forked from Timmy_Foundation/the-nexus
feat: PWA manifest + service worker for offline and install support
Add full Progressive Web App support to The Nexus: - manifest.json: Web app manifest with Nexus branding, icons, and PWA config - sw.js: Service worker with cache-first strategy for local assets and stale-while-revalidate for CDN resources (Three.js, fonts) - offline.html: Styled offline fallback page with auto-reconnect - icons/: SVG icons (standard + maskable) with crystalline Nexus design - index.html: Add manifest link, theme colors, Apple PWA meta tags, and service worker registration script Features: - Works offline after first visit - Installable to home screen on mobile and desktop - Graceful degradation when offline - Auto-refresh when connection restored Fixes #14
This commit is contained in:
kimi
198
offline.html
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198
offline.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Offline — The Nexus</title>
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<meta name="description" content="The Nexus is currently offline">
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<style>
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:root {
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--color-bg: #0a1628;
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--color-bg-secondary: #0d1f35;
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--color-primary: #4af0c0;
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--color-primary-dim: #2dd4a8;
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--color-text: #e6f1ff;
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--color-text-muted: #8b9bb4;
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}
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
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background: var(--color-bg);
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color: var(--color-text);
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min-height: 100vh;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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text-align: center;
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padding: 2rem;
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background: radial-gradient(ellipse at center, var(--color-bg-secondary) 0%, var(--color-bg) 70%);
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}
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.container {
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max-width: 480px;
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}
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.icon {
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width: 120px;
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height: 120px;
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margin-bottom: 2rem;
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animation: pulse 2s ease-in-out infinite;
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}
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@keyframes pulse {
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0%, 100% { opacity: 1; transform: scale(1); }
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50% { opacity: 0.7; transform: scale(0.95); }
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}
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h1 {
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font-size: 2rem;
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font-weight: 300;
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margin-bottom: 1rem;
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letter-spacing: 0.05em;
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}
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.nexus-title {
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color: var(--color-primary);
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font-weight: 500;
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}
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p {
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color: var(--color-text-muted);
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line-height: 1.6;
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margin-bottom: 2rem;
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}
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.status {
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display: inline-flex;
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align-items: center;
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gap: 0.5rem;
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background: rgba(74, 240, 192, 0.1);
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border: 1px solid rgba(74, 240, 192, 0.3);
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padding: 0.75rem 1.5rem;
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border-radius: 8px;
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font-size: 0.875rem;
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color: var(--color-primary);
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margin-bottom: 1.5rem;
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}
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.status::before {
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content: '';
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width: 8px;
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height: 8px;
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background: var(--color-primary);
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border-radius: 50%;
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animation: blink 1.5s ease-in-out infinite;
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}
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@keyframes blink {
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0%, 100% { opacity: 1; }
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50% { opacity: 0.3; }
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}
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.btn {
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display: inline-flex;
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align-items: center;
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gap: 0.5rem;
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background: var(--color-primary);
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color: var(--color-bg);
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border: none;
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padding: 0.875rem 1.5rem;
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border-radius: 8px;
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font-size: 1rem;
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font-weight: 500;
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cursor: pointer;
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transition: all 0.2s ease;
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text-decoration: none;
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}
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.btn:hover {
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background: var(--color-primary-dim);
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transform: translateY(-1px);
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}
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.btn:active {
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transform: translateY(0);
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}
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.hint {
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margin-top: 2rem;
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font-size: 0.75rem;
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color: var(--color-text-muted);
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}
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/* Crystal animation */
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.crystal {
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fill: none;
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stroke: var(--color-primary);
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stroke-width: 2;
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}
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.crystal-center {
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fill: var(--color-primary);
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}
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</style>
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</head>
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<body>
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<div class="container">
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<svg class="icon" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
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<!-- Crystal icosahedron representation -->
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<path class="crystal" d="M50,15 L84.6,42.5 L84.6,72.5 L50,85 L15.4,72.5 L15.4,42.5 Z" opacity="0.8"/>
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<path class="crystal" d="M50,15 L50,85 M15.4,42.5 L84.6,72.5 M84.6,42.5 L15.4,72.5" opacity="0.5"/>
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<circle class="crystal-center" cx="50" cy="55" r="8" opacity="0.9"/>
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<!-- Offline indicator -->
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<circle cx="75" cy="25" r="12" fill="#ff6b6b" opacity="0.9"/>
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<path d="M69,25 L81,25" stroke="white" stroke-width="2"/>
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</svg>
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<h1>The <span class="nexus-title">Nexus</span> is Dormant</h1>
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<div class="status">
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<span>You're offline</span>
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</div>
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<p>
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The crystalline pathways cannot form without a connection to the sovereign network.
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Check your connection and try again to enter the 3D realm.
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</p>
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<button class="btn" onclick="window.location.reload()">
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<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
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<polyline points="23 4 23 10 17 10"></polyline>
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<path d="M20.49 15a9 9 0 1 1-2.12-9.36L23 10"></path>
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</svg>
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Reconnect
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</button>
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<p class="hint">
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Core assets are cached for offline use. Some features may be limited without connectivity.
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</p>
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</div>
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<script>
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// Auto-retry when connection comes back
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window.addEventListener('online', () => {
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window.location.href = '/';
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});
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// Check if we're actually back online
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setInterval(() => {
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if (navigator.onLine) {
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fetch('/', { method: 'HEAD', cache: 'no-store' })
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.then(() => {
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window.location.href = '/';
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})
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.catch(() => {
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// Still unreachable, stay on offline page
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});
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}
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}, 5000);
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</script>
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</body>
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</html>
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