(defcomp ~base-shell (&key title asset-url &rest children)
  (<>
    (raw! "<!doctype html>")
    (html :lang "en"
      (head
        (meta :charset "utf-8")
        (meta :name "viewport" :content "width=device-width, initial-scale=1")
        (title title)
        (style
          "body{margin:0;min-height:100vh;display:flex;align-items:center;"
          "justify-content:center;font-family:system-ui,sans-serif;"
          "background:#fafaf9;color:#1c1917}")
        (link :rel "stylesheet" :type "text/css" :href (str asset-url "/styles/tw.css"))
        (link :rel "stylesheet" :href (str asset-url "/fontawesome/css/all.min.css")))
      (body :class "bg-stone-50 text-stone-900"
        children))))

(defcomp ~error-page (&key title message image asset-url)
  (~base-shell :title title :asset-url asset-url
    (div :class "text-center p-8 max-w-lg mx-auto"
      (div :class "font-bold text-2xl md:text-4xl text-red-500 mb-4"
        (div message))
      (when image
        (div :class "flex justify-center"
          (img :src image :width "300" :height "300"))))))
