:root{--bg: #f6f5f2;--panel: #fff;--line: #d9d6cf;--ink: #1f1f1f;--muted: #6b6b6b;--accent: #2f6fed;--wall: #2b2b2b;font-family:-apple-system,system-ui,sans-serif;font-size:14px;color:var(--ink)}*{box-sizing:border-box}body{margin:0;background:var(--bg);overflow:hidden}#app{display:grid;grid-template-rows:44px 34px 1fr 24px;height:100vh}#workspace{display:grid;grid-template-columns:72px 1fr 296px;min-height:0}#toolbar,#sidebar,#topbar,#statusbar{background:var(--panel);border-color:var(--line)}#toolbar{border-right:1px solid var(--line);display:flex;flex-direction:column;gap:4px;padding:8px 6px}.tool svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}.tool span{display:block;font-size:10px;line-height:1.1;margin-top:2px}#sidebar{border-left:1px solid var(--line);overflow:auto;padding:12px}#topbar{border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;padding:0 12px;overflow-x:auto}#statusbar{border-top:1px solid var(--line);font-size:12px;color:var(--muted);padding:0 12px;display:flex;align-items:center;gap:16px}#canvas-host{position:relative;overflow:hidden}#canvas{width:100%;height:100%;display:block;touch-action:none;-webkit-user-select:none;user-select:none}.tool{width:60px;padding:6px 2px 5px;border:1px solid transparent;border-radius:6px;background:none;cursor:pointer;color:var(--muted);font:inherit}.tool:hover{background:#f1efea}.tool.active{border-color:var(--accent);background:#eaf0fe;color:var(--accent)}#sidebar-tabs{display:flex;gap:4px;margin-bottom:12px;border-bottom:1px solid var(--line)}#sidebar-tabs button{flex:1;padding:6px 4px;border:none;border-bottom:2px solid transparent;background:none;cursor:pointer;font:inherit;color:var(--muted)}#sidebar-tabs button.active{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}#floors{background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:4px;padding:0 10px;overflow-x:auto}.floor-tab{padding:4px 12px;border:1px solid transparent;border-radius:5px;background:none;cursor:pointer;font:inherit;color:var(--muted);white-space:nowrap}.floor-tab:hover{background:#f1efea}.floor-tab.active{background:#eaf0fe;border-color:var(--accent);color:var(--accent);font-weight:600}.floor-action{margin-left:4px;padding:3px 9px;border:1px solid var(--line);border-radius:5px;background:#fff;cursor:pointer;font:inherit;font-size:12px;color:var(--muted);white-space:nowrap}.floor-action:hover{color:var(--ink)}.floor-underlay{margin-left:auto;display:flex;align-items:center;gap:5px;font-size:12px;color:var(--muted);white-space:nowrap;cursor:pointer}#shortcuts{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:30;width:min(780px,calc(100% - 32px));max-height:calc(100% - 32px);overflow:auto;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 30px #00000029;padding:14px 16px 10px}.shortcuts-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.shortcuts-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:4px 22px}#shortcuts h4{margin:8px 0 4px;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.shortcuts-row{display:flex;align-items:baseline;gap:8px;padding:1px 0;font-size:13px}.shortcuts-row kbd{flex:none;min-width:82px;font:600 11px ui-monospace,SFMono-Regular,Menlo,monospace;background:#f1efea;border:1px solid var(--line);border-radius:4px;padding:2px 5px;text-align:center}.shortcuts-foot{margin:12px 0 2px;font-size:12px;color:var(--muted)}#plans{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:30;width:min(520px,calc(100% - 32px));max-height:calc(100% - 32px);overflow:auto;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 30px #00000029;padding:14px 16px 12px}.plans-list{display:flex;flex-direction:column;gap:4px}.plans-row{display:flex;align-items:center;gap:8px}.plans-row.current .plans-name{font-weight:600}.plans-open{flex:1;display:flex;flex-direction:column;gap:1px;text-align:left;padding:7px 10px;border:1px solid var(--line);border-radius:5px;background:#fff;cursor:pointer;font:inherit;color:var(--ink)}.plans-open:hover:not(:disabled){background:#f1efea}.plans-open:disabled{cursor:default;background:#eaf0fe;border-color:var(--accent);color:var(--accent)}.plans-when{font-size:12px;color:var(--muted)}.plans-open:disabled .plans-when{color:var(--accent)}.plans-foot{display:flex;align-items:center;gap:10px;margin-top:12px;font-size:12px;color:var(--muted)}.plans-foot .floor-action{margin-left:0}