:root {
  --soot: #17110D;
  --indigo: #202B46;
  --washi: #E9D9B8;
  --moth: #F4EDE0;
  --tea: #6F543B;
  --gold: #B99A54;
  --cord: #C83B22;
  --display: "Shippori Mincho", serif;
  --poem: "Zen Old Mincho", serif;
  --tag: "Kosugi Maru", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --mono-note: only accession numbers;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--moth);
  background:
    radial-gradient(circle at 76% 12%, rgba(185, 154, 84, 0.18), transparent 18rem),
    radial-gradient(circle at 24% 36%, rgba(32, 43, 70, 0.75), transparent 36rem),
    linear-gradient(110deg, var(--soot), #090604 48%, var(--indigo));
  font-family: var(--poem);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  z-index: 2;
  background-image:
    linear-gradient(90deg, rgba(244, 237, 224, 0.035) 1px, transparent 1px),
    linear-gradient(rgba(244, 237, 224, 0.025) 1px, transparent 1px),
    radial-gradient(circle, rgba(233, 217, 184, 0.2) 0 1px, transparent 1.4px);
  background-size: 9px 100%, 100% 11px, 41px 41px;
  mix-blend-mode: screen;
}

body.gate-open .cloth-left { transform: translateX(-64%) skewY(-2deg); }
body.gate-open .cloth-right { transform: translateX(64%) skewY(2deg); }
body.gate-open .string-wordmark { transform: translateX(-50%) scaleX(1.1) rotate(-1deg); }

.paper-filters { position: absolute; }

.dust-field {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  background:
    radial-gradient(circle at var(--dust-x, 54%) var(--dust-y, 28%), rgba(233, 217, 184, 0.14), transparent 17rem),
    radial-gradient(circle at 30% 70%, rgba(185, 154, 84, 0.09), transparent 23rem);
  transition: background-position 0.2s ease;
}

.moon-slit {
  position: fixed;
  top: -18vh;
  left: 61vw;
  width: 12vw;
  height: 132vh;
  background: linear-gradient(180deg, transparent, rgba(244, 237, 224, 0.16), transparent);
  filter: blur(18px);
  transform: rotate(13deg);
  pointer-events: none;
  z-index: 1;
}

.storehouse { position: relative; z-index: 4; }

.chamber {
  position: relative;
  min-height: 100vh;
  padding: clamp(2rem, 5vw, 6rem);
  overflow: hidden;
  border-top: 1px solid rgba(185, 154, 84, 0.24);
}

.chamber::before {
  content: attr(data-chamber);
  position: absolute;
  right: 1.2rem;
  top: 2rem;
  writing-mode: vertical-rl;
  font-family: var(--mono);
  color: rgba(185, 154, 84, 0.58);
  letter-spacing: 0.18em;
  font-size: 0.72rem;
}

.chamber::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, transparent 0 16%, rgba(0,0,0,0.26) 16.5% 18%, transparent 18.5% 70%, rgba(0,0,0,0.34) 71% 73%, transparent 74%);
}

h1, h2 { font-family: var(--display); margin: 0; font-weight: 800; }
h2 { color: var(--soot); font-size: clamp(2.4rem, 7vw, 6.8rem); line-height: 0.9; letter-spacing: -0.06em; }
p { font-size: clamp(1rem, 1.45vw, 1.35rem); line-height: 1.75; }

.code {
  font-family: var(--mono);
  color: var(--tea);
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.noren-gate {
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at center, rgba(32, 43, 70, 0.48), transparent 32rem),
    linear-gradient(90deg, #050302, var(--soot) 46%, #050302);
}

.beam {
  position: absolute;
  top: 0;
  bottom: 0;
  width: clamp(2.5rem, 7vw, 7rem);
  background: linear-gradient(90deg, rgba(111,84,59,0.2), rgba(23,17,13,0.9), rgba(111,84,59,0.32));
  box-shadow: inset 0 0 44px rgba(0,0,0,0.8);
}
.beam-left { left: 10vw; }
.beam-right { right: 13vw; }

.noren {
  position: absolute;
  inset: 0 14vw;
  top: 0;
  height: 76vh;
  filter: url(#ink-bleed);
  pointer-events: none;
}

.cloth {
  position: absolute;
  top: 0;
  width: 50%;
  height: 100%;
  background:
    repeating-linear-gradient(90deg, rgba(244,237,224,0.02) 0 2px, transparent 2px 8px),
    linear-gradient(180deg, rgba(32,43,70,0.72), rgba(23,17,13,0.92) 72%, rgba(111,84,59,0.4));
  border-bottom: 2px solid rgba(185,154,84,0.4);
  transition: transform 1.4s cubic-bezier(.2,.8,.1,1);
}
.cloth-left { left: 0; transform-origin: top left; }
.cloth-right { right: 0; transform-origin: top right; }
.cloth-seam { position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: rgba(200,59,34,0.45); }

.wordmark-wrap { position: relative; text-align: center; transform: translateY(-4vh); }
.wordmark-wrap h1 {
  font-size: clamp(4rem, 15vw, 15rem);
  color: var(--washi);
  line-height: 0.78;
  letter-spacing: -0.1em;
  text-shadow: 0 18px 40px rgba(0,0,0,0.9);
  max-width: 88vw;
  overflow: hidden;
}
.vertical-title {
  position: absolute;
  right: -2rem;
  top: -5rem;
  writing-mode: vertical-rl;
  font-family: var(--display);
  font-size: clamp(2rem, 5vw, 5rem);
  color: rgba(233,217,184,0.18);
}
.red-string {
  position: absolute;
  display: block;
  height: 4px;
  background: var(--cord);
  box-shadow: 0 0 0 1px rgba(200,59,34,0.3), 0 8px 18px rgba(0,0,0,0.55);
}
.string-wordmark { left: 50%; top: 48%; width: 82%; transform: translateX(-50%) rotate(1deg); transition: transform 1.2s ease; }
.string-wordmark::before, .string-wordmark::after { content: ""; position: absolute; top: -7px; width: 18px; height: 18px; border: 3px solid var(--cord); border-radius: 50%; }
.string-wordmark::before { left: 14%; } .string-wordmark::after { right: 18%; }

.gate-label { position: absolute; left: 9vw; bottom: 12vh; max-width: 24rem; }
.paper-note, .paper-panel {
  background:
    radial-gradient(circle at 20% 10%, rgba(244,237,224,0.55), transparent 12rem),
    linear-gradient(135deg, var(--moth), var(--washi));
  color: var(--soot);
  padding: clamp(1.2rem, 3vw, 2.4rem);
  box-shadow: 0 22px 50px rgba(0,0,0,0.52), inset 0 0 40px rgba(111,84,59,0.13);
  filter: url(#torn-paper);
}
.tilt-left { transform: rotate(-2deg); }
.tilt-right { transform: rotate(2deg); }

.diegetic-control, .diegetic-link {
  font-family: var(--tag);
  color: var(--soot);
  background: var(--washi);
  border: 0;
  border-bottom: 3px solid var(--cord);
  padding: 0.75rem 1.1rem;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 12px 24px rgba(0,0,0,0.4);
}
.pull-tab { position: absolute; right: 13vw; bottom: 16vh; transform: rotate(2deg); }

.receipt-drawer { background: linear-gradient(135deg, var(--soot), #26180f 55%, var(--indigo)); }
.drawer-case { position: relative; width: min(74rem, 88vw); margin: 12vh auto 0; height: 62vh; }
.drawer-face {
  position: absolute;
  inset: 6% 0 auto;
  height: 34%;
  background: linear-gradient(180deg, #392416, var(--soot));
  border: 1px solid rgba(185,154,84,0.42);
  transform: translateY(0);
  transition: transform 1s cubic-bezier(.2,.8,.2,1);
  z-index: 3;
}
.receipt-drawer.is-visible .drawer-face { transform: translateY(-38%); }
.brass-pull { position: absolute; left: 50%; top: 50%; width: 7rem; height: 1.5rem; transform: translate(-50%,-50%); border: 3px solid var(--gold); border-radius: 50%; }
.drawer-code { position: absolute; left: 2rem; bottom: 1.2rem; font-family: var(--display); color: rgba(233,217,184,0.55); font-size: 2rem; }
.drawer-interior { position: absolute; left: 8%; right: 8%; top: 26%; min-height: 52%; z-index: 1; }
.stamp { display: inline-block; font-family: var(--mono); color: var(--cord); border: 3px solid var(--cord); padding: 0.25rem 0.5rem; transform: rotate(-8deg); opacity: 0.8; }
.hanging-tag { position: absolute; top: 18vh; font-family: var(--tag); color: var(--soot); background: var(--washi); padding: 1rem; box-shadow: 0 12px 30px rgba(0,0,0,0.4); transform-origin: top center; animation: tagSway 5s ease-in-out infinite; }
.hanging-tag::before { content: ""; position: absolute; left: 50%; bottom: 100%; width: 2px; height: 18vh; background: var(--cord); }
.tag-one { right: 13vw; } .tag-two { left: 11vw; top: 62vh; animation-delay: -2s; }

.shelved-room { background: linear-gradient(115deg, #0b0705, var(--soot) 38%, var(--indigo)); }
.shelf-wall { display: grid; grid-template-columns: 1.2fr 0.8fr 0.28fr; grid-auto-rows: minmax(8rem, 18vh); gap: 1.1rem; width: min(88rem, 88vw); margin: 6vh auto; }
.shelf-slot { position: relative; padding: 1.2rem; background: rgba(233,217,184,0.9); color: var(--soot); border: 12px solid rgba(23,17,13,0.92); box-shadow: inset 0 0 28px rgba(111,84,59,0.24); font-family: var(--tag); }
.shelf-slot.wide { grid-column: span 2; }
.shelf-slot.note-slot { font-family: var(--poem); font-size: clamp(1.2rem, 2vw, 2rem); }
.dark-gap { background: #050302; border-color: rgba(111,84,59,0.32); }
.dark-gap.narrow { grid-row: span 2; }
.wrapped-box { display: grid; place-items: center; }
.cord-loop { position: absolute; inset: 20% 44%; border: 3px solid var(--cord); border-radius: 48%; }
.vertical-whisper { position: absolute; right: 9vw; bottom: 9vh; writing-mode: vertical-rl; font-family: var(--display); color: rgba(244,237,224,0.23); font-size: clamp(3rem, 8vw, 8rem); }

.prop-rafters { background: radial-gradient(circle at 48% 0%, rgba(185,154,84,0.16), transparent 24rem), linear-gradient(180deg, #050302, var(--soot)); }
.rafter-lines { position: absolute; inset: 0; background: repeating-linear-gradient(164deg, transparent 0 7rem, rgba(111,84,59,0.5) 7.1rem 7.6rem); }
.prop-silhouette { position: absolute; background: rgba(0,0,0,0.62); filter: blur(0.2px); }
.mask-one { left: 15vw; top: 14vh; width: 15rem; height: 10rem; border-radius: 50% 50% 20% 20%; transform: rotate(-9deg); }
.mask-two { right: 20vw; top: 18vh; width: 9rem; height: 22rem; clip-path: polygon(45% 0, 70% 20%, 58% 100%, 30% 100%, 20% 22%); }
.lamp { left: 52vw; top: 8vh; width: 11rem; height: 11rem; border-radius: 50%; box-shadow: 0 0 90px rgba(185,154,84,0.15); }
.rafter-note { position: relative; width: min(36rem, 82vw); margin: 44vh 0 0 10vw; }

.string-ledger { background: linear-gradient(135deg, var(--indigo), var(--soot) 54%, #080504); }
.ledger-path { position: absolute; inset: 8vh 4vw; width: 92vw; height: 76vh; overflow: visible; }
.ledger-path path { fill: none; stroke: var(--cord); stroke-width: 8; stroke-linecap: round; stroke-dasharray: 1800; stroke-dashoffset: var(--path-offset, 1800); filter: drop-shadow(0 8px 8px rgba(0,0,0,0.6)); transition: stroke-dashoffset 1.6s ease; }
.string-ledger.is-visible .ledger-path path { --path-offset: 0; }
.ledger-sheet { position: relative; width: min(38rem, 84vw); margin: 16vh auto 0; z-index: 2; transform: rotate(1deg); }
.seal { float: right; border-radius: 50%; width: 5.5rem; height: 5.5rem; display: grid; place-items: center; font-size: 0.7rem; background: rgba(200,59,34,0.12); }
.ledger-sheet.unsealed .seal { transform: rotate(18deg) translate(8px, 12px); opacity: 0.45; }
.ledger-label { position: absolute; font-family: var(--tag); color: var(--soot); background: var(--washi); padding: 0.8rem 1rem; box-shadow: 0 12px 28px rgba(0,0,0,0.45); }
.label-a { left: 12vw; top: 22vh; transform: rotate(-4deg); }
.label-b { right: 14vw; top: 35vh; writing-mode: vertical-rl; }
.label-c { left: 18vw; bottom: 18vh; transform: rotate(3deg); }

.reopening-dust { background: radial-gradient(circle at 50% 42%, rgba(244,237,224,0.2), transparent 20rem), linear-gradient(180deg, var(--soot), #040302); display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 4vw; }
.empty-shelf { position: relative; height: 44vh; border-top: 18px solid rgba(111,84,59,0.8); border-bottom: 22px solid rgba(111,84,59,0.58); box-shadow: inset 0 -40px 60px rgba(0,0,0,0.55); }
.loose-string { position: absolute; left: 12%; right: 18%; top: 48%; height: 5px; background: var(--cord); transform: rotate(-3deg); border-radius: 999px; }
.loose-string::after { content: ""; position: absolute; right: -2rem; top: -0.8rem; width: 3rem; height: 2rem; border: 4px solid var(--cord); border-left: 0; border-radius: 50%; }
.wax-fragment { position: absolute; width: 2.2rem; height: 1.7rem; background: var(--cord); border-radius: 45% 55% 40% 60%; opacity: 0.8; }
.wax-fragment.one { left: 32%; bottom: 18%; } .wax-fragment.two { right: 25%; bottom: 24%; transform: rotate(28deg); }
.final-note { max-width: 35rem; transform: rotate(-1deg); }

.drawer-nav { position: fixed; left: 1rem; top: 50%; transform: translateY(-50%); z-index: 10; display: grid; gap: 0.45rem; }
.drawer-nav a { font-family: var(--tag); color: var(--washi); background: rgba(23,17,13,0.76); border-left: 3px solid var(--tea); padding: 0.45rem 0.65rem; text-decoration: none; transition: border-color 0.3s ease, transform 0.3s ease; }
.drawer-nav a.is-active { border-color: var(--cord); transform: translateX(0.35rem); color: var(--moth); }

.is-visible .paper-note, .is-visible .paper-panel { animation: liftTrace 1.1s ease both; }

@keyframes tagSway { 0%,100% { transform: rotate(-1deg); } 50% { transform: rotate(2deg); } }
@keyframes liftTrace { from { opacity: 0.35; clip-path: inset(0 0 78% 0); } to { opacity: 1; clip-path: inset(0); } }

@media (max-width: 760px) {
  .chamber { padding: 4rem 1.2rem; }
  .drawer-nav { display: none; }
  .noren { inset: 0 5vw; }
  .wordmark-wrap h1 { font-size: 4.2rem; }
  .gate-label, .pull-tab { left: 1.2rem; right: auto; }
  .shelf-wall { grid-template-columns: 1fr; width: 100%; }
  .shelf-slot.wide, .dark-gap.narrow { grid-column: auto; grid-row: auto; }
  .reopening-dust { grid-template-columns: 1fr; }
  .ledger-label { display: none; }
}