.performance-page {
  --performance-width: 1180px;
}

.performance-hero {
  padding: 70px 0 54px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(112deg, #3a2119 0, #2a1d18 42%, var(--page) 82%);
}

.performance-hero-inner {
  width: min(var(--performance-width), calc(100% - 32px));
  margin: 0 auto;
}

.performance-kicker {
  margin: 0 0 10px;
  color: var(--amber);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.performance-hero h1 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(42px, 6vw, 68px);
  font-weight: 520;
  line-height: 1.05;
}

.performance-lede {
  max-width: 850px;
  margin: 22px 0 0;
  color: #d0bfb3;
  font-size: 19px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 42px;
  border: 1px solid var(--line);
  background: var(--line);
}

.metric {
  min-width: 0;
  padding: 20px;
  background: #151615;
}

.metric strong,
.metric span {
  display: block;
}

.metric strong {
  color: var(--accent);
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 620;
  line-height: 1.15;
}

.metric span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.performance-shell {
  width: min(var(--performance-width), calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

.performance-nav {
  position: sticky;
  top: 82px;
  padding: 54px 0;
}

.performance-nav strong {
  display: block;
  margin-bottom: 13px;
  color: var(--dim);
  font-size: 12px;
  text-transform: uppercase;
}

.performance-nav a {
  padding: 6px 0;
  display: block;
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
}

.performance-nav a:hover {
  color: var(--accent);
}

.performance-content {
  min-width: 0;
  padding: 54px 0 96px;
}

.performance-section {
  margin-bottom: 72px;
  scroll-margin-top: 82px;
}

.performance-section > h2 {
  margin: 0 0 16px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--line);
  font-size: 30px;
  font-weight: 570;
}

.performance-section h3 {
  margin: 34px 0 10px;
  font-size: 19px;
}

.performance-section p,
.performance-section li {
  color: #d0c6bf;
}

.performance-section code:not(pre code) {
  padding: 2px 5px;
  border: 1px solid #413d38;
  color: var(--cyan);
  background: #1b1c1a;
}

.measurement-note {
  margin: 24px 0;
  padding: 16px 18px;
  border-left: 3px solid var(--amber);
  background: #211c18;
  color: var(--muted);
}

.measurement-note strong {
  color: var(--ink);
}

.table-wrap {
  max-width: 100%;
  margin: 22px 0;
  overflow-x: auto;
  border: 1px solid var(--line);
}

.performance-table {
  width: 100%;
  border-collapse: collapse;
  background: #131514;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.performance-table th,
.performance-table td {
  padding: 11px 13px;
  border-bottom: 1px solid #302f2c;
  text-align: right;
  white-space: nowrap;
}

.performance-table th:first-child,
.performance-table td:first-child {
  text-align: left;
}

.performance-table thead th {
  color: var(--muted);
  background: #1a1b19;
  font-size: 12px;
  font-weight: 600;
}

.performance-table tbody th {
  color: var(--ink);
  font-weight: 520;
}

.performance-table tr:last-child > * {
  border-bottom: 0;
}

.performance-table .focus-row > * {
  color: var(--accent);
  background: #1d2118;
}

.phase-line {
  margin: 24px 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
}

.phase {
  min-width: 0;
  padding: 18px;
  border-right: 1px solid var(--line);
}

.phase:last-child {
  border-right: 0;
}

.phase small,
.phase strong,
.phase span {
  display: block;
}

.phase small {
  color: var(--dim);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  text-transform: uppercase;
}

.phase strong {
  margin: 6px 0 2px;
  color: var(--cyan);
  font-size: 24px;
}

.phase span {
  color: var(--muted);
  font-size: 13px;
}

.comparison-bars {
  margin: 24px 0;
  padding: 20px;
  border: 1px solid var(--line);
  background: #131514;
}

.bar-row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) 76px;
  gap: 12px;
  align-items: center;
  margin: 10px 0;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.bar-track {
  height: 13px;
  background: #282925;
}

.bar-fill {
  width: var(--bar-width);
  height: 100%;
  background: #8c624d;
}

.bar-row.dudu .bar-fill {
  background: var(--accent);
}

.bar-row > :last-child {
  color: var(--muted);
  text-align: right;
}

.definition-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 32px;
  margin: 28px 0;
}

.definition-grid div {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.definition-grid dt {
  color: var(--ink);
  font-weight: 600;
}

.definition-grid dd {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.source-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.source-link {
  padding: 16px;
  border: 1px solid var(--line);
  text-decoration: none;
}

.source-link strong,
.source-link span {
  display: block;
}

.source-link span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 900px) {
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .performance-shell {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .performance-nav {
    position: static;
    padding: 28px 0 0;
    columns: 2;
  }

  .performance-nav strong {
    column-span: all;
  }

  .performance-content {
    padding-top: 38px;
  }
}

@media (max-width: 620px) {
  .performance-hero {
    padding: 48px 0 38px;
  }

  .metric-grid,
  .phase-line,
  .definition-grid,
  .source-links {
    grid-template-columns: 1fr;
  }

  .phase {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .phase:last-child {
    border-bottom: 0;
  }

  .performance-nav {
    columns: 1;
  }

  .bar-row {
    grid-template-columns: 62px minmax(0, 1fr) 66px;
    gap: 8px;
  }
}