/* =========================================================
   HEADER + NAVEGACIÓN + MEGA MENÚ
========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: saturate(180%) blur(14px);
  background: rgba(255,255,255,.90);
  border-bottom: 1px solid rgba(219,228,240,.8);
}

.nav-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  gap: 1rem;
}

.brand {
  position: relative;
  z-index: 1003;
  flex: 0 0 auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.main-nav > a,
.nav-link--mega {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  background: none;
  border: 0;
  padding: 0;
  margin: 0;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: color .22s ease, opacity .22s ease;
}

.main-nav > a:hover,
.main-nav > a.is-active,
.nav-link--mega:hover,
.nav-link--mega.is-active,
.nav-item--mega.is-open .nav-link--mega,
.nav-item--mega.is-hover .nav-link--mega {
  color: var(--text);
}

/* QUITAMOS totalmente la rayita decorativa */
.main-nav > a::after,
.nav-link--mega::after {
  display: none !important;
  content: none !important;
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: .4rem;
  margin-left: auto;
  cursor: pointer;
  position: relative;
  z-index: 1003;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  border-radius: 999px;
  transition: transform .22s ease, opacity .22s ease;
}

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

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

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

.nav-item {
  position: relative;
}

.nav-item--mega {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-item--mega::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 18px;
}

.nav-link--mega {
  position: relative;
  z-index: 2;
}

.nav-link__caret {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  transition: transform .28s ease;
}

.nav-item--mega.is-open .nav-link__caret,
.nav-item--mega.is-hover .nav-link__caret,
.nav-item--mega:hover .nav-link__caret {
  transform: rotate(180deg);
}

/* Desktop panel */
.mega-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(10px) scale(.985);
  width: min(820px, calc(100vw - 32px));
  padding: 1.15rem;
  background: rgba(255,255,255,.98);
  border: 1px solid rgba(219,228,240,.95);
  border-radius: 20px;
  box-shadow: 0 24px 70px rgba(15, 23, 42, .14);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform-origin: top center;
  transition:
    opacity .22s ease,
    transform .24s cubic-bezier(.2,.8,.2,1),
    visibility .22s ease;
}

.nav-item--mega.is-hover .mega-menu,
.nav-item--mega.is-open .mega-menu,
.nav-item--mega:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0) scale(1);
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .4rem .9rem;
}

.mega-menu__item {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  padding: .8rem .75rem;
  border-radius: 15px;
  text-decoration: none;
  color: inherit;
  transition: background .2s ease, transform .2s ease;
}

.mega-menu__item:hover {
  background: #faf7fd;
  transform: translateY(-1px);
}

.mega-menu__icon {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #f5ecfb;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  line-height: 1;
}

.mega-menu__content {
  display: flex;
  flex-direction: column;
  gap: .28rem;
  min-width: 0;
}

.mega-menu__content strong {
  display: block;
  margin: 0;
  font-size: 1rem;
  line-height: 1.2;
  font-weight: 800;
  color: var(--text);
}

.mega-menu__content small {
  display: block;
  margin: 0;
  font-size: .92rem;
  line-height: 1.4;
  color: var(--muted);
}

.mega-menu__footer {
  margin-top: .9rem;
  padding-top: .9rem;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.mega-menu__footer-copy {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.mega-menu__footer-copy strong {
  font-size: .98rem;
  color: var(--text);
}

.mega-menu__footer-copy span {
  font-size: .92rem;
  line-height: 1.4;
  color: var(--muted);
}

/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-block;
  }

  .main-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 10px);
    background: rgba(255,255,255,.99);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow);
    padding: .8rem 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    z-index: 1002;
     max-height: calc(100vh - 110px);
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
  
    .main-nav::-webkit-scrollbar {
    width: 6px;
  }

  .main-nav::-webkit-scrollbar-thumb {
    background: rgba(15, 23, 42, .18);
    border-radius: 999px;
  }

  .main-nav::-webkit-scrollbar-track {
    background: transparent;
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav > a,
  .nav-link--mega {
    width: 100%;
    justify-content: space-between;
    padding: .95rem 0;
    border-bottom: 1px solid rgba(219,228,240,.75);
  }

  .main-nav > a.btn {
    justify-content: center;
    margin-top: .8rem;
    border-bottom: 0;
  }

  .nav-item--mega {
    display: block;
    width: 100%;
  }

  .nav-item--mega::after {
    display: none;
  }

  /* En móvil: integrado como acordeón */
  .mega-menu {
    position: static;
    width: 100%;
    margin-top: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none !important;
    display: none;
  }

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

  .mega-menu__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    padding: .15rem 0 .35rem;
  }

  .mega-menu__item {
    padding: .85rem 0 .85rem .15rem;
    border-radius: 0;
    border-bottom: 1px solid rgba(219,228,240,.65);
    background: transparent;
    transform: none;
  }

  .mega-menu__item:hover {
    background: transparent;
    transform: none;
  }

  .mega-menu__icon {
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    font-size: 1rem;
  }

  .mega-menu__content strong {
    font-size: .98rem;
  }

  .mega-menu__content small {
    font-size: .88rem;
  }

  .mega-menu__footer {
    display: none;
  }
}