/* secondaryNavMobile.css
   Styles for the mobile-only collapsible secondary nav.
   Only active when the page has JS (`html.js-secnav`) and on mobile widths.
*/

.secnav__toggle {
  display: none; /* progressive enhancement: hidden without JS/mobile */
}

/* When JS is present and on mobile, show the toggle and enable collapse behavior */
@media (max-width: 812px) {
  html.js-secnav nav[data-secondary-nav] {
    display: block;
  }

  html.js-secnav nav[data-secondary-nav] .secnav__toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border: 1px solid transparent;
    background: transparent;
    color: var(--text);
    font: inherit;
    border-radius: var(--radius-2);
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  }

  /* alignment removed */

  html.js-secnav nav[data-secondary-nav] .secnav__toggle:focus-visible {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
  }

  /* Hide the list when collapsed using the hidden attribute (set by JS) */
  html.js-secnav nav[data-secondary-nav] ul[hidden] {
    display: none;
  }

  /* When open, show the list as normal flow beneath the toggle */
  html.js-secnav nav[data-secondary-nav].is-open ul {
    display: block;
  }

  /* Give menu links comfortable tap targets */
  html.js-secnav nav[data-secondary-nav] ul li a {
    display: inline-flex;
    padding: calc(var(--space-1)) var(--space-2);
    border-radius: var(--radius-2);
  }

  /* Subtle transition for appearance when reduced motion is not requested */
  @media (prefers-reduced-motion: no-preference) {
    html.js-secnav nav[data-secondary-nav] ul {
      transition:
        opacity 180ms ease,
        transform 160ms ease;
      transform-origin: top left;
    }

    html.js-secnav nav[data-secondary-nav] ul[hidden] {
      opacity: 0;
      transform: translateY(-6px);
    }

    html.js-secnav nav[data-secondary-nav].is-open ul {
      opacity: 1;
      transform: translateY(0);
    }
  }
}