:root {
  color-scheme: light;
  --ink: #17201d;
  --copy: #3f4b46;
  --muted: #5b6661;
  --paper: #f5f1e8;
  --paper-deep: #ebe3d5;
  --surface: rgba(255, 255, 255, 0.68);
  --surface-strong: #fffdf8;
  --surface-soft: rgba(255, 255, 255, 0.42);
  --surface-medium: rgba(255, 255, 255, 0.48);
  --surface-hover: rgba(255, 255, 255, 0.5);
  --line: rgba(23, 32, 29, 0.14);
  --forest: #274f43;
  --forest-deep: #17382f;
  --forest-wash: rgba(39, 79, 67, 0.08);
  --sage: #9eb4a4;
  --sage-wash: rgba(158, 180, 164, 0.38);
  --ochre: #c47b35;
  --ochre-wash: rgba(196, 123, 53, 0.18);
  --neutral-wash: rgba(63, 75, 70, 0.12);
  --warning-ink: #71421a;
  --danger: #a53f3f;
  --danger-ink: #7c2727;
  --danger-wash: rgba(165, 63, 63, 0.13);
  --on-forest: #f5f1e8;
  --warm-glow: rgba(196, 123, 53, 0.16);
  --cool-glow: rgba(39, 79, 67, 0.13);
  --focus-ring: rgba(196, 123, 53, 0.55);
  --small-shadow: 0 10px 36px rgba(40, 50, 43, 0.055);
  --verdict-border: rgba(39, 79, 67, 0.24);
  --verdict-start: rgba(158, 180, 164, 0.2);
  --verdict-end: rgba(255, 255, 255, 0.52);
  --shadow: 0 24px 70px rgba(40, 50, 43, 0.12);
  --radius: 1.5rem;
  --max-width: 74rem;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --ink: #edf4ef;
  --copy: #c6d1cb;
  --muted: #a8b5ae;
  --paper: #101814;
  --paper-deep: #17231d;
  --surface: rgba(30, 46, 38, 0.78);
  --surface-strong: #19251f;
  --surface-soft: rgba(255, 255, 255, 0.045);
  --surface-medium: rgba(255, 255, 255, 0.065);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --line: rgba(226, 239, 231, 0.15);
  --forest: #9cc8b5;
  --forest-deep: #c9e0d5;
  --forest-wash: rgba(156, 200, 181, 0.1);
  --sage: #718f7e;
  --sage-wash: rgba(113, 143, 126, 0.22);
  --ochre: #e0a363;
  --ochre-wash: rgba(224, 163, 99, 0.16);
  --neutral-wash: rgba(198, 209, 203, 0.1);
  --warning-ink: #f1bd86;
  --danger: #e27878;
  --danger-ink: #ffadad;
  --danger-wash: rgba(226, 120, 120, 0.15);
  --on-forest: #101814;
  --warm-glow: rgba(224, 163, 99, 0.1);
  --cool-glow: rgba(113, 143, 126, 0.12);
  --focus-ring: rgba(224, 163, 99, 0.65);
  --small-shadow: 0 10px 36px rgba(0, 0, 0, 0.18);
  --verdict-border: rgba(156, 200, 181, 0.22);
  --verdict-start: rgba(113, 143, 126, 0.16);
  --verdict-end: rgba(255, 255, 255, 0.045);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 5%, var(--warm-glow), transparent 28rem),
    radial-gradient(circle at 92% 18%, var(--cool-glow), transparent 32rem),
    var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--forest);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--forest-deep);
}

a:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 4px;
  border-radius: 0.25rem;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 14ch;
  margin-bottom: 1.4rem;
  font-size: clamp(3rem, 7vw, 6.7rem);
}

h2 {
  margin-bottom: 0.85rem;
  font-size: clamp(2rem, 4vw, 3.6rem);
}

h3 {
  margin-bottom: 0.6rem;
  font-size: 1.55rem;
}

.site-shell {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5.75rem;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.4rem;
  height: 2.4rem;
  place-items: center;
  border-radius: 50%;
  color: var(--paper);
  background: var(--forest);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem 1.25rem;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--ink);
}

.theme-toggle {
  display: inline-flex;
  min-height: 2.35rem;
  align-items: center;
  gap: 0.42rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: var(--surface-soft);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 750;
  cursor: pointer;
}

.theme-toggle:hover {
  color: var(--ink);
  background: var(--surface-hover);
}

.theme-toggle:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 4px;
}

.theme-toggle-icon::before {
  display: block;
  width: 1em;
  content: "☾";
  font-size: 1.08rem;
  line-height: 1;
  text-align: center;
}

html[data-theme="dark"] .theme-toggle-icon::before {
  content: "☀";
}

main {
  padding-block: 4.5rem 6rem;
}

.eyebrow {
  margin-bottom: 1rem;
  color: var(--ochre);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.lede {
  max-width: 43rem;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.65fr);
  align-items: center;
  min-height: 37rem;
  gap: clamp(2.5rem, 7vw, 7rem);
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.15rem;
  border: 1px solid var(--forest);
  border-radius: 999px;
  color: var(--on-forest);
  background: var(--forest);
  font-weight: 750;
  text-decoration: none;
}

.button:hover {
  color: var(--on-forest);
  background: var(--forest-deep);
}

.button.secondary {
  color: var(--forest);
  background: transparent;
}

.button.secondary:hover {
  color: var(--forest-deep);
  background: var(--surface-hover);
}

.portrait-card {
  position: relative;
  min-height: 31rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: calc(var(--radius) + 0.5rem);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.18), transparent 45%),
    linear-gradient(150deg, var(--sage), var(--forest));
  box-shadow: var(--shadow);
}

.portrait-pair {
  position: absolute;
  inset: 0;
}

.portrait-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--forest);
}

.portrait-pair img {
  width: 100%;
  height: 100%;
  min-height: 31rem;
  object-fit: cover;
  object-position: 50% 42%;
}

.portrait-pair img + img {
  border-left: 2px solid rgba(255, 255, 255, 0.72);
}

.portrait-image {
  width: 100%;
  height: 100%;
  min-height: 31rem;
  object-fit: cover;
}

.portrait-label {
  position: absolute;
  z-index: 1;
  right: 1.25rem;
  bottom: 1.25rem;
  left: 1.25rem;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 1rem;
  color: white;
  background: rgba(23, 56, 47, 0.72);
  backdrop-filter: blur(10px);
}

.portrait-label strong,
.portrait-label span {
  display: block;
}

.portrait-label span {
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.9rem;
}

.section {
  padding-block: 5rem;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 2rem;
}

.section-heading > div {
  max-width: 42rem;
}

.section-heading p {
  margin-bottom: 0;
  color: var(--muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  display: flex;
  min-height: 18rem;
  flex-direction: column;
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--small-shadow);
  backdrop-filter: blur(12px);
}

.card p {
  color: var(--muted);
}

.card-link {
  margin-top: auto;
  font-weight: 750;
}

.card-kicker,
.status {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 1.2rem;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  color: var(--forest-deep);
  background: var(--sage-wash);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.status {
  color: var(--warning-ink);
  background: var(--ochre-wash);
}

.page-intro {
  max-width: 55rem;
  padding-block: 3rem 4.5rem;
}

.page-intro h1 {
  max-width: 17ch;
  font-size: clamp(3rem, 6vw, 5.7rem);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(16rem, 0.55fr);
  align-items: start;
  gap: clamp(2.5rem, 6vw, 6rem);
}

.prose {
  max-width: 48rem;
}

.prose h2 {
  margin-top: 3.5rem;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
}

.prose h3 {
  margin-top: 2rem;
}

.prose p,
.prose li {
  color: var(--copy);
}

.prose blockquote {
  margin: 2.5rem 0;
  padding: 0.5rem 0 0.5rem 1.5rem;
  border-left: 4px solid var(--ochre);
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.35;
}

.sidebar {
  position: sticky;
  top: 2rem;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.sidebar h2 {
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.sidebar ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sidebar li + li {
  margin-top: 0.65rem;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 2rem 0;
  padding: 0;
  gap: 1rem;
  list-style: none;
}

.feature-list li {
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface-soft);
}

.feature-list strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--ink);
}

.steps {
  margin: 2rem 0;
  padding: 0;
  counter-reset: step;
  list-style: none;
}

.steps li {
  position: relative;
  min-height: 3.5rem;
  padding: 0.2rem 0 1.5rem 4rem;
  counter-increment: step;
}

.steps li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 2.65rem;
  height: 2.65rem;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: var(--forest);
  content: counter(step);
  font-weight: 800;
}

.note {
  margin-top: 3rem;
  padding: 1.25rem 1.4rem;
  border-left: 4px solid var(--sage);
  border-radius: 0 1rem 1rem 0;
  background: var(--surface-medium);
}

.ledger-intro h1 {
  max-width: 15ch;
}

.ledger-method {
  margin-top: 0;
}

.ledger-scorecard,
.forecast-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.ledger-scorecard article,
.forecast-grid article,
.indicator-list article {
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface-medium);
}

.ledger-scorecard h3 {
  margin-top: 0.85rem;
  font-size: 1.15rem;
}

.ledger-scorecard p,
.indicator-list p {
  margin-bottom: 0;
  font-size: 0.94rem;
}

.ledger-state {
  display: inline-flex;
  padding: 0.24rem 0.58rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.state-context {
  color: var(--copy);
  background: var(--neutral-wash);
}

.state-forecast {
  color: var(--forest-deep);
  background: var(--sage-wash);
}

.state-update,
.state-partial {
  color: var(--warning-ink);
  background: var(--ochre-wash);
}

.state-miss {
  color: var(--danger-ink);
  background: var(--danger-wash);
}

.ledger-timeline {
  margin-top: 2rem;
  border-left: 2px solid var(--line);
}

.ledger-entry {
  position: relative;
  padding: 0 0 3rem 2rem;
}

.ledger-entry::before {
  position: absolute;
  top: 0.45rem;
  left: -0.48rem;
  width: 0.8rem;
  height: 0.8rem;
  border: 3px solid var(--paper);
  border-radius: 50%;
  background: var(--sage);
  content: "";
}

.ledger-entry-current::before {
  background: var(--danger);
}

.ledger-entry h3 {
  margin-top: 0.8rem;
}

.ledger-date {
  margin-bottom: 0.55rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.04em;
}

.probability-list {
  display: grid;
  margin: 1.25rem 0;
  gap: 0.55rem;
}

.probability-list div {
  display: grid;
  grid-template-columns: 5rem 1fr;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
  color: var(--copy);
}

.probability-list span {
  color: var(--forest-deep);
  font-weight: 850;
}

.forecast-grid {
  margin: 2rem 0 3rem;
}

.forecast-grid article {
  display: flex;
  min-height: 9rem;
  flex-direction: column;
  justify-content: space-between;
}

.forecast-grid strong {
  color: var(--forest);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.6rem;
  line-height: 1;
}

.forecast-grid span {
  color: var(--copy);
  font-weight: 700;
}

.indicator-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.5rem;
  gap: 1rem;
}

.indicator-list h4 {
  margin: 0 0 0.5rem;
  color: var(--ink);
  font-size: 1rem;
}

.source-list a {
  overflow-wrap: anywhere;
}

.research-intro h1 {
  max-width: 16ch;
}

.research-verdict {
  margin-bottom: 4rem;
  padding: clamp(1.4rem, 4vw, 2.2rem);
  border: 1px solid var(--verdict-border);
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, var(--verdict-start), var(--verdict-end));
}

.research-verdict h2 {
  margin-top: 0;
}

.research-domain {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

.domain-heading {
  display: grid;
  justify-items: start;
  gap: 0.8rem;
}

.domain-heading h3 {
  max-width: 24ch;
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
}

.evidence-tag {
  display: inline-flex;
  padding: 0.24rem 0.58rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tag-support {
  color: var(--forest-deep);
  background: var(--sage-wash);
}

.tag-mixed {
  color: var(--warning-ink);
  background: var(--ochre-wash);
}

.tag-reconsider {
  color: var(--danger-ink);
  background: var(--danger-wash);
}

.source-annotations {
  display: grid;
  margin: 1.4rem 0;
  gap: 0.65rem;
}

.source-annotations p {
  margin: 0;
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--sage);
  border-radius: 0 0.75rem 0.75rem 0;
  background: var(--surface-soft);
  font-size: 0.92rem;
}

.source-annotations a {
  font-weight: 750;
}

.research-implication {
  padding: 1rem 1.1rem;
  border-radius: 0.85rem;
  background: var(--forest-wash);
}

.revision-list {
  display: grid;
  margin: 2rem 0;
  padding: 0;
  gap: 0.8rem;
  counter-reset: revision;
  list-style: none;
}

.revision-list li {
  position: relative;
  padding: 1rem 1rem 1rem 3.8rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface-soft);
  counter-increment: revision;
}

.revision-list li::before {
  position: absolute;
  top: 0.95rem;
  left: 1rem;
  display: grid;
  width: 1.9rem;
  height: 1.9rem;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: var(--forest);
  content: counter(revision);
  font-size: 0.78rem;
  font-weight: 850;
}

.agenda-list li + li {
  margin-top: 0.65rem;
}

.sidebar a {
  color: inherit;
}

.sidebar-rule {
  margin: 1.2rem 0;
  border-top: 1px solid var(--line);
}

.sidebar-small {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer {
  padding-block: 2.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-inner p {
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 1.1rem;
}

@media (max-width: 52rem) {
  .hero,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 2rem;
  }

  .portrait-card {
    min-height: 24rem;
  }

  .portrait-image {
    min-height: 24rem;
  }

  .portrait-pair img {
    min-height: 24rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .ledger-scorecard,
  .forecast-grid {
    grid-template-columns: 1fr;
  }

  .indicator-list {
    grid-template-columns: 1fr;
  }

  .card {
    min-height: 0;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 38rem) {
  .site-header,
  .section-heading,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header {
    padding-block: 1.25rem;
  }

  .site-nav {
    justify-content: flex-start;
  }

  main {
    padding-top: 2rem;
  }

  .hero {
    min-height: auto;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}