/* Estilo Geral */
body {
font-family: ‘Poppins’, sans-serif;
background-color: #f9fbfc;
color: #333;
margin: 0;
padding: 0;
line-height: 1.6;
}

/* Header */
header {
text-align: center;
padding: 40px 20px;
background: linear-gradient(to top right, #000099 0%, #33cccc 80%);
color: white;
margin-bottom: 30px;
}

header h1 {
font-size: 2.5rem;
margin: 20px 0;
text-transform: uppercase;
letter-spacing: 2px;
}

header .intro {
font-size: 1.1rem;
max-width: 700px;
margin: 0 auto;
font-weight: 300;
}

/* Seções de Categorias */
.category {
max-width: 1100px;
margin: 0 auto 50px;
padding: 0 20px;
}

.category h2 {
font-size: 1.8rem;
color: #444;
text-align: center;
margin-bottom: 30px;
position: relative;
}

.category h2::after {
content: ”;
width: 80px;
height: 4px;
background: #2575fc;
position: absolute;
bottom: -10px;
left: 50%;
transform: translateX(-50%);
}

/* Grid de Cards */
.exercise-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
gap: 20px;
}

.exercise-card {
background: white;
border-radius: 10px;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
overflow: hidden;
transition: transform 0.3s ease, box-shadow 0.3s ease;
cursor: pointer;
}

.exercise-card:hover {
transform: translateY(-5px);
box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.card-header {
padding: 15px 20px;
background: #f0f5ff;
display: flex;
justify-content: space-between;
align-items: center;
font-weight: 600;
color: #333;
}

.arrow-icon {
transition: transform 0.3s ease;
}

.arrow-icon.rotate {
transform: rotate(180deg);
}

/* Submenu */
.sub-menu {
list-style: none;
padding: 0;
margin: 0;
max-height: 0;
overflow: hidden;
transition: max-height 0.5s ease;
background: #fafafa;
}

.sub-menu.open {
max-height: 500px; /* Ajustar conforme o conteúdo */
}

.sub-menu li {
padding: 12px 20px;
border-bottom: 1px solid #eee;
transition: background 0.3s ease;
}

.sub-menu li:hover {
background: #e6f2ff;
}

.sub-menu li:last-child {
border-bottom: none;
}

.check-mark {
color: #2ecc71;
margin-left: 5px;
}

/* Footer */
footer {
text-align: center;
padding: 20px;
background: #eee;
color: #666;
font-size: 0.9rem;
}

/* Responsividade */
@media (max-width: 768px) {
header h1 {
font-size: 1.8rem;
}
header .intro {
font-size: 1rem;
}
.exercise-grid {
grid-template-columns: 1fr;
}
}

Exercícios de Eletrônica Básica

Explore o fascinante universo da eletrotécnica! Cada exercício é uma
porta para o conhecimento. Pratique, inove e descubra seu potencial.

// Selecionar todos os cards
const exerciseCards = document.querySelectorAll(‘.exercise-card’);

// Adicionar evento de clique para expandir/recolher submenu
exerciseCards.forEach(card => {
const header = card.querySelector(‘.card-header’);
const submenu = card.querySelector(‘.sub-menu’);
const arrowIcon = card.querySelector(‘.arrow-icon’);

header.addEventListener(‘click’, () => {
submenu.classList.toggle(‘open’);
arrowIcon.classList.toggle(‘rotate’);
});

// Adicionar evento de clique para os itens do submenu
const subItems = submenu.querySelectorAll(‘li’);
subItems.forEach(item => {
item.addEventListener(‘click’, (e) => {
e.stopPropagation();
const link = item.getAttribute(‘data-link’);
if (link && link !== ‘#’) {
if (confirm(`Você selecionou: ${item.textContent.trim().split(‘✔’)[0]}nDeseja acessar o exercício?`)) {
window.open(link, ‘_blank’);
}
}
});
});
});