/* BITSMART v2 — cabecera expandida (global) */

.site-header--expanded {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.site-header--expanded .header-nav {
  display: none;
  align-items: center;
  gap: clamp(0.2rem, 0.9vw, 0.85rem);
  margin-inline: auto;
}

.logo--official {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo--official .logo-official-color {
  height: clamp(32px, 3vw, 40px);
  width: auto;
  max-width: min(196px, 37vw);
}

.logo-official-white {
  display: none;
}

.header-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.32rem 0.1rem;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-blue);
  cursor: pointer;
  transition: color 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}

.header-nav-link:hover,
.header-nav-link[aria-current="page"] {
  color: var(--color-red);
}

.header-nav-item {
  position: relative;
}

.header-nav-trigger::after {
  content: "";
  flex-shrink: 0;
  width: 0.45rem;
  height: 0.45rem;
  margin: 0;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-1.6px) rotate(45deg);
  transform-origin: 50% 50%;
  transition: transform 0.3s var(--ease);
}

.site-header.is-scrolled .header-nav-trigger::after {
  transform: translateY(-2px) rotate(45deg);
}

.header-nav-item.is-open .header-nav-trigger::after {
  transform: translateY(4px) rotate(-135deg);
}

.site-header.is-scrolled .header-nav-item.is-open .header-nav-trigger::after {
  transform: translateY(5px) rotate(-135deg);
}

@media (min-width: 1200px) {
  .header-nav-item.is-open .header-nav-trigger::after {
    transform: translateY(12.1px) rotate(-135deg);
  }

  .site-header.is-scrolled .header-nav-item.is-open .header-nav-trigger::after {
    transform: translateY(11.55px) rotate(-135deg);
  }
}

.header-nav-dropdown {
  position: absolute;
  top: calc(100% + 0.55rem);
  left: 50%;
  z-index: 120;
  min-width: 15.5rem;
  margin: 0;
  padding: 0.45rem 0;
  list-style: none;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bitsmart-white);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 6px);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease), visibility 0.28s;
}

/* Puente invisible sobre el hueco trigger-submenu: el hover no se pierde al bajar. */
.header-nav-dropdown::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 100%;
  height: calc(0.55rem + 2px);
}

.header-nav-item.is-open .header-nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.header-nav-dropdown a {
  display: block;
  padding: 0.55rem 1rem;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: var(--color-muted);
}

.header-nav-dropdown a:hover {
  color: var(--color-blue);
  background: var(--color-bg-deep);
}

.header-nav-dropdown li {
  margin: 0;
}

.header-nav-dropdown a[aria-current="page"] {
  color: var(--color-red);
}

/* Servicios megamenu (desktop) */
.header-nav-item--megamenu {
  position: static;
}

@media (min-width: 1024px) {
  .site-header--expanded .header-nav {
    position: relative;
  }

  .header-nav-item--megamenu {
    position: static;
  }

}

.header-nav-megamenu {
  position: absolute;
  top: calc(100% + 0.55rem);
  left: 50%;
  z-index: 130;
  width: min(56rem, calc(100vw - 2 * var(--page-pad)));
  margin: 0;
  padding: 1.85rem 2.35rem 1.75rem;
  text-align: left;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bitsmart-white);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease), visibility 0.28s;
}

.header-nav-item--megamenu.is-open .header-nav-megamenu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.header-nav-megamenu__grid {
  display: grid;
  gap: 0.85rem 1.1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 1024px) {
  .header-nav-megamenu__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }
}

.header-nav-megamenu__col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.nav-mega-group__title {
  display: block;
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.25;
  color: var(--color-blue);
  text-transform: none;
}

.nav-mega-group__title:hover {
  color: var(--color-red);
}

.nav-mega-group__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-mega-group__list a {
  display: block;
  padding: 0.28rem 0;
  font-size: 0.76rem;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0;
  text-transform: none;
  color: var(--color-muted);
}

.nav-mega-group__list a:hover {
  color: var(--color-blue);
}

.header-nav-megamenu__foot {
  margin: 0.65rem 0 0;
  padding-top: 0.55rem;
  border-top: 1px solid var(--border-subtle);
}

.header-nav-megamenu__foot .link-arrow {
  font-size: 0.72rem;
}

/* Servicios: lista simple en el overlay móvil */
.site-nav .nav-services-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav .nav-services-list a {
  display: block;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--color-bg-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.35;
  color: var(--color-blue);
}

.site-nav .nav-services-list a:hover,
.site-nav .nav-services-list a[aria-current="page"] {
  color: var(--color-red);
}

/* Servicios accordion (mobile overlay — light site-nav panel) */
.site-nav .nav-services-catalog {
  margin: 0 0 0.5rem;
  font-size: 0.82rem;
}

.site-nav .nav-services-catalog a {
  color: var(--color-red);
  font-weight: 600;
}

.site-nav .nav-services-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  opacity: 1;
  visibility: visible;
  transform: none;
}

.site-nav .nav-acc {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--color-bg-deep);
  opacity: 1;
  visibility: visible;
}

.site-nav .nav-acc__summary {
  padding: 0.55rem 0.65rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.35;
  color: var(--color-blue);
  cursor: pointer;
  list-style: none;
  opacity: 1;
  visibility: visible;
}

.site-nav .nav-acc__summary::-webkit-details-marker {
  display: none;
}

.site-nav .nav-acc__summary::after {
  content: "+";
  float: right;
  font-weight: 600;
  color: var(--color-muted);
}

.site-nav .nav-acc[open] .nav-acc__summary::after {
  content: "−";
}

.site-nav .nav-acc__list {
  margin: 0;
  padding: 0 0.65rem 0.55rem;
  list-style: none;
}

.site-nav .nav-acc__list a {
  display: block;
  padding: 0.32rem 0;
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0;
  color: var(--color-muted);
  opacity: 1;
  visibility: visible;
}

.site-nav .nav-acc__list a:hover {
  color: var(--color-blue);
}

.site-nav .nav-acc__main {
  font-weight: 700;
  color: var(--color-blue) !important;
}

.header-nav-cta.btn-red {
  min-height: 32px;
  padding: 0.35rem 0.72rem;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  line-height: 1.1;
}

@media (min-width: 1024px) {
  .site-header--expanded {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1rem;
    transition: background 0.45s var(--ease), backdrop-filter 0.45s var(--ease), border-color 0.45s var(--ease);
  }

  .site-header--expanded.is-scrolled:not(.is-hero-immersive) {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(16px);
  }

  .site-header--expanded .header-nav {
    display: flex;
    justify-content: center;
  }

  .site-header--expanded .header-actions {
    display: flex;
    align-items: center;
    gap: 0.35rem;
  }

  .site-header--expanded .header-nav-toggle {
    display: inline-flex;
    color: var(--color-blue);
  }
}

@media (max-width: 1023px) {
  .site-header--expanded .header-nav {
    display: none;
  }

  .site-header--expanded .header-nav-cta {
    display: none;
  }
}