export declare const PRELOAD_SCRIPT = "\n(async (timeoutMs) => {\n  // Helper: withTimeout\n  const withTimeout = (promise, msg) => {\n     let timeoutId;\n     const timeoutPromise = new Promise(r => {\n       timeoutId = setTimeout(() => {\n         console.warn(msg);\n         r();\n       }, timeoutMs);\n     });\n     return Promise.race([\n        promise.finally(() => clearTimeout(timeoutId)),\n        timeoutPromise\n     ]);\n  };\n\n  // 1. Wait for fonts\n  await withTimeout(document.fonts.ready, '[Helios Preload] Timeout waiting for fonts');\n\n  // 2. Wait for images (IMG tags, Video posters, SVG images)\n  \n  function findAllImages(root, imagesArray) {\n    const images = imagesArray || [];\n    const walker = document.createTreeWalker(root, NodeFilter.SHOW_ELEMENT);\n    while (walker.nextNode()) {\n      const node = walker.currentNode;\n      if (node.tagName === 'IMG') {\n        images.push(node);\n      }\n      // Check for VIDEO poster\n      if (node.tagName === 'VIDEO' && node.poster) {\n        const img = new Image();\n        img.src = node.poster;\n        images.push(img);\n      }\n      // Check for SVG IMAGE\n      if (node.tagName === 'image' || node.tagName === 'IMAGE') {\n        const href = node.getAttribute('href') || node.getAttribute('xlink:href');\n        if (href) {\n          const img = new Image();\n          img.src = href;\n          images.push(img);\n        }\n      }\n      if (node.shadowRoot) {\n        findAllImages(node.shadowRoot, images);\n      }\n    }\n    return images;\n  }\n\n\n  const images = findAllImages(document);\n  if (images.length > 0) {\n    console.log('[Helios Preload] Preloading ' + images.length + ' images...');\n    const loadPromise = Promise.all(images.map((img) => {\n      if (img.complete) return;\n      return new Promise((resolve) => {\n        img.onload = resolve;\n        img.onerror = resolve; // Don't block on broken images\n      });\n    }));\n    await withTimeout(loadPromise, '[Helios Preload] Timeout waiting for images');\n  }\n\n  // 3. Wait for CSS background images and masks\n  \n  function findAllElements(root, elements) {\n    elements = elements || [];\n    if (root.nodeType === Node.ELEMENT_NODE) {\n      elements.push(root);\n    }\n    const walker = document.createTreeWalker(root, NodeFilter.SHOW_ELEMENT);\n    while (walker.nextNode()) {\n      const node = walker.currentNode;\n      elements.push(node);\n      if (node.shadowRoot) {\n        findAllElements(node.shadowRoot, elements);\n      }\n    }\n    return elements;\n  }\n\n\n  const allElements = findAllElements(document);\n  const backgroundUrls = new Set();\n\n  allElements.forEach((el) => {\n    const targets = [null, '::before', '::after'];\n\n    targets.forEach(pseudo => {\n      const style = window.getComputedStyle(el, pseudo);\n      const props = ['backgroundImage', 'maskImage', 'webkitMaskImage'];\n\n      props.forEach(prop => {\n        const val = style[prop];\n        if (val && val !== 'none') {\n          // Extract URLs from \"url('...'), url(\"...\")\"\n          const matches = val.matchAll(/url\\((['\"]?)(.*?)\\1\\)/g);\n          for (const match of matches) {\n            if (match[2]) {\n              backgroundUrls.add(match[2]);\n            }\n          }\n        }\n      });\n    });\n  });\n\n  if (backgroundUrls.size > 0) {\n    console.log('[Helios Preload] Preloading ' + backgroundUrls.size + ' background images...');\n    const loadPromise = Promise.all(Array.from(backgroundUrls).map((url) => {\n      return new Promise((resolve) => {\n        const img = new Image();\n        img.onload = () => resolve(undefined);\n        img.onerror = () => {\n          console.warn('[Helios Preload] Failed to preload background image: ' + url);\n          resolve(undefined); // Don't block\n        };\n        img.src = url;\n        if (img.complete) resolve(undefined);\n      });\n    }));\n    await withTimeout(loadPromise, '[Helios Preload] Timeout waiting for background images');\n  }\n})\n";