cipher-museum/404.html at main · systemslibrarian/cipher-museum · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Exhibit Not Found — The Cipher Museum</title>
  <meta name="description" content="The exhibit you are looking for has been lost to history. Return to The Cipher Museum.">
  <meta name="theme-color" content="#0a0a0f">
  <link rel="icon" type="image/svg+xml" href="favicon.svg">
  <link rel="manifest" href="manifest.webmanifest">
    <meta property="og:title" content="Exhibit Not Found — The Cipher Museum">
  <meta property="og:description" content="The exhibit you are looking for has been lost to history. Return to The Cipher Museum.">
  <meta property="og:type" content="website">
  <meta property="og:url" content="https://ciphermuseum.com/404.html">
  <meta property="og:image" content="https://ciphermuseum.com/images/og/og-default.png">
  <meta property="og:image:width" content="1200">
  <meta property="og:image:height" content="630">
  <meta property="og:image:alt" content="The Cipher Museum — an interactive history of encryption">
  <meta name="twitter:card" content="summary_large_image">
  <meta name="twitter:title" content="Exhibit Not Found — The Cipher Museum">
  <meta name="twitter:description" content="The exhibit you are looking for has been lost to history. Return to The Cipher Museum.">
  <meta name="twitter:image" content="https://ciphermuseum.com/images/og/og-default.png">
  <link rel="canonical" href="https://ciphermuseum.com/404.html">
  <link rel="stylesheet" href="css/museum.css">
  <style>
    .lost-exhibit {
      min-height: 70vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 3rem 1.5rem;
    }
    .lost-code {
      font-family: var(--fm);
      font-size: 8rem;
      font-weight: 700;
      color: var(--gold);
      line-height: 1;
      letter-spacing: .05em;
      margin-bottom: .5rem;
      opacity: .85;
    }
    .lost-title {
      font-family: var(--fh);
      font-size: 1.8rem;
      color: var(--tx1);
      margin-bottom: 1rem;
    }
    .lost-message {
      font-size: 1.05rem;
      color: var(--tx2);
      max-width: 520px;
      line-height: 1.7;
      margin-bottom: 2rem;
    }
    .lost-cipher {
      font-family: var(--fm);
      font-size: .85rem;
      color: var(--tx3);
      letter-spacing: .25em;
      margin-bottom: 2.5rem;
      word-break: break-all;
      max-width: 400px;
    }
    .lost-links {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      justify-content: center;
    }
    .lost-links a {
      display: inline-block;
      padding: .65rem 1.5rem;
      font-family: var(--fm);
      font-size: .8rem;
      letter-spacing: .12em;
      text-transform: uppercase;
      text-decoration: none;
      border: 1px solid var(--gold-b);
      color: var(--gold);
      border-radius: 4px;
      transition: background .2s, color .2s;
    }
    .lost-links a:hover {
      background: var(--gold);
      color: var(--black);
    }
  </style>
</head>
<body>
<a class="skip-link" href="#main-content">Skip to main content</a>

<nav class="museum-nav" aria-label="Primary">
  <a href="index.html" class="nav-brand">🏛️ The Cipher Museum</a>
  <div class="nav-links">
    <a href="museum-map.html">Museum Map</a>
    <a href="timeline.html">Timeline</a>
    <a href="challenges.html">Challenges</a>
    <a href="glossary.html">Glossary</a>
  </div>
</nav>

<main id="main-content">
  <div class="lost-exhibit">
    <div class="lost-code">404</div>
    <h1 class="lost-title">Exhibit Not Found</h1>
    <p class="lost-message">
      This exhibit has been lost to history — like a message encrypted
      with a one-time pad whose key was destroyed. The page you requested
      doesn't exist in our collection.
    </p>
    <div class="lost-cipher" aria-hidden="true">
      WKLV SDJH KDV EHHQ ORVW
    </div>
    <div class="lost-links">
      <a href="index.html">Return to Lobby</a>
      <a href="museum-map.html">Museum Map</a>
      <a href="challenges.html">Try a Challenge</a>
    </div>
  </div>
</main>

<footer></footer>
<script src="js/nav.js" defer></script>
<script src="js/lightbox.js"></script>
</body>
</html>