body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    background: #f7f7f7;
    color: #111;
}

.page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

.intro {
    margin-bottom: 20px;
}

.search-form {
    background: #fff;
    border: 1px solid #ddd;
    padding: 16px;
    margin-bottom: 20px;
}

label,
legend {
    font-weight: bold;
}

input[type="file"],
input[type="text"] {
    display: block;
    width: 100%;
    box-sizing: border-box;
    margin: 8px 0 16px;
    padding: 10px;
    font-size: 16px;
}

fieldset {
    border: 1px solid #ddd;
    margin: 0 0 16px;
    padding: 12px;
}

fieldset label {
    margin-right: 18px;
    font-weight: normal;
}

button {
    padding: 10px 16px;
    font-size: 16px;
    cursor: pointer;
}

.message {
    padding: 12px;
    margin: 12px 0;
    border: 1px solid #aaa;
    background: #fff;
}

.error {
    border-color: #8a0000;
}

.results {
    margin-top: 20px;
}

.thread-result {
    background: #fff;
    border-top: 3px solid #222;
    margin: 24px 0;
    padding: 16px;
}

.thread-header {
    margin-bottom: 12px;
    line-height: 1.6;
}

pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: Consolas, "Courier New", monospace;
    font-size: 14px;
    line-height: 1.45;
}