/* Header y Navegaci¨®n */
header {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.header-container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-left {
  display: flex;
  align-items: center;
}

.header-center {
  flex: 1;
  display: flex;
  justify-content: center;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

.brand:hover {
  color: var(--primary-dark);
}

.brand i {
  width: 1.5rem;
  height: 1.5rem;
}

/* Navegaci¨®n principal */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: 0.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  color: var(--text);
  text-decoration: none;
  border-radius: var(--radius);
  transition: var(--transition);
  font-weight: 500;
}

.nav-link i {
  width: 1.25rem;
  height: 1.25rem;
}

.nav-link:hover {
  color: var(--primary);
  background-color: var(--background);
}

.nav-link.active {
  color: var(--primary);
  background-color: var(--background);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary);
  border-radius: 2px;
}

/* Icono de notificaciones */
.notification-bell {
  position: relative;
}

.notification-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  color: var(--text);
  transition: var(--transition);
}

.notification-link:hover {
  background-color: var(--background);
  color: var(--primary);
}

.notification-link i {
  width: 1.25rem;
  height: 1.25rem;
}

.notification-badge {
  position: absolute;
  top: -0.25rem;
  right: -0.25rem;
  min-width: 1.25rem;
  height: 1.25rem;
  background-color: var(--danger);
  color: white;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.25rem;
}

/* Men¨² de usuario */
.user-menu-container {
  position: relative;
}

.user-menu-button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-avatar {
  width: 2.25rem;
  height: 2.25rem;
  background-color: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  transition: var(--transition);
}

.user-avatar:hover {
  background-color: var(--primary-dark);
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: 15rem;
  background-color: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  display: none;
  z-index: 100;
  overflow: hidden;
}

.user-dropdown.show {
  display: block;
  animation: fadeInDown 0.2s ease-out;
}

.user-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background-color: var(--background);
}

.user-avatar-large {
  width: 3.5rem;
  height: 3.5rem;
  background-color: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.user-name {
  font-weight: 600;
  color: var(--text);
  text-align: center;
}

.user-menu-items {
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
}

.user-menu-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

.user-menu-link:hover {
  background-color: var(--background);
  color: var(--primary);
}

.user-menu-link i {
  width: 1.25rem;
  height: 1.25rem;
}

/* Animaciones */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-0.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Bot¨®n de men¨² m¨®vil */
.mobile-menu-button {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-button i {
  width: 1.5rem;
  height: 1.5rem;
}

/* Media queries */
@media (max-width: 1024px) {
  .header-center {
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  .header-center {
    display: none;
  }
  
  .mobile-menu-button {
    display: block;
    order: 1;
  }
  
  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--surface);
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: none;
    z-index: 49;
  }
  
  .main-nav.show {
    display: block;
  }
  
  .nav-list {
    flex-direction: column;
    width: 100%;
  }
  
  .nav-link {
    width: 100%;
    justify-content: flex-start;
  }
  
  .nav-link.active::after {
    display: none;
  }
}