:root {
  --perf-bg: rgba(12, 28, 44, 0.6);
  --card-bg: rgba(10, 30, 50, 0.6);
  --muted: #9fb3c9;
  --accent: #f6d37a;
  --accent-2: #7fd1b9;
}

.performance-section {
  margin-top: 48px;
}

.perf-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.perf-kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.perf-kpi {
  background: var(--card-bg);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  padding: 18px 20px;
  box-shadow: 0 12px 30px rgba(6, 17, 36, 0.35);
}

.perf-kpi .label {
  color: var(--muted);
  font-size: 13px;
}

.perf-kpi .value {
  margin-top: 8px;
  font-weight: 700;
  font-size: 20px;
  color: #fff;
}

.perf-chart-card {
  background: transparent;
  border-radius: 12px;
  padding: 16px;
  max-width: 1200px;
  margin: 0 auto;
}

.perf-canvas-wrap {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.03);
  height: 450px;
  box-shadow: 0 8px 24px rgba(6, 17, 36, 0.25);
}

/* legend styling beneath chart */
.perf-legend {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: center;
  margin-top: 16px;
  color: var(--muted);
  padding: 8px 16px;
}

.perf-legend .item {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 13px;
}

.perf-legend .swatch {
  width: 12px;
  height: 4px;
  border-radius: 2px;
}

/* Desktop-first responsive design */
@media (min-width: 1280px) {
  .perf-kpis {
    grid-template-columns: repeat(4, 1fr);
    max-width: 1200px;
    margin: 0 auto 24px;
  }

  .perf-canvas-wrap {
    height: 520px;
  }
}

@media (max-width: 960px) {
  .perf-canvas-wrap {
    padding: 20px;
    height: 380px;
  }

  .perf-kpis {
    gap: 12px;
  }
}

@media (max-width: 640px) {
  .perf-canvas-wrap {
    padding: 16px 12px;
    height: 320px;
  }

  .perf-kpi {
    padding: 14px 16px;
  }

  .perf-kpi .value {
    font-size: 18px;
  }

  .perf-kpi .label {
    font-size: 12px;
  }

  .perf-legend {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 12px;
    font-size: 12px;
  }
}