/* ========================================================================
   AI Observatory — interactive companion
   Editorial scientific aesthetic: parchment + ink, single rust accent,
   serif headlines (Source Serif), sans body (Inter), mono data (JetBrains).
   ======================================================================== */

:root {
  /* Surface: porcelain — edit themes.js THEME_CONFIG to switch */
  --bg:        #ffffff;
  --bg-deep:   #f3f3f1;
  --bg-card:   #ffffff;        /* cardSurface: none → matches --bg */
  --ink:       #0a0a08;
  --ink-soft:  #3a3833;
  --ink-mute:  #7a7770;
  --rule:      #0a0a0814;
  --rule-strong:#0a0a0826;
  --accent:    #0a0a08;        /* accent: black */
  --header-bg: rgba(255, 255, 255, 0.92);
  --accent-2:  #3c6e71;   /* dark teal */
  --accent-3:  #7a5c2e;   /* ochre */
  --accent-4:  #4a4e69;   /* slate plum */
  --accent-5:  #6b7a4f;   /* olive */
  --accent-6:  #2f5d50;   /* deep teal */
  --accent-7:  #5c4a6e;   /* aubergine */
  --shadow:    0 1px 0 #0a0a080e, 0 12px 28px -18px #0a0a0838;
  --max-w:     1180px;
  --serif:     "Source Serif 4", "Source Serif Pro", "Iowan Old Style", Georgia, serif;
  --sans:      "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:      "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Card surfaces — themes.js toggles --card-elevation */
.src-card, .hero-tldr, .heatmap-wrap, .heatmap-aside, .mv-block, .time-focus,
.tl-card, .personas-left, .persona-card, .ridge-row, .coda-cite, .ex-controls,
.drill-left, .drill-right, .tax-card, .level-card, .persona-pick,
.persona-detail-l, .persona-signature, .atlas-map, .atlas-fam-detail,
.atlas-search-wrap, .atlas-result-fam, .atlas-empty, .atlas-tree-group,
.src-card-deep, .src-table {
  box-shadow: var(--card-elevation, none);
}

/* Dark-mode hardening */
:root[data-dark="1"] .persona-prompts li { background: var(--bg-deep); }
:root[data-dark="1"] .cite-block        { background: var(--bg-deep); }
:root[data-dark="1"] .input,
:root[data-dark="1"] .select            { background: var(--bg-deep); color: var(--ink); }

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  /* tintOverlay: true — porcelain bgDeep; themes.js overrides this when THEME_CONFIG changes */
  background-image:
    radial-gradient(circle at 20% 0%, #f3f3f180 0%, transparent 55%),
    radial-gradient(circle at 80% 100%, #f3f3f1a0 0%, transparent 50%);
  background-attachment: fixed;
}

.mono { font-family: var(--mono); font-feature-settings: "ss01"; }
.num { text-align: right; }

a { color: inherit; }

/* ========================================================================
   Header
   ======================================================================== */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--header-bg, rgba(244, 240, 230, 0.92));
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--rule);
}

.site-header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 14px 32px;
  display: flex; align-items: center; justify-content: space-between;
}

.brand {
  display: flex; align-items: center; gap: 12px;
  cursor: pointer;
}
.brand-mark {
  width: 32px; height: 32px;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--bg-card);
}
.brand-name {
  font-family: var(--serif);
  font-weight: 600; font-size: 17px; letter-spacing: -0.01em;
}
.brand-sub {
  font-size: 10px; color: var(--ink-mute); letter-spacing: 0.06em; text-transform: lowercase;
  margin-top: 1px;
}

.site-nav { display: flex; gap: 4px; }
.nav-btn {
  padding: 7px 14px;
  font-family: var(--sans); font-size: 13px; font-weight: 500;
  background: transparent; border: 1px solid transparent; color: var(--ink-soft);
  border-radius: 999px; cursor: pointer;
  transition: 120ms;
}
.nav-btn:hover { background: var(--bg-card); color: var(--ink); }
.nav-btn.is-active {
  background: var(--ink); color: var(--bg);
  border-color: var(--ink);
}

.site-subnav {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px 10px;
  display: flex; flex-wrap: wrap; gap: 18px;
  border-top: 1px dashed var(--rule);
  padding-top: 10px;
}
.subnav-btn {
  background: transparent; border: none; cursor: pointer;
  font-family: var(--mono); font-size: 11px; color: var(--ink-soft);
  letter-spacing: 0.04em; padding: 0;
  text-transform: uppercase;
}
.subnav-btn:hover { color: var(--accent); text-decoration-color: var(--accent); }

/* ========================================================================
   Buttons
   ======================================================================== */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 22px;
  font-family: var(--sans); font-size: 14px; font-weight: 500;
  letter-spacing: -0.005em;
  border-radius: 999px; cursor: pointer;
  transition: 150ms;
}
.btn-primary {
  background: var(--ink); color: var(--bg); border: 1px solid var(--ink);
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); }
.btn-ghost {
  background: transparent; color: var(--ink); border: 1px solid var(--rule-strong);
}
.btn-ghost:hover { background: var(--bg-card); border-color: var(--ink); }

/* ========================================================================
   Hero
   ======================================================================== */

.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px 32px 100px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 920px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
}
.hero-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(46px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0 0 28px;
}
.hero-deck {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.45;
  color: var(--ink-soft);
  margin: 0 0 38px;
  max-width: 560px;
  text-wrap: pretty;
}
.hero-deck em { font-style: italic; color: var(--ink); }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
  margin-bottom: 32px;
}
.stat {
  padding: 18px 16px 16px 0;
  border-right: 1px solid var(--rule);
}
.stat:last-child { border-right: none; }
.stat-value {
  font-family: var(--serif); font-weight: 600;
  font-size: 28px; line-height: 1; letter-spacing: -0.015em;
}
.stat-prefix, .stat-suffix { font-size: 0.7em; color: var(--ink-mute); margin: 0 2px; }
.stat-label {
  font-size: 11px; color: var(--ink-mute);
  letter-spacing: 0.04em; text-transform: uppercase;
  margin-top: 8px;
  font-family: var(--mono);
}

.hero-cta { display: flex; gap: 14px; }

.hero-visual {
  display: flex; justify-content: center;
}
.constellation { width: 100%; max-width: 480px; height: auto; }
.const-label { font-family: var(--mono); font-size: 10px; fill: var(--ink); letter-spacing: 0.03em; }
.const-count { font-family: var(--mono); font-size: 9px; fill: var(--ink-mute); }

/* Spinning globe */
.globe { width: 100%; max-width: 480px; height: auto; display: block; }
.globe-ascii text { font-family: var(--mono); pointer-events: none; user-select: none; }
.globe-caption { font-family: var(--mono); font-size: 10px; fill: var(--ink); opacity: 0.35; letter-spacing: 0.03em; }

/* Geography bubble map */
.geo-map { margin: 0; width: 100%; max-width: 760px; }
.geo-svg { width: 100%; height: auto; display: block; }
.geo-label { font-family: var(--mono); font-size: 10px; fill: var(--ink); letter-spacing: 0.02em; }
.geo-label-count { font-family: var(--mono); font-size: 9px; fill: var(--ink-mute); }
.geo-caption { margin-top: 10px; padding-left: 4px; }
.geo-caption-h { font-family: var(--mono); font-size: 12px; color: var(--ink); }
.geo-caption-sub { font-family: var(--mono); font-size: 11px; color: var(--ink-mute); margin-top: 2px; }

/* DataSourceTimeline — scroll-reveal wrapper */
.tl-scroll-outer { position: relative; height: 500vh; margin-top: 12px; }
.tl-sticky-panel { position: sticky; top: 0; height: 100vh; display: flex; align-items: center; }
.tl-bar-row {
  opacity: 0;
  transform: scaleX(0);
  transform-box: fill-box;
  transform-origin: left center;
  transition: opacity 0.45s ease, transform 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.tl-bar-row--revealed { opacity: 1; transform: scaleX(1); }
@media (max-width: 960px) {
  .tl-scroll-outer { height: auto; }
  .tl-sticky-panel { position: static; height: auto; display: block; }
  .tl-bar-row { opacity: 1 !important; transform: none !important; }
}

/* Data source timeline (Gantt) */
.source-timeline { margin: 0; width: 100%; }
.tl-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) { .tl-layout { grid-template-columns: 1fr; } }
.tl-chart-wrap { min-width: 0; }
.tl-label { font-family: var(--mono); font-size: 10.5px; fill: var(--ink); letter-spacing: 0.01em; }
.tl-count { font-family: var(--mono); font-size: 9px; fill: var(--ink-mute); }
.tl-year  { font-family: var(--mono); font-size: 10px; fill: var(--ink-mute); letter-spacing: 0.04em; }
.tl-caption { margin-top: 10px; padding-left: 4px; }
.tl-caption-h   { font-family: var(--mono); font-size: 12px; color: var(--ink); }
.tl-caption-sub { font-family: var(--mono); font-size: 11px; color: var(--ink-mute); margin-top: 2px; }

.tl-detail-panel { min-width: 0; }

.tl-detail {
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--detail-color, var(--accent));
  border-radius: 4px;
  animation: fade-in 120ms ease;
}
@keyframes fade-in { from { opacity: 0; transform: translateX(4px); } to { opacity: 1; transform: none; } }
.tl-detail-header {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 10px; margin-bottom: 8px;
}
.tl-detail-name {
  font-family: var(--serif); font-size: 17px; font-weight: 600;
  color: var(--detail-color, var(--accent));
}
.tl-detail-link {
  font-family: var(--mono); font-size: 11px;
  color: var(--detail-color, var(--accent));
  text-decoration: none; white-space: nowrap;
  opacity: 0.75;
}
.tl-detail-link:hover { opacity: 1; text-decoration: underline; }
.tl-detail-meta {
  display: flex; flex-wrap: wrap; gap: 10px;
  font-size: 12px; color: var(--ink-soft); margin-bottom: 10px;
}
.tl-detail-counts {
  display: flex; gap: 20px;
  font-family: var(--serif); font-size: 14px; margin-bottom: 10px;
}
.tl-detail-counts strong { font-family: var(--mono); font-size: 16px; }
.tl-detail-note { font-size: 13px; line-height: 1.5; color: var(--ink-soft); margin: 0; }
.tl-detail-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; padding: 40px 20px;
  border: 1px dashed var(--rule-strong); border-radius: 4px;
  color: var(--ink-mute); text-align: center;
}
.tl-detail-empty-icon { font-size: 20px; opacity: 0.4; }
.tl-detail-empty-text { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; }

.hero-tldr {
  max-width: 760px;
  margin: 80px auto 0;
  padding: 28px 36px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
}
.tldr-label {
  font-family: var(--mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--accent); margin-bottom: 12px;
}
.hero-tldr p {
  font-family: var(--serif);
  font-size: 17px; line-height: 1.55;
  margin: 0; text-wrap: pretty;
}
.hero-tldr strong { color: var(--ink); font-weight: 600; }

/* ========================================================================
   Sources tour
   ======================================================================== */

.src-tour {
  max-width: var(--max-w);
  margin: 60px auto;
  padding: 60px 32px;
  border-top: 1px solid var(--rule-strong);
}

.eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent);
}

.act-head {
  max-width: 760px;
  margin: 0 0 44px;
}
.act-num {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 8px;
}
.act-title {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.05; letter-spacing: -0.02em;
  margin: 0 0 18px; text-wrap: balance;
}
.act-deck {
  font-family: var(--serif); font-size: 19px; line-height: 1.5;
  color: var(--ink-soft); margin: 0; text-wrap: pretty;
}
.act-deck em { font-style: italic; color: var(--ink); }
.act-deck strong { color: var(--ink); font-weight: 600; }

.src-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}
.src-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 18px 18px 16px;
  position: relative;
}
.src-card::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--src-color);
  border-radius: 4px 0 0 4px;
}
.src-card-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.src-card-name {
  font-family: var(--serif); font-weight: 600; font-size: 17px;
  letter-spacing: -0.01em;
}
.src-card-bar {
  display: inline-block; width: 24px; height: 6px;
  background: var(--src-color); border-radius: 1px;
}
.src-card-meta {
  display: flex; flex-direction: column; gap: 3px;
  margin-bottom: 12px;
}
.src-meta-line { font-size: 11px; color: var(--ink-mute); }
.src-card-counts {
  display: flex; flex-direction: column; gap: 3px;
  border-top: 1px solid var(--rule);
  padding-top: 10px; margin-bottom: 10px;
  font-size: 12px; color: var(--ink-soft);
}
.src-card-counts strong { color: var(--ink); font-weight: 600; font-family: var(--mono); }
.src-card-note {
  font-size: 13px; line-height: 1.45; color: var(--ink-soft);
  margin: 0; font-family: var(--serif); font-style: italic;
}

/* ========================================================================
   Act layout
   ======================================================================== */

.act {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px 32px;
  border-top: 1px solid var(--rule-strong);
}

.sub-h {
  font-family: var(--serif); font-weight: 600;
  font-size: 22px; letter-spacing: -0.015em;
  margin: 0 0 8px;
}
.sub-h-with-gap { margin-top: 60px; }
.sub-deck {
  font-family: var(--serif);
  font-size: 16px; line-height: 1.5; color: var(--ink-soft);
  margin: 0 0 24px; max-width: 720px; text-wrap: pretty;
}

/* Callouts */
.callouts-row {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
  margin-bottom: 40px;
}
.callout {
  padding: 20px 24px 20px 0;
  border-right: 1px solid var(--rule);
}
.callout:last-child { border-right: none; padding-right: 0; }
.callout-headline {
  font-family: var(--serif); font-weight: 600;
  font-size: 32px; letter-spacing: -0.02em; line-height: 1;
  color: var(--accent);
}
.callout-sub {
  margin-top: 10px;
  font-size: 13px; line-height: 1.4; color: var(--ink-soft);
}
@media (max-width: 720px) { .callouts-row { grid-template-columns: 1fr; } .callout { border-right: none; border-bottom: 1px solid var(--rule); } }

/* Tab bar */
.tab-bar {
  display: flex; flex-wrap: wrap; gap: 3px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0;
}
.tab {
  padding: 9px 16px;
  font-family: var(--sans); font-size: 13px; font-weight: 500;
  background: transparent; border: none; cursor: pointer;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: 120ms;
}
.tab:hover { color: var(--ink); }
.tab.is-active {
  color: var(--ink);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

/* ========================================================================
   Heatmap
   ======================================================================== */

.heatmap-container {
  width: 100%;
}

.sources-obs-label {
  font-family: var(--mono); font-size: 11px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-mute); margin: 24px 0 0;
}

/* Outer container: height drives scroll distance (160vh of scroll at 260vh height) */
.sources-scroll-outer {
  position: relative;
  height: 260vh;
  margin-top: 12px;
}

/* Sticky panel: full-width grid containing cards (left) + heatmap (right) */
.sources-sticky-panel {
  position: sticky;
  top: 0;
  height: 100vh;
  display: grid;
  grid-template-columns: minmax(240px, 280px) 1fr;
  gap: 0;
}

/* Left sub-panel: position:relative so absolute cards are contained */
.sources-cards-area {
  position: relative;
}

/* Cards: absolutely positioned, invisible + offset when inactive */
.obs-card {
  position: absolute;
  left: 0;
  right: 24px;
  padding: 18px 16px 18px 48px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-left: 3px solid transparent;
  border-radius: 6px;
  font-family: var(--serif);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateY(14px);
  transition: opacity 0.4s ease, transform 0.4s ease, border-color 0.3s ease, background 0.3s ease;
}
.obs-card.is-active {
  opacity: 1;
  pointer-events: auto;
  border-left-color: var(--accent-2);
  background: #3c6e7112;
  color: var(--ink);
  transform: translateY(-50%);
}

/* Y positions aligned with each row-group's vertical center in the heatmap */
/* Topic rows 0-1:    SVG center 68/392 = 17.3%  → panel ~37% */
/* Sensitive rows 2-5: SVG center 182/392 = 46.4% → panel ~49% */
/* Structure rows 6-8: SVG center 315/392 = 80.4% → panel ~62% */
.obs-card-0 { top: 37%; }
.obs-card-1 { top: 49%; }
.obs-card-2 { top: 62%; }

/* Counter number */
.obs-card-num {
  position: absolute;
  left: 0;
  top: 18px;
  width: 36px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--accent);
  text-align: right;
  padding-right: 10px;
  border-right: 1px solid var(--rule-strong);
  transition: color 0.3s ease;
}
.obs-card.is-active .obs-card-num { color: var(--accent-2); }
.obs-card strong { color: var(--ink); font-weight: 600; }

/* Right sub-panel: heatmap */
.sources-heatmap-area {
  display: flex;
  align-items: center;
  padding: 56px 0;
}
.sources-heatmap-area .heatmap-wrap { width: 100%; }

.sources-explorer-link { margin-top: 20px; }

/* Mobile: collapse to static stacked layout, all cards visible */
@media (max-width: 960px) {
  .sources-obs-label { display: none; }
  .sources-scroll-outer { height: auto; }
  .sources-sticky-panel {
    position: static;
    height: auto;
    grid-template-columns: 1fr;
  }
  .sources-cards-area {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-bottom: 24px;
  }
  .obs-card {
    position: static;
    transform: none !important;
    opacity: 1 !important;
    pointer-events: auto;
    right: auto;
  }
  .sources-heatmap-area { padding: 0; }
  .sources-heatmap-area .heatmap-wrap { width: auto; }
  .sources-explorer-link { margin-top: 20px; }
}

.heatmap-wrap {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px;
}
.vis-title {
  font-family: var(--serif); font-weight: 600; font-size: 18px;
  margin-bottom: 16px;
}
.heatmap-svg { width: 100%; height: auto; display: block; }

.hm-col-label, .hm-row-label, .hm-family-label, .hm-cell-text, .hm-spread-text {
  font-family: var(--mono);
}
.hm-col-label { font-size: 10px; fill: var(--ink); font-weight: 500; transition: fill 120ms, font-weight 120ms; }
.hm-col-label.is-hover { fill: var(--ink); font-weight: 700; }
.hm-row-label { font-size: 11px; fill: var(--ink-soft); transition: fill 120ms, font-weight 120ms; }
.hm-row-label.is-hover { fill: var(--ink); font-weight: 700; }
.hm-family-label { font-size: 9px; fill: var(--ink-mute); letter-spacing: 0.06em; text-transform: uppercase; }
.hm-cell-text { font-size: 10px; font-weight: 500; pointer-events: none; }
.hm-spread-text { font-size: 10px; fill: var(--ink-mute); }
.hm-col-rule { stroke: var(--rule); stroke-width: 0.5; }

/* Side tooltip */
.heatmap-aside {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px;
  position: sticky; top: 120px;
}
.hm-tip-source { margin-bottom: 10px; }
.hm-tip-feature {
  font-family: var(--serif); font-size: 16px; font-weight: 600;
  letter-spacing: -0.01em; margin-bottom: 10px;
}
.hm-tip-feature .mono { font-size: 11px; color: var(--accent); font-weight: 500; }
.hm-tip-val {
  font-family: var(--serif); font-weight: 600;
  font-size: 36px; letter-spacing: -0.02em;
  color: var(--accent); margin-bottom: 14px; line-height: 1;
}
.hm-tip-def { font-size: 13px; line-height: 1.5; color: var(--ink-soft); margin: 0; }
.hm-tip-empty { color: var(--ink-soft); }
.hm-tip-label {
  font-family: var(--mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--ink-mute); margin-bottom: 10px;
}
.hm-tip-empty p { font-size: 13px; line-height: 1.5; margin: 0 0 12px; }
.hm-tip-empty p:last-child { margin: 0; }
.hm-tip-note { color: var(--accent) !important; font-style: italic; }

/* Source badge */
.src-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 12px;
}
.src-swatch {
  width: 10px; height: 10px;
  border-radius: 2px;
  display: inline-block;
}

/* Act reading list */
.act-reading {
  margin-top: 40px;
  max-width: 760px;
}
.act-reading h3 {
  font-family: var(--serif); font-weight: 600;
  font-size: 20px; letter-spacing: -0.01em;
  margin: 0 0 16px;
}
.reading-list {
  list-style: none; padding: 0; margin: 0;
  counter-reset: rl;
}
.reading-list li {
  counter-increment: rl;
  padding-left: 44px; position: relative;
  margin-bottom: 18px;
  font-family: var(--serif); font-size: 16px; line-height: 1.55;
  color: var(--ink-soft);
  border-left: 3px solid transparent;
  padding-right: 12px;
  border-radius: 0 4px 4px 0;
  transition: border-color 0.35s ease, background 0.35s ease, color 0.2s ease;
}
.reading-list li.is-active {
  border-left-color: var(--accent-2);
  background: #3c6e7112;
  color: var(--ink);
}
.reading-list li.is-active::before { color: var(--accent-2); }
.reading-list li::before {
  content: counter(rl, decimal-leading-zero);
  position: absolute; left: 0; top: 2px;
  font-family: var(--mono); font-size: 11px;
  color: var(--accent); font-weight: 600;
  border-right: 1px solid var(--rule-strong);
  padding-right: 12px; margin-right: 12px;
  transition: color 0.35s ease;
}
.reading-list strong { color: var(--ink); font-weight: 600; }

/* ========================================================================
   Clio Act
   ======================================================================== */

.clio-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}
@media (max-width: 920px) { .clio-split { grid-template-columns: 1fr; } }

.clio-pane { }
.pane-h {
  font-family: var(--serif); font-weight: 600; font-size: 20px;
  letter-spacing: -0.01em; margin: 0 0 6px;
}
.pane-sub { font-size: 13px; line-height: 1.5; color: var(--ink-soft); margin: 0 0 20px; }

.clio-bars-legend {
  display: flex; gap: 22px; margin-bottom: 14px;
  font-family: var(--mono); font-size: 11px; color: var(--ink-soft);
}
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.legend-swatch { width: 12px; height: 12px; border-radius: 2px; display: inline-block; }
.legend-note { color: var(--ink-mute); font-style: italic; }

.clio-svg, .clio-gap-svg { width: 100%; height: auto; }
.clio-row-label { font-family: var(--mono); font-size: 11px; fill: var(--ink); }
.clio-val { font-family: var(--mono); font-size: 10px; }
.clio-dot-val { font-family: var(--mono); font-size: 11px; font-weight: 500; }

.axis-line { stroke: var(--ink); stroke-width: 0.6; }
.grid-line { stroke: var(--rule); stroke-width: 0.5; stroke-dasharray: 2 3; }
.axis-text { font-family: var(--mono); font-size: 10px; fill: var(--ink-mute); }

.pull-quote {
  margin: 50px 0 0;
  max-width: 760px;
  padding: 28px 32px;
  background: var(--bg-card);
  border-left: 3px solid var(--accent);
  border-radius: 0 4px 4px 0;
  font-family: var(--serif);
  font-size: 18px; line-height: 1.55;
  color: var(--ink);
  font-style: italic;
}
.pull-quote em { color: var(--accent); font-style: italic; }
.pull-quote cite {
  display: block;
  margin-top: 14px;
  font-family: var(--mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-mute); font-style: normal;
}

/* ========================================================================
   Time Act
   ======================================================================== */

.time-split {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 36px;
  align-items: start;
}
@media (max-width: 920px) { .time-split { grid-template-columns: 1fr; } }

.time-focus {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 24px;
  position: sticky; top: 120px;
}
.time-focus .timeline-mini { width: 100%; height: auto; }

.time-narrate {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}
.time-narrate-label {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 4px;
}
.time-narrate-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 18px; letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.time-narrate-body {
  font-family: var(--serif); font-size: 15px; line-height: 1.55;
  color: var(--ink-soft); margin: 0; text-wrap: pretty;
}

.time-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.tl-family-label {
  grid-column: 1 / -1;
  font-family: var(--mono); font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-mute);
  padding: 6px 0 2px;
  border-top: 1px solid var(--rule);
  margin-top: 4px;
}
.tl-family-label:first-child { border-top: none; margin-top: 0; }
.tl-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 14px;
  text-align: left;
  cursor: pointer;
  transition: 150ms;
  font-family: inherit;
  display: flex; flex-direction: column; gap: 6px;
}
.tl-card:hover { border-color: var(--ink-soft); transform: translateY(-1px); }
.tl-card.is-active {
  background: #faf6ec;
}
.tl-card.is-active.pos {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 1px var(--accent-2) inset;
}
.tl-card.is-active.neg {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset;
}
.tl-card-label {
  font-family: var(--serif); font-weight: 600; font-size: 14px;
  letter-spacing: -0.005em;
}
.tl-card-delta { font-family: var(--mono); font-size: 12px; font-weight: 500; }
.tl-card-delta.pos { color: var(--accent-2); }
.tl-card-delta.neg { color: #b8543a; }
.sparkline { width: 100%; height: 32px; }

.timeline-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
@media (max-width: 760px) { .timeline-grid { grid-template-columns: repeat(2, 1fr); } }
.timeline-card {
  background: var(--bg-card); border: 1px solid var(--rule); border-radius: 4px;
  padding: 0; text-align: left; cursor: pointer; transition: 150ms; font-family: inherit;
}
.timeline-card:hover { border-color: var(--ink-soft); transform: translateY(-1px); }
.timeline-card.is-active { border-color: var(--ink); box-shadow: 0 0 0 1px var(--ink); }
.ex-temporal-detail { margin-top: 24px; padding: 24px; background: var(--bg-card); border: 1px solid var(--rule); border-radius: 4px; }
.ex-temporal-narrative { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--rule); font-family: var(--serif); font-size: 15px; line-height: 1.6; color: var(--ink-soft); }
.ex-temporal-narrative-label { font-family: var(--mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--ink-mute); margin-bottom: 6px; }

.timeline-mini { width: 100%; }
.tl-title { font-family: var(--serif); font-size: 14px; font-weight: 600; fill: var(--ink); }
.tl-delta { font-family: var(--mono); font-size: 11px; font-weight: 500; }
.tl-delta.pos { fill: var(--accent-2); }
.tl-delta.neg { fill: #b8543a; }
.tl-sub { font-family: var(--mono); font-size: 10px; fill: var(--ink-mute); letter-spacing: 0.04em; text-transform: uppercase; }
.tl-axis { font-family: var(--mono); font-size: 9px; fill: var(--ink-mute); }
.tl-baseline { stroke: var(--rule); stroke-width: 0.5; }
.tl-pt { font-family: var(--mono); font-size: 9px; fill: var(--ink-soft); }

/* Temporal highlights — 3 sparkline panels */
.time-highlights-label {
  font-family: var(--mono); font-size: 11px; color: var(--ink-mute);
  text-transform: uppercase; letter-spacing: 0.07em;
  margin-bottom: 12px;
}
.time-highlights {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-bottom: 40px;
}
@media (max-width: 640px) { .time-highlights { grid-template-columns: 1fr; } }
.time-hl-card {
  background: var(--bg-card); border: 1px solid var(--rule);
  border-radius: 4px; padding: 18px 16px;
  display: flex; flex-direction: column; gap: 4px;
}
.time-hl-delta {
  font-family: var(--serif); font-size: 28px; font-weight: 700;
  letter-spacing: -0.02em; line-height: 1;
}
.time-hl-delta.pos { color: var(--accent-2); }
.time-hl-delta.neg { color: #b8543a; }
.time-hl-label {
  font-family: var(--serif); font-size: 13px; color: var(--ink-soft);
  margin-bottom: 8px;
}

/* obs-hint */
.obs-hint { font-family: var(--mono); font-size: 11px; color: var(--ink-mute); margin: 8px 0 12px 32px; letter-spacing: 0.03em; }

/* Explorer link below each act */
.act-explorer-link {
  margin-top: 16px;
}
.btn-sm {
  font-size: 13px; padding: 6px 14px;
}

/* Model variants */
.mv-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 720px) { .mv-layout { grid-template-columns: 1fr; } }
.mv-col-tabs {
  display: flex; flex-direction: column; gap: 4px;
}
.mv-tab {
  text-align: left;
  border-bottom: none !important;
  border-left: 2px solid transparent;
  margin-bottom: 0 !important;
  padding: 8px 12px;
  border-radius: 3px;
}
.mv-tab.is-active {
  border-left-color: var(--accent);
  background: var(--bg-card);
}
.mv-sub {
  font-family: var(--serif); font-size: 14px; line-height: 1.5;
  color: var(--ink-soft); margin: 12px 0 0; max-width: 100%;
}
.mv-block {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px;
  max-width: 720px;
  margin: 0 auto;
}
.mv-svg { width: 100%; height: auto; max-width: 640px; display: block; margin: 0 auto; }
.mv-row-label { font-family: var(--mono); font-size: 11px; fill: var(--ink); }
.mv-legend {
  margin-top: 12px; display: flex; flex-wrap: wrap; gap: 8px;
  font-family: var(--mono); font-size: 11px;
}
.mv-legend-btn {
  padding: 4px 10px; border-radius: 3px; border: 1px solid transparent;
  cursor: pointer; background: transparent;
  font-family: var(--mono); font-size: 11px; color: var(--ink-soft);
  display: inline-flex; align-items: center; gap: 4px;
  transition: background 120ms, border-color 120ms, color 120ms;
}
.mv-legend-btn:hover { background: var(--bg-deep); color: var(--ink); }
.mv-legend-btn.is-active { background: var(--bg-deep); border-color: var(--rule-strong); color: var(--ink); font-weight: 600; }

/* Model variants — scroll-driven section */
.mv-scroll-outer { position: relative; height: 320vh; margin-top: 12px; }
.mv-sticky-panel {
  position: sticky; top: 0; height: 100vh;
  display: grid; grid-template-columns: minmax(240px, 280px) 1fr; gap: 0;
}
.mv-steps-area {
  position: relative; display: flex; flex-direction: column;
  justify-content: center; padding: 24px 24px 24px 0;
}
.mv-plot-area { display: flex; align-items: center; padding: 24px 0; overflow-y: auto; }

.mv-step-card {
  padding: 14px 14px 14px 44px; background: var(--bg-card);
  border: 1px solid var(--rule); border-left: 3px solid transparent;
  border-radius: 6px; font-family: var(--serif); font-size: 14px; line-height: 1.5;
  color: var(--ink-soft); opacity: 0.35; margin-bottom: 12px; position: relative;
  transition: opacity 0.4s ease, border-color 0.3s ease, background 0.3s ease;
}
.mv-step-card.is-active {
  opacity: 1; border-left-color: var(--accent-2);
  background: #3c6e7112; color: var(--ink);
}
.mv-step-card strong { color: var(--ink); font-weight: 600; display: block; }
.mv-step-desc {
  display: block; max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.4s ease, margin-top 0.3s ease;
  opacity: 0; margin-top: 0;
}
.mv-step-card.is-active .mv-step-desc {
  max-height: 400px; opacity: 1; margin-top: 4px;
}
.mv-step-num {
  position: absolute; left: 0; top: 14px; width: 36px;
  font-family: var(--mono); font-size: 10px; font-weight: 600; color: var(--accent);
  text-align: right; padding-right: 10px; border-right: 1px solid var(--rule-strong);
  transition: color 0.3s ease;
}
.mv-step-card.is-active .mv-step-num { color: var(--accent-2); }

@media (max-width: 960px) {
  .mv-scroll-outer { height: auto; }
  .mv-sticky-panel { position: static; height: auto; grid-template-columns: 1fr; }
  .mv-steps-area { flex-direction: row; flex-wrap: wrap; gap: 8px; padding: 0 0 16px 0; justify-content: flex-start; }
  .mv-step-card {
    padding: 8px 12px; opacity: 1; flex: 0 0 auto;
    border-left-width: 1px; border-radius: 4px;
  }
  .mv-step-card .mv-step-num { display: none; }
  .mv-step-card strong { display: inline; }
  .mv-step-desc { display: none !important; }
  .mv-plot-area { padding: 0; }
}

/* ========================================================================
   Personas Act
   ======================================================================== */

.personas-layout {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 960px) { .personas-layout { grid-template-columns: 1fr; } }

.personas-left {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px;
  overflow-x: auto;
}

.persona-svg { width: 100%; height: auto; }
.persona-row { transition: 120ms; }
.persona-row:hover rect { opacity: 0.85; }
.persona-name { font-family: var(--serif); font-size: 13px; font-weight: 600; fill: var(--ink); }
.persona-size { font-family: var(--mono); font-size: 10px; fill: var(--ink-mute); }
.persona-col-label { font-family: var(--mono); font-size: 9px; fill: var(--ink); transition: fill 120ms, font-weight 120ms; }
.persona-col-label.is-hover { font-weight: 700; }
.persona-name.is-hover { fill: var(--accent); }
.persona-family-label { font-family: var(--mono); font-size: 9px; letter-spacing: 0.06em; text-transform: uppercase; fill: var(--ink-mute); }
.persona-cell-text { font-family: var(--mono); font-size: 9px; font-weight: 500; pointer-events: none; }

.caption {
  font-family: var(--mono); font-size: 11px; color: var(--ink-mute);
  margin: 10px 0 0; line-height: 1.5;
}

.persona-card {
  background: var(--bg-card);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  padding: 24px;
  position: sticky; top: 120px;
}
.persona-card-rank {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 8px;
}
.persona-card-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 22px; letter-spacing: -0.015em; line-height: 1.15;
  margin: 0 0 16px;
}
.persona-card-size { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.size-bar {
  flex: 1; height: 6px; background: var(--rule); border-radius: 3px; overflow: hidden;
}
.size-fill { height: 100%; background: var(--accent); }
.size-text { font-family: var(--mono); font-size: 11px; color: var(--ink-soft); }
.persona-card-blurb {
  font-family: var(--serif); font-size: 15px; line-height: 1.55;
  color: var(--ink-soft); margin: 0 0 18px; text-wrap: pretty;
}
.persona-prompts-label {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-mute); margin-bottom: 8px;
}
.persona-prompts {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 8px;
}
.persona-prompts li {
  font-family: var(--mono); font-size: 12px;
  background: var(--bg);
  border-left: 2px solid var(--accent);
  padding: 8px 12px;
  line-height: 1.45;
  color: var(--ink-soft);
  border-radius: 0 3px 3px 0;
}
.persona-prompts .mono { color: var(--accent); font-weight: 600; margin-right: 4px; }
.persona-prompts-note {
  font-size: 11px; line-height: 1.5; color: var(--ink-mute);
  margin: 14px 0 0; font-style: italic;
}

.within-user { margin-top: 80px; }
.ridge-wrap { display: flex; flex-direction: column; gap: 18px; }
.ridge-row {
  display: grid; grid-template-columns: 200px 1fr;
  gap: 24px; align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 18px;
}
.ridge-metric { font-family: var(--serif); font-weight: 600; font-size: 16px; }
.ridge-stat { font-family: var(--mono); font-size: 11px; color: var(--ink-mute); margin-top: 4px; }
.ridge-p { color: var(--accent); font-weight: 600; }
.ridge-svg { width: 100%; height: auto; }
.ridge-axis { stroke: var(--ink); stroke-width: 0.5; }
.ridge-which { font-family: var(--mono); font-size: 9px; fill: var(--ink-mute); letter-spacing: 0.04em; text-transform: uppercase; }

/* ========================================================================
   Coda
   ======================================================================== */

.coda {
  max-width: var(--max-w);
  margin: 60px auto 0;
  padding: 80px 32px 60px;
  border-top: 1px solid var(--rule-strong);
}
.coda-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 920px) { .coda-grid { grid-template-columns: 1fr; } }
.coda-title {
  font-family: var(--serif); font-weight: 600;
  font-size: 32px; letter-spacing: -0.02em; line-height: 1.1;
  margin: 0 0 18px; text-wrap: balance;
}
.coda-body {
  font-family: var(--serif); font-size: 17px; line-height: 1.55;
  color: var(--ink-soft); margin: 0 0 24px; text-wrap: pretty;
}
.coda-cite {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 24px;
}
.coda-cite-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-mute); margin-bottom: 12px;
}
.cite-block {
  font-family: var(--mono); font-size: 11px; line-height: 1.6;
  background: var(--bg); padding: 14px 16px; border-radius: 3px;
  margin: 0; overflow-x: auto;
}
.coda-links { display: flex; flex-direction: column; gap: 6px; margin-top: 18px; }
.coda-links a {
  font-family: var(--mono); font-size: 12px; color: var(--accent);
  text-decoration: none;
}
.coda-links a:hover { text-decoration: underline; }

.coda-foot {
  margin-top: 60px; padding-top: 24px;
  border-top: 1px solid var(--rule);
  display: flex; justify-content: center;
  font-size: 11px; color: var(--ink-mute);
}

/* ========================================================================
   Explorer
   ======================================================================== */

.explorer {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: calc(100vh - 60px);
}
@media (max-width: 920px) { .explorer { grid-template-columns: 1fr; } }

.explorer-side {
  border-right: 1px solid var(--rule);
  padding: 32px 24px;
  position: sticky; top: 60px; height: calc(100vh - 60px);
  overflow-y: auto;
}
.ex-side-head { margin-bottom: 26px; }
.ex-side-eyebrow {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent);
}
.ex-side-title {
  font-family: var(--serif); font-weight: 600;
  font-size: 22px; letter-spacing: -0.015em;
  margin-top: 4px;
}

.ex-nav { display: flex; flex-direction: column; gap: 2px; }
.ex-nav-btn {
  text-align: left;
  background: transparent; border: 1px solid transparent;
  cursor: pointer;
  padding: 10px 12px;
  border-radius: 4px;
  font-family: inherit;
  transition: 120ms;
}
.ex-nav-btn:hover { background: var(--bg-card); }
.ex-nav-btn.is-active {
  background: var(--bg-card);
  border-color: var(--rule-strong);
  border-left: 3px solid var(--accent);
}
.ex-nav-name {
  font-family: var(--serif); font-weight: 600; font-size: 15px;
  letter-spacing: -0.005em; color: var(--ink);
}
.ex-nav-sub { font-size: 11px; color: var(--ink-mute); margin-top: 2px; line-height: 1.35; }

.ex-side-foot {
  margin-top: 32px; padding-top: 20px;
  border-top: 1px solid var(--rule);
}
.ex-foot-row {
  display: flex; justify-content: space-between;
  padding: 4px 0;
  font-size: 12px; color: var(--ink-soft);
}

.explorer-main { padding: 40px 48px; min-width: 0; }
@media (max-width: 920px) { .explorer-main { padding: 28px 20px; } }

.ex-page-head { margin-bottom: 28px; max-width: 720px; }
.ex-h2 {
  font-family: var(--serif); font-weight: 600;
  font-size: 32px; letter-spacing: -0.02em; line-height: 1.1;
  margin: 0 0 10px;
}
.ex-deck {
  font-family: var(--serif); font-size: 16px; line-height: 1.5;
  color: var(--ink-soft); margin: 0; text-wrap: pretty;
}

.ex-controls {
  display: flex; flex-direction: column; gap: 18px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px;
  margin-bottom: 24px;
}
.ex-control-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-mute); margin-bottom: 8px;
}
.ex-control-inline {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px; align-items: end;
}
.ex-control-grow { flex: 1; }
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--rule-strong);
  background: transparent;
  font-family: var(--sans); font-size: 12px; font-weight: 500;
  color: var(--ink-soft); cursor: pointer;
  transition: 120ms;
  display: inline-flex; align-items: center; gap: 6px;
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.is-on {
  background: var(--ink); color: var(--bg);
  border-color: var(--ink);
}
.chip-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.chip-src.is-on { background: var(--chip-color); border-color: var(--chip-color); }
.chip-src.is-on .chip-dot { background: var(--bg) !important; }
.chip-fam.is-on { background: var(--chip-fam); border-color: var(--chip-fam); color: #fff; }

.input, .select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--rule-strong);
  background: var(--bg);
  border-radius: 4px;
  font-family: var(--sans); font-size: 13px;
  color: var(--ink);
}
.input:focus, .select:focus { outline: none; border-color: var(--accent); }

.ex-empty {
  padding: 60px; text-align: center;
  font-family: var(--serif); font-size: 16px; color: var(--ink-mute);
}

/* Drill */
.drill-split {
  display: grid; grid-template-columns: 280px 1fr;
  gap: 24px; align-items: start;
}
@media (max-width: 920px) { .drill-split { grid-template-columns: 1fr; } }

.drill-left {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 14px;
  max-height: 640px;
  display: flex; flex-direction: column; gap: 10px;
}
.drill-list {
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 2px;
  flex: 1;
}
.drill-item {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 8px; align-items: center;
  padding: 7px 8px;
  text-align: left;
  background: transparent; border: 1px solid transparent;
  border-radius: 3px;
  font-family: inherit;
  cursor: pointer; transition: 120ms;
}
.drill-item:hover { background: var(--bg); }
.drill-item.is-active {
  background: var(--bg);
  border-color: var(--accent);
}
.drill-item-fam { font-size: 9px; color: var(--ink-mute); text-transform: uppercase; letter-spacing: 0.04em; }
.drill-item-label { font-size: 12px; color: var(--ink); font-weight: 500; }
.drill-item-spread { font-family: var(--mono); font-size: 10px; color: var(--ink-mute); }

.drill-right {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 28px;
}
.drill-head-family {
  font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent);
}
.drill-head-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 26px; letter-spacing: -0.02em;
  margin: 4px 0 10px;
}
.drill-head-def {
  font-family: var(--serif); font-size: 15px; line-height: 1.5;
  color: var(--ink-soft); margin: 0 0 20px;
}
.drill-head-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin-bottom: 24px;
}
.drill-bars { display: flex; flex-direction: column; gap: 10px; }
.drill-bar-row {
  display: grid;
  grid-template-columns: 140px 1fr 60px;
  gap: 14px; align-items: center;
}
.drill-bar-track {
  height: 22px; background: var(--bg); border-radius: 2px; overflow: hidden;
}
.drill-bar-fill { height: 100%; transition: width 250ms ease; }
.drill-bar-val { font-size: 13px; font-weight: 500; text-align: right; }

/* Taxonomy */
.tax-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
  margin-bottom: 48px;
}
.tax-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 18px;
}
.tax-card-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.tax-family { font-family: var(--serif); font-weight: 600; font-size: 16px; letter-spacing: -0.01em; }
.tax-level { font-size: 10px; color: var(--ink-mute); letter-spacing: 0.04em; }
.tax-count { display: flex; align-items: baseline; gap: 6px; margin-bottom: 8px; }
.tax-count-num {
  font-family: var(--serif); font-weight: 600;
  font-size: 30px; letter-spacing: -0.02em;
  color: var(--accent);
}
.tax-count-word { font-family: var(--mono); font-size: 11px; color: var(--ink-mute); }
.tax-desc { font-size: 13px; line-height: 1.5; color: var(--ink-soft); margin: 0 0 8px; }
.tax-ex { font-family: var(--mono); font-size: 11px; color: var(--ink-mute); line-height: 1.5; }

.tax-levels { margin-top: 32px; }
.levels-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 16px;
}
@media (max-width: 920px) { .levels-row { grid-template-columns: 1fr 1fr; } }
.level-card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  padding: 18px;
}
.level-name {
  font-family: var(--serif); font-weight: 600; font-size: 17px;
  letter-spacing: -0.01em; margin-bottom: 4px;
}
.level-desc { font-size: 13px; color: var(--ink-soft); margin-bottom: 10px; line-height: 1.5; }
.level-fams { font-size: 10px; color: var(--ink-mute); line-height: 1.6; }

/* Persona inspector */
.persona-picker {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 8px;
  margin-bottom: 28px;
}
.persona-pick {
  background: var(--bg-card);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  padding: 14px;
  cursor: pointer; text-align: left;
  font-family: inherit;
  transition: 120ms;
}
.persona-pick:hover { border-color: var(--ink); }
.persona-pick.is-active {
  background: var(--ink); border-color: var(--ink);
}
.persona-pick.is-active .pp-name { color: var(--bg); }
.persona-pick.is-active .pp-size { color: var(--bg); opacity: 0.6; }
.pp-name { font-family: var(--serif); font-weight: 600; font-size: 14px; color: var(--ink); }
.pp-size { font-size: 12px; color: var(--ink-mute); margin-top: 4px; }

.persona-detail {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}
@media (max-width: 920px) { .persona-detail { grid-template-columns: 1fr; } }
.persona-detail-l {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 28px;
}
.persona-detail-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 24px; letter-spacing: -0.015em;
  margin: 0 0 12px;
}
.persona-detail-blurb {
  font-family: var(--serif); font-size: 15px; line-height: 1.55;
  color: var(--ink-soft); margin: 0 0 22px;
}

.persona-signature {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 16px 20px;
  margin-bottom: 12px;
}
.sig-h {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-mute); margin: 0 0 12px;
}
.sig-row {
  display: grid;
  grid-template-columns: 80px 1fr 50px;
  gap: 10px; align-items: center;
  padding: 6px 0;
  border-bottom: 1px dashed var(--rule);
}
.sig-row:last-child { border: none; }
.sig-fam { font-size: 10px; color: var(--ink-mute); text-transform: uppercase; letter-spacing: 0.04em; }
.sig-name { font-size: 13px; color: var(--ink); }
.sig-val { font-size: 13px; font-weight: 500; text-align: right; }
.sig-row-pos .sig-val { color: var(--accent-2); }
.sig-row-neg .sig-val { color: var(--accent); }

.persona-full { margin-top: 32px; overflow-x: auto; }

/* Source table */
.src-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
  font-size: 13px;
  margin-bottom: 32px;
}
.src-table th, .src-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
}
.src-table th {
  font-family: var(--mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-mute); font-weight: 500;
  background: var(--bg);
}
.src-table tr:last-child td { border-bottom: none; }

.src-cards-2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.src-card-deep {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--src-color);
  border-radius: 4px;
  padding: 18px;
}
.src-deep-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.src-deep-name { font-family: var(--serif); font-weight: 600; font-size: 17px; }
.src-deep-note { font-family: var(--serif); font-size: 14px; line-height: 1.5; color: var(--ink-soft); margin: 0; }

/* ========================================================================
   Annotation Atlas — taxonomy explorer
   Layout: head → schema map (3 level columns) → search → body
   ======================================================================== */

.atlas {
  display: flex; flex-direction: column;
  gap: 24px;
}

.atlas-head { max-width: 760px; }
.atlas-eyebrow {
  font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 10px;
}
.atlas-title {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(28px, 3.4vw, 38px);
  letter-spacing: -0.02em; line-height: 1.05;
  margin: 0 0 12px; text-wrap: balance;
}
.atlas-deck {
  font-family: var(--serif); font-size: 16px; line-height: 1.55;
  color: var(--ink-soft); margin: 0; text-wrap: pretty;
}
.atlas-deck em { color: var(--ink); font-style: italic; font-weight: 500; }

/* ── Schema map ─────────────────────────────────────────────────────── */
.atlas-map {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
}

.atlas-col {
  padding: 22px 22px 18px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex; flex-direction: column;
  min-width: 0;
}
.atlas-col:last-child { border-right: none; border-bottom: none; }
@media (min-width: 920px) {
  .atlas-col { border-bottom: none; }
}

.atlas-col-head { margin-bottom: 14px; }
.atlas-col-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 19px; letter-spacing: -0.01em;
  color: var(--ink);
}
.atlas-col-tag {
  font-family: var(--serif); font-style: italic;
  font-size: 13px; color: var(--ink-soft);
  margin-top: 2px;
}
.atlas-col-count {
  font-size: 10px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-mute);
  margin-top: 8px;
}

.atlas-fam-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 4px;
}
.atlas-fam {
  width: 100%;
  display: grid;
  grid-template-columns: 4px 1fr auto;
  gap: 12px; align-items: center;
  padding: 10px 10px 10px 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  transition: 120ms;
}
.atlas-fam:hover {
  background: var(--bg);
  border-color: var(--rule-strong);
}
.atlas-fam.is-active {
  background: var(--bg);
  border-color: var(--rule-strong);
  box-shadow: inset 0 0 0 1px var(--rule-strong);
}
.atlas-fam-accent {
  width: 4px; height: 28px;
  border-radius: 0 2px 2px 0;
  align-self: stretch;
}
.atlas-fam-body {
  display: flex; flex-direction: column; gap: 1px;
  min-width: 0;
}
.atlas-fam-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 15px; letter-spacing: -0.005em;
  color: var(--ink);
}
.atlas-fam.is-active .atlas-fam-name { color: var(--ink); }
.atlas-fam-tag {
  font-size: 12px; color: var(--ink-mute);
  line-height: 1.35;
}
.atlas-fam-count {
  font-size: 12px; color: var(--ink-soft);
  font-weight: 500;
  white-space: nowrap;
  padding-right: 4px;
}
.atlas-fam-tier {
  font-size: 9px; color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.atlas-fam.is-active .atlas-fam-count { color: var(--accent); }

/* ── Search row ─────────────────────────────────────────────────────── */
.atlas-search-row {
  display: flex; align-items: center; gap: 16px;
  flex-wrap: wrap;
}
.atlas-search-wrap {
  flex: 1; min-width: 280px;
  display: flex; align-items: center; gap: 10px;
  padding: 0 16px;
  background: var(--bg-card);
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  transition: 120ms;
}
.atlas-search-wrap:focus-within {
  border-color: var(--accent);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px #b8543a1a;
}
.atlas-search-glyph {
  font-size: 16px; color: var(--ink-mute);
}
.atlas-search {
  flex: 1;
  background: transparent;
  border: none; outline: none;
  font-family: var(--sans); font-size: 14px;
  color: var(--ink);
  padding: 12px 0;
}
.atlas-search::placeholder { color: var(--ink-mute); }
.atlas-search-clear {
  background: transparent; border: none; cursor: pointer;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink-mute);
  padding: 4px 6px;
}
.atlas-search-clear:hover { color: var(--accent); }

.atlas-search-controls {
  display: flex; align-items: center; gap: 14px;
}
.atlas-search-meta {
  font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-mute);
  white-space: nowrap;
}

/* ── Body ────────────────────────────────────────────────────────── */
.atlas-body { min-height: 320px; }

.atlas-fam-detail {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--fam-accent, var(--accent));
  border-radius: 4px;
  padding: 28px 28px 24px;
}
.atlas-fam-detail-head { margin-bottom: 24px; }
.atlas-fam-detail-meta {
  font-size: 10px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-mute);
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 12px;
}
.atlas-pill {
  display: inline-block;
  background: var(--fam-accent, var(--accent));
  color: var(--bg);
  padding: 3px 8px;
  border-radius: 3px;
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.atlas-meta-sep { color: var(--rule-strong); }
.atlas-fam-detail-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 28px; letter-spacing: -0.02em;
  margin: 0 0 8px;
  line-height: 1.1;
}
.atlas-fam-detail-tag {
  font-family: var(--serif); font-style: italic;
  font-size: 16px; line-height: 1.5;
  color: var(--ink-soft); margin: 0; max-width: 640px;
}

/* Definitions toggle */
.atlas-defs-toggle {
  background: transparent;
  border: 1px solid var(--rule-strong);
  color: var(--ink-soft);
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.04em;
  transition: 120ms;
  display: inline-flex; align-items: center; gap: 6px;
}
.atlas-defs-toggle:hover {
  border-color: var(--ink);
  color: var(--ink);
}
.atlas-defs-toggle.is-on {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}

/* Two-tier hierarchy tree */
.atlas-tree {
  display: flex; flex-direction: column;
  gap: 14px;
}

.atlas-tree-legend {
  display: flex; align-items: center; gap: 12px;
  font-size: 10px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ink-mute);
  padding: 0 2px 6px;
}
.atlas-tree-legend-left {
  flex: 0 0 168px;
  text-align: left;
}
.atlas-tree-legend-bracket {
  color: var(--fam-accent, var(--accent));
  font-size: 13px;
}
.atlas-tree-legend-right { flex: 1; }
@media (max-width: 720px) { .atlas-tree-legend { display: none; } }

.atlas-tree-rows {
  display: flex; flex-direction: column;
  gap: 10px;
}

.atlas-tree-group {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
}
@media (max-width: 720px) {
  .atlas-tree-group { grid-template-columns: 1fr; }
}

.atlas-tree-parent {
  background: color-mix(in oklab, var(--bg) 92%, var(--ink) 8%);
  padding: 18px 18px 16px;
  border-right: 1px solid var(--rule);
  border-left: 3px solid var(--fam-accent, var(--accent));
  display: flex; flex-direction: column;
  gap: 6px;
  position: relative;
}
@media (max-width: 720px) {
  .atlas-tree-parent { border-right: none; border-bottom: 1px solid var(--rule); }
}

.atlas-tree-rank {
  font-size: 10px; color: var(--fam-accent, var(--accent));
  font-weight: 600; letter-spacing: 0.06em;
}
.atlas-tree-parent-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 17px; letter-spacing: -0.015em;
  line-height: 1.2;
  color: var(--ink);
}
.atlas-tree-parent-tag {
  font-family: var(--serif); font-style: italic;
  font-size: 13px; line-height: 1.45;
  color: var(--ink-soft);
}
.atlas-tree-parent-count {
  margin-top: auto;
  padding-top: 8px;
  font-size: 10px; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--ink-mute);
}

.atlas-tree-children {
  position: relative;
  padding: 10px 18px 12px;
}
.atlas-tree-rail {
  position: absolute;
  left: 18px;
  top: 22px;
  bottom: 22px;
  width: 1px;
  background: var(--fam-accent, var(--accent));
  opacity: 0.4;
}
.atlas-tree-list {
  list-style: none; padding: 0 0 0 22px;
  margin: 0;
  display: flex; flex-direction: column;
}
.atlas-tree-leaf {
  position: relative;
  padding: 10px 0;
  border-top: 1px dashed var(--rule);
}
.atlas-tree-leaf:first-child { border-top: none; padding-top: 8px; }
.atlas-tree-leaf:last-child { padding-bottom: 6px; }

.atlas-tree-tick {
  position: absolute;
  left: -22px;
  top: 22px;
  width: 16px;
  height: 1px;
  background: var(--fam-accent, var(--accent));
  opacity: 0.5;
}
.atlas-tree-leaf:first-child .atlas-tree-tick { top: 20px; }

.atlas-tree-leaf-body { min-width: 0; }
.atlas-tree-leaf-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 15px; letter-spacing: -0.005em;
  color: var(--ink);
  line-height: 1.35;
}
.atlas-tree-leaf-tail {
  font-weight: 500;
  color: var(--ink-soft);
  font-style: italic;
}
.atlas-tree-leaf-def {
  font-family: var(--serif);
  font-size: 13.5px; line-height: 1.5;
  color: var(--ink-soft);
  margin: 4px 0 0;
  text-wrap: pretty;
}

/* Label list */
.atlas-label-list {
  list-style: none; padding: 0 0 14px;
  margin: 0;
  display: flex; flex-direction: column;
  gap: 2px;
}
.atlas-label-list-flat {
  padding-top: 4px;
}

.atlas-label {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px dashed var(--rule);
}
.atlas-label:first-child { border-top: none; }

.atlas-label-rank {
  font-size: 10px; color: var(--ink-mute);
  letter-spacing: 0.04em;
  padding-top: 4px;
}
.atlas-label-body { min-width: 0; }
.atlas-label-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 15px; letter-spacing: -0.005em;
  color: var(--ink);
  line-height: 1.35;
}
.atlas-label-name-tail {
  font-weight: 500;
  color: var(--ink-soft);
  font-style: italic;
}
.atlas-label-crumb {
  font-size: 10px; color: var(--ink-mute);
  letter-spacing: 0.04em;
  margin-top: 4px;
}
.atlas-crumb-sep { color: var(--accent); margin: 0 4px; }
.atlas-label-def {
  font-family: var(--serif);
  font-size: 14px; line-height: 1.5;
  color: var(--ink-soft);
  margin: 5px 0 0;
  text-wrap: pretty;
}

.atlas-mark {
  background: #b8543a26;
  color: var(--ink);
  padding: 0 1px;
  border-radius: 2px;
}

/* Search results */
.atlas-results {
  display: flex; flex-direction: column; gap: 16px;
}
.atlas-result-fam {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--fam-accent, var(--accent));
  border-radius: 4px;
  padding: 18px 22px 6px;
}
.atlas-result-fam-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  margin-bottom: 4px;
}
.atlas-result-fam-name {
  font-family: var(--serif); font-weight: 600;
  font-size: 17px; margin-left: 12px;
  letter-spacing: -0.01em;
}
.atlas-result-open {
  background: transparent;
  border: none; cursor: pointer;
  font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 6px 0;
}
.atlas-result-open:hover { color: var(--ink); }

.atlas-empty {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 60px 32px;
  text-align: center;
}
.atlas-empty-glyph {
  font-size: 32px; color: var(--ink-mute);
  margin-bottom: 12px;
}
.atlas-empty-msg {
  font-family: var(--serif); font-size: 16px;
  color: var(--ink-soft);
}
.atlas-empty-msg em {
  color: var(--accent); font-style: italic;
}

/* Conversation footnote */
.atlas-foot {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 20px 0 8px;
  border-top: 1px dashed var(--rule-strong);
}
@media (max-width: 720px) { .atlas-foot { grid-template-columns: 1fr; gap: 12px; } }
.atlas-foot-mark {
  font-size: 11px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--accent);
  padding-top: 2px;
}
.atlas-foot-body {
  font-family: var(--serif);
  font-size: 14px; line-height: 1.55;
  color: var(--ink-soft);
}
.atlas-foot-body em {
  color: var(--ink); font-style: italic;
}
.atlas-foot-dims {
  display: flex; flex-wrap: wrap;
  gap: 6px; margin-top: 10px;
}
.atlas-foot-dim {
  font-family: var(--mono); font-size: 11px;
  padding: 4px 9px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--ink-soft);
  cursor: help;
}

/* ========================================================================
   Misc
   ======================================================================== */

::selection { background: var(--accent); color: var(--bg); }

/* scrollbars */
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--rule-strong); border-radius: 4px; }
*::-webkit-scrollbar-thumb:hover { background: var(--ink-mute); }