lab/index.html at master · ethpandaops/lab · GitHub

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<!doctype html>
<html lang="en" itemscope="" itemtype="http://schema.org/Webpage">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
    <meta name="theme-color" content="#efeee5" />
    <style>
      /* Critical CSS - Inline for instant rendering */
      body:not(.react-loaded) * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      body:not(.react-loaded) {
        font-family: system-ui, -apple-system, sans-serif;
        background: rgb(10, 18, 40);
        min-height: 100vh;
        overflow: hidden;
      }

      body:not(.react-loaded) #loading-screen {
        position: fixed;
        inset: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        background: rgb(10, 18, 40);
        z-index: 50;
      }
    </style>
    <script>
      // Initialize theme before React mounts to prevent FOUC
      (function () {
        var themeColors = { light: '#efeee5', dark: '#1a1a1a', star: '#000a1a' };
        var theme = localStorage.getItem('theme');
        var resolved = 'light';

        // Handle explicit theme from localStorage
        if (theme === 'dark') {
          document.documentElement.classList.add('dark');
          resolved = 'dark';
        } else if (theme === 'star') {
          document.documentElement.classList.add('star');
          resolved = 'star';
        } else if (theme === 'light') {
          // Light theme is default, no class needed
        } else {
          // No theme set, use system preference
          var isDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
          if (isDark) {
            document.documentElement.classList.add('dark');
            resolved = 'dark';
          }
        }

        // Set theme-color meta tag to match resolved theme
        var meta = document.querySelector('meta[name="theme-color"]');
        if (meta) meta.setAttribute('content', themeColors[resolved]);
      })();
    </script>
  </head>
  <body>
    <div id="loading-screen"></div>
    <div id="root"></div>
    <script type="module" src="/src/main.tsx"></script>
  </body>
</html>