.model-performance { min-width: 0; }
.performance-provider { display: inline-block; margin: 0; color: var(--green); font-size: 12px; font-weight: 650; }
.performance-periods { flex-shrink: 0; }
.performance-periods button { min-height: 36px; white-space: nowrap; }
.performance-status { min-height: 20px; margin: 12px 0 8px; color: var(--muted); font-size: 12px; }
.performance-models { display: flex; flex-wrap: wrap; gap: 6px; border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.performance-model { appearance: none; display: inline-flex; align-items: center; gap: 7px; border: 1px solid transparent; border-radius: 8px; padding: 8px 12px; background: transparent; color: var(--muted); cursor: pointer; font: inherit; font-size: 13px; }
.performance-model-icon { width: 18px; height: 18px; }
.performance-model[aria-selected=true] { background: var(--surface-raised); border-color: var(--line); color: var(--ink); font-weight: 650; }
.performance-model-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 20px 0 12px; }
.performance-model-heading h3 { margin: 0; font-size: 21px; }
.performance-model-identity { display: inline-flex; align-items: center; gap: 9px; }
.performance-model-identity .performance-model-icon { width: 22px; height: 22px; }
.performance-model-heading span { color: var(--muted); font-size: 12px; }
.performance-model-identity > span { color: var(--ink); font-size: inherit; }
.performance-card { border: 1px solid var(--line); border-radius: 14px; background: var(--surface-raised); padding: 20px 22px 14px; margin-bottom: 16px; overflow: visible; }
.performance-card-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 14px; }
.performance-card h4 { margin: 0; font-size: 20px; letter-spacing: -.02em; }
.performance-unit { margin: 5px 0 0; color: var(--muted); font-size: 13px; }
.performance-method-note { max-width: 65ch; margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.performance-plot svg { display: block; width: 100%; height: auto; overflow: visible; }
.performance-grid { stroke: var(--line); stroke-width: 1; }
.performance-axis { fill: var(--muted); font: 13px var(--sans); }
/* The tooltip floats over the plot; no empty paragraph reserves chart space. */
.performance-plot { position: relative; }
.performance-legend { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 18px; color: var(--muted); font-size: 12px; padding-top: 2px; }
.performance-legend-item { display: inline-flex; align-items: center; gap: 7px; }
.performance-legend-item svg { flex: 0 0 auto; }
.performance-axis-line { stroke: var(--muted); stroke-width: 1; opacity: .6; }
.performance-date-grid { opacity: .55; }
.performance-tooltip { position: absolute; z-index: 4; left: var(--performance-tooltip-x); top: var(--performance-tooltip-y); width: 260px; max-width: calc(100% - 12px); padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--surface-raised); color: var(--ink); box-shadow: var(--shadow-card); pointer-events: none; font-size: 12px; }
.performance-tooltip-before.performance-tooltip-above { transform: translate(calc(-100% - 12px), calc(-100% - 12px)); }
.performance-tooltip-after.performance-tooltip-above { transform: translate(12px, calc(-100% - 12px)); }
.performance-tooltip-before.performance-tooltip-below { transform: translate(calc(-100% - 12px), 12px); }
.performance-tooltip-after.performance-tooltip-below { transform: translate(12px, 12px); }
.performance-card:has(.performance-tooltip:not([hidden])) { position: relative; z-index: 3; }
.performance-tooltip[hidden] { display: none; }
.performance-tooltip-date { display: block; margin-bottom: 8px; font-size: 12px; color: var(--muted); }
.performance-tooltip-row { display: grid; grid-template-columns: 1fr auto; gap: 5px 12px; }
.performance-tooltip-row + .performance-tooltip-row { border-top: 1px solid var(--line); margin-top: 10px; padding-top: 10px; }
.performance-tooltip-value { font-size: 16px; white-space: nowrap; }
.performance-tooltip-detail { grid-column: 1 / -1; color: var(--muted); font-size: 11px; line-height: 1.5; }
.performance-tooltip-percentiles { grid-column: 1 / -1; display: grid; grid-template-columns: auto 1fr; gap: 3px 12px; padding: 6px 0 2px; color: var(--muted); }
.performance-tooltip-percentiles strong { color: var(--ink); text-align: right; font-weight: 650; }
.performance-tooltip p { margin: 0; }
.performance-highlight { pointer-events: none; }
.performance-point { cursor: default; }
.performance-percentile-band { pointer-events: none; }
.performance-percentile-line { stroke-width: 1.15; opacity: .42; pointer-events: none; }
.performance-percentile-line-p10, .performance-percentile-line-p90 { stroke-dasharray: 3 4; opacity: .34; }
.performance-percentile-line-p25, .performance-percentile-line-p75 { opacity: .5; }
.performance-median-line { stroke-width: 2.8; stroke-linecap: round; stroke-linejoin: round; pointer-events: none; }
.performance-median-line-gap { stroke-width: 1.8; stroke-dasharray: 5 6; opacity: .48; }
.performance-percentile-range { stroke-width: 2; opacity: .18; pointer-events: none; }
.performance-quartile-range { stroke-width: 4; opacity: .24; pointer-events: none; }
.performance-endpoint-leader { stroke-width: 1; opacity: .28; pointer-events: none; }
.performance-endpoint-dot { pointer-events: none; }
.performance-endpoint-label { font: 10px var(--sans); opacity: .82; pointer-events: none; }
.performance-endpoint-label-median { font-weight: 750; opacity: 1; }
.performance-empty { min-height: 140px; display: flex; align-items: center; justify-content: center; text-align: center; color: var(--muted); font-size: 14px; padding: 20px; }
.performance-details { border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.performance-details summary { cursor: pointer; padding: 14px 0; color: var(--ink); }
.performance-details p { max-width: 80ch; line-height: 1.65; margin: 0 0 16px; }
.performance-model:focus-visible, .performance-point:focus-visible, .performance-details summary:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
@media (max-width: 720px) {
  .performance-periods { align-self: flex-start; }
  .performance-card { padding: 16px 12px 12px; }
  .performance-card-heading { flex-direction: column; gap: 8px; }
  .performance-legend { justify-content: flex-start; }
  .performance-model-heading { align-items: flex-start; flex-direction: column; gap: 5px; }
  .performance-axis { font-size: 15px; }
}
@media (max-width: 480px) {
  .performance-tooltip { position: relative; left: auto; right: auto; top: auto; width: 100%; max-width: none; margin-top: 8px; transform: none !important; }
}

.performance-cursor { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 4 4; opacity: .75; pointer-events: none; }

html[data-theme="dark"] .performance-grid { stroke: rgba(245, 241, 232, .1); }
html[data-theme="dark"] .performance-axis-line { opacity: .42; }

/* Shared dashboard alignment. This block comes after the feature's legacy
   rules so the model page follows the dashboard contract when stylesheets are
   loaded in their existing order. */
.model-performance .performance-provider {
  margin: 0;
  color: var(--green);
  font-size: .75rem;
  font-weight: var(--weight-semibold, 700);
}
.model-performance .performance-status {
  min-height: 1.5em;
  margin: var(--space-3, 12px) 0 var(--space-2, 8px);
  font-size: .75rem;
  line-height: 1.45;
}
.model-performance .performance-status[data-state="loading"],
.model-performance .performance-status[data-state="updating"] { color: var(--blue); }
.model-performance .performance-status[data-state="error"],
.model-performance .performance-status[data-state="cancelled"] { color: var(--rust); }

.model-performance .performance-models {
  align-items: stretch;
  gap: var(--space-1, 4px);
  margin: var(--space-4, 16px) 0 var(--space-5, 20px);
  padding: 0;
  border-bottom: 1px solid var(--line);
}
.model-performance .performance-model {
  min-width: var(--hit-target, 24px);
  min-height: 40px;
  margin: 0;
  padding: .5rem .72rem;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: var(--radius-xs, 6px) var(--radius-xs, 6px) 0 0;
  font-size: .76rem;
  font-weight: var(--weight-semibold, 700);
  transition: background-color .12s ease, border-color .12s ease, color .12s ease;
}
.model-performance .performance-model:hover:not(:disabled) { color: var(--ink); background: var(--surface-quiet); }
.model-performance .performance-model[aria-selected="true"] {
  color: var(--ink);
  border-bottom-color: var(--green);
  background: var(--green-soft);
}
.model-performance .performance-model-heading {
  gap: var(--space-3, 12px);
  padding: var(--space-4, 16px) 0 var(--space-3, 12px);
}
.model-performance .performance-model-heading h3 { font-size: 1.32rem; }
.model-performance .performance-model-heading > span { font-size: .75rem; }

.model-performance .performance-actions { margin: var(--space-3, 12px) 0; gap: var(--space-2, 8px) var(--space-3, 12px); }
.model-performance .performance-actions .performance-status { margin: 0; }
.model-performance .performance-status[data-state="cancelled"] { color: var(--muted); }
.model-performance .performance-status[data-state="stale"],
.model-performance .performance-unit[data-state="partial"] { color: var(--amber); }
/* Secondary timestamps and standalone ranges remain readable without nested cards. */
.model-performance .performance-evidence {
  display: flex; flex-wrap: wrap; align-items: baseline;
  gap: var(--space-2, 8px) var(--space-4, 16px);
  margin: var(--space-2, 8px) 0; padding: 0; border: 0;
  border-radius: 0; background: transparent; box-shadow: none;
  color: var(--muted); font-size: .74rem; line-height: 1.5;
}
.model-performance .performance-evidence-row {
  display: flex; flex-wrap: wrap; align-items: baseline;
  gap: var(--space-2, 8px); min-width: 0;
}
.model-performance .performance-evidence .performance-evidence-label { font-size: .74rem; font-weight: 400; letter-spacing: 0; text-transform: none; }
.model-performance .performance-evidence-value { margin: 0; font-size: .74rem; font-variant-numeric: tabular-nums; }
.model-performance .performance-evidence-row[data-state="stale"] { color: var(--amber); }
.model-performance .performance-evidence-row[data-state="error"] { color: var(--rust); }

.model-performance .performance-card { margin-bottom: var(--space-4, 16px); }
.model-performance .performance-unit { margin: var(--space-1, 4px) 0 0; font-size: .76rem; line-height: 1.5; }
.model-performance .performance-legend { justify-content: flex-start; padding: 0; margin-bottom: var(--space-4, 16px); gap: var(--space-2, 8px) var(--space-4, 16px); font-size: .68rem; line-height: 1.4; }
.model-performance .performance-empty {
  display: grid;
  place-items: center;
  min-height: 220px;
  margin: 0;
  padding: var(--space-7, 32px) var(--space-5, 20px);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm, 10px);
  background: var(--surface-quiet);
  font-size: .78rem;
  line-height: 1.5;
}

.model-performance .performance-details {
  margin-top: var(--space-3, 12px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md, 14px);
  background: var(--surface);
  overflow: hidden;
}
.model-performance .performance-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4, 16px);
  min-height: var(--hit-target, 24px);
  padding: 8px var(--space-4, 16px);
  font-weight: var(--weight-semibold, 700);
  list-style: none;
}
.model-performance .performance-details summary::-webkit-details-marker { display: none; }
.model-performance .performance-details summary::after { color: var(--green); content: "+"; font-size: 1.15rem; font-weight: var(--weight-regular, 400); line-height: 1; }
.model-performance .performance-details[open] summary { border-bottom: 1px solid var(--line); }
.model-performance .performance-details[open] summary::after { content: "−"; }
.model-performance .performance-details p { margin: 0; padding: 0 var(--pad-card, 24px) var(--space-4, 16px); line-height: 1.6; }
.model-performance .performance-details p:first-of-type { padding-top: var(--space-4, 16px); }

@media (max-width: 720px) {
  .model-performance .performance-card { padding: var(--space-4, 16px); }
  .model-performance .performance-evidence-row { flex-basis: 100%; }
}
@media (max-width: 480px) {
  .model-performance .performance-details summary,
  .model-performance .performance-details p { padding-inline: var(--space-4, 16px); }
}
@media (prefers-reduced-motion: reduce) {
  .model-performance .performance-model { transition: none; }
}

.performance-mode-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin-top: 18px; }
.performance-modes { flex-shrink: 0; }
.performance-modes button { min-height: 36px; min-width: 80px; }
.performance-mode-note { color: var(--muted); font-size: 12px; line-height: 1.5; margin: 0; }