Add initlal service-worker with basic offline handling. Manifest is not yet present.

src/lib/components/ui/station-board/StaffServicesTable.svelte

@@ -9,6 +9,24 @@
 </script>
 
 <table class="departure-board">
+	<colgroup>
+		<col style="width:10%;" />
+		<!-- ID (Headcode) -->
+		<col style="width:17%;" />
+		<!-- ORIG (Origin) -->
+		<col style="width:17%;" />
+		<!-- DEST (Destination) -->
+		<col style="width:9%;" />
+		<!-- PLT (Platform) -->
+		<col style="width: 12%;" />
+		<!-- STA -->
+		<col style="width: 12%;" />
+		<!-- ETA/ATA -->
+		<col style="width: 12%;" />
+		<!-- STD -->
+		<col style="width: 11%;" />
+		<!-- ETD/ATD -->
+	</colgroup>
 	<thead>
 		<tr>
 			<th colspan="4" aria-hidden="true"></th>
@@ -29,10 +47,19 @@
 
 	{#each services as service (getRowKey(service))}
 		<tbody>
-			<tr class="service-row" class:serviceCancelled={service.c} class:servicePass={service.wtp} class:serviceNonPassenger={!service.ip}>
+			<tr
+				class="service-row"
+				class:serviceCancelled={service.c}
+				class:servicePass={service.wtp}
+				class:serviceNonPassenger={!service.ip}
+			>
 				<td class="id-cell">{service.h}</td>
-				<td class="orig-cell"><abbr title={service.og.n.toLocaleUpperCase()}>{service.og.t}</abbr></td>
-				<td class="dest-cell"><abbr title={service.dt.n.toLocaleUpperCase()}>{service.dt.t}</abbr></td>
+				<td class="orig-cell"
+					><abbr title={service.og.n.toLocaleUpperCase()}>{service.og.t}</abbr></td
+				>
+				<td class="dest-cell"
+					><abbr title={service.dt.n.toLocaleUpperCase()}>{service.dt.t}</abbr></td
+				>
 				<td class="plt-cell" class:platSup={service.ps} class:platChange={service.pc}
 					>{service.p || '-'}</td
 				>
@@ -95,9 +122,16 @@
 				{/if}
 			</tr>
 
+			{#if service.o}
+				<tr class="toc-coach-row">
+					<td colspan="8">
+						{service.o}
+					</td>
+				</tr>
+			{/if}
 			{#if service.c && service.cr?.r}
 				<tr class="cancel-row">
-					<td colspan="9">
+					<td colspan="8">
 						{service.cr.r}
 						{#if service.cr.l}
 							{service.cr.n ? 'near' : 'at'}
@@ -126,20 +160,20 @@
 		width: 100%;
 		margin: 5px auto;
 		border-collapse: collapse;
+		table-layout: fixed;
 	}
 
 	.departure-board td {
-		font-family: 'Inconsolate Variable', monospace;
-		font-size: 1rem;
-		font-variant-numeric: tabular-nums;
+		font-family: 'Inconsolata Variable', monospace;
+		font-size: clamp(1rem, 0.475rem + 2.8vw, 1.35rem);
 		font-variant-ligatures: additional-ligatures;
+		overflow: hidden;
 	}
 
 	thead,
 	.cancel-row td,
 	.delay-row td {
-		font-family: 'URW Gothic', sans-serif;
-		letter-spacing: 0.02ch;
+		letter-spacing: -0.15ch;
 	}
 
 	thead {
@@ -152,8 +186,12 @@
 	abbr {
 		text-decoration: none;
 		border-bottom: none;
-    cursor:help;
-}
+		cursor: help;
+	}
+
+	tbody tr:first-child td {
+		border-top: 5px solid transparent;
+	}
 
 	/* Row Logic */
 	.serviceCancelled {
@@ -167,7 +205,7 @@
 
 	.serviceNonPassenger td {
 		opacity: 0.5;
-        font-weight: 200;
+		font-weight: 290;
 		font-style: italic;
 	}
 
@@ -175,12 +213,12 @@
 	.cancel-row td,
 	.delay-row td {
 		font-size: 0.88rem;
-		padding-bottom: 8px;
+		text-align: left;
 	}
 
 	.cancel-row td[colspan],
 	.delay-row td[colspan] {
-		padding-left: 0.75ch;
+		padding-left: 0ch;
 	}
 
 	.cancel-row td {
@@ -192,17 +230,63 @@
 		color: var(--delay-orange);
 		font-style: italic;
 	}
+	@media (min-width: 375px) {
+		.cancel-row td,
+		.delay-row td {
+			font-size: 1.08rem;
+		}
+	}
+	@media (min-width: 420px) {
+		.cancel-row td,
+		.delay-row td {
+			font-size: 1.12rem;
+		}
+	}
+	@media (min-width: 550px) {
+		.cancel-row td,
+		.delay-row td {
+			font-size: 1.18rem;
+		}
+	}
+		@media (min-width: 620px) {
+		.cancel-row td,
+		.delay-row td {
+			font-size: 1.20rem;
+		}
+	}
+
+	.toc-coach-row td {
+		font-family: 'URW Gothic', sans-serif;
+		font-size: 0.7rem;
+		padding: 0;
+		color: rgb(187, 187, 255);
+	}
+	@media(min-width: 400px) {
+		.toc-coach-row td {
+			font-size: 0.8rem;
+		}
+	}
+	@media(min-width: 550px) {
+		.toc-coach-row td {
+			font-size: 0.85rem;
+		}
+	}
 
 	/* Column Specifics */
 	.id-cell {
-		text-align: center;
+		text-align: left;
 		font-weight: 400;
-		font-stretch: 80%;
+		font-stretch: 85%;
 		filter: brightness(0.75);
 	}
+	@media (min-width: 400px) {
+		.id-cell {
+			font-stretch: 90%;
+		}
+	}
 	.orig-cell,
 	.dest-cell {
-		font-stretch: 90%;
+		font-stretch: 80%;
 		font-weight: 400;
 	}
 	.orig-cell {
@@ -213,10 +297,53 @@
 		text-align: right;
 		color: var(--location-yellow);
 	}
+	@media (min-width: 350px) {
+		.orig-cell,
+		.dest-cell {
+			font-stretch: 85%;
+		}
+		@media (min-width: 400px) {
+			.orig-cell,
+			.dest-cell {
+				font-stretch: 90%;
+			}
+		}
+		@media (min-width: 490px) {
+			.orig-cell,
+			.dest-cell {
+				font-stretch: 95%;
+			}
+		}
+		@media (min-width: 520px) {
+			.orig-cell,
+			.dest-cell {
+				font-stretch: 100%;
+			}
+			.orig-cell {
+				text-align: right;
+				padding-right: 7px;
+			}
+			.dest-cell {
+				text-align: left;
+				padding-left: 7px;
+			}
+		}
+		@media (min-width: 600px) {
+			.orig-cell,
+			.dest-cell {
+				letter-spacing: 0.05ch;
+			}
+		}
+	}
 	.plt-cell {
 		text-align: center;
-		font-weight: 405;
-		font-stretch: 70%;
+		font-weight: 410;
+		font-stretch: 100%;
+	}
+	@media (min-width: 525px) {
+		.plt-cell {
+			font-stretch: 110%;
+		}
 	}
 	.plt-cell.platSup {
 		font-weight: 200;
@@ -230,6 +357,7 @@
 	}
 	.pass-cell {
 		text-align: center;
+		font-stretch: 100%;
 	}
 	/* Colour orig and dest values when cancelled */
 	.service-row.serviceCancelled .orig-cell,
@@ -239,7 +367,27 @@
 
 	.time-cell {
 		text-align: center;
-		font-stretch: 70%;
+		font-stretch: 72%;
+	}
+	@media (min-width: 350px) {
+		.time-cell {
+			font-stretch: 77%;
+		}
+	}
+	@media (min-width: 400px) {
+		.time-cell {
+			font-stretch: 82%;
+		}
+	}
+	@media (min-width: 525px) {
+		.time-cell {
+			font-stretch: 90%;
+		}
+	}
+	@media (min-width: 600px) {
+		.time-cell {
+			font-stretch: 100%;
+		}
 	}
 
 	/* RT Logic */

src/lib/global.css

@@ -153,7 +153,7 @@
 	font-display: swap;
 	font-weight: 200 900;
 	font-stretch: 50% 200%;
-	src: url(type/Inconsolata/latin-wdth-normal.woff2) format('woff2-variations');
+	src: url(/type/inconsolata/latin-wdth-normal.woff2) format('woff2-variations');
 	unicode-range:
 		U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329,
 		U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;

src/routes/+error.svelte

@@ -29,7 +29,7 @@
 		</div>
 	{/if}
 
-	{#if $page.error?.owlCode === 'NETWORK_DISCONNECTED'}
+	{#if page.error?.owlCode === 'NETWORK_DISCONNECTED'}
 		<Button onclick={() => window.location.reload()} color={'accent'}>Retry</Button>
 	{:else}
 		<Button href={'/'} color={'accent'}>Return to Home</Button>

src/routes/+layout.svelte

@@ -2,9 +2,9 @@
 	import { page } from '$app/state';
 	import { slide, fade } from 'svelte/transition';
 	import { onMount } from 'svelte';
+	import { browser } from '$app/environment';
 	import { navigating } from '$app/state';
 	import { LOCATIONS } from '$lib/locations-object.svelte';
-	import { nearestStationsState } from '$lib/geohash.svelte';
 
 	import Loading from '$lib/components/ui/Loading.svelte';
 	import TimezoneWarning from '$lib/components/ui/TimezoneWarning.svelte';
@@ -17,7 +17,19 @@
 
 	import { IconHome, IconDialpad, IconSettings, IconHelp, IconDots } from '@tabler/icons-svelte';
 
-	onMount(() => LOCATIONS.init());
+	onMount(async () => {
+		LOCATIONS.init();
+		if (browser && 'serviceWorker' in navigator) {
+			try {
+				const registration = await navigator.serviceWorker.register('/service-worker.js', {
+					type: 'module',
+				});
+				console.info('OwlBoard Service Worker registered', registration.scope);
+			} catch (error) {
+				console.error('Service Worker installation failed: ', error)
+			}
+		}
+	});
 
 	let { children } = $props();
 
@@ -147,7 +159,7 @@
 	<h1 class="viewport-guard-title">Narrow Gauge Detected</h1>
 	<p>
 		Just as trains need the right track width, our data needs a bit more room to stay on the rails.
-		Please expand your view to at least 300px to view the app.
+		Please expand your view to at least 320px to view the app.
 	</p>
 </div>
 
@@ -319,7 +331,7 @@
 		display: none;
 	}
 
-	@media (max-width: 299px) {
+	@media (max-width: 319px) {
 		.viewport-guard {
 			display: block;
 			position: fixed;

src/routes/board/+page.svelte

@@ -90,7 +90,8 @@
 		flex: 1;
 		overflow-y: auto;
 		height: calc(100dvh - 60px);
-		width: 100%;
+		width: 97%;
+		max-width: 700px;
 		margin-bottom: 5px;
 	}
 </style>

src/service-worker.ts

@@ -0,0 +1,76 @@
+/// <reference types="@sveltejs/kit" />
+/// <reference lib="webworker" />
+
+import type { ApiEnvelope } from '@owlboard/api-schema-types';
+import { build, files, version } from '$service-worker';
+
+const sw = self as unknown as ServiceWorkerGlobalScope;
+const CACHE_NAME = `owlboard-cache-${version}`;
+const ASSETS = [...build, ...files, '/'];
+
+sw.addEventListener('install', (event) => {
+    event.waitUntil(
+        caches.open(CACHE_NAME).then((cache) => cache.addAll(ASSETS))
+    );
+});
+
+sw.addEventListener('activate', (event) => {
+    event.waitUntil(
+        caches.keys().then((keys) => {
+            return Promise.all(
+                keys.filter((key) => key !== CACHE_NAME).map((key) => caches.delete(key))
+            );
+        })
+    );
+});
+
+sw.addEventListener('fetch', (event) => {
+    const { request } = event;
+    if (request.method !== 'GET') return;
+    
+    const url = new URL(request.url);
+
+    // 1. Static Assets (Cache-First)
+    if (ASSETS.includes(url.pathname) || url.pathname.startsWith('/_app/')) {
+        event.respondWith(
+            caches.match(request).then((res) => res || fetch(request))
+        );
+        return;
+    }
+
+    // 2. Offline API Fallback (Network-First)
+    if (url.pathname.startsWith('/api') || url.hostname.includes('api')) {
+        event.respondWith(
+            fetch(request).catch(() => {
+                const errorObject: ApiEnvelope.Envelope = {
+                    e: {
+                        code: "NETWORK_DISCONNECTED",
+                        msg: "Cannot connect to the OwlBoard server"
+                    },
+                    t: Math.floor(Date.now() / 1000)
+                };
+                return new Response(
+                    JSON.stringify(errorObject),
+                    {
+                        status: 503,
+                        headers: { 'Content-Type': 'application/json' }
+                    }
+                );
+            })
+        );
+        return;
+    }
+
+    // 3. Navigation Fallback (The Offline 404 Catch-All)
+    // This catches top-level page navigations and hard refreshes
+    if (request.mode === 'navigate' || request.headers.get('accept')?.includes('text/html')) {
+        event.respondWith(
+            fetch(request).catch(() => {
+                // The network request failed entirely (offline).
+                // Serve the cached root shell so SvelteKit can boot.
+                return caches.match('/') as Promise<Response>;
+            })
+        );
+        return;
+    }
+});