:root {
  color-scheme: light;
  --paper: #f3efe5;
  --paper-deep: #e9e1d2;
  --ink: #101828;
  --blue: #173f8a;
  --blue-dark: #0d2d66;
  --ochre: #a64b0a;
  --white: #fffdf8;
  --muted: #4d5a6a;
  --line: rgba(16, 24, 40, .24);
  --line-light: rgba(255, 253, 248, .28);
  --serif: Iowan Old Style, Baskerville, Times New Roman, serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, Segoe UI, sans-serif;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --shadow: 0 24px 80px rgba(13, 45, 102, .18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; overflow-x: hidden; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
svg { display: block; }
::selection { color: var(--white); background: var(--blue); }
:focus-visible { outline: 3px solid var(--ochre); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 1000; top: 12px; right: 12px; padding: 12px 18px; background: var(--ink); color: var(--white); transform: translateY(-160%); transition: transform .2s; }
.skip-link:focus { transform: none; }
.progress { position: fixed; z-index: 300; top: 0; left: 0; width: 100%; height: 3px; pointer-events: none; }
.progress span { display: block; width: 100%; height: 100%; background: var(--ochre); transform: scaleX(0); transform-origin: left; }

.site-header { position: fixed; z-index: 200; top: 0; left: 0; width: 100%; min-height: 80px; padding: 14px clamp(20px, 4vw, 64px); display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid transparent; transition: background .25s, border-color .25s, min-height .25s; }
.site-header.is-scrolled { min-height: 68px; background: rgba(243, 239, 229, .93); border-color: var(--line); backdrop-filter: blur(12px); }
.wordmark { display: flex; align-items: center; gap: 12px; direction: ltr; font-family: var(--serif); font-size: 18px; line-height: 1; }
.wordmark small { display: block; margin-top: 5px; color: var(--muted); font: 9px/1.1 var(--sans); letter-spacing: .08em; text-transform: uppercase; }
.monogram { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--blue); background: var(--blue); color: var(--white); font: 600 13px/1 var(--serif); letter-spacing: -.03em; }
.site-header nav { display: flex; align-items: center; gap: clamp(18px, 3vw, 42px); font-size: 13px; }
.site-header nav a { min-height: 44px; display: inline-flex; align-items: center; position: relative; }
.site-header nav a:not(.nav-cta)::after { content: ''; position: absolute; inset: auto 0 6px; height: 1px; background: var(--blue); transform: scaleX(0); transition: transform .2s var(--ease); }
.site-header nav a:hover::after { transform: scaleX(1); }
.nav-cta { padding: 0 18px; background: var(--ink); color: var(--white); }

.hero { position: relative; min-height: 100dvh; padding: 132px clamp(20px, 6vw, 96px) 72px; display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(360px, .97fr); gap: clamp(48px, 7vw, 120px); align-items: center; overflow: hidden; }
.hero::before { content: ''; position: absolute; z-index: 0; width: 540px; height: 540px; left: -290px; bottom: -270px; border: 1px solid var(--line); border-radius: 50%; }
.hero-copy, .hero-stage { position: relative; z-index: 1; }
.eyebrow, .section-label { margin: 0; display: flex; align-items: center; gap: 12px; color: var(--blue); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow span { padding: 7px 10px; border: 1px solid var(--line); color: var(--muted); font-weight: 500; letter-spacing: 0; text-transform: none; }
.hero h1 { margin: 38px 0 32px; max-width: 780px; font: 500 clamp(60px, 7.6vw, 124px)/.88 var(--serif); letter-spacing: -.065em; }
.hero h1 span, .hero h1 em { display: block; }
.hero h1 em { color: var(--ochre); font-weight: 400; }
.hero-intro { max-width: 600px; margin: 0; color: var(--muted); font-size: clamp(17px, 1.5vw, 21px); line-height: 1.75; }
.hero-actions { margin-top: 38px; display: flex; align-items: center; gap: 28px; }
.button { min-height: 52px; padding: 0 23px; display: inline-flex; align-items: center; justify-content: center; gap: 28px; border: 1px solid transparent; font-weight: 700; transition: background .22s, color .22s, transform .22s var(--ease); touch-action: manipulation; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button.primary { background: var(--blue); color: var(--white); }
.button.primary:hover { background: var(--blue-dark); }
.text-link { min-height: 48px; display: inline-flex; align-items: center; border-bottom: 1px solid var(--ink); font-size: 14px; }
.hero-stage { min-height: 650px; display: grid; place-items: center; }
.stage-orbit { position: absolute; border: 1px solid rgba(23, 63, 138, .24); border-radius: 50%; }
.orbit-a { width: min(38vw, 520px); aspect-ratio: 1; }
.orbit-b { width: min(29vw, 390px); aspect-ratio: 1; border-color: rgba(166, 75, 10, .32); }
.brief { position: absolute; background: var(--white); box-shadow: var(--shadow); }
.brief-main { z-index: 2; width: min(31vw, 440px); aspect-ratio: .77; padding: clamp(26px, 3vw, 48px); transform: rotate(-3deg); display: flex; flex-direction: column; }
.brief-main header, .brief-main footer { display: flex; justify-content: space-between; direction: ltr; color: var(--muted); font-size: 9px; letter-spacing: .12em; }
.brief-kicker { margin: auto 0 24px; color: var(--blue); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.brief-main h2 { margin: 0; font: 500 clamp(36px, 3.7vw, 62px)/1.03 var(--serif); letter-spacing: -.045em; }
.brief-main .rule { height: 5px; margin: 30px 0; background: var(--ochre); transform-origin: right; }
.brief-note { z-index: 3; left: 2%; bottom: 7%; width: 180px; aspect-ratio: .82; padding: 25px; background: var(--blue); color: var(--white); transform: rotate(8deg); }
.brief-note span { font-size: 9px; letter-spacing: .14em; }
.brief-note strong { display: block; margin-top: 50px; font: 500 25px/1.05 var(--serif); letter-spacing: -.03em; }
.brief-note i { display: block; width: 46px; height: 1px; margin-top: 28px; background: var(--white); }
.stage-caption { position: absolute; right: 3%; bottom: 1%; color: var(--muted); font-size: 9px; letter-spacing: .11em; text-transform: uppercase; }

.statement { padding: clamp(110px, 14vw, 210px) clamp(20px, 8vw, 128px); background: var(--blue); color: var(--white); }
.statement .section-label, .structure .section-label { color: #c7d7fa; }
.section-label span { min-width: 32px; color: var(--ochre); }
.statement-grid { margin-top: 72px; display: grid; grid-template-columns: 1.45fr .55fr; gap: clamp(50px, 10vw, 150px); align-items: end; }
.statement h2 { margin: 0; font: 500 clamp(49px, 6.9vw, 108px)/1 var(--serif); letter-spacing: -.055em; }
.statement h2 em { color: #efb36e; font-weight: 400; }
.statement-copy p { margin: 0; color: #e5ecfb; font-size: 17px; line-height: 1.9; }
.statement-copy .micro-note { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--line-light); color: #bdcae2; font-size: 13px; }

.principles { padding: clamp(100px, 13vw, 190px) clamp(20px, 8vw, 128px); }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: end; }
.section-head h2 { margin: 0; font: 500 clamp(48px, 6vw, 94px)/1 var(--serif); letter-spacing: -.05em; }
.principle-list { margin-top: 86px; border-top: 1px solid var(--line); }
.principle { min-height: 190px; padding: 32px 0; display: grid; grid-template-columns: 80px 1fr 120px; gap: 28px; align-items: center; border-bottom: 1px solid var(--line); transition: padding .25s var(--ease), background .25s; }
.principle:hover { padding-inline: 24px; background: var(--white); }
.principle .number { color: var(--ochre); font-size: 12px; }
.principle p { margin: 0 0 12px; color: var(--blue); font-size: 11px; font-weight: 700; letter-spacing: .1em; }
.principle h3 { margin: 0; font: 500 clamp(32px, 4vw, 58px)/1.04 var(--serif); letter-spacing: -.04em; }
.principle svg { width: 100%; fill: none; stroke: var(--blue); stroke-width: 1.4; transition: transform .45s var(--ease); }
.principle:hover svg { transform: rotate(6deg) scale(1.06); }

.structure { padding: clamp(100px, 13vw, 190px) clamp(20px, 8vw, 128px); display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(60px, 10vw, 160px); background: var(--ink); color: var(--white); }
.structure-intro { position: sticky; top: 120px; align-self: start; }
.structure h2 { margin: 56px 0 32px; font: 500 clamp(48px, 5.8vw, 88px)/1 var(--serif); letter-spacing: -.05em; }
.structure-intro > p:last-child { max-width: 540px; margin: 0; color: #b8c0cc; font-size: 16px; line-height: 1.85; }
.chapters { border-top: 1px solid var(--line-light); }
.chapter { min-height: 260px; padding: 50px 0; display: grid; grid-template-columns: 60px 1fr; gap: 22px; border-bottom: 1px solid var(--line-light); }
.chapter > span { color: #efb36e; font: 400 30px/1 var(--serif); }
.chapter small { color: #91a8d8; font-size: 10px; letter-spacing: .13em; }
.chapter h3 { margin: 18px 0; font: 500 clamp(34px, 4vw, 57px)/1 var(--serif); letter-spacing: -.04em; }
.chapter p { max-width: 440px; margin: 0; color: #b8c0cc; line-height: 1.8; }

.choice { position: relative; min-height: 100dvh; padding: 120px clamp(20px, 8vw, 128px) 44px; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.choice-mark { position: absolute; left: -2vw; top: 50%; color: rgba(23, 63, 138, .07); font: 500 min(56vw, 760px)/.7 var(--serif); transform: translateY(-50%); pointer-events: none; }
.choice-mark::before { content: '02'; }
.choice > *:not(.choice-mark) { position: relative; z-index: 1; }
.choice h2 { max-width: 1000px; margin: 55px 0 34px; font: 500 clamp(58px, 8.4vw, 132px)/.91 var(--serif); letter-spacing: -.065em; }
.choice > p:not(.section-label) { max-width: 620px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.85; }
.choice-button { width: fit-content; margin-top: 42px; background: var(--ochre); color: var(--white); }
.choice-button:hover { background: #843a08; }
.choice footer { position: absolute; right: clamp(20px, 4vw, 64px); left: clamp(20px, 4vw, 64px); bottom: 28px; display: flex; justify-content: space-between; gap: 24px; direction: ltr; color: var(--muted); font-size: 9px; letter-spacing: .09em; }

.js .reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s var(--ease), transform .55s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.js .brief-main { opacity: 0; transform: translateY(32px) rotate(-3deg); transition: opacity .7s .12s var(--ease), transform .7s .12s var(--ease); }
.js .brief-note { opacity: 0; transform: translate(-18px, 26px) rotate(8deg); transition: opacity .7s .3s var(--ease), transform .7s .3s var(--ease); }
.js .hero-stage.is-visible .brief-main { opacity: 1; transform: rotate(-3deg); }
.js .hero-stage.is-visible .brief-note { opacity: 1; transform: rotate(8deg); }
.js .hero-stage.is-visible .brief-main .rule { animation: rule-in .8s .7s var(--ease) both; }
@keyframes rule-in { from { transform: scaleX(0); } }
@keyframes orbit { to { transform: rotate(360deg); } }

@media (max-width: 900px) {
  .site-header nav a:not(.nav-cta) { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 120px; }
  .hero-stage { min-height: 610px; }
  .brief-main { width: min(64vw, 430px); }
  .orbit-a { width: min(72vw, 510px); }
  .orbit-b { width: min(56vw, 390px); }
  .statement-grid, .section-head, .structure { grid-template-columns: 1fr; }
  .statement-copy { max-width: 560px; }
  .structure-intro { position: static; }
}

@media (max-width: 560px) {
  .site-header { min-height: 68px; padding-inline: 16px; }
  .wordmark > span:last-child { font-size: 15px; }
  .wordmark small { display: none; }
  .monogram { width: 40px; height: 40px; }
  .nav-cta { padding-inline: 14px; font-size: 12px; }
  .hero { padding: 108px 20px 64px; gap: 24px; }
  .hero h1 { margin-block: 30px 26px; font-size: clamp(56px, 18vw, 78px); }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 14px; }
  .button, .text-link { width: 100%; justify-content: space-between; }
  .hero-stage { min-height: 500px; margin-inline: -20px; }
  .brief-main { width: min(76vw, 340px); }
  .brief-main h2 { font-size: 40px; }
  .brief-note { left: 5%; bottom: 4%; width: 136px; padding: 18px; }
  .brief-note strong { margin-top: 32px; font-size: 19px; }
  .stage-caption { right: 20px; bottom: 0; }
  .statement, .principles, .structure { padding-inline: 20px; }
  .statement-grid, .principle-list { margin-top: 54px; }
  .statement h2 { font-size: 49px; }
  .section-head { align-items: start; }
  .section-head h2 { font-size: 50px; }
  .principle { min-height: 170px; grid-template-columns: 38px 1fr 62px; gap: 12px; }
  .principle:hover { padding-inline: 8px; }
  .principle h3 { font-size: 34px; }
  .structure { gap: 72px; }
  .structure h2 { font-size: 49px; }
  .chapter { min-height: 225px; padding-block: 38px; }
  .choice { padding-inline: 20px; padding-bottom: 100px; }
  .choice h2 { font-size: 61px; }
  .choice-button { width: 100%; }
  .choice footer { flex-direction: column; gap: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js .reveal, .js .brief-main, .js .brief-note { opacity: 1; transform: none; }
}