/* ── Header & Nav ───────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: var(--space-md);
}

.header-logo img {
  height: 52px;
  width: auto;
  display: block;
}

/* ── Navegación principal ───────────────────────────────────── */
.main-nav { display: none; }

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-item { position: relative; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-pale);
}
.nav-link i { font-size: 0.7rem; transition: transform var(--transition); }
.nav-item:hover .nav-link i { transform: rotate(180deg); }

/* Dropdown */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;          /* pega al nav-link sin gap */
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm) 0;
  padding-top: calc(var(--space-sm) + 6px); /* 6px de "aire visual" sin gap real */
  z-index: 200;
  /* Puente invisible sobre el gap para que el hover no se corte */
  margin-top: -2px;
}
/* Mantener abierto mientras el cursor está en el ítem O en el menú */
.nav-item:hover .dropdown-menu { display: block; }
.nav-item:focus-within .dropdown-menu { display: block; }

.dropdown-link {
  display: block;
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  color: var(--color-text);
  transition: background var(--transition), color var(--transition);
}
.dropdown-link:hover {
  background: var(--color-primary-pale);
  color: var(--color-primary);
}

/* CTA nav */
.nav-cta { margin-left: var(--space-sm); }

/* ── Hamburger / Mobile nav ─────────────────────────────────── */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  touch-action: manipulation; /* elimina el delay de 300ms en iOS/Android */
  cursor: pointer;
}
.hamburger:hover { background: var(--color-primary-pale); }
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Drawer mobile */
.mobile-nav {
  position: fixed;
  top: 0; right: -100%;
  width: min(340px, 88vw);
  height: 100dvh;
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  transition: right 0.3s cubic-bezier(0.4,0,0.2,1);
  overflow-y: auto;
}
.mobile-nav.open { right: 0; }

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav-header img { height: 40px; }
.mobile-nav-close {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
  padding: 4px 8px;
}

.mobile-nav-list { padding: var(--space-md) 0; }
.mobile-nav-link {
  display: block;
  padding: 0.75rem var(--space-lg);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition), background var(--transition);
}
.mobile-nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-pale);
}
.mobile-sub-link {
  display: block;
  padding: 0.6rem var(--space-lg) 0.6rem 2.5rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition), background var(--transition);
}
.mobile-sub-link:hover { color: var(--color-primary); background: var(--color-primary-pale); }

.mobile-nav-footer {
  padding: var(--space-lg);
  margin-top: auto;
  border-top: 1px solid var(--color-border);
}
.mobile-nav-footer .btn { width: 100%; justify-content: center; }

/* Overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 1050;
}
.nav-overlay.open { display: block; }

@media (min-width: 1024px) {
  .main-nav { display: flex; align-items: center; gap: var(--space-sm); }
  .hamburger { display: none; }
}