body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    background: #f5f8ff;
    color: #333;
}

.header {
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    color: white;
    padding: 50px 20px;
    text-align: center;
}

.header h1 {
    margin-bottom: 10px;
    font-size: 2.5rem;
}

.header p {
    font-size: 1.2rem;
}

.tutorials-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 40px 20px;
    max-width: 80%; /* opcional, se quiser limitar a largura */
    margin: 0 auto;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 114, 255, 0.2);
    text-decoration: none;
    color: #333;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 114, 255, 0.3);
}

.card h2 {
    margin-bottom: 10px;
}

.footer {
    text-align: center;
    padding: 20px;
    background-color: #eef3fb;
    font-size: 0.9rem;
    color: #777;
}