:root {
  --bg: #f2f4f0;
  --bg-deep: #e8ece7;
  --ink: #1a2332;
  --muted: #5c6b7a;
  --accent: #0d6e6e;
  --accent-soft: rgba(13, 110, 110, 0.12);
  --finding: #b45309;
  --claim: #3d5a40;
  --question: #4a5d73;
  --line: rgba(26, 35, 50, 0.12);
  --paper: #fbfcf9;
  --shadow: 0 1px 0 rgba(26, 35, 50, 0.04);
  --display: "Fraunces", "Source Serif 4", Georgia, serif;
  --body: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --measure: 38rem;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--ink); }
body {
  font-family: var(--body);
  font-size: 1.05rem;
  line-height: 1.55;
  background:
    linear-gradient(135deg, rgba(13, 110, 110, 0.07) 0%, transparent 42%),
    linear-gradient(340deg, rgba(180, 83, 9, 0.05) 0%, transparent 36%),
    radial-gradient(ellipse 900px 480px at 100% 0%, rgba(74, 93, 115, 0.08), transparent 55%),
    var(--bg);
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #095858; }

.top {
  display: flex;
  gap: 1.25rem;
  align-items: baseline;
  flex-wrap: wrap;
  padding: 1rem clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
  background: rgba(251, 252, 249, 0.78);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.top a { color: var(--muted); text-decoration: none; transition: color 160ms ease; }
.top a:hover, .top a[aria-current="page"] { color: var(--ink); }
.brand {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--ink) !important;
  margin-right: 0.5rem;
}

.map-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  min-height: calc(100vh - 3.2rem);
}
@media (min-width: 960px) {
  .map-shell {
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 22rem);
  }
}

.map-hero {
  padding: clamp(1.25rem, 3vw, 2rem) clamp(1rem, 3vw, 2rem) 0.75rem;
  animation: rise 520ms ease both;
}
.map-hero .brand-display {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 0.55rem;
  max-width: 14ch;
}
.map-hero .lede {
  color: var(--muted);
  max-width: 34rem;
  margin: 0 0 1rem;
  font-size: 1.05rem;
  line-height: 1.45;
}
.graph-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  align-items: center;
  margin-bottom: 0.85rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
}
.filter-row, .mode-row { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.filter-row button, .mode-row button {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  transition: background 160ms ease, opacity 160ms ease, border-color 160ms ease;
}
.filter-row button[aria-pressed="true"], .mode-row button[aria-pressed="true"] { border-color: currentColor; }
.filter-row button.is-off, .mode-row button.is-off { opacity: 0.35; }
.filter-row button[data-filter="paper"] { color: var(--accent); }
.filter-row button[data-filter="claim"] { color: var(--claim); }
.filter-row button[data-filter="finding"] { color: var(--finding); }
.filter-row button[data-filter="question"] { color: var(--question); }
.mode-row button[aria-pressed="true"] { color: var(--accent); }

.stage {
  position: relative;
  margin: 0 clamp(1rem, 3vw, 2rem) 1.25rem;
  border: 1px solid var(--line);
  background: var(--bg-deep);
  min-height: 52vh;
  box-shadow: var(--shadow);
  animation: rise 640ms ease both;
}
canvas.graph {
  display: block;
  width: 100%;
  height: min(62vh, 640px);
  cursor: default;
}
.empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 2rem;
  text-align: center;
  pointer-events: none;
}
.empty[hidden] {
  display: none !important;
}
.empty[data-empty-story]:not([hidden]) {
  pointer-events: auto;
  gap: 0.75rem;
}
.empty[data-empty-story] button {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
}

.inspector {
  border-top: 1px solid var(--line);
  background: var(--paper);
  padding: 1.25rem clamp(1rem, 3vw, 1.5rem) 2rem;
  animation: rise 700ms ease both;
}
@media (min-width: 960px) {
  .inspector {
    border-top: none;
    border-left: 1px solid var(--line);
    min-height: calc(100vh - 3.2rem);
    position: sticky;
    top: 3.2rem;
    max-height: calc(100vh - 3.2rem);
    overflow: auto;
  }
}
.inspector-kicker {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.4rem;
}
.inspector-title {
  font-family: var(--display);
  font-size: 1.35rem;
  line-height: 1.25;
  font-weight: 600;
  margin: 0 0 0.75rem;
  letter-spacing: -0.01em;
}
.inspector-meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
  letter-spacing: 0.02em;
}
.inspector-body {
  margin: 0 0 0.85rem;
  color: var(--ink);
  line-height: 1.55;
  font-size: 0.98rem;
}
.inspector-note {
  margin: 0 0 0.75rem;
  padding-left: 0.85rem;
  border-left: 2px solid var(--accent-soft);
  color: var(--muted);
  font-size: 0.95rem;
}
.inspector-empty {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
  max-width: 28ch;
}
.inspector-evidence {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}
.inspector-evidence-kicker {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.65rem;
}
.inspector-evidence ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.inspector-evidence li strong {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.3;
  display: block;
  margin-bottom: 0.25rem;
}
.inspector-evidence .inspector-body {
  font-size: 0.92rem;
  margin-bottom: 0.35rem;
}

.page {
  padding: clamp(1.5rem, 4vw, 2.75rem) clamp(1rem, 3vw, 2rem) 3.5rem;
  max-width: 52rem;
  margin: 0 auto;
  animation: rise 480ms ease both;
}
.page h1 {
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 0.5rem;
}
.lede {
  color: var(--muted);
  max-width: var(--measure);
  margin: 0 0 1.75rem;
  font-size: 1.05rem;
  line-height: 1.45;
}

.findings-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.finding-item {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  animation: rise 560ms ease both;
}
.finding-item:last-child { border-bottom: 1px solid var(--line); }
.finding-kicker {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--finding);
  margin: 0 0 0.45rem;
}
.finding-headline {
  font-family: var(--display);
  font-size: clamp(1.25rem, 2.6vw, 1.55rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin: 0 0 0.65rem;
  max-width: var(--measure);
  color: var(--ink);
}
.finding-text {
  font-family: var(--body);
  font-size: clamp(1.05rem, 2.2vw, 1.15rem);
  line-height: 1.55;
  margin: 0 0 0.75rem;
  max-width: var(--measure);
  color: var(--ink);
}
.finding-note {
  margin: 0 0 0.5rem;
  max-width: var(--measure);
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}
.finding-meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.empty-state {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  max-width: var(--measure);
}

.stone-list, .note-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.stone-list li, .note-list li {
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
  align-items: baseline;
}
.stone-list li:last-child, .note-list li:last-child { border-bottom: 1px solid var(--line); }
.stone-list a { font-size: 1.05rem; color: var(--ink); text-decoration: none; border-bottom: 1px solid transparent; }
.stone-list a:hover { border-bottom-color: var(--accent); color: var(--accent); }
.muted { color: var(--muted); }

.prose { max-width: var(--measure); line-height: 1.6; }
.prose h1 {
  font-family: var(--display);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}
.prose h2 {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 1.75rem 0 0.55rem;
  color: var(--accent);
}
.prose p { margin: 0 0 0.95rem; }
.prose ul { padding-left: 1.15rem; margin: 0 0 1rem; }
.prose li { margin: 0.35rem 0; }
.prose strong { font-weight: 600; }
.prose code { font-family: var(--mono); font-size: 0.88em; }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}