/*
 * Uniform horizontal timeline cards.
 * Detail no longer changes with viewport distance; every node keeps one calm,
 * two-line summary box so scrolling never changes the rail geometry.
 */

.rail {
  --lod-card-width: clamp(245px, 20.7vw, 280px);
  -webkit-user-select: none;
  user-select: none;
  padding-inline: max(
    48px,
    calc(var(--stage-inset) + clamp(48px, 12vw, 180px)),
    calc(50vw - var(--lod-card-width) / 2)
  );
}

.prediction-zone,
.rail-origin,
.rail-edge-control,
.axis-sector-label {
  -webkit-user-select: none;
  user-select: none;
}

.prediction-card.lod-uniform:not(.add-card) {
  --lod-card-border: color-mix(in srgb, var(--prediction) 18%, transparent);
  --lod-card-bg: color-mix(in srgb, var(--bg) 88%, transparent);
  --lod-card-copy: color-mix(in srgb, var(--text) 70%, var(--muted));
  --lod-card-meta: color-mix(in srgb, var(--text) 60%, var(--muted));
  --lod-card-accent: color-mix(in srgb, var(--text) 54%, var(--muted));
  --lod-connector-opacity: .44;
  box-sizing: border-box;
  display: flex;
  width: var(--lod-card-width);
  min-width: var(--lod-card-width);
  max-width: var(--lod-card-width);
  min-height: 106px !important;
  max-height: 106px;
  flex: 0 0 var(--lod-card-width) !important;
  align-self: center !important;
  justify-content: flex-start;
  padding: 13px 18px 14px !important;
  translate: 0 calc(50% + 36px) !important;
  border: 1px solid var(--lod-card-border);
  background: var(--lod-card-bg);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .24);
  opacity: 1;
  filter: none;
  cursor: pointer;
  transition:
    border-color 180ms ease-out,
    background-color 180ms ease-out;
}

/*
 * Every card keeps the same geometry. Time distance and the current selection
 * are communicated only through light, keeping the rail calm while preserving
 * a clear point of attention.
 */
.prediction-card.lod-uniform.is-light-near:not(.add-card) {
  --lod-card-border: color-mix(in srgb, var(--prediction) 30%, transparent);
  --lod-card-bg: color-mix(in srgb, var(--bg) 84%, transparent);
  --lod-card-copy: color-mix(in srgb, var(--text) 82%, var(--muted));
  --lod-card-meta: color-mix(in srgb, var(--text) 72%, var(--muted));
  --lod-card-accent: color-mix(in srgb, var(--text) 68%, var(--muted));
  --lod-connector-opacity: .68;
}

.prediction-card.lod-uniform.is-light-primary:not(.add-card) {
  --lod-card-border: color-mix(in srgb, var(--text) 48%, transparent);
  --lod-card-bg: color-mix(in srgb, var(--bg) 74%, transparent);
  --lod-card-copy: color-mix(in srgb, var(--text) 96%, var(--muted));
  --lod-card-meta: color-mix(in srgb, var(--text) 88%, var(--muted));
  --lod-card-accent: color-mix(in srgb, var(--text) 92%, var(--muted));
  --lod-connector-opacity: 1;
  box-shadow:
    0 12px 28px rgba(0, 0, 0, .28),
    0 0 18px color-mix(in srgb, var(--text) 7%, transparent);
}

.prediction-card.lod-uniform.is-light-primary::before {
  filter: drop-shadow(0 0 7px color-mix(in srgb, var(--text) 26%, transparent));
}

.prediction-card.lod-uniform.is-light-primary .prediction-days-ahead {
  text-shadow: 0 0 12px color-mix(in srgb, var(--text) 14%, transparent);
}

.prediction-card.lod-uniform:not(.add-card):hover,
.prediction-card.lod-uniform:not(.add-card):focus-visible {
  --lod-card-border: color-mix(in srgb, var(--text) 52%, transparent);
  --lod-card-bg: color-mix(in srgb, var(--bg) 74%, transparent);
  --lod-card-copy: color-mix(in srgb, var(--text) 96%, var(--muted));
  --lod-card-meta: color-mix(in srgb, var(--text) 88%, var(--muted));
  --lod-card-accent: color-mix(in srgb, var(--text) 92%, var(--muted));
  --lod-connector-opacity: 1;
  opacity: 1;
  outline: none;
  filter: none;
  transform: none;
}

.prediction-card.lod-uniform .lod-chip-badge {
  display: inline-flex;
  align-items: center;
  width: max-content;
  min-height: 20px;
  border: 1px solid var(--lod-card-border);
  padding: 3px 8px;
  color: var(--lod-card-meta);
  font: 650 8px/1 var(--mono);
  letter-spacing: .15em;
  transition: color 180ms ease-out, border-color 180ms ease-out;
}

.prediction-card.lod-uniform .lod-uniform-head {
  display: flex;
  width: 100%;
  min-width: 0;
  align-items: center;
  gap: 12px;
}

.prediction-card.lod-uniform .lod-uniform-head .prediction-date {
  position: static !important;
  inset: auto !important;
  display: block !important;
  width: auto !important;
  color: var(--lod-card-meta) !important;
  font: 600 12px/1 "Bahnschrift Condensed", "Arial Narrow", var(--mono) !important;
  letter-spacing: .09em !important;
  text-align: left !important;
  white-space: nowrap;
  text-shadow: none !important;
  translate: 0 !important;
  transform: scaleX(.9) !important;
  transform-origin: left center !important;
  transition: color 180ms ease-out;
}

.prediction-card.lod-uniform .prediction-meta,
.prediction-card.lod-uniform .featured-mark,
.prediction-card.lod-uniform .prediction-pack-source {
  display: none !important;
}

.prediction-card.lod-uniform .prediction-days-ahead {
  display: block !important;
  bottom: calc(100% + 48px) !important;
  color: var(--lod-card-accent) !important;
  text-shadow: none;
  transition: color 180ms ease-out, text-shadow 180ms ease-out;
}

.prediction-card.lod-uniform:not(.add-card) .prediction-title {
  display: -webkit-box;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  min-height: calc(2 * 1.35em);
  max-height: calc(2 * 1.35em);
  overflow: hidden;
  margin: 10px 0 0 !important;
  color: var(--lod-card-copy);
  font-size: 16px !important;
  font-weight: 470;
  line-height: 1.35 !important;
  letter-spacing: .045em;
  text-overflow: ellipsis;
  white-space: normal;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  transition: color 180ms ease-out;
}

.prediction-card.closed.lod-uniform:not(.add-card),
.prediction-card.lod-uniform.is-light-past:not(.add-card) {
  --lod-card-border: rgba(180, 190, 200, .12);
  --lod-card-bg: color-mix(in srgb, var(--bg) 94%, transparent);
  --lod-card-copy: rgba(190, 200, 210, .5);
  --lod-card-meta: rgba(190, 200, 210, .42);
  --lod-card-accent: rgba(190, 200, 210, .38);
  --lod-connector-opacity: .24;
  opacity: 1;
}

.prediction-card.closed.lod-uniform .lod-chip-badge {
  border-color: var(--lod-card-border);
  color: var(--lod-card-meta);
}

.prediction-card.lod-uniform:not(.add-card)::before {
  opacity: var(--lod-connector-opacity);
  transition: opacity 180ms ease-out;
}

.prediction-card.is-featured.lod-uniform:not(.add-card),
.prediction-card.launch-projection-source.lod-uniform:not(.add-card) {
  border-color: color-mix(in srgb, var(--prediction) 42%, transparent) !important;
}

/* Crossing TODAY always wins over focus, hover and featured lighting. */
.rail .prediction-card.lod-uniform.is-past-position:not(.add-card),
.rail .prediction-card.lod-uniform.is-past-position:not(.add-card):hover,
.rail .prediction-card.lod-uniform.is-past-position:not(.add-card):focus-visible {
  --lod-card-border: rgba(180, 190, 200, .1);
  --lod-card-bg: color-mix(in srgb, var(--bg) 96%, transparent);
  --lod-card-copy: rgba(190, 200, 210, .42);
  --lod-card-meta: rgba(190, 200, 210, .34);
  --lod-card-accent: rgba(190, 200, 210, .3);
  --lod-connector-opacity: .18;
  border-color: var(--lod-card-border) !important;
  box-shadow: 0 10px 24px rgba(0, 0, 0, .2);
  opacity: .13;
  filter: none;
}

.rail .prediction-card.lod-uniform.is-past-position:not(.add-card)::before {
  filter: none;
}

.rail .prediction-card.lod-uniform.is-past-position:not(.add-card) .prediction-days-ahead {
  text-shadow: none;
}

.prediction-card-tap-surface {
  position: absolute;
  z-index: 20;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
  background: transparent;
  color: transparent;
  cursor: inherit;
  appearance: none;
  /* 全面タップ面からでも、タイムラインの横スワイプはブラウザへ渡す。 */
  touch-action: pan-x;
}

.rail.lod-is-dragging .prediction-card:not(.add-card),
.rail.is-dragging .prediction-card:not(.add-card),
.rail.lod-is-dragging .prediction-card:not(.add-card)::before,
.rail.is-dragging .prediction-card:not(.add-card)::before,
.rail.lod-is-dragging .prediction-card:not(.add-card) *,
.rail.is-dragging .prediction-card:not(.add-card) * {
  transition: none !important;
}

/* The fixed ACTUAL axis remains legible when a moving card passes behind it. */
.rail .prediction-card.is-axis-overlap:not(.add-card),
.rail .prediction-card.is-axis-overlap:not(.add-card):hover,
.rail .prediction-card.is-axis-overlap:not(.add-card):focus-visible {
  opacity: .09;
  filter: none;
}

@media (max-width: 760px) {
  .rail {
    --lod-card-width: min(290px, calc(82vw - 18px));
    padding-inline: max(22px, calc(50vw - var(--lod-card-width) / 2));
  }

  .prediction-card.lod-uniform:not(.add-card) {
    min-height: 100px !important;
    max-height: 100px;
    padding: 12px 14px 13px !important;
    translate: 0 calc(50% + 32px) !important;
  }

  .prediction-card.lod-uniform:not(.add-card) .prediction-title {
    margin-top: 8px !important;
    font-size: 14px !important;
  }

  .prediction-card.lod-uniform .lod-chip-badge {
    min-height: 19px;
    font-size: 8px;
  }

  .prediction-card.lod-uniform .lod-uniform-head {
    gap: 9px;
  }

  .prediction-card.lod-uniform .lod-uniform-head .prediction-date {
    font-size: 11px !important;
  }

  .prediction-card.lod-uniform .prediction-days-ahead {
    bottom: calc(100% + 43px) !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .prediction-card:not(.add-card) {
    transition: none !important;
  }
}