat-name:#6250d6;--cat-placement:#e34948;--st-surface:#fff;--st-track:#eef0f3;background:var(--st-surface);border-left:1px solid var(--border);width:min(560px,100vw);box-shadow:var(--shadow);z-index:60;flex-direction:column;display:flex;position:fixed;top:58px;bottom:48px;right:0}.st-head{border-bottom:1px solid var(--border);justify-content:space-between;align-items:flex-start;padding:14px 16px 10px;display:flex}.st-head h2{margin:0;font-size:16px}.st-head p,.st-muted{color:var(--muted);margin:2px 0 0;font-size:12px;line-height:1.5}.st-body{padding:12px 16px 24px;overflow-y:auto}.st-body section{margin-top:22px}.st-body h3{text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin:0 0 8px;font-size:11px}.st-tiles{grid-template-columns:repeat(2,1fr);gap:8px;display:grid}.st-tile{background:var(--panel-2);border-radius:8px;padding:10px 12px}.st-tile .lbl{color:var(--muted);font-size:11px;font-weight:600}.st-tile .v{font-variant-numeric:tabular-nums;letter-spacing:-.4px;margin-top:2px;font-size:24px;font-weight:650}.st-tile .u{color:var(--muted);letter-spacing:0;font-size:12px;font-weight:500}.st-tile .sub{color:var(--muted);margin-top:2px;font-size:11.5px}.st-stack{gap:2px;height:18px;margin-bottom:8px;display:flex}.st-stack .sseg{min-width:2px}.st-stack .sseg:first-child{border-radius:4px 0 0 4px}.st-stack .sseg:last-child{border-radius:0 4px 4px 0}.cat-coord{--c:var(--cat-coord)}.cat-geometry{--c:var(--cat-geometry)}.cat-constraint{--c:var(--cat-constraint)}.cat-number{--c:var(--cat-number)}.cat-ref{--c:var(--cat-ref)}.cat-structure{--c:var(--cat-structure)}.cat-name{--c:var(--cat-name)}.cat-placement{--c:var(--cat-placement)}.st-stack .sseg,.sw{background:var(--c)}.sw{vertical-align:-1px;border-radius:2px;width:10px;height:10px;margin-right:8px;display:inline-block}.st-table{border-collapse:collapse;width:100%;font-size:12.5px}.st-table th{text-align:left;color:var(--muted);border-bottom:1px solid var(--border);padding:4px 6px;font-size:11px;font-weight:600}.st-table td{border-bottom:1px solid #f0f2f5;padding:5px 6px}.st-table .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.st-table tr.zero td{color:var(--muted)}.st-frag{word-break:break-all;background:var(--panel-2);border-radius:8px;padding:8px 10px;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:13px;line-height:24px}.st-frag .ch{border-bottom:3px solid var(--c);color:var(--text);cursor:default;padding:0 1px;display:inline-block}.st-frag .ch.hdr{font-weight:700}.st-frag .ch.dim{opacity:.18}.st-frag .ch:hover{box-shadow:0 0 0 1px var(--border);background:#fff}.st-charinfo{color:var(--muted);min-height:16px;margin-top:6px;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:11.5px}.st-bars{flex-direction:column;gap:2px;display:flex}.st-bar-row{border-radius:5px;grid-template-columns:170px 1fr;align-items:center;gap:10px;padding:2px 4px;font-size:12.5px;display:grid}.st-bar-row.on{background:var(--accent-soft)}.st-bar-row.muted .name{color:var(--muted)}.st-bar-row.ours .name{font-weight:600}.st-bar-row .name{white-space:nowrap;text-overflow:ellipsis;align-items:center;gap:6px;display:flex;overflow:hidden}.st-bar-row .track{align-items:center;gap:8px;min-width:0;display:flex}.st-bar-row .bar{background:var(--cat-coord);border-radius:0 4px 4px 0;min-width:2px;height:14px}.st-bar-row .bar.neutral{background:#c3cad3}.st-bar-row .bv{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:11.5px}.st-trivia{margin:0;padding-left:18px;font-size:12.5px;line-height:1.7}.st-trivia b{font-weight:600}.modal-backdrop{z-index:120;background:#141e2d59;place-items:center;display:grid;position:fixed;inset:0}.modal{background:var(--panel);box-shadow:var(--shadow);border-radius:12px;width:min(380px,100vw - 32px)}.qr-img{padding:16px 28px 4px}.qr-img svg{width:100%;height:auto;image-rendering:pixelated;display:block}.qr-text{margin:8px 20px 0;font-size:13px;line-height:1.5}.qr-meta{color:var(--muted);font-variant-numeric:tabular-nums;margin:6px 20px 0;font-size:11.5px}.qr-actions{gap:6px;padding:14px 20px 18px;display:flex}.qr-actions button{border:1px solid var(--border);background:var(--panel-2);border-radius:6px;flex:1;padding:7px 6px;font-size:12px}.qr-actions button:hover{color:var(--accent);border-color:#c9dbf7}.mv{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;background:linear-gradient(#fbfcfd 0%,#dfe5ec 100%);position:fixed;inset:0;overflow:hidden}.mv-canvas{position:absolute;inset:0}.mv-canvas canvas{touch-action:none;display:block}.mv-top{padding:calc(env(safe-area-inset-top) + 10px) calc(env(safe-area-inset-right) + 12px) 10px calc(env(safe-area-inset-left) + 14px);pointer-events:none;align-items:center;gap:8px;display:flex;position:absolute;top:0;left:0;right:0}.mv-top>*{pointer-events:auto}.mv-brand{font-size:16px;font-weight:700}.mv-btn{border:1px solid var(--border);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffffeb;border-radius:999px;padding:8px 14px;font-size:15px;font-weight:500}.mv-btn.ar{background:var(--accent);border-color:var(--accent);color:#fff}.mv-btn:disabled{opacity:.5}.mv-bottom{padding:12px calc(env(safe-area-inset-right) + 14px) calc(env(safe-area-inset-bottom) + 10px) calc(env(safe-area-inset-left) + 14px);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border);background:#ffffffe6;position:absolute;bottom:0;left:0;right:0}.mv-info{font-variant-numeric:tabular-nums;justify-content:space-between;gap:8px;font-size:14px;display:flex}.mv-info b{font-weight:650}.mv-history{align-items:center;gap:12px;margin-top:12px;display:flex}.mv-play{background:var(--accent);color:#fff;border:0;border-radius:50%;flex:none;width:44px;height:44px;font-size:15px}.mv-scrub{flex:1;min-width:0}.mv-step{white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.mv-count{color:var(--muted);font-variant-numeric:tabular-nums;margin-left:4px}.mv-scrub input[type=range]{width:100%;height:32px;accent-color:var(--accent);margin:0}.mv-foot{color:var(--muted);text-align:center;margin-top:8px;font-size:12px}.mv-link{color:var(--accent);background:0 0;border:0;padding:0;font-size:12px}.mv-loading{text-align:center;background:#fbfcfdeb;place-content:center;justify-items:center;gap:10px;padding:24px;font-size:15px;display:grid;position:absolute;inset:0}.mv-loading small{color:var(--muted);font-size:12.5px}.spinner{border:3px solid #d7deea;border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.9s linear infinite spin}.mv-busy{top:calc(env(safe-area-inset-top) + 60px);color:var(--muted);pointer-events:none;background:#ffffffd9;border-radius:999px;padding:3px 10px;font-size:12px;position:absolute;left:50%;transform:translate(-50%)}.mv .toast{bottom:calc(env(safe-area-inset-bottom) + 150px)}