/* Shapes Furo to the house style. The palette itself is set in conf.py, where
   Furo wants it; this file holds what a variable cannot express. */

/* The mark is portrait, so a width bound keeps it from filling the sidebar. */
.sidebar-logo {
  max-width: 4.5rem;
  margin: 0 auto 0.5rem;
}

.sidebar-brand-text {
  font-weight: 600;
  letter-spacing: -0.025em;
}

h1, h2, h3, h4 {
  letter-spacing: -0.025em;
}

/* Furo underlines links only on hover; the guides lean on them heavily enough
   that a reader should see where they are while scanning. */
article a.reference.internal,
article a.reference.external {
  text-decoration-color: var(--color-brand-content);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

/* Signatures are the spine of the API reference: give them the brand rule so
   they read as landmarks rather than as another grey block. */
dl.py > dt {
  border-left: 3px solid var(--color-brand-content);
  padding-left: 0.6rem;
}