/* ===================================
   NAVBAR MODERNO
   =================================== */
nav {
  background: linear-gradient(135deg, #a50000 0%, #7a0000 100%) !important;
  padding: 0 !important;
  text-align: center !important;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15) !important;
  position: sticky !important;
  top: 0 !important;
  z-index: 1000 !important;
  backdrop-filter: blur(10px) !important;
}

nav ul {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  flex-wrap: wrap !important;
}

nav li {
  display: inline-block !important;
  margin: 0 !important;
  position: relative !important;
}

nav a {
  display: block !important;
  text-decoration: none !important;
  color: #ffffff !important;
  font-weight: 600 !important;
  font-size: 1rem !important;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
  padding: 1.2rem 2rem !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  position: relative !important;
  overflow: hidden !important;
}

/* Efecto de fondo al hover */
nav a::before {
  content: '' !important;
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  background: rgba(255, 255, 255, 0.1) !important;
  transform: scaleX(0) !important;
  transform-origin: left !important;
  transition: transform 0.3s ease !important;
  z-index: -1 !important;
}

nav a:hover::before {
  transform: scaleX(1) !important;
}

/* Línea inferior animada */
nav a::after {
  content: '' !important;
  position: absolute !important;
  bottom: 0 !important;
  left: 50% !important;
  width: 0 !important;
  height: 3px !important;
  background: #ffffff !important;
  transition: all 0.3s ease !important;
  transform: translateX(-50%) !important;
  border-radius: 2px !important;
}

nav a:hover::after {
  width: 80% !important;
}

nav a:hover {
  color: #ffffff !important;
  transform: translateY(-2px) !important;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
}

/* Estado activo */
nav a.active {
  background: rgba(255, 255, 255, 0.15) !important;
}

nav a.active::after {
  width: 80% !important;
  background: #ffd700 !important;
}

.logo-container {
  display: flex !important;
  justify-content: center !important;
  padding: 1rem 0 !important;
}

.bienvenido-usuario {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
  color: #fff !important;
  font-weight: 600 !important;
  font-size: 1rem !important;
  padding: 1.2rem 2rem !important;
  display: inline-block !important;
  background: rgba(255, 255, 255, 0.1) !important;
  border-radius: 8px !important;
  margin: 0.5rem !important;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  transition: all 0.3s ease !important;
}

.bienvenido-usuario:hover {
  background: rgba(255, 255, 255, 0.15) !important;
  transform: scale(1.02) !important;
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 768px) {
  nav ul {
    flex-direction: column !important;
    padding: 0.5rem 0 !important;
  }
  
  nav li {
    width: 100% !important;
  }
  
  nav a {
    padding: 1rem !important;
    width: 100% !important;
  }
  
  nav a::after {
    height: 2px !important;
  }
  
  .bienvenido-usuario {
    margin: 0.5rem 1rem !important;
  }
}

@media (max-width: 480px) {
  nav a {
    font-size: 0.95rem !important;
    padding: 0.9rem !important;
  }
  
  .bienvenido-usuario {
    font-size: 0.9rem !important;
    padding: 0.9rem 1.5rem !important;
  }
}