/* performance.html. Loaded after site.css. */

/* Performance */
.perf-status {
  display: inline-block;
  margin-top: 18px;
  padding: 5px 11px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent-text);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
}
.perf-stats {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
}
/* Three cards on the first row, two wider ones on the second. */
.stat {
  grid-column: span 2;
}
.stat:nth-child(n + 4) {
  grid-column: span 3;
}
.stat {
  display: flex;
  flex-direction: column;
  min-width: 0;
  color: inherit;
  text-decoration: none;
  padding: 26px 24px;
  border-radius: var(--radius);
  background: var(--bg-raised);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}
.stat-value {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 6px;
  font-size: clamp(36px, 4vw, 46px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.stat-value .unit {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--accent-text);
}
.stat-sub {
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent-text);
}
/* Durable tile: Felix's rate as a solid bar on a track that is the disk's
   fsync ceiling, with the ceiling marked at the right end. */
.stat-meter {
  margin-top: 14px;
}
.stat-meter-track {
  position: relative;
  display: block;
  height: 10px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--accent) 22%, transparent);
}
.stat-meter-track::after {
  content: "";
  position: absolute;
  top: -4px;
  bottom: -4px;
  right: 0;
  width: 2px;
  background: var(--text);
}
.stat-meter-track i {
  position: absolute;
  inset: 0 auto 0 0;
  width: calc(var(--v) / var(--max) * 100%);
  border-radius: 4px 0 0 4px;
  background: var(--accent);
  transform-origin: left center;
  transition: transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) 0.25s;
}
.js .stat:not(.in) .stat-meter-track i {
  transform: scaleX(0);
}
.stat-meter-keys {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
/* Latency tile: three percentiles side by side instead of one value. */
.stat-pcts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin: 0;
}
.stat-pcts > div {
  display: flex;
  flex-direction: column-reverse;
  gap: 4px;
  min-width: 0;
}
.stat-pcts dd {
  margin: 0;
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.stat-pcts dd .unit {
  margin-left: 3px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--accent-text);
}
.stat-pcts dt {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-text);
}
/* Felix against the raw disk, as prominent as the headline it explains. */
.stat-vs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 14px 0 0;
}
.stat-vs > div {
  display: flex;
  flex-direction: column-reverse;
  gap: 3px;
  min-width: 0;
}
.stat-vs dd {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.stat-vs dd .unit {
  margin-left: 3px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--accent-text);
}
.stat-vs dt {
  font-size: 12.5px;
  color: var(--muted);
}
.stat h3 {
  margin-top: 14px;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: -0.01em;
}
.stat-note {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--muted);
}
.stat-src {
  margin-top: auto;
  padding-top: 14px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-text);
}
.stat-src::after {
  content: " \2192";
}
.stat:hover,
.stat:focus-visible {
  /* Beats the site-wide a:hover underline: only the source line underlines. */
  text-decoration: none;
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}
.stat:hover .stat-src,
.stat:focus-visible .stat-src {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.perf-chart {
  margin: 16px 0 0;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--bg-raised);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}
.perf-chart figcaption h3 {
  font-size: 19px;
  font-weight: 650;
  letter-spacing: -0.018em;
}
.perf-chart figcaption p {
  margin-top: 6px;
  max-width: 68ch;
  font-size: 14.5px;
  color: var(--muted);
}
.lat-group {
  margin-top: 24px;
}
.lat-mode {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 600;
}
/* Shared by the bars and the axis so the ticks line up with the bars. */
.lat-row,
.lat-axis {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr) 112px;
  align-items: center;
  gap: 12px;
}
.lat-row + .lat-row {
  margin-top: 6px;
}
.lat-label,
.lat-val {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  white-space: nowrap;
}
.lat-val {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
/* --lo and --hi are p50 and p99 in microseconds on a 0 to 500 scale (0.5 ms).
   The solid part ends at p50, the tint at p99. */
.lat-track {
  position: relative;
  height: 14px;
  background: repeating-linear-gradient(to right, var(--line) 0 1px, transparent 1px 20%);
}
.lat-track i {
  position: absolute;
  inset: 0 auto 0 0;
  width: calc(var(--hi) / 500 * 100%);
  border-radius: 0 4px 4px 0;
  background: linear-gradient(to right, var(--accent) 0 calc(var(--lo) / var(--hi) * 100%), color-mix(in srgb, var(--accent) 40%, transparent) 0);
  transform-origin: left center;
  transition: transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) 0.25s;
}
.js .perf-chart:not(.in) .lat-track i {
  transform: scaleX(0);
}
.lat-axis {
  margin-top: 10px;
}
.lat-ticks {
  position: relative;
  height: 16px;
}
.lat-ticks b {
  position: absolute;
  left: calc(var(--t) / 500 * 100%);
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--faint);
  white-space: nowrap;
}
.lat-ticks b:first-child {
  transform: none;
}
.lat-ticks b:last-child {
  transform: translateX(-100%);
}
.perf-img img {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 20px;
}
.perf-foot {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}
@media (max-width: 960px) {
  .perf-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .stat,
  .stat:nth-child(n + 4) {
    grid-column: auto;
  }
  .stat:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
}
@media (max-width: 760px) {
  .perf-chart {
    padding: 22px;
  }
}
@media (max-width: 520px) {
  .perf-stats {
    grid-template-columns: minmax(0, 1fr);
  }
  /* The label moves above the bar so the bar keeps most of the width. */
  .lat-row,
  .lat-axis {
    grid-template-columns: minmax(0, 1fr) 104px;
    column-gap: 10px;
    row-gap: 4px;
  }
  .lat-label {
    grid-column: 1 / -1;
  }
  .lat-axis > span:first-child {
    display: none;
  }
  .lat-row + .lat-row {
    margin-top: 10px;
  }
  .lat-val {
    font-size: 12px;
  }
}