html {
  color-scheme: dark;
  background: var(--shell-background);
  color: var(--shell-foreground);
  font-family: system-ui, sans-serif;
}
body { margin: 0; }
#boot-shell {
  position: fixed;
  inset: 0;
  z-index: 1;
  overflow: auto;
  background: var(--shell-background);
  box-sizing: border-box;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: safe center;
  text-align: center;
  padding: max(24px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right))
    max(24px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
}
#boot-shell img { border-radius: 24px; }
#boot-shell h1 { font-size: 1.5rem; margin: 24px 0 0; }
#boot-shell p { max-width: 32rem; line-height: 1.6; }
#boot-retry {
  font: inherit;
  color: var(--shell-background);
  background: var(--shell-foreground);
  border: 0;
  border-radius: 12px;
  min-height: 48px;
  padding: 12px 32px;
  cursor: pointer;
}
#boot-retry:focus-visible { outline: 2px solid var(--shell-foreground); outline-offset: 4px; }

#boot-shell:has(noscript p) #boot-status { display: none; }