:root {
  --bg: #090b10;
  --bg-glow: #121726;
  --panel: rgba(16, 19, 27, 0.82);
  --panel-solid: #11141c;
  --text: #ebe6da;
  --muted: #9b9686;
  --faint: #6b6a63;
  --line: rgba(235, 230, 218, 0.1);
  --accent: #e0b45c;
  --red-letter: #ff7d6e;
  --link-edge: rgba(200, 205, 225, 0.05);
  --link-dim: rgba(200, 205, 225, 0.018);
  --link-hi: rgba(224, 180, 92, 0.55);
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);

  --c-books: #e0b45c;
  --c-people: #6fa8ff;
  --c-places: #5fc79a;
  --c-events: #f08a6c;
  --c-themes: #b48cf2;
  --c-quotes: #ff5f6d;
  --c-source: #8e97a8;
  --c-timelines: #4fd1d9;
  --c-home: #ffffff;

  --serif: "Source Serif 4", Georgia, serif;
  --display: "Cormorant Garamond", Georgia, serif;
  --ui: Inter, system-ui, -apple-system, sans-serif;
  --reader-w: min(600px, 46vw);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f4f0e6;
  --bg-glow: #fbf8f1;
  --panel: rgba(255, 253, 248, 0.88);
  --panel-solid: #fffdf8;
  --text: #24211b;
  --muted: #6c665a;
  --faint: #9a9485;
  --line: rgba(36, 33, 27, 0.12);
  --accent: #9a6b12;
  --red-letter: #b3261e;
  --link-edge: rgba(60, 55, 40, 0.07);
  --link-dim: rgba(60, 55, 40, 0.025);
  --link-hi: rgba(154, 107, 18, 0.6);
  --shadow: 0 10px 34px rgba(60, 50, 30, 0.16);

  --c-books: #b8860b;
  --c-people: #2f6fd6;
  --c-places: #1f9468;
  --c-events: #d4572f;
  --c-themes: #7f4fd1;
  --c-quotes: #d1263a;
  --c-source: #6b7385;
  --c-timelines: #128a93;
  --c-home: #24211b;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; }
body {
  background: radial-gradient(ellipse at 50% 40%, var(--bg-glow), var(--bg) 70%) var(--bg);
  color: var(--text);
  font: 15px/1.5 var(--ui);
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; color: inherit; }
svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

#graph { position: fixed; inset: 0; }
#graph canvas { display: block; }

/* ---------- HUD ---------- */
.hud {
  position: fixed;
  z-index: 5;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: var(--shadow);
}
.hud-top {
  top: 16px; left: 16px;
  width: min(380px, calc(100vw - 32px));
  padding: 14px 14px 12px;
}
.brand-title {
  font: 600 26px/1 var(--display);
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.01em;
}
.brand-title span { color: var(--accent); font-style: italic; font-weight: 500; }
.brand-sub { color: var(--muted); font-size: 12px; margin-top: 6px; letter-spacing: 0.02em; }

.search { position: relative; margin-top: 12px; }
.search > svg { position: absolute; z-index: 1; left: 11px; top: 50%; width: 16px; height: 16px; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.search input {
  width: 100%;
  padding: 9px 36px 9px 34px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  outline: none;
}
.search input:focus { border-color: color-mix(in srgb, var(--accent) 60%, transparent); }
.search input::-webkit-search-cancel-button { display: none; }
.search kbd {
  position: absolute; right: 9px; top: 50%; transform: translateY(-50%);
  font: 500 11px var(--ui); color: var(--faint);
  border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px;
}
#results {
  list-style: none; margin: 8px 0 0; padding: 4px;
  max-height: min(56vh, 460px); overflow-y: auto;
  border-top: 1px solid var(--line);
}
#results li {
  display: flex; align-items: baseline; gap: 10px;
  padding: 7px 9px; border-radius: 8px; cursor: pointer;
}
#results li[aria-selected="true"], #results li:hover { background: color-mix(in srgb, var(--accent) 14%, transparent); }
#results .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; transform: translateY(-1px); }
#results .r-title { font-weight: 500; }
#results .r-sub { color: var(--muted); font-size: 12px; margin-left: auto; white-space: nowrap; }
#results .r-snip { display: block; color: var(--muted); font-size: 12px; line-height: 1.4; margin-top: 2px; }
#results .r-body { min-width: 0; }
#results .empty { color: var(--muted); cursor: default; }
#results .section { color: var(--faint); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; padding: 8px 9px 3px; cursor: default; }
#results .section:hover { background: none; }

.hud-tools {
  top: 16px; right: 16px;
  display: flex; flex-direction: column; gap: 2px; padding: 5px;
  transition: right 0.35s ease;
}
.hud-tools button {
  width: 38px; height: 38px; border: 0; border-radius: 9px;
  background: transparent; cursor: pointer; display: grid; place-items: center;
  color: var(--muted);
}
.hud-tools button svg { width: 19px; height: 19px; }
.hud-tools button:hover { color: var(--text); background: var(--line); }
.hud-tools button[aria-pressed="true"] { color: var(--accent); }
#btn-local[aria-pressed="true"] { background: color-mix(in srgb, var(--accent) 16%, transparent); }

.hud-legend {
  left: 16px; bottom: 16px;
  display: flex; flex-wrap: wrap; gap: 4px; padding: 6px;
  max-width: calc(100vw - 32px);
}
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 10px 5px 8px; border-radius: 999px;
  border: 0; background: transparent; cursor: pointer;
  font-size: 12.5px; color: var(--text); white-space: nowrap;
}
.chip:hover { background: var(--line); }
.chip .dot { width: 9px; height: 9px; border-radius: 50%; box-shadow: 0 0 8px currentColor; }
.chip .n { color: var(--faint); font-size: 11.5px; }
.chip[aria-pressed="false"] { opacity: 0.38; }
.chip[aria-pressed="false"] .dot { box-shadow: none; }

.hint {
  position: fixed; bottom: 22px; right: 22px; z-index: 4;
  color: var(--faint); font-size: 12px; pointer-events: none;
  transition: opacity 0.6s;
}
body.reading .hint { opacity: 0; }
@media (max-width: 1100px) { .hint { display: none; } }

/* ---------- Reader ---------- */
#reader {
  position: fixed; z-index: 6;
  top: 12px; right: 12px; bottom: 12px;
  width: var(--reader-w);
  display: flex; flex-direction: column;
  background: var(--panel);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  transform: translateX(calc(100% + 24px));
  transition: transform 0.35s cubic-bezier(.2,.8,.2,1);
}
#reader[hidden] { display: flex; visibility: hidden; }
body.reading #reader { transform: none; visibility: visible; }
body.reading .hud-tools { right: calc(var(--reader-w) + 24px); }

.reader-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 10px 10px 22px; border-bottom: 1px solid var(--line);
}
.crumbs { flex: 1; min-width: 0; font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.crumbs .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 7px; }
.crumbs b { font-weight: 600; color: var(--text); }
button.icon { width: 34px; height: 34px; border: 0; border-radius: 8px; background: transparent; cursor: pointer; display: grid; place-items: center; color: var(--muted); flex: none; }
button.icon:hover { background: var(--line); color: var(--text); }
button.icon svg { width: 18px; height: 18px; }

.reader-scroll { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding: 8px 30px 40px; scroll-behavior: smooth; }

#article { font: 16.5px/1.68 var(--serif); }
#article h1.title { font: 600 40px/1.08 var(--display); margin: 18px 0 10px; letter-spacing: -0.005em; }
#article .subtitle { font: italic 19px/1.35 var(--display); color: var(--muted); margin: -4px 0 14px; }
#article .meta { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; font-family: var(--ui); }
#article .meta span {
  font-size: 12px; padding: 3px 9px; border-radius: 999px;
  background: var(--line); color: var(--muted);
}
#article .meta span b { color: var(--text); font-weight: 500; }
#article h2 { font: 600 27px/1.2 var(--display); margin: 34px 0 10px; padding-top: 6px; }
#article h3 { font: 600 21px/1.25 var(--display); margin: 26px 0 8px; }
#article h4 { font: 600 15px/1.3 var(--ui); margin: 22px 0 6px; }
#article p { margin: 0 0 14px; }
#article ul, #article ol { padding-left: 22px; margin: 0 0 14px; }
#article li { margin: 3px 0; }
#article hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; }
#article blockquote {
  margin: 16px 0; padding: 4px 0 4px 18px;
  border-left: 2px solid var(--accent);
  color: color-mix(in srgb, var(--text) 85%, var(--muted));
  font-style: italic;
}
#article blockquote p:last-child { margin-bottom: 0; }
#article a { color: var(--accent); text-decoration: none; border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); }
#article a:hover { border-bottom-color: var(--accent); }
#article a.wl[data-g] { color: var(--g); border-bottom-color: color-mix(in srgb, var(--g) 35%, transparent); }
#article a.wl[data-g]:hover { border-bottom-color: var(--g); }
#article .wl-missing { color: var(--muted); }
#article a.vref {
  color: var(--verse, #9fc3ff); font-variant-numeric: lining-nums; white-space: nowrap;
  border-bottom: 1px dashed color-mix(in srgb, var(--verse, #9fc3ff) 55%, transparent);
}
#article a.vref:hover { border-bottom-style: solid; border-bottom-color: currentColor; }
:root[data-theme="light"] #article a.vref { --verse: #2f5fb3; }
#article .hl {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  box-shadow: -10px 0 0 color-mix(in srgb, var(--accent) 14%, transparent), 10px 0 0 color-mix(in srgb, var(--accent) 14%, transparent);
  border-radius: 4px;
  transition: background 0.6s;
}
#btn-back[hidden] { display: none; }
#article mark { background: none; color: var(--red-letter); }
#article strong { font-weight: 600; }
#article table { width: 100%; border-collapse: collapse; margin: 14px 0 20px; font: 14px/1.45 var(--ui); display: block; overflow-x: auto; }
#article th, #article td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
#article th { font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
#article code { font-size: 0.9em; background: var(--line); padding: 1px 5px; border-radius: 4px; }
#article img { max-width: 100%; }
#article .loading { color: var(--muted); font-family: var(--ui); font-size: 14px; padding: 30px 0; }

.connections { margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--line); font-family: var(--ui); }
.connections h3 { font: 600 12px var(--ui); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin: 18px 0 10px; }
.connections .list { display: flex; flex-wrap: wrap; gap: 6px; }
.connections a {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; padding: 4px 10px 4px 8px; border-radius: 999px;
  background: var(--line); color: var(--text); text-decoration: none;
}
.connections a:hover { background: color-mix(in srgb, var(--g) 22%, transparent); }
.connections .tags span { font-size: 12.5px; color: var(--muted); padding: 3px 9px; border: 1px solid var(--line); border-radius: 999px; }
.connections a i { width: 7px; height: 7px; border-radius: 50%; background: var(--g); flex: none; }

/* ---------- Popover ---------- */
#popover {
  position: fixed; z-index: 10; width: 320px; max-width: calc(100vw - 32px);
  background: var(--panel-solid); border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow); padding: 14px 16px; pointer-events: none;
  font: 13.5px/1.5 var(--serif);
}
#popover .p-title { font: 600 20px/1.15 var(--display); margin-bottom: 2px; }
#popover .p-sub { font: 11.5px var(--ui); color: var(--muted); margin-bottom: 8px; }
#popover .p-body.verse { -webkit-line-clamp: 9; }
#popover .p-body sup { font: 600 9px var(--ui); color: var(--accent); margin: 0 3px 0 1px; }
#popover .p-body mark { background: none; color: var(--red-letter); }
#popover .p-body { color: color-mix(in srgb, var(--text) 85%, var(--muted)); display: -webkit-box; -webkit-line-clamp: 6; -webkit-box-orient: vertical; overflow: hidden; }

.noscript { position: fixed; inset: 0; display: grid; place-items: center; color: var(--muted); }

/* ---------- Small screens ---------- */
@media (max-width: 760px) {
  :root { --reader-w: 100vw; }
  .hud-top { top: 10px; left: 10px; width: calc(100vw - 72px); padding: 10px 12px; }
  .brand-title { font-size: 21px; }
  .brand-sub { display: none; }
  .search { margin-top: 8px; }
  .search kbd { display: none; }
  .hud-tools { top: 10px; right: 10px; }
  body.reading .hud-tools { right: 10px; }
  .hud-legend {
    left: 10px; right: 10px; bottom: 10px; flex-wrap: nowrap; overflow-x: auto;
    scrollbar-width: none;
  }
  .hud-legend::-webkit-scrollbar { display: none; }
  .hint { display: none; }
  #reader {
    top: auto; left: 0; right: 0; bottom: 0; width: 100%; height: 78vh;
    border-radius: 18px 18px 0 0; border-bottom: 0;
    transform: translateY(102%);
  }
  .reader-scroll { padding: 4px 20px 40px; }
  #article h1.title { font-size: 33px; }
  #popover { display: none; }
}

/* Embedded in the design comparison page */
:root[data-embed] .hud-tools, :root[data-embed] .hud-legend, :root[data-embed] .hint, :root[data-embed] .brand-sub { display: none; }
:root[data-embed] .hud-top { width: min(300px, calc(100vw - 24px)); top: 12px; left: 12px; padding: 10px 12px; }
:root[data-embed] .brand-title { font-size: 19px; }

/* Landing window: explains the graph on first arrival */
.landing {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 16px;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: opacity .5s ease, visibility .5s;
}
.landing[hidden] { display: none; }
.landing.is-gone { opacity: 0; visibility: hidden; }
.landing-card {
  width: min(460px, 100%); max-height: calc(100dvh - 32px); overflow-y: auto;
  text-align: center; padding: 30px 30px 26px;
  background: var(--panel-solid); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow);
  transition: transform .5s ease;
}
.landing.is-gone .landing-card { transform: translateY(8px) scale(.985); }
.landing-eyebrow { font: 500 10px var(--ui); letter-spacing: .2em; text-transform: uppercase; color: var(--accent); }
.landing-title { margin: 12px 0; font: 600 38px/1.05 var(--display); letter-spacing: -0.01em; color: var(--text); }
.landing-title span { color: var(--accent); font-style: italic; }
.landing-lede { margin: 0; font: 400 15px/1.6 var(--serif); color: var(--muted); }
.landing-stats {
  display: flex; justify-content: center; gap: 30px; margin: 20px 0 18px; padding: 12px 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.landing-stats b { display: block; font: 600 26px var(--display); color: var(--accent); }
.landing-stats span { font: 500 9.5px var(--ui); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.landing-how { list-style: none; margin: 0 0 16px; padding: 0; text-align: left; font: 400 13px/1.55 var(--ui); color: var(--muted); }
.landing-how li { position: relative; padding-left: 18px; }
.landing-how li + li { margin-top: 8px; }
.landing-how li::before { content: "✦"; position: absolute; left: 0; top: 0; font-size: 10px; color: var(--accent); }
.landing-how b { font-weight: 600; color: var(--text); }
.landing-how kbd { font: 11px var(--ui); padding: 0 5px; border: 1px solid var(--line); border-radius: 4px; color: var(--text); }
.landing-key { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 14px; margin: 0 0 22px; font: 500 11px var(--ui); color: var(--muted); }
.landing-key span::before {
  content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%;
  background: var(--c); box-shadow: 0 0 6px var(--c); vertical-align: 1px;
}
.landing-enter {
  font: 500 12px var(--ui); letter-spacing: .14em; text-transform: uppercase; cursor: pointer;
  color: var(--accent); background: transparent; border: 1px solid var(--accent); border-radius: 999px; padding: 10px 28px;
  transition: background .2s, color .2s;
}
.landing-enter:hover, .landing-enter:focus-visible { background: var(--accent); color: var(--bg); outline: none; }
@media (prefers-reduced-motion: reduce) { .landing, .landing-card { transition: none; } }

/* Quick tour of the toolbar */
.tour { position: fixed; inset: 0; z-index: 90; cursor: pointer; animation: tour-in .3s ease; transition: opacity .35s; }
.tour.is-gone { opacity: 0; pointer-events: none; }
@keyframes tour-in { from { opacity: 0; } }
.tour-ring {
  position: fixed; border-radius: 12px; border: 1.5px solid var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
  transition: top .38s cubic-bezier(.3, .7, .2, 1), left .38s cubic-bezier(.3, .7, .2, 1);
  animation: tour-pulse 1.3s ease-in-out infinite; pointer-events: none;
}
@keyframes tour-pulse {
  50% { box-shadow: 0 0 0 9px color-mix(in srgb, var(--accent) 0%, transparent), 0 0 18px color-mix(in srgb, var(--accent) 35%, transparent); }
}
.hud-tools button.tour-press { transform: scale(.86); }
.hud-tools button { transition: transform .18s ease; }
.hud-tools button.tour-lit { color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.tour-tip {
  position: fixed; width: min(250px, calc(100vw - 84px)); padding: 13px 15px 11px;
  background: var(--panel-solid); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow);
  font: 13px/1.5 var(--ui); color: var(--muted); cursor: default;
  transition: top .38s cubic-bezier(.3, .7, .2, 1);
}
.tour-tip::after {
  content: ""; position: absolute; right: -6px; top: calc(var(--arrow, 24px) - 6px);
  width: 10px; height: 10px; background: var(--panel-solid);
  border-top: 1px solid var(--line); border-right: 1px solid var(--line); transform: rotate(45deg);
  transition: top .38s cubic-bezier(.3, .7, .2, 1);
}
.tour-tip.swap .tour-title, .tour-tip.swap .tour-text { animation: tour-swap .3s ease; }
@keyframes tour-swap { from { opacity: 0; transform: translateX(6px); } }
.tour-step { font: 500 10px var(--ui); letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.tour-title { margin-top: 3px; font: 600 20px/1.2 var(--display); color: var(--text); }
.tour-text { margin: 4px 0 10px; }
.tour-actions { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.tour-actions button {
  border: 0; background: none; cursor: pointer; font: 500 12px var(--ui); letter-spacing: .04em; padding: 4px 2px;
}
.tour-skip { color: var(--faint); }
.tour-skip:hover { color: var(--text); }
.tour-next { color: var(--accent); }
.tour-next:hover, .tour-next:focus-visible { text-decoration: underline; text-underline-offset: 3px; }
.tour-actions button:focus { outline: none; }
.tour-dots { display: flex; gap: 5px; }
.tour.single .tour-step, .tour.single .tour-dots, .tour.single .tour-skip { display: none; }
.tour.single .tour-actions { justify-content: flex-end; }
.tour-dots i { width: 5px; height: 5px; border-radius: 50%; background: var(--line); transition: background .2s, transform .2s; }
.tour-dots i.on { background: var(--accent); transform: scale(1.3); }
@media (prefers-reduced-motion: reduce) {
  .tour, .tour-ring, .tour-tip, .tour-tip::after { animation: none; transition: none; }
  .tour-tip.swap .tour-title, .tour-tip.swap .tour-text { animation: none; }
}