:root {
  --bg: #fbfbfa;
  --paper: #ffffff;
  --ink: #161917;
  --muted: #646b66;
  --line: #d8ddd8;
  --line-strong: #aab4ac;
  --green: #0f4b33;
  --green-soft: #e8f1eb;
  --gold: #a86f18;
  --gold-soft: #fff4de;
  --red: #a73c35;
  --red-soft: #fff0ee;
  --blue: #254c73;
  --blue-soft: #eef5fb;
  --shadow: 0 16px 36px rgba(26, 32, 28, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.58;
}

a {
  color: var(--green);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 28px;
  background: rgba(251, 251, 250, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: #fff;
  background: var(--green);
  border-radius: 6px;
  font-family: Georgia, serif;
  font-size: 22px;
  font-weight: 700;
}

.brand strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 21px;
  letter-spacing: 0;
  text-transform: none;
}

.brand-copy,
.brand-tagline {
  display: block;
}

.brand-name {
  display: inline-flex;
  align-items: baseline;
}

.brand-name span {
  display: inline;
  margin-top: 0;
  font-size: inherit;
  letter-spacing: inherit;
}

.brand-name .brand-on {
  color: var(--gold);
}

.brand-name .brand-reason {
  color: var(--green);
}

.brand-tagline {
  margin-top: -2px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--green);
  font-weight: 700;
}

.page-shell {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr) 300px;
  gap: 0;
  max-width: 1600px;
  margin: 0 auto;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  background: var(--paper);
}

.toc,
.analysis-rail {
  position: sticky;
  top: 65px;
  align-self: start;
  height: calc(100vh - 65px);
  overflow: auto;
  padding: 32px 26px;
  background: #fbfbfa;
}

.toc {
  border-right: 1px solid var(--line);
}

.analysis-rail {
  border-left: 1px solid var(--line);
}

.rail-title,
.toc-title,
.section-kicker {
  margin: 0 0 16px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.toc ol {
  display: grid;
  gap: 8px;
  padding: 0 0 0 18px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.toc a {
  color: inherit;
  text-decoration: none;
}

.toc a:hover {
  color: var(--green);
}

.article {
  min-width: 0;
  padding: 40px 36px 80px;
}

.article-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line-strong);
}

.date {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.08;
}

h1 {
  max-width: 920px;
  margin: 0 0 16px;
  font-size: 52px;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 18px;
  font-size: 34px;
}

h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.lede {
  max-width: 840px;
  margin: 18px 0 0;
  color: #333a35;
  font-size: 19px;
}

.meta-list {
  display: grid;
  gap: 6px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.meta-list div {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 12px;
}

.meta-list dt {
  color: var(--ink);
  font-weight: 700;
}

.meta-list dd {
  margin: 0;
}

.hero-asset {
  align-self: start;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8faf8;
}

.hero-asset img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-header .hero-asset {
  max-width: 460px;
}

.quote-strip,
.method-strip,
.card-grid,
.tag-grid {
  display: grid;
  gap: 14px;
}

.quote-strip {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 28px 0;
}

.quote-chip,
.method-card,
.section-panel,
.prompt-box,
.rail-box,
.claim-table,
.formal-block,
.source-list,
.research-anchors,
.status-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.quote-chip {
  min-height: 116px;
  padding: 16px;
}

.quote-chip strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  font-weight: 500;
}

.quote-chip span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
}

.section-panel {
  margin-top: 30px;
  padding: 28px;
}

.section-panel > p {
  max-width: 880px;
}

.method-strip {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  padding: 20px 0 28px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.method-card {
  padding: 16px;
}

.method-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--green);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.method-card p,
.rail-box p,
.status-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.claim-table {
  display: table;
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
}

.table-scroll {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.table-scroll .claim-table {
  border: 0;
  border-radius: 0;
}

.claim-table th,
.claim-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

.claim-table th {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: #f6f7f5;
}

.claim-table tr:last-child td {
  border-bottom: 0;
}

.source-map-table {
  table-layout: fixed;
}

.source-map-table td {
  font-size: 13px;
}

.source-map-table td:first-child {
  font-weight: 700;
}

.source-map-table a {
  font-weight: 700;
}

.badge,
.link-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 4px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
  font-size: 12px;
  line-height: 1.2;
  text-decoration: none;
}

.badge.red,
.link-pill.red {
  border-color: #e0aaa5;
  background: var(--red-soft);
}

.badge.gold,
.link-pill.gold {
  border-color: #ecd099;
  background: var(--gold-soft);
}

.badge.blue,
.link-pill.blue {
  border-color: #bdd1e4;
  background: var(--blue-soft);
}

.research-anchors {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 18px 0;
  padding: 12px;
  background: #fbfcfb;
}

.research-anchors strong {
  color: var(--green);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.research-anchors .link-pill {
  min-height: 26px;
}

.source-note {
  flex-basis: 100%;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.formal-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 0;
  margin: 18px 0;
  overflow: hidden;
}

.formal-block > div {
  min-width: 0;
  padding: 18px;
}

.formal-block > div + div {
  border-left: 1px solid var(--line);
  background: #fbfcfb;
}

.logic {
  overflow-x: auto;
  max-width: 100%;
  margin: 8px 0 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f6f7f5;
  font-size: 15px;
  line-height: 1.55;
}

.logic mjx-container {
  margin: 0 !important;
  min-width: max-content;
}

.note {
  position: relative;
  display: inline-block;
  color: var(--green);
  font-weight: 800;
  cursor: help;
}

.note:focus {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.popover {
  position: absolute;
  display: none;
  left: 50%;
  bottom: 1.5em;
  z-index: 30;
  width: min(520px, calc(100vw - 40px));
  max-height: min(58vh, 420px);
  overflow-y: auto;
  padding: 14px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  box-shadow: var(--shadow);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
  text-align: left;
  transform: translateX(-50%);
  pointer-events: auto;
}

.note:hover .popover,
.note:focus .popover {
  display: block;
  transform: translateX(-50%) translateY(0);
}

.tag-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rail-box,
.status-card,
.source-list {
  padding: 16px;
  margin-bottom: 18px;
}

.rail-box h3,
.source-list h3,
.status-card h3 {
  margin: 0 0 10px;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  color: var(--green);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.rail-box ul,
.source-list ul {
  display: grid;
  gap: 10px;
  padding-left: 18px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.prompt-box {
  margin-top: 22px;
  overflow: hidden;
}

.prompt-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  background: #f6f7f5;
}

.prompt-header h3 {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  color: var(--green);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.prompt-text {
  max-height: 520px;
  overflow: auto;
  margin: 0;
  padding: 18px;
  white-space: pre-wrap;
}

.copy-button,
.primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid var(--green);
  border-radius: 6px;
  color: #fff;
  background: var(--green);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.copy-button.copied {
  background: #27684a;
}

.primary-link.secondary {
  color: var(--green);
  background: #fff;
}

.footer {
  padding: 32px 48px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.index-shell {
  max-width: 1160px;
  margin: 0 auto;
  padding: 64px 28px 90px;
}

.index-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 36px;
  align-items: start;
  padding-bottom: 42px;
  border-bottom: 1px solid var(--line);
}

.index-hero h1 {
  font-size: 58px;
}

.episode-card {
  display: grid;
  gap: 18px;
  margin-top: 30px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.episode-card h2 {
  margin-bottom: 0;
}

.episode-card .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 1180px) {
  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 30px;
  }

  .index-hero h1 {
    font-size: 50px;
  }

  .page-shell {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .analysis-rail {
    position: static;
    grid-column: 1 / -1;
    height: auto;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 860px) {
  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 25px;
  }

  h3 {
    font-size: 17px;
  }

  .index-hero h1 {
    font-size: 38px;
  }

  .site-header,
  .site-nav,
  .article-header,
  .quote-strip,
  .method-strip,
  .formal-block,
  .index-hero {
    grid-template-columns: 1fr;
  }

  .site-header,
  .site-nav {
    align-items: flex-start;
  }

  .site-header {
    position: static;
    flex-direction: column;
  }

  .site-nav {
    display: grid;
    gap: 10px;
  }

  .page-shell {
    display: block;
    border: 0;
  }

  .toc {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .article {
    padding: 28px 20px 56px;
  }

  .formal-block > div + div {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .popover {
    position: fixed;
    right: 20px;
    bottom: 20px;
    left: 20px;
    width: auto;
    max-height: 48vh;
    transform: none;
  }

  .note:hover .popover,
  .note:focus .popover {
    transform: none;
  }

  .table-scroll .claim-table {
    min-width: 720px;
  }

  .table-scroll .source-map-table {
    min-width: 880px;
  }

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