.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 3px solid var(--co);
  transition: box-shadow var(--t-base);
}

.nav.scrolled { box-shadow: var(--shadow-sm); }

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: var(--sp-8);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--gray-900);
  flex-shrink: 0;
}

.nav__logo-icon { font-size: 26px; }
.nav__logo-text span { color: var(--co); }

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  flex: 1;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--gray-600);
  transition: color var(--t-fast);
}

.nav__link:hover { color: var(--co); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

/* ─── Hamburger ─────────────────────────────────── */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--sp-2);
  border: none;
  background: none;
  flex-shrink: 0;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  border-radius: var(--r-full);
  transition: transform var(--t-base), opacity var(--t-base);
  transform-origin: center;
}

/* Animación hamburger → X */
.nav__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Panel móvil (debajo del nav sticky) ─── */
.nav__mobile {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--t-slow);
  background: #fff;
}

.nav__mobile.is-open { max-height: 420px; }

.nav__mobile-inner {
  padding: var(--sp-4) var(--pad-x) var(--sp-6);
  border-top: 1px solid var(--gray-100);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.nav__mobile-link {
  display: block;
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--gray-700);
  border-radius: var(--r-lg);
  transition: all var(--t-fast);
}

.nav__mobile-link:hover,
.nav__mobile-link:active { background: var(--col); color: var(--co); }

.nav__mobile-divider {
  height: 1px;
  background: var(--gray-100);
  margin: var(--sp-3) 0;
}

.nav__mobile-actions {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

/* ─── Dropdown de usuario ────────────────────────── */
.nav__dropdown { position: relative; }

.nav__dropdown-trigger { display: flex; align-items: center; gap: 4px; }
.nav__dropdown-arrow { font-size: 0.65rem; transition: transform var(--t-fast); }
.nav__dropdown.is-open .nav__dropdown-arrow { transform: rotate(180deg); }

.nav__dropdown-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: #fff;
  border: 1px solid #eee;
  border-radius: 10px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.10);
  min-width: 180px;
  z-index: 200;
  overflow: hidden;
}
.nav__dropdown-menu.is-open { display: block; }

.nav__dropdown-item {
  display: block;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #333;
  text-decoration: none;
  transition: background var(--t-fast);
}
.nav__dropdown-item:hover { background: #f9f9f9; color: #111; }
.nav__dropdown-item--admin { color: var(--cn); font-weight: 600; }
.nav__dropdown-item--admin:hover { background: var(--cnl); color: var(--cn); }
.nav__dropdown-item--danger { color: #c0392b; }
.nav__dropdown-item--danger:hover { background: #fee2e2; color: #c0392b; }

.nav__dropdown-divider { height: 1px; background: #f0f0f0; }

/* ─── Breakpoints ────────────────────────────────── */
@media (max-width: 768px) {
  .nav__links    { display: none; }
  .nav__actions  { display: none; }  /* reemplazado por el panel móvil */
  .nav__hamburger { display: flex; }
}

@media (min-width: 769px) {
  .nav__mobile { display: none; }
}