/* ============================================================
   NAV ENHANCE — mega-menús para Soluciones e Integraciones
   Aditivo: no redefine .site-header, .main-nav, .nav-link, .btn
   ni el comportamiento del panel móvil ya existentes en site.css.
   ============================================================ */

.nav-item { position: relative; }

.nav-item > .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  background: transparent;
  border: 0;
  font: inherit;
}
.nav-item > .nav-link .nav-caret {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  transition: transform .2s ease;
  opacity: .55;
}
.nav-item.is-open > .nav-link .nav-caret { transform: rotate(180deg); }
.nav-item.is-open > .nav-link,
.nav-item > .nav-link:hover,
.nav-item > .nav-link:focus-visible {
  background: var(--surface);
  color: var(--accent);
}

.mega-panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, 6px);
  width: min(860px, 88vw);
  background: var(--paper, #fff);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg, 20px);
  box-shadow: var(--shadow-lg);
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 18px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
  z-index: 60;
}
.mega-panel.mega-single { grid-template-columns: 1fr; width: min(600px, 88vw); }

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

.mega-intro {
  background: linear-gradient(155deg, var(--accent-soft), var(--paper, #fff));
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.mega-eyebrow {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 8px;
}
.mega-intro h3 {
  font-size: 1.12rem;
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
  margin: 0 0 8px;
  color: var(--ink);
}
.mega-intro p {
  font-size: .84rem;
  line-height: 1.55;
  color: var(--muted);
  margin: 0;
}
.mega-intro .mega-go {
  margin-top: 16px;
  font-size: .84rem;
  font-weight: 720;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  align-content: start;
}
.mega-link {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 11px;
  border-radius: 10px;
  transition: background .16s ease;
  color: inherit;
}
.mega-link:hover, .mega-link:focus-visible { background: var(--surface); }
.mega-link .mega-ic {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.mega-link .mega-ic .icon { width: 15px; height: 15px; color: var(--accent); }
.mega-link .mega-t { font-size: .85rem; font-weight: 720; color: var(--ink); margin: 0 0 2px; }
.mega-link .mega-d { font-size: .76rem; color: var(--muted); line-height: 1.4; margin: 0; }

.mega-chip-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.mega-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 650;
  color: var(--ink);
  transition: border-color .16s ease, color .16s ease;
}
.mega-chip:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 900px) {
  .mega-panel { display: none !important; }
}