.tech-diagram,
.router {
  overflow: hidden;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.tech-diagram {
  min-height: 29rem;
  display: grid;
  place-items: center;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  background: var(--color-surface);
}

.flow-row {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr minmax(5rem, 0.7fr) 1fr;
  align-items: center;
}

.flow-node {
  min-height: 8rem;
  display: grid;
  align-content: center;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: var(--color-ink);
  color: var(--color-on-dark);
  text-align: center;
}

.flow-node strong,
.flow-node span,
.outside-path strong,
.outside-path span {
  display: block;
}

.flow-node span {
  margin-top: 0.35rem;
  color: color-mix(in oklch, var(--color-on-dark) 62%, transparent);
  font-size: 0.72rem;
}

.flow-arrow {
  position: relative;
  height: 2px;
  background: var(--color-ocean);
}

.flow-arrow::before,
.flow-arrow::after {
  position: absolute;
  top: -0.27rem;
  width: 0.55rem;
  height: 0.55rem;
  border-top: 2px solid var(--color-ocean);
  border-right: 2px solid var(--color-ocean);
  content: "";
}

.flow-arrow::before {
  left: 0;
  transform: rotate(-135deg);
}

.flow-arrow::after {
  right: 0;
  transform: rotate(45deg);
}

.flow-arrow span {
  position: absolute;
  top: 0.8rem;
  width: 100%;
  color: var(--color-ink-muted);
  font-size: 0.62rem;
  font-weight: 700;
  text-align: center;
}

.link-flow {
  grid-template-rows: 1fr auto;
  gap: 2.5rem;
  background: radial-gradient(circle at 50% 45%, var(--color-ocean-soft), var(--color-surface));
}

.outside-path {
  padding: 0.75rem 1rem;
  border: 1px dashed var(--color-rule);
  border-radius: var(--radius-sm);
  color: var(--color-ink-muted);
  text-align: center;
}

.outside-path span {
  font-size: 0.68rem;
}

.pipeline {
  width: 100%;
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pipeline li {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  align-items: center;
  gap: 0.15rem 0.8rem;
  padding: 0.85rem;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper);
}

.pipeline b {
  grid-row: 1 / 3;
  width: 2.2rem;
  height: 2.2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--color-ocean-dark);
  color: var(--color-on-dark);
}

.pipeline span {
  color: var(--color-ink-muted);
  font-size: 0.72rem;
}

.rag-flow {
  align-content: center;
  gap: 0.8rem;
  background: var(--color-ink);
  color: var(--color-on-dark);
}

.rag-stage,
.rag-output {
  width: min(100%, 23rem);
  padding: 1rem;
  border: 1px solid color-mix(in oklch, var(--color-on-dark) 18%, transparent);
  border-radius: var(--radius-sm);
  text-align: center;
}

.rag-stage strong,
.rag-stage span,
.rag-output strong,
.rag-output span {
  display: block;
}

.rag-stage span,
.rag-output span {
  margin-top: 0.25rem;
  color: color-mix(in oklch, var(--color-on-dark) 58%, transparent);
  font-size: 0.68rem;
}

.rag-process {
  width: min(100%, 25rem);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.35rem;
}

.rag-process span {
  padding: 0.5rem 0.2rem;
  border-radius: 99rem;
  background: color-mix(in oklch, var(--color-ocean) 32%, transparent);
  font-size: 0.62rem;
  text-align: center;
}

.rag-store {
  border-color: var(--color-coral);
}

.rag-output {
  background: var(--color-ocean-dark);
}

.router {
  align-self: start;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  background: color-mix(in oklch, var(--color-ink) 55%, var(--color-plum));
}

.router-input,
.router-core {
  width: min(100%, 22rem);
  margin-inline: auto;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  text-align: center;
}

.router-input {
  border: 1px solid color-mix(in oklch, var(--color-on-dark) 18%, transparent);
}

.router-input::after {
  display: block;
  height: 2rem;
  border-left: 1px solid var(--color-coral);
  content: "";
  transform: translate(50%, 0.85rem);
}

.router-core {
  background: var(--color-coral);
  color: var(--color-ink);
}

.router-core strong,
.router-core span {
  display: block;
}

.router-core span {
  margin-top: 0.25rem;
  font-size: 0.68rem;
}

.router-lanes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
  margin-top: 2rem;
}

.router-lanes span {
  padding: 0.45rem 0.65rem;
  border: 1px solid color-mix(in oklch, var(--color-on-dark) 18%, transparent);
  border-radius: 99rem;
  color: color-mix(in oklch, var(--color-on-dark) 82%, transparent);
  font-size: 0.68rem;
}

@media (max-width: 34rem) {
  .tech-diagram {
    min-height: 25rem;
    padding-inline: 1rem;
  }

  .flow-row {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .flow-arrow {
    width: 4rem;
    justify-self: center;
    transform: rotate(90deg);
  }

  .rag-process {
    grid-template-columns: 1fr;
  }
}