:root {
  --bg: #0b0b12;
  --surface: #161625;
  --text: #f4f4fb;
  --muted: #9a9ab5;
  --primary: #7cff6b;
  --accent: #ff4fd8;
  --linen: #1d1b38;
  --rule: rgba(244, 244, 251, 0.18);
  --container: 1180px;
  --gutter: max(16px, env(safe-area-inset-left), env(safe-area-inset-right));
  --header-h: 64px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 clamp(1rem, 0.96rem + 0.2vw, 1.0625rem) / 1.6 var(--font-body);
  overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.12; margin: 0; overflow-wrap: normal; }
p { margin: 0; }
a { color: inherit; }
svg { display: block; }

:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }

.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 50;
  padding: 10px 14px;
  background: var(--primary);
  color: var(--bg);
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
}
.skip:focus { top: 12px; }

.defs { position: absolute; width: 0; height: 0; overflow: hidden; }

.wrap { width: 100%; max-width: var(--container); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font: 600 0.98rem/1.2 var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms var(--ease-out), background-color 160ms var(--ease-out), color 160ms var(--ease-out), box-shadow 200ms var(--ease-out);
}
.btn:active { transform: scale(0.97); }
.btn-glow { background: var(--primary); color: var(--bg); box-shadow: 0 0 0 rgba(124, 255, 107, 0); }
.btn-line { background: transparent; color: var(--text); border-color: var(--muted); }
.btn.small { min-height: 44px; padding: 10px 16px; font-size: 0.9rem; }
.pill { min-height: 44px; padding: 10px 18px; font-size: 0.92rem; }

@media (hover: hover) and (pointer: fine) {
  .btn-glow:hover { box-shadow: 0 0 28px rgba(124, 255, 107, 0.45); transform: translateY(-2px); }
  .btn-line:hover { background: rgba(244, 244, 251, 0.08); transform: translateY(-2px); }
  .nav a:hover { color: var(--primary); }
  .answer:hover { border-color: var(--primary); transform: translateY(-2px); }
  .faq-item summary:hover { color: var(--primary); }
  .social-list a:hover { color: var(--primary); }
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 11, 18, 0.92);
  border-bottom: 1px solid var(--rule);
}
.bar { display: flex; align-items: center; gap: 20px; min-height: var(--header-h); }
.wordmark { display: inline-flex; align-items: center; gap: 10px; font: 700 1.05rem/1.2 var(--font-display); text-decoration: none; color: var(--text); min-height: 44px; }
.wordmark-moth { width: 34px; height: 24px; color: var(--primary); }
.nav { display: none; gap: 20px; margin-left: auto; font: 400 0.8rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: 0.08em; }
.nav a { text-decoration: none; color: var(--muted); padding: 14px 0; transition: color 160ms var(--ease-out); }
.bar .pill { margin-left: auto; flex: none; }
@media (min-width: 980px) {
  .nav { display: flex; }
  .bar .pill { margin-left: 8px; }
}

/* ---------- Hero ---------- */
.hero {
  display: grid;
  gap: 28px;
  align-content: center;
  min-height: calc(100svh - var(--header-h));
  padding-top: 28px;
  padding-bottom: 36px;
}
.masthead { display: grid; gap: 18px; align-content: center; }
.edition {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 8px 0;
  border-top: 3px double var(--rule);
  border-bottom: 1px solid var(--rule);
  font: 400 0.74rem/1.5 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.edition span + span::before { content: "/"; margin-right: 14px; color: var(--accent); }
.hero h1 { font-size: clamp(2.1rem, 1.1rem + 5.4vw, 5.2rem); letter-spacing: -0.02em; }
.accent { color: var(--primary); text-shadow: 0 0 22px rgba(124, 255, 107, 0.45); }
.issued { font: 400 0.95rem/1.5 var(--font-mono); color: var(--muted); }
.token-name { color: var(--text); font-weight: 600; }
.pitch { max-width: 36em; color: var(--text); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }

.plate { margin: 0; display: grid; gap: 10px; }
.plate-art { width: 100%; height: auto; border: 1px solid var(--rule); border-radius: 6px; }
figcaption { font: 400 0.82rem/1.55 var(--font-mono); color: var(--muted); }

@media (min-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 48px; align-items: center; }
}

/* ---------- Parts ---------- */
.part { padding-top: clamp(64px, 9vw, 120px); }
.part-head { display: grid; gap: 12px; max-width: 44em; padding-top: 18px; border-top: 3px double var(--rule); margin-bottom: 32px; }
.part-no, .exhibit-tag, .field-label, .note-no, .step-no, .couplet-no, .footer-h, .card-head, .footer-end {
  font: 600 0.74rem/1.4 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.part h2 { font-size: clamp(1.8rem, 1.2rem + 2.6vw, 3.2rem); }
.part-lede { color: var(--muted); max-width: 40em; }
.fine { font-size: 0.86rem; color: var(--muted); }

html.js .part.pending { opacity: 0; transform: translateY(28px); }
.part { transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }

/* ---------- Part I: notes and lamp ---------- */
.notes-grid { display: grid; gap: 32px; }
.field-notes { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.note { display: grid; gap: 6px; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.note:first-child { padding-top: 0; }
.note h3 { font-size: 1.3rem; }
.note p { color: var(--muted); }

.lamp-exhibit { display: grid; gap: 14px; padding: 18px; background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; }
.sheet-mini svg { width: 100%; height: auto; border-radius: 4px; }
.glow, .flock { transition: opacity 260ms var(--ease-out); }
.sheet-mini .glow, .sheet-mini .flock { opacity: 0; }
.sheet-mini[data-lamp="0"] .glow-moon,
.sheet-mini[data-lamp="1"] .glow-mv,
.sheet-mini[data-lamp="2"] .glow-uv,
.sheet-mini[data-lamp="0"] .flock-0,
.sheet-mini[data-lamp="1"] .flock-1,
.sheet-mini[data-lamp="2"] .flock-2 { opacity: 1; }
.sheet-mini[data-lamp="0"] .glow-moon { opacity: 0.08; }
.sheet-mini[data-lamp="1"] .glow-mv { opacity: 0.14; }
.sheet-mini[data-lamp="2"] .glow-uv { opacity: 0.22; }

.switch { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; margin: 0; padding: 0; border: 0; }
.switch legend { margin-bottom: 8px; padding: 0; }
.switch-pos { position: relative; display: block; }
.switch-pos input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.switch-pos span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 8px 6px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  text-align: center;
  font: 600 0.8rem/1.25 var(--font-body);
  color: var(--muted);
  transition: background-color 160ms var(--ease-out), color 160ms var(--ease-out), border-color 160ms var(--ease-out);
}
.switch-pos input:checked + span { background: rgba(255, 79, 216, 0.16); border-color: var(--accent); color: var(--text); }
.switch-pos input:focus-visible + span { outline: 2px solid var(--primary); outline-offset: 2px; }
.reading { font: 400 0.86rem/1.55 var(--font-mono); color: var(--text); min-height: 3.1em; }

@media (min-width: 900px) {
  .notes-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 56px; align-items: start; }
}

/* ---------- Part II: the key ---------- */
.key-desk { display: grid; gap: 24px; }
.couplet { display: grid; gap: 14px; align-content: start; }
.couplet-q { font: 700 clamp(1.3rem, 1rem + 1.2vw, 1.8rem)/1.2 var(--font-display); }
.couplet-answers { display: grid; gap: 10px; }
.answer {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  min-height: 56px;
  padding: 14px 16px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--rule);
  border-radius: 8px;
  font: 400 1rem/1.4 var(--font-body);
  text-align: left;
  cursor: pointer;
  transition: transform 160ms var(--ease-out), border-color 160ms var(--ease-out);
}
.answer:active { transform: scale(0.97); }
.answer[hidden] { display: none; }
.answer-mark { font-family: var(--font-mono); color: var(--primary); }
.couplet-path { font: 400 0.8rem/1.4 var(--font-mono); color: var(--muted); }

.key-plate { margin: 0; display: grid; gap: 12px; padding: 16px; background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; align-content: start; }
.key-art { width: 100%; height: auto; border-radius: 4px; }
#key-moth { transition: opacity 220ms var(--ease-out); }
.key-plate.is-found #key-moth { filter: drop-shadow(0 0 8px currentColor); }
.key-plate figcaption { display: grid; gap: 4px; }
.key-name { font: 700 1.25rem/1.2 var(--font-display); color: var(--text); }
.key-plate .btn { justify-self: start; }

@media (min-width: 900px) {
  .key-desk { grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); gap: 48px; }
}

/* ---------- Part III: pinning board ---------- */
.board { display: grid; gap: 28px; }
.fields { display: grid; gap: 10px; align-content: start; }
.field {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--muted);
  border-radius: 6px;
  font: 400 1rem/1.4 var(--font-body);
}
.swatches { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0; padding: 0; border: 0; }
.swatches legend { margin-bottom: 8px; padding: 0; }
.swatch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 6px 12px 6px 8px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color 160ms var(--ease-out);
}
.swatch input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.swatch span { width: 22px; height: 22px; border-radius: 50%; background: var(--swatch); box-shadow: 0 0 10px var(--swatch); }
.swatch:has(input:checked) { border-color: var(--text); }
.swatch:has(input:focus-visible) { outline: 2px solid var(--primary); outline-offset: 2px; }
.board-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }

.specimen-card {
  position: relative;
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 20px;
  background: var(--linen);
  border: 1px solid var(--rule);
  border-radius: 8px;
}
.card-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 12px; padding-bottom: 10px; border-bottom: 1px solid var(--rule); }
.card-art { width: min(100%, 300px); height: auto; margin: 0 auto; }
#card-moth { filter: drop-shadow(0 0 6px currentColor); }
.mark { display: none; }
#card-moth[data-mark="eyes"] .mark[data-mark="eyes"],
#card-moth[data-mark="bands"] .mark[data-mark="bands"],
#card-moth[data-mark="speckle"] .mark[data-mark="speckle"] { display: inline; }
.pin { visibility: hidden; }
.specimen-card.is-pinned .pin { visibility: visible; }
.card-fields, .data-table { margin: 0; display: grid; gap: 0; }
.card-fields div, .data-table .row { display: grid; grid-template-columns: minmax(84px, 0.4fr) minmax(0, 1fr); gap: 12px; padding: 8px 0; border-bottom: 1px dashed var(--rule); }
dt { font: 400 0.78rem/1.6 var(--font-mono); text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
dd { margin: 0; }
.card-stamp {
  position: absolute;
  right: 18px;
  bottom: 18px;
  padding: 6px 12px;
  border: 2px solid var(--accent);
  border-radius: 4px;
  color: var(--accent);
  font: 600 0.8rem/1 var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  clip-path: inset(0 100% 0 0);
  transform: rotate(-8deg);
  transition: clip-path 240ms var(--ease-out);
}
.specimen-card.is-pinned .card-stamp { clip-path: inset(0 0 0 0); }
.specimen-card.is-pinned .card-fields { padding-bottom: 40px; }

@media (min-width: 900px) {
  .board { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr); gap: 48px; }
}

/* ---------- Part IV: protocol ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.step { display: grid; gap: 6px; padding: 20px 0; border-bottom: 1px solid var(--rule); }
.step:first-child { border-top: 1px solid var(--rule); }
.step h3 { font-size: 1.35rem; }
.step p { color: var(--muted); max-width: 40em; }
.step-extra .step-no { color: var(--primary); }
@media (min-width: 900px) {
  .step { grid-template-columns: 180px minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 24px; align-items: baseline; }
}

/* ---------- Part V: label and underwing ---------- */
.label-grid { display: grid; gap: 28px; }
.ca-box { display: grid; gap: 12px; align-content: start; padding: 20px; background: var(--surface); border: 1px dashed var(--accent); border-radius: 8px; }
.ca-box code {
  display: block;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 6px;
  font: 400 0.95rem/1.5 var(--font-mono);
  color: var(--primary);
  overflow-wrap: anywhere;
  cursor: pointer;
}
.ca-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.copy-note { font: 400 0.84rem/1.4 var(--font-mono); color: var(--muted); }

.underwing { display: grid; gap: 12px; align-content: start; }
.underwing-stage svg { width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--rule); }
.hind-text { font: 600 11px var(--font-mono); letter-spacing: 0.1em; fill: #f4f08a; }
.fore { transform-box: view-box; transform-origin: 150px 44px; transition: transform 300ms var(--ease-out); }
.underwing-stage.is-open .fore-l { transform: rotate(32deg); }
.underwing-stage.is-open .fore-r { transform: rotate(-32deg); }
.underwing .btn { justify-self: start; }

@media (min-width: 900px) {
  .label-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; }
}

/* ---------- Appendix A ---------- */
.appendix-grid { display: grid; gap: 28px; }
.data-table { border-top: 3px double var(--rule); }
.allocation h3 { font-size: 1.15rem; margin-bottom: 14px; }
.shares { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.share { display: grid; gap: 6px; }
.share-text b { color: var(--primary); font-family: var(--font-mono); font-weight: 600; }
.share-rail { display: block; height: 8px; background: var(--surface); border-radius: 4px; overflow: hidden; }
.share-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  transform-origin: left center;
  transform: scaleX(calc(var(--share) / 100));
  transition: transform 600ms var(--ease-out);
}
html.js .appendix.pending .share-fill { transform: scaleX(0); }
.notes-text { color: var(--muted); font-size: 0.95rem; padding-left: 14px; border-left: 2px solid var(--accent); }
@media (min-width: 900px) {
  .appendix-grid { gap: 48px; }
  .appendix-grid:has([data-tcc-distribution]) { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .notes-text { grid-column: 1 / -1; max-width: 52em; }
}

/* ---------- Part VI: queries ---------- */
.faq-list { border-top: 1px solid var(--rule); max-width: 52em; }
.faq-item { border-bottom: 1px solid var(--rule); }
.faq-item summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  min-height: 56px;
  padding: 14px 0;
  font: 600 1.08rem/1.35 var(--font-display);
  cursor: pointer;
  list-style: none;
  transition: color 160ms var(--ease-out);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-family: var(--font-mono); color: var(--accent); transition: transform 200ms var(--ease-out); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 0 18px; color: var(--muted); max-width: 44em; }

/* ---------- Footer ---------- */
.site-footer { margin-top: clamp(72px, 10vw, 128px); border-top: 3px double var(--rule); background: var(--surface); }
.footer-grid { display: grid; gap: 32px; padding-top: 40px; padding-bottom: 40px; }
.footer-brand { display: grid; gap: 8px; align-content: start; }
.footer-name { font: 700 1.3rem/1.25 var(--font-display); }
.footer-motto { color: var(--muted); }
.footer-socials { display: grid; gap: 10px; align-content: start; }
.social-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.social-list a { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; text-decoration: none; transition: color 160ms var(--ease-out); }
.social-list li::before { content: ""; display: inline-block; width: 8px; height: 8px; margin-right: 10px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 8px var(--primary); }
.social-list li { display: flex; align-items: center; }
.social-list li[data-kind="telegram"]::before { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.social-list li[data-kind="x"]::before { background: var(--text); box-shadow: 0 0 8px var(--text); }
.footer-fine { display: grid; gap: 10px; font-size: 0.86rem; color: var(--muted); }
.colophon { font-family: var(--font-mono); color: var(--text); }
@media (min-width: 900px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 48px; }
  .footer-grid:has(.footer-socials) { grid-template-columns: minmax(0, 1fr) minmax(0, 0.7fr) minmax(0, 1.4fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html.js .part.pending { opacity: 1; transform: none; }
  html.js .appendix.pending .share-fill { transform: scaleX(calc(var(--share) / 100)); }
}