:root {
  color-scheme: light;
  --ink: #17241d;
  --muted: #637067;
  --line: #dce5dd;
  --surface: #ffffff;
  --canvas: #f5f8f5;
  --accent: #1f6b45;
  --accent-soft: #e7f3ea;
  --focus: #1c6fe0;
}

* { box-sizing: border-box; }
html { background: var(--canvas); }
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at 50% -20%, #e3f3e7 0, var(--canvas) 42rem);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
a { color: var(--accent); text-underline-offset: .18em; }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.shell { width: min(100% - 40px, 720px); margin: 0 auto; padding: 64px 0 40px; }
.hero, .document-header { margin-bottom: 28px; }
.brand { display: inline-block; color: var(--ink); font-size: 22px; font-weight: 800; letter-spacing: -.04em; text-decoration: none; }
.eyebrow { margin: 18px 0 4px; color: var(--accent); font-size: 14px; font-weight: 700; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1 { margin: 0; font-size: clamp(30px, 7vw, 42px); line-height: 1.22; letter-spacing: -.045em; }
h2 { margin: 40px 0 12px; font-size: 21px; line-height: 1.35; letter-spacing: -.03em; }
h3 { margin: 26px 0 6px; font-size: 17px; }
.lead { max-width: 38rem; margin: 14px 0 0; color: var(--muted); font-size: 17px; }
.meta { margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.card { border: 1px solid var(--line); border-radius: 22px; background: var(--surface); box-shadow: 0 10px 30px rgb(35 67 44 / 6%); }
.intro { margin-bottom: 16px; padding: 20px 28px 22px; }
.intro h2 { margin: 0 0 10px; }
.intro ul { margin: 0; padding-left: 24px; }
.link-list { overflow: hidden; }
.link-list a { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 90px; padding: 20px; color: var(--ink); text-decoration: none; }
.link-list a + a { border-top: 1px solid var(--line); }
.link-list a:hover { background: #f9fcf9; }
.link-list strong, .link-list small { display: block; }
.link-list small { margin-top: 3px; color: var(--muted); }
.document { padding: 28px; }
.document > :first-child { margin-top: 0; }
.document p, .document li { max-width: 65ch; }
.document ul, .document ol { margin: 10px 0; padding-left: 24px; }
.document li + li { margin-top: 6px; }
.back-link { display: inline-block; margin-bottom: 30px; font-weight: 700; }
.notice { margin-top: 28px; padding: 18px 20px; border-radius: 14px; background: var(--accent-soft); }
.notice p { margin: 4px 0 0; }
footer { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 20px; width: min(100% - 40px, 720px); margin: 0 auto; padding: 8px 0 32px; color: var(--muted); font-size: 14px; }
@media (max-width: 420px) {
  .shell { width: min(100% - 32px, 720px); padding-top: 40px; }
  .document { padding: 20px; border-radius: 18px; }
  .intro { padding: 20px; border-radius: 18px; }
}