.dataset-preview-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.dataset-preview-summary-card {
  display: grid;
  gap: 8px;
  min-height: 110px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--metric-row-border);
  background: linear-gradient(180deg, rgba(108, 231, 255, 0.08), rgba(255, 255, 255, 0.02));
}

.dataset-preview-distribution {
  grid-column: span 2;
}

.dataset-preview-summary-label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-bright);
}

.dataset-preview-summary-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--surface-text-strong);
}

.dataset-preview-summary-detail {
  color: var(--muted);
  font-size: 0.88rem;
}

.dataset-preview-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: flex-start;
}

.dataset-preview-chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--badge-border);
  background: var(--badge-bg);
  color: var(--surface-text-strong);
  font-size: 0.84rem;
}

.dataset-preview-chip.is-empty {
  color: var(--muted);
}

.dataset-preview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.dataset-preview-tile {
  display: grid;
  gap: 10px;
  padding: 12px;
  border-radius: 18px;
  border: 1px solid var(--metric-row-border);
  background: var(--metric-row-bg);
  color: inherit;
  text-align: left;
  cursor: zoom-in;
}

.dataset-preview-tile:hover,
.dataset-preview-tile:focus-visible {
  border-color: var(--accent-bright);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.dataset-preview-tile-frame {
  position: relative;
  overflow: hidden;
  width: 128px;
  height: 128px;
  margin: 0 auto;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
}

.dataset-preview-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 180ms ease;
}

.dataset-preview-tile:hover .dataset-preview-thumbnail,
.dataset-preview-tile:focus-visible .dataset-preview-thumbnail {
  transform: scale(1.08);
}

.dataset-preview-tile-footer {
  display: grid;
  gap: 4px;
}

.dataset-preview-tile-label {
  color: var(--surface-text-strong);
}

.dataset-preview-tile-meta,
.dataset-preview-code {
  color: var(--muted);
  font: 0.8rem/1.4 "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

.dataset-preview-table-wrapper {
  display: grid;
  gap: 10px;
}

.dataset-preview-table-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.dataset-preview-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid var(--metric-row-border);
  background: var(--metric-row-bg);
}

.dataset-preview-table thead {
  background: rgba(108, 231, 255, 0.08);
}

.dataset-preview-table th,
.dataset-preview-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--metric-row-border);
  text-align: left;
  vertical-align: top;
}

.dataset-preview-table th {
  color: var(--accent-bright);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dataset-preview-table td {
  color: var(--surface-text-strong);
}

.dataset-preview-table tbody {
  display: block;
  max-height: 420px;
  overflow: auto;
}

.dataset-preview-table thead,
.dataset-preview-table tbody tr {
  display: table;
  width: 100%;
  table-layout: fixed;
}

.dataset-preview-label-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--surface-text-strong);
  font-size: 0.84rem;
}

.dataset-preview-empty-state {
  padding: 16px;
  border-radius: 16px;
  border: 1px dashed var(--metric-row-border);
  color: var(--muted);
  text-align: center;
}

.dataset-preview-modal-open {
  overflow: hidden;
}

.dataset-preview-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
}

.dataset-preview-modal[hidden] {
  display: none;
}

.dataset-preview-modal-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(3, 16, 24, 0.72);
  cursor: pointer;
}

.dataset-preview-modal-dialog {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 16px;
  width: min(720px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  margin: 24px auto;
  padding: 20px;
  overflow: auto;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--panel-bg);
  box-shadow: var(--shadow);
}

.dataset-preview-modal-close {
  justify-self: end;
}

.dataset-preview-modal-title {
  margin: 0;
  color: var(--surface-text-strong);
}

.dataset-preview-modal-image {
  width: 100%;
  max-height: 480px;
  object-fit: contain;
  border-radius: 20px;
  border: 1px solid var(--metric-row-border);
  background: rgba(0, 0, 0, 0.24);
}

.dataset-preview-modal-meta {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 14px;
  margin: 0;
}

.dataset-preview-modal-meta dt {
  color: var(--accent-bright);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.dataset-preview-modal-meta dd {
  margin: 0;
  color: var(--surface-text-strong);
  word-break: break-word;
}

@media (max-width: 1200px) {
  .dataset-preview-summary-grid,
  .dataset-preview-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .dataset-preview-summary-grid,
  .dataset-preview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dataset-preview-distribution {
    grid-column: span 2;
  }
}

@media (max-width: 640px) {
  .dataset-preview-summary-grid,
  .dataset-preview-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .dataset-preview-distribution {
    grid-column: span 1;
  }

  .dataset-preview-modal-dialog {
    padding: 16px;
  }
}