:root {
  --paper: #f7f6f2;
  --ink: #272923;
  --muted: #6c6e65;
  --accent: #6c7356;
  --line: #d9dbd0;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 40px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
::selection { background: #dce0d0; color: var(--ink); }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; border-radius: 2px; }
p, h1, h2 { margin: 0; }
.shell { width: min(1200px, calc(100% - 112px)); margin-inline: auto; }
.header { display: flex; align-items: center; justify-content: space-between; padding-top: 32px; }
.wordmark { display: inline-flex; align-items: center; gap: 11px; font-size: 0.9375rem; font-weight: 500; letter-spacing: -.02em; text-decoration: none; }
.mark { width: 28px; height: 28px; color: var(--accent); }
.header-note { font-size: 0.75rem; color: var(--muted); }
.hero { min-height: min(810px, calc(100svh - 60px)); display: flex; flex-direction: column; justify-content: space-between; padding-top: clamp(80px, 11vh, 136px); }
.eyebrow { font-size: 0.75rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 500; display: flex; gap: 20px; align-items: baseline; color: var(--muted); }
.index { color: var(--accent); font-size: 0.75rem; letter-spacing: .04em; font-variant-numeric: tabular-nums; }
.hero-intro { margin-bottom: 30px; }
h1 { font-family: var(--serif); font-size: clamp(2.5rem, 4.55vw, 4.375rem); font-weight: 400; line-height: 1.24; letter-spacing: -.045em; }
.headline-line { display: block; }
em { color: var(--accent); font-family: var(--serif); font-weight: 400; }
h1 em { display: inline-block; position: relative; }
h1 em::after { content: ""; position: absolute; height: 1px; background: var(--accent); opacity: .35; inset: auto 1px 1px 2px; }
.hero-support { margin-top: 39px; }
.subheadline { font-size: 1.125rem; line-height: 1.5; letter-spacing: -.02em; }
.hero-detail { margin-top: 10px; font-size: 0.875rem; line-height: 1.6; color: var(--muted); }
.actions { display: flex; align-items: center; gap: 30px; margin-top: 29px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 13px 23px; background: var(--ink); border: 1px solid var(--ink); border-radius: 3px; color: var(--paper); font-size: 0.875rem; font-weight: 500; line-height: 1.4; text-decoration: none; transition: background .2s, border-color .2s, transform .2s; }
.button:hover { background: #464b3c; border-color: #464b3c; transform: translateY(-1px); }
.button:active { transform: translateY(0); }
.text-link { font-size: 0.875rem; text-underline-offset: 5px; text-decoration-color: #a7aa9d; padding-block: 12px; transition: color .2s; }
.text-link:hover { color: var(--accent); }
.hero-foot { display: flex; align-items: center; gap: 16px; padding-block: 56px 29px; font-size: 0.75rem; letter-spacing: .02em; color: var(--muted); }
.hero-foot > :first-child { margin-right: auto; }
.hero-foot em { font-family: inherit; color: inherit; }
.scroll-line { display: block; width: 32px; height: 1px; background: #a3a894; }
.section { border-top: 1px solid var(--line); }
.shift { padding-top: 83px; padding-bottom: 94px; }
h2 { font-family: var(--serif); font-size: clamp(2.125rem, 3.4vw, 3.125rem); letter-spacing: -.045em; font-weight: 400; line-height: 1.2; }
.section-top h2 { margin-top: 24px; }
.progression { display: grid; grid-template-columns: 1fr 1fr 1.06fr; margin: 54px 0 52px; padding: 0; list-style: none; }
.stage { position: relative; padding: 25px 40px 25px 0; border-top: 1px solid var(--line); }
.stage:not(:first-child) { padding-left: 48px; }
.stage:not(:last-child)::after { content: "→"; position: absolute; right: -6px; top: 50px; color: #959b87; font-family: var(--sans); font-size: 1.4375rem; font-weight: 300; }
.stage-label { display: block; font-size: 0.75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.stage-title { display: block; font-family: var(--serif); font-size: clamp(1.75rem, 2.65vw, 2.375rem); line-height: 1.15; letter-spacing: -.035em; margin-top: 16px; }
.stage-next { border-color: var(--accent); }
.stage-next .stage-label, .stage-next .stage-title { color: var(--accent); }
.stage-next .stage-title { font-style: italic; }
.reading-column { max-width: 505px; }
.shift-copy p, .thesis-copy p { font-size: 1rem; line-height: 1.75; color: var(--muted); letter-spacing: -.012em; }
.shift-copy .human-line { margin-top: 20px; margin-bottom: 21px; color: var(--ink); font-weight: 500; }
.statement { margin-top: 75px; font-family: var(--serif); font-size: clamp(1.65rem, 2.8vw, 2.5rem); line-height: 1.45; letter-spacing: -.025em; }
.thesis { padding-top: 92px; }
.thesis-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 65px; }
.thesis-heading h2 { font-size: clamp(3rem, 5.3vw, 5rem); margin-top: 30px; line-height: 1.06; }
.thesis-copy { padding-top: 49px; max-width: 480px; }
.thesis-copy p + p { margin-top: 22px; }
.thesis-copy .thesis-purpose { margin-top: 31px; }
.thesis-purpose span { color: var(--ink); }
.uncertainty { margin-top: 43px; }
.uncertainty p + p { margin-top: 4px; }
.closing { margin-top: 85px; padding: 0 0 84px; text-align: center; }
.closing p { font-family: var(--serif); font-size: clamp(1.875rem, 2.8vw, 2.375rem); letter-spacing: -.035em; }
.closing .button { margin-top: 26px; min-width: 122px; }
.footer { border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 24px; padding: 25px 0 29px; font-size: 0.75rem; color: var(--muted); }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 5; padding: 12px 18px; color: var(--paper); background: var(--ink); }
.skip-link:focus { top: 16px; }
@media (prefers-reduced-motion: no-preference) {
  .hero-intro, .headline-line, .hero-support { animation: arrive .85s both; }
  .headline-line:nth-child(1) { animation-delay: .09s; }
  .headline-line:nth-child(2) { animation-delay: .19s; }
  .headline-line:nth-child(3) { animation-delay: .29s; }
  .hero-support { animation-delay: .4s; }
  .reveal.is-entering { animation: arrive .8s both; animation-delay: var(--delay, 0ms); }
  @keyframes arrive { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
}
@media (min-width: 1440px) { .hero { min-height: 820px; } }
@media (max-width: 900px) {
  .shell { width: calc(100% - 72px); }
  .hero { min-height: 710px; padding-top: 97px; }
  h1 { font-size: clamp(2.5rem, 5.1vw, 3.625rem); }
  .thesis-grid { gap: 38px; }
  .stage:not(:first-child) { padding-left: 30px; }
}
@media (max-width: 600px) {
  html { scroll-padding-top: 28px; }
  .shell { width: calc(100% - 44px); }
  .header { padding-top: 23px; }
  .wordmark { gap: 7px; font-size: 0.875rem; }
  .mark { width: 25px; height: 25px; }
  .header-note { font-size: 0.75rem; }
  .hero { min-height: 720px; padding-top: clamp(55px, 8vh, 72px); }
  .hero-intro { margin-bottom: 27px; }
  h1 { font-size: clamp(2.2rem, 8.75vw, 3.2rem); line-height: 1.16; letter-spacing: -.045em; }
  .headline-line + .headline-line { margin-top: 10px; }
  .hero-support { margin-top: 28px; max-width: 350px; }
  .subheadline { font-size: 1rem; line-height: 1.5; max-width: 305px; }
  .hero-detail { margin-top: 13px; font-size: 0.875rem; max-width: 310px; }
  .actions { margin-top: 23px; gap: 25px; }
  .button { font-size: 0.875rem; padding-inline: 20px; }
  .hero-foot { padding-top: 58px; padding-bottom: 24px; }
  .hero-foot > :first-child { font-size: 0.75rem; }
  .hero-foot > :last-child { display: none; }
  .eyebrow { font-size: 0.75rem; gap: 15px; }
  .shift { padding-top: 55px; padding-bottom: 58px; }
  .section-top h2 { max-width: 310px; margin-top: 22px; font-size: 2.1875rem; }
  .progression { grid-template-columns: 1fr; margin: 37px 0 36px; }
  .stage, .stage:not(:first-child) { padding: 22px 0 25px; display: grid; grid-template-columns: minmax(0, 46%) minmax(0, 1fr); column-gap: 10px; align-items: baseline; }
  .stage:not(:last-child) { margin-bottom: 32px; }
  .stage:not(:last-child)::after { content: "↓"; right: auto; left: 3px; top: calc(100% + 6px); bottom: auto; padding: 0; background: none; z-index: 1; font-size: 1.1875rem; line-height: 1; }
  .stage-label { font-size: 0.75rem; letter-spacing: .075em; }
  .stage-title { font-size: 1.875rem; margin: 0; }
  .stage-next { border-bottom: 1px solid var(--line); }
  .shift-copy p, .thesis-copy p { font-size: 1rem; line-height: 1.7; }
  .statement { margin-top: 46px; font-size: 1.8125rem; line-height: 1.3; }
  .statement p + p { margin-top: 16px; }
  .thesis { padding-top: 58px; }
  .thesis-grid { grid-template-columns: 1fr; gap: 34px; }
  .thesis-heading h2 { margin-top: 27px; font-size: 3.6875rem; }
  .thesis-copy { padding-top: 0; max-width: 410px; }
  .uncertainty { margin-top: 32px; }
  .closing { text-align: left; margin-top: 57px; padding-bottom: 54px; }
  .closing p { font-size: 1.875rem; }
  .closing .button { margin-top: 23px; }
  .footer { padding: 22px 0 26px; font-size: 0.75rem; }
}
@media (max-width: 360px) {
  .stage, .stage:not(:first-child) { grid-template-columns: minmax(0, 40%) minmax(0, 1fr); }
  .stage-title { font-size: 1.75rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}