*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#14161a;--panel:#1e2128;--panel2:#262a33;--border:#333845;--text:#e8eaf0;--muted:#8b93a5;--accent:#4f8cff;--accent2:#38c172;--danger:#e15b5b}html,body{height:100%}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}#app{flex-direction:column;height:100vh;display:flex}#toolbar{background:var(--panel);border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:14px;padding:8px 12px;display:flex}.brand{white-space:nowrap;margin-right:4px;font-size:15px;font-weight:700}.tool-group{border-left:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:6px;padding:4px 10px;display:flex}.btn{background:var(--panel2);color:var(--text);border:1px solid var(--border);cursor:pointer;-webkit-user-select:none;user-select:none;white-space:nowrap;border-radius:8px;padding:6px 10px;font-size:13px;transition:background .15s,border-color .15s}.btn:hover{background:#2f3440}.btn.active,.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.recording{background:var(--danger);border-color:var(--danger);color:#fff}.btn.small{padding:2px 8px;font-size:12px}.btn:disabled{opacity:.45;cursor:not-allowed}.slider-label{color:var(--muted);align-items:center;gap:6px;font-size:12px;display:flex}.slider-label input[type=range]{width:90px}.slider-label.small{font-size:11px}.slider-label input[type=number]{background:var(--panel2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:2px 4px}#workspace{flex:1;min-height:0;display:flex}#pane-2d,#pane-3d{flex-direction:column;min-width:200px;display:flex;position:relative;overflow:hidden}#pane-2d{background:#20232a;flex:0 0 44%}#pane-3d{background:#0d0f13;flex:1}#splitter{cursor:col-resize;background:var(--border);flex:none;width:5px}#splitter:hover{background:var(--accent)}.pane-title{border-bottom:1px solid var(--border);z-index:2;background:#00000040;padding:5px 10px;font-size:12px;font-weight:600}.muted{color:var(--muted);font-weight:400}#canvas2d{cursor:crosshair;touch-action:none;flex:1;width:100%;height:100%}#container3d{flex:1;position:relative}#container3d canvas{display:block}.hint{color:var(--muted);pointer-events:none;background:#14161acc;border-radius:6px;padding:5px 8px;font-size:11px;position:absolute;bottom:8px;left:8px;right:8px}#fp-overlay{pointer-events:none;z-index:5;background:#000000b3;border-radius:8px;padding:6px 14px;font-size:12px;position:absolute;top:40px;left:50%;transform:translate(-50%)}#rec-overlay{color:#fff;background:var(--danger);z-index:5;border-radius:6px;padding:4px 10px;font-size:12px;font-weight:700;animation:1s infinite blink;position:absolute;top:40px;right:12px}@keyframes blink{50%{opacity:.4}}.hidden{display:none!important}#gallery-bar{background:var(--panel);border-top:1px solid var(--border);align-items:center;gap:12px;min-height:74px;padding:6px 12px;display:flex}.gallery-title{white-space:nowrap;font-size:12px;font-weight:600}#gallery{flex:1;gap:8px;padding:2px;display:flex;overflow-x:auto}#gallery img{border:1px solid var(--border);cursor:pointer;border-radius:6px;height:56px;transition:transform .12s}#gallery img:hover{border-color:var(--accent);transform:scale(1.06)}#room-chips{z-index:4;flex-wrap:wrap;gap:6px;max-width:70%;display:flex;position:absolute;top:36px;left:10px}.chip{color:var(--text);border:1px solid var(--border);cursor:pointer;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#14161ad1;border-radius:999px;padding:5px 12px;font-size:12px;transition:background .15s,border-color .15s}.chip:hover{border-color:var(--accent);background:#4f8cff40}.chip .m2{color:var(--muted);margin-left:4px;font-size:10px}body.presenting #pane-2d,body.presenting #splitter,body.presenting #draw-tools,body.presenting #grp-plan{display:none}body.presenting #pane-3d{flex:1}body.presenting #btn-present{background:var(--accent2);border-color:var(--accent2)}dialog{background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:12px;max-width:420px;padding:20px}dialog::backdrop{background:#0000008c}dialog h3{margin-bottom:10px}dialog p{color:var(--muted);margin-bottom:12px;font-size:13px}dialog label{flex-direction:column;gap:6px;font-size:13px;display:flex}dialog input[type=number]{background:var(--panel2);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px;font-size:14px}dialog menu{justify-content:flex-end;gap:8px;margin-top:16px;display:flex}