:root {
  color-scheme: light dark;
  font-family: Inter, Pretendard, "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #f5f7f7;
  --surface: #ffffff;
  --text: #151918;
  --muted: #66706d;
  --line: #dfe6e3;
  --brand: #6ddf34;
  --brand-ink: #16340c;
  --max: 860px;
  --hub-max: 1120px;
  --ink: #101513;
  --paper: #f2f1e9;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.65; }
a { color: inherit; text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; border-radius: 4px; }
.topbar { background: #101513; color: #f7fbf8; }
.topbar-inner { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; padding: 18px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { font-weight: 800; text-decoration: none; letter-spacing: -.02em; }
.brand span { color: var(--brand); }
.site-nav { display: flex; flex-wrap: wrap; gap: 14px; font-size: 14px; color: #cbd5d0; }
main { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; padding: 48px 0 80px; }
.hero { margin-bottom: 24px; }
.eyebrow { color: #3d7e23; font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: 8px 0 12px; font-size: clamp(32px, 6vw, 48px); line-height: 1.12; letter-spacing: -.04em; }
.lede { max-width: 680px; color: var(--muted); font-size: 17px; }
.language-nav { position: sticky; top: 0; z-index: 2; display: flex; overflow-x: auto; gap: 8px; padding: 12px; margin: 24px 0; border: 1px solid var(--line); border-radius: 16px; background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: blur(12px); }
.language-nav a { flex: none; padding: 8px 12px; border-radius: 999px; background: var(--bg); text-decoration: none; font-size: 14px; font-weight: 700; }
.language-nav a:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; }
.locale { scroll-margin-top: 84px; padding: 28px; margin-top: 18px; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); }
.locale h2 { margin: 0 0 8px; font-size: 25px; letter-spacing: -.025em; }
.locale h3 { margin: 26px 0 6px; font-size: 17px; }
.locale p, .locale ul { margin: 8px 0; color: var(--muted); }
.locale strong { color: var(--text); }
.notice { padding: 14px 16px; border-left: 4px solid var(--brand); border-radius: 8px; background: color-mix(in srgb, var(--brand) 12%, var(--surface)); color: var(--brand-ink); }
.source-list { padding-left: 20px; }
footer { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; padding: 0 0 40px; color: var(--muted); font-size: 13px; }

/* CoinMadang product hub */
.hub-page { background: var(--paper); }
.hub-topbar { border-bottom: 1px solid rgba(255,255,255,.1); }
.hub-topbar .topbar-inner { width: min(calc(100% - 40px), var(--hub-max)); padding: 16px 0; }
.hub-topbar .brand { min-height: 44px; display: inline-flex; align-items: center; gap: 8px; font-size: 18px; }
.hub-topbar .brand small { color: #9ca7a2; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.hub-nav-wrap { display: flex; align-items: center; justify-content: flex-end; gap: 18px; }
.hub-nav-wrap .site-nav a { min-height: 44px; display: inline-flex; align-items: center; text-decoration: none; }
.locale-switcher { display: flex; align-items: center; gap: 4px; padding-left: 16px; border-left: 1px solid rgba(255,255,255,.15); }
.locale-switcher a { display: inline-flex; min-width: 44px; min-height: 44px; align-items: center; justify-content: center; border-radius: 999px; color: #aeb9b4; font-size: 12px; font-weight: 800; text-decoration: none; }
.locale-switcher a:hover { color: #fff; background: rgba(255,255,255,.08); }
.locale-switcher a[aria-current="page"] { color: #10200b; background: var(--brand); }

.hub-main { width: 100%; max-width: none; margin: 0; padding: 0; }
.product-hero { overflow: hidden; position: relative; background: var(--ink); color: #f7fbf8; }
.product-hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at 82% 22%, rgba(109,223,52,.16), transparent 28%), linear-gradient(115deg, transparent 58%, rgba(255,255,255,.035) 58% 58.3%, transparent 58.3%); }
.product-hero-inner { width: min(calc(100% - 40px), var(--hub-max)); min-height: 590px; margin: 0 auto; padding: 86px 0 82px; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr); align-items: center; gap: 76px; position: relative; }
.product-kicker { margin: 0 0 20px; color: #b9c5bf; font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.product-hero h1 { max-width: 680px; margin: 0; font-size: clamp(46px, 6.3vw, 78px); line-height: .99; letter-spacing: -.055em; }
.product-hero .lede { max-width: 620px; margin: 28px 0 0; color: #b7c2bd; font-size: clamp(17px, 2vw, 20px); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 12px 18px; border: 1px solid transparent; border-radius: 999px; font-size: 14px; font-weight: 800; text-decoration: none; transition: transform .18s ease, background-color .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--brand); color: #10200b; }
.button-secondary { border-color: #46504c; color: #f7fbf8; background: #171d1a; }
.button-secondary:hover { border-color: #75827c; background: #202824; }
.button .arrow { font-size: 18px; line-height: 1; }

.data-field { position: relative; min-height: 390px; padding: 26px 0 0 30px; border-left: 1px solid #39423e; }
.data-field::after { content: ""; position: absolute; left: -4px; top: 24px; width: 7px; height: 7px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 7px rgba(109,223,52,.12); }
.data-field-label { margin-bottom: 34px; color: #7f8c86; font-size: 11px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.signal-list { display: grid; gap: 22px; }
.signal-row { display: grid; grid-template-columns: 88px 1fr 54px; align-items: center; gap: 14px; color: #dce5e0; font-size: 12px; font-weight: 800; letter-spacing: .07em; }
.signal-track { height: 2px; overflow: hidden; background: #303936; }
.signal-track span { display: block; width: var(--signal); height: 100%; background: var(--brand); transform-origin: left; animation: signal-in .8s ease-out both; }
.signal-row:nth-child(2) .signal-track span { animation-delay: .08s; }
.signal-row:nth-child(3) .signal-track span { animation-delay: .16s; }
.signal-row:nth-child(4) .signal-track span { animation-delay: .24s; }
.signal-row:nth-child(5) .signal-track span { animation-delay: .32s; }
.signal-state { color: #829087; text-align: right; }
.data-field-note { margin: 32px 0 0; color: #839089; font-size: 12px; line-height: 1.6; }

.hub-section { width: min(calc(100% - 40px), var(--hub-max)); margin: 0 auto; padding: 92px 0; }
.section-heading { display: grid; grid-template-columns: minmax(180px,.38fr) minmax(0,.62fr); gap: 54px; align-items: start; margin-bottom: 48px; }
.section-index { color: #58744c; font-size: 12px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.section-heading h2 { margin: -8px 0 0; font-size: clamp(32px, 4.5vw, 52px); line-height: 1.08; letter-spacing: -.045em; }
.section-heading p { grid-column: 2; max-width: 680px; margin: -26px 0 0; color: var(--muted); font-size: 17px; }
.feature-list { border-top: 1px solid #cfd5cf; }
.feature-item { display: grid; grid-template-columns: 52px minmax(180px,.46fr) minmax(0,.54fr); gap: 24px; padding: 28px 0; border-bottom: 1px solid #cfd5cf; }
.feature-number { color: #6a756f; font-variant-numeric: tabular-nums; font-size: 12px; font-weight: 800; }
.feature-item h3 { margin: -4px 0 0; font-size: 21px; letter-spacing: -.025em; }
.feature-item p { margin: 0; color: var(--muted); }

.trust-band { background: #dcebd5; color: #152014; }
.trust-band .hub-section { padding-top: 86px; padding-bottom: 86px; }
.trust-band .section-index { color: #47643b; }
.trust-band .section-heading p, .trust-band .principle-item p { color: #52604e; }
.principle-list { display: grid; grid-template-columns: repeat(3,1fr); gap: 0; border-top: 1px solid rgba(21,32,20,.22); }
.principle-item { min-height: 220px; padding: 30px 28px 18px 0; border-bottom: 1px solid rgba(21,32,20,.22); }
.principle-item + .principle-item { padding-left: 28px; border-left: 1px solid rgba(21,32,20,.22); }
.principle-item strong { display: block; margin-bottom: 14px; font-size: 18px; letter-spacing: -.02em; }
.principle-item p { margin: 0; }

.relationship-grid { display: grid; grid-template-columns: minmax(0,.56fr) minmax(280px,.44fr); gap: 80px; align-items: start; }
.relationship-copy h2 { margin: 0 0 24px; font-size: clamp(34px,4.6vw,56px); line-height: 1.05; letter-spacing: -.045em; }
.relationship-copy p { max-width: 660px; color: var(--muted); font-size: 17px; }
.relationship-note { padding: 28px 0; border-top: 2px solid var(--text); border-bottom: 1px solid #cfd5cf; }
.relationship-note strong { display: block; margin-bottom: 12px; }
.relationship-note p { margin: 0; color: var(--muted); }

.policy-links-hub { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 64px; border-top: 1px solid #cfd5cf; }
.policy-links-hub a { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px 14px 0; border-bottom: 1px solid #cfd5cf; color: var(--text); font-weight: 760; text-decoration: none; }
.policy-links-hub a:nth-child(3n+2), .policy-links-hub a:nth-child(3n+3) { padding-left: 18px; border-left: 1px solid #cfd5cf; }
.policy-links-hub a:hover { color: #376d21; }

.hub-footer { width: 100%; padding: 0; background: var(--ink); color: #f7fbf8; }
.hub-footer-inner { width: min(calc(100% - 40px), var(--hub-max)); margin: 0 auto; padding: 34px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.hub-footer small { color: #9eaaa4; }
.hub-footer a { min-height: 44px; display: inline-flex; align-items: center; color: #d8e2dd; }

@keyframes signal-in { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (prefers-color-scheme: dark) {
  :root { --bg: #0d1110; --surface: #151a18; --text: #f2f6f3; --muted: #a6b0ac; --line: #2b3430; --brand-ink: #d9ffd0; }
  .hub-page { --paper: #0d1110; }
  .feature-list, .feature-item, .policy-links-hub, .policy-links-hub a, .relationship-note { border-color: #313b36; }
  .section-index, .policy-links-hub a:hover { color: #91ce74; }
  .feature-number { color: #9eaaa4; }
  .trust-band { background: #172317; color: #f2f6f3; }
  .trust-band .section-index { color: #91ce74; }
  .trust-band .section-heading p, .trust-band .principle-item p { color: #aebaaa; }
  .trust-band .principle-list, .trust-band .principle-item { border-color: #41513f; }
}
@media (max-width: 900px) {
  .hub-topbar .topbar-inner { align-items: flex-start; flex-direction: column; }
  .hub-nav-wrap { width: 100%; justify-content: space-between; }
  .product-hero-inner { grid-template-columns: 1fr; gap: 58px; padding-top: 68px; }
  .data-field { min-height: 300px; max-width: 640px; }
  .section-heading { grid-template-columns: 1fr; gap: 20px; }
  .section-heading p { grid-column: auto; margin: 0; }
  .relationship-grid { grid-template-columns: 1fr; gap: 52px; }
}
@media (max-width: 620px) {
  .topbar-inner { align-items: flex-start; flex-direction: column; }
  main { padding-top: 34px; }
  .locale { padding: 22px 18px; border-radius: 18px; }
  .hub-topbar .topbar-inner, .product-hero-inner, .hub-section, .hub-footer-inner { width: min(calc(100% - 32px), var(--hub-max)); }
  .hub-nav-wrap { align-items: flex-start; flex-direction: column; gap: 4px; }
  .hub-nav-wrap .site-nav { gap: 12px; }
  .locale-switcher { width: 100%; padding: 6px 0 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.12); }
  .locale-switcher a { flex: 1; }
  .product-hero-inner { min-height: 0; padding: 58px 0 62px; gap: 48px; }
  .product-hero h1 { font-size: clamp(42px,13.5vw,58px); }
  .product-hero .lede { font-size: 17px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .data-field { min-height: 280px; padding-left: 22px; }
  .signal-row { grid-template-columns: 84px 1fr 44px; gap: 10px; }
  .hub-section { padding: 68px 0; }
  .section-heading { margin-bottom: 34px; }
  .section-heading h2 { font-size: 36px; }
  .feature-item { grid-template-columns: 34px 1fr; gap: 12px; padding: 24px 0; }
  .feature-item p { grid-column: 2; }
  .principle-list { grid-template-columns: 1fr; }
  .principle-item { min-height: 0; padding: 24px 0; }
  .principle-item + .principle-item { padding-left: 0; border-left: 0; }
  .policy-links-hub { grid-template-columns: 1fr; }
  .policy-links-hub a, .policy-links-hub a:nth-child(3n+2), .policy-links-hub a:nth-child(3n+3) { padding-left: 0; border-left: 0; }
  .hub-footer-inner { align-items: flex-start; flex-direction: column; gap: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}