* { box-sizing: border-box; }

body {
  margin: 0;
  color: #111;
  background: #fff;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a { color: #0645ad; }

.site-header {
  border-bottom: 1px solid #999;
  padding: 16px 20px;
}

.site-header a {
  color: #111;
  font-weight: bold;
  text-decoration: none;
}

.container {
  width: min(760px, calc(100% - 32px));
  margin: 32px auto 40px;
}

h1 { font-size: 28px; margin: 0 0 16px; }
h2 { font-size: 21px; margin-top: 28px; }
h3 { font-size: 18px; margin-top: 24px; }

.tool-list {
  border: 1px solid #ccc;
  padding: 14px 14px 14px 36px;
  margin-top: 22px;
}
.tool-list li { margin: 8px 0; }

.tool-box {
  border: 1px solid #999;
  padding: 16px;
  margin: 22px 0;
}

label { display: block; margin: 10px 0 5px; font-weight: bold; }
input[type="file"], input[type="text"], textarea, select { max-width: 100%; }
input[type="text"], textarea, select { border: 1px solid #777; padding: 6px; font: inherit; }
textarea { width: 100%; min-height: 150px; resize: vertical; }
button { padding: 6px 12px; font: inherit; cursor: pointer; }

.actions { margin-top: 16px; }
.status { min-height: 24px; margin: 12px 0; }
.result { margin-top: 14px; }
.result a { display: inline-block; }

.faq { border-top: 1px solid #999; margin-top: 30px; padding-top: 8px; }
.faq dt { font-weight: bold; margin-top: 15px; }
.faq dd { margin: 4px 0 0; }

.site-footer {
  border-top: 1px solid #ccc;
  padding: 16px 20px;
  margin-top: 40px;
  color: #666;
  font-size: 13px;
}

.site-footer a { color: #666; }
.page-nav { margin: 0 0 20px; }
.bottom-nav { margin-top: 28px; }

@media (max-width: 520px) {
  .site-header { padding: 12px; }
  .container { width: min(100% - 24px, 760px); margin-top: 20px; margin-bottom: 28px; }
  .site-footer { padding: 14px 12px; }
  h1 { font-size: 24px; }
}