:root{--accent:#e85d26;--bg:#0f0f11;--panel:#1a1a1f;--panel2:#242429;--border:#ffffff14;--text:#f0f0f0;--muted:#888}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%}body{background:var(--bg);color:var(--text);font-family:DM Sans,sans-serif;overflow:hidden}button,input{font-family:inherit}button{-webkit-tap-highlight-color:transparent}.app-shell{background:var(--bg);flex-direction:column;height:100vh;display:flex}.topbar{background:var(--panel);border-bottom:1px solid var(--border);z-index:20;flex-shrink:0;justify-content:space-between;align-items:center;min-height:58px;padding:12px 20px;display:flex}.logo{letter-spacing:-1px;white-space:nowrap;font-family:Syne,sans-serif;font-size:22px;font-weight:800}.logo span{color:var(--accent)}.top-actions{align-items:center;gap:8px;display:flex}.action-btn{background:var(--panel2);border:1px solid var(--border);cursor:pointer;color:var(--muted);white-space:nowrap;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:8px 14px;font-size:12px;text-decoration:none;transition:all .15s;display:flex}.action-btn:hover{color:var(--text);border-color:#ffffff38}.action-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.action-btn.primary:hover{background:#d45220}.main-layout{flex:1;display:flex;overflow:hidden}.left-panel{background:var(--panel);border-right:1px solid var(--border);flex-shrink:0;width:204px;padding:16px;overflow-y:auto}.panel-section{border-bottom:1px solid var(--border);margin-bottom:14px;padding-bottom:14px}.panel-label{text-transform:uppercase;letter-spacing:1.2px;color:var(--muted);margin-bottom:10px;font-size:10px;font-weight:500}.no-margin{margin-bottom:0}.tool-grid{grid-template-columns:repeat(2,1fr);gap:6px;display:grid}.tool-btn{min-width:56px;min-height:58px;color:var(--muted);cursor:pointer;background:0 0;border:1.5px solid #0000;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:5px;font-size:10px;transition:all .15s;display:flex}.tool-btn:hover{background:var(--panel2);color:var(--text);border-color:var(--border)}.tool-btn.active{background:var(--panel2);color:var(--accent);border-color:var(--accent)}.tool-icon{font-size:22px;line-height:1}.hint-text{text-align:center;color:var(--muted);margin-top:10px;font-size:10px;line-height:1.6}.row-between{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.val-badge{background:var(--panel2);color:var(--text);text-align:center;border-radius:6px;min-width:44px;padding:3px 8px;font-size:12px;font-weight:500}input[type=range]{appearance:none;background:var(--panel2);cursor:pointer;border-radius:2px;outline:none;width:100%;height:4px}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--accent);cursor:pointer;border:2px solid var(--bg);width:16px;height:16px;box-shadow:0 0 0 2px var(--accent);border-radius:50%}input[type=range]::-moz-range-thumb{background:var(--accent);cursor:pointer;border:2px solid var(--bg);width:16px;height:16px;box-shadow:0 0 0 2px var(--accent);border-radius:50%}.range-labels{color:var(--muted);justify-content:space-between;margin-top:6px;font-size:10px;display:flex}.color-row{color:var(--muted);align-items:center;gap:12px;margin-bottom:12px;font-size:11px;display:flex}input[type=color]{cursor:pointer;background:var(--panel2);border:none;border-radius:8px;width:36px;height:36px;padding:2px}.swatch-wrap{flex-wrap:wrap;gap:8px;display:flex}.swatch{cursor:pointer;border:2.5px solid #0000;border-radius:999px;width:26px;height:26px;transition:transform .1s,border-color .1s}.swatch:hover{transform:scale(1.15)}.swatch.selected{border-color:#fff;transform:scale(1.15)}.bg-grid{grid-template-columns:repeat(3,1fr);gap:6px;display:grid}.bg-btn{border:1px solid var(--border);cursor:pointer;border-radius:8px;padding:7px 4px;font-size:10px}.bg-btn.white{color:#333;background:#fff;border-color:#ddd}.bg-btn.cream{color:#555;background:#fef9f0;border-color:#e8dcc8}.bg-btn.dark{color:#aaa;background:#1a1a2e}.viewport{cursor:crosshair;touch-action:none;background:repeating-conic-gradient(#1c1c22 0% 25%,#141418 0% 50%) 0 0/20px 20px;flex:1;position:relative;overflow:hidden}.scene{transform-origin:0 0;filter:drop-shadow(0 8px 48px #000c);width:1600px;height:1000px;position:absolute}.canvas{width:1600px;height:1000px;display:block;position:absolute;top:0;left:0}.bg-canvas{z-index:0}.draw-canvas{z-index:1}.placeholder{pointer-events:none;z-index:5;place-items:center;display:grid;position:absolute;inset:0}.placeholder-box{pointer-events:auto;cursor:pointer;text-align:center;border:2px dashed #ffffff1f;border-radius:16px;padding:40px 60px;transition:all .2s}.placeholder-box:hover{background:#ffffff08;border-color:#ffffff3d}.placeholder-icon{color:#ffffff4d;margin-bottom:12px;font-size:46px}.placeholder-title{color:#fff9;margin-bottom:6px;font-size:15px}.placeholder-subtitle{color:#ffffff4d;font-size:12px}.minimap-wrap{z-index:20;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:4px;position:absolute;bottom:60px;right:16px;overflow:hidden}.minimap-wrap canvas{border-radius:4px;display:block}.minimap-vp{border:1.5px solid var(--accent);pointer-events:none;border-radius:2px;position:absolute;box-shadow:0 0 0 1px #e85d264d}.zoom-hud{z-index:20;background:var(--panel);border:1px solid var(--border);border-radius:10px;align-items:center;gap:4px;padding:5px 8px;display:flex;position:absolute;bottom:16px;right:16px}.z-btn{border:1px solid var(--border);background:var(--panel2);width:28px;height:28px;color:var(--text);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;font-size:18px;line-height:1;transition:all .12s;display:flex}.z-btn:hover{background:#333;border-color:#fff3}.zoom-pct{color:var(--muted);text-align:center;min-width:44px;font-size:12px;font-weight:500}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--panel2);border-radius:2px}@media (width<=760px){.topbar{flex-direction:column;align-items:flex-start;gap:10px;height:auto;padding:12px}.top-actions{width:100%;padding-bottom:4px;overflow-x:auto}.main-layout{flex-direction:column}.left-panel{border-right:none;border-bottom:1px solid var(--border);width:100%;max-height:230px;display:block}.tool-grid{grid-template-columns:repeat(4,minmax(64px,1fr))}.placeholder-box{padding:28px}.minimap-wrap{display:none}}