:root{--bg:#f1f3f6;--surface:#fff;--surface-2:#f7f8fa;--border:#dfe3e9;--border-strong:#c4cad4;--text:#15181d;--text-muted:#5d6673;--text-faint:#8a93a1;--accent:#1f6feb;--accent-soft:#e7f0ff;--accent-text:#fff;--danger:#c7362f;--ok:#1a7f4b;--shadow-sm:0 1px 2px #1018280f, 0 1px 3px #10182814;--shadow-md:0 4px 12px #1018281a;--shadow-lg:0 16px 48px #1018282e;--radius:8px;--radius-sm:6px;--topbar-h:52px;--toolbar-h:48px;--sidebar-w:268px;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-size:14px}button,input,select,textarea{font:inherit;color:inherit}.app{flex-direction:column;height:100%;display:flex;overflow:hidden}.topbar{height:var(--topbar-h);background:var(--surface);border-bottom:1px solid var(--border);z-index:30;flex:none;align-items:center;gap:10px;padding:0 12px;display:flex}.brand{letter-spacing:-.01em;white-space:nowrap;align-items:center;gap:8px;padding-right:6px;font-weight:650;display:flex}.brand svg{display:block}.filename{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;max-width:260px;font-size:13px;overflow:hidden}.filename .dot{color:var(--accent);font-size:16px;line-height:1}.spacer{flex:auto}.divider{background:var(--border);flex:none;width:1px;height:24px}.btn{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);cursor:pointer;white-space:nowrap;justify-content:center;align-items:center;gap:6px;height:34px;padding:0 11px;transition:background .12s,border-color .12s,color .12s;display:inline-flex}.btn:hover:not(:disabled){background:var(--surface-2)}.btn:active:not(:disabled){background:#eceff3}.btn:disabled{opacity:.42;cursor:default}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text);font-weight:560}.btn.primary:hover:not(:disabled){background:#1a60cf;border-color:#1a60cf}.btn.ghost{background:0 0;border-color:#0000}.btn.ghost:hover:not(:disabled){background:var(--surface-2)}.btn.icon{width:34px;padding:0}.btn.danger{color:var(--danger);background:0 0;border-color:#0000}.btn.danger:hover:not(:disabled){background:#fdecea}.btn.sm{height:28px;padding:0 8px;font-size:13px}.toolbar{min-height:var(--toolbar-h);background:var(--surface);border-bottom:1px solid var(--border);z-index:20;flex:none;align-items:center;gap:6px;padding:7px 12px;display:flex;overflow-x:auto}.tool{border-radius:var(--radius-sm);cursor:pointer;min-width:56px;height:36px;color:var(--text-muted);background:0 0;border:1px solid #0000;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:0 8px;font-size:11px;transition:background .12s,color .12s;display:inline-flex}.tool svg{display:block}.tool:hover{background:var(--surface-2);color:var(--text)}.tool.active{background:var(--accent-soft);color:var(--accent);border-color:#c5dbff}.props{flex-wrap:wrap;align-items:center;gap:8px;padding-left:4px;display:flex}.props label{color:var(--text-muted);white-space:nowrap;align-items:center;gap:5px;font-size:12px;display:inline-flex}.props select,.props input[type=number]{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);height:30px;padding:0 6px}.props input[type=number]{width:56px}.props input[type=range]{width:90px;accent-color:var(--accent)}.toggle-group{border:1px solid var(--border-strong);border-radius:var(--radius-sm);display:inline-flex;overflow:hidden}.toggle-group button{border:0;border-right:1px solid var(--border-strong);background:var(--surface);cursor:pointer;place-items:center;width:30px;height:30px;display:grid}.toggle-group button:last-child{border-right:0}.toggle-group button.on{background:var(--accent-soft);color:var(--accent)}.swatch-wrap{position:relative}.swatch-btn{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);cursor:pointer;place-items:center;width:30px;height:30px;padding:0;display:grid}.swatch-chip{background-image:linear-gradient(45deg,#ddd 25%,#0000 25%),linear-gradient(-45deg,#ddd 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#ddd 75%),linear-gradient(-45deg,#0000 75%,#ddd 75%);background-position:0 0,0 4px,4px -4px,-4px 0;background-size:8px 8px;border:1px solid #0000002e;border-radius:4px;width:18px;height:18px}.swatch-chip>span{border-radius:3px;width:100%;height:100%;display:block}.popover{z-index:60;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);width:max-content;padding:10px;position:absolute;top:calc(100% + 6px);left:0}.swatch-grid{grid-template-columns:repeat(6,24px);gap:6px;display:grid}.swatch-grid button{cursor:pointer;border:1px solid #0000002e;border-radius:5px;width:24px;height:24px;padding:0}.swatch-grid button.sel{outline:2px solid var(--accent);outline-offset:1px}.popover-row{color:var(--text-muted);align-items:center;gap:8px;margin-top:10px;font-size:12px;display:flex}.body{flex:auto;min-height:0;display:flex}.sidebar{width:var(--sidebar-w);flex:0 0 var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);flex-direction:column;min-height:0;display:flex}.sidebar-tabs{border-bottom:1px solid var(--border);flex:none;display:flex}.sidebar-tabs button{cursor:pointer;height:40px;color:var(--text-muted);background:0 0;border:0;border-bottom:2px solid #0000;flex:1;font-size:13px}.sidebar-tabs 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(max-width:860px){.sidebar{top:calc(var(--topbar-h) + var(--toolbar-h));z-index:25;box-shadow:var(--shadow-lg);position:absolute;bottom:0;left:0}}.split-btn{display:inline-flex}.split-btn .btn:first-child{border-top-right-radius:0;border-bottom-right-radius:0}.split-btn .btn.caret{border-left:1px solid #ffffff47;border-top-left-radius:0;border-bottom-left-radius:0;width:26px;padding:0}.save-wrap .popover{width:320px;left:auto;right:0}.save-popover .stack{color:var(--text-muted);flex-direction:column;gap:5px;font-size:12px;display:flex}.save-popover .form-row{margin-top:4px}.save-summary{color:var(--text-muted);margin:10px 0;font-size:12px;line-height:1.5}.btn.pressed{background:var(--accent-soft);color:var(--accent)}.zoom-select{border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);height:30px;padding:0 6px}.filename .pill{vertical-align:1px;margin-left:6px}.thumb-actions button:disabled{opacity:.35;cursor:default}@media (max-width:1100px){.brand-name,.hide-narrow{display:none}.filename{max-width:160px}}@media (max-width:720px){.topbar{gap:6px;overflow-x:auto}.filename{display:none}}