/* ================================================================
   TRAIN TAB - Dev Cockpit Training Panel
   Glassmorphic Design System
   ================================================================ */

/* ----- Keyframe animations ----- */
@keyframes train-status-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}
@keyframes train-log-fadein {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ----- Train panel layout ----- */
#dc-panel-train {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  gap: 0;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  background: var(--tc-glass-bg, rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  color: var(--dc-text);
}
#dc-panel-train .train-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  grid-template-areas:
    "terminal progress"
    "logs     reports";
  gap: 1px;
  min-height: 0;
  overflow: hidden;
  background: var(--tc-glass-border, rgba(148, 163, 184, 0.08));
}

/* ----- Training controls bar ----- */
.train-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  background: var(--tc-glass-bg-sidebar, rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  border-bottom: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  flex-shrink: 0;
  flex-wrap: wrap;
}
.train-controls label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  text-transform: uppercase;
}
.train-controls select {
  background: var(--tc-glass-bg-input, rgba(255, 255, 255, 0.05));
  border: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
  font-size: 12px;
  padding: 4px 8px;
  border-radius: var(--tc-radius-sm, 8px);
  cursor: pointer;
  outline: none;
  font-family: inherit;
  min-width: 100px;
  transition: all 0.2s ease;
}
.train-controls select:focus {
  border-color: var(--tc-primary, #3B82F6);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.2);
}
.train-controls select option {
  background: var(--tc-glass-bg-active, rgba(255, 255, 255, 0.14));
  color: rgba(255, 255, 255, 0.8);
}

.train-btn-start,
.train-btn-stop {
  padding: 5px 16px;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--tc-radius-sm, 8px);
  cursor: pointer;
  letter-spacing: .03em;
  transition: all 0.2s ease;
}
.train-btn-start {
  background: var(--tc-success, #14b8a6);
  color: #0a0a0a;
}
.train-btn-start:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 12px rgba(20, 184, 166, 0.3);
}
.train-btn-start:disabled {
  opacity: 0.4;
  cursor: default;
  filter: none;
  box-shadow: none;
}
.train-btn-stop {
  background: var(--tc-danger, #ef4444);
  color: #fff;
}
.train-btn-stop:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.3);
}
.train-btn-stop:disabled {
  opacity: 0.4;
  cursor: default;
  filter: none;
  box-shadow: none;
}
.train-btn-force-stop {
  background: #8b0000;
  color: #fff;
  font-size: 11px;
  border-radius: var(--tc-radius-sm, 8px);
  transition: all 0.2s ease;
}
.train-btn-force-stop:hover {
  filter: brightness(1.2);
  box-shadow: 0 0 12px rgba(139, 0, 0, 0.3);
}
.train-btn-force-stop:disabled {
  opacity: 0.4;
  cursor: default;
  filter: none;
  box-shadow: none;
}

/* Cleanup button */
.train-btn-cleanup {
  background: var(--tc-warning, #f59e0b);
  color: #000;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--tc-radius-sm, 8px);
  transition: all 0.2s ease;
}
.train-btn-cleanup:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.3);
}
.train-btn-cleanup:disabled {
  opacity: 0.5;
  cursor: default;
  filter: none;
  box-shadow: none;
}
.train-btn-cleanup #train-stale-count {
  font-weight: 700;
}

/* Confirmation overlay */
.train-confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 100000;
  background: rgba(0, 0, 0, 0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
}
.train-confirm-overlay.train-confirm-visible {
  background: rgba(0, 0, 0, 0.75);
}
.train-confirm-dialog {
  background: var(--tc-glass-bg-active, rgba(255, 255, 255, 0.14));
  backdrop-filter: blur(var(--tc-glass-blur-heavy, 24px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur-heavy, 24px));
  border: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  border-radius: var(--tc-radius-lg, 16px);
  padding: 32px;
  max-width: 460px;
  width: 90%;
  text-align: center;
  transform: scale(0.9);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  box-shadow: var(--tc-shadow-2xl, 0 25px 50px -12px rgba(0, 0, 0, 0.5));
}
.train-confirm-visible .train-confirm-dialog {
  transform: scale(1);
  opacity: 1;
}
.train-confirm-icon {
  font-size: 48px;
  margin-bottom: 8px;
  line-height: 1;
}
.train-confirm-title {
  color: #fff;
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 12px 0;
}
.train-confirm-text {
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
  font-size: 14px;
  line-height: 1.5;
  margin: 0 0 16px 0;
}
.train-confirm-text strong {
  color: var(--tc-warning, #f59e0b);
}
.train-confirm-summary {
  background: var(--tc-glass-bg-input, rgba(255, 255, 255, 0.05));
  border-radius: var(--tc-radius-sm, 8px);
  padding: 12px 16px;
  margin: 0 0 12px 0;
  display: flex;
  justify-content: space-around;
  gap: 12px;
  font-size: 13px;
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
}
.train-confirm-summary strong {
  color: var(--tc-primary, #3B82F6);
}
.train-confirm-warn {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: var(--tc-radius-sm, 6px);
  padding: 10px 14px;
  font-size: 12px;
  color: var(--tc-warning, #f59e0b);
  margin: 0 0 20px 0;
}
.train-confirm-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.train-confirm-actions .train-btn {
  min-width: 120px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: var(--tc-radius-sm, 8px);
  cursor: pointer;
  transition: all 0.2s ease;
}
.train-btn-cancel {
  background: var(--tc-glass-bg-hover, rgba(255, 255, 255, 0.10));
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
  border: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
}
.train-btn-cancel:hover {
  background: var(--tc-glass-bg-active, rgba(255, 255, 255, 0.14));
  color: rgba(255, 255, 255, 0.8);
}

/* Status indicator dot */
.train-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  transition: all 0.3s ease;
}
.train-status-dot.running {
  background: var(--tc-success, #14b8a6);
  box-shadow: 0 0 12px rgba(20, 184, 166, 0.5);
  animation: train-status-pulse 1.4s ease-in-out infinite;
}
.train-status-dot.stopped {
  background: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  animation: none;
}
.train-status-dot.error {
  background: var(--tc-danger, #ef4444);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.5);
  animation: train-status-pulse 0.8s ease-in-out infinite;
}

.train-status-label {
  font-size: 11px;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  margin-left: -4px;
}

/* ----- Progress section ----- */
.train-progress {
  grid-area: progress;
  background: var(--tc-glass-bg, rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 0;
}
.train-progress-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.train-progress-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
}
.train-progress-label span {
  color: rgba(255, 255, 255, 0.8);
  font-variant-numeric: tabular-nums;
}
.train-progress-track {
  width: 100%;
  height: 8px;
  background: var(--tc-glass-bg-input, rgba(255, 255, 255, 0.05));
  border-radius: 4px;
  overflow: hidden;
}
.train-progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.5s ease;
  width: 0%;
}
.train-progress-fill.phase {
  background: linear-gradient(90deg, var(--tc-primary, #3B82F6), #60a5fa);
}
.train-progress-fill.epoch {
  background: linear-gradient(90deg, var(--tc-success, #14b8a6), #2dd4bf);
}

/* Loss display */
.train-loss-display {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.train-loss-value {
  font-size: 28px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: -0.02em;
}
.train-loss-label {
  font-size: 11px;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* KPI cards grid */
.train-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}
.train-kpi-card {
  background: var(--tc-glass-bg, rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  border: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  border-radius: var(--tc-radius-sm, 8px);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: all 0.2s ease;
}
.train-kpi-card:hover {
  background: var(--tc-glass-bg-hover, rgba(255, 255, 255, 0.10));
  border: var(--tc-glass-border-hover, 1px solid rgba(148, 163, 184, 0.15));
}
.train-kpi-card-value {
  font-size: 18px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.9);
}
.train-kpi-card-label {
  font-size: 10px;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ----- Terminal section ----- */
.train-terminal {
  grid-area: terminal;
  background: var(--tc-glass-bg, rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(var(--tc-glass-blur, 16px)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px)) saturate(140%);
  min-height: 300px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  resize: vertical;
}
.train-terminal-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--tc-glass-bg-sidebar, rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  border-bottom: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
}
.train-terminal-body {
  flex: 1;
  min-height: 0;
  width: 100%;
  overflow: hidden;
  position: relative;
}
/* xterm.js container inside the train terminal */
.train-terminal-body .xterm {
  position: absolute !important;
  left: 0 !important;
  top: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  width: auto !important;
  height: auto !important;
}

/* ----- Log viewer ----- */
.train-logs {
  grid-area: logs;
  background: var(--tc-glass-bg, rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.train-logs-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--tc-glass-bg-sidebar, rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  border-bottom: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
}
.train-logs-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 11.5px;
  line-height: 1.55;
}
.train-log-line {
  padding: 2px 10px;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  border-bottom: var(--tc-glass-border-subtle, 1px solid rgba(255, 255, 255, 0.04));
  white-space: pre-wrap;
  word-break: break-all;
  animation: train-log-fadein 0.25s ease;
  transition: all 0.2s ease;
}
.train-log-line:hover {
  background: var(--tc-glass-bg-hover, rgba(255, 255, 255, 0.10));
  color: rgba(255, 255, 255, 0.8);
}
.train-log-line.error {
  color: var(--tc-danger, #ef4444);
}
.train-log-line.warn {
  color: var(--tc-warning, #f59e0b);
}
.train-log-line .log-ts {
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  margin-right: 8px;
  font-size: 10px;
}

/* Thin scrollbar for logs */
.train-logs-body::-webkit-scrollbar { width: 8px; }
.train-logs-body::-webkit-scrollbar-track { background: rgba(0, 0, 0, 0.15); }
.train-logs-body::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.15); border-radius: 4px; }
.train-logs-body::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, 0.25); }

/* ----- Reports section ----- */
.train-reports {
  grid-area: reports;
  background: var(--tc-glass-bg, rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.train-reports-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--tc-glass-bg-sidebar, rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  border-bottom: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
}
.train-reports-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0;
  margin: 0;
  list-style: none;
}
.train-report-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: var(--tc-glass-border-subtle, 1px solid rgba(255, 255, 255, 0.04));
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 12px;
}
.train-report-item:hover {
  background: var(--tc-glass-bg-hover, rgba(255, 255, 255, 0.10));
}
.train-report-icon {
  flex-shrink: 0;
  font-size: 14px;
  color: var(--tc-primary, #3B82F6);
}
.train-report-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.train-report-name {
  color: rgba(255, 255, 255, 0.8);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.train-report-meta {
  font-size: 10px;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  display: flex;
  gap: 10px;
}
.train-report-date,
.train-report-size {
  white-space: nowrap;
}

/* Thin scrollbar for reports */
.train-reports-list::-webkit-scrollbar { width: 8px; }
.train-reports-list::-webkit-scrollbar-track { background: rgba(0, 0, 0, 0.15); }
.train-reports-list::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.15); border-radius: 4px; }
.train-reports-list::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, 0.25); }

/* ----- Mobile responsive (max-width: 768px) ----- */
@media (max-width: 768px) {
  #dc-panel-train .train-body {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto;
    grid-template-areas:
      "terminal"
      "progress"
      "logs"
      "reports";
    overflow-y: auto;
  }

  .train-controls {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 12px;
  }
  .train-controls select,
  .train-btn-start,
  .train-btn-stop {
    min-height: 44px;
    font-size: 14px;
    padding: 8px 16px;
  }
  .train-controls label {
    font-size: 12px;
    width: 100%;
  }

  .train-terminal {
    min-height: 250px;
    resize: none;
  }

  .train-progress {
    padding: 10px;
  }
  .train-loss-value {
    font-size: 22px;
  }
  .train-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .train-kpi-card {
    padding: 8px;
  }
  .train-kpi-card-value {
    font-size: 15px;
  }

  .train-logs-body {
    max-height: 300px;
    font-size: 11px;
  }
  .train-log-line {
    padding: 4px 10px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .train-report-item {
    min-height: 44px;
    padding: 10px 12px;
  }
  .train-report-name {
    font-size: 13px;
  }
  .train-report-meta {
    font-size: 11px;
  }
}


/* ================================================================
   TRAIN PAGE -- NVIDIA-style dashboard (3-row vertical layout)
   Glassmorphic Design System
   ================================================================ */

/* Main layout: vertical flex column */
.train-layout {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 56px);
  max-height: calc(100vh - 56px);
  overflow: hidden;
  background: var(--tc-glass-bg, rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  flex: 1;
  min-width: 0;
}

/* ---- ROW 1: Control Bar ---- */
.train-control-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: var(--tc-glass-bg-sidebar, rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  border-bottom: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  flex-shrink: 0;
  height: 56px;
  box-sizing: border-box;
}
.train-bar-title {
  font-size: 15px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
  white-space: nowrap;
}
.train-bar-select {
  padding: 6px 10px;
  background: var(--tc-glass-bg-input, rgba(255, 255, 255, 0.05));
  border: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  border-radius: var(--tc-radius-sm, 8px);
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  outline: none;
  min-width: 120px;
  transition: all 0.2s ease;
  backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur-light, 8px));
}
.train-bar-select:focus {
  border-color: var(--tc-primary, #3B82F6);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.2);
}
.train-bar-select:disabled { opacity: 0.5; cursor: default; }
.train-bar-select-model { min-width: 220px; }
.train-bar-spacer { flex: 1; }

/* Shared button base */
.train-layout .train-btn {
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--tc-radius-sm, 8px);
  cursor: pointer;
  letter-spacing: .03em;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.train-layout .train-btn-start {
  background: var(--tc-primary, #3B82F6);
  color: #fff;
}
.train-layout .train-btn-start:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.3);
}
.train-layout .train-btn-start:disabled { opacity: 0.35; cursor: default; filter: none; box-shadow: none; }
.train-layout .train-btn-stop {
  background: var(--tc-danger, #ef4444);
  color: #fff;
}
.train-layout .train-btn-stop:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.3);
}
.train-layout .train-btn-stop:disabled { opacity: 0.35; cursor: default; filter: none; box-shadow: none; }
.train-layout .train-btn-force-stop { background: #8b0000; color: #fff; font-size: 11px; }
.train-layout .train-btn-force-stop:hover {
  filter: brightness(1.2);
  box-shadow: 0 0 12px rgba(139, 0, 0, 0.3);
}
.train-layout .train-btn-force-stop:disabled { opacity: 0.35; cursor: default; filter: none; box-shadow: none; }
.train-layout .train-btn-cleanup {
  background: var(--tc-warning, #f59e0b);
  color: #000;
  font-size: 12px;
  font-weight: 600;
}
.train-layout .train-btn-cleanup:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.3);
}
.train-layout .train-btn-cleanup:disabled { opacity: 0.5; cursor: default; filter: none; box-shadow: none; }
.train-layout .train-btn-cleanup #train-stale-count { font-weight: 700; }

/* Storage badge */
.train-storage-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  flex-shrink: 0;
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}
.train-storage-icon { font-size: 12px; }

/* Status badge */
.train-status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  flex-shrink: 0;
  transition: all 0.2s ease;
}
.train-badge-idle {
  background: var(--tc-glass-bg-hover, rgba(255, 255, 255, 0.10));
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
}
.train-badge-running {
  background: rgba(59, 130, 246, 0.15);
  color: var(--tc-primary, #3B82F6);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.3);
  animation: train-status-pulse 1.5s ease-in-out infinite;
}
.train-badge-completed {
  background: rgba(20, 184, 166, 0.15);
  color: var(--tc-success, #14b8a6);
}

/* ---- Time info strip ---- */
.train-time-strip {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 6px 20px;
  background: var(--tc-glass-bg-sidebar, rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  border-bottom: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  flex-shrink: 0;
}
.train-time-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
}
.train-time-item:first-child { padding-left: 0; }
.train-time-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
}
.train-time-value {
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
  white-space: nowrap;
}
.train-time-value.train-time-active {
  color: var(--tc-primary, #3B82F6);
}
.train-time-value.train-time-done {
  color: var(--tc-success, #14b8a6);
}
.train-time-sep {
  width: 1px;
  height: 18px;
  background: rgba(148, 163, 184, 0.08);
  flex-shrink: 0;
}
/* Elapsed (used in time strip) */
.train-elapsed {
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
  white-space: nowrap;
}

/* ---- ROW 2: Dashboard Grid ---- */
.train-dashboard {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: 1fr;
  gap: 8px;
  padding: 8px 12px;
  flex: 0 0 170px;
  overflow: hidden;
  min-height: 30px;
}

/* Dashboard cards */
.train-dash-card {
  background: var(--tc-glass-bg, rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  border: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  border-radius: var(--tc-radius-lg, 16px);
  box-shadow: var(--tc-shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.3));
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
  transition: all 0.2s ease;
}
.train-dash-card:hover {
  background: var(--tc-glass-bg-hover, rgba(255, 255, 255, 0.10));
  border: var(--tc-glass-border-hover, 1px solid rgba(148, 163, 184, 0.15));
  box-shadow: var(--tc-shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.4));
}
.train-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 8px;
  border-bottom: var(--tc-glass-border-subtle, 1px solid rgba(255, 255, 255, 0.04));
  flex-shrink: 0;
}
.train-card-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: #fff;
}
.train-card-value {
  font-size: 11px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: #fff;
}
.train-card-value.train-loss-val { color: var(--tc-danger, #ef4444); }
.train-loss-good { color: var(--tc-success, #14b8a6) !important; }
.train-loss-ok   { color: var(--tc-warning, #f59e0b) !important; }
.train-loss-high { color: var(--tc-danger, #ef4444) !important; }

.train-card-body {
  flex: 1;
  min-height: 0;
  padding: 4px 6px;
  display: flex;
  align-items: stretch;
}
.train-card-body canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Gauge + sparkline layout inside card */
.train-card-gauge-body {
  display: flex;
  gap: 8px;
}
.train-gauge-wrap {
  flex: 0 0 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}
.train-gauge {
  width: 100%;
  max-width: 120px;
}
.train-gauge-label {
  font-size: 8px;
  color: #fff;
  text-align: center;
  margin-top: -4px;
}
.train-spark-wrap {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: stretch;
}
.train-spark-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Progress card: ring + bars */
.train-card-progress-body {
  display: flex;
  gap: 12px;
  align-items: center;
}
.train-ring-wrap {
  flex: 0 0 auto;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.train-ring {
  width: 100%;
  height: auto;
  max-width: 80px;
  min-width: 28px;
}
.train-ring-text {
  position: absolute;
  font-size: 10px;
  font-weight: 700;
  color: var(--tc-primary, #3B82F6);
  font-variant-numeric: tabular-nums;
}
.train-bars-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
  justify-content: center;
}
.train-minibar-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.train-minibar-label {
  display: flex;
  justify-content: space-between;
  font-size: 8px;
  color: #fff;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.train-minibar-label span:last-child {
  font-variant-numeric: tabular-nums;
  color: #fff;
}
.train-minibar-track {
  width: 100%;
  height: 4px;
  background: var(--tc-glass-bg-input, rgba(255, 255, 255, 0.05));
  border-radius: 3px;
  overflow: hidden;
}
.train-minibar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s ease;
  width: 0%;
}
.train-minibar-fill.phase { background: linear-gradient(90deg, var(--tc-primary, #3B82F6), #60a5fa); }
.train-minibar-fill.epoch { background: linear-gradient(90deg, var(--tc-success, #14b8a6), #2dd4bf); }
.train-minibar-fill.step  { background: linear-gradient(90deg, var(--tc-warning, #f59e0b), #fbbf24); }

/* ---- Resize handle (drag splitter between dashboard & terminal) ---- */
.train-resize-handle {
  height: 8px;
  background: var(--tc-glass-bg-input, rgba(255, 255, 255, 0.05));
  cursor: ns-resize;
  flex: 0 0 8px;
  position: relative;
  transition: background 0.15s ease, box-shadow 0.15s ease;
  z-index: 5;
}
.train-resize-handle:hover,
.train-resize-handle.active {
  background: var(--tc-primary, #3B82F6);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.3);
}
.train-resize-handle::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 3px;
  background: rgba(148, 163, 184, 0.25);
  border-radius: 2px;
}
.train-resize-handle:hover::after,
.train-resize-handle.active::after {
  background: rgba(255, 255, 255, 0.5);
}

/* ---- ROW 3: Bottom (terminal/logs/reports) ---- */
.train-bottom {
  flex: 1 1 0;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--tc-glass-bg, rgba(255, 255, 255, 0.06));
  backdrop-filter: blur(var(--tc-glass-blur, 16px)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px)) saturate(140%);
}

/* Output tab bar */
.train-output-tabs {
  display: flex;
  align-items: stretch;
  background: var(--tc-glass-bg-sidebar, rgba(255, 255, 255, 0.04));
  backdrop-filter: blur(var(--tc-glass-blur, 16px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur, 16px));
  border-bottom: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  flex-shrink: 0;
  height: 34px;
}
.train-otab {
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  color: var(--tc-text-muted, rgba(255, 255, 255, 0.4));
  background: none;
  border: none;
  border-top: 2px solid transparent;
  cursor: pointer;
  letter-spacing: .03em;
  transition: all 0.2s ease;
}
.train-otab:hover {
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
  background: var(--tc-glass-bg-hover, rgba(255, 255, 255, 0.10));
}
.train-otab.active {
  color: var(--tc-primary, #3B82F6);
  border-top-color: var(--tc-primary, #3B82F6);
  background: var(--tc-glass-bg-active, rgba(255, 255, 255, 0.14));
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.15);
}

/* Output panels */
.train-output-panel {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  padding-bottom: 8px;
  position: relative;
  background: #000;
}
.train-panel-hidden {
  display: none !important;
}

/* Terminal container */
.train-terminal-container {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 8px;
  overflow: hidden;
}
.train-terminal-container .xterm {
  width: 100% !important;
  height: 100% !important;
}
.train-terminal-container .xterm-viewport {
  overflow-y: auto !important;
}

/* Log viewer (HTML log display) */
.train-logs-viewer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 8px;
  overflow-y: auto;
  padding: 0;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 11.5px;
  line-height: 1.55;
  background: #000;
  color: #fff;
}
.train-logs-viewer .train-log-line {
  padding: 2px 10px;
  color: #fff;
  border-bottom: var(--tc-glass-border-subtle, 1px solid rgba(255, 255, 255, 0.04));
  white-space: pre-wrap;
  word-break: break-all;
  animation: train-log-fadein 0.2s ease;
  transition: all 0.2s ease;
}
.train-logs-viewer .train-log-line:hover {
  background: rgba(255, 255, 255, 0.10);
  color: #fff;
}
.train-logs-viewer .train-log-error { color: var(--tc-danger, #ef4444); }
.train-logs-viewer .train-log-warn  { color: var(--tc-warning, #f59e0b); }
.train-logs-viewer .train-log-phase { color: var(--tc-primary, #3B82F6); }
.train-logs-viewer::-webkit-scrollbar { width: 8px; }
.train-logs-viewer::-webkit-scrollbar-track { background: rgba(0, 0, 0, 0.15); }
.train-logs-viewer::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.15); border-radius: 4px; }
.train-logs-viewer::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, 0.25); }

/* Reports list */
.train-reports-list {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 8px;
  overflow-y: auto;
  padding: 0;
  background: #000;
  color: #fff;
}
.train-report-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  text-decoration: none;
  font-size: 12px;
  transition: all 0.2s ease;
}
.train-report-item:hover {
  background: rgba(255, 255, 255, 0.10);
}
.train-report-item:last-child { border-bottom: none; }
.train-report-icon { color: var(--tc-primary, #3B82F6); font-size: 14px; flex-shrink: 0; }
.train-report-name { color: #fff; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.train-report-date { color: rgba(255, 255, 255, 0.7); font-size: 10px; white-space: nowrap; flex-shrink: 0; }
.train-empty {
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
  padding: 14px;
  display: block;
}
.train-reports-list::-webkit-scrollbar { width: 8px; }
.train-reports-list::-webkit-scrollbar-track { background: rgba(0, 0, 0, 0.15); }
.train-reports-list::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, 0.15); border-radius: 4px; }
.train-reports-list::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, 0.25); }

/* Confirmation overlay (glassmorphic elevated) */
.train-confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 100000;
  background: rgba(0,0,0,0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
}
.train-confirm-overlay.train-confirm-visible { background: rgba(0,0,0,0.75); }
.train-confirm-dialog {
  background: var(--tc-glass-bg-active, rgba(255, 255, 255, 0.14));
  backdrop-filter: blur(var(--tc-glass-blur-heavy, 24px));
  -webkit-backdrop-filter: blur(var(--tc-glass-blur-heavy, 24px));
  border: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
  border-radius: var(--tc-radius-lg, 16px);
  padding: 32px;
  max-width: 460px;
  width: 90%;
  text-align: center;
  transform: scale(0.9);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  box-shadow: var(--tc-shadow-2xl, 0 25px 50px -12px rgba(0, 0, 0, 0.5));
}
.train-confirm-visible .train-confirm-dialog { transform: scale(1); opacity: 1; }
.train-confirm-icon { font-size: 48px; margin-bottom: 8px; line-height: 1; }
.train-confirm-title { color: #fff; font-size: 20px; font-weight: 600; margin: 0 0 12px 0; }
.train-confirm-text { color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6)); font-size: 14px; line-height: 1.5; margin: 0 0 16px 0; }
.train-confirm-text strong { color: var(--tc-warning, #f59e0b); }
.train-confirm-summary {
  background: var(--tc-glass-bg-input, rgba(255, 255, 255, 0.05));
  border-radius: var(--tc-radius-sm, 8px);
  padding: 12px 16px;
  margin: 0 0 12px 0;
  display: flex;
  justify-content: space-around;
  gap: 12px;
  font-size: 13px;
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
}
.train-confirm-summary strong { color: var(--tc-primary, #3B82F6); }
.train-confirm-warn {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: var(--tc-radius-sm, 6px);
  padding: 10px 14px;
  font-size: 12px;
  color: var(--tc-warning, #f59e0b);
  margin: 0 0 20px 0;
}
.train-confirm-actions { display: flex; gap: 12px; justify-content: center; }
.train-confirm-actions .train-btn {
  min-width: 120px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: var(--tc-radius-sm, 8px);
  cursor: pointer;
  transition: all 0.2s ease;
}
.train-btn-cancel {
  background: var(--tc-glass-bg-hover, rgba(255, 255, 255, 0.10));
  color: var(--tc-text-secondary, rgba(255, 255, 255, 0.6));
  border: var(--tc-glass-border, 1px solid rgba(148, 163, 184, 0.08));
}
.train-btn-cancel:hover {
  background: var(--tc-glass-bg-active, rgba(255, 255, 255, 0.14));
  color: rgba(255, 255, 255, 0.8);
}

/* ---- Responsive: 1200px -> 2-col grid ---- */
@media (max-width: 1200px) {
  .train-dashboard {
    grid-template-columns: repeat(3, 1fr);
    max-height: 340px;
  }
  .train-control-bar {
    flex-wrap: wrap;
    height: auto;
    padding: 8px 16px;
  }
}

/* ---- Responsive: 768px -> mobile-optimized compact layout ---- */
@media (max-width: 768px) {
  .train-layout {
    height: auto;
    max-height: none;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 68px; /* space for mobile bottom nav */
  }

  /* ---- Control bar: clean 2-row layout ---- */
  .train-control-bar {
    flex-wrap: wrap;
    height: auto;
    gap: 6px;
    padding: 10px 12px;
  }
  .train-bar-title {
    font-size: 16px;
    font-weight: 700;
    flex: 0 0 auto;
  }
  .train-bar-spacer { flex: 1 1 0; min-width: 0; }
  .train-storage-badge {
    font-size: 12px;
    padding: 4px 10px;
  }
  .train-cat-breakdown-btn {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }
  .train-status-badge {
    font-size: 11px;
    padding: 4px 10px;
  }
  .train-bar-select {
    min-height: 40px;
    font-size: 14px;
    flex: 1 1 100%;
    order: 10;
  }
  .train-layout .train-btn {
    min-height: 40px;
    font-size: 13px;
    font-weight: 700;
    padding: 8px 12px;
    flex: 1 1 0;
    border-radius: 8px;
  }
  .train-layout .train-btn-start,
  .train-layout .train-btn-stop,
  .train-layout .train-btn-force-stop {
    order: 11;
  }
  .train-layout .train-btn-cleanup {
    order: 12;
    flex: 1 1 100%;
  }

  /* ---- Time strip: inline row ---- */
  .train-time-strip {
    flex-wrap: nowrap;
    gap: 0;
    padding: 6px 12px;
    justify-content: space-around;
  }
  .train-time-sep { display: none; }
  .train-time-item {
    padding: 2px 4px;
    gap: 4px;
    text-align: center;
  }
  .train-time-label { font-size: 9px; letter-spacing: 0.5px; }
  .train-time-value { font-size: 13px; font-weight: 700; }

  /* ---- Dashboard: 2-column compact grid on mobile ---- */
  .train-dashboard {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
    max-height: none;
    overflow: visible;
    padding: 6px 8px;
    gap: 6px;
    flex: 0 0 auto;
  }
  .train-dash-card {
    min-height: 0;
    border-radius: 8px;
    overflow: hidden;
  }
  .train-card-header {
    padding: 8px 10px 4px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .train-card-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
  }
  .train-card-value {
    font-size: 13px;
    font-weight: 700;
  }

  /* Gauge cards: stack vertically, compact */
  .train-card-gauge-body {
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 0 8px 6px;
  }
  .train-gauge-wrap {
    flex: 0 0 auto;
    padding: 0;
    width: 100%;
    display: flex;
    justify-content: center;
  }
  .train-gauge {
    max-width: 80px;
  }
  .train-gauge-label {
    font-size: 9px;
    margin-top: -6px;
  }
  .train-spark-wrap {
    width: 100%;
    min-height: 30px;
    max-height: 36px;
  }

  /* Chart cards: compact canvas */
  .train-card-body {
    padding: 2px 8px 6px;
    min-height: 40px;
  }
  .train-card-body canvas {
    width: 100% !important;
    height: 36px !important;
  }

  /* Progress card: vertical compact ring + bars */
  .train-card-progress-body {
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 0 8px 6px;
  }
  .train-ring-wrap {
    flex: 0 0 auto;
  }
  .train-ring {
    width: 48px;
    height: 48px;
  }
  .train-ring-text { font-size: 11px; }
  .train-bars-wrap {
    width: 100%;
    gap: 4px;
  }
  .train-minibar-label { font-size: 9px; }
  .train-minibar-track { height: 5px; }

  /* Hide resize handle on mobile */
  .train-resize-handle {
    display: none;
  }

  /* ---- Bottom section: fill remaining space ---- */
  .train-bottom {
    min-height: 250px;
    flex: 1 1 auto;
  }

  /* Tab bar: touch-friendly */
  .train-output-tabs {
    height: 40px;
  }
  .train-otab {
    padding: 0 14px;
    font-size: 13px;
    font-weight: 600;
    min-height: 40px;
  }

  /* Terminal: improve scroll */
  .train-terminal-container {
    -webkit-overflow-scrolling: touch;
  }
  .train-logs-viewer {
    font-size: 11px;
    -webkit-overflow-scrolling: touch;
  }
  .train-logs-viewer .train-log-line {
    padding: 4px 10px;
    min-height: 32px;
    display: flex;
    align-items: center;
  }

  /* Reports: touch-friendly */
  .train-report-item {
    padding: 10px 12px;
    min-height: 44px;
  }
  .train-report-name { font-size: 13px; }
  .train-report-date { font-size: 10px; }

  /* Confirm dialog */
  .train-confirm-dialog {
    padding: 24px 16px;
    max-width: 95%;
    border-radius: var(--tc-radius-md, 10px);
  }
  .train-confirm-title { font-size: 18px; }
  .train-confirm-text { font-size: 13px; }
  .train-confirm-actions {
    flex-direction: column;
    gap: 8px;
  }
  .train-confirm-actions .train-btn {
    min-width: 100%;
    min-height: 48px;
    font-size: 15px;
  }

  /* Completion dialog: mobile-friendly */
  .train-completion-dialog {
    width: 95vw;
    max-width: 95vw;
  }
  .train-dialog-header {
    padding: 16px 16px 12px;
    gap: 10px;
  }
  .train-dialog-icon { font-size: 24px; }
  .train-dialog-header h3 { font-size: 16px; }
  .train-dialog-body { padding: 12px 16px 16px; }
  .train-dialog-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .train-dialog-stat-label { font-size: 10px; }
  .train-dialog-stat-value { font-size: 14px; }
  .train-dialog-health { font-size: 12px; padding: 6px 10px; }
  .train-dialog-cats { font-size: 11px; }
  .train-dialog-close-btn {
    min-height: 44px;
    font-size: 14px;
    padding: 8px 40px;
  }

  /* Categories panel: compact */
  .train-categories-panel {
    margin-bottom: 4px;
  }
  .train-cat-toggle {
    padding: 8px 12px;
    font-size: 12px;
    font-weight: 600;
  }
  .train-cat-body {
    padding: 0 10px 10px;
  }
  .train-cat-header {
    margin-bottom: 8px;
  }
  .train-cat-total { font-size: 16px; }
  .train-cat-subtitle { font-size: 10px; }
  .train-cat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }
  .train-cat-item {
    padding: 6px 8px;
    gap: 6px;
  }
  .train-cat-icon { font-size: 16px; width: 22px; }
  .train-cat-label { font-size: 11px; }
  .train-cat-count { font-size: 10px; }
  .train-cat-samples { margin-top: 6px; }
  .train-cat-samples ul { font-size: 10px; }
}

/* ---- Responsive: 480px -> very small phones ---- */
@media (max-width: 480px) {
  .train-cat-grid {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .train-cat-item {
    gap: 6px;
    padding: 6px;
  }
  .train-cat-icon { font-size: 14px; width: 20px; }
  .train-cat-label { font-size: 10px; }
}

/* ================================================================
   TRAINING CONTENT CATEGORIES PANEL
   ================================================================ */
.train-categories-panel {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  margin-bottom: 4px;
  flex-shrink: 1;
  min-height: 0;
  overflow: hidden;
}
.train-cat-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  cursor: pointer;
  user-select: none;
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color 0.2s;
}
.train-cat-toggle:hover {
  color: rgba(255, 255, 255, 0.85);
}
.train-cat-chevron {
  font-size: 10px;
  transition: transform 0.3s ease;
  display: inline-block;
}
.train-categories-panel.collapsed .train-cat-chevron {
  transform: rotate(-90deg);
}
.train-cat-body {
  padding: 0 14px 14px;
  max-height: 200px;
  overflow-y: auto;
  overflow-x: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease, opacity 0.25s ease;
  opacity: 1;
}
.train-categories-panel.collapsed .train-cat-body {
  max-height: 0;
  padding: 0 14px;
  opacity: 0;
}
.train-cat-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 12px;
}
.train-cat-total {
  font-size: 18px;
  font-weight: 700;
  color: #e0e0e0;
}
.train-cat-subtitle {
  font-size: 12px;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.train-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}
.train-cat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.15s, border-color 0.3s, box-shadow 0.3s, opacity 0.2s;
  cursor: pointer;
}
.train-cat-item:hover {
  background: rgba(255, 255, 255, 0.07);
}
.train-cat-item:active {
  background: rgba(255, 255, 255, 0.10);
}
/* Queued: checked categories pulsing softly while training is running */
.train-cat-item.train-cat-queued {
  border-color: rgba(0, 212, 255, 0.5);
  background: rgba(0, 212, 255, 0.06);
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.3), 0 0 18px rgba(0, 212, 255, 0.1);
  animation: train-cat-queued-pulse 2.5s ease-in-out infinite alternate;
}
@keyframes train-cat-queued-pulse {
  from { box-shadow: 0 0 6px rgba(0, 212, 255, 0.25), 0 0 14px rgba(0, 212, 255, 0.08); border-color: rgba(0, 212, 255, 0.35); }
  to   { box-shadow: 0 0 12px rgba(0, 212, 255, 0.5), 0 0 24px rgba(0, 212, 255, 0.18); border-color: rgba(0, 212, 255, 0.65); }
}

/* Active: server confirms this category in current training batch */
.train-cat-item.train-cat-active {
  border-color: #00e676;
  background: rgba(0, 230, 118, 0.08);
  box-shadow: 0 0 10px rgba(0, 230, 118, 0.6), 0 0 24px rgba(0, 230, 118, 0.25), 0 0 40px rgba(0, 230, 118, 0.1);
  animation: train-cat-glow 1.5s ease-in-out infinite alternate;
}
@keyframes train-cat-glow {
  from { box-shadow: 0 0 8px rgba(0, 230, 118, 0.5), 0 0 20px rgba(0, 230, 118, 0.2); }
  to   { box-shadow: 0 0 16px rgba(0, 230, 118, 0.8), 0 0 36px rgba(0, 230, 118, 0.35), 0 0 50px rgba(0, 230, 118, 0.15); }
}

/* Category focus checkboxes */
.train-cat-focus-cb {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  accent-color: #00d4ff;
  cursor: pointer;
  margin: 0;
}
.train-cat-item--dimmed {
  opacity: 0.55;
}
.train-cat-item--dimmed:hover {
  opacity: 0.8;
}
.train-focus-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  margin-bottom: 8px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 6px;
  font-size: 12px;
  color: #00d4ff;
}
.train-focus-clear {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: #aaa;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  margin-left: auto;
}
.train-focus-clear:hover { background: rgba(255,255,255,0.15); color: #fff; }

/* Loading progress bar */
.train-load-bar-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 0;
}
.train-load-label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  white-space: nowrap;
  flex-shrink: 0;
}
.train-load-track {
  flex: 1;
  height: 28px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(0, 230, 118, 0.25);
  border-radius: 14px;
  overflow: hidden;
  position: relative;
}
.train-load-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #00c853, #00e676, #69f0ae);
  border-radius: 14px;
  transition: width 0.4s ease;
  box-shadow: 0 0 10px rgba(0, 230, 118, 0.4);
}
.train-load-pct {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

.train-cat-icon {
  font-size: 20px;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
}
.train-cat-info {
  flex: 1;
  min-width: 0;
}
.train-cat-label {
  font-size: 12px;
  font-weight: 600;
  color: #ccc;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.train-cat-bar-track {
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 3px;
}
.train-cat-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.3s ease;
}
.train-cat-count {
  font-size: 11px;
  color: #999;
}
.train-cat-pct {
  color: #666;
}
.train-cat-samples {
  margin-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 8px;
}
.train-cat-samples summary {
  font-size: 11px;
  color: #888;
  cursor: pointer;
  user-select: none;
}
.train-cat-samples ul {
  margin: 6px 0 0 0;
  padding-left: 18px;
  font-size: 11px;
  color: #aaa;
  line-height: 1.6;
}
.train-cat-samples li strong {
  color: #ccc;
}

/* ================================================================
   TRAINING COMPLETION OVERLAY DIALOG
   ================================================================ */
.train-completion-overlay {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  animation: train-overlay-fadein 0.3s ease;
}
@keyframes train-overlay-fadein {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.train-completion-dialog {
  background: #1a1a2e;
  border: 2px solid #4ec9b0;
  border-radius: 16px;
  padding: 0;
  width: 420px;
  max-width: 92vw;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(78, 201, 176, 0.1);
  animation: train-dialog-slidein 0.3s ease;
  overflow: hidden;
}
@keyframes train-dialog-slidein {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.train-dialog-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.train-dialog-icon {
  font-size: 28px;
}
.train-dialog-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: #e0e0e0;
}
.train-dialog-body {
  padding: 16px 24px 20px;
}
.train-dialog-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.train-dialog-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.train-dialog-stat-label {
  font-size: 11px;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.train-dialog-stat-value {
  font-size: 16px;
  font-weight: 600;
  color: #e0e0e0;
}
.train-dialog-report {
  margin-top: 16px;
  text-align: center;
}
.train-dialog-report-link {
  display: inline-block;
  padding: 10px 24px;
  background: linear-gradient(135deg, #4ec9b0, #00d4ff);
  color: #0d0d1a;
  font-weight: 700;
  font-size: 13px;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity 0.15s, transform 0.15s;
}
.train-dialog-report-link:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}
.train-dialog-footer {
  padding: 12px 24px 16px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.train-dialog-close-btn {
  padding: 8px 32px;
  background: rgba(255, 255, 255, 0.08);
  color: #ccc;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
}
.train-dialog-close-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

/* Completion dialog — health assessment */
.train-dialog-health {
  border-left: 3px solid #4ec9b0;
  padding: 8px 12px;
  margin-bottom: 14px;
  background: rgba(255,255,255,0.03);
  border-radius: 0 6px 6px 0;
  font-size: 13px;
  line-height: 1.5;
}

/* Completion dialog — categories */
.train-dialog-cats {
  margin-top: 14px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.03);
  border-radius: 6px;
  font-size: 12px;
  line-height: 1.6;
}

/* ============================================================
   LIGHT MODE OVERRIDES
   ============================================================ */

/* Dashboard layout */
[data-theme="light"] .train-layout {
  color: var(--tc-text-primary, #1e293b);
}

/* Control bar */
[data-theme="light"] .train-control-bar {
  background: rgba(255, 255, 255, 0.6);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

/* Time strip */
[data-theme="light"] .train-time-strip {
  background: rgba(255, 255, 255, 0.5);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
[data-theme="light"] .train-time-label {
  color: #64748b;
}
[data-theme="light"] .train-time-value {
  color: #1e293b;
}

/* Dashboard cards — black borders + depth */
[data-theme="light"] .train-dash-card {
  background: rgba(255, 255, 255, 0.75);
  border: 1.5px solid #1e293b;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
[data-theme="light"] .train-dash-card:hover {
  background: rgba(255, 255, 255, 0.85);
  border: 1.5px solid #0f172a;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.14), 0 2px 6px rgba(0, 0, 0, 0.08);
}

/* Card header */
[data-theme="light"] .train-card-header {
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

/* Card text — BLACK in light mode */
[data-theme="light"] .train-card-label {
  color: #0f172a;
}
[data-theme="light"] .train-card-value {
  color: #0f172a;
}
[data-theme="light"] .train-gauge-label {
  color: #0f172a;
}
[data-theme="light"] .train-minibar-label {
  color: #0f172a;
}
[data-theme="light"] .train-minibar-label span:last-child {
  color: #1e293b;
}
[data-theme="light"] .train-ring-text {
  color: var(--tc-primary, #3B82F6);
}

/* Gauge SVG strokes */
[data-theme="light"] .train-gauge circle {
  stroke: rgba(0, 0, 0, 0.1);
}

/* Progress minibar track */
[data-theme="light"] .train-minibar-track {
  background: rgba(0, 0, 0, 0.1);
}

/* Categories panel */
[data-theme="light"] .train-categories-panel {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(0, 0, 0, 0.12);
}
[data-theme="light"] .train-cat-toggle {
  color: #1e293b;
}
[data-theme="light"] .train-cat-count {
  color: #1e293b;
}

/* Category cards */
[data-theme="light"] .train-cat-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(0, 0, 0, 0.1);
}
[data-theme="light"] .train-cat-card:hover {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(0, 0, 0, 0.2);
}
[data-theme="light"] .train-cat-name {
  color: #1e293b;
}
[data-theme="light"] .train-cat-stat {
  color: #475569;
}

/* Bottom section (terminal area) */
[data-theme="light"] .train-bottom {
  background: rgba(255, 255, 255, 0.5);
}

/* Tab bar */
[data-theme="light"] .train-output-tabs {
  background: rgba(255, 255, 255, 0.6);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
[data-theme="light"] .train-otab {
  color: #64748b;
}
[data-theme="light"] .train-otab:hover {
  color: #1e293b;
  background: rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .train-otab.active {
  color: var(--tc-primary, #3B82F6);
  background: rgba(255, 255, 255, 0.8);
}

/* Storage badge */
[data-theme="light"] .train-storage-badge {
  background: rgba(59, 130, 246, 0.1);
  color: #2563eb;
  border-color: rgba(59, 130, 246, 0.3);
}

/* Status badge */
[data-theme="light"] .train-status-badge {
  color: #1e293b;
}

/* Dashboard grid background */
[data-theme="light"] .train-dashboard {
  background: transparent;
}

/* Dialog overlays */
[data-theme="light"] .train-dialog-box {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 0, 0, 0.15);
  color: #1e293b;
}
[data-theme="light"] .train-dialog-close-btn {
  background: rgba(0, 0, 0, 0.06);
  color: #475569;
  border: 1px solid rgba(0, 0, 0, 0.1);
}
[data-theme="light"] .train-dialog-close-btn:hover {
  background: rgba(0, 0, 0, 0.1);
  color: #1e293b;
}

/* ── Writing Resource Panel ─────────────────────────────────────── */

.train-cat-res-link {
  display: block;
  font-size: 10px;
  color: #90caf9;
  text-decoration: none;
  margin-top: 2px;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.15s;
}
.train-cat-res-link:hover { opacity: 1; }

.train-res-panel {
  grid-column: 1 / -1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 8px;
  padding: 10px 12px;
  margin: 4px 0 8px;
}

.train-res-header {
  font-size: 11px;
  font-weight: 600;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.train-res-loading,
.train-res-empty {
  font-size: 11px;
  color: #64748b;
  padding: 8px 0;
}

.train-res-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.train-res-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(148, 163, 184, 0.08);
  border-radius: 6px;
  padding: 8px 10px;
  transition: border-color 0.15s;
}
.train-res-item:hover {
  border-color: rgba(148, 163, 184, 0.2);
}

.train-res-item-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.train-res-status-icon { font-size: 12px; }
.train-res-name {
  font-size: 11px;
  font-weight: 500;
  color: #e2e8f0;
  flex: 1;
}
.train-res-size {
  font-size: 10px;
  color: #64748b;
}

.train-res-item-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.train-res-provider {
  font-size: 10px;
  color: #64748b;
  background: rgba(148, 163, 184, 0.08);
  padding: 1px 5px;
  border-radius: 3px;
}

.train-res-status-label {
  font-size: 10px;
  font-weight: 500;
}
.train-res-status--downloaded { color: #4ec9b0; }
.train-res-status--downloading { color: #dcdcaa; }
.train-res-status--failed { color: #f44336; }
.train-res-status--manual { color: #90a4ae; }
.train-res-status--not_downloaded { color: #64748b; }

.train-res-error {
  font-size: 10px;
  color: #f44336;
  cursor: help;
}

.train-res-item-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.train-res-btn {
  font-size: 10px;
  padding: 3px 10px;
  border-radius: 4px;
  border: 1px solid rgba(148, 163, 184, 0.15);
  background: rgba(255, 255, 255, 0.06);
  color: #94a3b8;
  cursor: pointer;
  transition: all 0.15s;
}
.train-res-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #e2e8f0;
}

.train-res-download-btn {
  border-color: rgba(78, 201, 176, 0.3);
  color: #4ec9b0;
}
.train-res-download-btn:hover {
  background: rgba(78, 201, 176, 0.12);
}

.train-res-include-btn {
  border-color: rgba(144, 202, 249, 0.3);
  color: #90caf9;
}
.train-res-include-btn:hover {
  background: rgba(144, 202, 249, 0.12);
}
.train-res-include-btn.active {
  background: rgba(78, 201, 176, 0.15);
  border-color: rgba(78, 201, 176, 0.4);
  color: #4ec9b0;
}

.train-res-downloading-indicator {
  font-size: 10px;
  color: #dcdcaa;
  animation: train-status-pulse 1.5s ease-in-out infinite;
}

/* ======= Shard Loading Overlay ======= */
.train-shard-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  border-radius: inherit;
  z-index: 5;
  padding: 0.75rem;
}

.train-shard-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.train-shard-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: center;
  max-width: 180px;
}

.train-shard-block {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  background: #1e293b;
  border: 1px solid #334155;
  transition: all 0.4s ease;
}

.train-shard-block.train-shard-loaded {
  background: #00d4ff;
  border-color: #00d4ff;
  box-shadow: 0 0 6px rgba(0, 212, 255, 0.4);
}

.train-shard-block.train-shard-active {
  background: #0ea5e9;
  border-color: #38bdf8;
  animation: train-shard-pulse 1s ease-in-out infinite;
  box-shadow: 0 0 10px rgba(14, 165, 233, 0.6);
}

@keyframes train-shard-pulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.15); }
}

.train-shard-label {
  font-size: 0.7rem;
  color: #64748b;
  font-variant-numeric: tabular-nums;
}