:root {
  /* Typography notes: IBM Plex Mono sparingly for catalog numbers; Source Sans * / Source Sans 333* / Source Sans 3** for small wiki labels. */
  --parchment: #F3E8CF;
  --ivory: #FFF8E8;
  --indigo: #18244A;
  --vermilion: #D94B3D;
  --brass: #A97832;
  --blue: #597FA6;
  --ink: #241A16;
  --vellum: #CBB99A;
  --serif: "Libre Baskerville", "Iowan Old Style", "Baskerville", "Georgia", serif;
  --jp: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Source Sans 3", "Inter", system-ui, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--parchment);
  font-family: var(--sans);
  overflow-x: hidden;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: .42;
  background:
    radial-gradient(circle at 12% 18%, rgba(36,26,22,.12) 0 1px, transparent 1.5px),
    radial-gradient(circle at 78% 62%, rgba(169,120,50,.12) 0 1px, transparent 1.7px),
    repeating-linear-gradient(94deg, rgba(255,248,232,.16) 0 2px, rgba(203,185,154,.09) 2px 4px);
  mix-blend-mode: multiply;
}

.thread-map {
  position: fixed;
  inset: 0;
  z-index: 12;
  pointer-events: none;
  opacity: .72;
}
#redThread {
  fill: none;
  stroke: var(--vermilion);
  stroke-width: .18;
  stroke-linecap: round;
  stroke-dasharray: 260;
  stroke-dashoffset: var(--thread-offset, 260);
  filter: drop-shadow(0 1px 0 rgba(36,26,22,.2));
}

.article-trail {
  position: fixed;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 60;
  display: grid;
  gap: .5rem;
}
.trail-link {
  width: 3.1rem;
  height: 4.6rem;
  display: grid;
  place-items: center;
  gap: .1rem;
  text-decoration: none;
  color: var(--indigo);
  background: rgba(255,248,232,.78);
  border: 1px solid rgba(36,26,22,.25);
  box-shadow: 3px 3px 0 rgba(36,26,22,.1);
  font-family: var(--mono);
  transition: transform .35s ease, background .35s ease;
  writing-mode: vertical-rl;
}
.trail-link span { color: var(--vermilion); font-size: .7rem; }
.trail-link b { font-size: .78rem; letter-spacing: .12em; }
.trail-link.active { background: var(--indigo); color: var(--ivory); transform: translateX(.45rem) rotate(-2deg); }

.plate {
  min-height: 100vh;
  position: relative;
  isolation: isolate;
  padding: clamp(3rem, 5vw, 5rem) clamp(2rem, 6vw, 6rem) clamp(3rem, 5vw, 5rem) clamp(5.7rem, 9vw, 8rem);
  display: grid;
  place-items: center;
  background:
    linear-gradient(90deg, rgba(36,26,22,.08), transparent 13%, transparent 87%, rgba(36,26,22,.08)),
    var(--parchment);
}
.plate::before {
  content: attr(data-entry);
  position: absolute;
  right: 2rem;
  top: 1.4rem;
  font: 700 .9rem/1 var(--mono);
  color: var(--brass);
  border: 1px solid var(--vellum);
  padding: .45rem .7rem;
  transform: rotate(2deg);
}

.book-spread {
  width: min(1120px, 94vw);
  min-height: 78vh;
  display: grid;
  grid-template-columns: 5rem 1fr 1fr;
  filter: drop-shadow(0 25px 35px rgba(36,26,22,.2));
}
.spine-stamp {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  background: var(--indigo);
  color: var(--ivory);
  font: 800 1.1rem/1 var(--mono);
  letter-spacing: .25em;
  display: grid;
  place-items: center;
  text-transform: uppercase;
  border-radius: 1rem 0 0 1rem;
}
.page {
  position: relative;
  padding: clamp(2rem, 4vw, 4rem);
  background: linear-gradient(115deg, rgba(255,248,232,.94), rgba(243,232,207,.98));
  border: 1px solid rgba(36,26,22,.2);
  overflow: hidden;
}
.left-page { border-right: 2px solid rgba(36,26,22,.18); }
.right-page { transform: translateY(1.5rem) rotate(.6deg); }
.folio, .wiki-path, .cabinet-heading p, .section-label { font: 700 .78rem/1.4 var(--mono); letter-spacing: .13em; color: var(--brass); text-transform: uppercase; }
h1, h2 { font-family: var(--serif); margin: 0; color: var(--indigo); }
h1 { font-size: clamp(4rem, 11vw, 9rem); line-height: .82; }
h1 span { display: block; }
.jp { font-family: var(--jp); color: var(--vermilion); font-weight: 700; }
.pronunciation { position: absolute; inset: 9% 8% auto auto; display: grid; gap: .8rem; color: var(--blue); font-family: var(--jp); opacity: .7; }
.pronunciation i { animation: dust 6s ease-in-out infinite; }
.pronunciation i:nth-child(2n) { animation-delay: -2s; }
.definition { max-width: 34rem; margin-top: 2rem; font: 1.25rem/1.7 var(--serif); }
.definition b { color: var(--vermilion); }
.citation-button {
  margin-top: 2rem;
  background: transparent;
  color: var(--blue);
  border: 0;
  border-bottom: 2px solid var(--blue);
  font: 700 1rem/1 var(--mono);
  padding: .4rem 0;
  cursor: pointer;
}
.stamp {
  position: absolute;
  right: 2rem;
  top: 2rem;
  border: 3px double var(--vermilion);
  color: var(--vermilion);
  border-radius: 50%;
  width: 8.2rem;
  height: 8.2rem;
  display: grid;
  place-items: center;
  text-align: center;
  font: 800 .85rem/1.35 var(--mono);
  transform: rotate(14deg);
  opacity: .72;
}
.pull-definition { margin: 9rem 0 2rem; font: clamp(2rem, 4vw, 4rem)/1.12 var(--serif); color: var(--ink); }
.footnote { max-width: 24rem; color: var(--indigo); font-family: var(--mono); }
.pencil-line { width: 0; height: .42rem; background: var(--vermilion); transform: rotate(-1.2deg); animation: underline 1.7s .5s ease forwards; opacity: .86; }

.plate-symptoms { background: radial-gradient(circle at 50% 46%, var(--ivory), var(--parchment) 56%, #e7d4af); }
.section-label { position: absolute; left: 7rem; top: 3rem; writing-mode: vertical-rl; }
.radial-index { position: relative; width: min(72vw, 860px); height: 70vh; display: grid; place-items: center; }
.index-core {
  width: min(31rem, 66vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--brass);
  background: rgba(255,248,232,.7);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem;
  box-shadow: inset 0 0 0 1.2rem rgba(203,185,154,.18);
}
.index-core span { font: 800 1rem/1.25 var(--mono); color: var(--vermilion); letter-spacing: .22em; }
.index-core p { font: clamp(1.5rem, 3vw, 2.7rem)/1.25 var(--serif); margin: 0; color: var(--indigo); }
.paper-tab {
  position: absolute;
  left: calc(50% + var(--x)); top: calc(50% + var(--y));
  transform: translate(-50%, -50%) rotate(var(--r));
  width: 15rem;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(36,26,22,.25);
  background: rgba(255,248,232,.86);
  color: var(--ink);
  font: 700 .9rem/1.2 var(--mono);
  cursor: pointer;
  box-shadow: 6px 7px 0 rgba(36,26,22,.08);
  transition: transform .35s ease, background .35s ease;
}
.paper-tab.active { background: var(--vermilion); color: var(--ivory); transform: translate(-50%, -50%) rotate(var(--r)) scale(1.08); }
.contradiction { position: absolute; right: 5vw; bottom: 8vh; max-width: 25rem; font: italic 1.15rem/1.5 var(--serif); color: var(--indigo); }

.debate-grid { width: min(1050px, 90vw); min-height: 74vh; position: relative; }
.note { position: absolute; background: rgba(255,248,232,.78); border: 1px solid rgba(36,26,22,.22); padding: 2rem; box-shadow: 10px 12px 0 rgba(36,26,22,.08); backdrop-filter: blur(2px); }
.note span { font: 700 .78rem/1 var(--mono); color: var(--brass); }
.note p { font: 1.35rem/1.55 var(--serif); }
.note em { color: var(--blue); font-family: var(--mono); }
.blue-note { left: 5%; top: 6%; width: 48%; transform: rotate(-2deg); border-left: .35rem solid var(--blue); }
.red-note { right: 4%; top: 30%; width: 43%; transform: rotate(3deg); border-left: .35rem solid var(--vermilion); }
.graphite-note { left: 25%; bottom: 5%; width: 38%; transform: rotate(-.8deg); }
.diagram { position: absolute; right: 6%; bottom: 4%; width: 15rem; height: 15rem; color: var(--indigo); font: 700 .85rem var(--mono); display: grid; place-items: center; }
.orbit { position: absolute; inset: 1rem; border: 1px solid var(--blue); border-radius: 51% 49% 46% 54%; animation: spin 14s linear infinite; }
.orbit.small { inset: 3.4rem; border-color: var(--vermilion); animation-duration: 9s; animation-direction: reverse; }

.plate-cabinet { background: linear-gradient(180deg, #d9c196, var(--parchment)); }
.cabinet-heading { position: absolute; top: 7vh; left: 9vw; }
.cabinet-heading h2, .unfinished-page h2 { font-size: clamp(3rem, 7vw, 6.5rem); }
.drawer-track { width: min(1100px, 88vw); display: flex; align-items: end; gap: -1rem; margin-top: 8rem; }
.drawer { position: relative; flex: 1; min-height: 24rem; background: linear-gradient(90deg, #7a451e, #A97832 20%, #7a451e); border: 1px solid rgba(36,26,22,.38); transform: translateX(0); transition: flex .55s ease, transform .55s ease; box-shadow: 0 16px 25px rgba(36,26,22,.22); overflow: hidden; }
.drawer.open { flex: 2.1; transform: translateY(-1.4rem); }
.drawer-pull { margin: 1.4rem auto; display: block; width: 6rem; height: 2.2rem; border-radius: 9rem; border: 2px solid #6c461f; background: var(--brass); color: var(--ivory); font: 800 .9rem var(--mono); cursor: pointer; }
.drawer-paper { margin: 2.3rem auto; width: 78%; min-height: 13rem; background: var(--ivory); border: 1px solid rgba(36,26,22,.28); padding: 1.4rem; transform: translateY(105%); transition: transform .55s ease; font: 1.15rem/1.5 var(--serif); }
.drawer.open .drawer-paper { transform: translateY(0) rotate(-1deg); }
.drawer-paper b { color: var(--vermilion); font-family: var(--mono); }

.plate-unfinished { background: var(--indigo); color: var(--ivory); }
.unfinished-page {
  width: min(900px, 86vw);
  min-height: 72vh;
  color: var(--ink);
  background: rgba(255,248,232,.82);
  border: 1px solid rgba(255,248,232,.5);
  padding: clamp(2rem, 5vw, 5rem);
  box-shadow: 0 22px 40px rgba(0,0,0,.25);
  position: relative;
}
.unfinished-page::after { content: ""; position: absolute; right: 2rem; top: 2rem; width: 10rem; height: 8rem; border-top: 2px solid var(--vermilion); border-right: 2px solid var(--vermilion); transform: rotate(4deg); opacity: .7; }
.typed-line { min-height: 7rem; max-width: 42rem; margin-top: 2rem; font: clamp(1.6rem, 3vw, 3rem)/1.35 var(--serif); color: var(--indigo); }
.source-cards { display: flex; gap: 1rem; flex-wrap: wrap; margin: 3rem 0; }
.source-cards span { background: var(--parchment); color: var(--blue); border-bottom: 2px solid var(--blue); padding: .6rem .8rem; font-family: var(--mono); transform: rotate(var(--rot, -2deg)); }
.source-cards span:nth-child(2) { --rot: 2deg; }
.last-note { font: 1.2rem/1.6 var(--mono); color: var(--ink); }
.caret { display: inline-block; width: .55rem; height: 1.3rem; margin-left: .2rem; background: var(--vermilion); vertical-align: -.25rem; animation: blink 1s steps(2) infinite; }

@keyframes underline { to { width: min(30rem, 86%); } }
@keyframes dust { 50% { transform: translateY(-1.2rem) rotate(8deg); opacity: .35; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes blink { 50% { opacity: 0; } }

@media (max-width: 780px) {
  .plate { padding-left: 4.8rem; }
  .book-spread { grid-template-columns: 3.4rem 1fr; }
  .right-page { grid-column: 2; transform: none; }
  .paper-tab { width: 11rem; font-size: .75rem; }
  .note { position: relative; inset: auto; width: auto; margin: 1rem 0; }
  .diagram { display: none; }
  .drawer-track { flex-direction: column; }
  .drawer { width: 100%; min-height: 11rem; }
}