:root{--bg-app: #1a1d21;--bg-bar: #23272e;--bg-panel: #262a31;--bg-panel-2: #2c313a;--bg-canvas: #212830;--bg-input: #16181c;--border: #3a404b;--border-soft: #30353e;--text: #d4dae3;--text-dim: #8b94a3;--accent: #3b9cff;--accent-soft: rgba(59, 156, 255, .16);--warn: #e8b33f;--err: #e05555;--ok: #52c07a;--mono: "Cascadia Mono", Consolas, "Courier New", monospace;font-size:13px}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{font-family:Segoe UI,Microsoft YaHei,system-ui,sans-serif;background:var(--bg-app);color:var(--text);user-select:none}#app{display:flex;flex-direction:column;height:100vh}#topbar{display:flex;align-items:center;gap:4px;background:var(--bg-bar);border-bottom:1px solid var(--border);padding:4px 8px;flex:none;flex-wrap:wrap}#topbar .logo{font-weight:700;font-size:15px;letter-spacing:.5px;color:var(--accent);padding:0 10px 0 4px;display:flex;align-items:center;gap:6px}#topbar .logo small{color:var(--text-dim);font-weight:400;font-size:11px}.tb-group{display:flex;align-items:center;gap:2px;padding:0 6px}.tb-sep{width:1px;height:22px;background:var(--border);margin:0 2px}button{font:inherit;color:var(--text);background:transparent;border:1px solid transparent;border-radius:4px;padding:4px 8px;cursor:pointer;display:inline-flex;align-items:center;gap:5px;white-space:nowrap}button:hover{background:var(--bg-panel-2);border-color:var(--border-soft)}button:active{background:var(--accent-soft)}button.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}button:disabled{opacity:.4;cursor:default}button svg{width:16px;height:16px;flex:none}button.icon-only{padding:5px}#middle{display:flex;flex:1;min-height:0}#toolbar{display:flex;flex-direction:column;align-items:center;gap:2px;background:var(--bg-bar);border-right:1px solid var(--border);padding:6px 4px;overflow-y:auto;flex:none;width:40px}#toolbar button{padding:6px}#toolbar .tb-sep{width:22px;height:1px;margin:3px 0}#canvas-wrap{position:relative;flex:1;min-width:0;background:var(--bg-canvas)}#canvas-main,#canvas-overlay{position:absolute;inset:0;width:100%;height:100%}#canvas-overlay{cursor:none}#canvas-wrap.tool-pan #canvas-overlay{cursor:grab}#canvas-wrap.tool-pan.panning #canvas-overlay{cursor:grabbing}#drop-hint{position:absolute;inset:12px;z-index:5;border:2px dashed var(--accent);border-radius:10px;background:#212830d9;display:none;align-items:center;justify-content:center;text-align:center;font-size:20px;color:var(--accent);pointer-events:none}#drop-hint span{font-size:13px;color:var(--text-dim)}#canvas-wrap.dragover #drop-hint{display:flex}#sidebar{width:258px;flex:none;background:var(--bg-panel);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}#sidebar.hidden{display:none}.panel{display:flex;flex-direction:column;min-height:0;border-bottom:1px solid var(--border)}.panel-title{padding:6px 10px;font-weight:600;font-size:12px;color:var(--text-dim);background:var(--bg-panel-2);display:flex;align-items:center;justify-content:space-between;flex:none;letter-spacing:.5px}.panel-title .pt-actions{display:flex;gap:2px}.panel-title button{padding:2px 4px}.panel-body{overflow-y:auto;padding:4px}#panel-layers{flex:none;max-height:42%}#panel-props{flex:1}.layer-row{display:flex;align-items:center;gap:4px;padding:3px 4px;border-radius:4px;cursor:default}.layer-row:hover{background:var(--bg-panel-2)}.layer-row.current{background:var(--accent-soft)}.layer-row .lr-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.layer-row .lr-name input{width:100%;background:var(--bg-input);border:1px solid var(--accent);color:var(--text);font:inherit;padding:1px 3px;border-radius:3px}.layer-row button{padding:2px;border:none}.layer-row .swatch{width:14px;height:14px;border-radius:3px;border:1px solid rgba(255,255,255,.25);cursor:pointer;flex:none}.layer-row .lr-cur{width:10px;height:10px;border-radius:50%;flex:none;border:1px solid var(--text-dim)}.layer-row.current .lr-cur{background:var(--accent);border-color:var(--accent)}.prop-grid{display:grid;grid-template-columns:88px 1fr;gap:3px 6px;align-items:center;padding:4px}.prop-grid label{color:var(--text-dim);font-size:12px;text-align:right;overflow:hidden;white-space:nowrap}.prop-grid input,.prop-grid select,.prop-grid textarea{width:100%;background:var(--bg-input);border:1px solid var(--border-soft);color:var(--text);font:inherit;padding:3px 5px;border-radius:4px;min-width:0}.prop-grid input:focus,.prop-grid select:focus,.prop-grid textarea:focus{outline:none;border-color:var(--accent)}.prop-head{grid-column:1 / -1;font-weight:600;color:var(--text);padding:6px 2px 2px;border-bottom:1px solid var(--border-soft)}.prop-note{grid-column:1 / -1;color:var(--text-dim);font-size:12px;padding:4px 2px}#cli{flex:none;background:var(--bg-input);border-top:1px solid var(--border);font-family:var(--mono);font-size:12.5px;display:flex;flex-direction:column}#cli-history{height:72px;overflow-y:auto;padding:4px 10px 0;color:#9db4c8;line-height:1.5;white-space:pre-wrap}#cli-history .h-cmd{color:var(--text)}#cli-history .h-result{color:var(--ok)}#cli-history .h-err{color:var(--err)}#cli-input-row{display:flex;align-items:center;padding:3px 10px 5px;gap:6px}#cli-prompt{color:var(--accent);white-space:pre}#cli-input{flex:1;background:transparent;border:none;outline:none;color:var(--text);font:inherit;caret-color:var(--accent)}#statusbar{flex:none;display:flex;align-items:center;background:var(--bg-bar);border-top:1px solid var(--border);padding:2px 10px;gap:4px;font-size:12px;color:var(--text-dim)}#sb-coords{font-family:var(--mono);min-width:230px;color:var(--text)}#statusbar .sb-toggle{padding:2px 8px;font-size:12px;border-radius:3px;color:var(--text-dim)}#statusbar .sb-toggle.active{color:var(--accent);background:var(--accent-soft)}#statusbar .sb-right{margin-left:auto;display:flex;align-items:center;gap:10px}#toasts{position:fixed;top:44px;right:12px;z-index:100;display:flex;flex-direction:column;gap:8px;max-width:380px}.toast{background:var(--bg-panel-2);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:6px;padding:9px 12px;box-shadow:0 4px 16px #0006;font-size:12.5px;line-height:1.5;white-space:pre-wrap;user-select:text;animation:toast-in .18s ease-out}.toast.warn{border-left-color:var(--warn)}.toast.err{border-left-color:var(--err)}@keyframes toast-in{0%{transform:translate(30px);opacity:0}to{transform:none;opacity:1}}#modal-root:empty{display:none}.modal-mask{position:fixed;inset:0;z-index:90;background:#0a0c0f8c;display:flex;align-items:center;justify-content:center}.modal{background:var(--bg-panel);border:1px solid var(--border);border-radius:8px;min-width:380px;max-width:560px;max-height:82vh;overflow:auto;box-shadow:0 12px 40px #00000080}.modal-title{padding:10px 14px;font-weight:600;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.modal-body{padding:12px 14px;display:flex;flex-direction:column;gap:10px}.modal-body .row{display:flex;align-items:center;gap:8px}.modal-body label.opt{display:flex;align-items:center;gap:6px;cursor:pointer;padding:3px 0}.modal-body select,.modal-body input[type=text],.modal-body input[type=number]{background:var(--bg-input);border:1px solid var(--border-soft);color:var(--text);font:inherit;padding:4px 7px;border-radius:4px}.modal-foot{padding:10px 14px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}.modal-foot button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.modal-foot button.primary:hover{filter:brightness(1.1)}.color-pop{position:fixed;z-index:95;background:var(--bg-panel);border:1px solid var(--border);border-radius:6px;padding:8px;box-shadow:0 8px 24px #00000080;display:grid;grid-template-columns:repeat(10,18px);gap:3px}.color-pop .cell{width:18px;height:18px;border-radius:3px;cursor:pointer;border:1px solid rgba(255,255,255,.15)}.color-pop .cell:hover{outline:2px solid #fff}.color-pop .wide{grid-column:1 / -1;text-align:center;padding:3px;font-size:12px}.recent-pop{position:fixed;z-index:95;min-width:340px;max-width:460px;background:var(--bg-panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 10px 30px #00000080;padding:5px;font-size:12.5px}.rp-row{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:5px;cursor:pointer}.rp-row:hover{background:var(--bg-panel-2)}.rp-ext{flex:none;font-size:10px;font-weight:700;letter-spacing:.3px;padding:2px 5px;border-radius:3px;background:#3a4250;color:#b9c4d4;min-width:34px;text-align:center}.rp-ext-dwg{background:#3b9cff38;color:#7db9ff}.rp-ext-dxf{background:#52c07a33;color:#7fd9a2}.rp-ext-json,.rp-ext-geojson{background:#e8b33f2e;color:#e8c36d}.rp-ext-svg{background:#e055552e;color:#ef9a9a}.rp-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}.rp-cache{font-size:10px;color:var(--warn);border:1px solid var(--warn);border-radius:3px;padding:0 3px;margin-left:4px}.rp-meta{flex:none;color:var(--text-dim);font-size:11px}.rp-del{flex:none;padding:2px;border:none;opacity:.45}.rp-del:hover{opacity:1;color:var(--err)}.rp-empty{padding:18px 24px;text-align:center;color:var(--text-dim);line-height:1.7}.rp-foot{border-top:1px solid var(--border-soft);margin-top:4px;padding-top:4px;text-align:right}.rp-foot button{font-size:12px;color:var(--text-dim)}::-webkit-scrollbar{width:9px;height:9px}::-webkit-scrollbar-thumb{background:#3d434e;border-radius:5px;border:2px solid var(--bg-panel)}::-webkit-scrollbar-track{background:transparent}