:root {
  color-scheme: light;
  --ink: #142134;
  --muted: #536174;
  --paper: #f8f7f2;
  --white: #ffffff;
  --line: #d9dee4;
  --red: #9f2836;
  --yellow: #ffd253;
  --radius: 20px;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-size: 16px; line-height: 1.75; word-break: keep-all; overflow-wrap: anywhere; }
a { color: inherit; text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid #195da5; outline-offset: 5px; border-radius: 4px; }
main:focus { outline: none; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, dl, dd { margin: 0; }
h1, h2, h3 { line-height: 1.35; }
p + p { margin-top: 16px; }
strong { font-weight: 750; }
section[id] { scroll-margin-top: 24px; }
.shell { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: absolute; z-index: 10; top: 12px; left: 12px; padding: 12px 20px; background: var(--white); border: 2px solid var(--ink); border-radius: 8px; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header { background: var(--white); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 104px; padding-block: 18px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; flex-shrink: 0; }
.brand img { width: 56px; height: 56px; object-fit: contain; }
.brand-text { font-size: 24px; font-weight: 850; letter-spacing: -0.04em; }
.brand-text span { display: block; color: var(--muted); font-size: 12px; font-weight: 650; letter-spacing: 0; line-height: 1.5; }
.header-links { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 12px 24px; font-size: 14px; font-weight: 700; }
.header-links a { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; }
.header-links .wallet-link { padding: 8px 20px; border: 1px solid var(--ink); border-radius: 999px; text-decoration: none; }
.wallet-link:hover { background: var(--paper); }

.hero { padding: 58px 0 0; color: var(--white); background: var(--ink); }
.hero a:focus-visible { outline-color: var(--yellow); }
.eyebrow { color: var(--yellow); font-size: 12px; font-weight: 750; letter-spacing: 0.16em; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 64px; align-items: center; margin-top: 28px; }
.policy-date { color: #d5dce6; font-size: 14px; }
h1 { margin-top: 18px; font-size: clamp(40px, 5.9vw, 68px); font-weight: 800; letter-spacing: -0.055em; line-height: 1.15; }
.hero-description { margin-top: 28px; color: #e1e6ed; font-size: 18px; line-height: 1.85; }
.status-note { margin-top: 30px; padding-left: 18px; border-left: 3px solid var(--yellow); }
.status-note strong { font-size: 16px; color: var(--yellow); }
.status-note p { margin-top: 7px; max-width: 490px; color: #d5dce6; font-size: 14px; line-height: 1.8; }
.ratio-card { padding: 30px 32px; color: var(--ink); background: var(--yellow); border-radius: var(--radius); text-align: center; }
.card-kicker { font-size: 13px; font-weight: 750; letter-spacing: 0.035em; }
.ratio { margin-top: 8px; font-size: clamp(68px, 10vw, 108px); font-weight: 850; line-height: 1.15; letter-spacing: -0.075em; }
.ratio span { padding-inline: 12px; font-weight: 500; }
.ratio-meaning { margin-top: 14px; font-size: 17px; line-height: 1.6; }
.ratio-meaning > span { display: inline-block; padding-block: 3px; font-size: 22px; }
.ratio-condition { margin-top: 20px; padding-top: 18px; border-top: 1px solid #ac8b30; font-size: 14px; font-weight: 650; }
.ratio-caption { margin-top: 10px; font-size: 12px; line-height: 1.7; }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: 52px; padding-block: 26px; border-top: 1px solid #465369; }
.principles > div + div { padding-left: 28px; border-left: 1px solid #465369; }
.principles dt { color: #c2ccda; font-size: 12px; }
.principles dd { margin-top: 4px; font-size: 16px; font-weight: 700; }

.policy-body { padding-top: 28px; padding-bottom: 64px; }
.section-nav { display: flex; flex-wrap: wrap; gap: 8px 12px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.section-nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; background: var(--white); color: #34445b; font-size: 13px; font-weight: 650; text-decoration: none; }
.section-nav a:hover { border-color: var(--ink); }
.policy-section { margin-top: 60px; }
.section-heading { display: flex; align-items: flex-start; gap: 20px; margin-bottom: 26px; }
.section-number { width: 46px; flex: 0 0 46px; margin-top: 4px; padding-top: 4px; border-top: 3px solid var(--red); color: var(--red); font-size: 18px; font-weight: 800; line-height: 1.6; }
.section-kicker { margin-bottom: 8px; color: var(--red); font-size: 13px; font-weight: 750; }
h2 { font-size: clamp(23px, 2.6vw, 29px); font-weight: 780; letter-spacing: -0.035em; }
h3 { margin-bottom: 16px; font-size: 18px; font-weight: 750; letter-spacing: -0.02em; }
.two-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.content-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.content-card > p { color: #415168; font-size: 15px; }
.content-card strong { color: var(--ink); }
.inset-note { padding: 16px 18px; border-left: 3px solid #b8c2d0; background: #f2f5f8; border-radius: 0 10px 10px 0; font-size: 13px !important; line-height: 1.85; }
.plain-list { display: grid; gap: 12px; margin: 0; padding-left: 20px; color: #415168; font-size: 15px; }
.plain-list li { padding-left: 4px; }
.plain-list li::marker { color: var(--red); }
.preservation-note { margin-top: 20px; padding: 24px 30px; border: 1px solid #e4d8b4; border-radius: 14px; background: #fff6df; }
.preservation-note h3 { margin-bottom: 8px; font-size: 16px; }
.preservation-note p { font-size: 14px; color: #594c32; }
.timing-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.2fr); gap: 20px; }
.timing-card { padding: 32px; border-radius: var(--radius); background: #e8edf3; }
.timing-card h3 { margin-top: 18px; margin-bottom: 20px; font-size: clamp(24px, 3vw, 32px); letter-spacing: -0.045em; }
.timing-card h3 span { color: var(--red); font-size: 0.8em; }
.timing-card > p:not(.card-kicker) { color: #415168; font-size: 15px; }
.small-copy { font-size: 13px !important; line-height: 1.8; }
.prerequisites .small-copy { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line); }
.section-footnote { margin-top: 20px; padding-left: 4px; color: var(--muted); font-size: 14px; }
.residual-card { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.5fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--white); }
.precision-block { padding: 34px 30px; background: #f4ead7; }
.precision-value { margin-top: 18px; margin-bottom: 22px; font-size: 24px; font-weight: 650; line-height: 1.2; letter-spacing: -0.04em; }
.precision-value strong { display: inline-block; margin-inline: 3px; color: var(--red); font-size: 64px; font-weight: 850; vertical-align: -0.04em; }
.precision-block > p:last-child { color: #5f5038; font-size: 13px; }
.residual-copy { padding: 32px; }
.residual-copy > p { color: #415168; font-size: 15px; }
.continuity-card { display: flex; align-items: center; justify-content: space-between; gap: 32px; margin-top: 60px; padding: 32px; border: 1px solid #c6cdd7; border-radius: var(--radius); background: #edf0f4; }
.continuity-card > div { max-width: 680px; }
.continuity-card h2 { font-size: 22px; }
.continuity-card p:not(.section-kicker) { margin-top: 14px; color: #415168; font-size: 14px; }
.return-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 48px; flex-shrink: 0; padding: 10px 18px; border: 1px solid var(--ink); border-radius: 9px; font-size: 13px; font-weight: 750; text-decoration: none; }
.return-link:hover { background: var(--white); }
.english-section { padding-top: 44px; border-top: 1px solid var(--line); word-break: normal; }
.english-intro { margin-bottom: 22px; color: #415168; font-size: 15px; }
.english-summary { border-top: 1px solid var(--line); }
.english-summary > div { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 30px; padding-block: 24px; border-bottom: 1px solid var(--line); }
.english-summary dt { font-size: 14px; font-weight: 750; }
.english-summary dd { color: #415168; font-size: 14px; line-height: 1.85; }

.site-footer { padding-block: 30px; color: #d5dce6; background: var(--ink); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-inner strong { color: var(--white); font-size: 24px; letter-spacing: -0.04em; }
.footer-inner p { margin-top: 4px; font-size: 12px; }
.policy-reference { text-align: right; }
.policy-reference span { font-size: 10px; letter-spacing: 0.035em; }

@media (max-width: 800px) {
  .hero-grid { gap: 28px; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); }
  .ratio-card { padding: 26px 22px; }
  .wide-only { display: none; }
  .hero-description { font-size: 16px; }
  .content-card, .timing-card, .residual-copy { padding: 24px; }
  .timing-grid { grid-template-columns: minmax(0, 1fr); }
  .continuity-card { align-items: flex-start; flex-direction: column; gap: 24px; }
  .english-summary > div { grid-template-columns: 150px minmax(0, 1fr); gap: 24px; }
}

@media (max-width: 600px) {
  .shell { width: calc(100% - 32px); }
  .header-inner { align-items: flex-start; gap: 14px; min-height: 0; padding-block: 16px; }
  .brand { gap: 8px; }
  .brand img { width: 44px; height: 44px; }
  .brand-text { font-size: 21px; }
  .brand-text span { font-size: 10px; }
  .header-links { gap: 2px; font-size: 11px; }
  .header-links a { min-height: 44px; }
  .header-links .wallet-link { padding: 6px 14px; }
  .hero { padding-top: 34px; }
  .eyebrow { font-size: 10px; letter-spacing: 0.12em; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; margin-top: 22px; }
  h1 { font-size: clamp(40px, 11.5vw, 60px); }
  .hero-description { margin-top: 24px; }
  .status-note { margin-top: 24px; }
  .ratio-card { padding: 26px 24px; }
  .ratio { font-size: 88px; }
  .principles { grid-template-columns: minmax(0, 1fr); gap: 0; margin-top: 30px; padding-block: 8px; }
  .principles > div { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 16px; padding-block: 13px; }
  .principles > div + div { padding-left: 0; border-left: 0; border-top: 1px solid #465369; }
  .principles dd { margin-top: 0; font-size: 14px; }
  .policy-body { padding-top: 20px; padding-bottom: 44px; }
  .section-nav { gap: 8px; padding-bottom: 20px; }
  .section-nav a { padding-inline: 12px; font-size: 12px; }
  .policy-section { margin-top: 42px; }
  .section-heading { gap: 14px; margin-bottom: 20px; }
  .section-number { width: 32px; flex-basis: 32px; font-size: 15px; }
  h2 { font-size: 23px; }
  .two-columns, .residual-card { grid-template-columns: minmax(0, 1fr); }
  .content-card, .timing-card, .residual-copy, .precision-block { padding: 24px 22px; }
  .preservation-note { padding: 22px; }
  .precision-block { border-bottom: 1px solid #e4d8bd; }
  .precision-value { margin-top: 12px; margin-bottom: 16px; }
  .continuity-card { margin-top: 42px; padding: 24px 22px; }
  .continuity-card h2 { font-size: 21px; }
  .return-link { width: 100%; }
  .english-section { padding-top: 32px; }
  .english-summary > div { grid-template-columns: minmax(0, 1fr); gap: 10px; padding-block: 20px; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 18px; }
  .policy-reference { text-align: left; }
}

@media print {
  body { background: var(--white); color: #000; font-size: 11pt; }
  .shell { width: 100%; }
  .site-header, .section-nav, .return-link, .skip-link { display: none; }
  .hero { padding-top: 0; color: #000; background: var(--white); }
  .hero-grid { gap: 24px; }
  .hero p, .status-note strong, .principles dt { color: #000; }
  .hero-description { margin-top: 18px; }
  h1 { font-size: 32pt; }
  h2 { font-size: 17pt; }
  .ratio-card, .timing-card, .precision-block, .continuity-card, .preservation-note, .inset-note { background: var(--white); }
  .ratio-card, .status-note, .principles, .principles > div + div { border-color: #777; }
  .ratio { font-size: 48pt; }
  .principles { margin-top: 24px; }
  .policy-section, .continuity-card { margin-top: 28px; }
  .content-card, .timing-card, .residual-copy, .precision-block { padding: 18px; }
  .content-card, .timing-card, .preservation-note, .residual-card { break-inside: avoid; }
  .site-footer { color: #000; background: var(--white); border-top: 1px solid #777; }
  .footer-inner strong { color: #000; }
}