/* Make Helvetica the default body and heading font.
 *
 * The pydata-sphinx-theme draws every non-monospace surface from two CSS
 * variables, so overriding them here reaches body text, headings, the sidebar,
 * and the navbar in one place. The stack falls back to Arial and the generic
 * sans-serif for platforms without Helvetica. Code blocks keep the theme's
 * monospace font. */

html {
  --pst-font-family-base: Helvetica, "Helvetica Neue", Arial, sans-serif;
  --pst-font-family-heading: Helvetica, "Helvetica Neue", Arial, sans-serif;

  /* The theme's default heading scale runs large (h1 at 2.5rem). Pull it down to
   * a tighter, more paper-like scale. */
  --pst-font-size-h1: 1.8rem;
  --pst-font-size-h2: 1.45rem;
  --pst-font-size-h3: 1.2rem;
  --pst-font-size-h4: 1.05rem;
  --pst-font-size-h5: 0.95rem;
  --pst-font-size-h6: 0.85rem;
}

/* The theme also ships Bootstrap heading rules with hard-coded rem sizes that
 * override the variables above on wide viewports, so restate the scale on the
 * article headings, where it needs to win. */
.bd-article h1 { font-size: var(--pst-font-size-h1); }
.bd-article h2 { font-size: var(--pst-font-size-h2); }
.bd-article h3 { font-size: var(--pst-font-size-h3); }
.bd-article h4 { font-size: var(--pst-font-size-h4); }
.bd-article h5 { font-size: var(--pst-font-size-h5); }
.bd-article h6 { font-size: var(--pst-font-size-h6); }