/* Performance — condensed to 3 tiles */
.perf {
  background: var(--bg-primary);
  border-top: 1px solid var(--line-1);
}

.perf__tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-1);
  border: 1px solid var(--line-1);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.perf__tile {
  background: var(--bg-elev-1);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.perf__tile-num {
  font-family: var(--font-mono);
  font-size: clamp(44px, 5vw, 64px);
  font-weight: 500;
  color: var(--accent-data);
  letter-spacing: -0.03em;
  line-height: 0.95;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.perf__tile-unit {
  font-size: 0.38em;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.02em;
}
.perf__tile-label {
  font-size: 13px;
  color: var(--text-heading);
  font-weight: 500;
  letter-spacing: -0.005em;
}
.perf__tile-sub {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 40ch;
}

/* Latency distribution + context cards */
.perf__detail {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 24px;
  margin-top: 28px;
}
.perf__latency {
  background: var(--bg-elev-1);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.perf__latency-head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.perf__latency-row {
  display: grid;
  grid-template-columns: 40px 1fr 72px;
  gap: 16px;
  align-items: center;
}
.perf__latency-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}
.perf__latency-track {
  height: 6px;
  background: var(--line-1);
  border-radius: 4px;
  overflow: hidden;
}
.perf__latency-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-data, #4FD1C5) 0%, var(--accent-purple) 100%);
  border-radius: 4px;
}
.perf__latency-value {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-heading);
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.perf__latency-note {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.55;
}

.perf__cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.perf__card {
  background: var(--bg-elev-1);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-lg);
  padding: 22px 26px;
}
.perf__card h3 {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.005em;
  margin: 0 0 6px;
  color: var(--text-heading);
}
.perf__card p {
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin: 0;
}

.perf__foot {
  margin: 28px 0 0;
  display: flex;
  align-items: baseline;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 12.5px;
}
.perf__foot a {
  color: var(--accent-data);
  font-weight: 500;
  text-decoration: none;
}
.perf__foot a:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.perf__foot-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

@media (max-width: 900px) {
  .perf__tiles { grid-template-columns: 1fr; }
  .perf__detail { grid-template-columns: 1fr; }
}