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saltylab-firmware/ui/diagnostics_panel.css
sl-webui c2d9adad25 feat: WebUI diagnostics dashboard (Issue #562) 
Standalone 3-file diagnostics dashboard (ui/diagnostics_panel.{html,js,css}).
No build step — serve the ui/ directory directly. roslib.js via CDN.

Panels:
- Battery: voltage (V), SOC (%), current (A) with large readouts + gauge bars
  + 2-minute sparkline history canvas, 4S LiPo thresholds
- Temperatures: CPU/GPU (Jetson tegrastats) + Board/STM32 + Motor L/R
  color-coded temp boxes with mini progress bars (green<60 amber<75 red>75°C)
- Motor current: per-wheel current gauge bars + CMD value + balance_state label
  Thresholds: warn 8A / crit 12A
- Resources: RAM / GPU memory / Disk — gauge bars with used/total display
  Thresholds: warn 80% / crit 95%
- WiFi / Network: RSSI signal bars (5-level) + dBm readout + latency (ms)
  MQTT broker status via mqtt_connected KeyValue
- ROS2 node health: full DiagnosticArray node list with OK/WARN/ERROR/STALE
  badges, per-node message preview, MutationObserver count badge

Features:
- Auto 2 Hz refresh via rosbridge subscriptions (throttle_rate: 500ms)
- Pulsing refresh indicator dot on each update
- System status bar: HEALTHY/DEGRADED/FAULT/STALE badge + battery/thermal/net
- Alert thresholds: red/amber/green for every metric
- Responsive CSS grid: 3-col → 2-col → 1-col via media queries
- WS URL persisted in localStorage

ROS topics:
  SUB /diagnostics              diagnostic_msgs/DiagnosticArray
  SUB /saltybot/balance_state   std_msgs/String (JSON)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-14 11:41:43 -04:00

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/* diagnostics_panel.css — Saltybot System Diagnostics Dashboard (Issue #562) */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
--bg0: #050510;
--bg1: #070712;
--bg2: #0a0a1a;
--border: #0c2a3a;
--border2: #1e3a5f;
--text-dim: #374151;
--text-mid: #6b7280;
--text-base: #9ca3af;
--text-hi: #d1d5db;
--cyan: #06b6d4;
--cyan-dim: #0e4f69;
--green: #22c55e;
--amber: #f59e0b;
--red: #ef4444;
--orange: #f97316;
}
body {
font-family: 'Courier New', Courier, monospace;
font-size: 12px;
background: var(--bg0);
color: var(--text-base);
min-height: 100dvh;
display: flex;
flex-direction: column;
}
/* ── Header ── */
#header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 6px 16px;
background: var(--bg1);
border-bottom: 1px solid var(--border);
flex-shrink: 0;
flex-wrap: wrap;
gap: 8px;
}
.logo { color: #f97316; font-weight: bold; letter-spacing: 0.15em; font-size: 13px; }
#conn-bar { display: flex; align-items: center; gap: 6px; }
#conn-dot {
width: 8px; height: 8px; border-radius: 50%;
background: var(--text-dim); flex-shrink: 0; transition: background 0.3s;
}
#conn-dot.connected { background: var(--green); }
#conn-dot.error { background: var(--red); animation: blink 1s infinite; }
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0.4; } }
#ws-input {
background: var(--bg2); border: 1px solid var(--border2); border-radius: 4px;
color: #67e8f9; padding: 2px 8px; font-family: monospace; font-size: 11px; width: 200px;
}
#ws-input:focus { outline: none; border-color: var(--cyan); }
.hdr-btn {
padding: 3px 10px; border-radius: 4px; border: 1px solid var(--border2);
background: var(--bg2); color: #67e8f9; font-family: monospace;
font-size: 10px; font-weight: bold; cursor: pointer; transition: background 0.15s;
}
.hdr-btn:hover { background: var(--cyan-dim); }
#refresh-info {
font-size: 10px; color: var(--text-mid);
display: flex; align-items: center; gap: 4px;
}
#refresh-dot {
width: 6px; height: 6px; border-radius: 50%;
background: var(--text-dim); transition: background 0.2s;
}
#refresh-dot.pulse { background: var(--cyan); animation: blink 0.4s; }
/* ── Status bar ── */
#status-bar {
display: flex; gap: 8px; align-items: center;
padding: 4px 16px; background: var(--bg1);
border-bottom: 1px solid var(--border); font-size: 10px; flex-wrap: wrap;
}
.sys-badge {
padding: 2px 8px; border-radius: 3px; font-weight: bold;
border: 1px solid; letter-spacing: 0.05em;
}
.badge-ok { background: #052e16; border-color: #166534; color: #4ade80; }
.badge-warn { background: #451a03; border-color: #92400e; color: #fcd34d; }
.badge-error { background: #450a0a; border-color: #991b1b; color: #f87171; animation: blink 1s infinite; }
.badge-stale { background: #111827; border-color: #374151; color: #6b7280; }
#last-update { color: var(--text-mid); margin-left: auto; }
/* ── Dashboard grid ── */
#dashboard {
flex: 1;
display: grid;
grid-template-columns: repeat(3, 1fr);
grid-template-rows: auto;
gap: 12px;
padding: 12px;
align-content: start;
overflow-y: auto;
}
@media (max-width: 1024px) { #dashboard { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { #dashboard { grid-template-columns: 1fr; } }
/* Spanning cards */
.span2 { grid-column: span 2; }
.span3 { grid-column: 1 / -1; }
/* ── Card ── */
.card {
background: var(--bg1);
border: 1px solid var(--border);
border-radius: 8px;
padding: 10px 12px;
display: flex;
flex-direction: column;
gap: 8px;
}
.card.alert-warn { border-color: #92400e; }
.card.alert-error { border-color: #991b1b; }
.card-title {
font-size: 9px; font-weight: bold; letter-spacing: 0.15em;
color: #0891b2; text-transform: uppercase;
display: flex; align-items: center; justify-content: space-between;
}
.card-title .badge { font-size: 9px; padding: 1px 6px; border-radius: 3px; }
/* ── Gauge bar ── */
.gauge-row {
display: flex; flex-direction: column; gap: 3px;
}
.gauge-label-row {
display: flex; justify-content: space-between; font-size: 10px;
}
.gauge-label { color: var(--text-mid); }
.gauge-value { font-family: monospace; }
.gauge-track {
width: 100%; height: 8px;
background: var(--bg2); border-radius: 4px;
overflow: hidden; border: 1px solid var(--border2);
}
.gauge-fill {
height: 100%; border-radius: 4px;
transition: width 0.5s ease, background 0.5s ease;
}
/* ── Big metric ── */
.big-metric {
display: flex; align-items: baseline; gap: 4px;
}
.big-num { font-size: 28px; font-weight: bold; font-family: monospace; }
.big-unit { font-size: 11px; color: var(--text-mid); }
/* ── Sparkline ── */
#batt-sparkline {
width: 100%; border-radius: 4px;
border: 1px solid var(--border2);
background: var(--bg2);
display: block;
}
/* ── Node list ── */
.node-row {
display: flex; align-items: center; justify-content: space-between;
padding: 3px 0; border-bottom: 1px solid var(--border);
font-size: 10px;
}
.node-row:last-child { border-bottom: none; }
.node-name { color: var(--text-base); font-family: monospace; }
.node-status {
padding: 1px 6px; border-radius: 3px; font-size: 9px; font-weight: bold;
}
.ns-ok { background: #052e16; color: #4ade80; }
.ns-warn { background: #451a03; color: #fcd34d; }
.ns-error { background: #450a0a; color: #f87171; }
.ns-stale { background: #111827; color: #6b7280; }
/* ── Temp arc display ── */
.temp-grid {
display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px;
}
.temp-box {
background: var(--bg2); border: 1px solid var(--border2);
border-radius: 6px; padding: 6px; text-align: center;
}
.temp-label { font-size: 9px; color: var(--text-mid); margin-bottom: 2px; }
.temp-value { font-size: 22px; font-weight: bold; font-family: monospace; }
.temp-bar-track {
margin-top: 4px; width: 100%; height: 4px;
background: var(--bg0); border-radius: 2px; overflow: hidden;
}
.temp-bar-fill { height: 100%; border-radius: 2px; transition: width 0.5s; }
/* ── Motor section ── */
.motor-grid {
display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px;
}
.motor-box {
background: var(--bg2); border: 1px solid var(--border2);
border-radius: 6px; padding: 8px;
}
.motor-label { font-size: 9px; color: var(--text-mid); margin-bottom: 4px; }
/* ── WiFi bars ── */
.rssi-bars { display: flex; align-items: flex-end; gap: 3px; }
.rssi-bar { width: 6px; border-radius: 2px 2px 0 0; }
/* ── MQTT indicator ── */
.mqtt-status { display: flex; align-items: center; gap: 6px; }
.mqtt-dot {
width: 10px; height: 10px; border-radius: 50%;
background: var(--text-dim); transition: background 0.3s;
}
.mqtt-dot.connected { background: var(--green); animation: none; }
.mqtt-dot.disconnected { background: var(--red); animation: blink 1s infinite; }
/* ── Footer ── */
#footer {
background: var(--bg1); border-top: 1px solid var(--border);
padding: 4px 16px;
display: flex; align-items: center; justify-content: space-between;
flex-shrink: 0; font-size: 10px; color: var(--text-dim);
}
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