:root {
  color-scheme: light;
  --ink: #17253d;
  --muted: #617087;
  --ink-soft: #617087;
  --blue: #2563eb;
  --accent: #2563eb;
  --sky: #eaf2ff;
  --line: #e2e8f0;
  --paper: #ffffff;
  --card: #ffffff;
  --canvas: #f4f7fb;
  --bg: #f4f7fb;
  --gold: #d89019;
  --red: #c2413b;
  --green: #147d64;
}

html.dark {
  color-scheme: dark;
  --ink: #e7edf7;
  --muted: #a7b4c7;
  --ink-soft: #a7b4c7;
  --blue: #82b2ff;
  --accent: #82b2ff;
  --sky: #172b46;
  --line: #344257;
  --paper: #111c2c;
  --card: #111c2c;
  --canvas: #0b1422;
  --bg: #0b1422;
  --gold: #efbd69;
  --red: #f08b7c;
  --green: #55bd9b;
}

*, *::before, *::after { box-sizing: border-box; }
html { min-height: 100%; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--canvas);
  color: #263449;
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
  font-size: 15.5px;
  line-height: 1.85;
  letter-spacing: -.01em;
  -webkit-font-smoothing: antialiased;
}
html.dark body { color: var(--ink); }
a { color: #1458b8; text-decoration: underline; text-underline-offset: 3px; }
html.dark a { color: #9cc5ff; }
.mono { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-variant-numeric: tabular-nums; }

.topbar {
  position: relative;
  z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 14px 20px;
}
.topbar-inner {
  max-width: 940px;
  min-height: 28px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo { color: var(--ink); font-size: 18px; font-weight: 800; text-decoration: none; letter-spacing: -.04em; }
.logo b { color: var(--blue); }
.back { margin-left: auto; color: var(--muted); font-size: 13px; text-decoration: none; white-space: nowrap; }
.back:hover { color: var(--blue); }
.topbar .toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--muted);
  font: 500 12px/1.2 'Noto Sans KR', sans-serif;
  cursor: pointer;
  white-space: nowrap;
}
.topbar .toggle:hover { border-color: var(--blue); color: var(--blue); }

.hero {
  background: linear-gradient(135deg, #11243e 0%, #183b65 60%, #2266a2 100%);
  color: #fff;
  padding: 58px 22px 52px;
}
.hero-inner { max-width: 940px; margin: 0 auto; }
.hero .eyebrow {
  display: inline-block;
  margin: 0 8px 0 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #b9d8ff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.2px;
  line-height: 1.6;
  text-transform: uppercase;
}
.hero .eyebrow.alt { color: #d6e7fa; }
.hero h1 {
  max-width: 820px;
  margin: 13px 0 14px;
  color: #fff;
  font-family: 'Noto Serif KR', Georgia, serif;
  font-size: clamp(28px, 4.5vw, 40px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.04em;
  word-break: keep-all;
}
.hero .dek {
  max-width: 760px;
  margin: 0;
  color: #dce9f8;
  font-size: 16px;
  line-height: 1.75;
  word-break: keep-all;
}
.hero .stamp {
  margin: 22px 0 0;
  padding: 0;
  border: 0;
  color: #b9cbe0;
  font-size: 13px;
  line-height: 1.6;
}

main.wrap {
  width: 100%;
  max-width: 940px;
  margin: -22px auto 0;
  padding: 0 18px 70px;
}
.metrics {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.metrics .num {
  min-width: 0;
  padding: 19px 16px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--paper);
  box-shadow: 0 5px 18px rgb(12 36 64 / 4%);
}
.metrics .num .k { color: var(--muted); font-size: 12px; line-height: 1.5; }
.metrics .num .v { display: block; margin-top: 4px; color: var(--ink); font-size: clamp(19px, 2.3vw, 25px); font-weight: 800; line-height: 1.25; letter-spacing: -.04em; overflow-wrap: normal; word-break: keep-all; white-space: nowrap; }
.metrics .num .d { display: block; margin-top: 7px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.metrics .num .d.up, .metrics .num .d.down { color: var(--muted); }
.metrics:has(> .num:nth-child(5):last-child) { grid-template-columns: repeat(5, minmax(0, 1fr)); }

article.article {
  max-width: 800px;
  margin: 28px auto 0;
  padding: 38px 42px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  color: #263449;
  box-shadow: 0 8px 28px rgb(12 36 64 / 3%);
  font-size: 15.5px;
  line-height: 1.95;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
html.dark article.article { color: var(--ink); }
.article > p { margin: 0 0 18px; }
.article h2 {
  margin: 48px 0 16px;
  padding: 0 0 12px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-family: 'Noto Serif KR', Georgia, serif;
  font-size: 25px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -.03em;
  word-break: keep-all;
}
.article h3 { margin: 28px 0 10px; color: var(--ink); font-size: 18px; line-height: 1.5; }
.article b, .article strong { color: var(--ink); }
.article ul, .article ol { padding-left: 1.4em; }
.article li { margin: 9px 0; padding-left: 3px; }
.article li::marker { color: var(--blue); font-weight: 700; }
.article .brief { margin: 18px 0 30px; padding-left: 1.6em; }
.article .brief li { margin: 0 0 19px; padding-left: 5px; }
.article ol.brief { padding-left: 0; }
.article ol.brief > li { padding-left: 40px; }
.article .brief h2 { margin: 0 0 5px; padding: 0; border: 0; font-family: 'Noto Sans KR', sans-serif; font-size: 17px; line-height: 1.6; }
.article .when { display: inline-block; margin-right: 7px; color: var(--blue); font-size: 12px; font-weight: 700; }
.article .close, .article .callout {
  margin: 26px 0;
  padding: 20px 22px;
  border: 0;
  border-left: 4px solid var(--blue);
  border-radius: 0 10px 10px 0;
  background: var(--sky);
  color: var(--ink);
}
.article .close p:last-child, .article .callout p:last-child { margin-bottom: 0; }
.article .lab { margin: 0 0 8px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .05em; }
.article .pts { margin: 12px 0; }
.article .table-wrap { max-width: 100%; margin: 22px 0 12px; overflow: auto; border: 1px solid var(--line); border-radius: 10px; }
.article table { width: 100%; min-width: 560px; border-collapse: collapse; background: var(--paper); font-size: 13px; line-height: 1.6; }
.article th { background: #f2f6fb; color: #334761; text-align: left; font-weight: 700; }
html.dark .article th { background: #1a2a40; color: var(--ink); }
.article th, .article td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.article tbody tr:last-child td { border-bottom: 0; }
.article tr.mark td { background: #f7faff; }
html.dark .article tr.mark td { background: #16263b; }
.article .num-c { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.article .chart-box, .article figure { margin: 24px 0; padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); }
.article .chart-head { color: var(--ink); font-weight: 700; }
.article .chart-sub, .article figcaption { color: var(--muted); font-size: 12px; line-height: 1.7; }
.article .chart-canvas { position: relative; min-height: 260px; }
.article img, .article canvas, .article svg { max-width: 100%; }
.article img { height: auto; border-radius: 10px; }
.article .src { margin-top: 42px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; line-height: 1.75; }
.article .src > b { color: var(--ink); }
.article .disc { margin-top: 22px; padding: 15px 17px; border: 1px solid var(--line); border-radius: 10px; background: #f6f8fb; color: var(--muted); font-size: 12px; line-height: 1.75; }
html.dark .article .disc { background: #162234; }
.article .foot { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; }
.article .foot a { color: var(--muted); text-decoration: none; }
.article .foot a:hover { color: var(--blue); }

@media (max-width: 720px) {
  .hero { padding: 48px 20px 42px; }
  .hero h1 { font-size: clamp(25px, 6vw, 30px); }
  main.wrap { padding: 0 14px 48px; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
  .metrics:has(> .num:nth-child(5):last-child) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metrics .num .v { font-size: clamp(16px, 4.5vw, 20px); }
  .metrics .num { padding: 15px 13px; }
  article.article { padding: 24px 18px; font-size: 15px; }
  .article ol.brief > li { padding-left: 32px; }
  .article h2 { font-size: 22px; }
  .topbar { padding: 12px 15px; }
  .topbar-inner { gap: 10px; }
  .back { font-size: 12px; }
  .topbar .toggle { padding: 6px 8px; font-size: 11px; }
}

@media (max-width: 390px) {
  .logo { font-size: 16px; }
  .back { white-space: normal; text-align: right; }
  .topbar .toggle span:last-child { display: none; }
  .article table { min-width: 500px; }
}