*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-size:14px;color:#1e293b;background:#f1f5f9;overflow:hidden}#app{display:flex;height:100vh;width:100vw}#sidebar{width:280px;min-width:280px;background:#fff;border-right:1px solid #cbd5e1;display:flex;flex-direction:column;overflow-y:auto}#sidebar h1{font-size:18px;font-weight:700;padding:16px 16px 8px;color:#0f172a;letter-spacing:-.02em}.panel{padding:12px 16px;border-bottom:1px solid #e2e8f0}.panel h2{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#64748b;margin-bottom:8px}.panel h3{font-size:12px;font-weight:600;color:#334155;margin:12px 0 4px}.panel h3:first-child{margin-top:0}.panel label{display:flex;flex-direction:column;gap:3px;font-size:12px;font-weight:500;color:#475569;margin-bottom:8px}.panel input[type=number],.panel input[type=text],.panel select{width:100%;padding:6px 8px;border:1px solid #cbd5e1;border-radius:6px;font-size:13px;color:#1e293b;background:#f8fafc;outline:none;transition:border-color .15s}.panel input:focus,.panel select:focus{border-color:#6366f1;box-shadow:0 0 0 2px #6366f126}.file-upload{display:flex;align-items:center;justify-content:center;padding:10px;border:2px dashed #cbd5e1;border-radius:8px;cursor:pointer;font-weight:600;font-size:13px;color:#6366f1;transition:border-color .15s,background .15s;text-align:center;word-break:break-all}.file-upload:hover{border-color:#6366f1;background:#f5f3ff}.file-upload input[type=file]{display:none}.tool-buttons{display:flex;flex-direction:column;gap:4px}.tool-btn{display:flex;align-items:center;gap:6px;padding:7px 10px;border:1px solid #e2e8f0;border-radius:6px;background:#f8fafc;font-size:13px;font-weight:500;color:#334155;cursor:pointer;transition:all .12s;text-align:left}.tool-btn:hover{background:#f1f5f9;border-color:#94a3b8}.tool-btn.active{background:#6366f1;border-color:#6366f1;color:#fff}#summary-panel{flex:1;overflow-y:auto}#summary-content table{width:100%;border-collapse:collapse;font-size:12px;margin-bottom:8px}#summary-content th{text-align:left;font-weight:600;color:#64748b;padding:3px 4px;border-bottom:1px solid #e2e8f0;font-size:11px}#summary-content td{padding:3px 4px;border-bottom:1px solid #f1f5f9}.summary-row{display:flex;justify-content:space-between;padding:4px 0;font-size:12px;color:#475569}.summary-row.total{font-weight:600;color:#1e293b;border-top:1px solid #cbd5e1;margin-top:4px;padding-top:6px}.summary-row.grand-total{font-weight:700;font-size:14px;color:#6366f1;border-top:2px solid #6366f1;margin-top:8px;padding-top:8px}.muted{color:#94a3b8;font-size:12px;font-style:italic}#canvas-container{flex:1;position:relative;overflow:hidden}#main-canvas{display:block;width:100%;height:100%;cursor:crosshair}#status-bar{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-between;padding:6px 12px;background:#0f172ad9;color:#e2e8f0;font-size:12px;font-family:SF Mono,Fira Code,monospace;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}#cursor-coords{color:#94a3b8}