:root{--bg: #faf8f2;--surface: #ffffff;--canvas: #e7eae0;--panel: #ffffff;--panel-2: #f5f3ee;--text: #1a1a1c;--muted: #6b6f76;--faint: #a9adb3;--fg: var(--text);--border: #e3e0d8;--border-soft: #eceae3;--accent: #1a1a1c;--accent-soft: rgba(26, 26, 28, .08);--gold: #b08a3e;--gold-soft: rgba(176, 138, 62, .12);--peach: #f2c7b6;--blue: #bfd8f0;--yellow: #f0e2a8;--green: #2e7d5b;--green-soft: rgba(46, 125, 91, .1);--amber: #a8731f;--amber-soft: rgba(168, 115, 31, .1);--red: #c2453f;--red-soft: rgba(194, 69, 63, .1);--radius: 10px;--radius-sm: 6px;--shadow-card: 0 1px 3px rgba(0, 0, 0, .06), 0 0 0 1px var(--border);--mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;--sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:14px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{height:100%;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 16px;height:52px;border-bottom:1px solid var(--border);background:var(--surface);flex:none;box-shadow:0 1px 0 var(--border)}.brand{display:flex;align-items:center;gap:10px;min-width:0}.brand-mark{width:18px;height:18px;border-radius:5px;background:linear-gradient(135deg,var(--gold),var(--green));box-shadow:0 0 8px var(--gold-soft);flex:none}.brand-name{font-weight:650;font-size:14.5px;letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.phase-chip{font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:3px 10px;white-space:nowrap;background:var(--panel-2);font-weight:500}.topbar-meta{display:flex;align-items:center;gap:8px;flex:none}.topbar-actions{display:flex;gap:4px;margin-right:4px}.icon-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--muted);font-size:14px;cursor:pointer;transition:all .15s ease}.icon-btn:hover:not(:disabled){background:var(--panel-2);color:var(--text);border-color:var(--muted);box-shadow:0 2px 6px #00000014;transform:translateY(-1px)}.icon-btn:active:not(:disabled){transform:translateY(0);box-shadow:none}.icon-btn:disabled{opacity:.35;cursor:not-allowed}.save-btn.dirty{color:var(--green);border-color:#2e7d5b59;background:var(--green-soft)}.chip-dirty{color:var(--amber);border-color:var(--amber-soft);background:var(--amber-soft)}.brand-back{background:none;border:none;padding:0;cursor:pointer;display:flex;align-items:center}.chip{font-size:11px;font-family:var(--mono);color:var(--muted);border:1px solid var(--border);border-radius:var(--radius-sm);padding:3px 8px;background:var(--panel-2)}.chip-accent{color:var(--green);border-color:#2e7d5b4d;background:var(--green-soft)}.workspace{flex:1;display:grid;grid-template-columns:minmax(260px,300px) 8px minmax(0,1.7fr) 8px minmax(0,1fr);column-gap:0;row-gap:0;padding:10px;min-height:0;background:var(--bg);position:relative}.panel{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-card)}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;border-bottom:1px solid var(--border-soft);flex:none}.panel-head h2{margin:0;font-size:11px;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}.panel-tag{font-size:10.5px;color:var(--faint);font-family:var(--mono)}.json-panel{display:flex;flex-direction:column;flex:1;min-height:0}.json-editor{flex:1;min-height:0;resize:none;border:none;outline:none;padding:12px 14px;background:var(--panel-2);color:var(--text);font-family:var(--mono);font-size:12px;line-height:1.55;-moz-tab-size:2;tab-size:2}.json-editor:focus-visible{box-shadow:inset 0 0 0 1.5px var(--gold)}.json-status{flex:none;max-height:180px;overflow-y:auto;padding:8px 12px;font-size:12px;border-top:1px solid var(--border-soft);color:var(--muted)}.json-status.tone-ok{color:var(--green);background:var(--green-soft)}.json-status.tone-error{color:var(--red);background:var(--red-soft)}.issue-list{margin:6px 0 0;padding-left:18px;color:var(--text)}.issue-list li{margin-bottom:3px;font-size:11.5px}.issue-list code{font-family:var(--mono);font-size:10.5px;color:var(--red);background:var(--red-soft);border-radius:4px;padding:1px 5px;margin-right:6px}.json-actions{display:flex;align-items:center;gap:8px;padding:10px 12px;border-top:1px solid var(--border-soft);flex:none}.dirty-dot{width:8px;height:8px;border-radius:50%;background:var(--amber);margin-left:auto;box-shadow:0 0 8px #e3a85799}.project-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a1a1c73;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:grid;place-items:center;z-index:500}.project-modal{width:460px;max-width:calc(100vw - 32px);background:var(--surface);border:1px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:0 8px 32px #0000001f,0 0 0 1px var(--border)}.project-modal-header{padding:18px 20px 14px;border-bottom:1px solid var(--border)}.project-modal-body{padding:16px 20px 20px;display:flex;flex-direction:column;gap:12px}.project-modal-loading,.project-modal-error{align-items:center;text-align:center;color:var(--muted);gap:14px;padding:28px 20px}.project-modal-section-head{font-size:11px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;justify-content:space-between}.project-modal-empty{color:var(--faint);font-size:13px;text-align:center;padding:20px 0}.project-modal-offline{text-align:center;padding-top:4px}.project-modal-error-inline{font-size:12px;color:#e07070;margin:0}.project-modal-actions{display:flex;gap:8px}.project-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px;max-height:300px;overflow-y:auto}.project-item{width:100%;display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel-2);cursor:pointer;text-align:left;transition:all .15s ease}.project-item:hover:not(:disabled){background:var(--surface);border-color:var(--text);box-shadow:0 2px 8px #0000000f;transform:translate(2px)}.project-item:disabled{opacity:.6;cursor:not-allowed}.project-item-name{flex:1;font-size:13px;font-weight:500;color:var(--fg);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.project-item-date{font-size:11px;font-family:var(--mono);color:var(--faint);flex:none}.project-name-input{padding:9px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel-2);color:var(--text);font-size:14px;outline:none;transition:border-color .12s;width:100%}.project-name-input:focus{border-color:var(--text);box-shadow:0 0 0 3px var(--accent-soft)}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;padding:8px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);font-size:13px;font-weight:500;font-family:var(--sans);cursor:pointer;transition:all .15s ease;outline:none;display:inline-flex;align-items:center;gap:6px}.btn:hover:not(:disabled){background:var(--panel-2);border-color:var(--muted);box-shadow:0 2px 6px #0000000f;transform:translateY(-1px)}.btn:active:not(:disabled){transform:translateY(0);box-shadow:none}.btn:focus-visible{outline:2px solid var(--gold);outline-offset:2px}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--accent);color:var(--surface);border-color:var(--accent);font-weight:600}.btn-primary:hover:not(:disabled){background:#2d2d30;border-color:#2d2d30;box-shadow:0 4px 12px #1a1a1c33}.btn-primary:active:not(:disabled){transform:scale(.98);box-shadow:none}.btn-sm{padding:4px 10px;font-size:12px;border-radius:var(--radius-sm)}.btn-link{background:none;border:none;color:var(--muted);font-size:12px;cursor:pointer;text-decoration:underline;font-family:var(--sans);padding:0}.btn-link:hover{color:var(--text)}.btn kbd{font-family:var(--mono);font-size:10px;opacity:.7;margin-left:4px}.tool-btn:focus-visible,.zoom-btn:focus-visible,.prop-input:focus-visible,.prop-select:focus-visible{outline:2px solid var(--gold);outline-offset:2px}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--green);border-radius:50%;animation:spin .7s linear infinite;flex:none}.spinner-sm{width:14px;height:14px;border-width:1.5px}@keyframes spin{to{transform:rotate(360deg)}}.plan-canvas-wrap{flex:1;display:flex;flex-direction:row;min-height:0;overflow:hidden}.canvas-toolbar{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 4px;width:48px;background:var(--surface);border-right:1px solid var(--border);flex:none;z-index:1}.toolbar-divider{height:1px;background:var(--border);margin:2px 0}.tool-preset{width:100%;max-width:44px;margin-top:2px;padding:4px 1px;font-size:10px;text-overflow:ellipsis;background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm)}.tool-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;width:36px;height:36px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer;transition:all .15s ease;padding:0}.tool-btn:hover{background:var(--panel-2);color:var(--text);border-color:var(--border);box-shadow:0 1px 4px #0000000f}.tool-btn:active{transform:scale(.95)}.tool-btn.active{background:var(--accent);color:var(--surface);border-color:var(--accent);font-weight:600;box-shadow:0 2px 8px #1a1a1c33}.tool-icon{font-size:13px;line-height:1}.tool-key{font-size:9px;font-family:var(--mono);line-height:1;opacity:.7}.plan-surface{position:relative;flex:1;min-height:0;background-color:var(--canvas);background-image:radial-gradient(circle,#cdd1c6 1px,transparent 1px);background-size:22px 22px;background-position:11px 11px}.plan-surface canvas{position:absolute;top:0;right:0;bottom:0;left:0}.viewport-surface{position:relative;flex:1;min-height:0;background:var(--canvas)}.viewport-surface canvas{display:block}.empty-hint{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;pointer-events:none}.empty-hint-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-card);padding:18px 24px;color:var(--muted);font-size:13px;text-align:center;line-height:1.6}.empty-hint-card kbd{display:inline-block;background:var(--panel-2);border:1px solid var(--border);border-radius:4px;padding:1px 5px;font-family:var(--mono);font-size:11px;color:var(--text);font-style:normal}.zoom-controls{position:absolute;right:12px;bottom:12px;display:flex;gap:1px;border:1px solid var(--border);border-radius:999px;background:var(--surface);overflow:hidden;box-shadow:0 2px 8px #0000001a;z-index:2}.zoom-btn{border:none;background:transparent;color:var(--muted);font-size:14px;font-family:var(--mono);width:30px;height:28px;cursor:pointer;transition:background .12s,color .12s;display:flex;align-items:center;justify-content:center}.zoom-btn:hover{background:var(--panel-2);color:var(--text)}.zoom-pct{width:auto;min-width:44px;padding:0 6px;font-size:11px}.zoom-pct.auto{color:var(--green)}.inspector{display:flex;flex-direction:column;overflow-y:auto;flex:1;min-height:0}.inspector-section{border-bottom:1px solid var(--border-soft)}.inspector-section[open]+.inspector-section{border-top:none}.inspector-section-head{display:flex;align-items:center;justify-content:space-between;padding:7px 12px;cursor:pointer;-webkit-user-select:none;user-select:none;background:var(--panel-2);list-style:none;font-size:11px;font-weight:650;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.inspector-section-head::-webkit-details-marker{display:none}.inspector-section-head:before{content:"▸";margin-right:6px;font-size:9px;color:var(--faint);transition:transform .12s}details[open]>.inspector-section-head:before{transform:rotate(90deg)}.inspector-section-title{flex:1}.inspector-back{font-size:11px;font-family:var(--sans);padding:2px 8px;border:1px solid var(--border-soft);border-radius:var(--radius);background:var(--panel);color:var(--muted);cursor:pointer;transition:color .12s,background .12s}.inspector-back:hover{color:var(--text);background:var(--panel-2)}.json-dev-toggle{position:relative}.json-dev-btn{font-size:11px;font-family:var(--mono);padding:2px 6px;border:1px solid var(--border-soft);border-radius:var(--radius);background:var(--panel-2);color:var(--faint);cursor:pointer;list-style:none}.json-dev-btn::-webkit-details-marker{display:none}.json-dev-toggle[open] .json-dev-btn{color:var(--accent);border-color:var(--accent)}.properties-panel{display:flex;flex-direction:column;padding:10px 12px;gap:6px;overflow-y:auto;flex:1;min-height:0}.properties-empty{justify-content:center;align-items:center;color:var(--faint);font-size:12px;text-align:center}.prop-section-head{font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:6px;padding-bottom:4px;border-bottom:1px solid var(--border)}.prop-section-head:first-child{margin-top:0}.prop-field,.prop-row{display:flex;align-items:center;gap:8px}.prop-label{flex:none;width:64px;font-size:11px;color:var(--muted);text-align:right}.prop-value{font-size:12px;font-family:var(--mono);color:var(--fg)}.prop-value-mono{font-size:10px;font-family:var(--mono);color:var(--faint);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.prop-input-wrap{flex:1;display:flex;align-items:center;gap:4px;min-width:0}.prop-input{flex:1;min-width:0;padding:6px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-size:12px;font-family:var(--mono);outline:none;transition:all .15s ease}.prop-input:hover{border-color:var(--muted);background:var(--surface)}.prop-input:focus{border-color:var(--text);background:var(--surface);box-shadow:0 0 0 3px var(--accent-soft)}.prop-input.error{border-color:var(--red);background:var(--red-soft)}.prop-input-text{flex:1;min-width:0}.prop-select{flex:1;padding:4px 6px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-size:12px;outline:none;cursor:pointer;transition:border-color .12s}.prop-select:focus{border-color:var(--text);box-shadow:0 0 0 3px var(--accent-soft)}.prop-unit{font-size:10px;font-family:var(--mono);color:var(--faint);flex:none}.prop-readonly{background:var(--panel-2);border-radius:var(--radius-sm);padding:4px 8px;cursor:default;border:1px solid var(--border-soft)}.structure-panel{flex:1;min-height:0;overflow-y:auto;padding:8px 6px;display:flex;flex-direction:column;gap:2px}.struct-group{display:flex;flex-direction:column;gap:1px;margin-bottom:4px}.struct-row{display:flex;align-items:center;gap:6px;padding:4px 8px;border-radius:6px;cursor:pointer;font-size:12px;color:var(--text);transition:background .1s;min-height:26px}.struct-row:hover{background:var(--bg)}.struct-row:hover .struct-delete,.struct-row:hover .struct-edit{opacity:1}.struct-row.selected{background:var(--accent-soft);outline:1px solid rgba(26,26,28,.15)}.struct-row.inert{cursor:default}.struct-room{font-weight:600}.struct-room-label{font-size:12.5px}.struct-icon{flex:none;width:16px;text-align:center;font-size:11px;color:var(--muted)}.struct-label{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.struct-meta{flex:none;font-size:10px;font-family:var(--mono);color:var(--faint)}.struct-chevron{flex:none;width:16px;height:16px;border:none;background:transparent;color:var(--muted);font-size:9px;cursor:pointer;padding:0;display:flex;align-items:center;justify-content:center}.struct-chevron-placeholder{flex:none;width:16px}.struct-delete,.struct-edit{flex:none;width:18px;height:18px;border:none;border-radius:4px;background:transparent;color:var(--faint);font-size:12px;cursor:pointer;padding:0;opacity:0;transition:opacity .1s,color .1s,background .1s;display:flex;align-items:center;justify-content:center}.struct-delete:hover{color:var(--red);background:var(--red-soft)}.struct-edit:hover{color:var(--green);background:var(--green-soft)}.struct-rename-input{flex:1;min-width:0;padding:2px 6px;border:1px solid var(--text);border-radius:4px;background:var(--surface);color:var(--text);font-size:12px;font-family:var(--sans);outline:none;box-shadow:0 0 0 3px var(--accent-soft)}.struct-empty-hint{padding:2px 8px 4px 40px;font-size:11px;color:var(--faint);font-style:italic}.statusbar{flex:none;display:flex;align-items:center;justify-content:space-between;gap:16px;height:32px;padding:0 14px;border-top:1px solid var(--border);background:var(--surface);color:var(--faint);font-size:11.5px}.statusbar-right{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.violation-badge{display:inline-flex;align-items:center;gap:4px;background:var(--red-soft);color:var(--red);border-radius:999px;padding:1px 8px;font-size:11px;font-weight:600;margin-left:6px}.toast-container{position:fixed;bottom:48px;left:50%;transform:translate(-50%);display:flex;flex-direction:column-reverse;align-items:center;gap:6px;z-index:1000;pointer-events:none}.toast{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--radius);font-size:13px;font-weight:500;border:1px solid var(--border);background:var(--surface);color:var(--text);box-shadow:0 4px 16px #0000001a;white-space:nowrap;pointer-events:auto}.toast.toast-entering{animation:toast-in .18s ease-out}.toast.toast-leaving{animation:toast-out .18s ease-in forwards}.toast:before{content:attr(data-icon);flex:none;font-size:15px;line-height:1}.toast-close{margin-left:6px;background:none;border:none;cursor:pointer;color:var(--faint);font-size:14px;padding:0 2px;line-height:1;display:flex;align-items:center;transition:color .1s}.toast-close:hover{color:var(--text)}.toast-success{border-color:#2e7d5b4d;background:var(--green-soft);color:var(--green)}.toast-success:before{content:"✓"}.toast-error{border-color:#c2453f4d;background:var(--red-soft);color:var(--red)}.toast-error:before{content:"✕"}.toast-info{border-color:var(--border);background:var(--surface);color:var(--muted)}.toast-info:before{content:"ℹ"}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes toast-out{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-6px)}}.room-catalog{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:12px}.room-catalog-head{display:flex;align-items:center;justify-content:space-between}.room-catalog-title{font-size:13px;font-weight:600;color:var(--text)}.room-size-toggle{display:inline-flex;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.room-size-btn{width:28px;padding:4px 0;font-size:11px;font-weight:600;background:var(--surface);color:var(--muted);border:none;border-right:1px solid var(--border);cursor:pointer}.room-size-btn:last-child{border-right:none}.room-size-btn.active{background:var(--accent);color:var(--surface)}.room-catalog-hint{margin:0;font-size:11px;color:var(--muted);line-height:1.4}.room-cat-group{display:flex;flex-direction:column;gap:6px}.room-cat-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--faint)}.room-chip-grid{display:flex;flex-direction:column;gap:4px}.room-chip{display:flex;align-items:center;gap:8px;width:100%;padding:7px 9px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;text-align:left;transition:all .15s ease}.room-chip:hover{border-color:var(--chip-color, var(--border));box-shadow:0 1px 4px #0000000f}.room-chip.active{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold)}.room-chip-swatch{flex:none;width:14px;height:14px;border-radius:4px;background:var(--chip-color, var(--blue))}.room-chip-text{display:flex;flex-direction:column;gap:1px;min-width:0}.room-chip-name{font-size:12px;font-weight:500;color:var(--text)}.room-chip-dims{font-size:10px;color:var(--muted);font-family:var(--mono)}.room-legend{display:flex;align-items:center;gap:10px;padding:6px 12px 8px;border-top:1px solid var(--border-soft);flex-wrap:wrap}.room-legend-item{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--muted);white-space:nowrap}.room-legend-swatch{display:inline-block;width:12px;height:12px;border-radius:3px;border:1px solid rgba(0,0,0,.08);flex:none}.context-toolbar{position:absolute;z-index:4;transform:translate(-50%,-100%);display:flex;align-items:center;gap:2px;padding:3px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-card);pointer-events:auto}.context-btn{padding:4px 10px;font-size:12px;font-weight:500;color:var(--text);background:transparent;border:none;border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap}.context-btn:hover{background:var(--panel-2)}.context-btn-danger{color:var(--red)}.context-btn-danger:hover{background:var(--red-soft)}.context-rename-input{width:120px;padding:4px 8px;font-size:12px;font-family:var(--sans);color:var(--text);background:var(--panel-2);border:1px solid var(--gold);border-radius:var(--radius-sm);outline:none}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}@media(max-width:1024px){.workspace{grid-template-columns:minmax(240px,280px) minmax(0,1fr)!important}.workspace>section,.workspace>.pane-splitter{grid-column:auto!important}.panel-3d{display:none}.panel-3d.panel-3d--visible{display:flex;position:fixed;top:52px;right:0;bottom:32px;left:0;z-index:200;border-radius:0;border:none;box-shadow:0 0 24px 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