:root {
  /* Typography source: (Google Fonts) */
  --ink: #120D0A;
  --oxblood: #4A161E;
  --parchment: #E8D2A6;
  --brass: #C0903D;
  --sienna: #9B4B22;
  --carmine: #C9342E;
  --chalk: #B8ADA0;
  --display: "Cormorant Garamond", Georgia, serif;
  --impact: "Oswald", Impact, sans-serif;
  --body: "Spectral", Georgia, serif;
  --mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }

html { background: var(--ink); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--parchment);
  font-family: var(--body);
  background:
    radial-gradient(circle at 12% 82%, rgba(192, 144, 61, 0.28), transparent 34rem),
    radial-gradient(circle at 80% 12%, rgba(74, 22, 30, 0.72), transparent 35rem),
    linear-gradient(135deg, #120D0A 0%, #1b0f0d 48%, #120D0A 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  background:
    repeating-linear-gradient(90deg, rgba(232, 210, 166, 0.028) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(0deg, rgba(184, 173, 160, 0.018) 0 1px, transparent 1px 5px),
    radial-gradient(circle at 50% 50%, transparent 35%, rgba(18, 13, 10, 0.68) 100%);
  mix-blend-mode: screen;
}

.archive { position: relative; }
.panel { position: relative; min-height: 100vh; overflow: hidden; isolation: isolate; }

.hero {
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 22% 76%, rgba(192, 144, 61, 0.34), transparent 25rem),
    radial-gradient(circle at 72% 20%, rgba(74, 22, 30, 0.86), transparent 29rem),
    linear-gradient(115deg, #120D0A 0%, #20100f 55%, #120D0A 100%);
}

.shelf {
  position: absolute;
  inset: 5vh -8vw auto auto;
  width: 64vw;
  height: 74vh;
  opacity: 0.3;
  background: repeating-linear-gradient(90deg, transparent 0 34px, rgba(232, 210, 166, 0.13) 34px 36px, transparent 36px 66px), linear-gradient(90deg, transparent, rgba(74, 22, 30, 0.8));
  clip-path: polygon(16% 0, 100% 0, 84% 100%, 0 100%);
}

.chalk-map { position: absolute; inset: 8vh 8vw 12vh 34vw; opacity: 0.2; }
.chalk-map svg { width: 100%; height: 100%; }
.chalk-map path, .chalk-map circle { fill: none; stroke: var(--chalk); stroke-width: 1.4; stroke-dasharray: 8 12; }

.cover-grid {
  position: relative;
  width: min(92vw, 1480px);
  min-height: 84vh;
  display: grid;
  grid-template-columns: 74px 1.05fr 1.25fr 0.55fr;
  align-items: center;
  gap: clamp(1rem, 3vw, 3rem);
  border-left: 1px solid rgba(192, 144, 61, 0.55);
  border-bottom: 1px solid rgba(192, 144, 61, 0.45);
}

.vertical-label, .chapter-spine {
  font-family: var(--impact);
  color: var(--brass);
  letter-spacing: 0.16em;
  writing-mode: vertical-rl;
  text-transform: uppercase;
}

.vertical-label { align-self: stretch; padding: 2rem 0; text-align: center; border-right: 8px solid var(--oxblood); }

.hero-copy { z-index: 2; }
.mono-mark, .section-kicker {
  font-family: var(--mono);
  color: var(--brass);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1, h2 { font-family: var(--display); letter-spacing: -0.035em; line-height: 0.86; margin: 0; }
h1 { font-size: clamp(5.8rem, 16vw, 16rem); text-shadow: 0 0 32px rgba(192, 144, 61, 0.18); opacity: 0; transform: translateY(26px); animation: revealTitle 1.3s ease 1s forwards; }
h2 { font-size: clamp(3.6rem, 8vw, 8rem); color: var(--parchment); }

.subtitle { max-width: 560px; color: var(--chalk); font-size: clamp(1.2rem, 2vw, 1.75rem); line-height: 1.18; }
.narrow-column { align-self: end; margin-bottom: 12vh; color: var(--chalk); font-size: 1.05rem; line-height: 1.45; }
.brass-rule { display: block; width: 100%; height: 2px; margin-top: 1.5rem; background: linear-gradient(90deg, var(--brass), transparent); }

.sigil-wrap { grid-column: 3; grid-row: 1; width: min(38vw, 510px); justify-self: center; filter: drop-shadow(0 0 24px rgba(192, 144, 61, 0.3)); }
.undo-sigil, .small-sigil { width: 100%; overflow: visible; }
.draw-line, .small-sigil path { fill: none; stroke: var(--brass); stroke-width: 7; stroke-linejoin: miter; stroke-linecap: square; }
.draw-line { stroke-dasharray: 640; stroke-dashoffset: 640; animation: sigilDraw 1.65s cubic-bezier(.2,.7,.1,1) forwards; }
.draw-line.slow { animation-delay: .22s; } .draw-line.slower { animation-delay: .42s; } .draw-line.slowest { animation-delay: .62s; }

.paper {
  position: absolute;
  background: linear-gradient(135deg, rgba(232, 210, 166, 0.92), rgba(192, 144, 61, 0.28));
  color: var(--ink);
  font-family: var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  clip-path: polygon(8% 0, 100% 0, 88% 100%, 0 83%);
  box-shadow: 0 18px 40px rgba(0,0,0,.35);
  transition: transform .35s ease, filter .35s ease;
}
.paper.touched { filter: brightness(1.08); }
.shard-one { width: 240px; height: 70px; left: 9vw; top: 18vh; transform: rotate(-13deg); padding: 1.2rem; }
.shard-two { width: 260px; height: 84px; right: 9vw; bottom: 14vh; transform: rotate(9deg); padding: 1.5rem; }

.ledger {
  display: grid;
  grid-template-columns: 15vw minmax(320px, 650px) 1fr;
  align-items: center;
  gap: 3vw;
  padding: 8vh 7vw;
  background: linear-gradient(158deg, #120D0A 0%, #2b1115 52%, #120D0A 100%);
}
.chapter-spine { position: absolute; left: 3vw; top: 10vh; font-size: clamp(6rem, 13vw, 16rem); opacity: .22; }
.desk-glow { position: absolute; left: -10vw; bottom: -16vh; width: 70vw; height: 44vh; background: radial-gradient(ellipse, rgba(155, 75, 34, .5), transparent 70%); }
.ledger-page {
  grid-column: 2;
  padding: clamp(2rem, 5vw, 4.5rem);
  background: linear-gradient(145deg, rgba(232, 210, 166, 0.96), rgba(184, 173, 160, 0.88));
  color: var(--ink);
  clip-path: polygon(0 5%, 88% 0, 100% 90%, 12% 100%);
  box-shadow: -22px 26px 0 rgba(74, 22, 30, .75), 0 40px 90px rgba(0,0,0,.45);
}
.ledger-page h2 { color: var(--ink); }
.ledger-page .section-kicker { color: var(--carmine); }
.ledger-page p { font-size: 1.2rem; line-height: 1.44; }
.margin-note {
  grid-column: 3;
  width: min(310px, 100%);
  padding: 1.5rem;
  color: var(--parchment);
  border-top: 2px solid var(--brass);
  border-right: 2px solid var(--brass);
  clip-path: polygon(0 0, 100% 0, 88% 100%, 0 92%);
  background: rgba(74, 22, 30, .72);
}
.margin-note b { display: block; font-family: var(--impact); color: var(--brass); letter-spacing: .13em; margin-bottom: .75rem; }

.revision { position: relative; margin: 2rem 0; padding: 1.3rem 0 1rem; font-family: var(--display); font-weight: 700; font-size: clamp(1.8rem, 4vw, 3.4rem); line-height: .95; }
.wrong { display: block; color: rgba(18, 13, 10, .72); }
.strike { position: absolute; left: 0; top: 36%; width: 0; height: 8px; background: var(--carmine); transform: rotate(-2deg); transform-origin: left; transition: width .9s ease; }
.correct { display: block; margin-top: .7rem; color: var(--oxblood); opacity: 0; transform: translateY(16px); transition: opacity .8s ease .5s, transform .8s ease .5s; }
.revision.active .strike { width: 88%; }
.revision.active .correct { opacity: 1; transform: translateY(0); }

.timeline {
  min-height: 150vh;
  padding: 16vh 9vw 10vh;
  background:
    linear-gradient(122deg, rgba(18,13,10,.96), rgba(74,22,30,.72), rgba(18,13,10,.98)),
    repeating-linear-gradient(105deg, transparent 0 90px, rgba(192,144,61,.08) 90px 92px);
}
.stair-line { position: absolute; inset: 20vh 12vw auto 8vw; height: 80vh; border-left: 3px solid var(--brass); border-top: 3px solid var(--brass); transform: skew(-22deg) rotate(-16deg); opacity: .45; }
.chamber {
  position: relative;
  width: min(670px, 84vw);
  margin: 0 0 12vh auto;
  padding: clamp(1.7rem, 4vw, 3.2rem);
  background: rgba(18, 13, 10, .78);
  border: 1px solid rgba(192, 144, 61, .55);
  clip-path: polygon(5% 0, 100% 0, 93% 100%, 0 86%);
  box-shadow: 16px 18px 0 rgba(155, 75, 34, .28);
  transition: transform .45s ease, border-color .45s ease, box-shadow .45s ease;
}
.chamber:hover { transform: rotate(-1.4deg) translateY(-6px); border-color: var(--brass); box-shadow: 22px 24px 0 rgba(192, 144, 61, .2); }
.chamber-one { margin-right: 20vw; }
.chamber-two { margin-right: 35vw; background: rgba(74, 22, 30, .82); }
.chamber-three { margin-right: 6vw; }
.chamber p:not(.section-kicker) { color: var(--chalk); font-size: 1.22rem; max-width: 480px; }

.black-desk {
  display: grid;
  place-items: center;
  min-height: 110vh;
  background:
    radial-gradient(circle at 50% 72%, rgba(192, 144, 61, .22), transparent 28rem),
    linear-gradient(180deg, #120D0A, #080504 68%, #120D0A);
}
.fragment { position: absolute; color: var(--brass); font-family: var(--mono); }
.arrow-fragment { left: 11vw; top: 24vh; font-size: 8rem; color: var(--carmine); transform: rotate(-18deg); }
.quill-fragment { right: 16vw; top: 22vh; width: 180px; height: 18px; background: var(--chalk); clip-path: polygon(0 42%, 88% 0, 100% 50%, 88% 100%, 0 58%); transform: rotate(26deg); opacity: .7; }
.page-fragment { left: 18vw; bottom: 18vh; width: 240px; padding: 1.3rem; background: rgba(232, 210, 166, .82); color: var(--ink); clip-path: polygon(0 0, 100% 10%, 88% 100%, 8% 90%); transform: rotate(7deg); }
.seal { right: 20vw; bottom: 20vh; width: 96px; height: 96px; display: grid; place-items: center; border-radius: 50%; background: radial-gradient(circle, #C9342E, #4A161E 72%); color: var(--parchment); font-family: var(--display); font-size: 3.5rem; box-shadow: inset 0 0 18px rgba(18,13,10,.55), 0 18px 40px rgba(0,0,0,.55); }
.seal.touched { box-shadow: inset 0 0 26px rgba(18,13,10,.78), 0 22px 46px rgba(0,0,0,.68); }
.final-emblem { width: min(760px, 86vw); text-align: center; }
.small-sigil { width: min(300px, 55vw); margin-bottom: 1.2rem; filter: drop-shadow(0 0 22px rgba(192,144,61,.35)); }
.small-sigil path { stroke-width: 8; }
.inscription { color: var(--chalk); font-size: clamp(1.25rem, 2vw, 1.7rem); line-height: 1.35; margin: 1.5rem auto 0; max-width: 760px; }
body.sigil-locked .black-desk { background: radial-gradient(circle at 50% 66%, rgba(192, 144, 61, .3), transparent 18rem), linear-gradient(180deg, #120D0A, #070403 70%, #120D0A); }

@keyframes sigilDraw { to { stroke-dashoffset: 0; } }
@keyframes revealTitle { to { opacity: 1; transform: translateY(0); } }

@media (max-width: 880px) {
  .cover-grid { grid-template-columns: 46px 1fr; min-height: 90vh; }
  .sigil-wrap { grid-column: 2; grid-row: 1; width: 72vw; opacity: .78; }
  .hero-copy { grid-column: 2; grid-row: 1; }
  .narrow-column { grid-column: 2; margin: 0; }
  .ledger { grid-template-columns: 1fr; padding: 10vh 6vw; }
  .ledger-page, .margin-note { grid-column: 1; }
  .chamber, .chamber-one, .chamber-two, .chamber-three { margin-right: 0; margin-left: auto; }
}