/* ── Timeline layout ─────────────────────────────────────────── */

.timeline-hero {
  padding: 2rem 0 1.5rem;
}

.timeline-layout {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.timeline-grid {
  flex: 1;
  min-width: 0;
  display: grid;
  --lane-width: 14px;
  align-items: stretch;
}

/* ── Year sections ───────────────────────────────────────────── */

.year-section {
  padding: 0 0 2rem 1.25rem;
  max-width: 75ch;
}

.year-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white, #E4E4D3);
  opacity: 0.4;
  margin: 0 0 0.75rem;
}

.year-gap {
  text-align: center;
  opacity: 0.25;
  padding: 0.25rem 0;
  font-size: 0.875rem;
  letter-spacing: 0.3em;
  color: var(--white, #E4E4D3);
  align-self: center;
}

/* ── Span bars ───────────────────────────────────────────────── */

.span-bar {
  background: var(--span-color, #6e44ff);
  border-radius: 99px;
  width: 6px;
  justify-self: center;
  align-self: stretch;
  position: relative;
}

.span-bar.fuzzy-top {
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 3rem);
  mask-image: linear-gradient(to bottom, transparent, black 3rem);
}

.span-bar.fuzzy-bottom {
  -webkit-mask-image: linear-gradient(to top, transparent, black 3rem);
  mask-image: linear-gradient(to top, transparent, black 3rem);
}

.span-bar.fuzzy-top.fuzzy-bottom {
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent,
    black 3rem,
    black calc(100% - 3rem),
    transparent
  );
  mask-image: linear-gradient(
    to bottom,
    transparent,
    black 3rem,
    black calc(100% - 3rem),
    transparent
  );
}

.span-label {
  /* Hidden by default; revealed via title attribute tooltip */
  display: none;
}

/* ── Entry cards ─────────────────────────────────────────────── */

.entry-card {
  margin-bottom: 1.25rem;
  padding-left: 0.875rem;
  border-left: 2px solid rgba(228, 228, 211, 0.12);
  transition: border-color 0.15s;
}

.entry-card:hover {
  border-color: rgba(228, 228, 211, 0.3);
}

.entry-card-header {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.2rem;
}

.entry-kind {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.45;
}

.entry-date {
  font-size: 0.7rem;
  opacity: 0.4;
}

/* Kind-specific accent colors */
.entry-kind-film   { --entry-accent: #7eb8ff; }
.entry-kind-book   { --entry-accent: #ffe07e; }
.entry-kind-tech   { --entry-accent: var(--primary, #9FFE98); }
.entry-kind-event  { --entry-accent: var(--secondary, #F86E38); }
.entry-kind-idea   { --entry-accent: #cf9fff; }
.entry-kind-personal { --entry-accent: #ff9fd5; }

.entry-card[class*="entry-kind-"] {
  border-left-color: color-mix(in srgb, var(--entry-accent, rgba(228,228,211,0.2)) 40%, transparent);
}

.entry-title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin: 0 0 0.3rem;
  line-height: 1.35;
  color: var(--white, #E4E4D3);
}

.entry-context {
  font-size: 0.8125rem;
  opacity: 0.75;
  line-height: 1.55;
}

.entry-context p {
  margin: 0 0 0.4rem;
}

.entry-context p:last-child {
  margin-bottom: 0;
}

details.entry-details {
  margin-top: 0.5rem;
}

details.entry-details > summary {
  font-size: 0.75rem;
  cursor: pointer;
  opacity: 0.5;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  user-select: none;
}

details.entry-details > summary::-webkit-details-marker {
  display: none;
}

details.entry-details > summary::before {
  content: "▸";
  display: inline-block;
  transition: transform 0.15s;
}

details.entry-details[open] > summary::before {
  transform: rotate(90deg);
}

details.entry-details > summary:hover {
  opacity: 0.9;
}

.entry-details-body {
  margin-top: 0.5rem;
  padding: 0.625rem 0.75rem;
  background: rgba(228, 228, 211, 0.04);
  border-radius: 4px;
  font-size: 0.8125rem;
  line-height: 1.5;
}

.entry-source-citation {
  opacity: 0.8;
  margin-bottom: 0.5rem;
}

.entry-source-citation:last-child {
  margin-bottom: 0;
}

.entry-term-summary {
  opacity: 0.75;
  border-top: 1px solid rgba(228, 228, 211, 0.08);
  padding-top: 0.5rem;
  margin-top: 0.5rem;
}

.entry-term-summary:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

/* ── Era compass ─────────────────────────────────────────────── */

.era-compass {
  position: sticky;
  top: calc(var(--nav-height) + 1rem);
  width: 200px;
  flex-shrink: 0;
  background: var(--menu, #2A2927);
  border-radius: 8px;
  padding: 1rem;
  font-size: 0.875rem;
  align-self: flex-start;
  transition: opacity 0.2s;
}

.era-compass.switching {
  opacity: 0;
}

.compass-year {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.375rem;
  color: var(--white, #E4E4D3);
  font-variant-numeric: tabular-nums;
}

.compass-framing {
  font-size: 0.75rem;
  line-height: 1.45;
  opacity: 0.7;
  margin: 0 0 0.875rem;
}

.compass-intensity {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 0.75rem;
}

.compass-category {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.compass-cat-name {
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.55;
  white-space: nowrap;
  min-width: 4rem;
}

.compass-cat-bar {
  display: block;
  height: 4px;
  background: var(--cat-color, #6e44ff);
  border-radius: 2px;
  width: calc(var(--cat-count, 1) * 10px);
  max-width: 100%;
}

.compass-newsletter-link {
  display: block;
  font-size: 0.7rem;
  color: var(--primary, #9FFE98);
  text-decoration: none;
  margin-top: 0.5rem;
  opacity: 0.85;
}

.compass-newsletter-link:hover {
  opacity: 1;
  text-decoration: underline;
}

/* ── Entry detail page ───────────────────────────────────────── */

.entry-detail {
  max-width: 680px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.entry-detail-back {
  margin-bottom: 1.5rem;
}

.entry-detail-back a {
  font-size: 0.8125rem;
  opacity: 0.6;
  text-decoration: none;
}

.entry-detail-back a:hover {
  opacity: 1;
}

.entry-detail-header {
  margin-bottom: 1.25rem;
}

.entry-detail-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0.25rem 0 0;
  line-height: 1.25;
  color: var(--entry-accent, var(--white, #E4E4D3));
}

.entry-detail-source,
.entry-detail-term,
.entry-detail-related {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(228, 228, 211, 0.1);
}

.entry-detail-source h2,
.entry-detail-term h2,
.entry-detail-related h2 {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.4;
  margin: 0 0 0.75rem;
}

.entry-source-url {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--primary, #9FFE98);
  text-decoration: none;
}

.entry-source-url:hover {
  text-decoration: underline;
}

.entry-term-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  color: var(--primary, #9FFE98);
  text-decoration: none;
}

.entry-term-link:hover {
  text-decoration: underline;
}

.related-entries-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.related-entries-list li {
  font-size: 0.875rem;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.entry-detail-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--primary, #9FFE98);
  text-decoration: none;
  opacity: 0.8;
}

.entry-detail-link:hover {
  opacity: 1;
  text-decoration: underline;
}

/* ── Reverse-discovery (on the timeline) ─────────────────────── */

.on-the-timeline {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(228, 228, 211, 0.1);
}

.on-the-timeline h2 {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.4;
  margin: 0 0 0.75rem;
}

.timeline-entry-refs,
.timeline-span-refs {
  list-style: none;
  padding: 0;
  margin: 0 0 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.875rem;
}

.span-ref-category {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-left: 0.25rem;
  opacity: 0.8;
}

/* ── Responsive ──────────────────────────────────────────────── */

@media (max-width: 768px) {
  .era-compass {
    display: none; /* compass added back via sticky JS behaviour; too narrow on mobile */
  }

  .timeline-layout {
    gap: 0;
  }
}