frontend/src/components/EngineCompatibilityMatrix.css

/* Engine Compatibility Matrix (Plan 02-04 / ENGINE-06) */

.engine-matrix {
  display: flex;
  flex-direction: column;
  gap: var(--space-3, 8px);
}

.engine-matrix--loading,
.engine-matrix--error {
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.engine-matrix__muted {
  color: var(--chrome-fg-muted, #888);
  font-size: 13px;
}

.engine-matrix__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.engine-matrix__title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--chrome-fg, currentColor);
}

.engine-matrix__table {
  width: 100%;
}

.engine-matrix__body {
  display: flex;
  flex-direction: column;
}

.engine-matrix__row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 10px;
  border-top: 1px solid var(--chrome-border, rgba(255,255,255,0.06));
  min-height: 56px;
}

.engine-matrix__row.is-off {
  opacity: 0.78;
}

.engine-matrix__cell {
  display: flex;
  align-items: center;
}

.engine-matrix__cell--name {
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  min-width: 0;
}

.engine-matrix__cell--center {
  justify-content: center;
}

.engine-matrix__cell--gpu {
  align-items: center;
}

.engine-matrix__cell--actions {
  justify-content: flex-end;
  gap: 6px;
  flex-wrap: wrap;
}

.engine-matrix__name {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 13px;
  color: var(--chrome-fg, currentColor);
}

.engine-matrix__id {
  font-family: var(--chrome-font-mono, ui-monospace, SFMono-Regular, monospace);
  font-size: 11px;
  color: var(--chrome-fg-muted, #888);
}

.engine-matrix__reason {
  font-size: 12px;
  color: var(--chrome-severity-warn, #d79921);
  display: block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.engine-matrix__hint {
  font-size: 11px;
  color: var(--chrome-fg-muted, #888);
}

.engine-matrix__last-error {
  font-size: 11px;
  color: var(--chrome-severity-err, #cc241d);
  display: block;
}

.engine-matrix__chips {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
}

.engine-matrix__chip {
  display: inline-block;
  padding: 1px 6px;
  font-size: 10px;
  font-family: var(--chrome-font-mono, ui-monospace, monospace);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 4px;
  border: 1px solid var(--chrome-border-strong, rgba(255,255,255,0.18));
  color: var(--chrome-fg-muted, #888);
  background: transparent;
  user-select: none;
}

.engine-matrix__chip--cuda {
  color: #76b900;
  border-color: color-mix(in srgb, #76b900 45%, transparent);
  background: color-mix(in srgb, #76b900 10%, transparent);
}
.engine-matrix__chip--mps {
  color: #b8b8b8;
  border-color: color-mix(in srgb, #b8b8b8 45%, transparent);
  background: color-mix(in srgb, #b8b8b8 10%, transparent);
}
.engine-matrix__chip--rocm {
  color: #ed1c24;
  border-color: color-mix(in srgb, #ed1c24 45%, transparent);
  background: color-mix(in srgb, #ed1c24 10%, transparent);
}
.engine-matrix__chip--cpu {
  /* keep default muted tone for CPU */
}

.engine-matrix__result {
  font-size: 11px;
  font-family: var(--chrome-font-mono, ui-monospace, monospace);
}

.engine-matrix__result--ok {
  color: var(--chrome-severity-ok, #98971a);
}

.engine-matrix__result--fail {
  color: var(--chrome-severity-err, #cc241d);
}

.engine-matrix__empty {
  padding: 24px;
  text-align: center;
  color: var(--chrome-fg-muted, #888);
  font-size: 13px;
}