/*
  Bitcoin Canon — Paths, Concordance, Quotes
  Reading trails, concept/doctrine graph, portable verses.
*/

/* — Trail frontispiece ————————————————————————— */
.trail-frontispiece {
  max-width: var(--content-max);
  margin: 0 auto 2rem;
  padding: 1.5rem 0 1.75rem;
  border-bottom: 1px solid var(--c-line);
}

.trail-frontispiece .eyebrow {
  color: var(--c-amber);
  font-family: var(--f-mono);
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: .55rem;
}

.trail-frontispiece h3 {
  color: var(--c-ink);
  font-family: var(--f-serif);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 500;
  line-height: .92;
  letter-spacing: -.02em;
  margin: 0 0 .65rem;
}

.trail-frontispiece > p {
  color: var(--c-muted);
  font-family: var(--f-serif);
  font-size: 1rem;
  font-style: italic;
  line-height: 1.5;
  max-width: 54ch;
  margin-bottom: 1.25rem;
}

/* — Quick action trail buttons ———————————————— */
.path-quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.path-quick-actions button {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .15rem;
  padding: .55rem .85rem;
  border: 1px solid var(--c-line-amber);
  border-radius: .5rem;
  background: transparent;
  text-align: left;
  transition: background var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.path-quick-actions button:hover {
  background: var(--c-amber-bg);
  border-color: var(--c-amber);
}

.path-quick-actions button strong {
  font-family: var(--f-serif);
  font-size: .95rem;
  font-weight: 500;
  color: var(--c-ink);
}

.path-quick-actions button span {
  font-family: var(--f-mono);
  font-size: .62rem;
  font-weight: 600;
  color: var(--c-amber);
  letter-spacing: .02em;
}

/* — Trail shelf spine (canon nav) ————————————— */
.trail-shelf-spine {
  max-width: var(--content-max);
  margin: 0 auto 2rem;
}

.canon-spine-map {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: .5rem;
}

.canon-spine-node {
  display: grid;
  grid-template-columns: 1.8rem 1fr;
  grid-template-rows: auto auto auto;
  gap: .1rem .5rem;
  align-items: start;
  padding: .75rem .85rem;
  border: 1px solid var(--c-line);
  border-radius: .5rem;
  background: transparent;
  text-align: left;
  transition: border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}

.canon-spine-node:hover {
  border-color: var(--c-line-strong);
  background: var(--c-panel);
}

.canon-spine-node b {
  grid-column: 1;
  grid-row: 1 / span 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  border: 1px solid var(--c-line-amber);
  background: var(--c-amber-bg);
  color: var(--c-amber);
  font-family: var(--f-mono);
  font-size: .65rem;
  font-weight: 700;
  font-style: normal;
}

.canon-spine-node strong {
  grid-column: 2;
  grid-row: 1;
  font-family: var(--f-serif);
  font-size: .98rem;
  font-weight: 500;
  color: var(--c-ink);
  line-height: 1;
}

.canon-spine-node span {
  grid-column: 2;
  grid-row: 2;
  font-family: var(--f-serif);
  font-size: .78rem;
  font-style: italic;
  color: var(--c-muted);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.canon-spine-node em {
  grid-column: 1 / -1;
  grid-row: 3;
  font-style: normal;
  font-family: var(--f-mono);
  font-size: .6rem;
  font-weight: 600;
  color: var(--c-amber);
  margin-top: .4rem;
  opacity: .7;
}

/* — Trail section wrappers ———————————————————— */
.trail-start-here,
.trail-incarnation-path,
.trail-before-satoshi,
.trail-canon-spine {
  max-width: var(--content-max);
  margin: 0 auto 1.5rem;
}

/* — Trail library (remaining trails) ————————— */
.trail-library {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  gap: 1rem;
}

/* — Trail meta (ledger / outcome) ————————————— */
.trail-ledger {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin-top: .55rem;
}

.trail-ledger span {
  padding: .2rem .55rem;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  font-family: var(--f-mono);
  font-size: .6rem;
  font-weight: 600;
  color: var(--c-dim);
  letter-spacing: .04em;
}

.trail-outcome {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .35rem .65rem;
  align-items: baseline;
  margin-top: .75rem;
  padding: .6rem .75rem;
  border: 1px solid var(--c-line-amber);
  border-radius: .5rem;
  background: var(--c-amber-bg);
}

.trail-outcome strong {
  font-family: var(--f-mono);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-amber);
}

.trail-outcome span {
  font-family: var(--f-serif);
  font-size: .92rem;
  font-style: italic;
  color: var(--c-muted);
  line-height: 1.4;
}

/* — Trail view ————————————————————————————————— */
.trail-view {
  display: grid;
  gap: 1.25rem;
}

.trail-card {
  border: 1px solid var(--c-line);
  border-radius: 1rem;
  background: transparent;
  box-shadow: none;
  padding: 1.25rem;
}

.trail-card header { margin-bottom: .85rem; }

.trail-card h3 {
  color: var(--c-ink);
  font-family: var(--f-serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: .95;
  letter-spacing: -.02em;
  font-weight: 500;
}

.trail-card header p:last-child {
  margin-top: .45rem;
  color: var(--c-muted);
  font-family: var(--f-serif);
  font-style: italic;
  line-height: 1.5;
}

/* Narrative intro — the editorial voice before the steps */
.trail-intro {
  margin-top: .75rem !important;
  color: var(--c-ink) !important;
  font-family: var(--f-serif) !important;
  font-size: 1.02rem !important;
  font-style: normal !important;
  line-height: 1.7 !important;
  max-width: 62ch;
  opacity: .88;
}

/* Trail path steps */
.trail-card ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .65rem;
  counter-reset: trail;
}

.trail-card li,
.trail-step {
  position: relative;
  display: grid;
  grid-template-columns: minmax(180px, .55fr) 1fr;
  gap: .75rem;
  align-items: start;
  padding: .75rem;
  border: 1px solid var(--c-line);
  border-radius: .75rem;
  background: transparent;
}

.trail-card li::before {
  content: "";
  position: absolute;
  left: 1.45rem;
  top: 3.1rem;
  bottom: -1rem;
  width: 1px;
  background: linear-gradient(var(--c-amber), transparent);
  opacity: .3;
}

.trail-card li:last-child::before { display: none; }

.trail-card li button {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .2rem .6rem;
  align-items: center;
  border: 0;
  background: transparent;
  color: var(--c-ink);
  padding: 0;
  text-align: left;
}

/* Step index badge */
.trail-card li button span,
.step-index {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid var(--c-line-amber);
  background: var(--c-amber-bg);
  color: var(--c-amber);
  font-size: .68rem;
  font-weight: 700;
  font-family: var(--f-sans);
}

.trail-card li button strong {
  font-family: var(--f-serif);
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-ink);
}

.trail-card li button em {
  color: var(--c-amber);
  font-family: var(--f-mono);
  font-size: .65rem;
  font-style: normal;
  font-weight: 600;
}

.trail-card li p {
  margin: 0;
  color: var(--c-muted);
  font-family: var(--f-serif);
  font-size: .95rem;
  line-height: 1.5;
}

/* Trail receipt / annotation */
.trail-receipt {
  padding: .55rem .75rem;
  border: 1px solid var(--c-line);
  border-radius: .65rem;
  background: transparent;
}

.trail-receipt strong,
.trail-receipt b { color: var(--c-amber); font-size: .72rem; font-family: var(--f-mono); margin-right: .3rem; }

/* Hide copy actions on trails */
.trail-copy-actions { display: none; }

/* — Concept view ———————————————————————————————— */
.concept-view {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.1rem;
  align-items: stretch;
}

.concept-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--c-line);
  border-radius: .9rem;
  background: rgba(255, 255, 255, .018);
  box-shadow: none;
  padding: 1.25rem 1.25rem 1.1rem;
  transition: border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}

.concept-card:hover {
  border-color: var(--c-line-amber);
  background: var(--c-panel-2);
}

.concept-card header {
  display: block;
  margin-bottom: .7rem;
}

.concept-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .65rem;
  margin-bottom: .45rem;
}

.concept-card header .eyebrow { margin: 0; }

.concept-card header span {
  color: var(--c-amber);
  border: 1px solid var(--c-line-amber);
  border-radius: 999px;
  padding: .2rem .55rem;
  white-space: nowrap;
  font-size: .6rem;
  font-weight: 700;
  font-family: var(--f-sans);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.concept-card h3 {
  font-size: 1.4rem;
  line-height: 1.12;
  letter-spacing: -.01em;
  margin: 0;
}

.concept-card p { color: var(--c-muted); line-height: 1.55; }
.concept-card .concept-short { margin-top: .15rem; }

.concept-short {
  color: var(--c-amber) !important;
  font-weight: 700;
}

.concept-passages {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-top: .85rem;
}

.concept-passages button {
  border: 1px solid var(--c-line-amber);
  border-radius: 999px;
  background: transparent;
  color: var(--c-amber);
  padding: .25rem .55rem;
  font-size: .68rem;
  font-weight: 600;
  transition: background var(--fast) var(--ease);
}

.concept-passages button:hover { background: var(--c-amber-bg); }

/* Separator between role label and verse ref inside passage pill */
.concept-passages button span { margin-right: .2rem; opacity: .75; }

/* — Concept aliases ——————————————————————————— */
.concept-aliases {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
  margin-top: .65rem;
}

.concept-aliases span {
  border: 1px solid var(--c-line);
  border-radius: 999px;
  padding: .18rem .55rem;
  font-size: .68rem;
  color: var(--c-muted);
  font-style: italic;
}

/* — Doctrine edges ———————————————————————————— */
.concept-edges {
  margin-top: .75rem;
  padding-top: .65rem;
  border-top: 1px solid var(--c-line);
}

.concept-edges > strong {
  display: block;
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-amber);
  margin-bottom: .45rem;
}

.concept-edges button {
  display: flex;
  gap: .4rem;
  align-items: baseline;
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--c-muted);
  text-align: left;
  padding: .3rem 0;
  border-bottom: 1px solid var(--c-line);
  font-family: var(--f-serif);
  font-size: .88rem;
  transition: color var(--fast) var(--ease);
}

.concept-edges button:hover { color: var(--c-ink); }

.concept-edges button span {
  color: var(--c-amber);
  font-size: .62rem;
  font-family: var(--f-sans);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  flex-shrink: 0;
}

/* — Related doctrine —————————————————————————— */
.related-concepts {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin-top: .75rem;
  padding-top: .65rem;
  border-top: 1px solid var(--c-line);
  align-items: center;
}

.related-concepts > strong {
  width: 100%;
  display: block;
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-dim);
  margin-bottom: .1rem;
}

.related-concepts button {
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: transparent;
  color: var(--c-muted);
  padding: .22rem .62rem;
  font-size: .72rem;
  transition: border-color var(--fast) var(--ease), color var(--fast) var(--ease);
}

.related-concepts button:hover { border-color: var(--c-line-amber); color: var(--c-amber-2); }

/* — Quote view ————————————————————————————————— */
.quote-view {
  display: grid;
  gap: .85rem;
}

.quote-card {
  border: 1px solid var(--c-line);
  border-radius: 1rem;
  background: transparent;
  box-shadow: none;
  padding: 1.25rem;
  transition: border-color var(--fast) var(--ease);
}

.quote-card:hover { border-color: var(--c-line-strong); }

.quote-card blockquote {
  font-family: var(--f-serif);
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  line-height: 1.35;
  letter-spacing: -.015em;
  color: var(--c-ink);
  margin-bottom: .75rem;
}

.quote-card cite {
  display: block;
  color: var(--c-amber);
  font-style: normal;
  font-family: var(--f-mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .04em;
}

.citation-grid {
  display: grid;
  gap: .5rem;
  margin-top: .75rem;
}

.citation-grid article {
  border: 1px solid var(--c-line);
  border-radius: .65rem;
  background: transparent;
  padding: .65rem .85rem;
}

.citation-artifact {
  border: 1px solid var(--c-line);
  border-radius: .65rem;
  background: transparent;
  padding: .65rem .85rem;
}

.citation-artifact strong { color: var(--c-ink); font-family: var(--f-serif); }
.citation-artifact span { color: var(--c-muted); font-size: .88rem; }

.citation-concepts {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin-top: .6rem;
}

.citation-concepts button {
  border: 1px solid var(--c-line-amber);
  border-radius: 999px;
  background: transparent;
  color: var(--c-amber);
  padding: .22rem .48rem;
  font-size: .65rem;
  font-weight: 600;
}

/* — Archive / Source Ledger ————————————————————— */
.archive-view,
.writings-view {
  max-width: var(--reading-width);
}

.source-ledger,
.provenance-ledger {
  display: grid;
  gap: .65rem;
}

.source-ledger div,
.provenance-ledger div {
  border: 1px solid var(--c-line);
  border-radius: .65rem;
  background: transparent;
  padding: .75rem;
}

.source-ledger dt,
.provenance-ledger dt {
  color: var(--c-amber);
  font-family: var(--f-mono);
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: .2rem;
}

.source-ledger dd,
.provenance-ledger dd {
  color: var(--c-muted);
  font-family: var(--f-serif);
  font-size: .96rem;
  line-height: 1.5;
}

.integrity-pill,
.status-badge,
.integrity-badge,
.tier-badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  padding: .18rem .48rem;
  font-size: .6rem;
  font-weight: 700;
  font-family: var(--f-sans);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--c-dim);
  gap: .25rem;
  margin-right: .35rem;
}

/* — Responsive ————————————————————————————————— */
@media (max-width: 700px) {
  .trail-card li,
  .trail-step {
    grid-template-columns: 1fr;
  }
  .trail-card li::before { display: none; }
  .concept-view { grid-template-columns: 1fr; }
}

/* — Phone ————————————————————————————————————————— */
@media (max-width: 600px) {
  /* Smaller heading so long titles don't wrap to 4 lines */
  .trail-card h3 {
    font-size: clamp(1.35rem, 5.5vw, 1.8rem);
    line-height: 1.05;
  }

  /* Tighter card padding on phone */
  .trail-card {
    padding: 1rem;
    border-radius: .75rem;
  }

  /* Hide the canon section nav map — redundant with Contents tab */
  .trail-shelf-spine {
    display: none;
  }

  /* Quick action buttons go full-width on phone */
  .path-quick-actions {
    flex-direction: column;
  }

  .path-quick-actions button {
    width: 100%;
  }

  /* Step note text slightly smaller */
  .trail-card li p {
    font-size: .88rem;
  }

  /* Outcome block more compact */
  .trail-outcome {
    margin-top: .5rem;
    padding: .45rem .6rem;
  }

  /* Frontispiece tighter */
  .trail-frontispiece h3 {
    font-size: clamp(1.7rem, 7vw, 2.4rem);
  }
}