/*
 * Reusable disclosure navigation containing standard HTML links.
 * JavaScript controls the hidden state and aria-expanded attribute.
 */

.dropdown-links {
  position: relative;
  display: block;
  width: min(600px, calc(100vw - 2rem));
}

.dropdown-links--narrow {
  width: min(400px, calc(100vw - 2rem));
}

.dropdown-links__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  min-height: 44px;
  padding: 0.5rem 0.875rem;
  border: 2px solid #6c757d;
  border-radius: 0.375rem;
  color: #fff;
  background-color: #6c757d;
  font: inherit;
  font-weight: 600;
  line-height: 1.25;
  cursor: pointer;
}

.dropdown-links__toggle::after {
  width: 0;
  height: 0;
  border-top: 0.4rem solid currentColor;
  border-right: 0.35rem solid transparent;
  border-left: 0.35rem solid transparent;
  content: "";
}

.dropdown-links__toggle:hover {
  border-color: #565e64;
  background-color: #5c636a;
}

.dropdown-links__toggle[aria-expanded="true"]::after {
  transform: rotate(180deg);
}

.dropdown-links__toggle:focus-visible,
.dropdown-links__link:focus-visible {
  outline: 3px solid #0a58ca;
  outline-offset: 3px;
}

.dropdown-links__list {
  position: absolute;
  z-index: 1000;
  top: calc(100% + 0.25rem);
  left: 0;
  width: 100%;
  max-height: min(70vh, 32rem);
  margin: 0;
  padding: 0.375rem;
  overflow-y: auto;
  border: 1px solid #6c757d;
  border-radius: 0.375rem;
  background-color: #fff;
  box-shadow: 0 0.5rem 1rem rgb(0 0 0 / 18%);
  list-style: none;
}

.dropdown-links__list[hidden] {
  display: none;
}

.dropdown-links__item + .dropdown-links__item {
  margin-top: 0.125rem;
}

.dropdown-links__heading {
  margin: 0.75rem 0 0.25rem;
  padding: 0.5rem 0.75rem;
  border-left: 4px solid #6c757d;
  color: #212529;
  background-color: #e9ecef;
  font-size: 0.9375rem;
  font-weight: 700;
}

.dropdown-links__heading:first-child {
  margin-top: 0;
}

.dropdown-links__link {
  display: block;
  padding: 0.625rem 0.75rem;
  border-radius: 0.25rem;
  color: #084298;
  line-height: 1.35;
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.15em;
}

.dropdown-links__link:hover {
  color: #052c65;
  background-color: #e9ecef;
}

.dropdown-links__note {
  padding: 0.625rem 0.75rem;
  color: #495057;
  font-style: italic;
}

@media (forced-colors: active) {
  .dropdown-links__toggle,
  .dropdown-links__list {
    border-color: CanvasText;
  }

  .dropdown-links__toggle:focus-visible,
  .dropdown-links__link:focus-visible {
    outline-color: Highlight;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .dropdown-links__toggle::after {
    transition: transform 120ms ease-in-out;
  }
}