/* ============================================================
   3Powers — the nine-stage lifecycle, two human gates.
   ============================================================ */

.lifecycle { position: relative; margin-top: var(--space-12); }
.lifecycle-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(11, 1fr);
  gap: 6px;
}
.lifecycle-track::before {
  content: "";
  position: absolute;
  top: 21px;
  left: 4%; right: 4%;
  height: 2px;
  background: var(--line);
}
.stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}
.stage .dot {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--paper);
  background: var(--stage-accent, var(--ink));
  border: 3px solid var(--surface-page);
  box-shadow: 0 0 0 1px var(--line);
}
.stage .stage-name {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  line-height: 1.45;
  max-width: 92px;
}
.stage-gold { --stage-accent: var(--gold); }
.stage-slate { --stage-accent: var(--slate); }
.stage-oxblood { --stage-accent: var(--oxblood); }
.stage-ink { --stage-accent: var(--ink); }

.stage.human .dot {
  border-radius: 3px;
  transform: rotate(45deg);
  width: 36px; height: 36px;
  margin: 4px 0;
  background: var(--paper-warm);
  border: 1.5px solid var(--gold-bright);
  box-shadow: none;
  color: var(--gold);
}
.stage.human .dot span {
  transform: rotate(-45deg);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 15px;
  font-weight: 700;
}
.stage.human .stage-name { color: var(--gold); font-weight: 600; }

.lifecycle-loop {
  margin-top: var(--space-9);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.lifecycle-loop span.rule { flex: 1; border-top: 1.5px dashed #c9b98f; }
.lifecycle-loop span.lab {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.07em;
  color: var(--gold);
  text-align: center;
}

/* the three branches, as a footnote to the diagram rather than the headline */
.branch-key {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-10);
  max-width: 900px;
  margin: var(--space-16) auto 0;
  padding-top: var(--space-10);
  border-top: 1px solid var(--line);
}
.branch-key article { --tc: var(--ink); }
.branch-key article[data-branch="gold"] { --tc: var(--gold); }
.branch-key article[data-branch="slate"] { --tc: var(--slate); }
.branch-key article[data-branch="oxblood"] { --tc: var(--oxblood); }
.branch-key .bk-label {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: var(--text-badge);
  font-weight: 600;
  letter-spacing: var(--tracking-badge);
  text-transform: uppercase;
  color: var(--tc);
  margin-bottom: var(--space-3);
}
.branch-key .bk-label::before { content: ""; width: 14px; height: 14px; background: var(--tc); flex: none; }
.branch-key h3 { margin: 0 0 6px; font-size: var(--text-h3); }
.branch-key p { margin: 0; color: var(--text-muted); font-size: var(--text-small); line-height: 1.6; }

@media (prefers-reduced-motion: no-preference) {
  body[data-motion="on"] .lifecycle-track::before { transform: scaleX(0); transform-origin: left center; transition: transform 1.4s cubic-bezier(0.4, 0, 0.2, 1) 0.15s; }
  body[data-motion="on"] .lifecycle.is-in .lifecycle-track::before { transform: scaleX(1); }
}

@media (max-width: 960px) {
  .lifecycle-track { grid-template-columns: repeat(5, 1fr); row-gap: var(--space-8); }
  .lifecycle-track::before { display: none; }
  .lifecycle-loop span.rule { display: none; }
  .branch-key { grid-template-columns: 1fr; gap: var(--space-8); }
}
@media (max-width: 640px) {
  .lifecycle-track { grid-template-columns: repeat(2, 1fr); }
}