:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --fg: #1e293b;
  --fg-muted: #64748b;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-light: #eef2ff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --radius: 10px;
  --font: "Inter", system-ui, -apple-system, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

header {
  text-align: center;
  padding: 2.5rem 1rem 1.5rem;
}

header h1 {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--fg-muted);
  margin-top: 0.4rem;
  font-size: 0.9rem;
}

.subtitle a {
  color: var(--accent);
  text-decoration: none;
}

.subtitle a:hover {
  text-decoration: underline;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem 1.5rem;
}

/* Tab navigation */
.tab-nav {
  display: flex;
  gap: 0;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  padding: 0.6rem 1.25rem;
  border: none;
  background: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--fg-muted);
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}

.tab-btn:hover {
  color: var(--fg);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Controls */
.controls {
  display: flex;
  column-gap: 1.5rem;
  row-gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
  padding: 0.6rem 0.9rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.control-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.control-group label {
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--fg-muted);
}

#task-select {
  padding: 0.35rem 0.5rem;
  font-family: var(--font);
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  min-width: 280px;
  background: var(--bg);
  color: var(--fg);
  outline: none;
}

#task-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light);
}

/* Shot toggle buttons */
.shot-toggle {
  display: flex;
  gap: 0;
}

.shot-btn {
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--fg-muted);
  transition: all 0.15s;
}

.shot-btn:first-child { border-radius: 6px 0 0 6px; }
.shot-btn:last-child { border-radius: 0 6px 6px 0; }
.shot-btn:not(:first-child) { border-left: none; }
.shot-btn:hover { background: var(--accent-light); color: var(--accent); }

.shot-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Small dropdown selectors (prompt agg, normalization) */
.control-select {
  padding: 0.35rem 0.5rem;
  font-family: var(--font);
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  outline: none;
}

.control-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light);
}

/* Stderr toggle */
.stderr-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg-muted);
  cursor: pointer;
  user-select: none;
}

.stderr-label input[type="checkbox"] {
  accent-color: var(--accent);
  cursor: pointer;
}

#stderr-control.disabled,
#prompt-dev-control.disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* Task description */
.task-description {
  font-size: 0.85rem;
  color: var(--fg-muted);
  padding: 0.6rem 0.9rem;
  background: var(--accent-light);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.metric-description {
  display: block;
  margin-top: 0.4rem;
  color: var(--fg-muted);
}

/* Chart */
#chart-container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.25rem;
  margin-bottom: 1rem;
}

#chart {
  width: 100%;
  height: 480px;
}

/* Shared checkbox section styles */
.task-checkboxes {
  padding: 0.9rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 1rem;
}

/* Model panels container */
.model-panels {
  margin-bottom: 1rem;
}

.model-panels-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.model-panel {
  padding: 0.9rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* Chart header with size slider */
.chart-header {
  display: flex;
  justify-content: flex-end;
  padding: 0.4rem 0.5rem 0;
}

/* Size slider */
.size-slider-container {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.3rem 0.7rem;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--fg-muted);
  max-width: 380px;
}

.size-slider-container label {
  white-space: nowrap;
}

.size-label {
  font-weight: 600;
  color: var(--fg);
  min-width: 2.5rem;
  text-align: center;
}

.size-sep {
  color: var(--fg-muted);
}

.range-slider {
  position: relative;
  flex: 1;
  height: 24px;
  min-width: 120px;
  user-select: none;
  touch-action: none;
}

.range-track {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 4px;
  transform: translateY(-50%);
  background: var(--border);
  border-radius: 2px;
}

.range-fill {
  position: absolute;
  top: 50%;
  height: 4px;
  transform: translateY(-50%);
  background: var(--accent);
  border-radius: 2px;
  pointer-events: none;
}

.range-thumb {
  position: absolute;
  top: 50%;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--surface);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  transform: translate(-50%, -50%);
  cursor: grab;
  z-index: 2;
  transition: box-shadow 0.15s;
}

.range-thumb:hover,
.range-thumb.active {
  box-shadow: 0 0 0 4px var(--accent-light), 0 1px 3px rgba(0,0,0,0.2);
}

.range-thumb.active {
  cursor: grabbing;
}

.checkbox-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
}

.checkbox-header h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg);
}

.checkbox-actions {
  display: flex;
  gap: 0.4rem;
}

.small-btn {
  padding: 0.2rem 0.6rem;
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--surface);
  color: var(--fg-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.small-btn:hover {
  background: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}

/* Task checkbox grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.6rem;
}

.checkbox-category h4 {
  margin: 0.15rem 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding-bottom: 0.15rem;
  border-bottom: 1px solid var(--border-light);
}

.checkbox-category label {
  display: block;
  padding: 0.15rem 0.25rem;
  font-size: 0.8rem;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.1s;
  color: var(--fg);
}

.checkbox-category label:hover {
  background: var(--accent-light);
}

.checkbox-category input[type="checkbox"] {
  margin-right: 0.25rem;
  accent-color: var(--accent);
}

/* Model checkbox grid */
.model-checkbox-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.model-org-group + .model-org-group {
  margin-top: 0.5rem;
}

.model-org-group h4 {
  margin: 0 0 0.3rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding-bottom: 0.15rem;
  border-bottom: 1px solid var(--border-light);
  grid-column: 1 / -1;
}

.model-org-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 0.3rem 0.75rem;
}

.model-checkbox-grid label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: 5px;
  transition: background 0.1s;
}

.model-checkbox-grid label:hover {
  background: var(--accent-light);
}

.model-checkbox-grid input[type="checkbox"] {
  accent-color: var(--accent);
}

.model-color-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Custom tooltip (shared across models, tasks, chart hover) */
.custom-tooltip {
  display: none;
  position: fixed;
  z-index: 1000;
  max-width: 360px;
  padding: 0.65rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--fg);
  pointer-events: none;
}

.custom-tooltip.visible {
  display: block;
}

.tooltip-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.tooltip-body {
  color: var(--fg-muted);
  margin-bottom: 0.35rem;
}

.tooltip-footer {
  color: var(--accent);
  font-size: 0.75rem;
  word-break: break-all;
}

/* Plotly modebar */
.modebar-container {
  top: 8px !important;
  right: 8px !important;
}

.modebar-group {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: 6px !important;
  padding: 2px !important;
}

.modebar-btn path {
  fill: var(--fg-muted) !important;
}

.modebar-btn:hover path {
  fill: var(--accent) !important;
}

.modebar-btn.active path {
  fill: var(--accent) !important;
}

/* Footer */
footer {
  text-align: center;
  padding: 1.5rem 1rem;
  color: var(--fg-muted);
  font-size: 0.85rem;
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* ── Quality Filter Panel ── */

.filter-panel {
  padding: 0.9rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 0.75rem;
}

.filter-panel-header h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.2rem;
}

.filter-panel-header a {
  color: var(--accent);
  text-decoration: none;
}

.filter-panel-header a:hover {
  text-decoration: underline;
}

.filter-description {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-bottom: 0.75rem;
}

.filter-criteria-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 0.6rem;
}

.filter-criterion {
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg);
  transition: opacity 0.15s;
}

.filter-criterion.disabled {
  opacity: 0.45;
}

.filter-criterion-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.35rem;
}

.filter-criterion-header input[type="checkbox"] {
  cursor: pointer;
}

.filter-criterion-header .criterion-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--fg);
  cursor: pointer;
}

.filter-criterion-header .criterion-desc {
  font-size: 0.72rem;
  color: var(--fg-muted);
  margin-left: auto;
}

.filter-criterion-controls {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

.filter-criterion-controls label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.filter-criterion-controls input[type="number"] {
  width: 70px;
  padding: 0.2rem 0.35rem;
  font-family: var(--font);
  font-size: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--surface);
  color: var(--fg);
}

.filter-criterion-controls .threshold-input {
  width: 60px;
}

.filter-criterion-controls .direction-label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  font-weight: 500;
}

/* ── Filter Results Table ── */

.filter-table-container {
  padding: 0.9rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 0.75rem;
}

.filter-table-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.filter-summary {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

.filter-table-content {
  overflow-x: auto;
}

.filter-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
  margin-top: 0.6rem;
}

.filter-table th {
  font-weight: 600;
  text-align: center;
  padding: 0.35rem 0.5rem;
  border-bottom: 2px solid var(--border);
  color: var(--fg-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.filter-table th:first-child {
  text-align: left;
}

.filter-table td {
  padding: 0.3rem 0.5rem;
  text-align: center;
  border-bottom: 1px solid var(--border-light);
}

.filter-table td:first-child {
  text-align: left;
  font-weight: 500;
  white-space: nowrap;
}

.filter-table td.pass {
  background: #dcfce7;
  color: #166534;
}

.filter-table td.fail {
  background: #fef2f2;
  color: #991b1b;
}

.filter-table td.na {
  background: var(--bg);
  color: var(--fg-muted);
}

.filter-table tr.pass-row td:first-child {
  color: #166534;
}

.filter-table tr.fail-row td:first-child {
  color: #991b1b;
}

.filter-table td.overall-pass {
  color: #166534;
  font-weight: 600;
}

.filter-table td.overall-fail {
  color: #991b1b;
  font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
  .controls {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  #task-select {
    min-width: 100%;
  }

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

  header h1 {
    font-size: 1.3rem;
  }

  #chart {
    height: 360px;
  }

  .model-panels-row {
    grid-template-columns: 1fr;
  }

  .model-org-group {
    grid-template-columns: repeat(2, 1fr);
  }

  .chart-header {
    justify-content: stretch;
  }

  .size-slider-container {
    max-width: none;
  }

  .filter-criteria-grid {
    grid-template-columns: 1fr;
  }

  .filter-table {
    font-size: 0.7rem;
  }
}