/* iOS 14 / legacy WebKit fallback for unsupported mask-composite borders. */
@supports not (width: 1cqw) {
  .author-signature__border {
    padding: 0;
    border: 1px solid #c444ee;
    background: transparent;
    box-shadow:
      0 0 3px rgb(75 39 246 / 72%),
      0 0 7px rgb(252 107 230 / 48%);
    -webkit-mask: none;
    mask: none;
  }

  .author-signature__tail::after {
    inset: -1px;
    padding: 0;
    border: 1px solid #c444ee;
    background: transparent;
    -webkit-mask: none;
    mask: none;
  }
}