Logistics - live fleet ops

Live shipment board: route lane, progress vs commit, ETA delta, alert chips. Pause / disconnect / throughput slider via streaming helper.

A live, editable Svelte 5 data grid example from the SvGrid gallery (Industry Templates). See the SvGrid documentation for the full API.

About this example

A live shipment dispatch board in the Svelte 5 data grid with about 80 in-flight loads. A route lane column shows origin, destination and carrier, a progress bar is colour-graded by lateness against the committed ETA, status pills cover in transit, loading, delivered, delayed and exception, ETA cells overlay a red delta when the stream pushes a promise later, and an alerts column clusters chips for temperature, route deviation and dwell time. The stream sim emits position, ETA shift, status change and alert events through the same delta-merge pipeline as the order stream demo, with pause, reconnect and a throughput slider.

Live shipment dispatch board: ~80 in-flight loads, each ticking progress, ETA, and the occasional alert. Built on top of the createStreamSim helper from demo 34 so it inherits the same pause / resume / reconnect surface for free.

What the dispatcher sees:

  • **Route lane** column with origin → destination + carrier
  • **Progress** column: gradient bar + percent, color-graded by lateness vs the original committed ETA
  • **Status pills** for in_transit / loading / delivered / delayed / exception
  • **ETA cells** showing the current promise, with a red "+2h" overlay when the stream has pushed it later than promised
  • **Alerts** column: a small chip cluster - temperature, route deviation, dwell time, etc.

The stream emits four event types: position / eta_shift / status_change / alert_raised - exercising the same delta-merge pipeline as the order stream demo, just with a different cell vocabulary.

Imports, features and API used

Imports: @svgrid/grid, ../shared/stream-sim, ../shared/mock-api

Table features registered: rowSortingFeature, columnFilteringFeature

Frequently asked questions

How are stream events merged?

Each event names a shipment id and a patch; the merge finds the row by id and applies it, and the grid re-renders that row. It is the same helper the real-time orders demo uses.

How is lateness visualised?

The progress cell compares the current ETA with the committed one and picks a colour band; the ETA cell adds a plus-hours overlay when the promise has slipped.

Can the board be paused?

Yes. The stream sim buffers events while paused and drains them on resume, and it can simulate a disconnect to show the reconnecting state.

Related documentation

Related articles

Source code (42-logistics-fleet.svelte)

<!-- Documented in: docs/help/recipes.md -->
<script lang="ts">
  /**
   * 42. Logistics / fleet ops
   * --------------------------
   * Live shipment dispatch board: ~80 in-flight loads, each ticking
   * progress, ETA, and the occasional alert. Built on top of the
   * `createStreamSim` helper from demo 34 so it inherits the same
   * pause / resume / reconnect surface for free.
   *
   * What the dispatcher sees:
   *
   *   - **Route lane** column with origin → destination + carrier
   *   - **Progress** column: gradient bar + percent, color-graded
   *     by lateness vs the original committed ETA
   *   - **Status pills** for in_transit / loading / delivered /
   *     delayed / exception
   *   - **ETA cells** showing the current promise, with a red
   *     "+2h" overlay when the stream has pushed it later than
   *     promised
   *   - **Alerts** column: a small chip cluster - temperature,
   *     route deviation, dwell time, etc.
   *
   * The stream emits four event types: position / eta_shift /
   * status_change / alert_raised - exercising the same delta-merge
   * pipeline as the order stream demo, just with a different cell
   * vocabulary.
   */
  import {
    SvGrid,
    tableFeatures,
    rowSortingFeature,
    columnFilteringFeature,
    renderSnippet,
    type ColumnDef,
  } from '@svgrid/grid'
  import { createStreamSim } from '../shared/stream-sim'
  import { createPrng } from '../shared/mock-api'

  // ---- Domain ---------------------------------------------------------

  type Status = 'loading' | 'in_transit' | 'delivered' | 'delayed' | 'exception'
  type AlertKind = 'temp' | 'route' | 'dwell' | 'doc' | 'fuel'
  type LaneCity = 'LAX' | 'SFO' | 'DEN' | 'DFW' | 'ORD' | 'JFK' | 'BOS' | 'ATL' | 'MIA' | 'SEA'

  type Shipment = {
    id: string
    carrier: string
    driver: string
    origin: LaneCity
    destination: LaneCity
    status: Status
    progress: number          // 0–100
    /** Originally promised ETA (epoch ms). */
    promisedEta: number
    /** Currently estimated arrival (epoch ms). */
    currentEta: number
    alerts: AlertKind[]
    lastPing: number
    rowVersion: number
  }

  // ---- Constants ------------------------------------------------------

  const CITIES: readonly LaneCity[] = ['LAX', 'SFO', 'DEN', 'DFW', 'ORD', 'JFK', 'BOS', 'ATL', 'MIA', 'SEA']
  const CARRIERS = ['Apex Freight', 'Helios Lines', 'Pacific Cargo', 'Nordic Haul', 'Atlas Express']
  const DRIVERS = [
    'Sasha Park', 'Jamie Chen', 'Robin Diaz', 'Casey Singh',
    'Drew Olsen', 'Avery Mehta', 'Quinn Tran', 'Reese Khan',
  ]
  const STATUSES: readonly Status[] = ['loading', 'in_transit', 'delivered', 'delayed', 'exception']
  const ALERT_OPTIONS: readonly AlertKind[] = ['temp', 'route', 'dwell', 'doc', 'fuel']

  const prng = createPrng(0xDDFEEDED)

  function pickFromSet<T>(s: Set<T>): T | null {
    if (s.size === 0) return null
    const idx = Math.floor(Math.random() * s.size)
    let i = 0
    for (const v of s) {
      if (i === idx) return v
      i += 1
    }
    return null
  }

  function makeShipment(): Shipment {
    let origin = prng.pick(CITIES)
    let destination = prng.pick(CITIES)
    while (destination === origin) destination = prng.pick(CITIES)
    const start = Date.now() + (prng.int(2, 12) * 3600_000) - (prng.int(0, 8) * 3600_000)
    const status: Status =
      prng.next() < 0.08 ? 'loading' :
      prng.next() < 0.04 ? 'delayed' :
      prng.next() < 0.02 ? 'exception' : 'in_transit'
    const progress = status === 'loading' ? prng.int(0, 5) : prng.int(15, 95)
    const alertCount = prng.next() < 0.7 ? 0 : prng.int(1, 2)
    const alerts: AlertKind[] = []
    while (alerts.length < alertCount) {
      const a = prng.pick(ALERT_OPTIONS)
      if (!alerts.includes(a)) alerts.push(a)
    }
    return {
      id: `LD-${prng.int(100_000, 999_999)}`,
      carrier: prng.pick(CARRIERS),
      driver: prng.pick(DRIVERS),
      origin, destination,
      status, progress,
      promisedEta: start,
      currentEta: start + prng.int(-30, 120) * 60_000,
      alerts,
      lastPing: Date.now() - prng.int(0, 8 * 60_000),
      rowVersion: 1,
    }
  }

  // ---- State ----------------------------------------------------------

  const features = tableFeatures({ rowSortingFeature, columnFilteringFeature })

  let shipments = $state.raw<Shipment[]>(Array.from({ length: 80 }, makeShipment))
  const indexById = new Map<string, number>()
  for (let i = 0; i < shipments.length; i += 1) indexById.set(shipments[i]!.id, i)
  let pulses = $state.raw<Record<string, 'up' | 'down' | 'neutral'>>({})

  let connection = $state<'connecting' | 'open' | 'paused' | 'closed' | 'reconnecting'>('closed')
  let rate = $state(6)

  // ---- Stream ---------------------------------------------------------

  type StreamEvt =
    | { type: 'eta'; id: string; deltaMs: number }
    | { type: 'progress'; id: string; bump: number }
    | { type: 'status'; id: string; status: Status }
    | { type: 'alert'; id: string; alert: AlertKind }
    | { type: 'ping'; id: string }

  function generateEvent(): StreamEvt {
    const liveIds = new Set<string>(shipments.map((s) => s.id))
    const targetId = pickFromSet(liveIds) ?? ''
    const roll = Math.random()
    if (roll < 0.35) return { type: 'progress', id: targetId, bump: prng.int(1, 5) }
    if (roll < 0.55) return { type: 'eta', id: targetId, deltaMs: prng.int(-15, 30) * 60_000 }
    if (roll < 0.70) return { type: 'ping', id: targetId }
    if (roll < 0.80) {
      const next = prng.pick(STATUSES)
      return { type: 'status', id: targetId, status: next }
    }
    return { type: 'alert', id: targetId, alert: prng.pick(ALERT_OPTIONS) }
  }

  // svelte-ignore state_referenced_locally
  const stream = createStreamSim<StreamEvt>({ generate: generateEvent, rate, jitter: 0.45 })

  function applyEvent(event: StreamEvt): void {
    const idx = indexById.get(event.id)
    if (idx === undefined) return
    const next = shipments.slice()
    const current = next[idx]!
    const updated: Shipment = { ...current, lastPing: Date.now(), rowVersion: current.rowVersion + 1 }
    const flash: Record<string, 'up' | 'down' | 'neutral'> = {}

    if (event.type === 'progress') {
      updated.progress = Math.min(100, current.progress + event.bump)
      if (updated.progress >= 100 && updated.status !== 'delivered') {
        updated.status = 'delivered'
      }
      flash[`${current.id}:progress`] = 'up'
    } else if (event.type === 'eta') {
      updated.currentEta = current.currentEta + event.deltaMs
      flash[`${current.id}:eta`] = event.deltaMs > 0 ? 'down' : 'up'
    } else if (event.type === 'status') {
      updated.status = event.status
      flash[`${current.id}:status`] = 'neutral'
    } else if (event.type === 'alert') {
      if (!current.alerts.includes(event.alert)) {
        updated.alerts = [...current.alerts, event.alert]
      }
      flash[`${current.id}:alerts`] = 'down'
    } else {
      // ping: just touch lastPing
    }
    next[idx] = updated
    shipments = next
    pulses = flash
  }

  $effect(() => {
    const off = stream.subscribe((msg) => {
      if (msg.kind === 'status') {
        connection = msg.status
      } else {
        applyEvent(msg.data)
      }
    })
    stream.start()
    return () => {
      off()
      stream.stop()
    }
  })

  function togglePause(): void {
    if (connection === 'paused') stream.resume()
    else stream.pause()
  }
  function simulateDisconnect(): void {
    stream.disconnect(4500)
  }
  function setRate(value: number): void {
    rate = value
    stream.setRate(value)
  }

  // ---- KPIs ----------------------------------------------------------

  const kpis = $derived.by(() => {
    const total = shipments.length
    const inTransit = shipments.filter((s) => s.status === 'in_transit').length
    const lateByMin = shipments.map((s) => (s.currentEta - s.promisedEta) / 60_000)
    const lateCount = lateByMin.filter((m) => m > 0).length
    const totalAlerts = shipments.reduce((sum, s) => sum + s.alerts.length, 0)
    const onTimePct = total ? Math.round(((total - lateCount) / total) * 100) : 0
    return { total, inTransit, lateCount, totalAlerts, onTimePct }
  })

  // ---- Formatters ----------------------------------------------------

  function fmtEta(ts: number): string {
    const ms = ts - Date.now()
    if (Math.abs(ms) < 60_000) return 'now'
    const minutes = Math.floor(Math.abs(ms) / 60_000)
    const past = ms < 0
    if (minutes < 60) return `${past ? 'overdue ' : ''}${minutes}m`
    const hours = Math.floor(minutes / 60)
    const rest = minutes - hours * 60
    return `${past ? 'overdue ' : ''}${hours}h${rest ? ` ${rest}m` : ''}`
  }
  function fmtAgo(ts: number): string {
    const seconds = Math.floor((Date.now() - ts) / 1000)
    if (seconds < 60) return `${seconds}s`
    return `${Math.floor(seconds / 60)}m ago`
  }
  function pulseClass(id: string, field: string): string {
    const d = pulses[`${id}:${field}`]
    return d === 'up' ? 'lo-pulse-up' : d === 'down' ? 'lo-pulse-down' : d === 'neutral' ? 'lo-pulse-neutral' : ''
  }
  function deltaMinutes(s: Shipment): number {
    return Math.round((s.currentEta - s.promisedEta) / 60_000)
  }
</script>

<!-- ───────────────────── CELL SNIPPETS ───────────────────── -->

{#snippet IdCell(props: { row: Shipment })}
  <span class="mono">{props.row.id}</span>
{/snippet}

{#snippet LaneCell(props: { row: Shipment })}
  <span class="lo-lane">
    <span class="lo-city">{props.row.origin}</span>
    <span class="lo-arrow">→</span>
    <span class="lo-city">{props.row.destination}</span>
  </span>
  <div class="lo-carrier">{props.row.carrier}</div>
{/snippet}

{#snippet StatusCell(props: { row: Shipment })}
  <span class={`lo-tick lo-status lo-status-${props.row.status} ${pulseClass(props.row.id, 'status')}`}>
    {props.row.status.replace('_', ' ')}
  </span>
{/snippet}

{#snippet ProgressCell(props: { row: Shipment })}
  {@const delta = deltaMinutes(props.row)}
  {@const tone = delta > 60 ? 'late' : delta > 0 ? 'risk' : 'ok'}
  <span class={`lo-tick lo-prog ${pulseClass(props.row.id, 'progress')}`}>
    <span class="lo-prog-bar">
      <span class={`lo-prog-fill lo-prog-${tone}`} style={`width: ${props.row.progress}%`}></span>
    </span>
    <span class="lo-prog-text tabular-nums">{props.row.progress}%</span>
  </span>
{/snippet}

{#snippet EtaCell(props: { row: Shipment })}
  {@const delta = deltaMinutes(props.row)}
  <span class={`lo-tick lo-eta ${pulseClass(props.row.id, 'eta')}`}>
    {fmtEta(props.row.currentEta)}
    {#if delta > 0}
      <span class="lo-eta-late">+{delta}m</span>
    {/if}
  </span>
{/snippet}

{#snippet AlertsCell(props: { row: Shipment })}
  <span class={`lo-tick lo-alerts ${pulseClass(props.row.id, 'alerts')}`}>
    {#if props.row.alerts.length === 0}
      <span class="lo-no-alerts">-</span>
    {:else}
      {#each props.row.alerts as a (a)}
        <span class={`lo-alert lo-alert-${a}`}>{a}</span>
      {/each}
    {/if}
  </span>
{/snippet}

{#snippet PingCell(props: { row: Shipment })}
  <span class="lo-ping">{fmtAgo(props.row.lastPing)}</span>
{/snippet}

{#snippet PlainCell(props: { row: Shipment; field: keyof Shipment })}
  <span>{props.row[props.field]}</span>
{/snippet}

<!-- ───────────────────── LAYOUT ───────────────────── -->

<section class="lo-shell flex flex-col flex-1 min-h-0 gap-3">
  <!-- KPI strip -->
  <div class="lo-kpi-strip">
    <div class="lo-kpi">
      <div class="lo-kpi-label">Connection</div>
      <div class={`lo-kpi-value lo-conn-${connection}`}>{connection.toUpperCase()}</div>
      <div class="lo-kpi-foot">stream → fleet</div>
    </div>
    <div class="lo-kpi">
      <div class="lo-kpi-label">On screen</div>
      <div class="lo-kpi-value tabular-nums">{kpis.total}</div>
      <div class="lo-kpi-foot">{kpis.inTransit} in transit</div>
    </div>
    <div class="lo-kpi">
      <div class="lo-kpi-label">On-time</div>
      <div class={`lo-kpi-value tabular-nums ${kpis.onTimePct < 90 ? 'lo-down' : ''}`}>{kpis.onTimePct}%</div>
      <div class="lo-kpi-foot">{kpis.lateCount} running late</div>
    </div>
    <div class="lo-kpi">
      <div class="lo-kpi-label">Open alerts</div>
      <div class={`lo-kpi-value tabular-nums ${kpis.totalAlerts > 8 ? 'lo-down' : ''}`}>{kpis.totalAlerts}</div>
      <div class="lo-kpi-foot">across the board</div>
    </div>
    <div class="lo-kpi">
      <div class="lo-kpi-label">Throughput</div>
      <div class="lo-kpi-value tabular-nums">{rate}/s</div>
      <div class="lo-kpi-foot">events arriving</div>
    </div>
  </div>

  <!-- Toolbar -->
  <div class="lo-toolbar">
    <button type="button" class="lo-btn lo-btn-primary" onclick={togglePause}>
      {connection === 'paused' ? '▶ Resume' : '⏸ Pause stream'}
    </button>
    <button type="button" class="lo-btn" onclick={simulateDisconnect}>⚡ Simulate dropout</button>
    <label class="lo-throttle">
      <span class="lo-throttle-label">Rate</span>
      <input type="range" min="1" max="30" step="1" bind:value={rate} oninput={(e) => setRate(Number((e.currentTarget as HTMLInputElement).value))} />
      <span class="lo-throttle-value tabular-nums">{rate}/s</span>
    </label>
  </div>

  <!-- Grid -->
  <div class="flex-1 min-h-0">
    <SvGrid responsive={true}
      columnResize
      data={shipments}
      columns={[
        { field: 'id', header: 'Load', width: 110, editable: false,
          cell: (ctx) => renderSnippet(IdCell, { row: ctx.row.original }) },
        { field: 'origin', header: 'Lane', width: 200, editable: false,
          cell: (ctx) => renderSnippet(LaneCell, { row: ctx.row.original }) },
        { field: 'status', header: 'Status', width: 120, editable: false,
          cell: (ctx) => renderSnippet(StatusCell, { row: ctx.row.original }) },
        { field: 'progress', header: 'Progress', editorType: 'number', width: 200, editable: false,
          cell: (ctx) => renderSnippet(ProgressCell, { row: ctx.row.original }) },
        { field: 'currentEta', header: 'ETA', editorType: 'number', width: 140, editable: false,
          cell: (ctx) => renderSnippet(EtaCell, { row: ctx.row.original }) },
        { field: 'driver', header: 'Driver', width: 150, editable: false,
          cell: (ctx) => renderSnippet(PlainCell, { row: ctx.row.original, field: 'driver' }) },
        { field: 'alerts', header: 'Alerts', width: 180, editable: false,
          cell: (ctx) => renderSnippet(AlertsCell, { row: ctx.row.original }) },
        { field: 'lastPing', header: 'Last ping', editorType: 'number', width: 110, editable: false,
          cell: (ctx) => renderSnippet(PingCell, { row: ctx.row.original }) },
      ] satisfies ColumnDef<typeof features, Shipment>[]}
      features={features}
      filterMode="menu"
      selectionMode="cell"
      enableInlineEditing={false}
      enableCellSelection={true}
      rowHeight={48}
      containerHeight="100%"
      fitColumns={true}
    />
  </div>
</section>

<style>
  /* KPI strip */
  .lo-kpi-strip {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
    flex-shrink: 0;
  }
  .lo-kpi {
    border: 1px solid var(--sg-border, #e2e8f0);
    background: var(--sg-bg, #ffffff);
    border-radius: 10px;
    padding: 12px 14px;
  }
  .lo-kpi-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--sg-muted, #64748b);
    margin-bottom: 6px;
  }
  .lo-kpi-value {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.01em;
  }
  .lo-kpi-foot {
    margin-top: 6px;
    font-size: 11px;
    color: var(--sg-muted, #64748b);
  }
  .lo-down { color: #dc2626; }
  :global([data-theme='dark']) .lo-down { color: #f87171; }
  .lo-conn-open { color: #16a34a; }
  .lo-conn-paused { color: #ca8a04; }
  .lo-conn-reconnecting { color: #d97706; }
  .lo-conn-connecting { color: #2563eb; }
  .lo-conn-closed { color: var(--sg-muted, #64748b); }
  :global([data-theme='dark']) .lo-conn-open { color: #4ade80; }

  /* Toolbar */
  .lo-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }
  .lo-btn {
    border: 1px solid var(--sg-border, #cbd5e1);
    background: var(--sg-bg, #ffffff);
    color: var(--sg-fg, #1e293b);
    border-radius: 6px;
    padding: 5px 12px;
    font-size: 12px;
    cursor: pointer;
  }
  .lo-btn:hover { background: var(--sg-header-bg, #f1f5f9); }
  .lo-btn-primary {
    border-color: transparent;
    background: var(--sg-accent, #2563eb);
    color: var(--sg-on-accent, #fff);
  }
  .lo-throttle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 10px;
    border: 1px solid var(--sg-border, #cbd5e1);
    border-radius: 6px;
    font-size: 11.5px;
    color: var(--sg-muted, #64748b);
  }
  .lo-throttle input[type='range'] { width: 140px; }
  .lo-throttle-label { color: var(--sg-muted, #64748b); }
  .lo-throttle-value { color: var(--sg-fg, #1e293b); font-weight: 600; }

  /* Cells */
  :global(.mono) { font-family: ui-monospace, Menlo, monospace; font-size: 12px; }
  :global(.lo-tick) {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0 3px;
    border-radius: 3px;
  }
  :global(.lo-pulse-up)      { animation: lo-pulse-up 700ms ease-out; }
  :global(.lo-pulse-down)    { animation: lo-pulse-down 700ms ease-out; }
  :global(.lo-pulse-neutral) { animation: lo-pulse-neutral 700ms ease-out; }
  @keyframes lo-pulse-up   { 0% { background: rgba(34,197,94,.55); } 100% { background: transparent; } }
  @keyframes lo-pulse-down { 0% { background: rgba(239,68,68,.55); } 100% { background: transparent; } }
  @keyframes lo-pulse-neutral { 0% { background: rgba(59,130,246,.55); } 100% { background: transparent; } }

  :global(.lo-lane) {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
  }
  :global(.lo-city) {
    font-family: ui-monospace, Menlo, monospace;
    font-size: 12.5px;
  }
  :global(.lo-arrow) { color: var(--sg-muted, #64748b); }
  :global(.lo-carrier) {
    font-size: 11px;
    color: var(--sg-muted, #64748b);
  }

  :global(.lo-status) {
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: capitalize;
  }
  :global(.lo-status-loading)    { background: #dbeafe; color: #1d4ed8; }
  :global(.lo-status-in_transit) { background: #dcfce7; color: #166534; }
  :global(.lo-status-delivered)  { background: #ccfbf1; color: #115e59; }
  :global(.lo-status-delayed)    { background: #fef3c7; color: #92400e; }
  :global(.lo-status-exception)  { background: #fee2e2; color: #b91c1c; }
  :global([data-theme='dark'] .lo-status-loading)    { background: rgba(59,130,246,.18); color: #93c5fd; }
  :global([data-theme='dark'] .lo-status-in_transit) { background: rgba(34,197,94,.18); color: #4ade80; }
  :global([data-theme='dark'] .lo-status-delivered)  { background: rgba(20,184,166,.18); color: #5eead4; }
  :global([data-theme='dark'] .lo-status-delayed)    { background: rgba(245,158,11,.18); color: #fbbf24; }
  :global([data-theme='dark'] .lo-status-exception)  { background: rgba(239,68,68,.18); color: #f87171; }

  :global(.lo-prog) {
    width: 100%;
    display: inline-flex;
  }
  :global(.lo-prog-bar) {
    position: relative;
    flex: 1 1 0;
    height: 6px;
    background: var(--sg-border, #e2e8f0);
    border-radius: 3px;
    overflow: hidden;
    margin-right: 6px;
  }
  :global(.lo-prog-fill) {
    position: absolute; inset: 0 auto 0 0;
    transition: width 500ms ease-out;
  }
  :global(.lo-prog-ok)   { background: #16a34a; }
  :global(.lo-prog-risk) { background: #ca8a04; }
  :global(.lo-prog-late) { background: #dc2626; }
  :global(.lo-prog-text) {
    font-size: 11px;
    color: var(--sg-muted, #64748b);
    min-width: 38px;
    text-align: right;
  }

  :global(.lo-eta) {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
  }
  :global(.lo-eta-late) {
    background: rgba(239, 68, 68, 0.12);
    color: #b91c1c;
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 10.5px;
    margin-left: 4px;
  }
  :global([data-theme='dark'] .lo-eta-late) { background: rgba(239,68,68,.18); color: #f87171; }

  :global(.lo-alerts) {
    display: inline-flex;
    gap: 3px;
    flex-wrap: wrap;
  }
  :global(.lo-no-alerts) { color: var(--sg-muted, #64748b); }
  :global(.lo-alert) {
    padding: 1px 7px;
    border-radius: 4px;
    font-size: 10.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
  }
  :global(.lo-alert-temp)  { background: #fee2e2; color: #b91c1c; }
  :global(.lo-alert-route) { background: #fef3c7; color: #92400e; }
  :global(.lo-alert-dwell) { background: #dbeafe; color: #1d4ed8; }
  :global(.lo-alert-doc)   { background: #e0e7ff; color: #3730a3; }
  :global(.lo-alert-fuel)  { background: #fde68a; color: #78350f; }
  :global([data-theme='dark'] .lo-alert-temp)  { background: rgba(239,68,68,.18); color: #f87171; }
  :global([data-theme='dark'] .lo-alert-route) { background: rgba(245,158,11,.18); color: #fbbf24; }
  :global([data-theme='dark'] .lo-alert-dwell) { background: rgba(59,130,246,.18); color: #93c5fd; }
  :global([data-theme='dark'] .lo-alert-doc)   { background: rgba(99,102,241,.18); color: #a5b4fc; }
  :global([data-theme='dark'] .lo-alert-fuel)  { background: rgba(217,119,6,.18); color: #fcd34d; }

  :global(.lo-ping) {
    font-size: 11px;
    color: var(--sg-muted, #64748b);
    font-variant-numeric: tabular-nums;
  }
</style>

View this example on GitHub

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