:root {
  --bg: #f7f8fa;
  --paper: #ffffff;
  --ink: #171b22;
  --muted: #5d6572;
  --line: #d9dee7;
  --line-strong: #aeb7c4;
  --accent: #0d47a1;
  --accent-soft: #eef5ff;
  --danger-bg: #fff6f4;
  --danger-line: #e2aaa0;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family:
    "Pretendard Variable", "Apple SD Gothic Neo", "Noto Sans KR", system-ui,
    sans-serif;
  line-height: 1.72;
  word-break: keep-all;
}

.shell {
  width: min(880px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 64px 0 72px;
}

.hero {
  padding: 0 0 30px;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.eyebrow {
  display: block;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: none;
}

h1 {
  margin: 14px 0 14px;
  color: var(--ink);
  font-size: clamp(34px, 7vw, 52px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero p {
  margin: 0;
  max-width: 720px;
  color: var(--muted);
  font-size: 16px;
}

.page-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 28px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-links a {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 18px 0 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.page-links a + a {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

main {
  display: block;
  margin-top: 12px;
}

section {
  padding: 30px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

h2 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: clamp(21px, 4vw, 28px);
  line-height: 1.22;
  letter-spacing: 0;
}

p,
li,
td,
th {
  color: var(--ink);
  font-size: 15px;
}

p {
  margin: 0 0 12px;
}

p:last-child,
ul:last-child,
.table-wrap:last-child {
  margin-bottom: 0;
}

ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

li + li {
  margin-top: 7px;
}

.meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin-top: 28px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.meta-card {
  padding: 14px 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.meta-card:nth-child(odd) {
  padding-right: 18px;
}

.meta-card:nth-child(even) {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.meta-card strong {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: none;
}

.meta-card span {
  display: block;
  margin-top: 4px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
}

.notice,
.warning {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 8px;
  box-shadow: none;
}

.notice {
  border: 1px solid var(--line);
  background: var(--paper);
}

.warning {
  border: 1px solid var(--danger-line);
  background: var(--danger-bg);
}

.notice > strong,
.warning > strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
}

.table-wrap {
  margin-top: 16px;
  overflow-x: auto;
  border-top: 1px solid var(--line);
}

table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

th,
td {
  padding: 12px 14px 12px 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  background: transparent;
  font-weight: 800;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.chip {
  padding: 4px 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.chip + .chip::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
}

code {
  padding: 2px 5px;
  border-radius: 5px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 0.92em;
}

.example {
  margin: 14px 0 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  white-space: pre-wrap;
}

.muted,
footer {
  color: var(--muted);
}

footer {
  margin-top: 0;
  padding: 24px 0 0;
  font-size: 13px;
}

footer .page-links {
  margin-top: 0;
  margin-bottom: 16px;
}

@media (max-width: 640px) {
  .shell {
    width: min(100vw - 28px, 880px);
    padding-top: 34px;
    padding-bottom: 48px;
  }

  .hero,
  section {
    padding-left: 0;
    padding-right: 0;
  }

  .page-links {
    display: grid;
  }

  .page-links a {
    min-height: 44px;
    padding: 0;
  }

  .page-links a + a {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .meta {
    grid-template-columns: 1fr;
  }

  .meta-card:nth-child(odd),
  .meta-card:nth-child(even) {
    padding-right: 0;
    padding-left: 0;
    border-left: 0;
  }

  .meta-card + .meta-card {
    border-top: 1px solid var(--line);
  }
}