:root{--bg:#14171c;--panel:#1b2027;--panel-2:#20262f;--line:#2b333e;--text:#e8ecf1;--dim:#8b96a5;--accent:#53c6f0;--accent2:#ff8a4a;--canvas-bg:#171b21;--font-ui:"IBM Plex Sans", sans-serif;--font-mono:"IBM Plex Mono", monospace;--font-display:"Chakra Petch", sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{font-family:var(--font-ui);color:var(--text);background:var(--bg);margin:0;font-size:13px;overflow:hidden}.app{flex-direction:column;height:100vh;display:flex}.topbar{background:linear-gradient(180deg, #1d232c, var(--panel));border-bottom:1px solid var(--line);flex-shrink:0;align-items:center;gap:8px;height:52px;padding:0 14px;display:flex}.brand{font-family:var(--font-display);letter-spacing:.06em;-webkit-user-select:none;user-select:none;margin-right:14px;font-size:19px;font-weight:700}.brand span{color:var(--accent)}.tools{background:var(--canvas-bg);border:1px solid var(--line);border-radius:8px;gap:4px;padding:3px;display:flex}.tool-btn{font-family:var(--font-ui);color:var(--dim);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:6px 12px;font-size:12.5px;font-weight:500;transition:all .12s}.tool-btn:hover{color:var(--text)}.tool-btn.active{background:var(--accent);color:#0c222c;font-weight:600}.seg{background:var(--canvas-bg);border:1px solid var(--line);border-radius:8px;gap:2px;padding:3px;display:flex}.seg button{font-family:var(--font-mono);letter-spacing:.04em;color:var(--dim);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:6px 10px;font-size:11px}.seg button.active{background:var(--panel-2);color:var(--accent)}.btn{font-family:var(--font-display);letter-spacing:.03em;color:#0c222c;background:var(--accent2);cursor:pointer;border:none;border-radius:8px;padding:8px 16px;font-size:13px;font-weight:600;transition:transform .12s,filter .12s}.btn:hover:not(:disabled){filter:brightness(1.1);transform:translateY(-1px)}.btn:disabled{opacity:.45;cursor:default}.walk-btn{box-shadow:0 0 18px #ff8a4a40}.mic-btn.listening{color:#ff8a8a;border-color:#a04545;animation:1.4s ease-in-out infinite mic-pulse}@keyframes mic-pulse{0%,to{box-shadow:0 0 #ff646459}50%{box-shadow:0 0 0 6px #ff646400}}.hint.voice{color:#ffb057}.hint.voice.bad{color:#ff8a8a}.btn-ghost{font-family:var(--font-ui);color:var(--dim);border:1px solid var(--line);cursor:pointer;background:0 0;border-radius:7px;padding:6px 11px;font-size:12.5px;transition:all .12s}.btn-ghost:hover:not(:disabled){color:var(--text);border-color:#3d4856}.btn-ghost:disabled{opacity:.35;cursor:default}.btn-ghost.danger:hover{color:#ff7a6b;border-color:#6b3a34}.spacer{flex:1}.body{flex:1;min-height:0;display:flex}.sidebar{background:var(--panel);border-right:1px solid var(--line);flex-shrink:0;width:216px;padding:14px 12px;overflow-y:auto}.sidebar h2{font-family:var(--font-display);letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin:0 0 10px 2px;font-size:12px;font-weight:600}.chips{flex-wrap:wrap;gap:4px;margin-bottom:12px;display:flex}.chip{color:var(--dim);background:var(--canvas-bg);border:1px solid var(--line);cursor:pointer;border-radius:20px;padding:3px 9px;font-size:11px}.chip.active{color:var(--accent);border-color:var(--accent)}.cat-grid{grid-template-columns:1fr 1fr;gap:7px;display:grid}.cat-card{background:var(--panel-2);border:1px solid var(--line);cursor:grab;text-align:left;border-radius:9px;flex-direction:column;align-items:flex-start;gap:5px;padding:9px;transition:all .12s;display:flex}.cat-card:hover{border-color:#404d5c;transform:translateY(-1px)}.cat-card.active{border-color:var(--accent2);box-shadow:0 0 0 1px var(--accent2)}.swatch{opacity:.8;border-radius:5px;width:100%;height:34px}.cat-label{color:var(--text);font-size:11.5px;font-weight:500;line-height:1.2}.cat-dims{font-family:var(--font-mono);color:var(--dim);font-size:10px}.canvases{flex:1;min-width:0;display:flex;position:relative}.canvases>*{flex:1;min-width:0}.canvases.both .pane2d{border-right:1px solid var(--line)}.pane2d{position:relative}.pane2d,.editor2d{height:100%}.editor2d{background:var(--canvas-bg);position:relative;overflow:hidden}.editor2d svg{cursor:crosshair;display:block}.editor2d.tool-select svg{cursor:default}.pane3d{background:#dfe8ef;position:relative}.grid-minor{stroke:#1d2229}.grid-major{stroke:#232a33}.room-fill{fill:#53c6f00e;stroke:none}.room-label{fill:#5f7f92;font-family:var(--font-mono)}.wall-line{cursor:pointer}.corner{fill:#9fb0c2;stroke:var(--canvas-bg);cursor:pointer}.corner.selected{fill:var(--accent2)}.dim-label{fill:var(--accent);font-family:var(--font-mono);opacity:.85;-webkit-user-select:none;user-select:none}.dim-label.bright{opacity:1;font-weight:500}.item-label{fill:#cdd6df;font-family:var(--font-ui);-webkit-user-select:none;user-select:none;pointer-events:none}.item,.opening{cursor:pointer}.props{background:var(--panel);border-left:1px solid var(--line);flex-shrink:0;width:210px;padding:14px}.props header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.props h3{font-family:var(--font-display);letter-spacing:.06em;margin:0;font-size:13px;font-weight:600}.prop-row{justify-content:space-between;align-items:center;gap:8px;margin-bottom:9px;display:flex}.prop-row span{color:var(--dim);font-size:12px}.prop-row input{width:76px;font-family:var(--font-mono);color:var(--text);background:var(--canvas-bg);border:1px solid var(--line);text-align:right;border-radius:6px;padding:5px 7px;font-size:12px}.prop-row input:focus{border-color:var(--accent);outline:none}.walk-overlay{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);cursor:pointer;z-index:5;background:#0a0e128c;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.walk-card{background:var(--panel);border:1px solid var(--line);text-align:center;border-radius:14px;max-width:340px;padding:26px 34px}.walk-card h3{font-family:var(--font-display);letter-spacing:.08em;margin:0 0 8px}.walk-card p{color:var(--dim);margin:0 0 16px;line-height:1.5}.crosshair{z-index:4;pointer-events:none;background:#ffffffd9;border-radius:50%;width:4px;height:4px;margin:-2px 0 0 -2px;position:absolute;top:50%;left:50%;box-shadow:0 0 0 1.5px #00000059}.proj-menu{margin-right:6px;position:relative}.proj-menu summary{cursor:pointer;color:var(--dim);border:1px solid var(--line);white-space:nowrap;text-overflow:ellipsis;border-radius:7px;max-width:180px;padding:6px 11px;font-size:12.5px;list-style:none;overflow:hidden}.proj-menu summary::-webkit-details-marker{display:none}.proj-menu[open] summary,.proj-menu summary:hover{color:var(--text);border-color:#3d4856}.proj-drop{z-index:30;background:var(--panel);border:1px solid var(--line);border-radius:10px;min-width:230px;padding:6px;position:absolute;top:calc(100% + 6px);left:0;box-shadow:0 12px 32px #00000073}.proj-item{width:100%;color:var(--text);cursor:pointer;text-align:left;background:0 0;border:none;border-radius:6px;justify-content:space-between;align-items:baseline;gap:10px;padding:7px 9px;font-size:12.5px;display:flex}.proj-item small{color:var(--dim);font-family:var(--font-mono);font-size:10px}.proj-item:hover{background:var(--panel-2)}.proj-item.active{color:var(--accent)}.proj-actions{border-top:1px solid var(--line);gap:4px;margin-top:6px;padding-top:6px;display:flex}.proj-actions button{background:var(--panel-2);border:1px solid var(--line);color:var(--dim);cursor:pointer;border-radius:6px;flex:1;padding:5px 0;font-size:11px}.proj-actions button:hover:not(:disabled){color:var(--text)}.proj-actions button:disabled{opacity:.4;cursor:default}.guide{stroke:var(--accent2);opacity:.85}.minimap{z-index:4;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#10141ab8;border:1px solid #8ca0b440;border-radius:12px;padding:6px;position:absolute;bottom:14px;right:14px}.toast{z-index:40;background:var(--panel);border:1px solid var(--accent);color:var(--text);border-radius:10px;padding:10px 18px;font-size:13px;animation:.18s ease-out toast-in;position:fixed;bottom:46px;left:50%;transform:translate(-50%);box-shadow:0 10px 30px #00000080}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%)}}.statusbar{background:var(--panel);border-top:1px solid var(--line);flex-shrink:0;align-items:center;gap:10px;height:30px;padding:0 14px;display:flex}.hint{font-family:var(--font-mono);color:var(--accent);opacity:.85;font-size:11px}.dim{color:var(--dim);font-size:11px}