:root,[data-theme=dark]{--bg: #1e1e1e;--bg-panel: #252526;--bg-elevated: #2d2d2e;--bg-hover: #3a3a3b;--bg-active: #3f3f40;--border: #3c3c3d;--text: #d4d4d4;--text-muted: #858585;--text-bright: #ffffff;--accent: #4f9cf9;--accent-hover: #6cb0ff;--accent-soft: rgba(79, 156, 249, .15);--danger: #f05252;--success: #3fb950;--canvas-bg: #1a1a1a;--canvas-grid: #2a2a2a;--shadow: 0 4px 16px rgba(0, 0, 0, .4);--radius: 4px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;--mono: "SF Mono", Consolas, "Courier New", monospace}[data-theme=light]{--bg: #f3f3f3;--bg-panel: #ffffff;--bg-elevated: #fafafa;--bg-hover: #e8e8e8;--bg-active: #ddd;--border: #d9d9d9;--text: #1f1f1f;--text-muted: #6f6f6f;--text-bright: #000000;--accent: #2b7de9;--accent-hover: #1e6fd6;--accent-soft: rgba(43, 125, 233, .12);--danger: #d83b3b;--success: #1a7f37;--canvas-bg: #ffffff;--canvas-grid: #e8e8e8;--shadow: 0 4px 16px rgba(0, 0, 0, .12)}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{font-family:var(--font);font-size:13px;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer;background:none;border:none;color:var(--text)}input,select{font-family:inherit;color:var(--text);background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:4px 6px;outline:none}input:focus,select:focus{border-color:var(--accent)}#app{display:grid;grid-template-rows:40px 1fr 26px;height:100vh;height:100dvh;width:100%;min-width:0}#menu-bar{border-bottom:1px solid var(--border);background:var(--bg-panel);display:flex;align-items:stretch;padding:0 6px;gap:2px;user-select:none;z-index:20;flex-shrink:0}#main{display:grid;grid-template-columns:44px 1fr clamp(220px,22vw,280px);min-height:0;min-width:0}#toolbar{background:var(--bg-panel);border-right:1px solid var(--border);display:flex;flex-direction:column;align-items:center;padding:6px 4px;gap:3px;overflow-y:auto;min-width:0}#canvas{position:relative;background:var(--canvas-bg);min-width:0;min-height:0;display:flex;align-items:center;justify-content:center;overflow:hidden;touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}#canvas-svg{position:absolute;top:0;left:0;width:100%;height:100%;touch-action:none}#side-panel{background:var(--bg-panel);border-left:1px solid var(--border);display:flex;flex-direction:column;min-height:0;min-width:0;height:100%;overflow:hidden}#layers-panel,#properties-panel{display:flex;flex-direction:column;min-height:0;flex:1}#layers-panel .panel-body,#properties-panel .panel-body{flex:1;min-height:0;overflow-y:auto}#status-bar{border-top:1px solid var(--border);background:var(--bg-panel);display:flex;align-items:center;padding:0 10px;font-size:12px;color:var(--text-muted);gap:16px;user-select:none;white-space:nowrap;overflow-x:auto;scrollbar-width:thin}#status-bar::-webkit-scrollbar{height:6px}.panel-toggle{display:none;align-items:center;padding:0 10px;margin-right:4px;border-radius:var(--radius);cursor:pointer;color:var(--text);flex-shrink:0}.panel-toggle:hover{background:var(--bg-hover)}.panel-toggle svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.menu{position:relative;display:flex;align-items:center;padding:0 10px;border-radius:var(--radius);cursor:pointer}.menu:hover{background:var(--bg-hover)}.menu.open{background:var(--bg-active)}.menu-dropdown{position:absolute;top:100%;left:0;min-width:200px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:4px;z-index:100}.menu-item{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;border-radius:var(--radius);cursor:pointer;gap:24px}.menu-item:hover{background:var(--accent-soft);color:var(--accent-hover)}.menu-item.disabled{opacity:.4;pointer-events:none}.menu-item .kbd{font-family:var(--mono);font-size:11px;color:var(--text-muted)}.menu-sep{height:1px;background:var(--border);margin:4px 6px}.tool-btn{width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);color:var(--text);position:relative}.tool-btn:hover{background:var(--bg-hover)}.tool-btn.active{background:var(--accent-soft);color:var(--accent-hover)}.tool-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.tool-sep{width:100%;height:1px;background:var(--border);margin:4px 0}.panel{display:flex;flex-direction:column;min-height:40%;border-bottom:1px solid var(--border)}.panel:last-child{border-bottom:none}.panel-title{padding:8px 10px;font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--text-muted);font-weight:600;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.panel-body{overflow-y:auto;padding:6px;flex:1}.layer-row{display:grid;grid-template-columns:20px 20px 22px 1fr 20px;align-items:center;gap:4px;padding:4px 6px;border-radius:var(--radius);cursor:pointer;user-select:none}.layer-row:hover{background:var(--bg-hover)}.layer-row.selected{background:var(--accent-soft)}.layer-row .thumb{width:18px;height:18px;border-radius:2px;background:var(--bg-elevated);border:1px solid var(--border)}.layer-row .name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px}.layer-row button.icon-btn{width:20px;height:20px;display:flex;align-items:center;justify-content:center;padding:0;border-radius:3px;font-size:13px;line-height:1;color:var(--text-muted)}.layer-row button.icon-btn:hover{color:var(--text);background:var(--bg-hover)}.layer-row button.icon-btn.active{color:var(--accent)}.layer-row button.icon-btn.inactive{opacity:.3}.layer-row button.del-btn{width:20px;height:20px;display:flex;align-items:center;justify-content:center;padding:0;border-radius:3px;font-size:14px;line-height:1;color:var(--text-muted);opacity:0;transition:opacity .15s ease}.layer-row:hover button.del-btn{opacity:1}.layer-row button.del-btn:hover{color:var(--danger);background:var(--bg-hover)}.layer-row.dragging{opacity:.5}.prop-group{margin-bottom:12px}.prop-group-title{font-size:11px;color:var(--text-muted);margin-bottom:6px;text-transform:uppercase;font-weight:600}.prop-btn{background:var(--bg-hover);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;font-size:12px;transition:background .15s,color .15s,border-color .15s}.prop-btn:hover{background:var(--bg-active, var(--bg-hover))}.prop-btn.danger-btn{color:var(--danger);border-color:var(--danger)}.prop-btn.danger-btn:hover{background:var(--danger);color:#fff}.prop-row{display:grid;grid-template-columns:42px 1fr;align-items:center;gap:6px;margin-bottom:4px}.prop-row label{font-size:11px;color:var(--text-muted)}.prop-row input{width:100%;font-size:12px}.prop-row input[type=color]{padding:0;height:24px;border:none;background:none;cursor:pointer}.color-input-box{display:flex;align-items:center;gap:6px}.color-input-box input[type=text]{flex:1}.none-text{color:var(--text-muted)}.canvas-grid{fill:none;stroke:var(--canvas-grid);stroke-width:1}.selection-overlay{fill:#4f9cf914;stroke:var(--accent);stroke-width:1;stroke-dasharray:4 3}.rubber-band{fill:#4f9cf91a;stroke:var(--accent);stroke-width:1}.handle{fill:#fff;stroke:var(--accent);stroke-width:1.5}.handle-center{fill:var(--accent);stroke:none}#context-menu{position:fixed;min-width:160px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:4px;z-index:200}#context-menu.hidden{display:none}.ctx-item{padding:6px 10px;border-radius:var(--radius);cursor:pointer;display:flex;align-items:center;gap:8px}.ctx-item:hover{background:var(--bg-hover)}.ctx-item.disabled{opacity:.4;pointer-events:none}.ctx-sep{height:1px;background:var(--border);margin:4px 6px}.ctx-item.danger{color:var(--danger)}#toast-container{position:fixed;bottom:36px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:300;align-items:center}.toast{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:8px 16px;box-shadow:var(--shadow);font-size:13px;animation:toast-in .2s ease}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.btn{padding:6px 12px;border-radius:var(--radius);background:var(--bg-elevated);border:1px solid var(--border);color:var(--text)}.btn:hover{background:var(--bg-hover)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.empty-hint{color:var(--text-muted);font-size:12px;text-align:center;padding:16px 8px}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::-webkit-scrollbar-track{background:transparent}select option{background:var(--bg-panel)}.modal-overlay{position:fixed;inset:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:500;animation:modal-fade .15s ease}@keyframes modal-fade{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);min-width:320px;max-width:90vw;max-height:90vh;overflow:auto;animation:modal-pop .18s ease}@keyframes modal-pop{0%{opacity:0;transform:translateY(-8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-header{padding:10px 14px;border-bottom:1px solid var(--border);font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:space-between}.modal-header .modal-close{font-size:18px;line-height:1;color:var(--text-muted);padding:0 4px}.modal-header .modal-close:hover{color:var(--text)}.modal-body{padding:14px}.modal-row{display:grid;grid-template-columns:70px 1fr;align-items:center;gap:8px;margin-bottom:10px}.modal-row label{font-size:12px;color:var(--text-muted)}.modal-row input,.modal-row select{width:100%;font-size:12px}.modal-footer{padding:10px 14px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}.preset-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}.preset-btn{padding:3px 8px;font-size:11px;border-radius:var(--radius);background:var(--bg-panel);border:1px solid var(--border);color:var(--text-muted)}.preset-btn:hover{background:var(--bg-hover);color:var(--text)}@media (max-width: 1024px){#main{grid-template-columns:44px 1fr clamp(200px,24vw,240px)}}@media (max-width: 768px){#app{grid-template-rows:40px 1fr 26px}#main{grid-template-columns:40px 1fr 0}#toolbar{padding:4px 2px}.tool-btn{width:30px;height:30px}.tool-btn svg{width:18px;height:18px}#side-panel{position:fixed;top:40px;right:0;bottom:26px;width:min(280px,80vw);z-index:50;border-left:1px solid var(--border);box-shadow:var(--shadow);transform:translate(100%);transition:transform .2s ease}body.side-panel-open #side-panel{transform:none}.panel-toggle{display:flex}.panel-backdrop{display:block;position:fixed;inset:40px 0 26px;background:#0006;z-index:45;opacity:0;pointer-events:none;transition:opacity .2s ease}body.side-panel-open .panel-backdrop{opacity:1;pointer-events:auto}#status-bar{gap:10px;padding:0 6px}}@media (max-width: 480px){#main{grid-template-columns:36px 1fr 0}#toolbar{padding:3px 1px}.tool-btn{width:26px;height:26px}.tool-btn svg{width:16px;height:16px}#menu-bar{padding:0 4px}.menu{padding:0 8px}}.panel-backdrop{display:none}