/* A short introduction leads directly into the unchanged diagram. */
.system-home .system-focus-inner { padding-bottom: 28px; }
.system-home .learning-system { border-top: 0; background: var(--ink); }
.system-home .learning-system-inner { padding-top: 0; }
.system-home .learning-diagram-wrap { margin-top: 0; }

/* Homepage discovery below the learning diagram. */
.home-discovery {
  --discovery-muted: #bcc4b5;
  margin-top: clamp(56px, 7vw, 96px);
  color: var(--white);
  scroll-margin-top: 110px;
}
.home-discovery h2 {
  margin: 0;
  max-width: 28ch;
  font-size: clamp(1.75rem, 3.15vw, 2.8rem);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -.045em;
}
.home-discovery__intro {
  margin: 16px 0 0;
  max-width: 75ch;
  color: var(--discovery-muted);
  font-size: clamp(.95rem, 1.35vw, 1.12rem);
  line-height: 1.65;
}
.discovery-routes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 38px 0 0;
}
.discovery-route {
  min-width: 0;
  padding: 0 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border-left: 1px solid var(--line-dark);
}
.discovery-route:first-child { padding-left: 0; border-left: 0; }
.discovery-route:last-child { padding-right: 0; }
.discovery-route__number,
.discovery-route__path {
  font: .78rem/1.5 var(--font-geist-mono), monospace;
  color: var(--discovery-muted);
}
.discovery-route h3 {
  margin: 14px 0 12px;
  font-size: clamp(1.1rem, 1.8vw, 1.45rem);
  font-weight: 580;
  line-height: 1.3;
  letter-spacing: -.025em;
}
.discovery-route > p:not(.discovery-route__path) {
  margin: 0 0 20px;
  color: var(--discovery-muted);
  font-size: .94rem;
  line-height: 1.7;
}
.discovery-route .discovery-route__path { margin: auto 0 10px; color: var(--white); }
.home-discovery a { cursor: pointer; }
.home-discovery__link,
.home-discovery__secondary {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  min-height: 44px;
  padding-block: 8px;
  font-size: .93rem;
  line-height: 1.45;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}
.home-discovery__link { color: var(--lime); font-weight: 580; text-decoration: none; }
.home-discovery__secondary { color: var(--discovery-muted); text-decoration: underline; }
.home-discovery__link:hover { text-decoration: underline; }
.home-discovery__secondary:hover { color: var(--white); }
.home-discovery a:focus-visible { outline: 2px solid var(--lime); outline-offset: 5px; border-radius: 2px; }
.home-discovery__arrow { flex: 0 0 20px; width: 20px; height: 20px; }
.discovery-experiments,
.discovery-next { margin-top: 48px; padding-top: 44px; border-top: 1px solid var(--line-dark); }
.discovery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.discovery-experiment {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  background: #141810;
  scroll-margin-top: 110px;
}
.discovery-experiment:target { border-color: var(--lime); }
.discovery-experiment:focus-visible { outline: 2px solid var(--lime); outline-offset: 4px; }
.discovery-experiment__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px 16px 12px;
  min-height: 164px;
}
.discovery-illustration { display: block; width: 100%; max-width: 320px; height: 140px; color: #d6decc; }
.discovery-muted { color: #5e6b55; }
.discovery-accent { color: var(--lime); }
.discovery-accent-fill { fill: var(--lime); stroke: var(--lime); }
.discovery-dark { stroke: #141810; }
.discovery-experiment__body { display: flex; flex-direction: column; flex: 1; padding: 12px 22px 18px; }
.discovery-experiment h3 {
  margin: 0;
  font-size: clamp(1.1rem, 1.65vw, 1.32rem);
  font-weight: 580;
  letter-spacing: -.025em;
  line-height: 1.35;
}
.discovery-experiment__kind { margin: 12px 0 14px; color: var(--discovery-muted); font-size: .76rem; line-height: 1.6; }
.discovery-experiment__kind code { font: inherit; font-family: var(--font-geist-mono), monospace; color: var(--white); }
.discovery-experiment__description { margin: 0 0 22px; color: #d4d9cd; font-size: .93rem; line-height: 1.7; }
.discovery-experiment__actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0 16px; margin-top: auto; }
.discovery-experiment__actions .home-discovery__secondary { font-size: .82rem; }
.home-discovery__scope { margin: 18px 0 0; color: var(--discovery-muted); font-size: .8rem; line-height: 1.7; }
.discovery-next__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 32px; margin-top: 22px; }
.discovery-next__actions a { font-size: 1.04rem; }
@media (max-width: 1100px) and (min-width: 701px) {
  .discovery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .discovery-route { padding-inline: 18px; }
}
@media (max-width: 700px) {
  .discovery-routes,
  .discovery-grid { grid-template-columns: minmax(0, 1fr); }
  .discovery-routes { margin-top: 26px; }
  .discovery-route,
  .discovery-route:first-child,
  .discovery-route:last-child { padding: 24px 0; border-left: 0; border-bottom: 1px solid var(--line-dark); }
  .discovery-route:first-child { padding-top: 0; }
  .discovery-route:last-child { border-bottom: 0; padding-bottom: 0; }
  .discovery-route > p:not(.discovery-route__path) { margin-bottom: 14px; }
  .discovery-experiments,
  .discovery-next { margin-top: 36px; padding-top: 32px; }
  .discovery-experiment__visual { min-height: 148px; padding-top: 12px; }
  .discovery-experiment__body { padding: 8px 20px 16px; }
  .discovery-next__actions { flex-direction: column; align-items: flex-start; gap: 4px; }
}