/* Mp Asociados — Dropdown del nav principal (Recursos) */

.nav__group {
  position: relative;
  display: inline-block;
}

/* Trigger del dropdown — comportamiento idéntico a un link normal del nav */
.nav__group > .nav__trigger {
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  color: inherit;
  cursor: pointer;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  letter-spacing: inherit;
}
.nav__group > .nav__trigger::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  margin-left: 4px;
  margin-top: 2px;
  transition: transform 200ms ease;
}
.nav__group[aria-expanded="true"] > .nav__trigger::after { transform: rotate(180deg); }

/* Submenú */
.nav__submenu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-top: 3px solid var(--mp-gold);
  border-radius: 4px;
  box-shadow: 0 18px 40px -10px rgba(0, 0, 0, 0.18);
  min-width: 280px;
  padding: 12px 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 200ms ease, transform 200ms ease, visibility 200ms;
  z-index: 200;
}
.nav__group:hover > .nav__submenu,
.nav__group:focus-within > .nav__submenu,
.nav__group[aria-expanded="true"] > .nav__submenu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav__submenu a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 18px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--mp-blue-900);
  text-decoration: none;
  transition: background 150ms ease;
  letter-spacing: 0;
  text-transform: none;
}
.nav__submenu a:hover {
  background: var(--mp-blue-100);
  color: var(--mp-blue-900);
}
.nav__submenu a strong {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 2px;
}
.nav__submenu a small {
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--gray-600);
  line-height: 1.4;
}
.nav__submenu a:hover small { color: var(--mp-blue-800); }

.nav__submenu__divider {
  border-top: 1px solid var(--gray-200);
  margin: 8px 0;
}

/* Mega-menu con columnas (Herramientas) */
.nav__submenu--mega {
  min-width: 680px;
  padding: 18px 24px 12px;
}
.nav__mega-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.nav__mega-col h6.nav__mega-cat {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mp-blue-800);
  margin: 0 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--gray-200);
}
.nav__mega-col a {
  display: block;
  padding: 6px 0;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--mp-blue-900);
  text-decoration: none;
  transition: color 150ms ease;
  letter-spacing: 0;
  text-transform: none;
}
.nav__mega-col a:hover {
  color: var(--mp-gold);
  background: transparent;
  padding-left: 4px;
}
.nav__mega-footer {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--gray-200);
  text-align: right;
}
.nav__mega-footer a {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--mp-blue-800);
  text-decoration: none;
}
.nav__mega-footer a:hover { color: var(--mp-gold); }

/* Trigger activo */
.nav__trigger.active { color: var(--mp-gold); }

@media (max-width: 1100px) {
  .nav__submenu--mega { min-width: 520px; }
  .nav__mega-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .nav__submenu--mega { min-width: 0; padding: 4px 0 12px; }
  .nav__mega-grid { grid-template-columns: 1fr; gap: 8px; padding: 0 12px; }
  .nav__mega-col h6.nav__mega-cat { padding: 8px 12px 4px; margin: 0; border-bottom: none; }
  .nav__mega-col a { padding: 8px 24px; }
  .nav__mega-footer { padding: 10px 24px; text-align: left; }
}

/* Mobile: dropdown se vuelve estático cuando el menu se abre */
@media (max-width: 900px) {
  .nav__group { display: block; width: 100%; }
  .nav__group > .nav__trigger { width: 100%; justify-content: space-between; padding: 14px 24px; }
  .nav__submenu {
    position: static;
    transform: none !important;
    box-shadow: none;
    border: none;
    border-top: 1px solid var(--gray-200);
    border-radius: 0;
    background: var(--gray-100);
    min-width: 0;
    padding: 4px 0 12px;
    opacity: 1;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    transition: max-height 250ms ease, visibility 250ms;
    pointer-events: none;
  }
  .nav__group[aria-expanded="true"] > .nav__submenu {
    visibility: visible;
    max-height: 600px;
    pointer-events: auto;
  }
  .nav__submenu a { padding: 10px 32px; }
}