/* Estilos básicos */
.alternativa {
    transition: all 0.2s;
    text-align: left;
    margin-bottom: 5px;
  }
  
  .alternativa-letra {
    display: inline-block;
    width: 25px;
    height: 25px;
    line-height: 25px;
    text-align: center;
    background-color: #3a86ff;
    color: white;
    border-radius: 50%;
    margin-right: 10px;
  }
  
  /* Cores de feedback */
  .bg-success {
    background-color: #28a745 !important;
  }
  
  .bg-danger {
    background-color: #dc3545 !important;
  }
  
  /* Chat de IA */
  #chat-ia {
    display: none;
    height: 100%;
  }
  
  #mensagens-ia {
    max-height: 400px;
    overflow-y: auto;
  }
  
  /* Responsividade */
  @media (max-width: 992px) {
    #chat-ia {
      margin-top: 20px;
    }
  }
  
  /* Estilos para o chat */
#mensagens-ia {
    max-height: 400px;
    overflow-y: auto;
    padding: 10px;
  }
  
  /* Estilo para mensagens do usuário */
  .bg-primary {
    background-color: #3a86ff !important;
    color: white !important;
  }
  
  /* Estilo para mensagens da IA */
  .bg-light {
    background-color: #f8f9fa !important;
    border: 1px solid #dee2e6;
  }
  
  /* Campo de entrada */
  #pergunta-ia {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
  }
  
  #enviar-pergunta {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
  }

  /* Filtros */
.materia-container {
  border-left: 3px solid #dee2e6;
  padding-left: 15px;
}

.list-group-item {
  transition: all 0.2s;
}

.form-check-input:checked {
  background-color: #3a86ff;
  border-color: #3a86ff;
}

#aplicar-filtros {
  transition: all 0.3s;
}

#aplicar-filtros:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}