:root {
  --dq-panel: #ffffff;
  --dq-panel-muted: #f8fafc;
  --dq-border-dashed: #93c5fd;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-family: var(--bd-font);
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  font-family: var(--bd-font);
}

.bd-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bd-bg);
  border-bottom: 1px solid var(--bd-border);
}

.bd-topbar-inner {
  max-width: 1100px;
  height: 52px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bd-topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.bd-title {
  margin: 0;
  color: var(--bd-text);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
}

.bd-topbar-divider {
  width: 1px;
  height: 16px;
  background: var(--bd-border);
}

.bd-back {
  color: var(--bd-text-secondary);
  font-size: 13px;
  text-decoration: none;
}

.bd-back:hover,
.bd-link:hover {
  color: var(--bd-text);
}

.bd-main {
  flex: 1;
  padding: 24px;
}

.bd-container {
  max-width: 1100px;
  margin: 0 auto;
}

.bd-footer {
  padding: 16px;
  border-top: 1px solid var(--bd-border);
  background: var(--bd-bg);
  text-align: center;
}

.bd-link {
  color: var(--bd-primary);
  text-decoration: none;
}

.bd-label {
  margin: 0 0 8px;
  color: var(--bd-text-tertiary);
  font: 500 10px/1.2 var(--bd-font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.bd-body {
  color: var(--bd-text);
  font-size: 14px;
  line-height: 1.6;
}

.bd-hint {
  color: var(--bd-text-tertiary);
  font-size: 12px;
}

.bd-btn {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: var(--bd-radius-md);
  font: 500 13px/1 var(--bd-font);
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}

.bd-btn:disabled {
  cursor: not-allowed;
  opacity: .55;
}

.bd-btn-primary {
  background: var(--bd-primary);
  color: #fff;
}

.bd-btn-primary:hover:not(:disabled) {
  background: var(--bd-primary-hover);
}

.bd-btn-secondary {
  border-color: var(--bd-border);
  background: var(--bd-bg);
  color: var(--bd-text-secondary);
}

.bd-btn-secondary:hover:not(:disabled) {
  border-color: var(--bd-border-strong);
  background: var(--bd-bg-tertiary);
  color: var(--bd-text);
}

.bd-input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-md);
  background: var(--bd-bg);
  color: var(--bd-text);
  font: 400 14px/1 var(--bd-font);
}

body.data-quality-page {
  background: var(--bd-bg-secondary);
  color: var(--bd-text);
}

.data-quality-page .bd-main > .bd-container {
  max-width: 1080px;
}

.data-quality-page .tool-page-intro {
  margin-bottom: 24px;
}

.data-quality-page .tool-page-intro h2 {
  margin: 0 0 8px;
}

.data-quality-page .tool-page-intro .bd-body {
  max-width: 700px;
}

.dq-upload-card,
.dq-what-we-check {
  padding: 28px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-lg);
  background: var(--dq-panel);
  box-shadow: var(--bd-shadow-sm);
}

.dq-upload-card {
  display: grid;
  gap: 20px;
}

.dq-upload-heading h3,
.dq-sheet-picker h3,
.dq-what-we-check h3 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.35;
}

.dq-upload-heading .bd-body,
.dq-sheet-picker .bd-body,
.dq-what-we-check p {
  margin: 0;
  color: var(--bd-text-secondary);
  line-height: 1.6;
}

.dq-dropzone {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 7px;
  padding: 38px 24px 32px;
  border: 1px dashed var(--dq-border-dashed);
  border-radius: var(--bd-radius-lg);
  background: var(--bd-primary-light);
  color: var(--bd-text-secondary);
  cursor: pointer;
  text-align: center;
  transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
}

.dq-dropzone:hover,
.dq-dropzone.is-dragging {
  border-color: var(--bd-primary);
  background: #eaf2ff;
}

.dq-dropzone:focus-visible {
  outline: 3px solid rgba(37, 99, 235, .28);
  outline-offset: 3px;
}

.dq-dropzone.is-busy {
  cursor: progress;
  opacity: .72;
}

.dq-dropzone-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 4px;
  border-radius: 50%;
  background: #dbeafe;
  color: var(--bd-primary);
  font: 500 22px/1 var(--bd-font);
}

.dq-dropzone-title {
  color: var(--bd-text);
  font-size: 15px;
  font-weight: 600;
}

.dq-dropzone-copy,
.dq-file-hint {
  font-size: 12px;
}

.dq-file-hint {
  margin-top: 3px;
  color: var(--bd-text-secondary);
}

.dq-browse-button {
  margin-top: 14px;
  pointer-events: none;
}

.dq-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.dq-sheet-picker {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-md);
  background: var(--dq-panel-muted);
}

.dq-sheet-controls {
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) auto;
  align-items: end;
  gap: 10px;
}

.dq-field-label {
  padding-bottom: 9px;
  color: var(--bd-text-secondary);
  font-size: 12px;
  font-weight: 600;
}

.dq-sheet-controls .bd-input {
  width: 100%;
}

.dq-upload-state {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 20px;
  color: var(--bd-text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.dq-state-dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bd-text-tertiary);
}

.dq-upload-state[data-state='loading'] .dq-state-dot {
  background: var(--bd-primary);
  box-shadow: 0 0 0 4px var(--bd-primary-light);
}

.dq-upload-state[data-state='success'] .dq-state-dot {
  background: var(--bd-success);
}

.dq-upload-state[data-state='error'] .dq-state-dot {
  background: var(--bd-danger);
}

.dq-message,
.dq-success-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border-radius: var(--bd-radius-md);
}

.dq-message-error {
  border: 1px solid #fecaca;
  background: var(--bd-danger-light);
  color: #991b1b;
}

.dq-message strong,
.dq-success-copy h3 {
  display: block;
  margin: 0 0 4px;
  font-size: 14px;
}

.dq-message p {
  margin: 0;
  color: #b91c1c;
  font-size: 13px;
  line-height: 1.5;
}

.dq-success-panel {
  border: 1px solid #bbf7d0;
  background: var(--bd-success-light);
}

.dq-success-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #dcfce7;
  color: var(--bd-success);
  font-weight: 700;
}

.dq-success-copy {
  min-width: 0;
  flex: 1 1 auto;
}

.dq-results-header > div,
.dq-section-heading-inline > div {
  min-width: 0;
  max-width: 100%;
}

.dq-success-copy .bd-label {
  margin-bottom: 6px;
}

.dq-success-copy h3 {
  overflow: hidden;
  color: var(--bd-text);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dq-success-copy .bd-body {
  font-size: 13px;
}

.dq-result-sheet {
  margin: 4px 0 0;
  color: var(--bd-text-secondary);
  font: 500 11px/1.5 var(--bd-font-mono);
}

.dq-what-we-check {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.dq-check-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.dq-check-grid article {
  padding: 14px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-md);
  background: var(--dq-panel-muted);
}

.dq-check-grid strong {
  display: block;
  margin-bottom: 5px;
  color: var(--bd-text);
  font-size: 13px;
}

.dq-check-grid p {
  font-size: 12px;
}

.dq-runtime-status {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 20px 0 0;
  padding: 12px 14px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-md);
  background: var(--dq-panel-muted);
  color: var(--bd-text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.dq-runtime-status::before {
  content: '';
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--bd-warning);
}

.dq-runtime-status[data-state='ready']::before {
  background: var(--bd-success);
}

.dq-results {
  display: grid;
  gap: 20px;
  margin-top: 32px;
}

.dq-results-header,
.dq-section-heading-inline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.dq-results-header h2 {
  margin: 0 0 8px;
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: -.02em;
}

.dq-results-header .bd-body {
  margin: 0;
  color: var(--bd-text-secondary);
}

.dq-result-section {
  padding: 24px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-lg);
  background: var(--dq-panel);
  box-shadow: var(--bd-shadow-sm);
}

.dq-section-heading {
  margin-bottom: 16px;
}

.dq-section-heading h3 {
  margin: 0;
  color: var(--bd-text);
  font-size: 17px;
  line-height: 1.35;
}

.dq-section-heading .bd-label {
  margin-bottom: 7px;
}

.dq-section-count {
  color: var(--bd-text-tertiary);
  font-size: 12px;
  white-space: nowrap;
}

.dq-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.dq-overview-card {
  display: grid;
  gap: 7px;
  padding: 16px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-md);
  background: var(--dq-panel-muted);
}

.dq-overview-card span {
  color: var(--bd-text-secondary);
  font-size: 12px;
}

.dq-overview-card strong {
  color: var(--bd-text);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.1;
}

.dq-issues-list {
  display: grid;
  gap: 10px;
}

.dq-issue-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--bd-border);
  border-left: 3px solid var(--bd-border-strong);
  border-radius: var(--bd-radius-md);
  background: var(--dq-panel-muted);
}

.dq-issue-card[data-severity='high'] {
  border-left-color: var(--bd-danger);
  background: var(--bd-danger-light);
}

.dq-issue-card[data-severity='medium'] {
  border-left-color: var(--bd-warning);
  background: var(--bd-warning-light);
}

.dq-issue-card[data-severity='low'] {
  border-left-color: var(--bd-primary);
}

.dq-issue-severity {
  align-self: start;
  min-width: 54px;
  padding: 4px 6px;
  border-radius: var(--bd-radius-sm);
  color: var(--bd-text-secondary);
  font: 500 10px/1.1 var(--bd-font-mono);
  text-align: center;
  text-transform: uppercase;
}

.dq-issue-card[data-severity='high'] .dq-issue-severity { color: var(--bd-danger); }
.dq-issue-card[data-severity='medium'] .dq-issue-severity { color: var(--bd-warning); }
.dq-issue-card[data-severity='low'] .dq-issue-severity { color: var(--bd-primary-text); }

.dq-issue-title {
  margin: 0 0 4px;
  color: var(--bd-text);
  font-size: 13px;
  font-weight: 600;
}

.dq-issue-detail {
  margin: 0;
  color: var(--bd-text-secondary);
  font-size: 12px;
  line-height: 1.5;
}

.dq-no-issues {
  padding: 18px;
  border: 1px solid #bbf7d0;
  border-radius: var(--bd-radius-md);
  background: var(--bd-success-light);
  color: #166534;
  font-size: 13px;
  line-height: 1.5;
}

.dq-columns-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.dq-search-field {
  flex: 1 1 280px;
  max-width: 420px;
}

.dq-filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.dq-filter-button,
.dq-sort-button {
  border: 0;
  background: transparent;
  color: var(--bd-text-secondary);
  font: 500 12px/1 var(--bd-font);
  cursor: pointer;
}

.dq-filter-button {
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-md);
}

.dq-filter-button:hover,
.dq-filter-button.is-active {
  border-color: #bfdbfe;
  background: var(--bd-primary-light);
  color: var(--bd-primary-text);
}

.dq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-md);
}

.dq-columns-table,
.dq-preview-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 13px;
}

.dq-columns-table th,
.dq-columns-table td,
.dq-preview-table th,
.dq-preview-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--bd-border);
  text-align: left;
  vertical-align: middle;
}

.dq-columns-table th,
.dq-preview-table th {
  background: var(--dq-panel-muted);
  color: var(--bd-text-secondary);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.dq-columns-table tbody tr:last-child td,
.dq-preview-table tbody tr:last-child td {
  border-bottom: 0;
}

.dq-columns-table tbody tr.is-selected td {
  background: var(--bd-primary-light);
}

.dq-columns-table tbody tr:hover td {
  background: #f8fbff;
}

.dq-sort-button {
  padding: 0;
  color: inherit;
  font-weight: 600;
}

.dq-sort-button span {
  margin-left: 4px;
  color: var(--bd-text-tertiary);
}

.dq-column-link {
  max-width: 260px;
  overflow: hidden;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--bd-primary-text);
  font: 600 13px/1.4 var(--bd-font);
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.dq-column-link:hover {
  color: var(--bd-primary-hover);
  text-decoration: underline;
}

.dq-type-badge,
.dq-status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-full);
  background: var(--dq-panel-muted);
  color: var(--bd-text-secondary);
  font: 500 11px/1 var(--bd-font-mono);
  white-space: nowrap;
}

.dq-status-badge[data-status='issue'] {
  border-color: #fed7aa;
  background: var(--bd-warning-light);
  color: var(--bd-warning);
}

.dq-status-badge[data-status='clean'] {
  border-color: #bbf7d0;
  background: var(--bd-success-light);
  color: #15803d;
}

.dq-table-empty {
  padding: 24px !important;
  color: var(--bd-text-tertiary);
  text-align: center !important;
}

.dq-profile-content {
  display: grid;
  gap: 18px;
}

.dq-profile-intro {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.dq-profile-intro h4 {
  margin: 0;
  color: var(--bd-text);
  font-size: 16px;
}

.dq-profile-intro p {
  margin: 0;
  color: var(--bd-text-secondary);
  font-size: 12px;
}

.dq-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.dq-stat-card {
  padding: 13px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-md);
  background: var(--dq-panel-muted);
}

.dq-stat-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--bd-text-tertiary);
  font-size: 11px;
}

.dq-stat-card strong {
  display: block;
  overflow: hidden;
  color: var(--bd-text);
  font-size: 15px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dq-profile-subheading {
  margin: 0;
  color: var(--bd-text);
  font-size: 13px;
}

.dq-top-values {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.dq-top-values td {
  padding: 7px 0;
  border-bottom: 1px solid var(--bd-border);
}

.dq-top-values tr:last-child td { border-bottom: 0; }
.dq-top-values td:last-child { color: var(--bd-text-secondary); text-align: right; }

.dq-histogram {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  align-items: end;
  gap: 8px;
  min-height: 120px;
  padding: 14px 14px 10px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-md);
  background: var(--dq-panel-muted);
}

.dq-histogram-bar {
  position: relative;
  min-height: 8px;
  border-radius: 4px 4px 2px 2px;
  background: #93c5fd;
}

.dq-histogram-bar span {
  position: absolute;
  right: 0;
  bottom: calc(100% + 4px);
  left: 0;
  color: var(--bd-text-tertiary);
  font: 500 10px/1 var(--bd-font-mono);
  text-align: center;
}

.dq-preview-wrap {
  max-height: 420px;
}

.dq-preview-table td,
.dq-preview-table th {
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dq-duplicate-panel {
  margin-top: 16px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

[hidden] {
  display: none !important;
}

@media (max-width: 820px) {
  .dq-check-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dq-sheet-controls { grid-template-columns: 1fr; align-items: stretch; }
  .dq-field-label { padding-bottom: 0; }
  .dq-overview-grid,
  .dq-stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dq-columns-toolbar { align-items: stretch; flex-direction: column; }
  .dq-search-field { max-width: none; }
}

@media (max-width: 600px) {
  .data-quality-page .bd-main { padding: 16px; }
  .dq-upload-card,
  .dq-what-we-check { padding: 20px; }
  .dq-check-grid { grid-template-columns: 1fr; }
  .dq-message,
  .dq-success-panel { align-items: flex-start; flex-wrap: wrap; }
  .dq-message .bd-btn,
  .dq-success-panel .bd-btn { width: 100%; }
  .dq-results-header,
  .dq-section-heading-inline { align-items: flex-start; flex-direction: column; }
  .dq-results-header .bd-btn { width: 100%; }
  .dq-result-section { padding: 20px; }
  .dq-overview-grid,
  .dq-stat-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 360px) {
  .dq-overview-grid,
  .dq-stat-grid { grid-template-columns: 1fr; }
  .dq-result-section { padding: 16px; }
}

/* Product polish: stronger hierarchy, calmer surfaces, and more useful
   scanning cues without changing the analysis interaction model. */
:root {
  --dq-ink: #0b1f3a;
  --dq-blue-soft: #edf5ff;
  --dq-shadow-card: 0 14px 34px rgba(15, 45, 90, .06), 0 2px 5px rgba(15, 45, 90, .04);
}

body.data-quality-page {
  background:
    radial-gradient(circle at 86% 0%, rgba(96, 165, 250, .14), transparent 26rem),
    linear-gradient(180deg, #f8fbff 0%, var(--bd-bg-secondary) 34rem);
}

.data-quality-page .bd-topbar {
  background: rgba(255, 255, 255, .88);
  box-shadow: 0 1px 0 rgba(15, 23, 42, .04);
  backdrop-filter: blur(12px);
}

.data-quality-page .bd-main > .bd-container {
  max-width: 1160px;
}

.data-quality-page .tool-page-intro {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-bottom: 22px;
  padding: 34px 36px 30px;
  border: 1px solid rgba(147, 197, 253, .38);
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(255, 255, 255, .98), rgba(239, 246, 255, .9));
  box-shadow: var(--dq-shadow-card);
}

.data-quality-page .tool-page-intro::after {
  position: absolute;
  z-index: -1;
  top: -110px;
  right: -80px;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(96, 165, 250, .2);
  border-radius: 50%;
  box-shadow: 0 0 0 28px rgba(147, 197, 253, .06), 0 0 0 56px rgba(147, 197, 253, .045);
  content: '';
}

.data-quality-page .tool-page-intro h2 {
  max-width: 760px;
  color: var(--dq-ink);
  font-size: clamp(30px, 4vw, 46px);
  letter-spacing: -.045em;
  line-height: 1.12;
}

.data-quality-page .tool-page-intro .bd-body {
  max-width: 680px;
  font-size: 15px;
}

.dq-intro-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.dq-intro-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(147, 197, 253, .48);
  border-radius: var(--bd-radius-full);
  background: rgba(255, 255, 255, .68);
  color: var(--bd-primary-text);
  font: 500 11px/1 var(--bd-font-mono);
}

.dq-intro-meta span:first-child i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--bd-success);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, .12);
}

.dq-upload-card,
.dq-result-section,
.dq-what-we-check {
  border-color: rgba(203, 213, 225, .82);
  border-radius: 18px;
  box-shadow: var(--dq-shadow-card);
}

.dq-upload-card {
  position: relative;
  overflow: hidden;
  gap: 18px;
  padding: 30px;
}

.dq-upload-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, #60a5fa 48%, #bfdbfe);
  content: '';
}

.dq-upload-heading .bd-label,
.dq-results-header .bd-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: .14em;
}

.dq-upload-heading .bd-label::before,
.dq-results-header .bd-label::before {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: var(--bd-primary-light);
  color: var(--bd-primary);
  font: 600 11px/1 var(--bd-font-mono);
  letter-spacing: 0;
}

.dq-upload-heading .bd-label::before { content: '01'; }
.dq-results-header .bd-label::before { content: '02'; }

.dq-upload-heading h3,
.dq-sheet-picker h3 {
  color: var(--dq-ink);
  font-size: 19px;
  letter-spacing: -.02em;
}

.dq-dropzone {
  min-height: 238px;
  padding: 46px 24px 38px;
  border-color: #8bb9ff;
  border-radius: 16px;
  background: linear-gradient(135deg, #f8fbff 0%, #edf5ff 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .7), inset 0 -18px 34px rgba(147, 197, 253, .08);
}

.dq-dropzone::before {
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(147, 197, 253, .2);
  border-radius: 11px;
  content: '';
  pointer-events: none;
}

.dq-dropzone > * {
  position: relative;
  z-index: 1;
}

.dq-dropzone:hover,
.dq-dropzone.is-dragging {
  background: linear-gradient(135deg, #f3f8ff 0%, #e5f0ff 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .75), 0 8px 20px rgba(37, 99, 235, .08);
}

.dq-dropzone-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 7px;
  background: #dbeafe;
  box-shadow: 0 0 0 8px rgba(219, 234, 254, .56), 0 8px 18px rgba(37, 99, 235, .1);
  font-size: 25px;
}

.dq-dropzone-title {
  font-size: 16px;
  letter-spacing: -.01em;
}

.dq-browse-button {
  min-height: 40px;
  padding: 0 18px;
  box-shadow: 0 7px 15px rgba(37, 99, 235, .2);
}

.dq-file-hint {
  color: var(--bd-text-secondary);
  font-family: var(--bd-font-mono);
  font-size: 10px;
  letter-spacing: .02em;
}

.dq-upload-state {
  width: fit-content;
  max-width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-full);
  background: rgba(248, 250, 252, .82);
}

.dq-upload-state[data-state='success'] {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: #166534;
}

.dq-upload-state[data-state='error'] {
  border-color: #fecaca;
  background: #fff7f7;
}

.dq-success-panel {
  border-radius: 14px;
  box-shadow: inset 4px 0 0 #22c55e;
}

.dq-results {
  gap: 16px;
  margin-top: 28px;
}

.dq-results-header {
  align-items: center;
  padding: 4px 2px 2px;
}

.dq-results-header h2 {
  color: var(--dq-ink);
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: -.04em;
}

.dq-result-section {
  padding: 26px;
}

.dq-section-heading h3 {
  color: var(--dq-ink);
  letter-spacing: -.02em;
}

.dq-overview-grid {
  gap: 14px;
}

.dq-overview-card {
  position: relative;
  min-height: 126px;
  overflow: hidden;
  padding: 20px 18px 16px 58px;
  border-color: #e5edf8;
  background: linear-gradient(145deg, #ffffff, #f7faff);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}

.dq-overview-card:hover {
  border-color: #bfdbfe;
  box-shadow: 0 10px 20px rgba(37, 99, 235, .08);
  transform: translateY(-2px);
}

.dq-overview-card::before {
  position: absolute;
  top: 18px;
  left: 18px;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: var(--bd-primary-light);
  color: var(--bd-primary);
  font: 600 13px/1 var(--bd-font-mono);
}

.dq-overview-card[data-icon='rows']::before { content: '#'; }
.dq-overview-card[data-icon='columns']::before { content: '▦'; }
.dq-overview-card[data-icon='duplicates']::before { content: '↻'; }
.dq-overview-card[data-icon='missing']::before { content: '!'; }

.dq-overview-card span {
  color: #64748b;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.dq-overview-card strong {
  margin-top: 5px;
  color: var(--dq-ink);
  font-size: 30px;
  letter-spacing: -.04em;
}

.dq-overview-card small {
  display: block;
  margin-top: 7px;
  color: var(--bd-text-tertiary);
  font-size: 11px;
}

.dq-no-issues {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
}

.dq-no-issues::before {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #dcfce7;
  color: #16a34a;
  content: '✓';
  font-weight: 700;
}

.dq-columns-toolbar {
  margin-bottom: 18px;
}

.dq-search-field .bd-input {
  border-color: #d9e3f0;
  background: #fbfdff;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, .025);
}

.dq-table-wrap {
  border-color: #dfe8f4;
  box-shadow: 0 2px 6px rgba(15, 23, 42, .025);
}

.dq-columns-table th,
.dq-preview-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f6f9fd;
  color: #64748b;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.dq-columns-table tbody tr,
.dq-preview-table tbody tr {
  transition: background .15s ease;
}

.dq-columns-table tbody tr.is-selected td:first-child {
  border-left: 3px solid var(--bd-primary);
}

.dq-type-badge {
  border-color: #bfdbfe;
  background: #eff6ff;
  color: var(--bd-primary-text);
}

.dq-histogram {
  border-color: #dbeafe;
  background: linear-gradient(180deg, #f8fbff, #f1f7ff);
}

.dq-check-grid article {
  position: relative;
  padding: 18px 14px 15px 54px;
  border-color: #e5edf8;
  background: rgba(248, 250, 252, .82);
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}

.dq-check-grid article::before {
  position: absolute;
  top: 17px;
  left: 16px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  background: #eff6ff;
  color: var(--bd-primary);
  font: 600 10px/1 var(--bd-font-mono);
}

.dq-check-grid article:nth-child(1)::before { content: '01'; }
.dq-check-grid article:nth-child(2)::before { content: '02'; }
.dq-check-grid article:nth-child(3)::before { content: '03'; }
.dq-check-grid article:nth-child(4)::before { content: '04'; }

.dq-check-grid article:hover {
  border-color: #bfdbfe;
  background: #f7fbff;
  transform: translateY(-2px);
}

.dq-runtime-status {
  border-color: #dbe5f2;
  background: rgba(255, 255, 255, .72);
}

@media (max-width: 820px) {
  .data-quality-page .tool-page-intro { padding: 28px; }
  .data-quality-page .tool-page-intro h2 { font-size: 36px; }
}

@media (max-width: 600px) {
  .data-quality-page .tool-page-intro { padding: 24px 20px; border-radius: 18px; }
  .data-quality-page .tool-page-intro h2 { font-size: 30px; }
  .dq-upload-card { padding: 24px 20px; }
  .dq-dropzone { min-height: 220px; padding-inline: 16px; }
  .dq-results-header { padding-inline: 2px; }
}

/* Keep the checker aligned with the shared BikinDashboard visual system. */
:root {
  --dq-ink: var(--bd-text);
  --dq-shadow-card: none;
}

body.data-quality-page {
  background: var(--bd-bg-secondary);
}

.data-quality-page .bd-topbar {
  background: var(--bd-bg);
  box-shadow: none;
  backdrop-filter: none;
}

.data-quality-page .bd-main > .bd-container {
  max-width: 1080px;
}

.data-quality-page h2,
.data-quality-page h3 {
  font-family: var(--bd-font-heading);
}

.data-quality-page .tool-page-intro {
  overflow: visible;
  margin-bottom: 24px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.data-quality-page .tool-page-intro::after {
  display: none;
}

.data-quality-page .tool-page-intro h2 {
  max-width: 720px;
  color: var(--bd-text);
  font-size: 24px;
  letter-spacing: -.02em;
  line-height: 1.2;
}

.data-quality-page .tool-page-intro .bd-body {
  max-width: 700px;
  font-size: 14px;
}

.dq-intro-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.dq-intro-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 24px;
  padding: 0 8px;
  border: 1px solid var(--bd-border);
  border-radius: var(--bd-radius-sm);
  background: var(--bd-bg);
  color: var(--bd-text-secondary);
  font: 500 11px/1 var(--bd-font-mono);
}

.dq-intro-meta span:first-child i {
  box-shadow: none;
}

.dq-upload-card,
.dq-result-section,
.dq-what-we-check {
  border-color: var(--bd-border);
  border-radius: var(--bd-radius-md);
  box-shadow: none;
}

.dq-upload-card {
  position: static;
  overflow: visible;
  gap: 20px;
  padding: 28px;
}

.dq-upload-card::before {
  display: none;
}

.dq-upload-heading .bd-label::before,
.dq-results-header .bd-label::before {
  display: none;
}

.dq-dropzone {
  min-height: 220px;
  align-content: center;
  padding: 32px 24px;
  border-color: var(--bd-border-strong);
  border-radius: var(--bd-radius-md);
  background: var(--bd-bg-tertiary);
  box-shadow: none;
}

.dq-dropzone::before {
  display: none;
}

.dq-dropzone:hover,
.dq-dropzone.is-dragging {
  border-color: var(--bd-primary);
  background: var(--bd-primary-light);
  box-shadow: none;
}

.dq-dropzone-icon {
  width: 38px;
  height: 38px;
  box-shadow: none;
  font-size: 22px;
}

.dq-browse-button {
  display: inline-flex;
  min-height: 36px;
  padding: 0 14px;
  box-shadow: none;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
}

.dq-upload-state {
  width: auto;
  max-width: none;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.dq-success-panel {
  border-radius: var(--bd-radius-md);
  box-shadow: none;
}

.dq-result-section {
  padding: 24px;
}

.dq-overview-card {
  background: var(--dq-panel-muted);
  border-radius: var(--bd-radius-md);
  box-shadow: none;
  transition: border-color .15s ease;
}

.dq-overview-card:hover {
  border-color: var(--bd-border-strong);
  box-shadow: none;
  transform: none;
}

.dq-table-wrap {
  box-shadow: none;
}

.dq-histogram {
  background: var(--bd-bg-tertiary);
}

.dq-check-grid article {
  padding: 14px;
  border-radius: var(--bd-radius-md);
  background: var(--dq-panel-muted);
  transition: border-color .15s ease, background .15s ease;
}

.dq-check-grid article::before {
  display: none;
}

.dq-check-grid article:hover {
  border-color: var(--bd-border-strong);
  background: var(--bd-bg-tertiary);
  transform: none;
}

.dq-runtime-status {
  border-radius: var(--bd-radius-md);
  background: var(--bd-bg);
}

.dq-type-badge,
.dq-status-badge {
  border-radius: var(--bd-radius-sm);
}

.dq-results,
.dq-result-section,
.dq-results-header,
.dq-overview-grid,
.dq-overview-card {
  min-width: 0;
}

.dq-overview-grid {
  width: 100%;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.dq-overview-card {
  overflow: hidden;
}