.blueprint-bg {
  background-color: var(--color-bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: var(--blueprint-size) var(--blueprint-size);
}

.section--grid {
  position: relative;
  background-color: var(--color-bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: var(--blueprint-size) var(--blueprint-size);
}

.section--grid::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: min(100%, var(--container-max));
  height: 2px;
  transform: translateX(-50%);
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-accent) 20%,
    var(--color-accent) 80%,
    transparent
  );
  opacity: 0.6;
  pointer-events: none;
}

.tech-card {
  position: relative;
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.tech-card::before,
.tech-card::after {
  content: "";
  position: absolute;
  width: 0.75rem;
  height: 0.75rem;
  border-color: var(--color-accent);
  pointer-events: none;
}

.tech-card::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid;
  border-left: 2px solid;
}

.tech-card::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid;
  border-right: 2px solid;
}

.tech-card--accent-top {
  border-top: 4px solid var(--color-accent);
}

.metric-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--color-border-strong);
  background: var(--color-surface);
}

@media (min-width: 768px) {
  .metric-strip__item {
    flex: 1 1 0;
    min-width: 0;
    text-align: center;
  }
}

@media (max-width: 767px) {
  .metric-strip {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
    padding: var(--space-md);
    justify-content: unset;
  }

  .metric-strip__item {
    text-align: center;
  }
}

@media (max-width: 400px) {
  .metric-strip {
    grid-template-columns: 1fr;
  }
}

.metric-strip__item {
  display: grid;
  gap: 0.25rem;
}

.metric-strip__value {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent);
}

.metric-strip__label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}