:root {
  color-scheme: light dark;
  --fw-background: light-dark(#f7f5ed, #0a0a0a);
  --fw-surface: light-dark(#fffdf7, #171717);
  --fw-surface-raised: light-dark(#ece9dd, #202020);
  --fw-text: light-dark(#20362d, #ededed);
  --fw-muted: light-dark(#4f6053, #b8b8b8);
  --fw-border: light-dark(#dadccf, #454545);
  --fw-focus: light-dark(#7f4c24, #f1c27d);
}
:root[data-fastweb-mode="light"] { color-scheme: light; }
:root[data-fastweb-mode="dark"] { color-scheme: dark; }
html body { background-color: var(--fw-background); color: var(--fw-text); }
button.fastweb-mode {
  position: static;
  display: inline-grid;
  place-items: center;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--fw-border);
  border-radius: 50%;
  background: var(--fw-surface);
  color: var(--fw-text);
  cursor: pointer;
}
button.fastweb-mode:hover { background: var(--fw-surface-raised); }
button.fastweb-mode:focus-visible { outline: 2px solid var(--fw-focus); outline-offset: 4px; }
.bio-shell > button.fastweb-mode {
  position: absolute;
  inset-block-start: .875rem;
  inset-inline-end: max(1.125rem, calc((100% - var(--wp--style--global--content-size, 29rem)) / 2));
}