:root{--bg:#0b1020;--panel:#131a30;--border:#24304f;--text:#e8edf7;--muted:#8b97b5;--spo2:#34d399;--pulse:#f472b6;--pi:#60a5fa;--danger:#f87171}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);flex-direction:column;align-items:center;min-height:100vh;padding:24px 16px;font-family:Segoe UI,system-ui,sans-serif;display:flex}h1{font-size:1.3rem;font-weight:600}.subtitle{color:var(--muted);margin-top:4px;font-size:.85rem}.app{flex-direction:column;gap:16px;width:100%;max-width:560px;margin-top:20px;display:flex}.install-panel{background:var(--panel);border:1px solid var(--border);color:var(--muted);border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;font-size:.85rem;display:flex}.install-panel .install-btn{white-space:nowrap;padding:8px 16px}.toolbar{align-items:center;gap:10px;display:flex}button{font:inherit;cursor:pointer;color:#fff;background:#2563eb;border:none;border-radius:10px;padding:12px 22px;font-weight:600;transition:background .15s}button:hover{background:#1d4ed8}button:disabled{color:var(--muted);cursor:not-allowed;background:#334066}button.secondary{border:1px solid var(--border);color:var(--text);background:0 0}button.secondary:hover{background:var(--panel)}.status{color:var(--muted);align-items:center;gap:8px;font-size:.85rem;display:flex}.dot{background:var(--muted);border-radius:50%;width:10px;height:10px}.dot.on{background:var(--spo2);box-shadow:0 0 8px var(--spo2)}.dot.err{background:var(--danger)}.vitals{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.card{background:var(--panel);border:1px solid var(--border);text-align:center;border-radius:14px;padding:16px}.card .label{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-size:.75rem}.card .value{font-variant-numeric:tabular-nums;font-size:2.6rem;font-weight:700;line-height:1.2}.card .unit{color:var(--muted);font-size:.8rem}.card.spo2 .value{color:var(--spo2)}.card.pulse .value{color:var(--pulse)}.card.pi .value{color:var(--pi)}.wave-panel{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:12px 16px 16px}.wave-panel .label{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;font-size:.75rem}.wave-panel.clickable{cursor:pointer;transition:border-color .15s}.wave-panel.clickable:hover{border-color:#3b4d7a}.wave-panel .card-hint{text-align:center}canvas{width:100%;height:120px;display:block}.meta{color:var(--muted);justify-content:space-between;font-size:.85rem;display:flex}.log{border:1px solid var(--border);color:var(--muted);white-space:pre-wrap;background:#0d1226;border-radius:10px;max-height:160px;padding:12px;font-family:Consolas,monospace;font-size:.75rem;overflow-y:auto}.warn{color:#fca5a5;background:#3b1f24;border:1px solid #7a3540;border-radius:10px;padding:12px 16px;font-size:.85rem}button.card{background:var(--panel);color:var(--text);padding:16px;font-weight:400;transition:border-color .15s}button.card:hover{background:var(--panel);border-color:#3b4d7a}.card-hint{color:var(--muted);margin-top:8px;font-size:.7rem}.detail{flex-direction:column;gap:16px;display:flex}.detail-header{align-items:center;gap:12px;display:flex}.detail-header h2{font-size:1.1rem;font-weight:600}.back-btn{padding:8px 14px}.detail-current{max-width:200px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:14px 16px 16px}.panel .label{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;font-size:.75rem}.desc p{color:var(--text);font-size:.9rem;line-height:1.5}.desc .example{color:var(--muted);margin-top:8px;font-size:.85rem}.cadence p{color:var(--muted);font-size:.85rem;line-height:1.5}.cadence strong{color:var(--text)}.readings{max-height:220px;margin-top:10px;font-family:Consolas,monospace;font-size:.8rem;list-style:none;overflow-y:auto}.readings li{border-top:1px solid var(--border);justify-content:space-between;padding:5px 8px;display:flex}.reading-time{color:var(--muted)}.reading-value{font-variant-numeric:tabular-nums}.chart-wrap{position:relative}canvas.chart{touch-action:none;cursor:grab;height:220px}canvas.chart:active{cursor:grabbing}.live-btn{border:1px solid var(--border);color:var(--spo2);background:#0d1226;padding:6px 12px;font-size:.75rem;position:absolute;top:8px;right:8px}.live-btn:hover{background:var(--bg)}.chart-hint{color:var(--muted);margin-top:8px;font-size:.75rem}.conn-panel.clickable{cursor:pointer;transition:border-color .15s}.conn-panel.clickable:hover{border-color:#3b4d7a}.conn-status{align-items:center;gap:8px;margin-bottom:14px;font-size:.85rem;display:flex}.conn-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.conn-stat{text-align:center;flex-direction:column;align-items:center;display:flex}.conn-num{font-variant-numeric:tabular-nums;font-size:1.1rem;font-weight:700}.conn-caption{color:var(--muted);margin-top:2px;font-size:.7rem}.conn-status-big{align-items:center;gap:10px;font-size:.95rem;display:flex}.conn-summary-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.conn-value{font-size:1.3rem!important}.conn-timeline li{align-items:center}.conn-timeline-left{align-items:center;gap:8px;display:flex}.clear-btn{margin-top:12px}