/*
  Bitcoin Canon — Ledger Edition title surface.
  A sealed title page followed by scripture and the archival order.
*/

body[data-mode]:not([data-mode="home"]) #top { display: none; }
body[data-mode="home"] > .footer { display: none; }

.canon-front-door {
  display: block;
  padding: clamp(3rem, 7vw, 5rem) 0 1rem;
}

.frontispiece-card {
  max-width: 70rem;
  margin: 0 auto;
  text-align: center;
}

.canon-path {
  display: flex;
  justify-content: center;
  align-items: baseline;
  gap: .55rem;
  margin: 0 auto 3.5rem;
  color: var(--c-dim);
  font: 600 var(--type-2xs)/1.5 var(--f-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.canon-path strong {
  color: var(--c-muted);
  font-weight: 600;
}

.canon-path > * + *::before {
  content: "·";
  margin-right: .55rem;
  color: var(--c-line-strong);
}

.frontispiece-plate {
  display: block;
  width: 148px;
  height: auto;
  margin: 0 auto 2.25rem;
  filter: invert(88%) sepia(10%) saturate(660%) hue-rotate(355deg) brightness(90%);
  opacity: .62;
}

html[data-theme="vellum"] .frontispiece-plate {
  filter: none;
  opacity: .7;
}

.frontispiece-card .eyebrow {
  margin-bottom: 1.4rem;
  color: var(--c-muted);
  font: 600 .66rem/1.5 var(--f-mono);
  letter-spacing: .22em;
  text-transform: uppercase;
}

.canon-front-door h1 {
  max-width: 70rem;
  margin: 0 auto;
  color: var(--c-ink);
  font: 500 clamp(3.6rem, 8vw, 6.8rem)/.98 var(--f-serif);
  letter-spacing: -.035em;
}

.front-door-method {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 2rem auto 0;
  color: var(--c-dim);
  font: 500 .7rem/1.5 var(--f-mono);
  letter-spacing: .09em;
}

.front-door-method strong {
  color: var(--c-muted);
  font-weight: 600;
}

.front-door-method > span { color: var(--c-line-strong); }

.opening-scripture {
  max-width: 68ch;
  margin: clamp(5rem, 10vw, 8rem) auto 0;
}

.opening-scripture > header {
  padding-bottom: 1.45rem;
  border-bottom: 1px solid var(--c-line);
}

.opening-scripture > header p {
  margin-bottom: .65rem;
  color: var(--c-muted);
  font: 600 .65rem/1.5 var(--f-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
}

.opening-scripture h2 {
  color: var(--c-ink);
  font: 500 clamp(2.4rem, 5vw, 3.55rem)/1 var(--f-serif);
  letter-spacing: -.02em;
}

.opening-scripture > header span {
  display: block;
  margin-top: .65rem;
  color: var(--c-muted);
  font: italic 1rem/1.45 var(--f-serif);
}

.opening-abstract {
  margin-top: 2rem;
  color: var(--c-ink);
  font: 400 clamp(1.18rem, 1.5vw, 1.38rem)/1.78 var(--f-serif);
}

.opening-abstract p { margin: 0; }

.opening-passage sup {
  margin-right: .24em;
  color: var(--c-seal);
  font: 700 .58em/0 var(--f-mono);
  vertical-align: super;
}

.opening-drop {
  float: left;
  display: block;
  margin: .08em .16em 0 0;
  padding: .05em .16em .02em;
  border: 1px solid var(--c-line-strong);
  color: var(--c-ink);
  font: 500 3.5em/.72 var(--f-serif);
}

.frontispiece-actions {
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
  margin-top: 2rem;
}

.frontispiece-actions button {
  border: 0;
  border-bottom: 1px solid var(--c-line-strong);
  border-radius: var(--radius-none);
  background: transparent;
  color: var(--c-muted);
  padding: .2rem 0;
  font: 600 .72rem/1.5 var(--f-mono);
  letter-spacing: .07em;
}

.frontispiece-actions button:hover {
  color: var(--c-ink);
  border-color: var(--c-ink);
}

.frontispiece-actions button:first-child {
  border: 1px solid var(--c-ink);
  background: var(--c-ink);
  color: var(--c-bg);
  padding: .65rem 1rem;
}

.frontispiece-actions button:first-child:hover {
  background: transparent;
  color: var(--c-ink);
}

.edition-spine-panel {
  max-width: var(--content-max);
  margin: clamp(4rem, 8vw, 6rem) auto 0;
}

.edition-spine-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-top: .75rem;
  border-top: 1px solid var(--c-line-strong);
}

.edition-spine-heading p {
  color: var(--c-muted);
  font: 600 .64rem/1.5 var(--f-mono);
  letter-spacing: .2em;
  text-transform: uppercase;
}

.edition-spine-heading button {
  border: 0;
  border-bottom: 1px solid var(--c-line);
  border-radius: var(--radius-none);
  background: transparent;
  color: var(--c-dim);
  padding: 0;
  font: 500 .64rem/1.5 var(--f-mono);
  letter-spacing: .08em;
}

.edition-spine-heading button:hover {
  color: var(--c-ink);
  border-color: var(--c-line-strong);
}

.edition-spine-list li {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr) auto;
  gap: .8rem;
  align-items: baseline;
  padding: .62rem 0;
  border-bottom: 1px solid var(--c-line);
}

.edition-spine-list span,
.edition-spine-list em {
  color: var(--c-dim);
  font: 500 .65rem/1.4 var(--f-mono);
  font-style: normal;
}

.edition-spine-list strong {
  color: var(--c-muted);
  font: 500 1.08rem/1.3 var(--f-serif);
}

.edition-search-row { display: none; }

.canon-home-register {
  max-width: var(--content-max);
  margin: clamp(4rem, 8vw, 6rem) auto 0;
}

.chain-colophon {
  max-width: var(--content-max);
  margin: 4.5rem auto 1.5rem;
  text-align: center;
}

.chain-colophon > div {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
}

.chain-colophon > div::before,
.chain-colophon > div::after {
  content: "";
  height: 1px;
  background: var(--c-line);
}

.chain-colophon > div span {
  width: .48rem;
  height: .48rem;
  transform: rotate(45deg);
  background: var(--c-seal);
}

.chain-colophon p {
  margin-top: 1.15rem;
  color: var(--c-dim);
  font: 500 .64rem/1.65 var(--f-mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.chain-colophon strong {
  color: var(--c-seal);
  font-weight: 600;
}

.chain-colophon i {
  margin: 0 .7rem;
  color: var(--c-line-strong);
  font-style: normal;
}

@media (max-width: 760px) {
  .canon-front-door { padding: 2.75rem 0 1rem; }
  .canon-path {
    flex-wrap: wrap;
    gap: .25rem .45rem;
    margin-bottom: 2.6rem;
    font-size: .56rem;
  }
  .canon-path > * + *::before { margin-right: .45rem; }
  .frontispiece-plate {
    width: 104px;
    margin-bottom: 1.7rem;
  }
  .frontispiece-card .eyebrow {
    margin-bottom: 1.1rem;
    font-size: .58rem;
  }
  .canon-front-door h1 {
    max-width: 8ch;
    font-size: clamp(3rem, 16vw, 4.2rem);
  }
  .front-door-method {
    max-width: 29rem;
    margin-top: 1.6rem;
    font-size: .62rem;
    line-height: 1.7;
  }
  .opening-scripture {
    margin-top: 5rem;
    max-width: none;
  }
  .opening-scripture > header p { font-size: .58rem; }
  .opening-scripture h2 { font-size: 2.15rem; }
  .opening-scripture > header span { font-size: .92rem; }
  .opening-abstract {
    font-size: 1.08rem;
    line-height: 1.65;
  }
  .frontispiece-actions {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: .75rem 1rem;
  }
  .frontispiece-actions button:first-child {
    flex-basis: 100%;
    width: max-content;
    max-width: 100%;
  }
  .edition-spine-panel { margin-top: 4rem; }
  .edition-spine-heading p,
  .edition-spine-heading button { font-size: .56rem; }
  .edition-spine-list li {
    grid-template-columns: 2rem minmax(0, 1fr) auto;
    gap: .45rem;
  }
  .edition-spine-list strong { font-size: .98rem; }
  .edition-spine-list span,
  .edition-spine-list em { font-size: .55rem; }
  .chain-colophon {
    margin-top: 3.5rem;
    padding-bottom: 3rem;
  }
  .chain-colophon p {
    max-width: 34ch;
    margin-inline: auto;
    font-size: .56rem;
  }
}