/* Shared site chrome — header & navigation */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
  background: var(--color-accent-bg);
  border-bottom: 1px solid rgba(var(--color-blue-rgb), 0.08);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: var(--color-accent);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
  border-bottom-color: transparent;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  gap: 1.5rem;
}

.site-header__logo img {
  height: 48px;
  width: auto;
  transition: filter var(--transition);
}

.site-header:not(.scrolled) .site-header__logo img {
  filter: none;
}

.site-header:not(.scrolled) .site-nav__link {
  color: var(--color-navy);
}

.site-header:not(.scrolled) .site-nav__link:hover {
  color: var(--color-blue);
}

.site-header:not(.scrolled) .nav-toggle span {
  background: var(--color-navy);
}

.site-header.scrolled .site-header__logo img {
  filter: brightness(0) invert(1);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.site-nav__item {
  position: relative;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-navy);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition);
}

.site-nav__link.is-active {
  color: var(--color-blue);
  font-weight: 700;
}

.site-header.scrolled .site-nav__link {
  color: var(--color-white);
}

.site-header.scrolled .site-nav__link.is-active {
  color: var(--color-green);
}

.site-header.scrolled .site-nav__link:not(.is-active):hover {
  color: var(--color-white);
  opacity: 0.85;
}

.site-header.scrolled .site-nav__link.is-active:hover {
  color: var(--color-green);
}

.site-header:not(.scrolled) .site-nav__link:hover {
  color: var(--color-blue);
}

.site-nav__chevron {
  font-size: 0.55rem;
  transition: transform var(--transition);
}

.site-nav__item--dropdown:hover > .site-nav__item-head .site-nav__chevron--in-link,
.site-nav__item--dropdown.is-open > .site-nav__item-head .site-nav__chevron--in-link {
  transform: rotate(180deg);
}

.site-nav__item-head {
  display: contents;
}

.site-nav__submenu-toggle {
  display: none;
}

.site-nav__dropdown {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 0;
  min-width: 240px;
  background: var(--color-white);
  border-radius: 10px;
  box-shadow: 0 12px 40px rgba(11, 31, 58, 0.14);
  padding: 0.5rem 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 10;
}

.site-nav__item--dropdown:hover > .site-nav__dropdown,
.site-nav__item--dropdown:focus-within > .site-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav__dropdown a {
  display: block;
  padding: 0.6rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-navy);
  text-transform: none;
  letter-spacing: 0;
  transition: background var(--transition), color var(--transition);
}

.site-nav__dropdown a:hover {
  background: rgba(var(--color-blue-rgb), 0.06);
  color: var(--color-blue);
}

.site-nav__dropdown .site-nav__item--dropdown {
  position: relative;
  width: 100%;
}

.site-nav__dropdown a.site-nav__dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 1.25rem;
}

.site-nav__dropdown a.is-active,
.site-nav__dropdown-trigger.is-active {
  color: var(--color-green);
  font-weight: 600;
}

.site-nav__dropdown a.is-active:hover,
.site-nav__dropdown-trigger.is-active:hover {
  color: var(--color-green);
}

.site-nav__item--mobile-view-all {
  display: none;
}

.site-nav__chevron--nested {
  font-size: 0.5rem;
  flex-shrink: 0;
  margin-left: auto;
  transform: none;
}

.site-nav__dropdown .site-nav__item--dropdown:hover > .site-nav__item-head .site-nav__chevron--in-link.site-nav__chevron--nested,
.site-nav__dropdown .site-nav__item--dropdown:focus-within > .site-nav__item-head .site-nav__chevron--in-link.site-nav__chevron--nested,
.site-nav__dropdown .site-nav__item--dropdown.is-open > .site-nav__item-head .site-nav__chevron--in-link.site-nav__chevron--nested {
  transform: translateX(2px);
}

.site-nav__dropdown .site-nav__dropdown {
  top: 0;
  left: calc(100% + 0.35rem);
  min-width: 220px;
}

.site-nav__dropdown .site-nav__item--dropdown:hover > .site-nav__dropdown,
.site-nav__dropdown .site-nav__item--dropdown:focus-within > .site-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-header.scrolled .site-nav__dropdown a {
  color: var(--color-navy);
}

.site-header.scrolled .site-nav__dropdown a:hover {
  color: var(--color-blue);
}

.site-header.scrolled .site-nav__dropdown a.is-active,
.site-header.scrolled .site-nav__dropdown-trigger.is-active {
  color: var(--color-green);
}

.site-header.scrolled .site-nav__dropdown a.is-active:hover,
.site-header.scrolled .site-nav__dropdown-trigger.is-active:hover {
  color: var(--color-green);
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.35rem;
  border-radius: 999px;
  background: var(--color-blue);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}

.site-nav__cta:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-navy);
  transition: transform 0.25s ease, opacity 0.25s ease, background var(--transition);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-header.scrolled .nav-toggle span {
  background: var(--color-white);
}

.site-header.scrolled .nav-toggle.is-open span {
  background: var(--color-navy);
}

@media (max-width: 1024px) {
  .site-header.scrolled {
    background: var(--color-accent);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
    border-bottom-color: transparent;
  }

  .site-header.scrolled .site-header__logo img {
    filter: brightness(0) invert(1);
  }

  .site-header.scrolled .nav-toggle span {
    background: var(--color-white);
  }

  /* Full-viewport mobile menu — no light header gap above overlay */
  .site-nav {
    display: none;
    position: fixed;
    inset: 0;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100dvh;
    background: var(--color-accent);
    padding: calc(var(--site-header-height) + 0.5rem) 1.5rem 1.5rem;
    overflow-y: auto;
    z-index: 999;
  }

  .site-nav.open {
    display: block;
  }

  /* Match header to dark nav; light close (X) on open */
  body.nav-open .site-header {
    background: var(--color-accent);
    border-bottom-color: transparent;
    box-shadow: none;
  }

  body.nav-open .site-header__logo img {
    filter: brightness(0) invert(1);
  }

  body.nav-open .nav-toggle span,
  body.nav-open .site-header:not(.scrolled) .nav-toggle span,
  body.nav-open .site-header.scrolled .nav-toggle span,
  body.nav-open .site-header.scrolled .nav-toggle.is-open span {
    background: var(--color-white);
  }

  .site-header .site-nav__link,
  .site-header.scrolled .site-nav__link,
  .site-header:not(.scrolled) .site-nav__link {
    color: var(--color-white);
  }

  .site-header .site-nav__link.is-active {
    color: var(--color-green);
  }

  .site-header .site-nav__link:hover,
  .site-header .site-nav__link:focus-visible,
  .site-header:not(.scrolled) .site-nav__link:hover,
  .site-header.scrolled .site-nav__link:not(.is-active):hover,
  .site-header.scrolled .site-nav__link.is-active:hover {
    color: var(--color-green);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .site-nav__link {
    width: 100%;
    justify-content: space-between;
    padding: 0.9rem 0;
    color: var(--color-white);
  }

  .site-nav__item-head {
    display: flex;
    align-items: stretch;
    width: 100%;
  }

  .site-nav__item-head--nested {
    align-items: center;
  }

  .site-nav__item-head--nested .site-nav__dropdown-trigger {
    padding-left: 1rem;
  }

  .site-nav__link--trigger,
  .site-nav__dropdown-trigger {
    flex: 1;
    min-width: 0;
    width: auto;
    justify-content: flex-start;
    padding-top: 0.9rem;
    padding-bottom: 0.9rem;
    padding-right: 0.35rem;
  }

  .site-nav__chevron--in-link {
    display: none;
  }

  .site-nav__submenu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 2.75rem;
    align-self: stretch;
    padding: 0;
    border: 0;
    background: transparent;
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
    transition: color var(--transition), background var(--transition);
  }

  .site-nav__submenu-toggle:hover,
  .site-nav__submenu-toggle:focus-visible {
    color: var(--color-green);
    background: rgba(255, 255, 255, 0.08);
    outline: none;
  }

  .site-nav__submenu-toggle--nested {
    width: 2.5rem;
    height: 2.5rem;
    align-self: center;
  }

  .site-nav__submenu-toggle .site-nav__chevron,
  .site-nav__submenu-toggle .site-nav__chevron--nested {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    font-size: 0.65rem;
  }

  .site-nav__submenu-toggle--nested .site-nav__chevron--nested {
    width: 100%;
    height: 100%;
    margin: 0;
  }

  .site-nav__item--dropdown.is-open > .site-nav__item-head .site-nav__submenu-toggle .site-nav__chevron {
    transform: rotate(180deg);
  }

  .site-nav__item--dropdown.is-open > .site-nav__item-head .site-nav__submenu-toggle--nested .site-nav__chevron--nested {
    transform: rotate(90deg);
  }

  .site-nav__dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: rgba(255, 255, 255, 0.06);
    box-shadow: none;
    border-radius: 8px;
    margin-bottom: 0.75rem;
    padding: 0.25rem 0;
    display: none;
  }

  .site-nav__item--dropdown.is-open > .site-nav__dropdown {
    display: block;
  }

  .site-nav__dropdown a {
    color: rgba(255, 255, 255, 0.85);
    padding: 0.55rem 1rem;
  }

  .site-nav__dropdown a:hover,
  .site-nav__dropdown a:focus-visible {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-green);
  }

  .site-nav__dropdown a.is-active,
  .site-nav__dropdown-trigger.is-active {
    color: var(--color-green);
    font-weight: 600;
  }

  .site-nav__item--mobile-view-all {
    display: list-item;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    margin-top: 0.25rem;
    padding-top: 0.25rem;
  }

  .site-nav__item--mobile-view-all a {
    font-weight: 600;
    color: var(--color-green);
  }

  .site-nav__dropdown .site-nav__dropdown {
    margin: 0.35rem 0 0.5rem 0.75rem;
    padding-left: 0.5rem;
    border-left: 1px solid rgba(255, 255, 255, 0.12);
  }

  .site-nav__item--cta {
    border-bottom: none;
  }

  .site-nav__cta {
    margin-top: 1rem;
    width: 100%;
    padding: 0.9rem 1.25rem;
  }

  .nav-toggle {
    display: flex;
    position: relative;
    z-index: 1001;
  }
}