:root {
  /* IBM Plex Mono only sparingly for catalog numbers */
  --archive-ink: #15110D;
  --aged-washi: #E7D8BA;
  --oxidized-sepia: #8A5A32;
  --cinnabar: #B23A2E;
  --faded-indigo: #273A4D;
  --dust-gray: #A59B8A;
  --lamp-gold: #D4A84F;
  --serif-jp: "Noto Serif JP", serif;
  --mincho: "Shippori Mincho", serif;
  --sans-jp: "Noto Sans JP", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--archive-ink);
  color: var(--aged-washi);
  font-family: var(--sans-jp);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 68% 18%, rgba(212, 168, 79, .18), transparent 24rem),
    radial-gradient(circle at 22% 76%, rgba(39, 58, 77, .52), transparent 29rem),
    linear-gradient(115deg, #15110D 0%, #20180f 42%, #0d0b09 100%);
  pointer-events: none;
  z-index: -4;
}

.grain {
  position: fixed;
  inset: 0;
  opacity: .22;
  pointer-events: none;
  z-index: 8;
  mix-blend-mode: soft-light;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(231, 216, 186, .45) 0 1px, transparent 1px),
    radial-gradient(circle at 70% 60%, rgba(138, 90, 50, .32) 0 1px, transparent 1px),
    repeating-linear-gradient(0deg, rgba(231,216,186,.08) 0 1px, transparent 1px 5px);
  background-size: 19px 23px, 31px 29px, 100% 6px;
}

.lamp {
  position: fixed;
  width: 34vw;
  height: 34vw;
  border-radius: 50%;
  filter: blur(45px);
  opacity: .34;
  pointer-events: none;
  z-index: -2;
  animation: lampDrift 12s ease-in-out infinite alternate;
}

.lamp-one { background: rgba(212, 168, 79, .45); top: -11vw; right: 10vw; }
.lamp-two { background: rgba(39, 58, 77, .6); bottom: -16vw; left: 6vw; animation-delay: -4s; }

.archive-spine {
  position: fixed;
  left: 1.1rem;
  top: 5vh;
  bottom: 5vh;
  width: 5.8rem;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: .75rem;
  border-left: 1px solid rgba(165, 155, 138, .42);
}

.spine-title {
  writing-mode: vertical-rl;
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .22em;
  color: var(--dust-gray);
  margin: 0 auto .7rem;
}

.year-tab {
  position: relative;
  display: block;
  color: var(--archive-ink);
  background: linear-gradient(90deg, var(--aged-washi), #cbb58e);
  text-decoration: none;
  font-family: var(--mono);
  font-size: .78rem;
  padding: .52rem .42rem;
  clip-path: polygon(0 0, 90% 0, 100% 50%, 90% 100%, 0 100%);
  transform-origin: left center;
  box-shadow: 0 8px 18px rgba(0,0,0,.25);
  transition: transform .25s ease, background .25s ease, color .25s ease;
}

.year-tab:hover, .year-tab.active {
  transform: translateX(.35rem);
  background: linear-gradient(90deg, var(--lamp-gold), var(--aged-washi));
  color: var(--cinnabar);
}

.thread-line {
  position: absolute;
  left: .1rem;
  top: 0;
  width: 1px;
  height: 0;
  background: linear-gradient(var(--lamp-gold), var(--cinnabar));
  box-shadow: 0 0 14px rgba(212,168,79,.85);
  transition: height .35s ease;
}

.evidence-table { width: 100%; }

.tableau {
  position: relative;
  min-height: 100vh;
  padding: 7vh 7vw 7vh 10vw;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4vw;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.tableau::after {
  content: "";
  position: absolute;
  inset: 2.5rem;
  border: 1px solid rgba(165, 155, 138, .16);
  pointer-events: none;
  z-index: -1;
}

.opening { grid-template-columns: .9fr 1.1fr; }

.map-field {
  position: absolute;
  inset: 5vh 5vw;
  opacity: .65;
  z-index: -1;
}

.contour-map, .routes-map { width: 100%; height: 100%; overflow: visible; }
.contour-map path, .routes-map .coast, .routes-map .route, .acetate svg path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contour-map path {
  stroke: var(--oxidized-sepia);
  stroke-width: 2;
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: drawPath 4.8s ease forwards;
  filter: drop-shadow(0 0 5px rgba(212,168,79,.12));
}

.tracing-sheet, .document, .folded-map, .chalkboard, .witness-file, .postwar-sheet {
  position: relative;
  background:
    linear-gradient(120deg, rgba(255,255,255,.10), transparent 26%),
    radial-gradient(circle at 20% 16%, rgba(138,90,50,.15), transparent 8rem),
    var(--aged-washi);
  color: var(--archive-ink);
  box-shadow: 0 30px 70px rgba(0,0,0,.45), inset 0 0 0 1px rgba(138,90,50,.18);
}

.title-sheet {
  grid-column: 2;
  min-height: 68vh;
  padding: 3rem;
  transform: rotate(-2deg);
  clip-path: polygon(0 0, 96% 0, 100% 7%, 100% 100%, 5% 100%, 0 93%);
  mix-blend-mode: screen;
}

.catalog {
  display: inline-block;
  font-family: var(--mono);
  color: var(--cinnabar);
  letter-spacing: .14em;
  font-size: .72rem;
  border-bottom: 1px solid rgba(178,58,46,.45);
  padding-bottom: .32rem;
}

h1, h2 { margin: 0; }
h1 { display: flex; align-items: flex-end; gap: 2rem; margin-top: 2rem; }
.vertical-title {
  writing-mode: vertical-rl;
  font-family: var(--serif-jp);
  font-size: clamp(5.8rem, 12vw, 11rem);
  line-height: .86;
  color: var(--archive-ink);
  text-shadow: 6px 6px 0 rgba(178, 58, 46, .13);
}
.horizontal-title {
  font-family: var(--mincho);
  font-size: clamp(2.2rem, 6vw, 6.5rem);
  color: var(--faded-indigo);
}

.thesis {
  max-width: 35rem;
  margin: 2rem 0 0 auto;
  font-size: clamp(1rem, 1.4vw, 1.3rem);
  line-height: 1.9;
  border-left: 4px solid var(--cinnabar);
  padding-left: 1.2rem;
}

.date-rail {
  position: absolute;
  left: 11vw;
  right: 7vw;
  bottom: 4vh;
  display: flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--mono);
  color: var(--dust-gray);
  font-size: .82rem;
}
.date-rail i { height: 1px; flex: 1; background: linear-gradient(90deg, var(--dust-gray), var(--cinnabar)); }

.document { padding: 2.4rem; transform: rotate(1deg); }
.newspaper { grid-column: 1 / span 2; max-width: 74rem; margin: 0 auto; }
.paper-pin, .paper-pin::after {
  position: absolute;
  content: "";
  border-radius: 50%;
  background: var(--lamp-gold);
  box-shadow: 0 4px 10px rgba(0,0,0,.3);
}
.paper-pin { width: 1rem; height: 1rem; top: 1rem; right: 1.5rem; }
.paper-pin::after { width: .34rem; height: .34rem; top: .33rem; left: .33rem; background: var(--archive-ink); opacity: .35; }

.document h2, .edge-note h2, .chalkboard h2, .witness-file h2, .postwar-sheet h2 {
  font-family: var(--serif-jp);
  font-size: clamp(2rem, 4.5vw, 5rem);
  line-height: 1.04;
  margin: 1rem 0 1.5rem;
}
.columns {
  columns: 3 15rem;
  column-gap: 2rem;
  column-rule: 1px solid rgba(138,90,50,.32);
  font-size: 1rem;
  line-height: 1.9;
}
.quote { font-family: var(--mincho); font-size: 1.24rem; color: var(--cinnabar); }

.museum-label {
  background: rgba(231,216,186,.9);
  color: var(--archive-ink);
  padding: 1rem 1.1rem;
  border-left: 5px solid var(--cinnabar);
  font-family: var(--mincho);
  line-height: 1.65;
  box-shadow: 0 18px 40px rgba(0,0,0,.35);
}
.tilted { position: absolute; right: 8vw; bottom: 13vh; max-width: 21rem; transform: rotate(-4deg); }

.folded-map-panel { background: radial-gradient(circle at 74% 37%, rgba(39,58,77,.32), transparent 28rem); }
.folded-map {
  min-height: 62vh;
  padding: 2rem;
  clip-path: polygon(0 0, 86% 0, 100% 18%, 96% 100%, 0 96%);
  transform: rotate(-1.8deg);
}
.map-fold { position: absolute; inset: 0; pointer-events: none; }
.fold-a { background: linear-gradient(100deg, transparent 0 46%, rgba(138,90,50,.2) 47%, transparent 49%); }
.fold-b { background: linear-gradient(28deg, transparent 0 60%, rgba(39,58,77,.12) 61%, transparent 63%); }
.routes-map .coast { stroke: var(--oxidized-sepia); stroke-width: 3; }
.routes-map .route { stroke: var(--cinnabar); stroke-width: 2; stroke-dasharray: 8 9; }
.routes-map circle { fill: var(--cinnabar); opacity: .78; }
.map-caption { font-family: var(--mono); color: var(--faded-indigo); font-size: .75rem; letter-spacing: .08em; }
.edge-note { align-self: end; max-width: 33rem; color: var(--aged-washi); }
.edge-note p, .chalkboard p, .witness-file p, .postwar-sheet p { line-height: 1.9; font-size: 1.05rem; }

.blackboard { grid-template-columns: 1.2fr .8fr; background: linear-gradient(135deg, rgba(39,58,77,.25), transparent); }
.chalkboard {
  padding: 2.7rem;
  background:
    repeating-linear-gradient(0deg, rgba(231,216,186,.03) 0 2px, transparent 2px 9px),
    #273A4D;
  color: var(--aged-washi);
  border: 10px solid #8A5A32;
}
.chalk-diagram { display: flex; align-items: center; gap: 1rem; margin: 2rem 0; font-family: var(--mincho); font-size: 1.2rem; }
.chalk-diagram i { width: 5rem; height: 2px; background: var(--aged-washi); transform: rotate(-6deg); opacity: .7; }
.stamp-button {
  appearance: none;
  background: transparent;
  border: 2px solid var(--cinnabar);
  color: var(--cinnabar);
  font-family: var(--mono);
  letter-spacing: .15em;
  padding: .85rem 1rem;
  transform: rotate(-3deg);
  cursor: pointer;
  transition: transform .18s ease, background .18s ease;
}
.stamp-button.pressed { transform: rotate(-3deg) scale(.94); background: rgba(178,58,46,.16); }
.glossary-note {
  margin-top: 1.4rem;
  color: var(--aged-washi);
  border-left: 4px solid var(--lamp-gold);
  padding-left: 1rem;
  opacity: 0;
  transform: translateY(.8rem);
  transition: opacity .35s ease, transform .35s ease;
}
.glossary-note.visible { opacity: 1; transform: translateY(0); }
.redaction-file { height: 58vh; align-self: center; background: var(--aged-washi); padding: 3rem; transform: rotate(5deg); box-shadow: 0 25px 60px rgba(0,0,0,.4); }
.redaction-file span { display: block; height: 1.35rem; background: var(--archive-ink); margin: 2rem 0; transform-origin: left; animation: redact 1.2s ease both; }
.redaction-file span:nth-child(2) { width: 80%; animation-delay: .3s; background: var(--cinnabar); }
.redaction-file span:nth-child(3) { width: 55%; animation-delay: .6s; }

.acetate-panel { grid-template-columns: 1fr 1fr; }
.witness-file { padding: 2.4rem 2.4rem 2.4rem 4rem; min-height: 62vh; }
.punched-holes { position: absolute; left: 1rem; top: 2rem; bottom: 2rem; display: flex; flex-direction: column; justify-content: space-around; }
.punched-holes i { width: .9rem; height: .9rem; border-radius: 50%; background: var(--archive-ink); opacity: .28; }
.name-fields { display: grid; grid-template-columns: max-content 1fr; gap: .75rem 1rem; font-family: var(--mono); color: var(--faded-indigo); margin-top: 2rem; }
.name-fields b { border-bottom: 2px solid rgba(138,90,50,.42); min-height: 1.3rem; }
.acetate {
  position: relative;
  min-height: 55vh;
  background: rgba(231,216,186,.2);
  border: 1px solid rgba(231,216,186,.45);
  box-shadow: 0 24px 70px rgba(0,0,0,.32), inset 0 0 40px rgba(231,216,186,.08);
  cursor: grab;
  backdrop-filter: blur(2px);
  transform: translate(0, 0) rotate(-2deg);
  transition: box-shadow .2s ease;
}
.acetate.dragging { cursor: grabbing; box-shadow: 0 32px 90px rgba(0,0,0,.5), 0 0 20px rgba(212,168,79,.22); }
.acetate svg { width: 100%; height: 100%; position: absolute; inset: 0; }
.acetate svg path { stroke: var(--lamp-gold); stroke-width: 2.2; stroke-dasharray: 12 8; opacity: .82; }
.acetate-handle { position: absolute; top: 1rem; right: 1rem; font-family: var(--mono); font-size: .72rem; color: var(--lamp-gold); letter-spacing: .15em; }
.acetate-label { position: absolute; right: 9vw; bottom: 8vh; max-width: 20rem; }

.quiet { grid-template-columns: .8fr 1.2fr; }
.quiet-year { font-family: var(--mincho); font-size: clamp(7rem, 18vw, 18rem); color: var(--aged-washi); opacity: .18; line-height: .8; }
.quiet-sentence { font-family: var(--serif-jp); font-size: clamp(1.4rem, 3vw, 3.2rem); line-height: 1.5; color: var(--aged-washi); max-width: 48rem; }
.memorial-pins { position: absolute; left: 17vw; bottom: 16vh; display: flex; gap: 1.4rem; }
.memorial-pins i { width: .7rem; height: .7rem; border-radius: 50%; border: 1px solid var(--dust-gray); opacity: .65; }
.postwar-sheet { grid-column: 2; padding: 2.2rem; transform: rotate(2deg); }

.tableau .document, .tableau .folded-map, .tableau .edge-note, .tableau .chalkboard, .tableau .redaction-file, .tableau .witness-file, .tableau .acetate, .tableau .postwar-sheet, .tableau .museum-label, .quiet-sentence {
  opacity: 0;
  transform: translateY(2rem) rotate(var(--r, 0deg));
  transition: opacity .8s ease, transform .8s ease;
}
.tableau.in-view .document, .tableau.in-view .folded-map, .tableau.in-view .edge-note, .tableau.in-view .chalkboard, .tableau.in-view .redaction-file, .tableau.in-view .witness-file, .tableau.in-view .acetate, .tableau.in-view .postwar-sheet, .tableau.in-view .museum-label, .tableau.in-view .quiet-sentence {
  opacity: 1;
  transform: translateY(0) rotate(var(--r, 0deg));
}
.newspaper { --r: 1deg; }
.folded-map { --r: -1.8deg; }
.tilted { --r: -4deg; }
.redaction-file { --r: 5deg; }
.postwar-sheet { --r: 2deg; }

@keyframes drawPath { to { stroke-dashoffset: 0; } }
@keyframes lampDrift { from { transform: translate3d(-1rem, 0, 0) scale(1); } to { transform: translate3d(1.4rem, 1rem, 0) scale(1.08); } }
@keyframes redact { from { transform: scaleX(0); } to { transform: scaleX(1); } }

@media (max-width: 900px) {
  .archive-spine { left: .4rem; width: 4.6rem; }
  .tableau { grid-template-columns: 1fr; padding-left: 6.2rem; padding-right: 1.2rem; }
  .title-sheet, .newspaper, .postwar-sheet { grid-column: auto; }
  .columns { columns: 1; }
  .tilted, .acetate-label { position: relative; right: auto; bottom: auto; }
  h1 { flex-direction: column; align-items: flex-start; }
}