html {
  min-width: 0;
}

.stats-body {
  min-width: 0;
}

.stats-header .header-button {
  border-color: rgba(255, 255, 255, 0.32);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.stats-header .header-button:hover {
  background: rgba(255, 255, 255, 0.13);
}

.stats-main {
  width: min(1520px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.stats-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 14px;
}

.stats-intro h2 {
  margin: 4px 0 5px;
  font-size: clamp(1.55rem, 2.2vw, 2.15rem);
}

.stats-intro p:not(.eyebrow) {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
}

.stats-filters {
  display: flex;
  align-items: end;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.stats-filters label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.stats-filters select {
  min-height: 36px;
  min-width: 170px;
}

.preset-group {
  display: flex;
  gap: 6px;
}

.range-preset.active {
  color: var(--blue-dark);
  background: var(--blue-soft);
  border-color: #75aac5;
}

.stats-status {
  min-height: 24px;
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.86rem;
}

.stats-status.error {
  color: var(--red);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.kpi-card {
  min-height: 132px;
  padding: 17px 18px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.kpi-card > span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.kpi-card strong {
  margin: 8px 0 5px;
  color: var(--ink);
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.kpi-card small {
  margin-top: auto;
  color: var(--muted);
  line-height: 1.35;
}

.chart-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 16px;
  margin-bottom: 16px;
}

.chart-card {
  min-width: 0;
  padding: 18px;
}

.chart-heading h3,
.quality-card h3,
.feature-table-card h3 {
  margin: 0 0 3px;
}

.chart-heading p {
  margin: 0;
}

.stats-chart {
  width: 100%;
  min-height: 390px;
}

.assistant-model-card {
  margin-bottom: 16px;
  padding: 18px;
}

.assistant-model-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(0, 1.2fr);
  gap: 18px;
  align-items: center;
  margin-top: 12px;
}

.assistant-model-chart {
  min-height: 300px;
}

#assistant-model-table th,
#assistant-model-table td {
  white-space: nowrap;
}

#assistant-model-table td:first-child {
  min-width: 210px;
  white-space: normal;
}

.model-identifier {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.72rem;
}

.quality-card {
  margin-bottom: 16px;
  padding: 18px;
}

.quality-card .eyebrow {
  margin-bottom: 4px;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(130px, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.quality-grid p {
  margin: 0;
  padding: 12px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 5px;
  display: grid;
  gap: 4px;
}

.quality-grid strong {
  font-size: 1.08rem;
  font-variant-numeric: tabular-nums;
}

.quality-grid span,
.caveat {
  color: var(--muted);
  font-size: 0.8rem;
}

.caveat {
  margin: 12px 0 0;
  padding-left: 11px;
  border-left: 3px solid #d2a13c;
  line-height: 1.45;
}

.feature-table-card {
  padding: 18px;
}

#feature-table th,
#feature-table td {
  white-space: nowrap;
}

#feature-table th button {
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: inherit;
  background: transparent;
  font-size: inherit;
  font-weight: inherit;
}

#feature-table th button:hover {
  color: var(--blue-dark);
  text-decoration: underline;
}

#feature-table .number {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 1080px) {
  .stats-intro {
    align-items: start;
    flex-direction: column;
  }

  .stats-filters {
    justify-content: flex-start;
  }

  .kpi-grid {
    grid-template-columns: repeat(3, minmax(150px, 1fr));
  }

  .chart-grid {
    grid-template-columns: 1fr;
  }

  .assistant-model-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .stats-main {
    width: min(100% - 24px, 1520px);
    padding-top: 20px;
  }

  .stats-header {
    align-items: flex-start;
    padding: 13px 16px;
  }

  .stats-header h1 {
    font-size: 1.2rem;
  }

  .stats-filters,
  .preset-group {
    width: 100%;
  }

  .preset-group > button,
  .stats-filters label,
  .stats-filters select,
  #stats-refresh {
    flex: 1;
    width: 100%;
  }

  .kpi-grid,
  .quality-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stats-chart {
    min-height: 340px;
  }
}

@media (max-width: 430px) {
  .kpi-grid,
  .quality-grid {
    grid-template-columns: 1fr;
  }
}