/* Site header: sticky nav, logo cross-fade, mega menus, mobile drawer */

/* Reserves the header's height before the partial-loader injects it, so the
   page doesn't jump once it arrives. */
[data-include="header"]:empty {
  display: block;
  height: 5.125rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  margin-bottom: -5.125rem; /* -82px — hero sits directly under the floating header */
  border-bottom: 1px solid transparent;
  background: transparent;
  backdrop-filter: blur(0px);
  transition: background var(--transition-base), border-color var(--transition-base),
    backdrop-filter var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: var(--border-subtle);
  backdrop-filter: blur(18px);
}

.header-inner {
  height: 5.125rem; /* 82px */
  display: flex;
  align-items: center;
  gap: var(--space-10);
}

/* ---------- Brand ---------- */

.brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex: none;
  height: 34px;
}

.brand__icon {
  height: 34px;
  width: 34px;
  display: block;
}

.brand__wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  color: var(--color-white);
  white-space: nowrap;
  transition: color var(--transition-base);
}

.site-header.is-scrolled .brand__wordmark {
  color: var(--color-ink);
}

/* ---------- Nav ---------- */

.header-panel {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--text-base-alt);
  font-weight: 500;
}

.nav-static,
.nav-link {
  color: var(--color-white);
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.site-header.is-scrolled .nav-static,
.site-header.is-scrolled .nav-link {
  color: #3D2A52;
}

.nav-static {
  cursor: default;
  opacity: 0.85;
}

.nav-link:hover {
  color: #FF7DBF;
}

.site-header.is-scrolled .nav-link:hover {
  color: var(--color-eyebrow);
}

.nav-link.is-current {
  color: #FF7DBF;
  font-weight: 600;
}

.site-header.is-scrolled .nav-link.is-current {
  color: var(--color-eyebrow);
}

.nav-item {
  position: static;
}

.nav-link--menu {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-link--menu svg {
  width: 9px;
  height: 9px;
  opacity: 0.7;
}

.nav-item.is-open .nav-link--menu {
  color: #FF7DBF;
}

.site-header.is-scrolled .nav-item.is-open .nav-link--menu {
  color: var(--color-eyebrow);
}

.header-ctas {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex: none;
}

.header-ctas .btn--outline {
  color: var(--color-white);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.45);
}

.site-header.is-scrolled .header-ctas .btn--outline {
  color: var(--color-ink-secondary);
  border-color: var(--border-pill);
}

.header-ctas .btn--outline:hover {
  border-color: var(--color-pink);
  color: #FF7DBF;
}

.site-header.is-scrolled .header-ctas .btn--outline:hover {
  color: var(--color-ink-secondary);
}

/* ---------- Mega menu ---------- */

.mega-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: 5.125rem;
  background: var(--bg-white);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-menu);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.nav-item.is-open .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.mega-menu__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 1.875rem 2.5rem 2.125rem;
}

.mega-menu__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-5);
}

.mega-menu__head .eyebrow {
  margin: 0;
}

.mega-menu__head a {
  font-size: var(--text-base);
  font-weight: 600;
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

/* ---------- Mobile nav toggle ---------- */

.nav-toggle {
  display: none;
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  margin-left: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: transparent;
  color: var(--color-white);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast),
    background var(--transition-fast);
}

.site-header.is-scrolled .nav-toggle {
  color: var(--color-ink-secondary);
  border-color: var(--border-pill);
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

.nav-toggle .icon-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .header-inner {
    padding-inline: var(--section-padding-x-mobile);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-panel {
    /*
      Positioned absolutely against the sticky header (top: 100%) rather than
      fixed with a bottom inset — the header's backdrop-filter establishes a
      containing block for fixed descendants, which collapses a `bottom: 0`
      inset to the header's own ~82px height instead of the viewport.
    */
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-menu);
    max-height: calc(100vh - 5.125rem);
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .site-header.is-nav-open .header-panel {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .primary-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-3) var(--section-padding-x-mobile) var(--space-5);
  }

  .nav-static,
  .primary-nav > .nav-link,
  .nav-item .nav-link--menu {
    color: var(--color-ink-secondary) !important;
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--border-subtle);
    width: 100%;
    justify-content: space-between;
  }

  .nav-item {
    position: static;
  }

  .mega-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    box-shadow: none;
    border: none;
    background: var(--bg-lilac);
    transition: none;
  }

  .nav-item.is-open .mega-menu {
    display: block;
  }

  .mega-menu__inner {
    padding: var(--space-4) 0 var(--space-4) var(--space-4);
  }

  .mega-menu__grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .mega-menu__head a {
    display: none;
  }

  .header-ctas {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    padding: var(--space-5) var(--section-padding-x-mobile);
  }

  .header-ctas .btn {
    justify-content: center;
  }

  .header-ctas .btn--outline {
    color: var(--color-ink-secondary);
    border-color: var(--border-pill);
  }
}

@media (min-width: 1081px) {
  .header-panel {
    display: flex !important;
  }
}