@layer base {
  /* ── Support affordance ───────────────────────────────────────────
     Fixed bottom-left "? Support" mailto link. Naked (no container) —
     a circled "?" glyph next to the word, both in one muted ink tone
     that darkens together on hover. Sits below modals/overlays
     (z-index 2000) so it tucks away while a modal is open. %> */
  .support-link {
    position: fixed;
    bottom: var(--space-4);
    left: var(--space-4);
    z-index: 90;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--ink-faint);
    text-decoration: none;
    font-family: var(--sans);
    font-size: 13px;
    font-weight: var(--weight-semibold);
    line-height: 1;
    transition: color 120ms ease;
  }

  .support-link__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border: 1.5px solid currentColor;
    border-radius: 50%;
    font-size: 12px;
    font-weight: var(--weight-bold);
  }

  .support-link:hover {
    color: var(--ink);
  }
  .support-link:hover .support-link__label {
    text-decoration: underline;
    text-underline-offset: 2px;
  }

  /* Tighten the inset a touch on small screens. */
  @media (max-width: 600px) {
    .support-link {
      bottom: var(--space-3);
      left: var(--space-3);
    }
  }
}