:root {
  color-scheme: light;
  --paper: #ffffff;
  --wash: #f3f7fa;
  --ink: #13293d;
  --muted: #526779;
  --accent: #175e78;
  --tint: #e4f2f5;
  --line: #d9e3eb;
  font-family: "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  line-height: 1.65;
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--accent); text-underline-offset: .22em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid #ad5a13; outline-offset: 5px; border-radius: 2px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.35; word-break: keep-all; overflow-wrap: anywhere; }
.site-header, main, .site-footer { width: min(1120px, calc(100% - 64px)); margin-inline: auto; }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 18px; font-weight: 700; color: var(--ink); text-decoration: none; white-space: nowrap; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; color: white; background: var(--accent); border-radius: 9px; font-size: 22px; }
.site-header nav { display: flex; flex-wrap: wrap; gap: 24px; font-size: 14px; }
.site-header nav a { color: var(--muted); text-decoration: none; }
.site-header nav a:hover { color: var(--accent); text-decoration: underline; }
.site-header nav.lang-switch { gap: 12px; }
.site-header nav.lang-switch a[aria-current] { color: var(--ink, inherit); font-weight: 700; }
.skip-link { position: absolute; top: -100px; left: 16px; padding: 12px; background: white; z-index: 5; }
.skip-link:focus { top: 8px; }
.intro { display: grid; grid-template-columns: 1.65fr 1fr; gap: 64px; padding: 76px 0 54px; align-items: center; }
.intro h1 { font-size: clamp(32px, 4.2vw, 48px); font-weight: 700; letter-spacing: -.055em; margin-bottom: 24px; }
.lead { font-size: 18px; color: var(--muted); line-height: 1.85; margin-bottom: 28px; }
.primary-link { display: inline-block; padding: 11px 20px; color: white; background: var(--accent); border-radius: 7px; font-weight: 600; text-decoration: none; }
.primary-link:hover { background: #12465a; }
.comparison { background: var(--wash); padding: 24px; border-radius: 14px; }
.comparison h2 { font-size: 16px; margin-bottom: 16px; }
.subject { display: grid; grid-template-columns: 30px 1fr; gap: 0 12px; background: var(--accent); color: white; padding: 16px; border-radius: 9px; }
.subject > span { grid-row: span 2; align-self: center; font-size: 14px; opacity: .85; }
.subject strong { font-size: 21px; }
.subject small { opacity: .85; font-size: 13px; }
.baselines { list-style: none; padding: 8px 16px 0; margin: 0; }
.baselines li { display: grid; grid-template-columns: 30px 1fr; gap: 12px; align-items: center; padding: 12px 0; }
.baselines li + li { border-top: 1px solid var(--line); }
.baselines span { color: var(--muted); font-size: 14px; }
.baselines small { display: block; color: var(--muted); font-size: 13px; }
.progress-strip { display: flex; align-items: center; justify-content: space-between; gap: 24px; border-block: 1px solid var(--line); padding: 20px 0; }
.progress-strip p { margin: 0; color: var(--muted); font-size: 14px; }
.progress-strip dl { display: flex; gap: 36px; margin: 0; }
.progress-strip dl div { display: flex; gap: 12px; align-items: baseline; }
.progress-strip dt { font-size: 14px; color: var(--muted); }
.progress-strip dd { margin: 0; font-size: 24px; font-weight: 600; font-variant-numeric: tabular-nums; }
.section { padding-top: 48px; scroll-margin-top: 24px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.section-heading h2, .method h2 { font-size: 25px; letter-spacing: -.035em; margin: 0; }
.section-heading > span, .section-heading > a { font-size: 14px; }
.section-heading > span { color: var(--muted); }
.empty-state { padding: 26px 30px; background: var(--wash); border-left: 4px solid var(--line); border-radius: 0 8px 8px 0; }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; }
.empty-state p { max-width: 720px; color: var(--muted); margin: 0; font-size: 15px; }
.section-intro { color: var(--muted); font-size: 15px; max-width: 760px; margin-bottom: 20px; }
.experiment-row { display: grid; grid-template-columns: 62px 1fr 96px; gap: 22px; padding: 25px 4px; border-top: 1px solid var(--line); align-items: start; }
.experiment-row:last-child { border-bottom: 1px solid var(--line); }
.experiment-id { color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; padding-top: 3px; }
.experiment-description h3 { font-size: 19px; margin-bottom: 7px; letter-spacing: -.015em; }
.experiment-description h3 a { color: var(--ink); text-decoration: none; }
.experiment-description h3 a:hover { color: var(--accent); text-decoration: underline; }
.experiment-description p { font-size: 15px; color: var(--muted); margin: 0; max-width: 670px; word-break: keep-all; overflow-wrap: anywhere; }
.experiment-description p.experiment-result { margin-top: 8px; color: var(--ink); }
.experiment-result strong { color: var(--accent); margin-right: 6px; }
.experiment-summary { margin-top: 10px; max-width: 670px; }
.experiment-summary > summary { cursor: pointer; font-size: 14px; color: var(--accent); }
.experiment-summary .prose { font-size: 15px; color: var(--ink); margin-top: 8px; }
.experiment-summary .prose p { color: var(--ink); line-height: 1.8; margin: 0 0 12px; }
.experiment-summary .prose h3 { font-size: 16px; margin: 16px 0 8px; }
.experiment-summary > a { font-size: 14px; }
.experiment-state { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 9px; font-size: 13px; }
.experiment-state > a { flex-basis: 100%; }
.experiment-state > small { color: var(--muted); }
.status { display: inline-block; padding: 2px 9px; border-radius: 5px; white-space: nowrap; font-size: 13px; font-weight: 600; background: #eaf0f4; color: #4c6173; }
.status-running { background: #fff1cc; color: #755300; }
.status-completed { background: #def1e7; color: #256047; }
.method { display: grid; grid-template-columns: 1fr 1.35fr; gap: 64px; padding-bottom: 64px; }
.method > div p { color: var(--muted); margin-top: 18px; max-width: 350px; }
.method dl { margin: 0; }
.method dl div + div { margin-top: 22px; }
.method dt { font-weight: 700; }
.method dd { margin: 5px 0 0; color: var(--muted); font-size: 15px; }
.published-results { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.published-results article { padding: 26px; border: 1px solid var(--line); border-radius: 9px; }
.published-results h3 { margin: 10px 0; font-size: 20px; }
.published-results p, .published-results small { color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
.site-footer p { margin-bottom: 8px; }
.site-footer p > span { margin-inline: 10px; color: #90a2b1; }
.footer-note { font-size: 12px; }
.report { max-width: 800px; margin-inline: auto; padding: 42px 0 64px; }
.back-link { font-size: 14px; }
.report-header { margin: 30px 0; }
.report-meta { display: flex; gap: 14px; align-items: center; color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.report-header h1 { font-size: clamp(30px, 4vw, 42px); letter-spacing: -.045em; margin-bottom: 16px; }
.report-question { font-size: 19px; color: var(--muted); }
.report-links { display: flex; flex-wrap: wrap; gap: 12px 24px; font-size: 14px; }
.notice { border-left: 4px solid var(--accent); background: var(--tint); padding: 15px 20px; margin: 32px 0; border-radius: 0 6px 6px 0; font-size: 15px; }
.prose { overflow-wrap: anywhere; }
.prose h2 { font-size: 25px; margin: 38px 0 16px; padding-top: 8px; }
.prose h3 { font-size: 20px; margin-top: 28px; }
.prose p, .prose li { line-height: 1.85; }
.prose details.report-section { border-top: 1px solid var(--line); }
.prose details.report-section:last-of-type { border-bottom: 1px solid var(--line); }
.prose details.report-section > summary { cursor: pointer; list-style: none; display: flex; align-items: center; gap: 10px; }
.prose details.report-section > summary::-webkit-details-marker { display: none; }
.prose details.report-section > summary::before { content: "▸"; color: var(--muted); font-size: 18px; transition: transform .15s; }
.prose details.report-section[open] > summary::before { transform: rotate(90deg); }
.prose details.report-section > summary h2 { margin: 18px 0; padding-top: 0; }
.prose details.report-section > :last-child { margin-bottom: 24px; }
.fold-controls { display: flex; gap: 8px; justify-content: flex-end; margin-bottom: 8px; }
.fold-controls button { font: inherit; font-size: 13px; color: var(--muted); background: none; border: 1px solid var(--line); border-radius: 6px; padding: 4px 10px; cursor: pointer; }
.fold-controls button:hover { color: var(--accent); border-color: var(--accent); }
@media print { .fold-controls { display: none; } }
.prose img { max-width: 100%; height: auto; }
.prose table { display: block; overflow-x: auto; border-collapse: collapse; max-width: 100%; font-size: 14px; margin-block: 24px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; min-width: 100px; }
.prose th { background: var(--wash); }
.prose pre { overflow-x: auto; background: var(--wash); padding: 20px; border-radius: 8px; }
.prose code { font-size: .9em; background: var(--wash); padding: .1em .3em; }
.prose blockquote { border-left: 3px solid var(--line); padding-left: 20px; margin-left: 0; color: var(--muted); }
@media (max-width: 800px) {
  .intro { gap: 32px; grid-template-columns: 1.3fr 1fr; padding-top: 48px; }
  .desktop-break { display: none; }
  .lead { font-size: 16px; }
  .comparison { padding: 18px; }
  .method { gap: 32px; }
}
@media (max-width: 620px) {
  .site-header, main, .site-footer { width: calc(100% - 36px); }
  .site-header { flex-wrap: wrap; gap: 16px; padding: 18px 0; }
  .site-header nav { gap: 22px; }
  .intro { grid-template-columns: 1fr; gap: 32px; padding: 36px 0; }
  .intro h1 { font-size: 35px; }
  .comparison { padding: 20px; }
  .progress-strip { align-items: flex-start; flex-direction: column; gap: 12px; }
  .progress-strip dl { width: 100%; justify-content: space-between; gap: 16px; }
  .progress-strip dl div { gap: 8px; }
  .section { padding-top: 36px; }
  .section-heading { flex-wrap: wrap; gap: 6px; }
  .section-heading h2, .method h2 { font-size: 23px; }
  .empty-state { padding: 22px; }
  .experiment-row { grid-template-columns: 1fr auto; gap: 9px 18px; padding: 22px 0; }
  .experiment-id { grid-column: 1; }
  .experiment-description { grid-column: 1 / -1; grid-row: 2; }
  .experiment-state { grid-column: 2; grid-row: 1; justify-content: flex-end; }
  .experiment-state > a { flex-basis: auto; }
  .experiment-description h3 { font-size: 18px; }
  .method, .published-results { grid-template-columns: 1fr; }
  .method { gap: 24px; padding-bottom: 40px; }
  .method > div p { max-width: none; }
  .report { padding-top: 28px; }
  .report-question { font-size: 17px; }
}