body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    line-height: 1.4;
    color: #333;
    background: #fafafa;
    margin: 30px;
}

h2 {
    margin: 0 0 20px;
    font-size: 28px;
}

h3 {
    margin: 24px 0 10px;
    font-size: 18px;
}

p {
    margin: 10px 0;
}

label {
    display: block;
    margin: 6px 0;
}

input[type="checkbox"] {
    margin-right: 8px;
}

input[type="number"],
select {
    padding: 5px 8px;
    border: 1px solid #bbb;
    border-radius: 4px;
    font-size: 14px;
}

button {
    padding: 8px 18px;
    border: 1px solid #888;
    border-radius: 5px;
    background: #f3f3f3;
    cursor: pointer;
    font-size: 14px;
}

button:hover {
    background: #e8e8e8;
}

hr {
    border: 0;
    border-top: 1px solid #ddd;
    margin: 24px 0;
}

.success {
    background: #e8f8e8;
    border: 1px solid #7db77d;
    border-radius: 6px;
    color: #256029;
    padding: 10px;
    margin-bottom: 20px;
}