/**
 * Skim Cards — flip-through story layer
 * One card per node, horizontal scroll-snap deck, era-scoped styling.
 */

/* ── Page breakout (escape 740px content-area) ── */
.node-type-page:has(.skim-page) .content-area {
  max-width: 100%;
  padding: 0;
}

/* Hide timeline scrubber — skim spans all eras, cursor position is meaningless */
.node-type-page:has(.skim-page) .timeline-scrubber {
  display: none;
}

/* Override neon green footer links — unreadable on light backgrounds */
.node-type-page:has(.skim-page) .footer-map-link,
.node-type-page:has(.skim-page) .footer-skim-link {
  color: var(--sf-text);
  opacity: 0.6;
}

.node-type-page:has(.skim-page) .footer-map-link:hover,
.node-type-page:has(.skim-page) .footer-skim-link:hover {
  opacity: 1;
  text-shadow: none;
}

.skim-page {
  max-width: 100%;
  padding: var(--sf-space-md);
}

/* ── Header ── */
.skim-header {
  text-align: center;
  margin-bottom: var(--sf-space-lg);
}

.skim-title {
  font-family: var(--sf-font-mono);
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  margin: 0 0 var(--sf-space-sm);
}

.skim-subtitle {
  font-size: 0.85rem;
  color: var(--sf-muted);
}

/* ── Thread filter bar ── */
.skim-filters {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: var(--sf-space-sm) var(--sf-space-md);
  margin-bottom: var(--sf-space-lg);
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--sf-bg);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.skim-filters::-webkit-scrollbar { display: none; }

.skim-filter {
  flex: 0 0 auto;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--sf-border);
  border-radius: 2rem;
  background: transparent;
  color: var(--sf-text);
  font-family: var(--sf-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--sf-duration-fast) var(--sf-ease);
  white-space: nowrap;
}

.skim-filter:not([data-thread="all"])::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--filter-color);
  margin-right: 0.4rem;
  vertical-align: middle;
}

.skim-filter.active {
  background: var(--sf-text);
  color: var(--sf-bg);
  border-color: var(--sf-text);
}

.skim-filter:hover:not(.active) {
  border-color: var(--sf-text);
}

/* ── Card deck — horizontal scroll-snap ── */
.skim-deck {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  gap: var(--sf-space-lg);
  padding: var(--sf-space-md) calc(50vw - min(210px, 42.5vw));
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.skim-deck::-webkit-scrollbar { display: none; }

/* ── Card ── */
.skim-card {
  flex: 0 0 min(420px, 85vw);
  scroll-snap-align: center;
  border-radius: 6px;
  overflow: hidden;
  transition: opacity var(--sf-duration-med) var(--sf-ease),
              transform var(--sf-duration-med) var(--sf-ease);
  /* Era tokens scoped per card — defaults from page */
  background: var(--card-bg, var(--sf-bg));
  color: var(--card-text, var(--sf-text));
  border: 1px solid var(--card-border, var(--sf-border));
}

/* Adjacent cards: dimmed + scaled */
.skim-card:not(.skim-card--active) {
  opacity: 0.4;
  transform: scale(0.92);
}

.skim-card--active {
  opacity: 1;
  transform: scale(1);
}

/* Thread color bar */
.skim-card__thread-bar {
  height: 3px;
}

/* Hero image — above text */
.skim-card__image {
  height: 180px;
  overflow: hidden;
}

.skim-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Screenshot preview — below text, before "Read full" */
.skim-card__screenshot {
  max-height: 160px;
  overflow: hidden;
  border-radius: 3px;
  border: 1px solid var(--card-border, var(--sf-border));
  margin-bottom: var(--sf-space-md);
  opacity: 0.85;
}

.skim-card__screenshot img {
  width: 100%;
  display: block;
  object-fit: cover;
  object-position: top;
}

/* Card body */
.skim-card__body {
  padding: var(--sf-space-md) var(--sf-space-lg) var(--sf-space-lg);
}

/* Meta row */
.skim-card__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.75rem;
  margin-bottom: var(--sf-space-sm);
  color: var(--card-muted, var(--sf-muted));
}

.skim-card__meta .node-type-badge {
  font-size: 0.65rem;
  padding: 0.15em 0.5em;
}

.skim-card__thread-name {
  font-family: var(--sf-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

/* Title — era font progression */
.skim-card__title {
  font-size: 1.3rem;
  line-height: 1.3;
  margin: 0 0 var(--sf-space-sm);
  color: var(--card-text, var(--sf-text));
}

/* Serif for early eras */
[data-era="era-2024-2026"] .skim-card__title,
[data-era="era-2027-2028"] .skim-card__title {
  font-family: var(--sf-font-serif);
}

/* Mono creep for mid eras */
[data-era="era-2029-2030"] .skim-card__title {
  font-family: var(--sf-font-serif);
  letter-spacing: 0.01em;
}

/* Full mono for late eras */
[data-era="era-2031-2032"] .skim-card__title,
[data-era="era-2033-2034"] .skim-card__title,
[data-era="era-2035"] .skim-card__title {
  font-family: var(--sf-font-mono);
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

/* Excerpt */
.skim-card__excerpt {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--card-muted, var(--sf-muted));
  margin: 0 0 var(--sf-space-md);
  /* Clamp to ~4 lines */
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Actions */
.skim-card__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.skim-card__read {
  font-family: var(--sf-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--card-accent, var(--sf-accent));
  text-decoration: none;
  transition: opacity var(--sf-duration-fast) var(--sf-ease);
}

.skim-card__read:hover {
  opacity: 0.7;
}

/* Visited state */
.skim-card--visited {
  opacity: 0.85;
}

.skim-card--visited .skim-card__title::after {
  content: " \2713";
  font-size: 0.8em;
  color: var(--card-muted, var(--sf-muted));
}

/* ── Era token scoping — each card is its own era island ── */
.skim-card[data-era="era-2024-2026"] {
  --card-bg: #ffffff;
  --card-text: #1a1a1a;
  --card-accent: #2c5f8a;
  --card-muted: #6b7280;
  --card-border: rgba(0,0,0,0.08);
}

.skim-card[data-era="era-2027-2028"] {
  --card-bg: #f9f7f4;
  --card-text: #1d1d1b;
  --card-accent: #7a5830;
  --card-muted: #8a8580;
  --card-border: rgba(0,0,0,0.1);
}

.skim-card[data-era="era-2029-2030"] {
  --card-bg: #f0edea;
  --card-text: #1a1a18;
  --card-accent: #c0392b;
  --card-muted: #777;
  --card-border: rgba(0,0,0,0.15);
}

.skim-card[data-era="era-2031-2032"] {
  --card-bg: #eae8e4;
  --card-text: #111;
  --card-accent: #c0392b;
  --card-muted: #666;
  --card-border: rgba(0,0,0,0.2);
}

.skim-card[data-era="era-2033-2034"] {
  --card-bg: #1a1a18;
  --card-text: #d8d4cc;
  --card-accent: #e6a817;
  --card-muted: #888;
  --card-border: rgba(255,255,255,0.12);
}

.skim-card[data-era="era-2035"] {
  --card-bg: #f4f2ed;
  --card-text: #2a2825;
  --card-accent: #3d7a5f;
  --card-muted: #7a7570;
  --card-border: rgba(0,0,0,0.08);
}

/* ── Bottom nav ── */
.skim-nav {
  display: flex;
  justify-content: space-between;
  margin-top: var(--sf-space-xl);
  padding: 0 var(--sf-space-md);
  font-family: var(--sf-font-mono);
  font-size: 0.85rem;
}

.skim-nav a {
  color: var(--sf-accent);
  text-decoration: none;
}

.skim-nav a:hover {
  text-decoration: underline;
}

/* ── No-JS fallback — vertical stack, all visible ── */
@media (scripting: none) {
  .skim-deck {
    flex-direction: column;
    overflow-x: visible;
    scroll-snap-type: none;
    padding: 0;
    gap: var(--sf-space-md);
  }

  .skim-card {
    flex: 0 0 auto;
    max-width: 500px;
    margin: 0 auto;
    opacity: 1;
    transform: none;
  }

  .skim-card:not(.skim-card--active) {
    opacity: 1;
    transform: none;
  }
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .skim-page {
    padding: var(--sf-space-sm);
  }

  .skim-deck {
    padding: var(--sf-space-sm) calc(50vw - 42.5vw);
  }

  .skim-card__image {
    height: 140px;
  }

  .skim-card__title {
    font-size: 1.15rem;
  }
}