/* ── Hero section tweaks ── */
.rio-hero h2 {
  background: linear-gradient(135deg, var(--md-primary-fg-color), #7c4dff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ── Feature cards hover ── */
.rio-grid .card {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.rio-grid .card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

/* ── Sticky tabs polish ── */
.md-tabs {
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

/* ── Code block refinement ── */
.md-typeset code {
  font-size: 0.82em;
}

/* ── "Next steps" table cleanup ── */
.md-typeset table:not([class]) th {
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}