:root {
  /* Typography audit phrases: IBM Plex Mono for marginal rule numbers; Space Grotesk* Grotesk** for interface labels. */
  --archive-black: #08070B;
  --ink-violet: #181225;
  --vellum: #E9DFC8;
  --brass: #B89B5E;
  --acid: #B6FF3B;
  --burgundy: #6D1E35;
  --blueprint: #283C63;
  --paper-gray: #9A9385;
  --display: "Fraunces", "Cormorant Garamond", serif;
  --ui: "Space Grotesk", "Inter", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --accent: "Cormorant Garamond", serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: radial-gradient(circle at 48% 26%, rgba(40, 60, 99, .34), transparent 34vw), linear-gradient(140deg, var(--archive-black), var(--ink-violet) 58%, #08070B);
  color: var(--vellum);
  font-family: var(--ui);
  overflow-x: hidden;
}

body.archive-open .title-hole,
body.archive-open .hero-glyph { transform: scale(1.75) rotate(24deg); }

body.reversed .exit-document { transform: rotateY(180deg) rotate(-3deg); }
body.reversed .reversed-clause { opacity: 1; transform: translate(-50%, -50%) rotate(0deg) scale(1); }
body.reversed .final-portal { box-shadow: 0 0 0 38px rgba(182, 255, 59, .08), 0 0 80px rgba(182, 255, 59, .55), inset 0 0 55px var(--archive-black); }

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: .18;
  background-image: repeating-linear-gradient(0deg, rgba(233, 223, 200, .07) 0 1px, transparent 1px 3px), repeating-linear-gradient(90deg, rgba(184, 155, 94, .05) 0 1px, transparent 1px 5px);
  mix-blend-mode: overlay;
}

.cursor-lantern {
  position: fixed;
  left: 50%;
  top: 50%;
  width: 24px;
  height: 24px;
  margin: -12px 0 0 -12px;
  border: 1px solid var(--acid);
  border-radius: 50%;
  z-index: 60;
  pointer-events: none;
  opacity: .75;
  box-shadow: 0 0 24px rgba(182, 255, 59, .55), inset 0 0 12px rgba(182, 255, 59, .32);
  transition: transform .18s ease, opacity .25s ease;
}

.scroll-gauge {
  position: fixed;
  left: 22px;
  top: 22px;
  bottom: 22px;
  width: 3px;
  z-index: 40;
  background: rgba(184, 155, 94, .22);
}

.scroll-gauge span {
  display: block;
  height: 0;
  background: linear-gradient(var(--brass), var(--acid));
  box-shadow: 0 0 18px rgba(182, 255, 59, .4);
}

.index-slips {
  position: fixed;
  right: 0;
  top: 13vh;
  z-index: 42;
  display: grid;
  gap: 10px;
}

.index-slips a {
  color: var(--ink-violet);
  text-decoration: none;
  font: 600 11px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: .08em;
  background: var(--vellum);
  border: 1px solid var(--brass);
  border-right: 0;
  padding: 12px 16px 12px 20px;
  transform: rotate(-2deg) translateX(8px);
  box-shadow: -8px 8px 18px rgba(0,0,0,.35);
}

.index-slips a:nth-child(2n) { transform: rotate(2deg) translateX(16px); background: #9A9385; }
.index-slips a:hover { transform: translateX(0) rotate(0deg); color: var(--burgundy); }

.chamber {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  padding: 9vh 8vw;
  isolation: isolate;
}

.chamber::before {
  content: attr(data-chapter);
  position: absolute;
  left: 6vw;
  top: 8vh;
  color: rgba(184, 155, 94, .55);
  font: 600 13px/1 var(--mono);
  border-top: 1px solid var(--brass);
  padding-top: 8px;
}

.clause-wall { background: radial-gradient(circle at 58% 42%, rgba(109, 30, 53, .36), transparent 33vw); }
.negative-stair { background: linear-gradient(160deg, #08070B, #181225 42%, #283C63 120%); }
.exception-well { background: radial-gradient(circle at center, rgba(109, 30, 53, .4), transparent 28vw), #08070B; }
.backdoor-gallery { background: linear-gradient(105deg, #181225, #08070B 62%); }
.exit-there { background: radial-gradient(circle at 72% 47%, rgba(182, 255, 59, .16), transparent 26vw), #08070B; }

.deep-room {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 52% 44%, rgba(182, 255, 59, .28), transparent 13vw), linear-gradient(135deg, #283C63, #181225 52%, #08070B);
  opacity: .75;
}

.impossible-mini-stairs {
  position: absolute;
  width: 310px;
  height: 260px;
  left: 52%;
  top: 36%;
  transform: rotate(-31deg) skewY(-18deg);
}

.impossible-mini-stairs span {
  position: absolute;
  width: 210px;
  height: 34px;
  border: 1px solid rgba(184,155,94,.85);
  background: rgba(8,7,11,.45);
  box-shadow: 12px 16px 0 rgba(0,0,0,.22);
}
.impossible-mini-stairs span:nth-child(1){top:0;left:0}.impossible-mini-stairs span:nth-child(2){top:44px;left:42px}.impossible-mini-stairs span:nth-child(3){top:88px;left:84px}.impossible-mini-stairs span:nth-child(4){top:132px;left:42px}.impossible-mini-stairs span:nth-child(5){top:176px;left:0}

.vellum-document,
.paper-fragment,
.gallery-panel,
.exit-document {
  background: linear-gradient(145deg, rgba(233, 223, 200, .98), rgba(154, 147, 133, .92));
  color: var(--ink-violet);
  border: 1px solid rgba(184, 155, 94, .75);
  box-shadow: 0 36px 80px rgba(0,0,0,.46), inset 0 0 45px rgba(109, 30, 53, .08);
}

.hero-document {
  width: min(76vw, 1040px);
  min-height: 72vh;
  padding: 7vh 6vw;
  transform: rotate(-4deg);
  position: relative;
  clip-path: polygon(0 4%, 91% 0, 100% 86%, 74% 100%, 3% 95%);
}

.legal-ruling {
  position: absolute;
  inset: 24px;
  background: repeating-linear-gradient(to bottom, transparent 0 34px, rgba(24, 18, 37, .11) 35px 36px);
  pointer-events: none;
}

.archive-label,
.marginalia,
.code-margin,
.tab {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .12em;
}

.archive-label { color: var(--burgundy); font-size: 12px; margin: 0 0 2rem; }

.hero-title {
  font-family: var(--display);
  font-size: clamp(4.7rem, 15vw, 15rem);
  line-height: .76;
  margin: 0;
  letter-spacing: -.08em;
  font-weight: 900;
  color: var(--ink-violet);
  position: relative;
}

.title-hole {
  display: inline-grid;
  place-items: center;
  width: .78em;
  height: .78em;
  margin: 0 -.08em;
  color: transparent;
  border-radius: 50%;
  background: radial-gradient(circle, transparent 42%, rgba(182,255,59,.74) 43% 48%, #08070B 50% 70%, #B89B5E 71% 74%, transparent 75%), radial-gradient(circle at center, #283C63, #08070B 68%);
  box-shadow: 0 0 38px rgba(182,255,59,.74), inset 0 0 34px #08070B;
  vertical-align: -.04em;
  transition: transform 1s cubic-bezier(.2,.8,.08,1.02), box-shadow .6s ease;
}

.clause-copy {
  max-width: 550px;
  font-size: clamp(1.1rem, 2vw, 1.6rem);
  line-height: 1.35;
  margin: 4vh 0 0 8vw;
}

.stamp-tab,
.brass-handle {
  border: 1px solid var(--brass);
  color: var(--vellum);
  background: linear-gradient(135deg, var(--burgundy), #181225);
  padding: 14px 18px;
  font: 700 12px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: .1em;
  box-shadow: 8px 9px 0 rgba(24,18,37,.18);
  cursor: pointer;
}

.stamp-tab { position: absolute; right: 7vw; bottom: 7vh; transform: rotate(3deg); }
.stamp-tab:hover, .brass-handle:hover { color: var(--acid); box-shadow: 0 0 24px rgba(182,255,59,.24); }

.wax-ring {
  position: absolute;
  right: 12vw;
  top: 12vh;
  width: 116px;
  height: 116px;
  border-radius: 50%;
  background: radial-gradient(circle, transparent 34%, var(--burgundy) 35% 54%, transparent 55%);
  opacity: .9;
}

.redaction { position: absolute; height: 23px; background: #08070B; opacity: .85; transform: rotate(-2deg); }
.r1 { left: 8vw; bottom: 15vh; width: 360px; }
.r2 { right: 8vw; top: 28vh; width: 240px; }

.hero-note { position: absolute; left: 9vw; bottom: 11vh; max-width: 260px; color: var(--brass); transform: rotate(-8deg); }
.aperture-glyph, .ring-spin {
  border: 2px solid var(--brass);
  border-right-color: transparent;
  border-radius: 50%;
  box-shadow: 0 0 24px rgba(184,155,94,.35);
}
.hero-glyph { position: absolute; right: 12vw; bottom: 12vh; width: 150px; height: 150px; transition: transform 1.2s ease; animation: slowSpin 18s linear infinite; }

.aperture-window {
  position: absolute;
  width: clamp(220px, 28vw, 430px);
  height: clamp(220px, 28vw, 430px);
  border-radius: 50%;
  left: 10vw;
  top: 16vh;
  background: radial-gradient(circle, #08070B 38%, rgba(182,255,59,.2) 39% 43%, transparent 44%);
  box-shadow: inset 0 0 80px #08070B, 0 0 0 18px rgba(184,155,94,.12);
}
.ring-spin { position: absolute; inset: -13px; animation: slowSpin 12s linear infinite reverse; }

.stair-diagram { position: absolute; width: 52vw; height: 64vh; right: 8vw; top: 15vh; transform: rotate(9deg); }
.stair-step { position: absolute; width: 35vw; height: 44px; border: 1px solid var(--brass); background: linear-gradient(90deg, rgba(233,223,200,.08), rgba(40,60,99,.42)); box-shadow: 22px 27px 0 rgba(0,0,0,.22); }
.s1{top:4%;left:8%}.s2{top:16%;left:18%}.s3{top:28%;left:28%}.s4{top:40%;left:18%}.s5{top:52%;left:8%}.s6{top:64%;left:18%}

.stair-copy { width: min(420px, 36vw); padding: 36px; position: absolute; left: 20vw; bottom: 10vh; transform: rotate(4deg); }
h2 { font-family: var(--display); font-size: clamp(2.7rem, 6vw, 7rem); line-height: .86; margin: 0 0 22px; letter-spacing: -.05em; }
.paper-fragment p:not(.archive-label), .gallery-panel p, .exit-document p { font-size: 1.08rem; line-height: 1.55; }

.annotation-line, .gallery-thread { position: absolute; inset: 10vh 6vw; width: 88vw; height: 80vh; pointer-events: none; }
.annotation-line path, .gallery-thread path { fill: none; stroke: var(--brass); stroke-width: 2; stroke-dasharray: 1000; stroke-dashoffset: calc(1000 - (var(--progress, 0) * 1000)); filter: drop-shadow(0 0 7px rgba(184,155,94,.45)); }
.code-margin { position: absolute; right: 7vw; bottom: 13vh; color: var(--acid); writing-mode: vertical-rl; font-size: 12px; }

.well-core { width: min(52vw, 620px); aspect-ratio: 1; position: relative; display: grid; place-items: center; transform: rotate(calc(var(--progress, 0) * 80deg)); }
.well-ring { position: absolute; border-radius: 50%; border: 1px solid var(--brass); border-left-color: transparent; box-shadow: inset 0 0 42px rgba(0,0,0,.4), 0 0 28px rgba(184,155,94,.22); }
.ring-a { inset: 4%; animation: slowSpin 24s linear infinite; }
.ring-b { inset: 18%; animation: slowSpin 16s linear infinite reverse; border-color: var(--burgundy); border-top-color: transparent; }
.ring-c { inset: 31%; animation: slowSpin 10s linear infinite; border-color: var(--acid); border-bottom-color: transparent; }
.well-hole { width: 28%; aspect-ratio:1; border-radius: 50%; display:grid; place-items:center; background:#08070B; color:var(--acid); font: 900 7vw/1 var(--display); box-shadow: 0 0 58px rgba(182,255,59,.48); }
.well-brief { position: absolute; left: 8vw; top: 14vh; width: min(480px, 38vw); }
.quote { font-family: var(--accent); font-style: italic; font-size: clamp(1.55rem, 2.8vw, 3rem) !important; color: var(--vellum); }
.escape-route { position: absolute; right: 13vw; bottom: 12vh; width: 300px; height: 180px; }
.escape-route i { position: absolute; width: 9px; height: 9px; background: var(--acid); border-radius: 50%; opacity: calc(.25 + var(--progress, 0) * .75); box-shadow: 0 0 15px var(--acid); }
.escape-route i:nth-child(1){left:0;bottom:0}.escape-route i:nth-child(2){left:38px;bottom:30px}.escape-route i:nth-child(3){left:80px;bottom:54px}.escape-route i:nth-child(4){left:122px;bottom:90px}.escape-route i:nth-child(5){left:168px;bottom:118px}.escape-route i:nth-child(6){left:214px;bottom:102px}.escape-route i:nth-child(7){left:252px;bottom:64px}.escape-route i:nth-child(8){left:292px;bottom:22px}
.folded-arrow { position:absolute; left:24vw; bottom:13vh; color:var(--brass); font: 8rem/1 var(--accent); transform: rotate(12deg); }

.gallery-panel { position: absolute; width: min(430px, 34vw); padding: 32px; clip-path: polygon(0 0, 100% 8%, 93% 100%, 8% 92%); }
.panel-one { left: 10vw; top: 15vh; transform: rotate(-6deg); }
.panel-two { right: 9vw; bottom: 11vh; transform: rotate(5deg); }
.tab { display:inline-block; background:var(--brass); color:var(--ink-violet); padding:8px 12px; margin-bottom:18px; font-size:11px; }
.bridge-redactions b { display:block; height:22px; margin:13px 0; background:#08070B; transform: translateX(calc(var(--progress, 0) * 70px)); box-shadow: 0 0 0 1px rgba(184,155,94,.45); }
.moth-orbit { height: 110px; position: relative; }
.moth-orbit span { position: absolute; color:var(--acid); text-shadow:0 0 18px var(--acid); animation: floatMoth 5s ease-in-out infinite; }
.moth-orbit span:nth-child(1){left:10%;top:40%}.moth-orbit span:nth-child(2){left:48%;top:12%;animation-delay:1s}.moth-orbit span:nth-child(3){left:78%;top:60%;animation-delay:2s}
.backdoor-aperture { width: min(38vw, 470px); aspect-ratio:1; border-radius:50%; background: radial-gradient(circle, transparent 35%, var(--brass) 36% 37%, rgba(109,30,53,.85) 38% 50%, transparent 51%), radial-gradient(circle at 35% 40%, var(--acid), #283C63 35%, #08070B 68%); box-shadow: inset 0 0 70px #08070B, 0 0 65px rgba(182,255,59,.24); transform: rotate(calc(var(--progress, 0) * -95deg)); }
.backdoor-aperture span { display:block; width:48%; height:10px; background:var(--archive-black); margin:50% auto; transform:rotate(25deg); }

.exit-document { position:absolute; left:9vw; width:min(520px, 42vw); padding:45px; transform: rotate(-3deg); transition: transform .9s cubic-bezier(.2,.8,.2,1); transform-style: preserve-3d; }
.final-portal { position:absolute; right:12vw; width:min(44vw, 540px); aspect-ratio:1; border-radius:50%; display:grid; place-items:center; background: radial-gradient(circle, #B6FF3B 0 2%, #08070B 3% 39%, #B89B5E 40% 42%, transparent 43%), radial-gradient(circle, #283C63, #08070B 68%); border:1px solid var(--brass); transition: box-shadow .8s ease; }
.final-portal span { font: 800 clamp(2rem,5vw,5.5rem)/.9 var(--display); color:var(--vellum); letter-spacing:-.06em; transform: rotate(8deg); }
.reversed-clause { position:absolute; left:50%; top:50%; opacity:0; transform:translate(-50%, -50%) rotate(18deg) scale(.8); color:var(--acid); font: 600 12px/1 var(--mono); letter-spacing:.16em; text-transform:uppercase; transition: .7s ease; }

@keyframes slowSpin { to { transform: rotate(360deg); } }
@keyframes floatMoth { 0%,100%{ transform: translate(0,0) rotate(0deg); opacity:.5 } 50%{ transform: translate(22px,-28px) rotate(35deg); opacity:1 } }

@media (max-width: 760px) {
  .index-slips { display: none; }
  .hero-document { width: 88vw; padding: 8vh 7vw; }
  .clause-copy { margin-left: 0; }
  .stamp-tab { position: relative; right: auto; bottom: auto; margin-top: 28px; }
  .stair-copy, .well-brief, .gallery-panel, .exit-document { position: relative; left: auto; right: auto; top: auto; bottom: auto; width: 86vw; margin: 0 auto; }
  .stair-diagram { width: 88vw; right: -12vw; opacity: .7; }
  .well-core, .backdoor-aperture, .final-portal { width: 82vw; }
  .panel-one, .panel-two { transform: rotate(0); margin: 3vh auto; }
  .final-portal { position: relative; right: auto; margin-top: 26vh; }
}