:root {
  --archive: #101014;
  --ink-blue: #18243A;
  --vellum: #E7D8B6;
  --brass: #B88A44;
  --evidence: #C83E4D;
  --teal: #4FB7A5;
  --lilac: #A79BE8;
  --fraunces: "Fraunces", serif;
  --source: "Source Sans 3", sans-serif;
  --mono: "JetBrains Mono", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--vellum);
  background:
    radial-gradient(circle at 48% 24%, rgba(231, 216, 182, .14), transparent 30rem),
    radial-gradient(circle at 82% 68%, rgba(79, 183, 165, .07), transparent 26rem),
    linear-gradient(135deg, var(--archive), #08080b 58%, #12121a);
  font-family: var(--source);
  overflow-x: hidden;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 40;
  opacity: .22;
  background-image:
    repeating-radial-gradient(circle at 17% 31%, rgba(231, 216, 182, .18) 0 1px, transparent 1px 5px),
    repeating-linear-gradient(92deg, rgba(255,255,255,.025) 0 1px, transparent 1px 4px);
  mix-blend-mode: overlay;
}

.lamp-reveal {
  position: fixed;
  width: 34rem;
  height: 34rem;
  left: var(--lamp-x, 50%);
  top: var(--lamp-y, 32%);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 2;
  background: radial-gradient(circle, rgba(231, 216, 182, .23), rgba(184, 138, 68, .08) 36%, transparent 70%);
  filter: blur(8px);
  transition: width .6s ease, height .6s ease;
}

.chapter-rail {
  position: fixed;
  right: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.chapter-tab {
  border: 1px solid rgba(184, 138, 68, .55);
  background: rgba(24, 36, 58, .72);
  color: var(--vellum);
  font: 600 .68rem var(--mono);
  letter-spacing: .04em;
  padding: .55rem .7rem;
  text-transform: uppercase;
  box-shadow: -6px 7px 18px rgba(0,0,0,.3);
  cursor: pointer;
}

.chapter-tab.active { background: var(--brass); color: var(--archive); transform: translateX(-.35rem); }

.study-room {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(18rem, 34vw) 1fr;
  align-items: center;
  gap: 3vw;
  padding: 5rem clamp(1.2rem, 6vw, 6rem);
  isolation: isolate;
}

.study-room::before {
  content: "";
  position: absolute;
  inset: 6vh 5vw;
  border: 1px solid rgba(184, 138, 68, .18);
  background: linear-gradient(115deg, rgba(24, 36, 58, .24), transparent 58%);
  transform: rotate(-1deg);
  z-index: -1;
}

h1, h2, h3, .plate-caption { font-family: var(--fraunces); }
h1 { font-size: clamp(4.5rem, 12vw, 11rem); line-height: .82; margin: .1em 0; font-variation-settings: "SOFT" 60, "WONK" 1; }
h2 { font-size: clamp(3rem, 7vw, 7rem); line-height: .85; margin: 0; }
h3 { font-size: clamp(1.4rem, 2.1vw, 2.2rem); margin: .2rem 0 .6rem; }
code { font-family: var(--mono); color: var(--teal); font-size: .82rem; }

.eyebrow { font: 700 .75rem var(--mono); color: var(--lilac); letter-spacing: .11em; text-transform: uppercase; }
.vellum-note {
  max-width: 26rem;
  color: #2b2419;
  background: linear-gradient(100deg, rgba(231,216,182,.95), rgba(231,216,182,.76));
  padding: 1rem 1.1rem;
  border: 1px solid rgba(184, 138, 68, .6);
  box-shadow: 0 18px 35px rgba(0,0,0,.32), inset 0 0 28px rgba(184, 138, 68, .16);
}

.stamp-mark, .understood-stamp {
  display: inline-block;
  color: var(--evidence);
  border: 2px solid currentColor;
  font: 700 .78rem var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .32rem .55rem;
  transform: rotate(-8deg);
  border-radius: .12rem;
}

.study-action {
  border: 1px solid var(--brass);
  background: rgba(231,216,182,.12);
  color: var(--vellum);
  font: 700 .82rem var(--mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: .85rem 1rem;
  cursor: pointer;
  box-shadow: 0 0 22px rgba(184,138,68,.18);
}

.exam-table {
  position: relative;
  min-height: 38rem;
  border-radius: 50% 48% 44% 45%;
  background: radial-gradient(ellipse at center, rgba(184,138,68,.22), rgba(24,36,58,.15) 48%, transparent 70%);
}

.table-glow {
  position: absolute;
  inset: 11% 4% 3%;
  background: radial-gradient(ellipse, rgba(231,216,182,.52), rgba(184,138,68,.14) 40%, transparent 70%);
  filter: blur(10px);
}

.lamp-head {
  position: absolute;
  top: 1rem;
  left: 42%;
  width: 10rem;
  height: 4rem;
  background: linear-gradient(var(--brass), #4d3518);
  border-radius: 9rem 9rem .6rem .6rem;
  box-shadow: 0 2rem 8rem rgba(231,216,182,.22);
}

.sealed-package {
  position: absolute;
  left: 38%;
  top: 45%;
  width: 18rem;
  height: 12rem;
  transform: translate(-50%, -50%) rotate(-6deg);
  transition: transform .9s cubic-bezier(.2,.8,.15,1), opacity .8s ease;
  transform-style: preserve-3d;
}

.package-lid, .package-face {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(184,138,68,.72);
  background: linear-gradient(140deg, #594026, #2b2117);
  box-shadow: 0 24px 45px rgba(0,0,0,.55);
}

.package-lid { height: 5rem; transform: skewX(-25deg) translate(2rem, -3.7rem); color: var(--brass); font: 700 .8rem var(--mono); padding: 1rem; text-transform: uppercase; }
.package-face { display: flex; flex-direction: column; justify-content: center; padding: 1.4rem; gap: .55rem; }
.package-face strong { font-family: var(--fraunces); font-size: 2.2rem; }
.package-face span { font-family: var(--mono); color: var(--teal); font-size: .78rem; }
.package-tape { position: absolute; inset: 0 45%; background: rgba(231,216,182,.18); transform: rotate(4deg); }

.exploded-stack { position: absolute; inset: 0; opacity: 0; transition: opacity .7s ease; }
.specimen-layer {
  position: absolute;
  left: 38%;
  top: 45%;
  width: min(30rem, 44vw);
  min-height: 7.8rem;
  padding: 1.1rem 1.2rem;
  border: 1px solid rgba(184,138,68,.62);
  background: rgba(231,216,182,.87);
  color: #2a2117;
  transform: translate(-50%, -50%) rotate(var(--r, -3deg));
  box-shadow: 0 20px 35px rgba(0,0,0,.36);
  transition: transform .8s cubic-bezier(.2,.8,.15,1), box-shadow .35s ease;
}
.specimen-layer b { display: block; font-family: var(--fraunces); font-size: 1.6rem; margin-bottom: .4rem; }
.specimen-layer:hover, .specimen-layer.lifted { transform: translate(-50%, calc(-50% - 1.2rem)) rotate(var(--r, -3deg)) scale(1.03); box-shadow: 0 30px 50px rgba(79,183,165,.22); }
.provenance-layer { --r: 4deg; background: rgba(24,36,58,.72); color: var(--vellum); border-color: rgba(79,183,165,.68); backdrop-filter: blur(2px); }
.license-layer { --r: -8deg; }
.vuln-layer { --r: 7deg; }
.release-layer { --r: -1deg; }
.opened .sealed-package { transform: translate(-130%, -20%) rotate(-24deg) scale(.72); opacity: .28; }
.opened .exploded-stack { opacity: 1; }
.opened .component-layer { transform: translate(-80%, -140%) rotate(-9deg); }
.opened .provenance-layer { transform: translate(-20%, -92%) rotate(5deg); }
.opened .license-layer { transform: translate(-82%, 0%) rotate(-6deg); }
.opened .vuln-layer { transform: translate(-7%, 4%) rotate(7deg); }
.opened .release-layer { transform: translate(-48%, 96%) rotate(-2deg); }

.evidence-tag {
  display: inline-block;
  margin-top: .65rem;
  padding: .25rem .55rem;
  border: 1px solid var(--evidence);
  color: var(--evidence);
  font: 700 .66rem var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.evidence-tag.teal { color: var(--teal); border-color: var(--teal); }
.evidence-tag.brass { color: var(--brass); border-color: var(--brass); }
.evidence-tag.red { color: var(--evidence); border-color: var(--evidence); }
.evidence-tag.lilac { color: var(--lilac); border-color: var(--lilac); }
.evidence-tag.large { background: rgba(24,36,58,.84); }

.plate-caption { align-self: start; padding-top: 10vh; }
.plate-caption span { font: 700 .78rem var(--mono); color: var(--brass); text-transform: uppercase; letter-spacing: .16em; }
.specimen-board, .margin-spread, .microscope-slide, .dossier {
  position: relative;
  border: 1px solid rgba(184,138,68,.45);
  background: rgba(16,16,20,.42);
  box-shadow: inset 0 0 75px rgba(24,36,58,.65), 0 30px 70px rgba(0,0,0,.35);
}

.ledger-board { min-height: 34rem; padding: 2rem; transform: rotate(-1deg); }
.library-card { width: 21rem; padding: 1.4rem; background: var(--vellum); color: #21180f; border: 1px solid var(--brass); box-shadow: 12px 18px 35px rgba(0,0,0,.35); }
.drawer-handle { display: block; width: 5rem; height: .5rem; background: var(--brass); border-radius: 1rem; margin-bottom: 1rem; }
.dependency-mobile { position: absolute; right: 8%; top: 14%; width: 52%; height: 70%; border-top: 1px solid rgba(184,138,68,.55); }
.dependency-mobile::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, transparent 49%, rgba(184,138,68,.45) 50%, transparent 51%); }
.component-node {
  position: absolute;
  width: 8.2rem;
  height: 8.2rem;
  border-radius: 50%;
  border: 1px solid var(--brass);
  background: rgba(231,216,182,.92);
  color: #21180f;
  font: 700 .78rem var(--mono);
  cursor: pointer;
  box-shadow: 0 20px 32px rgba(0,0,0,.36);
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.component-node small { display: block; color: var(--evidence); margin-top: .25rem; }
.component-node:nth-child(1) { left: 4%; top: 18%; }
.component-node:nth-child(2) { left: 36%; top: 3%; }
.component-node:nth-child(3) { left: 58%; top: 46%; }
.component-node:nth-child(4) { left: 18%; top: 57%; }
.component-node.active, .component-node:hover { transform: translateY(-.8rem) scale(1.05); border-color: var(--teal); box-shadow: 0 0 32px rgba(79,183,165,.32); }
.purl-slip { position: absolute; left: 13%; bottom: 12%; background: var(--ink-blue); color: var(--teal); border-left: 5px solid var(--teal); padding: .8rem 1rem; font-family: var(--mono); transform: rotate(3deg); }
.curator-note { position: absolute; left: 8vw; bottom: 8vh; }

.provenance-room, .vulnerability-room { grid-template-columns: 28vw 1fr; }
.thread-map { width: 100%; max-height: 72vh; overflow: visible; filter: drop-shadow(0 0 16px rgba(0,0,0,.45)); }
.dependency-thread { fill: none; stroke-width: 4; stroke-dasharray: 1200; stroke-dashoffset: var(--dash, 1200); transition: stroke-dashoffset 1.5s ease; }
.in-view .dependency-thread { stroke-dashoffset: 0; }
.red-string { stroke: var(--evidence); }
.teal-thread { stroke: var(--teal); stroke-width: 3; filter: drop-shadow(0 0 8px rgba(79,183,165,.45)); }
.pinset circle { fill: var(--brass); stroke: var(--vellum); stroke-width: 3; transform-origin: center; opacity: .4; }
.in-view .pinset circle { animation: pinDrop .65s ease forwards; }
.pinset circle:nth-child(2) { animation-delay: .2s; } .pinset circle:nth-child(3) { animation-delay: .35s; } .pinset circle:nth-child(4) { animation-delay: .5s; } .pinset circle:nth-child(5) { animation-delay: .65s; }
.map-notes { position: absolute; right: 11vw; bottom: 14vh; display: grid; gap: .85rem; }

.margin-spread { min-height: 36rem; padding: 4rem; display: grid; grid-template-columns: 1fr 18rem; gap: 2rem; transform: rotate(1deg); }
.open-folio { background: var(--vellum); color: #251b12; padding: 3rem; border: 1px solid var(--brass); box-shadow: inset 50px 0 60px rgba(184,138,68,.18); }
.footnote-ribbons { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.footnote-ribbons li { background: linear-gradient(90deg, var(--brass), rgba(184,138,68,.45)); color: var(--archive); padding: .8rem 1rem; font: 700 .82rem var(--mono); transform: translateX(var(--x, 0)) rotate(var(--r, -2deg)); }
.footnote-ribbons li:nth-child(2) { --x: -1.3rem; --r: 2deg; } .footnote-ribbons li:nth-child(3) { --x: .8rem; --r: -4deg; } .footnote-ribbons li:nth-child(4) { --x: -2rem; --r: 1deg; }

.microscope-slide { min-height: 36rem; border-radius: 2rem; background: radial-gradient(circle at 50% 48%, rgba(167,155,232,.12), rgba(24,36,58,.72) 48%, rgba(16,16,20,.85)); }
.reticle { position: absolute; inset: 12%; border: 1px solid rgba(231,216,182,.35); border-radius: 50%; }
.reticle::before, .reticle::after { content: ""; position: absolute; background: rgba(231,216,182,.28); }
.reticle::before { left: 50%; top: -10%; bottom: -10%; width: 1px; } .reticle::after { top: 50%; left: -10%; right: -10%; height: 1px; }
.spore { position: absolute; width: 1.2rem; height: 1.2rem; border: 0; border-radius: 50%; background: var(--evidence); box-shadow: 0 0 18px var(--evidence), 0 0 42px rgba(200,62,77,.45); cursor: pointer; animation: sporePulse 2.8s ease-in-out infinite; }
.spore-a { left: 42%; top: 42%; } .spore-b { left: 63%; top: 29%; animation-delay: .5s; } .spore-c { left: 55%; top: 63%; animation-delay: 1s; }
.spore-label { position: absolute; left: 7%; bottom: 8%; max-width: 28rem; background: rgba(231,216,182,.9); color: #251b12; padding: 1rem; border-left: 5px solid var(--evidence); font-family: var(--mono); }
.patch-needle { position: absolute; right: 8vw; bottom: 12vh; color: var(--lilac); font: 700 .8rem var(--mono); text-transform: uppercase; }
.patch-needle span { display: inline-block; width: 9rem; height: 2px; background: var(--lilac); transform: rotate(-18deg); box-shadow: 0 0 15px var(--lilac); }

.release-room { grid-template-columns: 31vw 1fr; }
.dossier { width: min(44rem, 72vw); min-height: 34rem; padding: 4.2rem 3rem 2rem; background: linear-gradient(105deg, rgba(231,216,182,.95), rgba(231,216,182,.82)); color: #251b12; transform: rotate(-1.2deg); }
.brass-clip { position: absolute; top: -1rem; left: 50%; width: 8rem; height: 2.4rem; transform: translateX(-50%); background: linear-gradient(var(--brass), #6d4a20); border-radius: 0 0 2rem 2rem; }
.dossier ul { margin: 2rem 0; padding-left: 1.2rem; font-size: 1.08rem; line-height: 1.75; }
.understood-stamp { font-size: 1.5rem; transform: rotate(-11deg); margin-top: 2rem; }
.compare-action { position: absolute; right: 14vw; bottom: 11vh; }
.release-room.compared .dossier { box-shadow: 0 0 0 2px var(--teal), 0 0 55px rgba(79,183,165,.25); }

@keyframes pinDrop { from { opacity: 0; transform: scale(2.1); } to { opacity: 1; transform: scale(1); } }
@keyframes sporePulse { 0%, 100% { transform: scale(.9); } 50% { transform: scale(1.45); } }

@media (max-width: 850px) {
  .study-room { grid-template-columns: 1fr; padding-right: 4.5rem; }
  .chapter-rail { right: .35rem; }
  .chapter-tab { writing-mode: vertical-rl; padding: .5rem .35rem; }
  .specimen-layer { width: 78vw; }
  .margin-spread { grid-template-columns: 1fr; padding: 1.3rem; }
  .dependency-mobile { position: relative; inset: auto; width: 100%; height: 26rem; margin-top: 2rem; }
  .dossier { width: 100%; }
}