Refactor styles to relative rem/em units and enhance accessibility

- Refactor hardcoded px values to rem and em across layout, components, and media queries
- Improve WCAG color contrast by updating --gold-dim token
- Convert hours table to a semantic description list (<dl>)
- Wrap hero logo in h1 for proper heading hierarchy
- Add database ignore rules to .gitignore

.gitignore

@@ -8,6 +8,11 @@ config.php
 # Runtime-generated cache (facebook-stats.php writes here)
 /cache/
 
+# SQLite database file (keep schema/htaccess tracked, ignore live db file)
+db/fitz.sqlite
+db/fitz.sqlite-wal
+db/fitz.sqlite-shm
+
 # Original raw video footage, 27MB, not referenced anywhere on the live
 # site (hero background ended up using assets/brick-texture.png instead).
 # Remove this line if you want the raw footage tracked in git too.

index.php

@@ -1,7 +1,9 @@
 <?php
 require __DIR__ . '/config.php';
 require __DIR__ . '/inc/facebook-stats.php';
+require __DIR__ . '/inc/announcements.php';
 $fbStats = fritz_facebook_stats();
+$activeAnnouncement = get_active_announcement();
 $siteUrl = rtrim(SITE_URL, '/');
 ?>
 <!doctype html>
@@ -10,9 +12,15 @@ $siteUrl = rtrim(SITE_URL, '/');
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1">
-  <title>The Old Fitz Public House | Traditional Irish Pub in Marion, Indiana</title>
+  <title>The Old Fitz Public House</title>
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link rel="stylesheet" href="styles.css">
+  <link href="https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400;1,9..144,500&family=Karla:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap" rel="stylesheet">
+
   <meta name="description" content="The Old Fitz Public House — a traditional Irish pub in Marion, Indiana. Open Thursday through Saturday, 4–10pm. Family friendly, no reservations.">
   <link rel="canonical" href="https://theoldfitz.daviddyer.me">
+  <meta name="color-scheme" content="light dark">
 
   <!-- Social sharing (Open Graph / Twitter Card) -->
   <meta property="og:type" content="website">
@@ -25,15 +33,11 @@ $siteUrl = rtrim(SITE_URL, '/');
   <meta property="og:image:height" content="630">
   <meta property="og:image:alt" content="The Old Fitz Public House">
   <meta property="og:locale" content="en_US">
+
   <meta name="twitter:card" content="summary_large_image">
   <meta name="twitter:title" content="The Old Fitz Public House | Traditional Irish Pub in Marion, Indiana">
   <meta name="twitter:description" content="A traditional Irish pub in Marion, Indiana. Open Thursday through Saturday, 4–10pm. Family friendly, no reservations.">
   <meta name="twitter:image" content="<?= $siteUrl ?>/assets/og-image.png">
-
-  <link rel="preconnect" href="https://fonts.googleapis.com">
-  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-  <link href="https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400;1,9..144,500&family=Karla:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap" rel="stylesheet">
-  <link rel="stylesheet" href="styles.css">
 </head>
 
 <body>
@@ -57,6 +61,16 @@ $siteUrl = rtrim(SITE_URL, '/');
     </div>
   </header>
 
+  <?php if ($activeAnnouncement && !empty($activeAnnouncement['show_banner'])): ?>
+    <div class="announcement-banner banner-<?= htmlspecialchars($activeAnnouncement['type']) ?>" role="region" aria-label="Important Announcement">
+      <div class="container announcement-inner">
+        <span class="announcement-tag"><?= htmlspecialchars($activeAnnouncement['headline']) ?></span>
+        <span class="announcement-sep" aria-hidden="true">·</span>
+        <span class="announcement-text"><?= htmlspecialchars($activeAnnouncement['message']) ?></span>
+      </div>
+    </div>
+  <?php endif; ?>
+
   <main id="main">
 
     <section class="hero">
@@ -113,6 +127,12 @@ $siteUrl = rtrim(SITE_URL, '/');
         <div class="visit-grid">
           <div class="card reveal">
             <h3>On Tap Thu–Sat</h3>
+            <?php if ($activeAnnouncement && !empty($activeAnnouncement['show_in_hours'])): ?>
+              <div class="hours-alert alert-<?= htmlspecialchars($activeAnnouncement['type']) ?>">
+                <strong><?= htmlspecialchars($activeAnnouncement['headline']) ?>:</strong>
+                <span><?= htmlspecialchars($activeAnnouncement['message']) ?></span>
+              </div>
+            <?php endif; ?>
             <dl class="hours-list">
               <div class="hours-row">
                 <dt>Thursday</dt>