.f-tl { padding: clamp(56px, 7vw, 96px) clamp(16px, 4vw, 48px); }
.f-tl-light {
  background: var(--brand-bg, #FCFCFC);
  color: var(--brand-ink, #333);
  --f-tl-ink: var(--brand-ink-strong, #1A1A1A);
  --f-tl-quiet: var(--f-quiet-ink);
  --f-tl-rule: color-mix(in oklab, var(--f-ink-base, #1A1A1A), transparent 86%);
  --f-tl-card: var(--brand-bg, #FCFCFC);
  --f-tl-lift:
    0 2px 6px color-mix(in oklab, var(--f-ink-base, #1A1A1A), transparent 90%),
    0 14px 32px color-mix(in oklab, var(--f-ink-base, #1A1A1A), transparent 84%);
  --f-tl-node-off: #E9E7EF;
  --f-tl-node-off-ink: color-mix(in oklab, var(--f-ink-base, #1A1A1A), transparent 65%);
  --f-tl-node-on: var(--brand-surface-dark, #1A1A1A);
  --f-tl-node-on-ink: #FFFFFF;
}
.f-tl-dark {
  background: var(--brand-surface-dark, #1A1A1A);
  color: var(--brand-ink-on-dark, #FCFCFC);
  --f-tl-ink: var(--brand-ink-on-dark, #FCFCFC);
  --f-tl-quiet: rgba(255, 255, 255, 0.7);
  --f-tl-rule: rgba(255, 255, 255, 0.18);
  --f-tl-card: color-mix(in oklab, var(--brand-surface-dark, #1A1A1A), white 6%);
  --f-tl-lift:
    0 2px 6px color-mix(in oklab, var(--brand-surface-dark, #1A1A1A), transparent 40%),
    0 14px 32px color-mix(in oklab, var(--brand-surface-dark, #1A1A1A), transparent 25%);
  --f-tl-node-off: color-mix(in oklab, var(--brand-surface-dark, #1A1A1A), white 12%);
  --f-tl-node-off-ink: rgba(255, 255, 255, 0.4);
  --f-tl-node-on: #FFFFFF;
  --f-tl-node-on-ink: var(--brand-surface-dark, #1A1A1A);
}
.f-tl-dark h2, .f-tl-dark h3 { color: inherit; }
.f-tl-inner { width: min(1080px, 100%); margin-inline: auto; }
.f-tl-head { text-align: center; margin-bottom: clamp(32px, 4.5vw, 52px); }
.f-tl-title {
  margin: 0 0 8px;
  font-size: var(--f-h2);
  color: var(--f-tl-ink);
}
.f-tl-intro { margin: 0 auto; max-width: 56ch; font-size: var(--f-text); color: var(--f-tl-quiet); }
.f-tl-quote {
  margin: clamp(20px, 2.5vw, 28px) auto 0;
  max-width: 65ch;
  color: var(--f-tl-ink);
  font-size: var(--f-text);
  font-style: italic;
}
.f-tl-quote p { margin: 0; }
.f-tl-quote cite { font-style: inherit; }
.f-tl-track { position: relative; }
.f-tl-line, .f-tl-fill {
  position: absolute;
  top: 0;
  left: 50%;
  width: 2px;
  translate: -50%;
}
.f-tl-line { top: 37px; bottom: 64px; background: var(--f-tl-rule); }
.f-tl-fill { top: 37px; height: 0; background: var(--f-tl-ink); }
.f-tl-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: clamp(28px, 4vw, 44px);
}
.f-tl-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 84px minmax(0, 1fr);
  align-items: start;
}
.f-tl-node {
  grid-column: 2;
  grid-row: 1;
  justify-self: center;
  display: grid;
  place-items: center;
  width: 58px; height: 58px;
  min-width: 0; min-height: 0;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--f-tl-node-on);
  color: var(--f-tl-node-on-ink);
  z-index: 1;
  transition: background-color 0.35s ease, color 0.35s ease,
              box-shadow 0.35s ease, scale 0.35s var(--f-ease, ease);
}
.f-tl-node svg, .f-tl-node img { display: block; width: 34px; height: auto; translate: 0 -2px; }
.f-tl-card {
  position: relative;
  padding: clamp(20px, 3vw, 30px) clamp(20px, 3vw, 32px);
  border: 2px solid var(--f-tl-rule);
  border-radius: 14px;
  background: var(--f-tl-card);
  box-shadow: 0 2px 6px transparent, 0 14px 32px transparent;
  transition: opacity 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.f-tl-l .f-tl-card { grid-column: 1; grid-row: 1; }
.f-tl-r .f-tl-card { grid-column: 3; grid-row: 1; }
.f-tl-card::after {
  content: "";
  position: absolute;
  top: 26px;
  width: 16px; height: 16px;
  rotate: 45deg;
  background: var(--f-tl-card);
  transition: border-color 0.35s ease;
}
.f-tl-l .f-tl-card::after {
  right: -10px;
  border-top: 2px solid var(--f-tl-rule);
  border-right: 2px solid var(--f-tl-rule);
}
.f-tl-r .f-tl-card::after {
  left: -10px;
  border-bottom: 2px solid var(--f-tl-rule);
  border-left: 2px solid var(--f-tl-rule);
}
.f-tl-card-title {
  margin: 0 0 10px;
  font-size: var(--f-h5);
  letter-spacing: 0.02em;
  color: var(--f-tl-ink);
}
.f-tl-body { margin: 0; max-width: 44ch; font-size: var(--f-text-small); line-height: 1.6; color: var(--f-tl-quiet); }
.f-tl-live .f-tl-item:not(.is-past) .f-tl-card { opacity: 1; }
.f-tl-live .f-tl-item:not(.is-past) .f-tl-node {
  background: var(--f-tl-node-off);
  color: var(--f-tl-node-off-ink);
}
.f-tl-live .f-tl-item.is-now .f-tl-node { scale: 1.1; }
.f-tl-live .f-tl-item.is-now .f-tl-card {
  border-color: var(--f-tl-ink);
  box-shadow: var(--f-tl-lift);
}
.f-tl-live .f-tl-item.is-now.f-tl-l .f-tl-card::after { border-color: var(--f-tl-ink); }
.f-tl-live .f-tl-item.is-now.f-tl-r .f-tl-card::after { border-color: var(--f-tl-ink); }
@media (max-width: 760px) {
  .f-tl-line, .f-tl-fill { left: 28px; translate: 0; }
  .f-tl-item { grid-template-columns: 58px minmax(0, 1fr); column-gap: 16px; }
  .f-tl-node { grid-column: 1; width: 48px; height: 48px; margin-top: 4px; }
  .f-tl-node svg, .f-tl-node img { width: 27px; }
  .f-tl-l .f-tl-card, .f-tl-r .f-tl-card { grid-column: 2; grid-row: 1; }
  .f-tl-card::after { top: 18px; }
  .f-tl-l .f-tl-card::after,
  .f-tl-r .f-tl-card::after {
    left: -10px; right: auto;
    border: 0;
    border-bottom: 2px solid var(--f-tl-rule);
    border-left: 2px solid var(--f-tl-rule);
  }
  .f-tl-list { gap: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  .f-tl-node, .f-tl-card, .f-tl-card::after { transition: none !important; }
  .f-tl-live .f-tl-item.is-now .f-tl-node { scale: none; }
  .f-tl-live .f-tl-item:not(.is-past) .f-tl-node { opacity: 1; }
}