.signal-story-page {
  --sst-surface: #111827;
  --sst-surface-2: #0f172a;
  --sst-text: #f3f4f6;
  --sst-muted: #c4cde0;
  --sst-line: rgba(158, 186, 224, 0.18);
  --sst-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  --sst-stack-gap: 0.75rem;
  color: var(--sst-text);
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  line-height: 1.45;
  max-width: 100%;
  margin: 0;
  background:
    radial-gradient(1400px 760px at 14% 18%, rgba(96, 165, 250, 0.045), transparent 66%),
    radial-gradient(1120px 640px at 82% 34%, rgba(96, 165, 250, 0.038), transparent 70%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent 26%);
}

.signal-story-page,
.signal-story-page *,
.signal-story-page *::before,
.signal-story-page *::after {
  box-sizing: border-box;
}

.signal-story-page .hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.9rem;
  padding: 0.98rem 1.08rem;
  background: linear-gradient(145deg, var(--sst-surface), var(--sst-surface-2));
  box-shadow: var(--sst-shadow);
  margin-bottom: var(--sst-stack-gap);
}

.signal-story-page .hero::before,
.signal-story-page .curve::before,
.signal-story-page .card::after,
.signal-story-page .recap::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.042), rgba(255, 255, 255, 0.014) 26%, transparent 52%);
  pointer-events: none;
  z-index: 0;
}

.signal-story-page .hero > *,
.signal-story-page .recap > * {
  position: relative;
  z-index: 1;
}

.signal-story-page .company-context {
  display: inline-flex;
  align-items: center;
  gap: 0.46rem;
  margin-bottom: 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 0.18rem 0.56rem;
  background: rgba(255, 255, 255, 0.04);
  position: relative;
  z-index: 1;
}

.signal-story-page .company-kicker {
  font-size: 0.77rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #c4cde0;
}

.signal-story-page .company-name {
  font-size: 0.94rem;
  font-weight: 700;
  color: #f3f4f6;
  letter-spacing: 0.02em;
}

.signal-story-page .hero h2 {
  margin: 0;
  font-size: clamp(1.44rem, 2.88vw, 1.82rem);
  position: relative;
  z-index: 1;
}

.signal-story-page .lede {
  margin: 0.55rem 0 0;
  color: var(--sst-muted);
  max-width: 86ch;
  font-size: 1.08rem;
  position: relative;
  z-index: 1;
}

.signal-story-page .lede-subtle {
  font-size: 0.98rem;
  color: #c4cde0;
}

.signal-story-page .lede-note {
  font-size: 1.01rem;
  color: #d2dbea;
  max-width: 84ch;
}

.signal-story-page code {
  font-family: "IBM Plex Mono", "Consolas", monospace;
  color: #d4e4ff;
}

.signal-story-page .curve {
  margin: 0 0 var(--sst-stack-gap);
  border: 1px solid var(--sst-line);
  border-radius: 0.66rem;
  background: linear-gradient(145deg, var(--sst-surface), var(--sst-surface-2));
  padding: 0.54rem 0.6rem;
  position: sticky;
  top: 10px;
  z-index: 45;
  isolation: isolate;
  box-shadow: var(--sst-shadow);
  backdrop-filter: blur(8px) saturate(1.12);
  -webkit-backdrop-filter: blur(8px) saturate(1.12);
  overflow: visible;
}

.signal-story-page .curve.at-end {
  position: static;
  top: auto;
  z-index: auto;
}

.signal-story-page .curve.at-end::after {
  display: none;
}

.signal-story-page .curve::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -34px;
  height: 34px;
  pointer-events: none;
  border-radius: 0 0 10px 10px;
  background: linear-gradient(180deg, rgba(8, 20, 34, 0.62), rgba(8, 20, 34, 0));
}

.signal-story-page .curve-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.55rem;
  margin-bottom: 0.28rem;
  font-size: 0.94rem;
  color: var(--sst-muted);
  position: relative;
  z-index: 5;
}

.signal-story-page .curve-headline {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
}

.signal-story-page .curve-title {
  color: #f3f4f6;
  font-weight: 700;
  letter-spacing: 0.01em;
  font-size: 1.03rem;
}

.signal-story-page .curve-subtitle {
  color: #c4cde0;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.signal-story-page .curve-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.72rem;
  flex-wrap: wrap;
}

.signal-story-page #curveLabel {
  color: #f3f4f6;
  font-size: 1.01rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.signal-story-page .curve-band {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 0.1rem 0.48rem;
  font-size: 0.79rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #dce9f8;
  background: rgba(255, 255, 255, 0.06);
}

.signal-story-page .curve-band.is-low {
  border-color: rgba(159, 196, 255, 0.48);
  color: #d5e8ff;
  background: rgba(159, 196, 255, 0.16);
}

.signal-story-page .curve-band.is-medium {
  border-color: rgba(208, 197, 255, 0.5);
  color: #ece3ff;
  background: rgba(208, 197, 255, 0.16);
}

.signal-story-page .curve-band.is-high {
  border-color: rgba(255, 214, 170, 0.52);
  color: #ffe7c7;
  background: rgba(255, 214, 170, 0.16);
}

.signal-story-page .curve-track {
  position: relative;
  z-index: 4;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(154, 177, 196, 0.24);
  background: linear-gradient(90deg, rgba(96, 165, 250, 0.18), rgba(34, 211, 238, 0.18));
}

.signal-story-page .curve-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: linear-gradient(90deg, rgba(96, 165, 250, 0.74), rgba(34, 211, 238, 0.82));
  transition: width 140ms ease;
}

.signal-story-page .curve-dot {
  position: absolute;
  top: 50%;
  left: 0%;
  width: 14px;
  height: 14px;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: #eef6ff;
  border: 1px solid rgba(138, 182, 255, 0.7);
  box-shadow: 0 0 12px rgba(191, 214, 255, 0.78);
  transition: left 140ms ease;
  z-index: 2;
}

.signal-story-page .timeline-shell {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
  align-items: start;
  position: relative;
  z-index: 1;
  isolation: isolate;
}

.signal-story-page .axis {
  position: relative;
  min-height: 800px;
}

.signal-story-page .axis-line {
  position: absolute;
  left: 128px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(96, 165, 250, 0.52), rgba(34, 211, 238, 0.4));
  border-radius: 2px;
}

.signal-story-page .axis-months,
.signal-story-page .axis-markers {
  position: absolute;
  inset: 0;
}

.signal-story-page .axis-month {
  position: absolute;
  left: 0;
  width: 128px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
  color: rgba(196, 205, 224, 0.76);
  font-size: 0.79rem;
  letter-spacing: 0.03em;
  transform: translateY(-50%);
  pointer-events: none;
}

.signal-story-page .axis-month::after {
  content: "";
  width: 12px;
  height: 1px;
  background: rgba(196, 205, 224, 0.3);
}

.signal-story-page .axis-marker {
  position: absolute;
  left: 0;
  width: 128px;
  transform: translateY(-50%);
  pointer-events: none;
  height: 0;
}

.signal-story-page .axis-marker .dot {
  position: absolute;
  right: 0;
  top: -5px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #eaf3ff;
  border: 1px solid rgba(158, 193, 255, 0.8);
  box-shadow: 0 0 10px rgba(191, 214, 255, 0.6);
}

.signal-story-page .cards-lane {
  position: relative;
  min-height: 800px;
}

.signal-story-page .card {
  --scroll-fade: 0.5;
  position: absolute;
  left: 0;
  right: 0;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.86rem;
  background: linear-gradient(145deg, var(--sst-surface), var(--sst-surface-2));
  transform: translateZ(0);
  opacity: calc(0.34 + (0.66 * var(--scroll-fade)));
  transition: opacity 460ms ease, border-color 320ms ease, box-shadow 320ms ease;
  box-shadow: var(--sst-shadow);
  will-change: opacity;
  overflow: hidden;
  isolation: isolate;
}

.signal-story-page .card::before {
  content: "";
  position: absolute;
  left: -16px;
  top: var(--anchor-offset, 50%);
  width: 16px;
  height: 1px;
  background: rgba(158, 193, 255, 0.68);
}

.signal-story-page .card.cluster::before {
  background: rgba(198, 184, 255, 0.78);
}

.signal-story-page .card.active {
  opacity: calc(0.82 + (0.18 * var(--scroll-fade)));
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.signal-story-page .card.displaced::before {
  background: rgba(214, 227, 255, 0.82);
  box-shadow: 0 0 6px rgba(191, 214, 255, 0.35);
}

.signal-story-page .card-content {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0.9rem 0.95rem 0.98rem;
  background: transparent;
  filter: brightness(calc(0.94 + (0.16 * var(--scroll-fade)))) saturate(calc(0.98 + (0.08 * var(--scroll-fade))));
  transition: filter 180ms ease, background 180ms ease;
}

.signal-story-page .what-head {
  margin: 0.06rem 0 0.02rem;
  font-size: clamp(1.2rem, 1.86vw, 1.46rem);
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #f3f4f6;
  text-wrap: balance;
  text-shadow:
    0 0 18px rgba(191, 214, 255, 0.24),
    0 1px 0 rgba(0, 0, 0, 0.3);
  transition: color 180ms ease, text-shadow 180ms ease, transform 180ms ease;
}

.signal-story-page .card.active .what-head {
  transform: translateY(-0.5px);
  color: #f6f9ff;
}

.signal-story-page .details {
  opacity: 1;
  margin-top: 0.22rem;
  transition: opacity 260ms ease;
}

.signal-story-page .narrative {
  margin: 0.05rem 0 0;
  font-size: 1.07rem;
  line-height: 1.56;
  color: #e6edf8;
  text-wrap: pretty;
}

.signal-story-page .topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.3rem;
}

.signal-story-page .topline .when {
  color: #f3f4f6;
  font-size: 0.96rem;
  font-weight: 700;
}

.signal-story-page .tag {
  font-size: 0.84rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0.15rem 0.5rem;
  color: #e7f2ff;
  background: rgba(255, 255, 255, 0.05);
}

.signal-story-page .tag.cluster {
  border-color: rgba(198, 184, 255, 0.56);
  background: rgba(198, 184, 255, 0.16);
  color: #e6ddff;
}

.signal-story-page .card:not(.active) .tag {
  opacity: 0.45;
  filter: grayscale(0.1);
}

.signal-story-page .recap {
  margin-top: var(--sst-stack-gap);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.9rem;
  padding: 0.98rem 1.08rem;
  color: var(--sst-text);
  background: linear-gradient(145deg, var(--sst-surface), var(--sst-surface-2));
  box-shadow: var(--sst-shadow);
  font-size: 1.03rem;
}

.signal-story-page .recap h3 {
  margin: 0;
  font-size: clamp(1.2rem, 1.8vw, 1.44rem);
  color: #f3f4f6;
}

.signal-story-page .recap-lede {
  margin: 0.42rem 0 0.54rem;
  color: var(--sst-muted);
}

.signal-story-page .recap-points {
  margin: 0;
  padding-left: 1.05rem;
  color: #dbe8f8;
}

.signal-story-page .recap-points li + li {
  margin-top: 0.28rem;
}

.signal-story-page .recap-foot {
  margin: 0.64rem 0 0;
  color: #c4cde0;
  font-size: 0.96rem;
}

@media (max-width: 820px) {
  .signal-story-page .timeline-shell {
    grid-template-columns: 118px 1fr;
  }

  .signal-story-page .axis-line {
    left: 84px;
  }

  .signal-story-page .axis-month,
  .signal-story-page .axis-marker {
    width: 84px;
  }

  .signal-story-page .axis-month .label {
    font-size: 0.77rem;
  }
}

@media (max-width: 560px) {
  .signal-story-page {
    --sst-stack-gap: 0.62rem;
  }

  .signal-story-page .curve {
    top: 6px;
    padding: 0.38rem 0.42rem;
    border-radius: 0.6rem;
    margin-bottom: var(--sst-stack-gap);
  }

  .signal-story-page .hero {
    padding: 0.66rem 0.72rem;
    border-radius: 0.78rem;
    margin-bottom: var(--sst-stack-gap);
  }

  .signal-story-page .company-context {
    margin-bottom: 0.4rem;
    padding: 0.14rem 0.44rem;
    gap: 0.35rem;
  }

  .signal-story-page .hero h2 {
    font-size: clamp(1.26rem, 7.2vw, 1.49rem);
  }

  .signal-story-page .lede {
    margin-top: 0.4rem;
    font-size: 1.04rem;
  }

  .signal-story-page .curve-head {
    margin-bottom: 0.2rem;
    gap: 0.4rem;
  }

  .signal-story-page .curve-title {
    font-size: 0.91rem;
  }

  .signal-story-page .curve-subtitle {
    font-size: 0.7rem;
  }

  .signal-story-page .curve-meta {
    gap: 0.34rem;
  }

  .signal-story-page #curveLabel {
    font-size: 0.91rem;
  }

  .signal-story-page .curve-band {
    font-size: 0.7rem;
    padding: 0.08rem 0.34rem;
  }

  .signal-story-page .timeline-shell {
    grid-template-columns: 86px 1fr;
    gap: 10px;
  }

  .signal-story-page .axis-line {
    left: 62px;
  }

  .signal-story-page .axis-month,
  .signal-story-page .axis-marker {
    width: 62px;
  }

  .signal-story-page .axis-month .label {
    font-size: 0.7rem;
  }

  .signal-story-page .card::before {
    left: -10px;
    width: 10px;
  }

  .signal-story-page .card-content {
    margin: 0.34rem;
    padding: 0.42rem;
    border-radius: 0.5rem;
  }

  .signal-story-page .what-head {
    font-size: clamp(1.1rem, 5.28vw, 1.3rem);
    line-height: 1.28;
  }

  .signal-story-page .narrative {
    font-size: 1.01rem;
    line-height: 1.58;
  }

  .signal-story-page .topline {
    margin-bottom: 0.24rem;
  }

  .signal-story-page .topline .when {
    font-size: 0.86rem;
  }

  .signal-story-page .tag {
    font-size: 0.74rem;
    padding: 0.12rem 0.38rem;
  }

  .signal-story-page .recap {
    padding: 0.66rem 0.72rem;
    border-radius: 0.78rem;
  }
}