/* ============================================================
   System Intelligence — system_intelligence.css
   Prefix: sys-
   ============================================================ */

.sys-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}

.sys-title {
  font-size: var(--font-3xl);
  font-weight: 700;
  margin: 0;
}

.sys-subtitle {
  font-size: var(--font-sm);
  color: var(--text-muted);
  margin-top: 4px;
}

.sys-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* Tabs */
.sys-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  overflow-x: auto;
}

.sys-tab {
  padding: 10px 18px;
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.sys-tab:hover {
  color: var(--text-secondary);
}

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

/* Training grid */
.sys-model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.sys-model-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color 0.2s;
}

.sys-model-card.expanded {
  border-color: var(--accent);
}

.sys-model-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.sys-model-name {
  font-weight: 600;
  font-size: var(--font-md);
}

.sys-model-badge {
  font-size: var(--font-2xs);
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 500;
}

.sys-grade-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 800;
  border: 2px solid;
  cursor: help;
  flex-shrink: 0;
  transition: transform 0.15s;
}
.sys-grade-badge:hover {
  transform: scale(1.12);
}

.sys-model-badge.trained { background: var(--success-bg); color: var(--success); }
.sys-model-badge.stale { background: var(--warning-bg); color: var(--warning); }
.sys-model-badge.untrained { background: var(--error-bg); color: var(--error); }
.sys-model-badge.training { background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); animation: sys-pulse 1.5s ease-in-out infinite; }

@keyframes sys-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.sys-model-meta {
  font-size: var(--font-xs);
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.6;
}

.sys-model-meta span {
  display: block;
}

/* Model narrative block */
.sys-model-narrative {
  background: color-mix(in srgb, var(--bg-card) 80%, var(--accent) 6%);
  border: 1px solid color-mix(in srgb, var(--border) 70%, var(--accent) 15%);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sys-narrative-section {
  display: flex;
  gap: 8px;
  align-items: baseline;
}

.sys-narrative-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  min-width: 80px;
  flex-shrink: 0;
  line-height: 1.5;
}

.sys-narrative-text {
  font-size: var(--font-xs);
  color: var(--text-secondary, var(--text-muted));
  line-height: 1.5;
}

.sys-narrative-perf {
  color: var(--text-primary, #e2e8f0);
  font-weight: 500;
}

.sys-model-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sys-model-actions .btn {
  font-size: var(--font-xs);
  padding: 6px 12px;
}

/* ============================================================
   Cascade Training Progress Banner
   ============================================================ */

.sys-cascade-banner {
  background: linear-gradient(135deg, color-mix(in srgb, var(--bg-card) 92%, var(--accent) 8%), var(--bg-card));
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 20px;
  animation: sys-cascade-fadein 0.3s ease;
}

@keyframes sys-cascade-fadein {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.sys-cascade-banner.sys-cascade-done {
  border-color: var(--success);
  background: linear-gradient(135deg, color-mix(in srgb, var(--bg-card) 92%, var(--success) 8%), var(--bg-card));
}

.sys-cascade-banner.sys-cascade-error {
  border-color: var(--error);
  background: linear-gradient(135deg, color-mix(in srgb, var(--bg-card) 92%, var(--error) 8%), var(--bg-card));
}

.sys-cascade-header {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.sys-cascade-title {
  font-weight: 600;
  font-size: var(--font-sm);
  flex: 1;
}

.sys-cascade-current {
  font-weight: 400;
  color: var(--text-muted);
  margin-left: 4px;
}

.sys-cascade-meta {
  font-size: var(--font-xs);
  color: var(--text-muted);
}

.sys-cascade-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
}

.sys-cascade-step {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: var(--font-xs);
  padding: 4px 10px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--bg-card) 70%, transparent);
  border: 1px solid var(--border);
}

.sys-cascade-step.sys-step-done {
  border-color: var(--success);
  color: var(--success);
}

.sys-cascade-step.sys-step-running {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.sys-cascade-step.sys-step-failed {
  border-color: var(--error);
  color: var(--error);
}

.sys-step-icon {
  font-size: 12px;
  line-height: 1;
}

.sys-step-error {
  color: var(--error);
  font-size: 10px;
  margin-left: 4px;
}

.sys-cascade-error-msg {
  margin-top: 10px;
  padding: 8px 12px;
  background: color-mix(in srgb, var(--error) 10%, transparent);
  border-radius: 6px;
  font-size: var(--font-xs);
  color: var(--error);
}

.sys-cascade-spinner,
.sys-cascade-spinner-sm {
  display: inline-block;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: sys-spin 0.8s linear infinite;
}

.sys-cascade-spinner {
  width: 14px;
  height: 14px;
  vertical-align: middle;
  margin-right: 6px;
}

.sys-cascade-spinner-sm {
  width: 10px;
  height: 10px;
}

@keyframes sys-spin {
  to { transform: rotate(360deg); }
}

.sys-training-log-preview {
  margin-top: 8px;
  padding: 8px 12px;
  background: var(--bg-deep, #0f172a);
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-muted);
  white-space: pre-wrap;
  max-height: 120px;
  overflow-y: auto;
  line-height: 1.5;
}

/* ============================================================
   Config Panel
   ============================================================ */

.sys-config-panel {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.sys-config-title {
  font-size: var(--font-sm);
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.sys-config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.sys-config-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sys-config-label {
  font-size: var(--font-xs);
  font-weight: 600;
  color: var(--text-secondary);
}

.sys-config-desc {
  font-size: var(--font-2xs);
  color: var(--text-muted);
  line-height: 1.4;
}

.sys-config-input {
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 6px 10px;
  font-size: var(--font-xs);
  font-family: 'JetBrains Mono', monospace;
  width: 100%;
  box-sizing: border-box;
}

.sys-config-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.15);
}

.sys-config-actions {
  display: flex;
  gap: 8px;
  padding-top: 8px;
}

.sys-config-actions .btn {
  font-size: var(--font-xs);
  padding: 6px 14px;
}

/* Toggle switch */
.sys-toggle {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}

.sys-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.sys-toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--border);
  border-radius: 22px;
  transition: 0.2s;
}

.sys-toggle-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: 0.2s;
}

.sys-toggle input:checked + .sys-toggle-slider {
  background-color: var(--accent);
}

.sys-toggle input:checked + .sys-toggle-slider:before {
  transform: translateX(18px);
}

/* ============================================================
   Run History Panel
   ============================================================ */

.sys-history-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.sys-history-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sys-history-title {
  font-weight: 600;
  font-size: var(--font-base);
}

.sys-history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-sm);
}

.sys-history-table th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  font-size: var(--font-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.sys-history-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.sys-history-table tr:hover td {
  background: var(--bg-card-hover);
}

.sys-row-selected td {
  background: rgba(99, 102, 241, 0.08) !important;
}

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

/* ============================================================
   Compare Modal
   ============================================================ */

.sys-compare-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
}

.sys-compare-modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 800px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}

.sys-compare-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.sys-compare-title {
  font-weight: 600;
  font-size: var(--font-lg);
}

.sys-compare-body {
  padding: 16px 20px;
  overflow-y: auto;
}

.sys-compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-sm);
}

.sys-compare-table th {
  text-align: left;
  padding: 8px 12px;
  font-weight: 600;
  font-size: var(--font-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

.sys-compare-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.sys-compare-table td.mono,
.sys-compare-table th.mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--font-xs);
}

.sys-compare-section {
  font-weight: 700;
  font-size: var(--font-xs);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding-top: 16px !important;
  background: var(--bg-page);
}

.sys-compare-improved {
  color: var(--success);
  font-weight: 600;
}

.sys-compare-degraded {
  color: var(--error);
  font-weight: 600;
}

.sys-compare-changed {
  color: var(--warning);
  font-weight: 600;
  font-size: var(--font-xs);
}

/* ============================================================
   Log viewer
   ============================================================ */

.sys-log-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.sys-log-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sys-log-title {
  font-weight: 600;
  font-size: var(--font-base);
}

.sys-log-body {
  padding: 16px 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--font-xs);
  color: var(--text-secondary);
  white-space: pre-wrap;
  max-height: 400px;
  overflow-y: auto;
  line-height: 1.8;
}

/* ============================================================
   Feature Dictionary
   ============================================================ */

.sys-feature-toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.sys-feature-toolbar input,
.sys-feature-toolbar select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 8px 12px;
  font-size: var(--font-sm);
  font-family: inherit;
}

.sys-feature-toolbar input {
  flex: 1;
  min-width: 200px;
}

.sys-feature-toolbar select {
  min-width: 140px;
}

.sys-feature-count {
  font-size: var(--font-xs);
  color: var(--text-muted);
  margin-left: auto;
}

.sys-feature-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-sm);
}

.sys-feature-table th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  font-size: var(--font-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.sys-feature-table th:hover {
  color: var(--text-secondary);
}

.sys-feature-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.sys-feature-table tr:hover td {
  background: var(--bg-card-hover);
}

.sys-feature-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--font-xs);
  color: var(--text-primary);
}

.sys-tier-badge {
  font-size: var(--font-2xs);
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
}

/* ============================================================
   Drift Report
   ============================================================ */

.sys-drift-timestamp {
  font-size: var(--font-xs);
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* Performance Tracker */
.sys-perf-header { margin-bottom: 20px; }
.sys-perf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.sys-perf-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg, 12px);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sys-perf-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sys-perf-model-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}
.sys-perf-status {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: .3px;
}
.sys-perf-ok { background: rgba(16,185,129,.12); color: #10b981; }
.sys-perf-warn { background: rgba(245,158,11,.12); color: #f59e0b; }
.sys-perf-regressed { background: rgba(239,68,68,.12); color: #ef4444; }
.sys-perf-neutral { background: rgba(100,116,139,.12); color: #94a3b8; }
.sys-perf-metrics {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sys-perf-metric-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sys-perf-metric-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}
.sys-perf-metric-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}
.sys-perf-best { color: var(--accent); }
.sys-perf-pos { color: #10b981; }
.sys-perf-neg { color: #ef4444; }
.sys-perf-spark {
  padding-top: 4px;
  border-top: 1px solid var(--border);
}
.sys-perf-spark-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.sys-perf-spark-bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 36px;
}
.sys-perf-spark-bar {
  flex: 1;
  background: color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 2px 2px 0 0;
  min-height: 2px;
  transition: height .3s;
}
.sys-perf-spark-current {
  background: var(--accent);
}
.sys-perf-rollback-btn {
  margin-top: 4px;
  font-size: 12px;
  padding: 6px 12px;
  border: 1px solid #ef4444;
  color: #ef4444;
  background: rgba(239,68,68,.08);
  cursor: pointer;
  border-radius: 6px;
  font-weight: 600;
  transition: background .15s;
}
.sys-perf-rollback-btn:hover { background: rgba(239,68,68,.15); }

/* Checkpoint regression warning on model cards */
.sys-checkpoint-warn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 10px;
  margin-top: 6px;
  background: rgba(239,68,68,.08);
  border: 1px solid rgba(239,68,68,.2);
  border-radius: 6px;
  font-size: 11px;
  color: #ef4444;
}
.sys-checkpoint-restore-btn {
  background: none;
  border: 1px solid #ef4444;
  color: #ef4444;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s;
}
.sys-checkpoint-restore-btn:hover { background: rgba(239,68,68,.12); }

/* ============================================================
   Data Freshness
   ============================================================ */

.sys-freshness-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.sys-freshness-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.sys-freshness-name {
  font-weight: 600;
  font-size: var(--font-base);
  margin-bottom: 8px;
}

.sys-freshness-meta {
  font-size: var(--font-xs);
  color: var(--text-muted);
  line-height: 1.6;
}

.sys-freshness-meta .fresh { color: var(--success); }
.sys-freshness-meta .stale { color: var(--warning); }
.sys-freshness-meta .missing { color: var(--error); }

/* ============================================================
   Pagination
   ============================================================ */

.sys-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-size: var(--font-sm);
  color: var(--text-muted);
}

.sys-pagination button {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  padding: 6px 12px;
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-xs);
}

.sys-pagination button:hover { border-color: var(--accent); color: var(--accent); }
.sys-pagination button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ============================================================
   Debrief Panel
   ============================================================ */

.sys-debrief-card {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  margin-bottom: 24px;
  overflow: hidden;
}

.sys-debrief-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, transparent 100%);
}

.sys-debrief-title {
  font-weight: 600;
  font-size: var(--font-base);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sys-debrief-icon {
  color: var(--accent);
  font-size: var(--font-lg);
}

.sys-debrief-badge {
  font-size: var(--font-2xs);
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent);
  font-weight: 500;
}

.sys-debrief-body {
  padding: 20px;
}

.sys-debrief-loading {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: var(--font-sm);
  padding: 20px 0;
}

.sys-debrief-content {
  font-size: var(--font-sm);
  color: var(--text-secondary);
  line-height: 1.8;
}

.sys-debrief-content h3.sys-debrief-h2 {
  font-size: var(--font-md);
  font-weight: 700;
  color: var(--text-primary);
  margin: 20px 0 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.sys-debrief-content h3.sys-debrief-h2:first-child {
  margin-top: 0;
}

.sys-debrief-content h4.sys-debrief-h3 {
  font-size: var(--font-base);
  font-weight: 600;
  color: var(--text-primary);
  margin: 16px 0 6px;
}

.sys-debrief-content ul {
  margin: 8px 0;
  padding-left: 20px;
}

.sys-debrief-content li {
  margin-bottom: 4px;
}

.sys-debrief-content strong {
  color: var(--text-primary);
}

.sys-debrief-content p {
  margin: 8px 0;
}

/* Accent button variant */
.btn.btn-accent {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
  color: var(--accent);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.btn.btn-accent:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25) 0%, rgba(139, 92, 246, 0.25) 100%);
  border-color: var(--accent);
}

.btn.btn-accent:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Loading / Empty */
.sys-loading {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.sys-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: var(--font-sm);
}

/* Suite Overview (collapsible) */
.sys-suite-overview {
  margin-bottom: 20px;
  border: 1px solid var(--border, #334155);
  border-radius: var(--radius-lg, 12px);
  background: var(--bg-card, #1e293b);
  overflow: hidden;
}
.sys-suite-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  text-align: left;
  transition: background .15s;
}
.sys-suite-toggle:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }
.sys-suite-toggle svg { transition: transform .2s; flex-shrink: 0; color: var(--accent); }
.sys-suite-body {
  padding: 0 24px 20px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-secondary, #cbd5e1);
}
.sys-suite-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 16px;
}
@media (max-width: 800px) { .sys-suite-cols { grid-template-columns: 1fr; } }
.sys-suite-col p { margin: 4px 0 10px; }
.sys-suite-heading {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--accent, #6366f1);
  margin: 12px 0 4px;
}
.sys-suite-heading:first-child { margin-top: 0; }
.sys-suite-defs { margin: 0; }
.sys-suite-defs dt {
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 6px;
  font-size: 12.5px;
}
.sys-suite-defs dd {
  margin: 1px 0 0 0;
  font-size: 12.5px;
  color: var(--text-secondary);
}
.sys-suite-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 10px 0 4px;
}
.sys-suite-node {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
}
.sys-suite-root {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.sys-suite-independent {
  background: color-mix(in srgb, var(--warning, #f59e0b) 12%, transparent);
  color: var(--warning, #f59e0b);
  border-color: color-mix(in srgb, var(--warning, #f59e0b) 25%, transparent);
}
.sys-suite-arrow {
  color: var(--text-muted);
  font-size: 14px;
}
.sys-suite-pipe {
  color: var(--text-muted);
  font-size: 16px;
  margin: 0 4px;
}
.sys-suite-reading {
  border-top: 1px solid var(--border, #334155);
  padding-top: 12px;
}
.sys-suite-reading p {
  margin: 4px 0 0;
  font-size: 12.5px;
}

/* Metric Glossary */
.sys-glossary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  margin-bottom: 20px;
  background: var(--bg-card, #1e293b);
  border: 1px solid var(--border, #334155);
  border-radius: var(--radius-md, 8px);
}
.sys-glossary-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted, #94a3b8);
  margin-right: 4px;
}
.sys-glossary-chip {
  font-size: 11px;
  color: var(--text-secondary, #cbd5e1);
  padding: 2px 8px;
  background: var(--bg-tertiary, #0f172a);
  border-radius: 4px;
  line-height: 1.5;
}
.sys-glossary-chip strong {
  color: var(--accent, #6366f1);
  margin-right: 4px;
  font-weight: 700;
}

/* Compilation Summary */
.sys-summary {
  background: var(--bg-card, #1e293b);
  border: 1px solid var(--border, #334155);
  border-radius: var(--radius-lg, 12px);
  padding: 20px 24px;
  margin-bottom: 24px;
}
.sys-summary-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 700; color: var(--text-primary);
  margin-bottom: 16px;
}
.sys-summary-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-bottom: 16px;
}
.sys-summary-stat {
  text-align: center;
  padding: 12px 8px;
  background: var(--bg-tertiary, #0f172a);
  border-radius: var(--radius-md, 8px);
}
.sys-summary-val {
  font-size: 22px; font-weight: 700; font-family: 'JetBrains Mono', monospace;
  color: var(--accent, #6366f1);
}
.sys-summary-val.sys-val-ok { color: var(--success, #10b981); }
.sys-summary-val.sys-val-warn { color: var(--warning, #f59e0b); }
.sys-summary-label {
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .5px; color: var(--text-muted, #94a3b8); margin-top: 4px;
}
.sys-summary-narrative {
  font-size: 13px; line-height: 1.6; color: var(--text-secondary, #cbd5e1);
  border-top: 1px solid var(--border, #334155); padding-top: 12px;
}
@media (max-width: 640px) {
  .sys-summary-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Documentation Tab */
.sys-docs { max-width: 900px; }
.sys-docs-section { margin-bottom: 28px; }
.sys-docs-section h2 {
  font-size: 22px; font-weight: 700; color: var(--text-primary);
  margin-bottom: 6px;
}
.sys-docs-section h3 {
  font-size: 16px; font-weight: 700; color: var(--text-primary);
  margin-bottom: 8px;
  padding-bottom: 6px; border-bottom: 1px solid var(--border, #334155);
}
.sys-docs-section p {
  font-size: 14px; line-height: 1.6; color: var(--text-secondary, #cbd5e1);
  margin-bottom: 8px;
}
.sys-docs-section ul {
  padding-left: 20px; margin: 8px 0;
  font-size: 14px; color: var(--text-secondary);
}
.sys-docs-section li { margin-bottom: 4px; }
.sys-docs-section code {
  background: var(--bg-tertiary, #0f172a);
  padding: 2px 6px; border-radius: 4px; font-size: 13px;
  color: var(--accent, #6366f1);
}
.sys-docs-table {
  width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 12px;
}
.sys-docs-table th {
  text-align: left; padding: 8px 12px;
  background: var(--bg-tertiary, #0f172a);
  border-bottom: 2px solid var(--border, #334155);
  font-weight: 700; font-size: 11px; text-transform: uppercase;
  letter-spacing: .5px; color: var(--text-muted, #94a3b8);
}
.sys-docs-table td {
  padding: 8px 12px; border-bottom: 1px solid var(--border, #334155);
  color: var(--text-secondary, #cbd5e1);
}
.sys-docs-table tr:hover td { background: rgba(99,102,241,.03); }
.sys-docs-feat-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}
.sys-docs-feat {
  font-size: 13px; color: var(--text-secondary, #cbd5e1);
  padding: 8px 12px;
  background: var(--bg-tertiary, #0f172a);
  border-radius: var(--radius-sm, 6px);
}
@media (max-width: 640px) { .sys-docs-feat-grid { grid-template-columns: 1fr; } }

/* Rendered markdown docs */
.sys-docs-rendered { max-width: 900px; }
.sys-docs-rendered h1 { font-size: 22px; font-weight: 700; color: var(--text-primary); margin: 24px 0 8px; padding-bottom: 6px; border-bottom: 2px solid var(--border); }
.sys-docs-rendered h2 { font-size: 18px; font-weight: 700; color: var(--text-primary); margin: 20px 0 8px; padding-bottom: 4px; border-bottom: 1px solid var(--border); }
.sys-docs-rendered h3 { font-size: 15px; font-weight: 700; color: var(--text-primary); margin: 16px 0 6px; }
.sys-docs-rendered p { font-size: 14px; line-height: 1.6; color: var(--text-secondary); margin: 8px 0; }
.sys-docs-rendered ul, .sys-docs-rendered ol { padding-left: 20px; margin: 8px 0; font-size: 14px; color: var(--text-secondary); }
.sys-docs-rendered li { margin-bottom: 4px; }
.sys-docs-rendered code { background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px; font-size: 13px; color: var(--accent); }
.sys-docs-rendered pre { background: var(--bg-tertiary); border-radius: 8px; padding: 14px; overflow-x: auto; font-size: 13px; margin: 12px 0; }
.sys-docs-rendered pre code { background: none; padding: 0; }
.sys-docs-rendered table { width: 100%; border-collapse: collapse; font-size: 13px; margin: 12px 0; }
.sys-docs-rendered th { text-align: left; padding: 8px 12px; background: var(--bg-tertiary); border-bottom: 2px solid var(--border); font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); }
.sys-docs-rendered td { padding: 8px 12px; border-bottom: 1px solid var(--border); color: var(--text-secondary); }
.sys-docs-rendered strong { color: var(--text-primary); }
.sys-docs-rendered hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

/* Suite summary LLM output */
.sys-summary-llm {
  font-size: 13px; line-height: 1.7; color: var(--text-secondary);
}
.sys-summary-llm h2 { font-size: 15px; font-weight: 700; color: var(--text-primary); margin: 16px 0 6px; border-bottom: 1px solid var(--border); padding-bottom: 4px; }
.sys-summary-llm h3 { font-size: 14px; font-weight: 700; color: var(--text-primary); margin: 12px 0 4px; }
.sys-summary-llm strong { color: var(--text-primary); }
.sys-summary-llm code { background: var(--bg-tertiary); padding: 1px 5px; border-radius: 3px; font-size: 12px; color: var(--accent); }
.sys-summary-llm ul, .sys-summary-llm ol { padding-left: 18px; margin: 6px 0; }
.sys-summary-llm li { margin-bottom: 4px; }
.sys-summary-llm p { margin: 6px 0; }
.sys-summary-llm hr { border: none; border-top: 1px solid var(--border); margin: 12px 0; }

/* Training plan block */
.sys-plan-block {
  margin-top: 16px; padding: 12px; border-radius: 6px;
  background: var(--bg-tertiary); border: 1px solid var(--border);
}
.sys-plan-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px; font-size: 13px;
}
.sys-plan-count { font-size: 11px; color: var(--text-muted); }
.sys-plan-model { margin-bottom: 8px; }
.sys-plan-model-name {
  font-weight: 700; font-size: 12px; color: var(--accent);
  margin-bottom: 4px; padding-bottom: 3px;
  border-bottom: 1px solid var(--border);
}
.sys-plan-rec {
  display: flex; align-items: center; gap: 8px; padding: 4px 8px;
  font-size: 11px; border-radius: 3px; margin-bottom: 2px;
}
.sys-plan-rec:hover { background: rgba(99,102,241,.04); }
.sys-plan-invalid { background: rgba(239,68,68,.06); }
.sys-plan-param {
  font-family: 'JetBrains Mono', monospace; font-weight: 600;
  background: var(--bg-secondary); padding: 1px 5px; border-radius: 3px;
  color: var(--accent); min-width: 140px;
}
.sys-plan-arrow {
  font-family: 'JetBrains Mono', monospace; color: var(--text-secondary);
}
.sys-plan-ok {
  font-size: 9px; font-weight: 700; color: #10b981;
  background: rgba(16,185,129,.1); padding: 1px 5px; border-radius: 3px;
}
.sys-plan-warn {
  font-size: 9px; font-weight: 700; color: #ef4444;
  background: rgba(239,68,68,.1); padding: 1px 5px; border-radius: 3px;
  cursor: help;
}

/* Model headline */
.sys-model-headline {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; font-weight: 600;
  color: var(--accent); margin-top: 4px;
  padding: 4px 8px; border-radius: 4px;
  background: rgba(99,102,241,.06);
  border-left: 3px solid var(--accent);
}

/* Model card metric chips */
.sys-metric-row {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px;
}
.sys-metric-chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 8px; border-radius: 4px;
  font-size: 11px; font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
}
.sys-metric-chip strong { font-weight: 700; }
.sys-chip-good { background: rgba(16,185,129,.12); color: #10b981; }
.sys-chip-warn { background: rgba(245,158,11,.12); color: #f59e0b; }
.sys-chip-bad { background: rgba(239,68,68,.12); color: #ef4444; }
.sys-chip-info { background: rgba(99,102,241,.1); color: var(--accent); }

/* Feature importances block */
.sys-features-block {
  margin-top: 8px;
  padding: 8px 10px;
  background: color-mix(in srgb, var(--bg-card) 85%, var(--bg-tertiary, #1e293b) 15%);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.sys-features-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.sys-features-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.sys-features-count {
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  font-weight: 500;
}

.sys-features-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sys-feature-item {
  display: grid;
  grid-template-columns: 16px 1fr 80px 42px;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  line-height: 1.6;
}

.sys-feature-rank {
  font-size: 9px;
  color: var(--text-muted);
  text-align: right;
  font-family: 'JetBrains Mono', monospace;
}

.sys-feature-name-lbl {
  color: var(--text-primary, #e2e8f0);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sys-feature-bar-wrap {
  height: 6px;
  background: color-mix(in srgb, var(--border) 60%, transparent);
  border-radius: 3px;
  overflow: hidden;
}

.sys-feature-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.4s ease;
  min-width: 2px;
}

.sys-feature-pct {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary, var(--text-muted));
  text-align: right;
}

/* M6 Rules-engine distribution bars */
.sys-m6-distribution { display: flex; flex-direction: column; gap: 3px; }
.sys-m6-dist-row {
  display: grid;
  grid-template-columns: 80px 1fr 52px;
  align-items: center;
  gap: 6px;
}
.sys-m6-dist-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: right;
}
.sys-m6-bar-accelerating { background: #22c55e; }
.sys-m6-bar-growing { background: #3b82f6; }
.sys-m6-bar-stable { background: #f59e0b; }
.sys-m6-bar-declining { background: #6b7280; }
.sys-m6-align-high { background: #22c55e; }
.sys-m6-align-medium { background: #f59e0b; }
.sys-m6-align-low { background: #6b7280; }

/* M3 Segment Profiles */
.sys-segment-baseline {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--bg-tertiary, rgba(255,255,255,0.03));
  border-radius: 6px;
  margin-bottom: 8px;
  border-left: 3px solid var(--text-muted, #6b7280);
}
.sys-segment-baseline-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.sys-segment-baseline-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}
.sys-segment-baseline-detail {
  font-size: 10px;
  color: var(--text-muted);
  margin-left: auto;
}
.sys-segment-profiles { display: flex; flex-direction: column; gap: 10px; }
.sys-segment-team { display: flex; flex-direction: column; gap: 3px; }
.sys-segment-team-name {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--border-color, rgba(255,255,255,0.06));
  margin-bottom: 2px;
}
.sys-segment-row {
  display: grid;
  grid-template-columns: 160px 1fr 52px;
  align-items: center;
  gap: 6px;
}
.sys-segment-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}