Enhance accessibility and structure across multiple components

- Updated the ContactForm component to include labels and aria-describedby attributes for better accessibility.
- Improved the Button component by conditionally adding aria-labels based on text input.
- Enhanced the Form component with aria-describedby attributes for validation feedback.
- Refactored the Layout component to include semantic HTML5 elements for better structure and accessibility.
- Updated the 404 page metadata for improved SEO and user experience.

src/components/ContactForm.astro

@@ -1,6 +1,10 @@
 <form id="contact-form">
-  <input type="email" name="email" id="email" required />
-  <textarea name="message" id="message" required></textarea>
+  <label for="email">Email</label>
+  <input type="email" name="email" id="email" required aria-describedby="email-help" />
+  <div id="email-help" class="sr-only">Enter your email address</div>
+  <label for="message">Message</label>
+  <textarea name="message" id="message" required aria-describedby="message-help"></textarea>
+  <div id="message-help" class="sr-only">Enter your message</div>
   <button type="submit">Send</button>
 </form>
 
@@ -10,8 +14,12 @@
     If you believe this is a mistake, you can request a manual review.
   </p>
   <form id="manual-review-form">
-    <input type="email" id="manual-email" readonly />
-    <textarea id="manual-justification" placeholder="Why is this not spam? (optional)"></textarea>
+    <label for="manual-email">Email</label>
+    <input type="email" id="manual-email" readonly aria-describedby="manual-email-help" />
+    <div id="manual-email-help" class="sr-only">Re-enter your email address for confirmation</div>
+    <label for="manual-justification">Why is this not spam? (optional)</label>
+    <textarea id="manual-justification" placeholder="Why is this not spam? (optional)" aria-describedby="manual-justification-help"></textarea>
+    <div id="manual-justification-help" class="sr-only">Explain why your message is legitimate</div>
     <input type="hidden" id="manual-token" />
     <button type="submit">Request Manual Review</button>
   </form>

src/components/ui/Button.astro

@@ -19,11 +19,13 @@ const variants = {
   tertiary: 'btn btn-tertiary',
   link: 'cursor-pointer hover:text-primary',
 };
+
+const ariaLabel = !text || (typeof text === 'string' && text.trim() === '') ? Astro.props['aria-label'] : undefined;
 ---
 
 {
   type === 'button' || type === 'submit' || type === 'reset' ? (
-    <button type={type} class={twMerge(variants[variant] || '', className)} {...rest}>
+    <button type={type} class={twMerge(variants[variant] || '', className)} {...rest} {...(ariaLabel ? { 'aria-label': ariaLabel } : {})}>
       <Fragment set:html={text} />
       {icon && <Icon name={icon} class="w-5 h-5 ml-1 -mr-1.5 rtl:mr-1 rtl:-ml-1.5 inline-block" />}
     </button>
@@ -32,6 +34,7 @@ const variants = {
       class={twMerge(variants[variant] || '', className)}
       {...(target ? { target: target, rel: 'noopener noreferrer' } : {})}
       {...rest}
+      {...(ariaLabel ? { 'aria-label': ariaLabel } : {})}
     >
       <Fragment set:html={text} />
       {icon && <Icon name={icon} class="w-5 h-5 ml-1 -mr-1.5 rtl:mr-1 rtl:-ml-1.5 inline-block" />}

src/components/ui/Form.astro

@@ -59,8 +59,9 @@ const { inputs, textarea, disclaimer, button = 'Contact us', description = '' }
                 placeholder={placeholder}
                 class="py-3 px-4 block w-full text-md rounded-lg border border-gray-200 dark:border-gray-700 bg-white dark:bg-slate-900"
                 required={required}
+                aria-describedby={`invalid-feedback-${name}`}
               />
-              <div class="invalid-feedback hidden text-red-600 text-sm mt-1" />
+              <div id={`invalid-feedback-${name}`} class="invalid-feedback hidden text-red-600 text-sm mt-1" />
             </div>
           )
       )
@@ -80,8 +81,9 @@ const { inputs, textarea, disclaimer, button = 'Contact us', description = '' }
           placeholder={textarea.placeholder}
           class="py-3 px-4 block w-full text-md rounded-lg border border-gray-200 dark:border-gray-700 bg-white dark:bg-slate-900"
           required
+          aria-describedby="invalid-feedback-textarea"
         />
-        <div class="invalid-feedback hidden text-red-600 text-sm mt-1" />
+        <div id="invalid-feedback-textarea" class="invalid-feedback hidden text-red-600 text-sm mt-1" />
       </div>
     )
   }
@@ -96,6 +98,7 @@ const { inputs, textarea, disclaimer, button = 'Contact us', description = '' }
             type="checkbox"
             class="cursor-pointer mt-1 py-3 px-4 block w-full text-md rounded-lg border border-gray-200 dark:border-gray-700 bg-white dark:bg-slate-900"
             required
+            aria-describedby="invalid-feedback-disclaimer"
           />
         </div>
         <div class="ml-3">
@@ -103,7 +106,7 @@ const { inputs, textarea, disclaimer, button = 'Contact us', description = '' }
             {disclaimer.label}
             <span class="text-red-600">*</span>
           </label>
-          <div class="invalid-feedback hidden text-red-600 text-sm mt-1" />
+          <div id="invalid-feedback-disclaimer" class="invalid-feedback hidden text-red-600 text-sm mt-1" />
         </div>
       </div>
     )

src/layouts/Layout.astro

@@ -67,9 +67,19 @@ const { language, textDirection } = I18N;
 
   <body class="antialiased text-default bg-page tracking-tight">
     <GlobalBackground />
-    <slot name="structured-data" />
-    <slot />
-
+    <header role="banner">
+      <slot name="header" />
+    </header>
+    <nav role="navigation" aria-label="Main navigation">
+      <slot name="navigation" />
+    </nav>
+    <main role="main">
+      <slot name="structured-data" />
+      <slot />
+    </main>
+    <footer role="contentinfo">
+      <slot name="footer" />
+    </footer>
     <BasicScripts />
     <LanguagePersistence />
     <CookieBanner />

src/pages/404.astro

@@ -2,7 +2,11 @@
 import Layout from '~/layouts/Layout.astro';
 import { getHomePermalink } from '~/utils/permalinks';
 
-const title = `Error 404`;
+const metadata = {
+  title: '404 Not Found | 365DevNet',
+  description: 'Sorry, the page you are looking for does not exist. Return to the homepage or explore other sections of 365DevNet.',
+  robots: { index: false, follow: false },
+};
 ---
 
 <style>
@@ -382,7 +386,7 @@ const title = `Error 404`;
   }
 </style>
 
-<Layout metadata={{ title }}>
+<Layout metadata={metadata}>
   <section class="clean-404-bg">
     <div class="floating-elements-404">
       <div class="floating-shape-404 shape-404-1"></div>