:root {
  --ink: #071d2a;
  --ink-2: #123443;
  --paper: #f5f1e8;
  --paper-2: #e9e2d4;
  --gold: #b5944d;
  --gold-dark: #765c24;
  --gold-light: #ddc789;
  --green: #5e736b;
  --green-dark: #435c54;
  --white: #fffdf6;
  --text: #172226;
  --muted: #65716e;
  --line: rgba(7, 29, 42, .16);
  --serif: "Noto Serif KR", Georgia, serif;
  --sans: "Noto Sans KR", Arial, sans-serif;
  --mono: "DM Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--text); font-family: var(--sans); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { max-width: 100%; }
.skip-link { position: fixed; z-index: 20; top: 8px; left: 8px; padding: 10px 14px; background: var(--white); color: var(--ink); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--gold-light); outline-offset: 3px; }
.wrap { width: min(1180px, calc(100% - 56px)); margin: 0 auto; }
.eyebrow { color: var(--gold-dark); font: 500 11px/1.3 var(--mono); text-transform: uppercase; }
.eyebrow.on-dark { color: var(--gold-light); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border: 1px solid transparent; font-size: 13px; font-weight: 700; transition: background .2s ease, color .2s ease, border-color .2s ease; }
.button.primary { background: var(--gold); border-color: var(--gold); color: var(--ink); }
.button.primary:hover { background: var(--gold-light); border-color: var(--gold-light); }
.button.outline { border-color: rgba(255,255,255,.64); color: var(--white); }
.button.outline:hover { background: rgba(255,255,255,.1); }
.text-link { display: inline-flex; gap: 9px; align-items: center; margin-top: 28px; padding-bottom: 4px; border-bottom: 1px solid var(--gold); color: var(--gold-dark); font-size: 13px; font-weight: 700; }
.text-link.on-dark { color: var(--white); border-color: var(--gold-light); }
.hero { position: relative; min-height: 790px; overflow: hidden; background: var(--ink); color: var(--white); }
.hero-image { position: absolute; inset: 0; background: url("assets/paradox-oak-hero.png") center / cover no-repeat; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,18,28,.98) 0%, rgba(4,18,28,.91) 43%, rgba(4,18,28,.31) 76%, rgba(4,18,28,.14)); }
.nav { position: relative; z-index: 3; display: flex; height: 86px; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.2); }
.brand { display: inline-flex; align-items: center; line-height: 0; }
.brand-logo { display: block; width: 146px; max-height: 46px; }
.nav-right, .nav-links { display: flex; align-items: center; }
.nav-right { gap: 25px; }
.nav-links { gap: 21px; color: rgba(255,255,255,.82); font-size: 12px; }
.nav-links a:hover { color: var(--gold-light); }
.nav-cta { display: inline-flex; min-height: 40px; align-items: center; padding: 0 16px; background: var(--gold); color: var(--ink); font-size: 13px; font-weight: 700; }
.menu { display: none; width: 42px; height: 42px; border: 0; background: transparent; color: var(--white); font-size: 23px; cursor: pointer; }
.mobile-nav { display: none; position: absolute; z-index: 5; top: 70px; left: 20px; right: 20px; padding: 12px 18px; background: rgba(7,29,42,.99); border: 1px solid rgba(221,199,137,.45); color: var(--white); }
.mobile-nav.open { display: grid; }
.mobile-nav a { padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,.16); font-size: 13px; }
.mobile-nav a:last-child { border-bottom: 0; color: var(--gold-light); }
.hero-content { position: relative; z-index: 2; display: flex; min-height: 704px; flex-direction: column; justify-content: flex-end; padding-top: 70px; }
.hero h1 { max-width: 890px; margin: 19px 0 12px; font-family: var(--serif); font-size: 78px; font-weight: 600; line-height: 1.13; word-break: keep-all; }
.hero-main-line { white-space: nowrap; }
.hero h1 em { color: var(--gold-light); font-style: normal; }
.hero-kicker { margin: 0 0 10px; color: var(--white); font-family: var(--serif); font-size: 22px; font-weight: 600; }
.hero-copy { max-width: 650px; margin: 0 0 28px; color: rgba(255,255,255,.78); font-size: 16px; word-break: keep-all; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; padding-bottom: 48px; }
.proof-rail { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.24); }
.proof-rail-item { min-height: 105px; padding: 22px 26px 17px 0; border-right: 1px solid rgba(255,255,255,.24); }
.proof-rail-item + .proof-rail-item { padding-left: 26px; }
.proof-rail-item:last-child { border-right: 0; }
.proof-rail-number { display: block; color: var(--gold-light); font-family: var(--serif); font-size: 26px; font-weight: 600; line-height: 1; }
.proof-rail-label { display: block; margin-top: 9px; color: rgba(255,255,255,.72); font-size: 12px; }
section { padding: 118px 0; }
.section-heading { margin-bottom: 48px; }
.split-heading { display: grid; grid-template-columns: 1.18fr .82fr; gap: 9%; align-items: end; }
.section-title { max-width: 790px; margin: 14px 0 0; font-family: var(--serif); font-size: 52px; font-weight: 600; line-height: 1.34; word-break: keep-all; }
.section-intro { max-width: 470px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.8; word-break: keep-all; }
.section-intro.light { color: rgba(255,255,255,.72); }
.why { background: var(--paper); }
.reason-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.reason-grid article { min-height: 245px; padding: 25px 25px 25px 0; border-right: 1px solid var(--line); }
.reason-grid article + article { padding-left: 25px; }
.reason-grid article:last-child { border-right: 0; }
.reason-grid span { color: var(--gold-dark); font: 12px var(--mono); }
.reason-grid h3 { margin: 54px 0 12px; font-family: var(--serif); font-size: 21px; line-height: 1.45; }
.reason-grid p { margin: 0; color: var(--muted); font-size: 14px; }
.balance-statement { display: grid; grid-template-columns: .8fr 1.2fr; gap: 45px; margin: 43px 0 0; padding: 29px 0 0; border-top: 2px solid var(--gold); }
.balance-statement strong { font-family: var(--serif); font-size: 21px; }
.balance-statement span { color: var(--muted); }
.architecture { background: var(--ink); color: var(--white); }
.architecture-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 9%; align-items: start; }
.architecture-copy { position: sticky; top: 42px; }
.architecture-copy p { max-width: 420px; color: rgba(255,255,255,.69); font-size: 15px; }
.architecture-stack { border-top: 1px solid rgba(255,255,255,.27); }
.architecture-stack details { border-bottom: 1px solid rgba(255,255,255,.27); }
.architecture-stack summary { display: grid; grid-template-columns: 38px 1fr 20px; gap: 14px; align-items: center; min-height: 73px; cursor: pointer; list-style: none; }
.architecture-stack summary::-webkit-details-marker { display: none; }
.architecture-stack summary::after { content: "+"; color: var(--gold-light); font-size: 22px; }
.architecture-stack details[open] summary::after { content: "−"; }
.architecture-stack summary span { color: var(--gold-light); font: 11px var(--mono); }
.architecture-stack summary strong { font-family: var(--serif); font-size: 18px; }
.architecture-stack details p { margin: -4px 35px 24px 52px; color: rgba(255,255,255,.68); font-size: 14px; }
.challenge { background: var(--paper-2); }
.challenge-head { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.challenge-head div { padding: 23px 0; }
.challenge-head div + div { padding-left: 36px; border-left: 1px solid var(--line); }
.challenge-head p { margin: 5px 0 0; color: var(--muted); font-size: 13px; }
.challenge-label { color: var(--gold-dark); font: 500 12px var(--mono); }
.challenge-label.adaptive { color: var(--green-dark); }
.challenge-examples article { display: grid; grid-template-columns: .32fr .68fr; gap: 30px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.challenge-examples h3 { margin: 0; font-family: var(--serif); font-size: 23px; }
.challenge-examples article div { display: grid; grid-template-columns: 1fr 28px 1fr; gap: 17px; align-items: center; }
.challenge-examples strong { font-size: 14px; font-weight: 500; }
.challenge-examples span { color: var(--gold-dark); text-align: center; }
.lenses { background: var(--green); color: var(--white); }
.lens-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 50px; border-top: 1px solid rgba(255,255,255,.27); border-bottom: 1px solid rgba(255,255,255,.27); }
.lens-grid article { min-height: 285px; padding: 25px 25px 24px 0; border-right: 1px solid rgba(255,255,255,.27); }
.lens-grid article + article { padding-left: 25px; }
.lens-grid article:last-child { border-right: 0; }
.lens-grid article > span { color: var(--gold-light); font: 11px var(--mono); }
.lens-grid h3 { margin: 60px 0 14px; font-family: var(--serif); font-size: 20px; line-height: 1.5; }
.lens-grid p { margin: 0; color: rgba(255,255,255,.7); font-size: 13px; }
.lens-grid .orchestrate { background: rgba(7,29,42,.25); padding-right: 24px; }
.change-path { display: flex; gap: 18px; align-items: center; justify-content: center; margin-top: 48px; font-family: var(--serif); font-size: 18px; }
.change-path i { color: var(--gold-light); font-style: normal; }
.services { background: var(--paper); }
.service-list { border-top: 1px solid var(--line); }
.service { display: grid; grid-template-columns: 55px .9fr 1.1fr 24px; gap: 25px; align-items: center; min-height: 122px; border-bottom: 1px solid var(--line); }
.service:hover { background: rgba(233,226,212,.55); }
.service > span { color: var(--gold-dark); font: 11px var(--mono); }
.service h3 { margin: 0; font-family: var(--serif); font-size: 20px; line-height: 1.4; }
.service p { margin: 0; color: var(--muted); font-size: 14px; }
.service i { color: var(--gold-dark); font-size: 21px; font-style: normal; }
.founder { background: var(--paper-2); }
.founder-grid { display: grid; grid-template-columns: minmax(280px, .72fr) 1.28fr; gap: clamp(55px, 8vw, 110px); align-items: center; }
.founder-photo { position: relative; background: var(--ink-2); }
.founder-photo img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; filter: saturate(.88); }
.founder-photo::after { content: ""; position: absolute; inset: 14px -14px -14px 14px; border: 1px solid rgba(118,92,36,.55); pointer-events: none; }
.founder-role { margin: 0 0 7px; color: var(--gold-dark); font: 11px var(--mono); }
.founder-name { margin: 0; font-family: var(--serif); font-size: 48px; }
.founder-lead { margin: 20px 0 26px; color: #465350; font-size: 16px; word-break: keep-all; }
.founder-history { margin: 0; border-top: 1px solid var(--line); }
.founder-history div { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.founder-history dt { color: var(--gold-dark); font-size: 13px; font-weight: 700; }
.founder-history dd { margin: 0; font-size: 14px; }
.research { background: var(--ink-2); color: var(--white); }
.research-list { border-top: 1px solid rgba(255,255,255,.25); }
.research-list a { display: grid; grid-template-columns: 160px 1fr 1fr 25px; gap: 25px; align-items: center; min-height: 104px; border-bottom: 1px solid rgba(255,255,255,.25); }
.research-list a:hover { background: rgba(255,255,255,.045); }
.research-list span { color: var(--gold-light); font: 11px var(--mono); }
.research-list h3 { margin: 0; font-family: var(--serif); font-size: 20px; }
.research-list p { margin: 0; color: rgba(255,255,255,.67); font-size: 13px; }
.research-list i { color: var(--gold-light); font-size: 20px; font-style: normal; }
.research-note { max-width: 790px; margin: 34px 0 0; color: rgba(255,255,255,.58); font-size: 13px; }
.contact { position: relative; overflow: hidden; background: #102a36; color: var(--white); text-align: center; }
.contact::before { content: ""; position: absolute; inset: -30%; opacity: .13; background: radial-gradient(circle, var(--gold-light) 1px, transparent 1px); background-size: 34px 34px; transform: rotate(17deg); }
.contact .wrap { position: relative; }
.contact h2 { max-width: 830px; margin: 17px auto; font-family: var(--serif); font-size: 56px; line-height: 1.35; }
.contact p { max-width: 600px; margin: 0 auto 30px; color: rgba(255,255,255,.72); font-size: 15px; }
footer { display: flex; justify-content: space-between; gap: 18px; margin-top: 88px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.22); color: rgba(255,255,255,.55); font-size: 12px; text-align: left; }

/* Architecture detail page */
.subpage { background: var(--paper); }
.subpage-header { background: var(--ink); color: var(--white); }
.subpage-header .nav { border-bottom-color: rgba(255,255,255,.18); }
.subpage-hero { padding: 92px 0 100px; }
.subpage-hero h1 { max-width: 940px; margin: 17px 0 22px; font-family: var(--serif); font-size: 72px; line-height: 1.17; }
.subpage-hero p { max-width: 680px; margin: 0; color: rgba(255,255,255,.72); font-size: 17px; }
.detail-section { padding: 100px 0; border-bottom: 1px solid var(--line); }
.detail-grid { display: grid; grid-template-columns: .62fr 1.38fr; gap: 9%; }
.detail-copy h2 { margin: 14px 0 18px; font-family: var(--serif); font-size: 46px; line-height: 1.35; }
.detail-copy > p { color: var(--muted); }
.detail-body h3 { margin: 0 0 12px; font-family: var(--serif); font-size: 23px; }
.detail-body > div, .detail-body > article { padding: 25px 0; border-bottom: 1px solid var(--line); }
.detail-body > :first-child { padding-top: 0; }
.detail-body p { margin: 0; color: var(--muted); }
.evidence-table, .outcome-table { width: 100%; border-collapse: collapse; }
.evidence-table th, .evidence-table td, .outcome-table th, .outcome-table td { padding: 15px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 13px; }
.evidence-table th, .outcome-table th { color: var(--gold-dark); font-weight: 700; }
.cycle { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.cycle article { min-height: 205px; padding: 23px 25px 23px 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cycle article:nth-child(3n+2), .cycle article:nth-child(3n+3) { padding-left: 25px; }
.cycle article:nth-child(3n) { border-right: 0; }
.cycle span { color: var(--gold-dark); font: 11px var(--mono); }
.cycle h3 { margin: 42px 0 9px; font-family: var(--serif); font-size: 20px; }
.cycle p { margin: 0; color: var(--muted); font-size: 13px; }
.boundary-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.boundary-list li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.subpage-footer { background: var(--ink); color: var(--white); }

@media (max-width: 960px) {
  .nav-links { display: none; }
  .menu { display: block; }
  .reason-grid, .lens-grid { grid-template-columns: repeat(2, 1fr); }
  .reason-grid article:nth-child(2), .lens-grid article:nth-child(2) { border-right: 0; }
  .reason-grid article:nth-child(-n+2), .lens-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .architecture-grid, .detail-grid { grid-template-columns: 1fr; gap: 52px; }
  .architecture-copy { position: static; }
}
@media (max-width: 700px) {
  .hero-main-line { white-space: normal; }
  .wrap { width: min(100% - 38px, 1180px); }
  .hero { min-height: 790px; }
  .nav { height: 70px; }
  .brand-logo { width: 118px; }
  .nav-cta { display: none; }
  .hero-content { min-height: 720px; padding-top: 65px; }
  .hero h1 { font-size: 39px; }
  .hero-kicker { font-size: 18px; }
  .hero-copy { font-size: 14px; }
  .hero-actions { padding-bottom: 34px; }
  .proof-rail-item { min-width: 0; padding: 18px 8px 16px 0; }
  .proof-rail-item + .proof-rail-item { padding-left: 8px; }
  .proof-rail-number { font-size: 20px; }
  .proof-rail-label { font-size: 10px; line-height: 1.45; }
  section, .detail-section { padding: 78px 0; }
  .split-heading { grid-template-columns: 1fr; gap: 24px; align-items: start; }
  .section-heading { margin-bottom: 34px; }
  .section-title { font-size: 34px; }
  .section-intro { font-size: 15px; line-height: 1.7; }
  .reason-grid, .lens-grid { grid-template-columns: 1fr; }
  .reason-grid article, .reason-grid article + article, .lens-grid article, .lens-grid article + article { min-height: 0; padding: 22px 0 26px; border-right: 0; border-bottom: 1px solid var(--line); }
  .reason-grid h3, .lens-grid h3 { margin-top: 31px; }
  .balance-statement { grid-template-columns: 1fr; gap: 10px; }
  .architecture-stack summary { grid-template-columns: 28px 1fr 18px; }
  .architecture-stack summary strong { font-size: 15px; }
  .architecture-stack details p { margin-left: 42px; }
  .challenge-head { grid-template-columns: 1fr; }
  .challenge-head div + div { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .challenge-examples article { grid-template-columns: 1fr; gap: 18px; }
  .challenge-examples article div { grid-template-columns: 1fr; gap: 8px; }
  .change-path { display: grid; grid-template-columns: repeat(3, auto); gap: 11px; font-size: 16px; }
  .service { grid-template-columns: 35px 1fr 20px; gap: 12px; padding: 23px 0; }
  .service p { grid-column: 2 / 4; }
  .founder-grid { grid-template-columns: 1fr; gap: 48px; }
  .founder-photo { width: min(340px, 100%); }
  .founder-name { font-size: 38px; }
  .founder-history div { grid-template-columns: 1fr; gap: 5px; }
  .research-list a { grid-template-columns: 1fr 22px; gap: 8px; padding: 21px 0; }
  .research-list h3, .research-list p { grid-column: 1; }
  .research-list i { grid-column: 2; grid-row: 1 / 4; align-self: center; }
  footer { flex-direction: column; margin-top: 68px; }
  .contact h2 { font-size: 36px; }
  .subpage-hero { padding: 68px 0 74px; }
  .subpage-hero h1 { font-size: 44px; }
  .detail-copy h2 { font-size: 34px; }
  .cycle { grid-template-columns: 1fr; }
  .cycle article, .cycle article:nth-child(3n+2), .cycle article:nth-child(3n+3) { min-height: 0; padding: 22px 0; border-right: 0; }
  .cycle h3 { margin-top: 28px; }
  .evidence-table, .outcome-table { display: block; overflow-x: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}