:root {
  color-scheme: light;
  --ink: #171814;
  --muted: #686a62;
  --paper: #f4f1e9;
  --sheet: #fbfaf6;
  --line: #d7d2c5;
  --accent: #e4572e;
  --accent-soft: #f7dfd4;
  --green: #174f3a;
  --sans: "Pretendard Variable", Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", system-ui, sans-serif;
  --serif: "Iowan Old Style", "Noto Serif KR", "AppleMyungjo", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.78;
  word-break: keep-all;
  overflow-wrap: break-word;
}
a { color: inherit; text-underline-offset: .2em; }
img { display: block; max-width: 100%; }
.skip-link { position: fixed; z-index: 100; top: -80px; left: 18px; padding: 10px 14px; background: var(--ink); color: white; }
.skip-link:focus { top: 12px; }
.site-header {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 clamp(20px, 4vw, 64px);
  border-bottom: 1px solid var(--line);
}
.wordmark { display: inline-flex; align-items: baseline; gap: 8px; text-decoration: none; letter-spacing: -.04em; }
.wordmark b { font-size: 21px; }
.wordmark span { color: var(--muted); font-size: 14px; letter-spacing: .03em; }
.header-link { font-size: 13px; font-weight: 700; letter-spacing: .04em; text-decoration: none; }
.header-link:hover, .header-link:focus-visible { color: var(--accent); }
main { width: min(100%, 1520px); margin: 0 auto; }
.eyebrow { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.index-hero {
  min-height: 480px;
  padding: clamp(72px, 8vw, 112px) clamp(20px, 6vw, 92px) 64px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 86% 24%, rgba(228,87,46,.14) 0 2px, transparent 3px),
    linear-gradient(115deg, transparent 0 72%, rgba(23,79,58,.06) 72% 100%);
}
.index-hero h1 {
  max-width: 1120px;
  margin: 20px 0 28px;
  font-family: var(--serif);
  font-size: clamp(43px, 5.4vw, 76px);
  font-weight: 500;
  letter-spacing: -.065em;
  line-height: 1.12;
}
.index-hero > p:last-child { max-width: 720px; margin: 0; color: var(--muted); font-size: clamp(17px, 1.6vw, 22px); }
.notes { padding: 0 clamp(20px, 6vw, 92px) 120px; }
.section-heading { display: flex; align-items: center; justify-content: space-between; padding: 25px 0; border-bottom: 2px solid var(--ink); font-size: 12px; letter-spacing: .14em; }
.section-heading b { font-family: var(--serif); font-size: 26px; font-weight: 500; letter-spacing: 0; }
.learn-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(290px, .46fr);
  column-gap: clamp(34px, 6vw, 90px);
  padding: clamp(42px, 6vw, 82px) 0;
  border-bottom: 1px solid var(--line);
}
.card-meta { grid-column: 1; display: flex; gap: 16px; color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .13em; }
.learn-card h2 { grid-column: 1; margin: 15px 0 18px; font-family: var(--serif); font-size: clamp(31px, 4vw, 54px); font-weight: 500; letter-spacing: -.045em; line-height: 1.28; }
.learn-card h2 a { text-decoration: none; }
.learn-card h2 a:hover, .learn-card h2 a:focus-visible { color: var(--accent); }
.learn-card > p { grid-column: 1; max-width: 760px; margin: 0; color: var(--muted); font-size: 18px; }
.read-link { grid-column: 1; align-self: end; width: fit-content; margin-top: 30px; color: var(--green); font-size: 14px; font-weight: 800; text-decoration: none; }
.read-link span { display: inline-block; margin-left: 6px; transition: transform .2s ease; }
.read-link:hover span, .read-link:focus-visible span { transform: translateX(5px); }
.mapped-videos { grid-column: 2; grid-row: 1 / span 4; align-self: stretch; padding: 24px 0 0 26px; border-left: 1px solid var(--line); }
.mapped-videos > strong { color: var(--muted); font-size: 11px; letter-spacing: .08em; }
.mapped-videos ul { margin: 16px 0 0; padding: 0; list-style: none; }
.mapped-videos li { padding: 15px 0; border-top: 1px solid var(--line); }
.mapped-videos a { display: block; }
.video-title { font-weight: 680; line-height: 1.5; text-decoration: none; }
.video-title:hover, .video-title:focus-visible { color: var(--accent); }
.section-link { margin-top: 5px; color: var(--muted); font-size: 12px; }
.article-hero { max-width: 1120px; margin: 0 auto; padding: clamp(76px, 11vw, 150px) clamp(20px, 4vw, 54px) 72px; }
.article-hero h1 { margin: 20px 0 28px; font-family: var(--serif); font-size: clamp(43px, 7vw, 86px); font-weight: 500; letter-spacing: -.064em; line-height: 1.13; }
.article-hero .dek { max-width: 830px; margin: 0; font-size: clamp(20px, 2vw, 27px); line-height: 1.62; }
.scope { max-width: 780px; margin: 28px 0 0; padding: 16px 19px; border-left: 3px solid var(--accent); background: var(--accent-soft); color: #614536; font-size: 14px; line-height: 1.65; }
.video-links { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
.video-links a { padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--sheet); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; text-decoration: none; }
.video-links a:hover, .video-links a:focus-visible { border-color: var(--accent); color: var(--accent); }
.article-layout { display: grid; grid-template-columns: 250px minmax(0, 760px); justify-content: center; gap: clamp(44px, 7vw, 112px); padding: 70px clamp(20px, 4vw, 54px) 130px; border-top: 1px solid var(--line); }
.toc { position: sticky; top: 28px; align-self: start; max-height: calc(100vh - 56px); overflow-y: auto; padding-top: 8px; padding-right: 8px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.toc strong { display: block; margin-bottom: 16px; color: var(--ink); font-size: 11px; letter-spacing: .12em; }
.toc ol { margin: 0; padding: 0; list-style: none; counter-reset: toc; }
.toc li { counter-increment: toc; display: grid; grid-template-columns: 22px 1fr; gap: 5px; margin: 0 0 11px; }
.toc li::before { content: counter(toc, decimal-leading-zero); color: var(--accent); font-family: ui-monospace, monospace; font-size: 10px; padding-top: 3px; }
.toc a { text-decoration: none; }
.toc a:hover, .toc a:focus-visible { color: var(--accent); }
.toc > a { display: block; margin-top: 19px; padding-top: 14px; border-top: 1px solid var(--line); text-decoration: underline; }
.article-section { scroll-margin-top: 24px; padding: 0 0 78px; }
.article-section + .article-section { padding-top: 70px; border-top: 1px solid var(--line); }
.article-section > h2, .sources > h2 { margin: 0 0 34px; font-family: var(--serif); font-size: clamp(32px, 4vw, 48px); font-weight: 500; letter-spacing: -.04em; line-height: 1.28; }
.article-section p { margin: 0 0 24px; }
.article-section h3 { margin: 48px 0 17px; font-size: 23px; line-height: 1.45; }
.article-section h4 { margin: 36px 0 14px; font-size: 18px; }
.article-section ul, .article-section ol { margin: 0 0 28px; padding-left: 1.45em; }
.article-section li { margin: 7px 0; }
.article-section blockquote { margin: 34px 0; padding: 20px 24px; border-left: 3px solid var(--green); background: rgba(23,79,58,.06); font-family: var(--serif); font-size: 20px; }
.article-section blockquote p { margin: 0; }
code { padding: .12em .32em; border-radius: 3px; background: #e6e2d8; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .84em; word-break: break-word; }
pre { max-width: 100%; margin: 30px 0; padding: 22px; overflow-x: auto; border-radius: 4px; background: #20221e; color: #eef0e8; line-height: 1.62; }
pre code { padding: 0; background: none; color: inherit; font-size: 13px; word-break: normal; }
.story-image { margin: 44px 0; }
.story-image img { width: 100%; height: auto; aspect-ratio: 16 / 9; max-height: 680px; object-fit: contain; background: #ddd8cc; }
.story-image figcaption { display: flex; justify-content: space-between; align-items: flex-start; gap: 22px; padding: 13px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; line-height: 1.55; }
.story-image figcaption span { max-width: 75%; }
.story-image figcaption a { flex: none; color: var(--green); font-weight: 700; }
.clip-card { margin: 38px 0 0; padding: 24px; border: 1px solid var(--line); border-top: 3px solid var(--accent); background: var(--sheet); }
.clip-label { color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: .13em; }
.clip-card h3 { margin: 9px 0 5px; font-family: var(--serif); font-size: 23px; font-weight: 600; }
.clip-card p { margin: 8px 0; color: var(--muted); font-size: 14px; }
.clip-card a { display: inline-block; margin-top: 11px; color: var(--green); font-size: 13px; font-weight: 800; }
.sources { scroll-margin-top: 24px; padding-top: 70px; border-top: 2px solid var(--ink); }
.sources ol { margin: 0; padding: 0; list-style-position: inside; }
.sources li { padding: 16px 0; border-top: 1px solid var(--line); }
.sources li a { font-weight: 700; }
.sources li span { display: block; margin: 3px 0 0 1.75em; color: var(--muted); font-size: 13px; }
.site-footer { display: flex; justify-content: space-between; gap: 32px; padding: 34px clamp(20px, 4vw, 64px) 58px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.site-footer a { color: var(--ink); font-weight: 800; text-decoration: none; }
.site-footer p { margin: 0; text-align: right; }

@media (max-width: 820px) {
  body { font-size: 16px; line-height: 1.82; }
  .index-hero { min-height: 460px; }
  .learn-card { grid-template-columns: 1fr; }
  .mapped-videos { grid-column: 1; grid-row: auto; margin-top: 34px; padding: 20px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .article-layout { grid-template-columns: 1fr; padding-top: 0; }
  .toc { position: static; max-height: none; overflow: visible; padding: 24px 0 30px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .toc ol { columns: 2; column-gap: 24px; }
  .toc li { break-inside: avoid; }
  .article-section:first-child { padding-top: 16px; }
}

@media (max-width: 520px) {
  .site-header { min-height: 62px; padding-inline: 17px; }
  .wordmark b { font-size: 18px; }
  .header-link { font-size: 11px; }
  .index-hero { min-height: 420px; padding: 68px 18px 54px; }
  .index-hero h1 { font-size: 42px; line-height: 1.17; }
  .notes { padding: 0 18px 80px; }
  .learn-card { padding: 44px 0; }
  .learn-card h2 { font-size: 33px; }
  .learn-card > p { font-size: 16px; }
  .article-hero { padding: 68px 18px 48px; }
  .article-hero h1 { font-size: 41px; line-height: 1.18; }
  .article-hero .dek { font-size: 19px; }
  .article-layout { gap: 34px; padding: 0 18px 90px; }
  .toc ol { columns: 1; }
  .article-section { padding-bottom: 58px; }
  .article-section + .article-section { padding-top: 52px; }
  .article-section > h2, .sources > h2 { font-size: 31px; }
  .story-image { width: calc(100% + 36px); margin-left: -18px; }
  .story-image figcaption { display: block; padding: 12px 18px; }
  .story-image figcaption span { display: block; max-width: none; margin-bottom: 7px; }
  .clip-card { padding: 19px; }
  .site-footer { display: block; padding: 28px 18px 42px; }
  .site-footer p { margin-top: 8px; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}