:root {
  --teal: #08b8ad;
  --teal-deep: #007e78;
  --teal-pale: #d8f7f3;
  --ink: #070a0a;
  --paper: #f7f8f5;
  --white: #ffffff;
  --line: #cbd5d2;
  --muted: #53615f;
  --display: "Bricolage Grotesque", "Arial Narrow", sans-serif;
  --body: "Instrument Sans", Arial, sans-serif;
  --max: 1440px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; }
::selection { background: var(--teal); color: var(--ink); }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  transform: translateY(-150%);
  background: var(--ink);
  color: var(--white);
  padding: 10px 14px;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  z-index: 10;
  max-width: var(--max);
  min-height: 76px;
  margin: 0 auto;
  padding: 12px 28px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--ink);
}
.brand, .footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  font-family: var(--display);
  font-weight: 750;
  text-decoration: none;
  letter-spacing: -0.025em;
}
.brand img, .footer-brand img { border-radius: 11px; }
.site-header nav { display: flex; gap: 30px; }
.site-header nav a {
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.site-header nav a:hover { color: var(--teal-deep); }
.header-cta {
  justify-self: end;
  background: var(--ink);
  color: var(--white);
  text-decoration: none;
  padding: 10px 15px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 650;
}
.header-cta:hover { background: var(--teal); color: var(--ink); }

main { overflow: hidden; }
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(56px, 8vw, 120px) 28px 34px;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(440px, 1.05fr);
  gap: 18px;
  align-items: end;
}
.issue, .section-kicker {
  margin: 0 0 20px;
  font-size: 14px;
  font-weight: 650;
  color: var(--teal-deep);
}
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  font-family: var(--display);
  font-weight: 750;
  letter-spacing: -0.055em;
  line-height: 0.94;
}
h1 { font-size: clamp(58px, 7.35vw, 126px); margin-bottom: 34px; }
h2 { font-size: clamp(42px, 5vw, 76px); margin-bottom: 26px; }
h3 { font-size: clamp(26px, 3vw, 42px); }
.dek {
  max-width: 600px;
  font-family: var(--display);
  font-size: clamp(22px, 2.3vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.03em;
}
.article-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 40px;
}
.article-meta span {
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 12px;
  font-weight: 650;
}
.hero-art { margin: 0; position: relative; }
.hero-art img {
  width: 100%;
  aspect-ratio: 1.1 / 1;
  object-fit: cover;
  object-position: 66% center;
  border: 1px solid var(--ink);
  border-radius: 48% 48% 8px 48%;
}
.hero-art figcaption {
  display: inline-block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}

.article-grid {
  max-width: 1120px;
  margin: 0 auto;
  padding: 120px 28px;
  display: grid;
  grid-template-columns: 180px minmax(0, 720px);
  gap: 56px;
}
.margin-note {
  padding-top: 11px;
  border-top: 1px solid var(--ink);
  font-size: 13px;
  font-weight: 650;
  color: var(--teal-deep);
}
.prose { max-width: 720px; }
.prose p { font-size: clamp(19px, 2vw, 24px); line-height: 1.52; letter-spacing: -0.015em; }
.prose p + p { margin-top: 1.4em; }
.prose strong { text-decoration: underline; text-decoration-color: var(--teal); text-decoration-thickness: 0.18em; text-underline-offset: 0.08em; }
.prose em { font-family: var(--display); font-weight: 650; font-style: normal; color: var(--teal-deep); }
.lead p:first-child::first-letter {
  float: left;
  margin: 8px 10px 0 0;
  color: var(--teal);
  font-family: var(--display);
  font-size: 92px;
  font-weight: 800;
  line-height: 0.65;
}

.thesis-band {
  background: var(--teal);
  padding: clamp(76px, 10vw, 150px) max(28px, calc((100vw - 1120px) / 2));
}
.thesis-band p { margin-bottom: 10px; font-size: 14px; font-weight: 650; }
.thesis-band blockquote {
  max-width: 1100px;
  margin: 0 0 62px;
  font-family: var(--display);
  font-size: clamp(40px, 6.4vw, 96px);
  font-weight: 760;
  letter-spacing: -0.055em;
  line-height: 0.98;
}
.thesis-band blockquote:last-child { margin-bottom: 0; }

.loop-section {
  position: relative;
  background: var(--ink);
  color: var(--white);
  padding: clamp(90px, 10vw, 150px) max(28px, calc((100vw - 1280px) / 2));
}
.loop-section::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background-image: linear-gradient(rgba(255,255,255,.3) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.3) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 62% 55%, black, transparent 72%);
}
.loop-copy, .loop-stage { position: relative; z-index: 1; }
.loop-copy { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; align-items: end; }
.loop-copy .section-kicker { color: var(--teal); }
.loop-copy h2 { max-width: 820px; margin-bottom: 0; }
.loop-copy > p:last-child { align-self: end; max-width: 310px; color: #a9b5b3; }
.loop-stage {
  min-height: 620px;
  margin-top: 72px;
  display: grid;
  grid-template-columns: 1fr 320px;
  grid-template-rows: 1fr auto;
  gap: 36px;
}
.orbit { position: relative; min-height: 430px; }
.orbit-ring {
  position: absolute;
  top: 50%; left: 50%;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-12deg);
}
.ring-one { width: min(56vw, 710px); height: 280px; }
.ring-two { width: min(48vw, 590px); height: 390px; transform: translate(-50%, -50%) rotate(27deg); border-color: rgba(8,184,173,.7); }
.orbit-core {
  position: absolute;
  top: 50%; left: 50%;
  width: 142px; height: 142px;
  display: grid; place-items: center;
  transform: translate(-50%, -50%);
  border-radius: 34px;
  background: var(--teal);
  box-shadow: 0 0 90px rgba(8,184,173,.35);
}
.orbit-core span { font-family: var(--display); font-size: 92px; font-weight: 800; line-height: 1; }
.orbit-pulse {
  position: absolute;
  top: calc(50% - 140px); left: calc(50% + min(25vw, 315px));
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 0 0 10px rgba(8,184,173,.3), 0 0 45px var(--teal);
  animation: orbit 7s linear infinite;
}
.loop-controls { display: flex; flex-direction: column; justify-content: center; }
.loop-step {
  width: 100%;
  display: grid;
  grid-template-columns: 92px 1fr;
  align-items: baseline;
  gap: 12px;
  padding: 16px 0;
  border: 0;
  border-bottom: 1px solid #34403e;
  background: transparent;
  color: #7f8e8b;
  text-align: left;
  cursor: pointer;
}
.loop-step span { font-family: var(--display); font-size: 20px; font-weight: 700; }
.loop-step small { font-size: 12px; }
.loop-step:hover, .loop-step.active { color: var(--white); }
.loop-step.active span { color: var(--teal); }
.loop-detail {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 100px 1fr 1.2fr;
  gap: 28px;
  align-items: start;
  border-top: 1px solid var(--teal);
  padding-top: 24px;
}
.loop-detail span { color: var(--teal); font-size: 13px; font-weight: 650; }
.loop-detail h3 { margin-bottom: 0; }
.loop-detail p { max-width: 520px; color: #c1ccca; font-size: 18px; }

.decision-object {
  max-width: 1280px;
  margin: 40px auto 120px;
  padding: 70px;
  background: var(--teal-pale);
  border-radius: 6px 90px 6px 6px;
}
.decision-heading { display: grid; grid-template-columns: 1fr 2fr; gap: 32px; }
.decision-heading h2 { max-width: 700px; }
.decision-spec { display: grid; grid-template-columns: repeat(5, 1fr); margin-top: 45px; border: 1px solid var(--ink); }
.decision-spec > div { min-height: 170px; padding: 18px; border-right: 1px solid var(--ink); }
.decision-spec > div:nth-child(5) { border-right: 0; }
.decision-spec span { font-size: 12px; font-weight: 700; }
.decision-spec p { margin-top: 70px; margin-bottom: 0; font-family: var(--display); font-size: 19px; line-height: 1.1; }
.decision-spec .memory { grid-column: 1 / -1; min-height: auto; display: flex; justify-content: space-between; align-items: center; background: var(--ink); color: var(--white); border-right: 0; }
.decision-spec .memory p { margin: 0; font-size: clamp(22px, 3vw, 36px); }

.comparison-section { max-width: 1280px; grid-template-columns: 180px minmax(0, 940px); }
.prose.wide { max-width: 940px; }
.comparison-table { margin-top: 60px; border-top: 1px solid var(--ink); }
.comparison-row { display: grid; grid-template-columns: 1fr 1fr 1.45fr; gap: 24px; padding: 22px 10px; border-bottom: 1px solid var(--line); }
.comparison-row.heading { color: var(--muted); font-size: 12px; font-weight: 650; }
.comparison-row strong { font-family: var(--display); font-size: 19px; }
.leaser-row { background: var(--teal); border-color: var(--ink); }

.compounding {
  background: var(--teal);
  padding: clamp(80px, 10vw, 145px) max(28px, calc((100vw - 1280px) / 2));
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 90px;
}
.compounding-copy p:last-child { max-width: 500px; font-size: 20px; }
.flywheel { margin: 0; padding: 0; list-style: none; counter-reset: flywheel; }
.flywheel li {
  counter-increment: flywheel;
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 20px;
  padding: 17px 0;
  border-bottom: 1px solid rgba(7,10,10,.45);
  font-family: var(--display);
  font-size: clamp(22px, 3vw, 38px);
  font-weight: 700;
  letter-spacing: -0.04em;
}
.flywheel li::before { content: counter(flywheel, decimal-leading-zero); font-family: var(--body); font-size: 11px; letter-spacing: 0; padding-top: 9px; }

.ecosystem {
  max-width: 1280px;
  margin: 0 auto;
  padding: 130px 28px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 100px;
  align-items: end;
}
.ecosystem h2 { max-width: 780px; margin: 0; }
.ecosystem > div:last-child p { font-size: 20px; }
.big-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 46px;
  padding: 19px 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  font-family: var(--display);
  font-size: 25px;
  font-weight: 720;
  text-decoration: none;
}
.big-link span { width: 44px; height: 44px; display: grid; place-items: center; background: var(--teal); border-radius: 50%; }

footer {
  margin: 0 28px;
  padding: 24px 0 38px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 40px;
  align-items: center;
  border-top: 1px solid var(--ink);
  font-size: 13px;
}
footer p { margin: 0; color: var(--muted); }

a:focus-visible, button:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; }
@keyframes orbit {
  from { transform: rotate(0deg) translateX(12px) rotate(0deg); }
  to { transform: rotate(360deg) translateX(12px) rotate(-360deg); }
}

@media (max-width: 900px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-art { margin-top: 34px; }
  .hero-art img { aspect-ratio: 16 / 9; border-radius: 80px 80px 8px 80px; }
  .article-grid, .comparison-section { grid-template-columns: 1fr; gap: 28px; padding-top: 90px; padding-bottom: 90px; }
  .margin-note { width: 130px; }
  .loop-copy, .compounding, .ecosystem, .decision-heading { grid-template-columns: 1fr; }
  .loop-stage { grid-template-columns: 1fr; }
  .loop-controls { grid-row: 2; }
  .loop-detail { grid-row: 3; grid-template-columns: 70px 1fr; }
  .loop-detail p { grid-column: 2; }
  .decision-object { margin: 20px 20px 90px; padding: 48px 24px; }
  .decision-spec { grid-template-columns: repeat(2, 1fr); }
  .decision-spec > div { border-bottom: 1px solid var(--ink); }
  .decision-spec > div:nth-child(5) { grid-column: 1 / -1; }
  .decision-spec .memory { grid-column: 1 / -1; }
  .comparison-row { grid-template-columns: 1fr; gap: 5px; }
  .comparison-row.heading { display: none; }
  footer { grid-template-columns: 1fr; gap: 14px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .site-header { padding: 10px 18px; }
  .brand img { width: 44px; height: 44px; }
  .brand span { font-size: 14px; }
  .header-cta { padding: 9px 12px; }
  .hero { padding: 48px 18px 24px; }
  h1 { font-size: clamp(48px, 15vw, 70px); }
  .article-grid { padding-left: 18px; padding-right: 18px; }
  .article-meta span:nth-child(2) { display: none; }
  .thesis-band, .loop-section, .compounding { padding-left: 18px; padding-right: 18px; }
  .loop-stage { min-height: 760px; }
  .orbit { min-height: 300px; }
  .ring-one { width: 330px; height: 150px; }
  .ring-two { width: 250px; height: 250px; }
  .orbit-core { width: 100px; height: 100px; border-radius: 25px; }
  .orbit-core span { font-size: 66px; }
  .orbit-pulse { top: calc(50% - 75px); left: calc(50% + 140px); }
  .loop-detail { grid-template-columns: 1fr; }
  .loop-detail p { grid-column: 1; }
  .decision-spec { grid-template-columns: 1fr; }
  .decision-spec > div, .decision-spec > div:nth-child(5) { grid-column: 1; border-right: 0; }
  .decision-spec .memory { grid-column: 1; flex-direction: column; align-items: flex-start; gap: 16px; }
  .decision-spec p { margin-top: 34px; }
  .ecosystem { padding: 100px 18px; gap: 40px; }
  footer { margin: 0 18px; }
}

@media (max-width: 440px) {
  .header-cta { display: none; }
  .site-header { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .orbit-pulse { animation: none; }
}