DISCOVER-Cookbook/DISCOVER/404.html at c9d6770c6493f5857fa2c56c9719cf7f29ad1fd0 · Sufiyan-MSA/DISCOVER-Cookbook · 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>404 - Not Found</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      min-height: 100vh;
      background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 50%, #dee2e6 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      overflow-x: hidden;
      position: relative;
      padding: 1rem;
    }

    @media (prefers-reduced-motion: reduce) {
      body *,
      body *::before,
      body *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
    }

    .light-blur {
      position: absolute;
      width: min(500px, 90vw);
      height: min(500px, 90vw);
      background: radial-gradient(circle at center, rgba(232, 146, 23, 0.08) 0%, transparent 70%);
      border-radius: 50%;
      filter: blur(60px);
      top: 15%;
      left: 5%;
      animation: drift 12s ease-in-out infinite alternate;
      z-index: 0;
      pointer-events: none;
    }

    @keyframes drift {
      0%   { transform: translate(0, 0); }
      100% { transform: translate(40px, 25px); }
    }

    .glass-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      padding: 2rem 2.5rem;
      border-radius: 16px;
      border: 1px solid rgba(222, 226, 230, 0.8);
      max-width: 520px;
      width: 100%;
      text-align: center;
      z-index: 1;
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
    }

    h1 {
      font-size: clamp(1.75rem, 5vw, 2.5rem);
      color: #222832;
      margin-bottom: 0.5rem;
      font-weight: 600;
      line-height: 1.2;
    }

    .card-content p {
      font-size: clamp(0.95rem, 2.5vw, 1.1rem);
      color: #495057;
      margin-bottom: 1rem;
      line-height: 1.5;
    }

    .card-content p:last-of-type {
      margin-bottom: 1.25rem;
    }

    .card-content strong {
      color: #222832;
    }

    .actions {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      justify-content: center;
      margin-bottom: 1.25rem;
    }

    a.cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0.6rem 1.25rem;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 600;
      font-size: 0.95rem;
      transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
      cursor: pointer;
    }

    a.cta-primary {
      background: #e89217;
      color: #1a1a1a;
    }

    a.cta-primary:hover {
      background: #d48314;
      box-shadow: 0 2px 8px rgba(232, 146, 23, 0.35);
    }

    a.cta-secondary {
      background: #f8f9fa;
      color: #222832;
      border: 1px solid #dee2e6;
    }

    a.cta-secondary:hover {
      background: #e9ecef;
      border-color: #ced4da;
    }

    a.cta:focus {
      outline: 2px solid #e89217;
      outline-offset: 2px;
    }

    .language-section {
      margin-top: 1.5rem;
      padding-top: 1.25rem;
      border-top: 1px solid #e9ecef;
    }

    .language-section label {
      display: block;
      margin-bottom: 0.5rem;
      color: #495057;
      font-size: 0.9rem;
    }

    select {
      padding: 0.5rem 2rem 0.5rem 0.75rem;
      border-radius: 6px;
      border: 1px solid #dee2e6;
      font-size: 1rem;
      background: #fff;
      color: #222832;
      min-height: 40px;
      cursor: pointer;
    }

    select:focus {
      outline: 2px solid #e89217;
      outline-offset: 2px;
    }

    #footer {
      margin-top: 1rem;
      font-size: 0.85rem;
      color: #6c757d;
    }

    /* Tablet */
    @media (max-width: 768px) {
      body {
        padding: 1.5rem;
      }

      .glass-card {
        padding: 1.75rem 2rem;
      }

      .actions {
        flex-direction: column;
        align-items: stretch;
      }

      a.cta {
        width: 100%;
      }
    }

    /* Mobile */
    @media (max-width: 480px) {
      body {
        padding: 1rem;
      }

      .glass-card {
        padding: 1.5rem 1.25rem;
        border-radius: 12px;
      }

      .light-blur {
        width: 70vw;
        height: 70vw;
        top: 10%;
      }
    }

    /* Small phones */
    @media (max-width: 320px) {
      .glass-card {
        padding: 1.25rem 1rem;
      }
    }
  </style>
</head>
<body>
  <div class="light-blur" aria-hidden="true"></div>
  <main class="glass-card" role="main" aria-labelledby="title">
    <h1 id="title">404 - Page Not Found</h1>
    <div class="card-content">
      <p id="message">This page might've wandered off or was never here at all.</p>
      <p id="suggestion">Maybe it was deleted, renamed, or never existed in the first place.</p>
      <p><strong id="what-do">What can you do?</strong></p>
    </div>
    <div class="actions">
      <a href="./intro.html" id="home" class="cta cta-primary" aria-label="Back to home page">Back to Home</a>
      <a href="https://github.com/numfocus/DISCOVER-Cookbook/issues" id="report" class="cta cta-secondary" target="_blank" rel="noopener noreferrer" aria-label="Report this issue on GitHub">Report the Issue</a>
    </div>
    <div class="language-section">
      <label for="language-switcher">Switch language</label>
      <select id="language-switcher" aria-label="Choose page language">
        <option value="en">English</option>
        <option value="es">Español</option>
      </select>
    </div>
    <p id="footer">If you think this is an error, let us know by creating an issue.</p>
  </main>

  <script>
    const translations = {
      en: {
        title: "404 - Page Not Found",
        message: "This page might've wandered off or was never here at all.",
        suggestion: "Maybe it was deleted, renamed, or never existed in the first place.",
        whatDo: "What can you do?",
        home: "Back to Home",
        report: "Report the Issue",
        footer: "If you think this is an error, let us know by creating an issue."
      },
      es: {
        title: "404 - Página no encontrada",
        message: "Esta página se ha perdido o nunca existió.",
        suggestion: "Tal vez fue eliminada, renombrada o nunca existió.",
        whatDo: "¿Qué puedes hacer?",
        home: "Volver al inicio",
        report: "Informar del problema",
        footer: "Si crees que esto es un error, infórmanos creando un issue."
      }
    };

    function detectLanguage() {
      const pathLang = location.pathname.split("/")[1];
      const refLang = new URL(document.referrer || "", location.origin).pathname.split("/")[1];
      const storedLang = localStorage.getItem("preferredLang");
      return translations[pathLang]
        ? pathLang
        : translations[refLang]
        ? refLang
        : translations[storedLang]
        ? storedLang
        : "en";
    }

    function applyLanguage(lang) {
      const t = translations[lang] || translations["en"];
      document.getElementById("title").textContent = t.title;
      document.getElementById("message").textContent = t.message;
      document.getElementById("suggestion").textContent = t.suggestion;
      document.getElementById("what-do").textContent = t.whatDo;
      document.getElementById("home").textContent = t.home;
      document.getElementById("report").textContent = t.report;
      document.getElementById("footer").textContent = t.footer;
      document.getElementById("language-switcher").value = lang;
      localStorage.setItem("preferredLang", lang);
    }

    const initialLang = detectLanguage();
    applyLanguage(initialLang);

    document.getElementById("language-switcher").addEventListener("change", function () {
      applyLanguage(this.value);
    });
  </script>
</body>
</html>