:root {
  --ground: #fbfcfe;
  --surface: #f1f4f9;
  --ink: #131a26;
  --ink-soft: #55607a;
  --rule: #dde3ee;
  --accent: #1479ee;
  --accent-ink: #0b5fc4;
  --todo: #fff1b8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0d1320;
    --surface: #161e2f;
    --ink: #e9eef8;
    --ink-soft: #9aa6bf;
    --rule: #26314a;
    --accent: #4a9bff;
    --accent-ink: #7db6ff;
    --todo: #5a4a00;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}
a { color: var(--accent-ink); text-underline-offset: 0.18em; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
.wrap { max-width: 41rem; margin: 0 auto; padding: 0 20px; }
.masthead { border-bottom: 1px solid var(--rule); }
.masthead .wrap { display: flex; align-items: center; gap: 12px; padding-top: 18px; padding-bottom: 18px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 650; font-size: 1.1rem; letter-spacing: -0.01em; }
.brand img { width: 32px; height: 32px; display: block; }
.masthead nav { margin-left: auto; display: flex; gap: 18px; font-size: 0.92rem; }
.masthead nav a { color: var(--ink-soft); text-decoration: none; }
.masthead nav a:hover, .masthead nav a[aria-current] { color: var(--ink); }
main { padding: 44px 0 64px; }
h1 { font-size: 2rem; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 8px; text-wrap: balance; }
h2 { font-size: 1.2rem; line-height: 1.3; letter-spacing: -0.01em; margin: 44px 0 10px; text-wrap: balance; }
h3 { font-size: 1rem; margin: 26px 0 6px; }
p, ul, ol { margin: 0 0 16px; }
ul, ol { padding-left: 1.3em; }
li { margin-bottom: 6px; }
.lede { font-size: 1.12rem; color: var(--ink-soft); margin-bottom: 28px; }
.meta { color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 30px; }
.summary { background: var(--surface); border-radius: 14px; padding: 20px 22px 6px; margin: 0 0 8px; }
.summary h2 { margin-top: 0; font-size: 1rem; }
.hero { display: flex; flex-direction: column; gap: 22px; align-items: flex-start; }
.hero img { width: 96px; height: 96px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 14px; margin-top: 30px; padding: 0; list-style: none; }
.cards li { background: var(--surface); border-radius: 14px; padding: 18px 20px; margin: 0; }
.cards strong { display: block; margin-bottom: 4px; }
.cards span { color: var(--ink-soft); font-size: 0.95rem; }
mark.todo { background: var(--todo); color: inherit; padding: 0 4px; border-radius: 4px; }
footer { border-top: 1px solid var(--rule); color: var(--ink-soft); font-size: 0.9rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 18px; padding-top: 22px; padding-bottom: 36px; }
footer a { color: var(--ink-soft); }
:lang(ko) { word-break: keep-all; }