:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:#1a1a1a;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;height:100vh;overflow:hidden;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}#root{height:100%;width:100%}button:disabled{opacity:.4;cursor:default}.btn{padding:4px 12px;font-size:13px;border-radius:4px;border:1px solid #ccc;background:#f5f5f5;color:#333;cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}.btn:hover:not(:disabled){background:#e8e8e8;border-color:#aaa}.btn:active:not(:disabled){background:#ddd}.btn-primary{background:#2563eb;border-color:#1d4ed8;color:#fff}.btn-primary:hover:not(:disabled){background:#1d4ed8;border-color:#1e40af}.btn-primary:active:not(:disabled){background:#1e40af}.btn-danger{background:#dc2626;border-color:#b91c1c;color:#fff}.btn-danger:hover:not(:disabled){background:#b91c1c;border-color:#991b1b}.btn-toggle{background:#f5f5f5;border-color:#ccc;color:#555}.btn-toggle.active{background:#dbeafe;border-color:#2563eb;color:#1d4ed8}.btn-toggle:hover:not(:disabled){background:#e8e8e8}.btn-toggle.active:hover:not(:disabled){background:#bfdbfe}.input{background:#fff;color:#1a1a1a;border:1px solid #ccc;border-radius:4px;padding:4px 8px;font-size:13px;transition:border-color .15s}.input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 2px #2563eb26}.select{background:#fff;color:#1a1a1a;border:1px solid #ccc;border-radius:4px;padding:4px 8px;font-size:13px;cursor:pointer;transition:border-color .15s}.select:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 2px #2563eb26}.select:hover{border-color:#999}.tab-content{flex:1;overflow:auto;padding-bottom:28px;transition:padding-bottom .2s}.tab-content.log-open{padding-bottom:228px}.tab-page{padding:16px;max-width:640px}.section{margin-bottom:24px}.section h2{margin:0 0 8px;font-size:15px;font-weight:600;color:#333;letter-spacing:.02em}.section h3{margin:12px 0 6px;font-size:13px;font-weight:600;color:#555}.control-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.data-box{background:#f8f9fa;border:1px solid #ddd;border-radius:4px;padding:8px;font-family:monospace;font-size:12px;height:200px;overflow:auto;white-space:pre-wrap;color:#333;margin-top:8px}.sensor-readout{font-family:monospace;font-size:13px;background:#f0f4ff;border:1px solid #d0daf0;border-radius:4px;padding:8px 12px;margin:8px 0;display:inline-flex;gap:16px}.sensor-readout .axis{display:flex;gap:4px}.sensor-readout .axis-label{color:#666}.sensor-readout .axis-value{color:#1d4ed8;font-variant-numeric:tabular-nums;min-width:72px;text-align:right}.empty-state{color:#737373;font-size:13px;font-style:italic;padding:8px 0}.service-note{color:#737373;font-size:12px;margin:0 0 4px}.app-header{display:flex;align-items:center;gap:12px;padding:8px 12px;background:#f5f7fa;color:#1a1a1a;flex-wrap:wrap;border-bottom:1px solid #ddd;flex-shrink:0}.status-indicator{display:flex;align-items:center;gap:6px;font-size:13px}.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block;flex-shrink:0}.version-badge{font-size:11px;background:#e0e7ef;padding:1px 6px;border-radius:3px;color:#555}.tab-bar{display:flex;background:#f5f7fa;border-bottom:1px solid #ddd;flex-shrink:0;overflow-x:auto}.tab-btn{padding:8px 16px;font-size:13px;border:none;border-bottom:2px solid transparent;background:none;color:#666;cursor:pointer;white-space:nowrap;transition:color .15s,border-color .15s}.tab-btn:hover{color:#555}.tab-btn.active{border-bottom-color:#2563eb;color:#1a1a1a}.log-panel{position:fixed;bottom:0;left:0;right:0;z-index:100;font-family:monospace;font-size:12px;display:flex;flex-direction:column;transition:height .2s ease;height:28px;background:#fff}.log-panel.open{height:228px}.log-panel-tab{display:flex;align-items:center;justify-content:space-between;padding:0 8px 0 0;background:#f5f7fa;border-top:1px solid #ddd;flex-shrink:0;height:28px}.log-panel-toggle{display:flex;align-items:center;gap:4px;padding:4px 12px;background:none;border:none;color:#666;font-family:monospace;font-size:12px;cursor:pointer;height:100%;transition:color .15s}.log-panel-toggle:hover{color:#333}.log-panel-chevron{font-size:10px}.flash-dialog{box-shadow:0 8px 32px #0003,0 2px 8px #0000001a}.flash-dialog h2{font-size:18px;font-weight:600;margin:0;color:#1a1a1a;letter-spacing:-.01em}.flash-dialog p{margin:0;font-size:14px;line-height:1.5;color:#555}.flash-dialog .dialog-actions{display:flex;flex-direction:column;gap:8px;margin-top:4px}.flash-dialog .btn-dialog-primary{background-color:#2563eb;color:#fff;padding:10px 16px;border:none;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;width:100%;transition:background .15s}.flash-dialog .btn-dialog-primary:hover:not(:disabled){background-color:#1d4ed8}.flash-dialog .btn-dialog-primary:disabled{opacity:.4;cursor:not-allowed}.flash-dialog .btn-dialog-secondary{background:none;color:#666;padding:8px 16px;border:none;border-radius:6px;cursor:pointer;font-size:13px;width:100%;transition:color .15s}.flash-dialog .btn-dialog-secondary:hover{color:#333}.flash-progress-track{width:100%;background:#e5e7eb;border-radius:6px;height:10px;overflow:hidden}.flash-progress-fill{height:100%;background:#2563eb;border-radius:6px;transition:width .3s ease}.flash-timings{border-collapse:collapse;font-size:13px;width:100%;text-align:left}.flash-timings th{padding:6px 10px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#888;border-bottom:1px solid #e5e7eb}.flash-timings td{padding:6px 10px;color:#444}.flash-timings tbody tr{border-bottom:1px solid #f0f0f0}.flash-timings .timing-value{text-align:right;font-variant-numeric:tabular-nums;font-family:monospace;font-size:13px}.flash-timings .timing-total{font-weight:600;color:#1a1a1a;border-top:1px solid #e5e7eb}.led-grid{display:grid}.pattern-grid{display:grid;grid-template-columns:repeat(5,44px);grid-template-rows:repeat(6,44px);gap:4px;justify-content:center}.pattern-cell{width:100%;height:100%;padding:0;border:2px solid #ccc;border-radius:4px;cursor:pointer;transition:background .1s,border-color .1s}.pattern-cell.lit{background:#555;border-color:#888}.pattern-cell.unlit{background:#fff;border-color:#ddd}.pattern-cell:hover{border-color:#2563eb}.pattern-char{font-size:1.2rem;font-weight:700;text-align:center;color:#222;margin:0;display:flex;align-items:center;justify-content:center}