.section-heading > div {
  position: relative;
  min-height: 3.6rem;
  padding-inline-start: 4.5rem;
}

.section-heading > div::before {
  position: absolute;
  inset: 0 auto auto 0;
  width: 3.4rem;
  height: 3.4rem;
  border: 1px solid rgb(125 245 178 / 32%);
  border-radius: .9rem;
  background: rgb(8 18 20 / 88%) var(--section-symbol) center / 2.55rem no-repeat;
  box-shadow: inset 0 0 1.4rem rgb(102 217 255 / 8%), 0 .6rem 1.8rem rgb(0 0 0 / 24%);
  content: "";
  animation: symbol-breathe 6s ease-in-out infinite;
}

[aria-labelledby="becoming-bridge-title"] { --section-symbol: url("/assets/icon-transform.svg"); }
[aria-labelledby="tournament-live-title"] { --section-symbol: url("/assets/symbol-tournament.svg"); }
[aria-labelledby="progress-title"],
[aria-labelledby="lanes-title"] { --section-symbol: url("/assets/symbol-readiness.svg"); }
[aria-labelledby="work-title"],
[aria-labelledby="queue-title"] { --section-symbol: url("/assets/symbol-work.svg"); }
[aria-labelledby="weekly-title"] { --section-symbol: url("/assets/symbol-week.svg"); }
[aria-labelledby="market-lab-title"],
[aria-labelledby="backdata-catalog-title"] { --section-symbol: url("/assets/symbol-data.svg"); }
[aria-labelledby="evidence-title"],
[aria-labelledby="method-title"] { --section-symbol: url("/assets/symbol-evidence.svg"); }
[aria-labelledby="knowledge-title"] { --section-symbol: url("/assets/symbol-knowledge.svg"); }
[aria-labelledby="operations-title"],
[aria-labelledby="runs-title"] { --section-symbol: url("/assets/symbol-operations.svg"); }
[aria-labelledby="ml-runtime-title"],
[aria-labelledby="ml-evidence-title"],
[aria-labelledby="ml-guard-title"] { --section-symbol: url("/assets/symbol-ml.svg"); }
[aria-labelledby="capacity-title"],
[aria-labelledby="workloads-title"],
[aria-labelledby="processes-title"],
[aria-labelledby="definitions-title"] { --section-symbol: url("/assets/symbol-resources.svg"); }

@keyframes symbol-breathe {
  0%, 100% { transform: translateY(0); filter: brightness(1); }
  50% { transform: translateY(-.18rem); filter: brightness(1.18); }
}

@media (prefers-reduced-motion: reduce) {
  .section-heading > div::before { animation: none; }
}

@media (max-width: 520px) {
  .section-heading > div {
    min-height: 3rem;
    padding-inline-start: 3.7rem;
  }
  .section-heading > div::before {
    width: 2.9rem;
    height: 2.9rem;
    background-size: 2.15rem;
  }
}