/* Vertical timeline view — tokens from styles/tokens.css */

.timeline-view:not([hidden]) {
  display: flex;
  flex-direction: column;
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  min-height: min(70dvh, 28rem);
  width: 100%;
}

.timeline-view[hidden] {
  display: none !important;
}

.timeline-scroller {
  position: relative;
  flex: 1 1 auto;
  min-height: 16rem;
  max-height: calc(100dvh - 11rem);
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: contain;
  touch-action: pan-y;
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  background: color-mix(in srgb, var(--glass-bg) 80%, transparent);
  outline: none;
}

.timeline-scroller:focus-visible {
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.timeline-spacer {
  width: 1px;
  pointer-events: none;
}

.timeline-layer {
  position: absolute;
  inset: 0 auto 0 0;
  width: 100%;
  pointer-events: none;
}

.timeline-track {
  position: absolute;
  top: 0;
  left: 1.35rem;
  width: 2px;
  background: color-mix(in srgb, var(--accent) 45%, var(--glass-border));
  border-radius: 2px;
  pointer-events: none;
}

.timeline-now,
.timeline-marker,
.timeline-gap,
.timeline-tick {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  will-change: transform;
}

.timeline-now {
  height: 0;
  pointer-events: none;
  z-index: 4;
}

.timeline-now::before {
  content: '';
  position: absolute;
  left: 0.95rem;
  top: -6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-dim);
}

.timeline-now-label {
  position: absolute;
  left: 2.15rem;
  top: -0.7rem;
  padding: 0.08rem 0.35rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg-1) 88%, var(--glass-bg));
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.timeline-marker {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  margin: 0;
  padding: 0.35rem 0.6rem 0.35rem 2.35rem;
  min-height: 44px;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  z-index: 2;
}

.timeline-marker::before {
  content: '';
  position: absolute;
  left: 1.05rem;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--event-color, var(--accent));
  box-shadow: 0 0 10px color-mix(in srgb, var(--event-color, var(--accent)) 55%, transparent);
}

.timeline-marker:hover,
.timeline-marker:focus-visible {
  color: var(--text);
}

.timeline-marker:hover::before,
.timeline-marker:focus-visible::before {
  box-shadow: 0 0 16px color-mix(in srgb, var(--event-color, var(--accent)) 80%, transparent);
}

.timeline-marker-title-row,
.timeline-marker-stack-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  width: 100%;
  max-width: min(100%, 26rem);
}

.timeline-marker-title {
  font-weight: 600;
  font-size: 0.92rem;
  flex: 1 1 auto;
  min-width: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.timeline-marker-date {
  flex: 0 0 auto;
  margin-left: auto;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
}

.timeline-marker.is-cluster {
  background: color-mix(in srgb, var(--glass-bg) 88%, transparent);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding-top: 0.4rem;
  padding-bottom: 0.4rem;
}

.timeline-marker.is-cluster:hover::before,
.timeline-marker.is-cluster:focus-visible::before {
  box-shadow:
    0 5px 0 -1px color-mix(in srgb, var(--event-color, var(--accent)) 75%, white),
    0 9px 0 -3px color-mix(in srgb, var(--event-color, var(--accent)) 45%, white),
    0 0 16px color-mix(in srgb, var(--event-color, var(--accent)) 80%, transparent);
}

.timeline-marker.is-cluster .timeline-marker-title {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  -webkit-line-clamp: 1;
  line-clamp: 1;
}

.timeline-marker-stack {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  width: 100%;
  max-width: min(100%, 26rem);
}

.timeline-marker-stack-item {
  font-weight: 600;
  font-size: 0.88rem;
}

.timeline-marker-stack-name {
  flex: 1 1 auto;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.timeline-marker-emoji,
.timeline-chooser-emoji,
.fluent-emoji-host {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  line-height: 1;
  font-size: 1.15rem;
}

.timeline-marker-emoji .fluent-emoji,
.timeline-chooser-emoji .fluent-emoji {
  width: 1.2rem;
  height: 1.2rem;
}

.timeline-marker-stack-item.is-more {
  font-weight: 500;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.timeline-marker-cue {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.timeline-marker-badges {
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

.timeline-gap {
  pointer-events: none;
  display: flex;
  align-items: center;
  padding-left: 2.15rem;
  z-index: 1;
}

.timeline-gap-chip {
  display: inline-block;
  max-width: calc(100% - 2.5rem);
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: color-mix(in srgb, var(--bg-1) 82%, var(--glass-bg));
  color: var(--text-muted);
  font-size: 0.68rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.timeline-gap.is-void .timeline-gap-chip {
  border-style: dashed;
  color: var(--text);
}

.timeline-tick {
  pointer-events: none;
  height: 0;
  z-index: 1;
}

.timeline-tick-line {
  position: absolute;
  left: 0.45rem;
  right: 0.6rem;
  top: 0;
  height: 0;
  border-top: 1px solid color-mix(in srgb, var(--text) 28%, transparent);
}

.timeline-tick.is-year .timeline-tick-line {
  border-top-width: 2px;
  border-top-style: solid;
  border-top-color: color-mix(in srgb, var(--text) 42%, transparent);
}

.timeline-tick.is-month .timeline-tick-line {
  left: 1.15rem;
  right: 1.1rem;
  border-top-width: 1px;
  border-top-style: dashed;
  border-top-color: color-mix(in srgb, var(--text-muted) 55%, transparent);
}

.timeline-tick-label {
  position: absolute;
  left: 2.15rem;
  top: 0.12rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  opacity: 0.9;
}

.timeline-tick.is-month .timeline-tick-label {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  opacity: 0.75;
}

.timeline-tick-label[hidden] {
  display: none !important;
}

.timeline-fab {
  position: absolute;
  right: max(0.75rem, var(--safe-right));
  bottom: max(0.75rem, var(--safe-bottom));
  z-index: 6;
  min-height: 44px;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(60, 240, 255, 0.45);
  background: linear-gradient(135deg, rgba(60, 240, 255, 0.22), rgba(91, 140, 255, 0.16));
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 0 16px var(--accent-dim);
}

.timeline-fab:hover {
  border-color: var(--accent);
}

.timeline-fab[hidden] {
  display: none !important;
}

.timeline-chooser {
  position: absolute;
  left: 2.2rem;
  z-index: 8;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 10rem;
  max-width: min(18rem, calc(100% - 3rem));
  padding: 0.35rem;
}

.timeline-chooser-item {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  padding: 0.45rem 0.55rem;
  min-height: 44px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.timeline-chooser-item:hover,
.timeline-chooser-item:focus-visible {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  .timeline-now::before {
    box-shadow: none;
  }
}

@media (max-width: 720px) {
  .timeline-view:not([hidden]) {
    min-height: 12rem;
  }

  body.is-timeline-view .timeline-scroller {
    max-height: calc(100dvh - var(--mobile-footer-stack, 7.5rem) - 1.25rem);
    min-height: 12rem;
    border-radius: 12px;
  }

  body.is-timeline-view .timeline-fab {
    display: none !important;
  }
}