:root {
  --paper: #f6efe2;
  --sheet: #fffaf0;
  --ink: #3b2a20;
  --muted: #7a6657;
  --line: #e2d5bf;
  --accent: #6b7a3a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1f1a16;
    --sheet: #2a231d;
    --ink: #f1e7d6;
    --muted: #b5a48f;
    --line: #43382e;
    --accent: #b9c77a;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans KR",
    "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  font-size: 17px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 16px 72px;
}

.sheet {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px 24px;
}

@media (min-width: 600px) {
  .sheet { padding: 48px; }
}

.lang {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 15px;
}

.lang [aria-current="true"] {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

h1 {
  font-size: 30px;
  line-height: 1.25;
  margin: 0 0 8px;
}

h2 {
  font-size: 20px;
  line-height: 1.35;
  margin: 40px 0 8px;
}

p, ul { margin: 0 0 16px; }

ul { padding-left: 22px; }

li { margin-bottom: 6px; }

a { color: var(--accent); }

.meta {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 24px;
}

.summary {
  border-left: 4px solid var(--accent);
  padding: 4px 0 4px 16px;
  font-weight: 600;
}

.table-wrap { overflow-x: auto; margin-bottom: 16px; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15.5px;
}

th, td {
  text-align: left;
  vertical-align: top;
  padding: 10px 12px 10px 0;
  border-bottom: 1px solid var(--line);
}

th { color: var(--muted); font-weight: 600; }

footer {
  margin-top: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}