body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background: #f9fafb;
}

.container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
}

.card {
    background: white;
    padding: 20px;
    margin: 10px 0;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}