/* Timelineview block — claude theme. Plain CSS only (no Tailwind utilities,
   so tailwind-compiled.css does not need rebuilding).

   ONE set of entry DOM drives two layouts:
   - default (no JS / reduced-motion / non-JS crawlers): semantic static card grid
   - .timelineview--active (timelineview.js initialised): pinned horizontal-rail playhead */

/* position:sticky needs no scrolling-container ancestor. Same rationale as
   scroll-story — see .cursor/docs/scrollytelling-block-howto.md. */
.wrap.overflow-x-hidden:has(.timelineview) {
  overflow-x: clip;
}

.timelineview {
  position: relative;
  width: 100vw;
  margin-left: calc(-50vw + 50%);
}

/* ============================================================
   DEFAULT — semantic static card grid (no JS / crawlers).
   Each entry visible at once, normal flow, single copy of text.
   ============================================================ */

.timelineview__rail { display: none; }

.timelineview__overlay {
  max-width: 80rem;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.timelineview__header { margin-bottom: 2.5rem; }

.timelineview__eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #2c0e6f;
}

.timelineview__title {
  margin: 0;
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.15;
  color: #1a1a2e;
}

.timelineview__intro {
  margin: 0.75rem 0 0;
  max-width: 48rem;
  font-size: 1.05rem;
  line-height: 1.6;
  color: #4b5563;
}

.timelineview__entries {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) { .timelineview__entries { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .timelineview__entries { grid-template-columns: repeat(4, 1fr); } }

.timelineview__entry {
  padding: 1.5rem;
  background: #fff;
  border: 1px solid rgba(180, 167, 214, 0.25);
  border-radius: 1rem;
}

.timelineview__year {
  font-size: 2rem;
  font-weight: 800;
  color: #2c0e6f;
  line-height: 1;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.timelineview__label {
  display: inline-block;
  margin: 0 0 0.85rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #2c0e6f;
  background: rgba(180, 167, 214, 0.25);
  border-radius: 999px;
}

.timelineview__entry-title {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.3;
  color: #1a1a2e;
}

.timelineview__entry-desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.55;
  color: #6b7280;
}

.timelineview__cta { margin-top: 2.5rem; }

.timelineview__cta-link {
  display: inline-flex;
  align-items: center;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  background: #2c0e6f;
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s ease;
}
.timelineview__cta-link:hover { background: #3d1a9b; }

/* ============================================================
   ACTIVE — pinned horizontal-rail playhead (timelineview.js initialised).
   ============================================================ */

.timelineview--active {
  height: var(--ss-h, 320vh);
}

.timelineview--active .timelineview__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a2e 0%, #2c0e6f 60%, #3d1a9b 100%);
}

.timelineview--active .timelineview__overlay {
  position: absolute;
  inset: 0;
  max-width: none;
  margin: 0;
  padding: 6vh 6vw 4vh;
  display: flex;
  flex-direction: column;
  color: #fff;
}

.timelineview--active .timelineview__header {
  flex: 0 0 auto;
  margin-bottom: 1.5rem;
  max-width: 56rem;
}
.timelineview--active .timelineview__eyebrow { color: #b4a7d6; }
.timelineview--active .timelineview__title { color: #fff; }
.timelineview--active .timelineview__intro { display: none; }

.timelineview--active .timelineview__entries {
  display: block;
  position: relative;
  flex: 1 1 auto;
  margin: 0;
  min-height: 14rem;
}

.timelineview--active .timelineview__entry {
  position: absolute;
  inset: 0;
  padding: 0;
  background: none;
  border: 0;
  border-radius: 0;
  max-width: 44rem;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.timelineview--active .timelineview__year {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 900;
  color: #fff;
  margin-bottom: 0.25rem;
  letter-spacing: -0.04em;
  line-height: 1;
}

.timelineview--active .timelineview__label {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  margin-bottom: 1rem;
}

.timelineview--active .timelineview__entry-title {
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  margin: 0 0 0.6rem;
}

.timelineview--active .timelineview__entry-desc {
  font-size: clamp(0.95rem, 1.3vw, 1.1rem);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  max-width: 42rem;
}

.timelineview--active .timelineview__rail {
  display: block;
  position: relative;
  flex: 0 0 auto;
  height: 4.5rem;
  margin: 0 auto;
  width: 100%;
  max-width: 60rem;
}

.timelineview__rail-track {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-50%);
}

.timelineview__rail-fill {
  position: absolute;
  left: 0;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, #b4a7d6 0%, #fff 100%);
  transform: translateY(-50%);
  width: var(--playhead-x, 0%);
  transition: width 0.08s linear;
}

.timelineview__rail-dot {
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transform: translate(-50%, -50%);
  transition: transform 0.2s ease, background 0.2s ease;
  /* button reset (dots are <button> for click-to-jump) */
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  padding: 0;
  margin: 0;
  font: inherit;
  cursor: pointer;
}
.timelineview__rail-dot:hover { background: rgba(255, 255, 255, 0.65); }
.timelineview__rail-dot:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 4px;
}

.timelineview__rail-dot.is-active {
  background: #fff;
  transform: translate(-50%, -50%) scale(1.35);
}

.timelineview__rail-year {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.65);
  white-space: nowrap;
}

.timelineview__rail-playhead {
  position: absolute;
  top: 50%;
  left: var(--playhead-x, 0%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.12), 0 4px 18px rgba(180, 167, 214, 0.55);
  transform: translate(-50%, -50%);
  transition: left 0.08s linear;
  pointer-events: none;
}

.timelineview--active .timelineview__cta {
  flex: 0 0 auto;
  margin-top: 1.25rem;
}

.timelineview--active .timelineview__cta-link {
  background: rgba(255, 255, 255, 0.95);
  color: #2c0e6f;
}
.timelineview--active .timelineview__cta-link:hover { background: #fff; }

/* Mobile: shorter scroll budget, tighter padding */
@media (max-width: 768px) {
  .timelineview--active { height: var(--ss-h-mobile, 240vh); }
  .timelineview--active .timelineview__overlay { padding: 5vh 6vw 4vh; }
  .timelineview--active .timelineview__rail { height: 3.5rem; max-width: 100%; }
  .timelineview__rail-year { font-size: 0.62rem; }
}