body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    margin: 20px;
    background-color: #f4f7f6;
    color: #333;
}

#app {
    max-width: 600px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

h1, h2 {
    color: #005a9c;
}

.hidden {
    display: none;
}

form {
    border: 1px solid #ccc;
    padding: 20px;
    margin-top: 20px;
    border-radius: 5px;
}

form input,
form textarea {
    display: block;
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    background-color: #eaf4ff;
    border-left: 5px solid #005a9c;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 4px;
}

button {
    background-color: #005a9c;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #004170;
}

#cancel-btn {
    background-color: #999;
}

.delete-btn {
    background-color: #e74c3c;
    color: white;
    padding: 5px 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    float: right;
}

.delete-btn:hover {
    background-color: #c0392b;
}

#person-detail-view {
    padding: 20px;
}

#person-details {
    background-color: #eaf4ff;
    border-left: 5px solid #005a9c;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}

#comments-list {
    margin-top: 20px;
}

#comment-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
}

#back-to-list-btn {
    background: none;
    border: none;
    color: #005a9c;
    cursor: pointer;
    font-size: 16px;
    padding: 0;
    margin-bottom: 20px;
}

#back-to-list-btn:hover {
    text-decoration: underline;
}

.comment {
    border: 1px solid #ccc;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 4px;
}