body {
    font-family: Arial, sans-serif;
}

.container {
    max-width: 600px;
}

.card {
    border: none;
    border-radius: 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.card-header {
    background-color: white;
    border: none;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header .btn {
    text-align: left;
    font-weight: bold;
}

.card-body {
    padding: 20px;
    background-color: #f9f9f9;
}

.card-body ul {
    list-style: none;
    padding-left: 0;
}

.card-body li {
    margin-bottom: 10px;
}