/* ===========================================================
   Section 1 — Opening Hook: Two Timelines (polish)
   =========================================================== */

#opening .scrolly__viz { align-items: stretch; padding: 0 1rem; }

.op-viz {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  transition: filter 600ms var(--ease-out);
}
.op-viz.is-pinged { animation: op-ping 600ms var(--ease-out); }
@keyframes op-ping {
  0%   { filter: brightness(1); }
  20%  { filter: brightness(1.3); }
  100% { filter: brightness(1); }
}

/* Header: legend + scene readout */
.op-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
  text-transform: uppercase;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.6rem;
}
.op-legend { display: flex; gap: 1rem; align-items: center; }
.op-legend__item { display: inline-flex; align-items: center; gap: 0.4rem; }
.op-swatch {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 2px;
}
.op-readout {
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  max-width: 60%;
  min-width: 0;
}
.op-readout__title {
  font-family: var(--serif);
  font-style: normal;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  text-transform: none;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.op-readout__title em { font-style: italic; color: var(--accent); }
.op-readout__meta {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
  line-height: 1.4;
}

/* Stage holding the SVG */
.op-stage {
  flex: 1;
  min-height: 360px;
  position: relative;
  display: flex;
  flex-direction: column;
}

.op-svg {
  width: 100%;
  flex: 1;
  display: block;
  overflow: visible;
  user-select: none;
}

/* Track labels */
.op-track-label {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin: 0 0 0.35rem;
  padding: 0 0.25rem;
}
.op-track-label__name { color: var(--fg); font-weight: 600; }
.op-track-label__sub  { color: var(--fg-mute); letter-spacing: 0.1em; }
.op-track-label--bot {
  order: 99;
  margin-top: 0.5rem;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
.op-track-label--bot[data-revealed="1"] {
  opacity: 1;
  transform: none;
}

/* SVG text bits */
.op-band-label,
.op-break-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  font-weight: 600;
}
.op-tick text {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

/* Top-track blocks */
.op-block {
  transition: transform 200ms var(--ease-out), opacity 600ms var(--ease-out);
}
.op-block__num {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  pointer-events: none;
  transition: fill 200ms var(--ease-out);
}
.op-block:hover { transform: translateY(-2px); }
.op-block:hover .op-block__bg { filter: brightness(1.3); }
.op-block:hover .op-block__stroke { stroke-width: 2.5; }

.op-block.is-dim .op-block__bg { opacity: 0.22; }
.op-block.is-dim .op-block__stroke { opacity: 0.35; }
.op-block.is-dim .op-block__num { opacity: 0.25; }

.op-block.is-spotlight .op-block__stroke {
  stroke-width: 2.5;
  filter: drop-shadow(0 0 6px rgba(212, 161, 85, 0.7));
}
.op-block.is-spotlight .op-block__bg { filter: brightness(1.35); }

.op-block.is-fade-real .op-block__bg { opacity: 0.45; }
.op-block.is-fade-real .op-block__stroke { opacity: 0.6; }

.op-block.is-focused .op-block__stroke {
  stroke: var(--fg);
  stroke-width: 2.5;
}

/* Bottom-track blocks */
.op-bblock { transition: opacity 600ms var(--ease-out); }
.op-bblock:hover .op-bblock__bg { filter: brightness(1.3); }
.op-bblock:hover .op-bblock__stroke { stroke-width: 2.5; }
.op-bblock__num {
  font-family: var(--mono);
  font-weight: 600;
  pointer-events: none;
}

/* Links */
.op-link { transition: opacity 600ms var(--ease-out), stroke-width 200ms var(--ease-out); }

/* Tooltip */
.op-tip {
  position: absolute;
  pointer-events: none;
  z-index: 99;
  display: none;
  min-width: 200px;
  background: rgba(10, 13, 24, 0.96);
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  padding: 0.55rem 0.7rem;
  font-family: var(--mono);
  color: var(--fg);
  transform: translate(-50%, calc(-100% - 12px));
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}
.op-tip__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}
.op-tip__num {
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.op-tip__world {
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.15em 0.55em;
  border-radius: 99px;
  border: 1px solid currentColor;
}
.op-tip__world--dream    { color: var(--dream-blue); }
.op-tip__world--reality  { color: var(--reality-red); }
.op-tip__world--reality_memory,
.op-tip__world--coda     { color: var(--memory-gold); }

.op-tip__title {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--fg);
  margin-bottom: 0.3rem;
  line-height: 1.25;
}
.op-tip__meta {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
}
.op-tip__chrono {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--fg-mute);
  margin-top: 0.25rem;
}
.op-tip__noreal { color: var(--reality-red); font-style: italic; }

/* Reduce stage height on narrow screens */
@media (max-width: 900px) {
  .op-stage { min-height: 280px; }
  .op-readout { max-width: 100%; text-align: left; }
  .op-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}