:root {
  --bg: #ffffff;
  --fg: #1d1d1f;
  --muted: #5b5b60;
  --line: #e2e2e5;
  --soft: #f4f4f5;
  --accent: #2f2f2f;
  --accent-ink: #ffffff;
  --warn-bg: #fff6e0;
  --warn-fg: #6b4a00;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #191919;
    --fg: #ececec;
    --muted: #a7a7ad;
    --line: #333336;
    --soft: #232325;
    --accent: #e6e6e4;
    --accent-ink: #191919;
    --warn-bg: #3a2f12;
    --warn-fg: #f3d68b;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.7 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", "Segoe UI", sans-serif;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
a { color: inherit; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: var(--bg); padding: 4px 8px; }
.top {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px;
  max-width: 920px; margin: 0 auto; padding: 16px;
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; font-size: 20px; text-decoration: none; }
.top nav { display: flex; flex-wrap: wrap; gap: 4px 16px; flex: 1; }
.top nav a, .lang { text-decoration: none; color: var(--muted); }
.top nav a[aria-current="page"] { color: var(--fg); font-weight: 600; }
main { max-width: 920px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 30px; line-height: 1.3; margin: 8px 0 16px; }
h2 { font-size: 22px; margin: 36px 0 8px; }
h3 { font-size: 18px; margin: 24px 0 4px; }
table { border-collapse: collapse; width: 100%; margin: 12px 0; display: block; overflow-x: auto; }
th, td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; vertical-align: top; }
th { background: var(--soft); }
code { background: var(--soft); padding: 1px 4px; border-radius: 4px; font-size: 0.92em; }
blockquote { margin: 12px 0; padding: 8px 14px; border-left: 4px solid var(--line); color: var(--muted); }
.lead { font-size: 19px; color: var(--muted); }
.downloads { display: flex; flex-wrap: wrap; gap: 12px; margin: 20px 0; }
.btn {
  display: inline-block; padding: 12px 20px; border-radius: 10px;
  background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 600;
}
.note { background: var(--soft); border-radius: 10px; padding: 12px 16px; }
.draft { background: var(--warn-bg); color: var(--warn-fg); border-radius: 10px; padding: 12px 16px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; padding: 0; list-style: none; }
.features li { background: var(--soft); border-radius: 12px; padding: 16px; }
.features strong { display: block; margin-bottom: 4px; }
.ad-slot { max-width: 920px; margin: 0 auto; padding: 0 16px; }
footer {
  display: flex; flex-wrap: wrap; gap: 8px 20px; max-width: 920px; margin: 0 auto;
  padding: 20px 16px 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 15px;
}
footer a { color: var(--muted); }
@media (max-width: 480px) {
  body { font-size: 16px; }
  h1 { font-size: 25px; }
}