:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1c1b;
  --muted: #5b6360;
  --line: #e3e7e5;
  --accent: #086B5A;
  --card: #f6f8f7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14181a;
    --fg: #e6eaec;
    --muted: #9aa4a8;
    --line: #2a3134;
    --accent: #45b394;
    --card: #1b2124;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 0 20px 96px;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic",
        "Apple SD Gothic Neo", "Noto Sans KR", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}
main { max-width: 720px; margin: 0 auto; }
header {
  padding: 48px 0 24px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}
.app {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; color: var(--accent); text-decoration: none;
  font-size: 15px; letter-spacing: -0.01em;
}
.mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: #086B5A; color: #fff;
  display: grid; place-items: center;
  font-weight: 800; font-size: 15px;
}
h1 { font-size: 27px; line-height: 1.35; margin: 20px 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 19px; margin: 40px 0 10px; letter-spacing: -0.01em; }
h3 { font-size: 16px; margin: 28px 0 8px; }
p, li { color: var(--fg); }
.date { color: var(--muted); font-size: 14px; margin: 0; }
.lead { color: var(--muted); }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
a { color: var(--accent); }
table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 15px; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: var(--card); font-weight: 600; }
.box {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 18px 20px; margin: 20px 0;
}
.box p:first-child { margin-top: 0; }
.box p:last-child { margin-bottom: 0; }
code {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 5px; padding: 1px 5px; font-size: 0.9em;
}
footer {
  margin-top: 56px; padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted); font-size: 14px;
}
footer a { margin-right: 16px; }
details { margin-top: 48px; border-top: 1px solid var(--line); padding-top: 24px; }
summary { cursor: pointer; color: var(--muted); font-size: 15px; }
details[open] summary { margin-bottom: 8px; }
@media (max-width: 480px) {
  h1 { font-size: 23px; }
  table { font-size: 14px; }
  th, td { padding: 8px 10px; }
}