Refactor styles and components for improved UI consistency

- Updated login page layout by removing unnecessary classes.
- Redesigned 404 not found page with new layout and styles.
- Enhanced public pages with consistent font styling and hover effects.
- Improved ranking page header styling for better readability.
- Updated rules page with consistent font and link styles.
- Enhanced statistics page header styling.
- Refined global CSS variables for better theme consistency.
- Updated button styles for improved interaction feedback.
- Enhanced table styles for better readability and interaction.
- Updated Tailwind configuration to include new font families.

src/pages/not-found.astro

@@ -4,36 +4,9 @@ import {t} from "astro-i18n";
 ---
 
 <PageLayout title={t("404.title")}>
-    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 400">
-        <!-- 404 Text - heller für besseren Kontrast -->
-        <text x="400" y="150" font-family="Arial Black" font-size="120" fill="#ffffff" text-anchor="middle">404</text>
-
-        <!-- Trauriger Roboter - hellere Farben für besseren Kontrast -->
-        <!-- Körper -->
-        <rect x="350" y="200" width="100" height="120" rx="10" fill="#888888"/>
-
-        <!-- Kopf -->
-        <rect x="365" y="160" width="70" height="60" rx="5" fill="#888888"/>
-
-        <!-- Augen -->
-        <circle cx="385" cy="185" r="8" fill="#ff6b6b"/>
-        <circle cx="415" cy="185" r="8" fill="#ff6b6b"/>
-
-        <!-- Antenne -->
-        <line x1="400" y1="160" x2="400" y2="140" stroke="#888888" stroke-width="4"/>
-        <circle cx="400" cy="135" r="5" fill="#888888"/>
-
-        <!-- Arme -->
-        <rect x="320" y="220" width="30" height="10" rx="5" fill="#888888"/>
-        <rect x="450" y="220" width="30" height="10" rx="5" fill="#888888"/>
-
-        <!-- Text unter dem Roboter - heller für besseren Kontrast -->
-        <text x="400" y="360" font-family="Arial" font-size="24" fill="#ffffff" text-anchor="middle">{t("404.description")}</text>
-
-        <!-- Dekorative Elemente - heller für besseren Kontrast -->
-        <circle cx="250" cy="100" r="5" fill="#bbbbbb"/>
-        <circle cx="550" cy="150" r="5" fill="#bbbbbb"/>
-        <circle cx="200" cy="300" r="5" fill="#bbbbbb"/>
-        <circle cx="600" cy="250" r="5" fill="#bbbbbb"/>
-    </svg>
+    <div class="flex flex-col items-center justify-center py-20">
+        <span style="font-family: 'Barlow Condensed', sans-serif; font-size: clamp(6rem, 15vw, 12rem); font-weight: 900; line-height: 1; color: rgba(245, 158, 11, 0.1);">404</span>
+        <div style="width: 4rem; height: 2px; background: linear-gradient(90deg, transparent, #f59e0b, transparent); margin: 1.5rem 0;"></div>
+        <p style="font-family: 'Barlow Condensed', sans-serif; font-size: 1.1rem; letter-spacing: 0.15em; text-transform: uppercase; color: rgba(163, 163, 163, 0.7);">{t("404.description")}</p>
+    </div>
 </PageLayout>