body {
    font-family: 'Roboto', sans-serif;
    background-color: #f0f8ff;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    text-align: center;
    padding: 2rem;
    background-color: #007BFF;
    color: white;
}

h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

p {
    font-size: 1rem;
}

.cards-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    padding: 2rem;
}

.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 123, 255, 0.1);
    padding: 1.5rem;
    width: 300px;
    text-decoration: none;
    color: #333;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 123, 255, 0.2);
}

.card h2 {
    color: #007BFF;
    margin-bottom: 1rem;
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: #007BFF;
    color: white;
    margin-top: 2rem;
}

.details {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 123, 255, 0.1);
}

.back-link {
    display: inline-block;
    margin-top: 1rem;
    text-decoration: none;
    color: #007BFF;
    font-weight: bold;
}