/* Mobile header nav (≤767px) — requires mobile.css linked in HTML */

@media (max-width: 767px) {
  /* Solid header bar whenever the hamburger drawer is open (overrides hero-transparent tokens). */
  :root.is-mobile-nav-open,
  :root.is-mobile-nav-open.is-hero-snapped,
  :root.is-mobile-nav-open.is-hero-snapped:not(.is-submenu-open),
  :root.is-mobile-nav-open:not(.is-scrolled),
  :root.is-mobile-nav-open.is-scrolled {
    --header-bg: var(--header-bg-scrolled);
  }

  .page-section--hero {
    margin-top: 0;
  }

  .site-header__menu-toggle {
    display: flex;
    width: 40px;
    height: 40px;
    min-height: 40px;
    position: relative;
    z-index: 2;
    touch-action: manipulation;
  }

  .site-header__logo {
    position: relative;
    z-index: 2;
    touch-action: manipulation;
  }

  .site-header__inner {
    pointer-events: auto;
    position: relative;
    z-index: 1;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: calc(var(--header-z-index) + 1);
    margin-left: 0;
    padding: calc(16px * var(--hero-coord-scale)) var(--layout-margin-inline-mobile);
    background-color: var(--header-bg-scrolled);
  }

  html.is-mobile-nav-open .site-nav {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: calc(20px * var(--hero-coord-scale));
  }

  .site-nav__item--has-dropdown {
    padding-bottom: 0;
    margin-bottom: 0;
    width: 100%;
  }

  .site-nav__toggle,
  .site-nav__link {
    width: 100%;
    justify-content: space-between;
  }

  .site-nav__dropdown {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: calc(16px * var(--hero-coord-scale));
    list-style: none;
    width: 100%;
    margin: calc(16px * var(--hero-coord-scale)) 0 0;
    padding: 0;
    padding-inline-start: calc(16px * var(--hero-coord-scale));
  }

  .site-nav__dropdown[hidden] {
    display: none;
  }

  .site-header__submenu {
    display: none;
  }

  .site-header__submenu-inner {
    padding-inline: 0;
    padding-bottom: calc(12px * var(--hero-coord-scale));
  }

  .site-header__submenu-list {
    left: 0;
    gap: calc(12px * var(--hero-coord-scale));
  }

  .header-canvas {
    overflow: visible;
    position: relative;
    z-index: 1;
  }

  /* Fix 3: position:fixed so header stays visible when body has overflow-x:hidden
     (overflow-x:hidden breaks position:sticky in all browsers). */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
  }
}