:root {
  --paper: #f6f1e6;
  --paper-2: #efe7d6;
  --ink: #1c1814;
  --muted: #7a6f5e;
  --line: rgba(28, 24, 20, 0.14);
  --line-strong: rgba(28, 24, 20, 0.32);
  --accent: oklch(0.55 0.13 35);
  --accent-soft: oklch(0.55 0.13 35 / 0.14);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  color: var(--ink);
  background: var(--paper);
  background-image:
    radial-gradient(circle at 12% 8%, oklch(0.55 0.13 35 / 0.05), transparent 40%),
    radial-gradient(circle at 90% 92%, oklch(0.55 0.10 35 / 0.04), transparent 50%);
  font-family: "Source Serif 4", Georgia, serif;
  font-feature-settings: "onum", "kern";
  overflow: hidden;
}

.shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  height: 100vh;
}

.stage {
  position: relative;
  min-width: 0;
  border-right: 1px solid var(--line);
  overflow: hidden;
}

.stage::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(28, 24, 20, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28, 24, 20, 0.025) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 88%);
}

/* Intro overlay */
.intro {
  position: absolute;
  inset: 0;
  z-index: 12;
  display: grid;
  place-items: center;
  background: var(--paper);
  transition: opacity 1100ms ease;
}
.intro.fade { opacity: 0; pointer-events: none; }
.intro-sparkles {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
  mask-image: radial-gradient(ellipse 60% 70% at center, transparent 0%, transparent 38%, black 78%, black 100%);
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at center, transparent 0%, transparent 38%, black 78%, black 100%);
}
.intro-sparkles canvas { display: block; width: 100% !important; height: 100% !important; }
.intro-inner { position: relative; z-index: 1; text-align: center; max-width: min(92vw, 1100px); padding: 24px; }
.intro-folio {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.intro-folio::before,
.intro-folio::after {
  content: "·";
  margin: 0 12px;
  color: var(--accent);
}
.intro-byline {
  margin-top: 14px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.intro-byline span { color: var(--accent); font-weight: 500; }
.intro-lede {
  margin: 28px auto 6px;
  max-width: min(86vw, 720px);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  opacity: 0.85;
  text-wrap: pretty;
}
.intro-lede em { font-style: italic; color: var(--accent); }
.intro-uses {
  margin: 28px auto 0;
  max-width: min(88vw, 820px);
  text-align: left;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 18px 0 8px;
}
.intro-uses-h {
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: center;
  margin-bottom: 14px;
}
.intro-uses-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.intro-uses-list li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  padding: 14px 4px;
  align-items: baseline;
}
.intro-uses-list li + li { border-top: 1px dotted var(--line); }
.intro-num {
  font-family: "Source Serif 4", serif;
  font-style: italic;
  font-size: 18px;
  color: var(--accent);
  text-align: center;
  line-height: 1;
}
.intro-uses-list b {
  font-weight: 600;
  font-style: italic;
  color: var(--ink);
}
.intro-use-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.intro-use-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink);
  opacity: 0.85;
  text-wrap: pretty;
}
.intro-use-text em {
  font-style: italic;
  color: var(--accent);
}
.intro-use-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.intro-use-actions .btn {
  height: 32px;
  padding: 0 12px;
  font-size: 9.5px;
}

.intro-disclaimer {
  margin: 26px auto 0;
  max-width: min(86vw, 720px);
  text-align: center;
}
.intro-disclaimer-h {
  font-family: "JetBrains Mono", monospace;
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.intro-disclaimer p {
  margin: 0 0 8px;
  font-family: "Source Serif 4", serif;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--muted);
  text-wrap: pretty;
}
.intro-disclaimer p em {
  font-style: italic;
  color: var(--ink);
}
.intro-buy {
  display: inline-flex;
  align-items: center;
  margin-top: 10px;
  padding: 7px 14px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent);
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}
.intro-buy:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}
.intro-credit {
  margin: 10px auto 0;
  max-width: min(86vw, 720px);
  text-align: center;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.intro-credit a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms ease;
}
.intro-credit a:hover {
  border-bottom-color: var(--accent);
}
.intro .folio {
  display: flex;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 32px;
}
.intro .folio span:nth-child(2) { color: var(--accent); }
.intro h1 {
  font-family: "Source Serif 4", serif;
  font-weight: 400;
  font-style: italic;
  font-size: clamp(3rem, 8vw, 6.4rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.intro h1 em {
  font-style: italic;
  color: var(--accent);
}
.intro .sub {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 18px 0 28px;
}
.intro .lede {
  font-size: 17px;
  line-height: 1.55;
  max-width: 460px;
  margin: 0 auto;
  color: var(--ink);
  opacity: 0.78;
}
.intro .enter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 18px;
  background: var(--ink);
  color: var(--paper);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1;
}
.intro .enter:hover { background: var(--accent); }
.intro-folio { animation: rise 700ms cubic-bezier(.2, .7, .2, 1) both; }
.intro h1 { animation: rise 900ms 80ms cubic-bezier(.2, .7, .2, 1) both; }
.intro-byline { animation: rise 800ms 180ms cubic-bezier(.2, .7, .2, 1) both; }
.intro-lede { animation: rise 900ms 260ms cubic-bezier(.2, .7, .2, 1) both; }
.intro-uses { animation: rise 900ms 360ms cubic-bezier(.2, .7, .2, 1) both; }
.intro .enter { animation: rise 900ms 480ms cubic-bezier(.2, .7, .2, 1) both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Top chrome over the graph */
.topbar {
  position: absolute;
  top: 22px;
  left: 28px;
  right: 28px;
  z-index: 5;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  pointer-events: none;
}
.colophon {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.home-btn {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px 5px 8px;
  margin-bottom: 6px;
  background: rgba(255, 252, 244, 0.7);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}
.home-btn:hover {
  color: var(--ink);
  border-color: var(--line-strong);
  background: rgba(255, 252, 244, 0.95);
}
.home-btn-arrow {
  font-size: 12px;
  letter-spacing: 0;
  line-height: 1;
}
.colophon .crumb {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  gap: 10px;
  align-items: center;
}
.colophon .crumb::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--line-strong);
}
.colophon .title {
  font-family: "Source Serif 4", serif;
  font-weight: 400;
  font-style: italic;
  font-size: 28px;
  line-height: 1;
  letter-spacing: -0.01em;
  margin-top: 4px;
}
.actions-wrap {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}
.actions-caption {
  font-family: "JetBrains Mono", monospace;
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.btn {
  height: 36px;
  padding: 0 14px;
  background: rgba(255, 252, 244, 0.86);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 160ms ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn:hover { background: var(--paper-2); border-color: var(--line-strong); }
.btn.copied { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.btn--small {
  height: 30px;
  padding: 0 11px;
  font-size: 9.5px;
  letter-spacing: 0.12em;
  gap: 6px;
}
.btn-icon {
  width: 14px;
  height: 14px;
  flex: none;
  display: inline-block;
}
.btn--small .btn-icon {
  width: 12px;
  height: 12px;
}
.btn-icon--claude { color: #d97757; }
.btn-icon--openai { color: var(--ink); }
.btn--brand-claude:hover { border-color: rgba(217, 119, 87, 0.55); }
.btn--brand-openai:hover { border-color: var(--line-strong); }
.icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: rgba(255, 252, 244, 0.86);
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  color: var(--ink);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
}
.icon:hover { background: var(--paper-2); }

#graphCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: grab;
}
#graphCanvas.dragging { cursor: grabbing; }

/* Bottom legend */
.legend {
  position: absolute;
  left: 28px;
  bottom: 22px;
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  max-width: calc(100% - 56px);
}
.legend-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  padding-left: 2px;
}
.legend-items {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.legend .item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  background: rgba(255, 252, 244, 0.7);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.legend .swatch { width: 7px; height: 7px; border-radius: 50%; }

/* Marginalia panel */
aside {
  position: relative;
  z-index: 8;
  height: 100vh;
  padding: 28px 28px 28px 30px;
  overflow: auto;
  background: var(--paper-2);
  border-left: 1px solid var(--line);
}
aside::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0.55;
}
.folio-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
  margin-bottom: 20px;
}
.folio-line strong { color: var(--accent); font-weight: 500; }

.section {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.section:last-child { border-bottom: 0; }
.section-h {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}
.section-h .num {
  font-style: italic;
  font-family: "Source Serif 4", serif;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  font-size: 14px;
  color: var(--accent);
}

/* Mode toggle */
.modes {
  display: inline-flex;
  padding: 3px;
  background: rgba(255, 252, 244, 0.7);
  border: 1px solid var(--line);
  border-radius: 999px;
}
.modes button {
  padding: 6px 12px;
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.modes button[aria-selected="true"] { background: var(--ink); color: var(--paper); }

.search {
  width: 100%;
  margin-top: 12px;
  padding: 12px 14px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: "Source Serif 4", serif;
  font-size: 14px;
}
.search:focus {
  outline: 2px solid var(--accent-soft);
  outline-offset: 1px;
  border-color: var(--accent);
}

.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pill {
  padding: 5px 10px;
  background: rgba(255, 252, 244, 0.7);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-family: "Source Serif 4", serif;
  font-size: 13px;
  color: var(--ink);
}
.pill .ct {
  margin-left: 6px;
  padding: 0 6px;
  background: rgba(28, 24, 20, 0.08);
  border-radius: 999px;
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  color: var(--muted);
}
.pill[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}
.pill[aria-pressed="true"] .ct {
  background: rgba(255, 255, 255, 0.18);
  color: var(--paper);
}
.pill[aria-pressed="true"] { animation: pop 320ms cubic-bezier(.2, .9, .3, 1.2); }
@keyframes pop {
  0%   { transform: scale(0.92); }
  60%  { transform: scale(1.04); }
  100% { transform: scale(1); }
}

.types { display: flex; flex-wrap: wrap; gap: 6px; }
.type {
  padding: 4px 9px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--muted);
  cursor: pointer;
}
.type[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
}
.metrics > div {
  padding: 12px 10px;
  border-right: 1px solid var(--line);
}
.metrics > div:last-child { border-right: 0; }
.metrics b {
  display: block;
  font-family: "Source Serif 4", serif;
  font-style: italic;
  font-weight: 400;
  font-size: 28px;
  line-height: 1;
}
.metrics small {
  display: block;
  margin-top: 4px;
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Inspector */
.inspector { padding-bottom: 60px; }
.inspector .swap {
  transition: opacity 280ms ease, transform 360ms cubic-bezier(.2, .7, .2, 1);
}
.inspector .swap.swapping { opacity: 0; transform: translateY(6px); }
.inspector .kicker {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.inspector h2 {
  font-family: "Source Serif 4", serif;
  font-weight: 400;
  font-size: 30px;
  line-height: 1.05;
  margin: 6px 0 12px;
  letter-spacing: -0.01em;
}
.inspector .desc {
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  opacity: 0.85;
  margin-bottom: 14px;
  text-wrap: pretty;
}
.inspector .desc::first-letter {
  font-family: "Source Serif 4", serif;
  font-weight: 600;
  float: left;
  font-size: 44px;
  line-height: 0.9;
  margin: 4px 8px 0 0;
  color: var(--accent);
}

.meta { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.meta .chip {
  padding: 4px 9px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.type-breakdown {
  margin: 0 0 14px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.6;
}
.type-breakdown b {
  font-weight: 500;
  color: var(--ink);
}

.bridge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
}
.bridge-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.bridge-chips {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
}
.bridge-chip {
  padding: 3px 9px;
  background: rgba(255, 252, 244, 0.7);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-family: "Source Serif 4", serif;
  font-size: 12px;
  color: var(--ink);
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}
.bridge-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.conns { display: flex; flex-direction: column; }
.conn {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 6px 12px;
  padding: 10px 0;
  border-bottom: 1px dotted var(--line);
  cursor: pointer;
  background: transparent;
  border-left: 0;
  border-right: 0;
  border-top: 0;
  text-align: left;
  width: 100%;
  transition: background 160ms ease, padding-left 160ms ease;
}
.conn:last-child { border-bottom: 0; }
.conn:hover {
  background: rgba(28, 24, 20, 0.04);
  padding-left: 6px;
}
.conn:hover .conn-name { color: var(--accent); }
.conn-name {
  font-family: "Source Serif 4", serif;
  font-size: 15px;
  color: var(--ink);
  transition: color 120ms;
}
.conn-rel {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--muted);
  flex-shrink: 0;
}
.conn-preview {
  grid-column: 1 / -1;
  font-family: "Source Serif 4", serif;
  font-size: 13px;
  line-height: 1.4;
  color: var(--muted);
  margin: 0;
  text-wrap: pretty;
}

.inspector-footer {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pill,
.type,
.modes button,
.btn,
.icon {
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms ease;
}
.pill:hover,
.type:hover { transform: translateY(-1px); }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 4px; }

/* Reading companion — slide-in overlay panel */
.companion-backdrop {
  position: fixed;
  inset: 0;
  z-index: 18;
  background: rgba(28, 24, 20, 0.32);
  backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity 240ms ease;
  pointer-events: none;
}
.companion-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}
.companion {
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  width: min(560px, 100vw);
  height: 100vh;
  background: var(--paper);
  border-left: 1px solid var(--line);
  box-shadow: -24px 0 60px rgba(28, 24, 20, 0.16);
  display: grid;
  grid-template-rows: auto 1fr;
  transform: translateX(100%);
  transition: transform 320ms cubic-bezier(.2, .7, .2, 1);
}
.companion.open { transform: translateX(0); }
.companion[hidden] { display: none; }
.companion-backdrop[hidden] { display: none; }

.companion-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 28px 22px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 8% 10%, oklch(0.55 0.13 35 / 0.06), transparent 40%),
    var(--paper);
}
.companion-eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.companion-title {
  font-family: "Source Serif 4", serif;
  font-weight: 400;
  font-size: 28px;
  line-height: 1;
  margin: 0;
  letter-spacing: -0.01em;
}
.companion-title em { color: var(--accent); font-style: italic; }
.companion-byline {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 8px;
}
.companion-close {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: rgba(255, 252, 244, 0.86);
  border: 1px solid var(--line);
  border-radius: 50%;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  color: var(--ink);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease;
}
.companion-close:hover { background: var(--paper-2); border-color: var(--line-strong); }

.companion-body {
  overflow-y: auto;
  padding: 22px 28px 60px;
}
.companion-empty {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 40px 0;
  text-align: center;
}

.companion-part {
  margin-bottom: 26px;
}
.companion-part-h {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
}
.companion-part-num {
  font-family: "Source Serif 4", serif;
  font-style: italic;
  font-size: 22px;
  color: var(--accent);
  line-height: 1;
}
.companion-part-title {
  font-family: "Source Serif 4", serif;
  font-weight: 400;
  font-size: 22px;
  line-height: 1.1;
  margin: 0;
}
.companion-part-summary {
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
  opacity: 0.78;
  margin: -4px 0 14px 0;
  text-wrap: pretty;
}
.companion-chapter {
  padding: 12px 0;
  border-bottom: 1px dotted var(--line);
}
.companion-chapter:last-child { border-bottom: 0; }
.companion-chapter-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 6px;
}
.companion-chapter-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--muted);
  flex-shrink: 0;
  width: 38px;
}
.companion-chapter-title {
  font-family: "Source Serif 4", serif;
  font-weight: 500;
  font-size: 15px;
  line-height: 1.3;
  color: var(--ink);
  min-width: 0;
  flex: 1;
}
.companion-chapter-page {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--muted);
  flex-shrink: 0;
  white-space: nowrap;
}
.companion-chapter-summary {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink);
  opacity: 0.78;
  margin: 0 0 8px 48px;
  text-wrap: pretty;
}
.companion-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-left: 48px;
}
.companion-chip {
  padding: 3px 9px;
  background: rgba(255, 252, 244, 0.7);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: "Source Serif 4", serif;
  font-size: 12px;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 160ms ease, color 160ms ease, background 160ms ease;
}
.companion-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.companion-chip-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-right: 6px;
}

.companion-themes {
  margin-top: 38px;
  padding-top: 22px;
  border-top: 2px solid var(--line);
}
.companion-themes-h {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
}
.companion-theme-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}
.companion-theme-row {
  border-top: 1px dotted var(--line);
}
.companion-theme-row:last-child { border-bottom: 1px dotted var(--line); }
.companion-theme-trigger {
  display: grid;
  grid-template-columns: 30px 1fr auto;
  gap: 14px;
  align-items: baseline;
  width: 100%;
  padding: 14px 4px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  color: var(--ink);
  transition: background 140ms ease;
}
.companion-theme-trigger:hover {
  background: rgba(160, 74, 37, 0.04);
}
.companion-theme-trigger:hover .companion-theme-row-title { color: var(--accent); }
.companion-theme-trigger:hover .companion-theme-arrow { color: var(--accent); transform: translateX(2px); }
.companion-theme-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--muted);
  line-height: 1.4;
}
.companion-theme-row-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.companion-theme-row-title {
  font-family: "Source Serif 4", serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.2;
  color: var(--ink);
  transition: color 140ms ease;
}
.companion-theme-row-headline {
  font-family: "Source Serif 4", serif;
  font-style: italic;
  font-size: 13px;
  line-height: 1.45;
  color: var(--ink);
  opacity: 0.72;
  text-wrap: pretty;
}
.companion-theme-row-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.companion-theme-count {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.companion-theme-arrow {
  font-family: "Source Serif 4", serif;
  font-size: 16px;
  color: var(--muted);
  transition: color 140ms ease, transform 140ms ease;
}
.companion-theme-label {
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.companion-theme-entities {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  font-family: "Source Serif 4", serif;
  font-size: 13px;
  color: var(--ink);
  opacity: 0.85;
}
.companion-theme-entities li::after {
  content: "·";
  margin-left: 12px;
  color: var(--muted);
}
.companion-theme-entities li:last-child::after { content: ""; }
.companion-chips--inline {
  margin-left: 0;
}

/* ---- Theme detail modal ----------------------------------------------- */
.theme-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 32px 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
}
.theme-modal.open {
  opacity: 1;
  pointer-events: auto;
}
.theme-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(28, 24, 20, 0.55);
  backdrop-filter: blur(2px);
  cursor: pointer;
}
.theme-modal-panel {
  position: relative;
  z-index: 1;
  width: min(640px, 100%);
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 30px 36px 28px;
  box-shadow: 0 24px 60px rgba(28, 24, 20, 0.28);
  transform: translateY(8px);
  transition: transform 220ms ease;
}
.theme-modal.open .theme-modal-panel {
  transform: translateY(0);
}
.theme-modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 18px;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  transition: color 140ms ease, border-color 140ms ease;
}
.theme-modal-close:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.theme-modal-head {
  margin-bottom: 14px;
}
.theme-modal-kicker {
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.theme-modal-title {
  font-family: "Source Serif 4", serif;
  font-weight: 400;
  font-size: 28px;
  line-height: 1.1;
  margin: 0 0 10px;
  color: var(--ink);
}
.theme-modal-headline {
  font-family: "Source Serif 4", serif;
  font-style: italic;
  font-size: 15px;
  line-height: 1.45;
  color: var(--ink);
  opacity: 0.78;
  margin: 0;
  text-wrap: pretty;
}
.theme-modal-summary {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  margin: 14px 0 18px;
  text-wrap: pretty;
}
.theme-modal-section {
  margin: 14px 0;
  padding-top: 12px;
  border-top: 1px dotted var(--line);
}
.theme-modal-actions {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: flex-end;
}
.theme-modal-open {
  height: 36px;
  padding: 0 16px;
  background: var(--ink);
  color: var(--paper);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-family: "JetBrains Mono", monospace;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.theme-modal-open:hover { background: var(--accent); }

@media (max-width: 900px) {
  body { overflow: auto; }
  .shell {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 100vh;
  }
  .stage {
    height: 68vh;
    min-height: 520px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  aside { height: auto; }
  .colophon .title { font-size: 22px; }
  .actions { flex-wrap: wrap; }
  .intro {
    position: fixed;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    place-items: start center;
  }
  .intro-inner { padding: 32px 20px 56px; }
}