:root {
  color-scheme: light;
  --canvas: #f7f8fc;
  --surface: #ffffff;
  --ink: #141a2e;
  --muted: #5b6178;
  --line: #d9dded;
  --accent: #ffd24a;
  --accent-dark: #0f1f4d;
  --soft: #eef1fa;
  --focus: #0a66c2;
  --max: 920px;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-dark); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }

.skip {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 30;
  padding: 8px 12px;
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
  transform: translateY(-160%);
}
.skip:focus { transform: translateY(0); }

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 60px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px max(20px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(247, 248, 252, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.brand { color: var(--ink); font-weight: 700; text-decoration: none; }
.nav-links { display: flex; gap: 18px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 14px; font-weight: 600; text-decoration: none; }
.nav-links a[aria-current="page"], .nav-links a:hover { color: var(--accent-dark); }

main { max-width: var(--max); margin: 0 auto; padding: 72px 24px 104px; }
.hero { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 28px; align-items: center; }
.app-icon { width: 112px; height: 112px; border-radius: 24px; box-shadow: 0 12px 30px rgba(15, 31, 77, 0.16); }
.eyebrow { margin: 0 0 8px; color: var(--accent-dark); font-size: 13px; font-weight: 700; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.2; text-wrap: balance; }
h1 { font-size: 44px; }
h2 { font-size: 28px; }
h3 { font-size: 20px; }
.lede { max-width: 700px; margin: 14px 0 0; color: var(--muted); font-size: 18px; }
.updated { margin: 10px 0 0; color: var(--muted); font-size: 14px; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}
.button.secondary { border-color: var(--line); background: var(--surface); color: var(--ink); }
.button:hover { background: #000; text-decoration: none; }
.button.secondary:hover { border-color: var(--ink); background: var(--surface); }

.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 48px 0 0; border-block: 1px solid var(--line); }
.fact { padding: 18px 20px; }
.fact + .fact { border-left: 1px solid var(--line); }
.fact dt { color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; }
.fact dd { margin: 5px 0 0; font-weight: 650; }

.language-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 48px; }
.language-nav a { padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--ink); font-size: 14px; text-decoration: none; }
.language-nav a:hover { border-color: var(--accent); color: var(--accent-dark); }

.language-section { margin-top: 64px; padding-top: 56px; border-top: 1px solid var(--line); }
.language-section:first-of-type { margin-top: 48px; }
.section-label { margin: 0 0 8px; color: var(--accent-dark); font-size: 13px; font-weight: 700; }
.language-section h3 { margin-top: 36px; }
.language-section p { margin: 12px 0 0; color: #2f3448; }
.language-section ul { margin: 12px 0 0; padding-left: 22px; }
.language-section li + li { margin-top: 7px; }
.support-list { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 10px 18px; margin-top: 20px; }
.support-list dt { color: var(--muted); font-weight: 650; }
.support-list dd { margin: 0; }
.notice { margin-top: 24px; padding: 16px 18px; border-left: 3px solid var(--accent); background: var(--soft); }

.table-wrap { margin-top: 20px; overflow-x: auto; }
.odds-table { width: 100%; min-width: 460px; border-collapse: collapse; font-size: 15px; }
.odds-table caption { margin-bottom: 10px; color: var(--muted); font-size: 14px; text-align: left; }
.odds-table th, .odds-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.odds-table thead th { border-bottom: 1px solid var(--ink); color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; }
.odds-table tbody th { font-weight: 650; }
.odds-table .num { text-align: right; font-variant-numeric: tabular-nums; }

footer { border-top: 1px solid var(--line); padding: 26px 24px; color: var(--muted); font-size: 13px; }
.footer-inner { max-width: var(--max); margin: 0 auto; display: flex; flex-wrap: wrap; gap: 16px; }
.footer-inner a { margin-left: auto; color: var(--muted); }

@media (max-width: 680px) {
  main { padding: 48px 20px 80px; }
  .hero { grid-template-columns: 80px minmax(0, 1fr); gap: 18px; }
  .app-icon { width: 80px; height: 80px; border-radius: 18px; }
  h1 { font-size: 34px; }
  .lede { font-size: 16px; }
  .facts { grid-template-columns: 1fr; }
  .fact + .fact { border-top: 1px solid var(--line); border-left: 0; }
  .support-list { grid-template-columns: 1fr; gap: 2px; }
  .support-list dd + dt { margin-top: 10px; }
  .footer-inner a { margin-left: 0; }
}

@media (max-width: 430px) {
  .nav { padding-inline: 16px; }
  .nav-links { gap: 12px; }
  .hero { grid-template-columns: 1fr; }
  h1 { font-size: 31px; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }