/* Reset básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: #f8f9fa;
    color: #333;
}

/* Container Principal */
.admin-container {
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Título Principal */
h1 {
    text-align: center;
    font-size: 2.5em;
    color: #007BFF;
    margin-bottom: 30px;
}

/* Mensagem de sucesso/erro */
.mensagem {
    background-color: #d4edda;
    color: #155724;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.1em;
}

/* Lista de Categorias */
.categoria-lista {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.categoria-item {
    flex: 1 1 calc(33.333% - 20px);
    padding: 15px;
    background-color: #f3f3f3;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    min-width: 150px;
}

.categoria-item label {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.categoria-nome {
    font-size: 1.2em;
    color: #666;
    margin-left: 10px;
}

/* Checkbox Estilizado */
.categoria-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: #007BFF;
}

/* Botão de Salvar */
.btn-salvar {
    display: block;
    width: 100%;
    max-width: 300px;
    margin: 30px auto;
    padding: 15px;
    background-color: #007BFF;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1.2em;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-salvar:hover {
    background-color: #0056b3;
}

/* Responsividade */
@media (max-width: 768px) {
    .categoria-item {
        flex: 1 1 calc(50% - 20px);
    }

    h1 {
        font-size: 2em;
    }
}

@media (max-width: 480px) {
    .categoria-item {
        flex: 1 1 100%;
    }

    h1 {
        font-size: 1.8em;
    }
}