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469: Improving 404 Page Design and Mobile Responsiveness #483

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274 changes: 166 additions & 108 deletions DISCOVER/404.html
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Original file line number Diff line number Diff line change
Expand Up @@ -2,169 +2,227 @@
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<title>404 - Not Found</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>404 | DISCOVER Cookbook</title>

<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">

<style>
:root {
--bg-dark: #0b1220;
--card-dark: #111a2b;
--accent-green: #22c55e;
--accent-green-hover: #16a34a;
--text-primary: #f1f5f9;
--text-secondary: #94a3b8;
--border-color: #1e293b;
}

* {
box-sizing: border-box;
margin: 0;
padding: 0;
box-sizing: border-box;
}

body {
height: 100vh;
background: linear-gradient(135deg, black, #e4f0ff);
font-family: "Inter", sans-serif;
background-color: var(--bg-dark);
color: var(--text-primary);
display: flex;
align-items: center;
justify-content: center;
font-family: 'Segoe UI', sans-serif;
overflow: hidden;
position: relative;
}

.light-blur {
position: absolute;
width: 500px;
height: 500px;
background: radial-gradient(circle at center, transparent);
border-radius: 50%;
filter: blur(80px);
top: 20%;
left: 10%;
animation: drift 10s ease-in-out infinite alternate;
z-index: 0;
}

@keyframes drift {
0% { transform: translate(0, 0); }
100% { transform: translate(60px, 30px); }
}

.glass-card {
background: rgba(255, 255, 255, 0.25);
backdrop-filter: blur(12px);
-webkit-backdrop-filter: blur(12px);
padding: 2.5rem 3rem;
border-radius: 20px;
border: 1px solid rgba(255, 255, 255, 0.3);
max-width: 500px;
min-height: 100vh;
padding: 1.5rem;
}

.container {
width: 100%;
max-width: 650px;
background: var(--card-dark);
padding: 3rem 2rem;
border-radius: 14px;
border: 1px solid var(--border-color);
text-align: center;
z-index: 1;
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.error-code {
font-size: 5rem;
font-weight: 700;
color: var(--accent-green);
margin-bottom: 1rem;
}

h1 {
font-size: 2.5em;
color: rgb(52, 51, 51);
margin-bottom: 0.5rem;
font-size: 1.8rem;
margin-bottom: 0.8rem;
}

p {
font-size: 1.1em;
color: rgb(52, 51, 51);
margin-bottom: 1.4rem;
color: var(--text-secondary);
margin-bottom: 1.2rem;
line-height: 1.6;
}

a {
display: inline-block;
margin: 0.4rem;
padding: 0.6rem 1rem;
.button-group {
display: flex;
justify-content: center;
flex-wrap: wrap;
gap: 1rem;
margin-top: 1rem;
}

.btn {
padding: 0.75rem 1.5rem;
border-radius: 8px;
text-decoration: none;
background: #d0bfff;
color: #1f1f1f;
font-weight: 600;
transition: background 0.3s ease;
font-weight: 500;
font-size: 0.95rem;
transition: 0.3s ease;
display: inline-block;
}

.btn-primary {
background-color: var(--accent-green);
color: #0b1220;
}

.btn-primary:hover {
background-color: var(--accent-green-hover);
}

.btn-outline {
border: 1px solid var(--border-color);
color: var(--text-primary);
background: transparent;
}

.btn-outline:hover {
background: #1e293b;
}

a:hover {
background: #c1aaff;
.language-switch {
margin-top: 2rem;
}

.language-switch label {
display: block;
margin-bottom: 0.5rem;
font-size: 0.9rem;
color: var(--text-secondary);
}

select {
margin-top: 1rem;
padding: 0.5rem;
padding: 0.6rem 0.8rem;
border-radius: 6px;
border: 1px solid #ccc;
font-size: 1em;
background: #fff;
border: 1px solid var(--border-color);
background: #0f172a;
color: var(--text-primary);
font-size: 0.95rem;
}

.footer-text {
margin-top: 2rem;
font-size: 0.85rem;
color: var(--text-secondary);
}

@media (max-width: 480px) {
.error-code {
font-size: 3.5rem;
}

.container {
padding: 2rem 1.5rem;
}
}
</style>
</head>

<body>
<div class="light-blur"></div>
<div class="glass-card">
<h1 id="title">404 - Page Not Found</h1>
<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>
<a href="./intro.html" id="home">⬅️ Back to Home</a>
<a href="https://github.com/numfocus/DISCOVER-Cookbook/issues" id="report">🐞 Report the Issue</a>

<div>
<label for="language-switcher" style="display:block; margin-top:1.5rem; color:#444;">🌐 Switch Language:</label>

<main class="container">

<div class="error-code">404</div>

<h1 id="title">Page Not Found</h1>

<p id="message">
The page you're looking for doesn't exist or may have been moved.
</p>

<p id="suggestion">
You can return to the homepage or report the issue.
</p>

<div class="button-group">
<a href="./intro.html" class="btn btn-primary" id="homeBtn">
⬅ Back to Home
</a>

<a href="https://github.com/numfocus/DISCOVER-Cookbook/issues"
target="_blank"
rel="noopener"
class="btn btn-outline"
id="reportBtn">
🐞 Report the Issue
</a>
</div>

<div class="language-switch">
<label for="language-switcher">🌐 Switch Language</label>
<select id="language-switcher">
<option value="en">English</option>
<option value="es">Español</option>
</select>
</div>

<p id="footer" style="margin-top: 1.2rem;">If you think this is an error, let us know by creating an issue.</p>
</div>
<div class="footer-text" id="footerText">
Diversity & Inclusion in Scientific Computing (DISC)
</div>

</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",
title: "Page Not Found",
message: "The page you're looking for doesn't exist or may have been moved.",
suggestion: "You can return to the homepage or report the issue.",
home: "⬅ Back to Home",
report: "🐞 Report the Issue",
footer: "If you think this is an error, let us know by creating an issue."
footer: "Diversity & Inclusion in Scientific Computing (DISC)"
},
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",
title: "Página no encontrada",
message: "La página que buscas no existe o puede haber sido movida.",
suggestion: "Puedes volver al inicio o informar del problema.",
home: "⬅ Volver al inicio",
report: "🐞 Informar del problema",
footer: "Si crees que esto es un error, infórmanos creando un issue."
footer: "Diversidad e Inclusión en Computación Científica (DISC)"
}
};

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"];
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;
document.getElementById("homeBtn").textContent = t.home;
document.getElementById("reportBtn").textContent = t.report;
document.getElementById("footerText").textContent = t.footer;
localStorage.setItem("preferredLang", lang);
}

const initialLang = detectLanguage();
applyLanguage(initialLang);
const storedLang = localStorage.getItem("preferredLang") || "en";
document.getElementById("language-switcher").value = storedLang;
applyLanguage(storedLang);

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

</body>
</html>