:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  color: #222;
  background: #fff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #fff;
  color: #222;
  font-size: 16px;
  line-height: 1.75;
  word-break: keep-all;
}

main {
  width: min(100% - 40px, 760px);
  margin: 0 auto;
  padding: 48px 0 80px;
}

.site-nav,
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0 0 42px;
  padding-bottom: 14px;
  border-bottom: 1px solid #ccc;
  font-size: 14px;
}

a {
  color: #0645ad;
  text-decoration: underline;
  text-underline-offset: 2px;
}

header {
  margin-bottom: 36px;
}

.document-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 0 0 12px;
  color: #666;
  font-size: 14px;
}

.document-meta span + span::before {
  margin-right: 14px;
  color: #aaa;
  content: "·";
}

h1,
h2,
h3 {
  color: #111;
  line-height: 1.35;
}

h1 {
  margin: 0 0 18px;
  font-size: 32px;
}

h2 {
  margin: 42px 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid #ddd;
  font-size: 21px;
}

h3 {
  margin: 26px 0 8px;
  font-size: 17px;
}

p {
  margin: 0 0 14px;
}

ul,
ol {
  margin: 8px 0 18px;
  padding-left: 26px;
}

li {
  margin: 5px 0;
}

table {
  width: 100%;
  margin: 18px 0 24px;
  border-collapse: collapse;
}

th,
td {
  padding: 10px 12px;
  border: 1px solid #bbb;
  text-align: left;
  vertical-align: top;
}

th {
  background: #f3f3f3;
  font-weight: 700;
}

.meta {
  margin: 0 0 10px;
  color: #666;
  font-size: 14px;
}

.intro {
  margin-bottom: 34px;
}

.summary {
  margin: 28px 0;
  padding: 0 0 2px;
  border-top: 2px solid #555;
  border-bottom: 1px solid #ccc;
}

.summary h2 {
  margin-top: 18px;
}

.version-panel {
  margin: 24px 0 34px;
  padding: 14px 16px;
  border: 1px solid #ccc;
  background: #fafafa;
}

.version-panel p,
.version-panel ul {
  margin-bottom: 0;
}

.version-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
}

.version-links li {
  margin: 0;
}

.version-current {
  font-weight: 700;
}

.notice {
  margin: 20px 0;
  padding: 14px 16px;
  border-left: 4px solid #555;
  background: #f7f7f7;
}

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
}

.table-scroll table {
  min-width: 640px;
}

.change-list time {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.grid {
  margin: 30px 0;
  border-top: 1px solid #bbb;
}

.card {
  display: block;
  padding: 16px 0;
  border-bottom: 1px solid #ddd;
  color: #222;
  text-decoration: none;
}

.card strong {
  display: block;
  margin-bottom: 2px;
  color: #0645ad;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.card span {
  color: #555;
}

.button {
  display: inline;
}

footer {
  margin-top: 42px;
  padding-top: 14px;
  border-top: 1px solid #ccc;
  color: #555;
  font-size: 14px;
}

@media (max-width: 520px) {
  body {
    font-size: 15px;
  }

  main {
    width: min(100% - 32px, 760px);
    padding-top: 32px;
  }

  h1 {
    font-size: 27px;
  }

  h2 {
    font-size: 19px;
  }

  th,
  td {
    padding: 8px;
  }

  .document-meta {
    display: block;
  }

  .document-meta span {
    display: block;
  }

  .document-meta span + span::before {
    content: none;
  }
}