.ops-feature-charts {
  display: grid;
  gap: 22px;
  margin-bottom: 24px;
  min-width: 0;
}
.flow-card {
  border: 1px solid var(--ui-line);
  background: var(--ui-card);
  border-radius: 20px;
  padding: 24px;
  min-width: 0;
  scroll-margin-top: 22px;
  color: var(--ui-text);
}
.flow-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}
.flow-heading h3 {
  font-size: 23px !important;
  margin: 6px 0 0 !important;
  letter-spacing: -0.6px;
}
.flow-metrics {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr;
  gap: 18px;
  margin-bottom: 12px;
}
.flow-metric {
  border-left: 1px solid var(--ui-line);
  padding-left: 20px;
  min-width: 0;
}
.flow-metric:first-child {
  border: 0;
  padding-left: 0;
}
.flow-metric > span {
  display: block;
  color: var(--ui-muted);
  font-size: 12px;
  margin-bottom: 8px;
}
.flow-metric strong {
  font-size: 27px;
  font-weight: 620;
  letter-spacing: -1px;
  font-variant-numeric: tabular-nums;
  display: block;
}
.flow-metric small {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--ui-muted);
}
.flow-plot {
  position: relative;
  min-height: 150px;
  cursor: crosshair;
}
.flow-plot:empty {
  display: none;
}
.flow-plot svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.flow-plot svg text {
  fill: var(--ui-muted);
  font:
    12px -apple-system,
    sans-serif;
}
.flow-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}
.flow-controls input[type='range'] {
  flex: 1;
  min-width: 80px;
  width: 100%;
  accent-color: var(--ui-focus);
  height: 44px;
}
.flow-controls button,
.flow-legend button,
#flow-map-replay button {
  border: 1px solid var(--ui-line);
  border-radius: 10px;
  min-height: 40px;
  padding: 8px 13px;
  color: var(--ui-text);
  background: var(--ui-surface);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}
.flow-controls button:disabled {
  opacity: 0.4;
  cursor: default;
}

.flow-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.flow-legend button {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  padding: 7px 10px;
  min-height: 34px;
  background: transparent;
}

.flow-legend i {
  height: 8px;
  width: 8px;
  border-radius: 50%;
  background: var(--flow-line);
}
.flow-legend b {
  font-variant-numeric: tabular-nums;
  margin-left: 8px;
}
.flow-note {
  font-size: 11px !important;
  color: var(--ui-muted) !important;
  margin: 16px 0 0 !important;
  line-height: 1.7;
}
#flow-replay-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 440;
}
#flow-map-replay {
  position: absolute;
  z-index: 650;
  top: 84px;
  left: 50%;
  transform: translateX(-50%);
  width: min(590px, calc(100% - 32px));
  padding: 16px 18px;
  color: var(--ui-text);
  background: var(--ui-card);
  border: 1px solid var(--ui-line);
  border-radius: 16px;
  box-shadow: 0 14px 45px rgba(0, 0, 0, 0.28);
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  cursor: default;
}
#flow-map-replay[hidden],
#flow-replay-canvas[hidden] {
  display: none !important;
}
#flow-map-replay header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
#flow-map-replay header div {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
#flow-map-replay strong {
  font-size: 14px;
}
#flow-map-replay [data-flow-time] {
  font-size: 12px;
  color: var(--ui-muted);
  font-variant-numeric: tabular-nums;
}
#flow-map-replay [data-flow-close] {
  min-height: 30px;
  font-size: 20px;
  padding: 0 10px;
}
#flow-map-replay p {
  font-size: 10px;
  line-height: 1.6;
  color: var(--ui-muted);
  margin: 10px 0 0;
}
.flow-card button:focus-visible,
.flow-card input:focus-visible,
#flow-map-replay button:focus-visible,
#flow-map-replay input:focus-visible {
  outline: 2px solid var(--ui-focus);
  outline-offset: 3px;
}
@media (max-width: 760px) {
  .flow-card {
    padding: 16px;
    border-radius: 16px;
  }
  .flow-heading {
    gap: 8px;
    margin-bottom: 20px;
  }
  .flow-heading h3 {
    font-size: 20px !important;
  }
  .flow-metrics {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .flow-metric strong {
    font-size: 21px;
  }
  .flow-metric {
    padding-left: 12px;
  }
  .flow-leader {
    grid-column: 1/-1;
    border: 0;
    padding: 0;
    display: flex;
    gap: 14px;
    align-items: center;
  }
  .flow-leader > span {
    margin: 0;
  }
  .flow-leader strong {
    font-size: 16px;
  }
  .flow-controls {
    flex-wrap: wrap;
    gap: 8px;
  }
  .flow-controls input[type='range'] {
    order: -1;
    flex-basis: 100%;
  }
  .flow-controls button {
    flex: 1;
    font-size: 11px;
    padding: 7px 9px;
  }
  .flow-plot {
    min-height: 100px;
  }
  .flow-note {
    font-size: 10px !important;
  }
  #flow-map-replay {
    top: 70px;
    padding: 12px;
  }
  #flow-map-replay .flow-controls input {
    order: 0;
    flex-basis: auto;
    min-width: 60px;
  }
  #flow-map-replay .flow-controls button {
    flex: 0;
  }

  #ops-line-flow-card .flow-legend {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  #ops-line-flow-card .flow-legend button {
    width: 100%;
    min-width: 0;
    justify-content: flex-start;
    gap: 6px;
    font-size: 11px;
    padding: 8px;
  }
  #ops-line-flow-card .flow-legend button b {
    margin-left: auto;
  }
  #ops-line-flow-card .flow-controls button {
    padding: 8px 6px;
    font-size: 11px;
    min-width: 0;
  }
}

/* The app shell enforces button colors; keep this override in one place for both themes. */
html body #ctrl-center-overlay #ops-line-flow-card button {
  color: var(--ui-text) !important;
  background: var(--ui-surface) !important;
  border-color: var(--ui-line) !important;
}
html body #ctrl-center-overlay #ops-line-flow-card button[data-flow-map] {
  background: var(--ui-text) !important;
  color: var(--ui-card) !important;
  border-color: transparent !important;
}
html body #ctrl-center-overlay #ops-line-flow-card .flow-legend button[aria-pressed='true'] {
  border-color: var(--flow-line) !important;
}