.costasol-site-header {
  position: sticky;
  z-index: 999;
  top: 0;
  border-bottom: 1px solid rgba(217, 226, 231, 0.9);
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 5px 20px rgba(12, 44, 72, 0.045);
  backdrop-filter: blur(14px);
}

/*
 * La cabecera sticky conserva exactamente la geometría del estado inicial.
 * En escritorio autenticado se sitúa bajo la barra de administración.
 */
@media (min-width: 941px) {
  .costasol-site-header {
    background: var(--costasol-white);
    backdrop-filter: none;
  }

  body.admin-bar .costasol-site-header {
    top: 32px;
  }
}

.costasol-site-header__inner {
  display: flex;
  min-height: 136px;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.costasol-site-header__brand {
  flex: 0 0 auto;
}

.costasol-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.costasol-brand--header {
  width: 250px;
  min-height: 126px;
  padding: 3px;
}

.costasol-brand--header .costasol-brand__image {
  width: 235px;
  height: 120px;
  object-fit: contain;
  object-position: center;
}

.costasol-site-header__navigation {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  gap: 1.25rem;
}

.costasol-primary-nav__menu,
.costasol-primary-nav__menu ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

.costasol-primary-nav__menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.costasol-primary-nav__menu > li {
  position: relative;
  display: flex;
  align-items: center;
}

.costasol-primary-nav__menu > li > a {
  position: relative;
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  color: var(--costasol-navy-deep);
  font-size: 1.0625rem;
  font-weight: 720;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}

.costasol-primary-nav__menu > li > a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  background: var(--costasol-turquoise);
  content: "";
  opacity: 0;
  transform: scaleX(0.55);
  transition: opacity var(--costasol-transition), transform var(--costasol-transition);
}

.costasol-primary-nav__menu > li:hover > a,
.costasol-primary-nav__menu > li:focus-within > a,
.costasol-primary-nav__menu > .current-menu-item > a,
.costasol-primary-nav__menu > .current-menu-ancestor > a {
  color: var(--costasol-turquoise);
}

.costasol-primary-nav__menu > li:hover > a::after,
.costasol-primary-nav__menu > li:focus-within > a::after,
.costasol-primary-nav__menu > .current-menu-item > a::after,
.costasol-primary-nav__menu > .current-menu-ancestor > a::after {
  opacity: 1;
  transform: scaleX(1);
}

.costasol-submenu-toggle {
  display: inline-flex;
  width: 30px;
  height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 0;
  color: var(--costasol-navy-deep);
  background: transparent;
  box-shadow: none;
  cursor: pointer;
}

.costasol-submenu-toggle span {
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform var(--costasol-transition);
}

.costasol-submenu-toggle[aria-expanded="true"] span {
  transform: translateY(2px) rotate(225deg);
}

.costasol-primary-nav .sub-menu {
  position: absolute;
  z-index: 20;
  top: calc(100% + 8px);
  left: -1.25rem;
  display: block;
  width: min(430px, calc(100vw - 2 * var(--costasol-gutter)));
  padding: 0.65rem;
  border: 1px solid var(--costasol-line);
  border-radius: 12px;
  background: var(--costasol-white);
  box-shadow: var(--costasol-shadow-menu);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity var(--costasol-transition), transform var(--costasol-transition);
}

.costasol-primary-nav li:hover > .sub-menu,
.costasol-primary-nav li:focus-within > .sub-menu,
.costasol-primary-nav li[data-submenu-open="true"] > .sub-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.costasol-primary-nav .sub-menu a {
  display: block;
  padding: 0.8rem 0.9rem;
  border-radius: 8px;
  color: var(--costasol-navy-deep);
  font-size: 0.96rem;
  font-weight: 680;
  line-height: 1.4;
  text-decoration: none;
}

.costasol-primary-nav .sub-menu > li.menu-item-has-children {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 42px;
  align-items: center;
}

.costasol-primary-nav .sub-menu > li.menu-item-has-children > .costasol-submenu-toggle {
  width: 42px;
  min-height: 44px;
}

.costasol-primary-nav .sub-menu .sub-menu {
  top: -0.65rem;
  left: calc(100% + 0.5rem);
}

.costasol-primary-nav .sub-menu a:hover,
.costasol-primary-nav .sub-menu a:focus-visible,
.costasol-primary-nav .sub-menu .current-menu-item > a {
  color: var(--costasol-navy-deep);
  background: var(--costasol-turquoise-soft);
}

.costasol-button--campus {
  min-height: 56px;
  padding-inline: 1.45rem;
  white-space: nowrap;
}

.costasol-menu-toggle {
  display: none;
  width: 47px;
  height: 47px;
  flex: 0 0 auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  border: 1px solid var(--costasol-line);
  border-radius: 8px;
  color: var(--costasol-navy-deep);
  background: var(--costasol-white);
  box-shadow: none;
  cursor: pointer;
}

.costasol-menu-toggle__line {
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform var(--costasol-transition), opacity var(--costasol-transition);
}

.costasol-menu-toggle[aria-expanded="true"] .costasol-menu-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.costasol-menu-toggle[aria-expanded="true"] .costasol-menu-toggle__line:nth-child(2) {
  opacity: 0;
}

.costasol-menu-toggle[aria-expanded="true"] .costasol-menu-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1250px) and (min-width: 941px) {
  .costasol-site-header__inner {
    gap: 1rem;
  }

  .costasol-brand--header {
    width: 210px;
  }

  .costasol-brand--header .costasol-brand__image {
    width: 200px;
  }

  .costasol-site-header__navigation,
  .costasol-primary-nav__menu {
    gap: 0.875rem;
  }

  .costasol-primary-nav__menu > li > a {
    font-size: 0.8125rem;
  }

  .costasol-button--campus {
    min-height: 52px;
    padding-inline: 1rem;
    font-size: 0.875rem;
  }
}

@media (max-width: 940px) {
  .costasol-site-header__inner {
    position: relative;
    min-height: 108px;
    gap: 1rem;
  }

  .costasol-brand--header {
    width: 176px;
    min-height: 96px;
    padding: 2px;
  }

  .costasol-brand--header .costasol-brand__image {
    width: 170px;
    height: 94px;
  }

  .costasol-menu-toggle {
    display: inline-flex;
  }

  .costasol-site-header__navigation {
    position: absolute;
    z-index: 30;
    top: calc(100% + 1px);
    right: var(--costasol-gutter);
    left: var(--costasol-gutter);
    display: none;
    max-height: calc(100vh - 120px);
    align-items: stretch;
    padding: 1rem;
    border: 1px solid var(--costasol-line);
    border-radius: 0 0 14px 14px;
    background: var(--costasol-white);
    box-shadow: var(--costasol-shadow-menu);
    overflow-y: auto;
  }

  .costasol-site-header__navigation[data-open="true"] {
    display: flex;
    flex-direction: column;
  }

  .costasol-primary-nav__menu {
    display: block;
  }

  .costasol-primary-nav__menu > li {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 48px;
    border-bottom: 1px solid var(--costasol-line);
  }

  .costasol-primary-nav__menu > li:last-child {
    border-bottom: 0;
  }

  .costasol-primary-nav__menu > li > a {
    min-height: 54px;
    font-size: 1rem;
    white-space: normal;
  }

  .costasol-primary-nav__menu > li > a::after {
    display: none;
  }

  .costasol-submenu-toggle {
    width: 48px;
    height: 54px;
  }

  .costasol-primary-nav .sub-menu {
    position: static;
    grid-column: 1 / -1;
    display: none;
    width: 100%;
    padding: 0 0 0.75rem 0.75rem;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .costasol-primary-nav li[data-submenu-open="true"] > .sub-menu {
    display: block;
  }

  .costasol-primary-nav .sub-menu a {
    padding: 0.75rem;
  }

  .costasol-primary-nav .sub-menu > li.menu-item-has-children {
    grid-template-columns: minmax(0, 1fr) 48px;
  }

  .costasol-primary-nav .sub-menu > li.menu-item-has-children > .costasol-submenu-toggle {
    width: 48px;
    height: 52px;
  }

  .costasol-primary-nav .sub-menu .sub-menu {
    position: static;
    grid-column: 1 / -1;
    width: 100%;
    padding-left: 0.75rem;
  }

  .costasol-button--campus {
    width: 100%;
    margin-top: 0.25rem;
  }
}

@media (max-width: 420px) {
  .costasol-brand--header {
    width: 158px;
  }

  .costasol-brand--header .costasol-brand__image {
    width: 154px;
  }
}