/* Desktop header navigation — refined hover (mobile unchanged in mobile-menu.css). */
@media (min-width: 1101px) and (hover: hover) and (pointer: fine) {
  .site-header nav {
    gap: 0.125rem;
    padding: 0.25rem;
    background: transparent;
    border-color: transparent;
  }

  .site-header nav a {
    position: relative;
    isolation: isolate;
    color: #b2bdd1;
    background: transparent !important;
    transition: color 0.28s ease;
  }

  .site-header nav a::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 0.625rem;
    border: 1px solid transparent;
    background: linear-gradient(
      165deg,
      rgba(20, 38, 72, 0.55) 0%,
      rgba(14, 26, 52, 0.35) 100%
    );
    box-shadow: 0 0 0 rgba(59, 130, 246, 0);
    opacity: 0;
    transform: scale(0.94);
    transition:
      opacity 0.28s ease,
      transform 0.34s cubic-bezier(0.22, 1, 0.36, 1),
      border-color 0.28s ease,
      box-shadow 0.34s ease;
    z-index: -1;
  }

  .site-header nav a:hover,
  .site-header nav a:focus-visible {
    color: #f6f9ff;
  }

  .site-header nav a:hover::before,
  .site-header nav a:focus-visible::before {
    opacity: 1;
    transform: scale(1);
    border-color: rgba(118, 181, 255, 0.38);
    box-shadow:
      0 6px 22px rgba(23, 72, 168, 0.22),
      inset 0 1px 0 rgba(255, 255, 255, 0.06);
  }

  .site-header .header-cta {
    position: relative;
    overflow: hidden;
    transition:
      border-color 0.28s ease,
      box-shadow 0.32s ease,
      transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
      background 0.28s ease;
  }

  .site-header .header-cta::before {
    content: "";
    position: absolute;
    inset: -1px;
    background: linear-gradient(
      105deg,
      transparent 0%,
      rgba(255, 255, 255, 0.14) 45%,
      transparent 70%
    );
    transform: translateX(-130%);
    transition: transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
  }

  .site-header .header-cta:hover,
  .site-header .header-cta:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(140, 200, 255, 0.72);
    background: #2568c9;
    box-shadow:
      0 10px 36px rgba(18, 76, 192, 0.38),
      inset 0 1px 0 rgba(255, 255, 255, 0.12);
  }

  .site-header .header-cta:hover::before,
  .site-header .header-cta:focus-visible::before {
    transform: translateX(130%);
  }

  .site-header .header-cta.is-current {
    pointer-events: none;
    cursor: default;
    border-color: rgba(140, 200, 255, 0.62);
    box-shadow:
      0 6px 28px rgba(18, 76, 192, 0.32),
      inset 0 1px 0 rgba(255, 255, 255, 0.1);
  }

  .site-header .header-cta.is-current:hover,
  .site-header .header-cta.is-current:focus-visible {
    transform: none;
  }
}

@media (min-width: 1101px) and (prefers-reduced-motion: reduce) {
  .site-header nav a,
  .site-header nav a::before,
  .site-header .header-cta,
  .site-header .header-cta::before {
    transition: none !important;
  }

  .site-header .header-cta:hover,
  .site-header .header-cta:focus-visible {
    transform: none;
  }
}