body {
    font-family: -apple-system, sans-serif;
    text-align: center;
    padding: 40px;
    max-width: 600px;
    margin: 0 auto;
}

hr {
    width: 25%;
    margin: 20px auto;
    border: 0;
    border-top: 1px solid #eee;
}

h1 {
    font-size: 20px;
}

h2 {
    font-size: 18px;
    margin: 12px 0 4px;
}

p {
    line-height: 1.5;
}

.muted {
    color: #888;
    font-size: 13px;
}

.error {
    color: #c0392b;
    font-size: 13px;
}

.box {
    background: #f9f9f9;
    border: 1px solid #eee;
    border-radius: 6px;
    padding: 12px;
    margin: 12px 0;
    text-align: left;
}

code {
    background: #f5f5f5;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 13px;
    word-break: break-all;
}

label {
    display: block;
    font-size: 13px;
    margin-bottom: 6px;
}

input[type="text"] {
    font-family: -apple-system, sans-serif;
    font-size: 14px;
    padding: 8px;
    width: 100%;
    max-width: 320px;
    box-sizing: border-box;
    margin-bottom: 10px;
}

button {
    font-family: -apple-system, sans-serif;
    font-size: 14px;
    padding: 8px 16px;
    cursor: pointer;
}

input[type="number"] {
    font-family: -apple-system, sans-serif;
    font-size: 13px;
    padding: 4px;
    width: 60px;
}

select {
    font-family: -apple-system, sans-serif;
    font-size: 14px;
    padding: 6px;
}

input[type="color"] {
    vertical-align: middle;
    width: 32px;
    height: 24px;
    padding: 0;
    border: 1px solid #ddd;
}

input[type="file"] {
    font-size: 13px;
    display: block;
    margin-bottom: 10px;
}