<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
        http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">

  <!-- Homepage -->
  <url>
    <loc>https://oilan.ai/</loc>
    <lastmod>2025-12-07</lastmod>
    <changefreq>daily</changefreq>
    <priority>1.0</priority>
  </url>

  <!-- Certificate Query -->
  <url>
    <loc>https://oilan.ai/certificate</loc>
    <lastmod>2025-12-07</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- Student Login -->
  <url>
    <loc>https://oilan.ai/student-login</loc>
    <lastmod>2025-12-07</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- Course Center -->
  <url>
    <loc>https://oilan.ai/courses</loc>
    <lastmod>2025-12-07</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- Training Center -->
  <url>
    <loc>https://oilan.ai/training</loc>
    <lastmod>2025-12-07</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- Projects -->
  <url>
    <loc>https://oilan.ai/projects</loc>
    <lastmod>2025-12-07</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- Exam Center -->
  <url>
    <loc>https://oilan.ai/exam</loc>
    <lastmod>2025-12-07</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
  </url>

  <!-- Training - Auto Exam -->
  <url>
    <loc>https://oilan.ai/training/auto-exam</loc>
    <lastmod>2025-12-07</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>

  <!-- Training - Wrong Questions Practice -->
  <url>
    <loc>https://oilan.ai/training/wrong-questions</loc>
    <lastmod>2025-12-07</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.7</priority>
  </url>

  <!--
  Note: Dynamic routes (courses/:courseId, training/chapter/:chapterName, etc.)
  should be added programmatically based on actual database content.
  Consider implementing a server-side sitemap generator for dynamic content.
  -->

</urlset>
