/* Panel-specific styles */

.panel-tabs {
  display: flex;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all var(--transition);
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--highlight);
}

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

.tab-content {
  display: none;
  padding: 1.5rem;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Component highlight */
.component-highlight {
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* Spec cards */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.spec-card {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-panel));
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  transition: border-color var(--transition), transform var(--transition);
}

.spec-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}

.spec-card h3 {
  font-size: 0.75rem;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.spec-card p {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Era selector (browse historical examples within a component) */
.era-select-row {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.25rem;
}

.era-select-row label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  white-space: nowrap;
}

.era-select {
  flex: 1;
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.era-select:focus {
  border-color: var(--accent-blue);
  outline: none;
}

/* Progressive disclosure: hide advanced/expert-only spec cards until the
   matching difficulty tier is selected (data-tier set on #specs-grid) */
.spec-card[data-tier="advanced"],
.spec-card[data-tier="expert"] {
  display: none;
}

#specs-grid[data-tier="advanced"] .spec-card[data-tier="advanced"] {
  display: block;
}

#specs-grid[data-tier="expert"] .spec-card[data-tier="advanced"],
#specs-grid[data-tier="expert"] .spec-card[data-tier="expert"] {
  display: block;
}

.tier-locked-note {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 1rem 0;
}

/* Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-height: 500px;
  overflow-y: auto;
  padding-right: 0.5rem;
}

.timeline::-webkit-scrollbar {
  width: 6px;
}

.timeline::-webkit-scrollbar-track {
  background: var(--bg-dark);
  border-radius: 3px;
}

.timeline::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent-blue);
  transition: border-color var(--transition);
}

.timeline-item:hover {
  border-left-color: var(--accent-cyan);
}

.timeline-year {
  font-size: 0.8rem;
  color: var(--accent-cyan);
  font-weight: 700;
  font-family: monospace;
}

.timeline-content h3 {
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.timeline-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Evolution visualizer */
.evolution-visualizer {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.comparison-chart {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.comparison-chart h3 {
  font-size: 0.95rem;
  margin-bottom: 1rem;
  color: var(--accent-purple);
}

.chart-container {
  width: 100%;
  height: 280px;
  position: relative;
}

.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
}

/* Simulator styles */
.simulator-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.simulator-controls {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.simulator-controls label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.simulator-controls select,
.simulator-controls input[type="number"] {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  width: 100%;
  transition: border-color var(--transition);
}

.simulator-controls select:focus,
.simulator-controls input:focus {
  border-color: var(--accent-blue);
  outline: none;
}

.simulate-btn {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.simulate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(74, 158, 255, 0.3);
}

.simulate-btn:active {
  transform: translateY(0);
}

.simulate-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Drive checklist (race simulator) */
.drive-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  max-height: 180px;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
}

.drive-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.25rem 0;
}

.drive-checkbox input:disabled + span {
  color: var(--text-secondary);
  opacity: 0.6;
}

.drive-checklist-hint {
  font-size: 0.8rem;
  color: var(--accent-orange);
  min-height: 1.2em;
}

/* Race lanes */
.race-lanes {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.race-lane {
  cursor: pointer;
}

.race-lane-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.race-lane-rank {
  font-weight: 700;
  color: var(--accent-cyan);
  min-width: 1.75rem;
}

.race-lane-track {
  height: 20px;
  margin: 0;
}

.race-lane-readout {
  display: block;
  font-size: 0.75rem;
  font-family: monospace;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  text-align: right;
}

.race-lane-blocked {
  cursor: default;
  opacity: 0.7;
}

.race-lane-blocked-note {
  font-size: 0.8rem;
  color: var(--accent-red);
  background: var(--bg-dark);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
}

.result-item-blocked strong {
  color: var(--text-secondary);
}

.race-results-title {
  grid-column: 1 / -1;
  margin-bottom: 0.5rem;
}

.latency-hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.75rem;
}

.benchmark-display {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.progress-bar-container {
  width: 100%;
  height: 28px;
  background: var(--bg-dark);
  border-radius: 14px;
  overflow: hidden;
  margin: 1rem 0;
  border: 1px solid var(--border-color);
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
  width: 0%;
  transition: width 0.1s linear;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.progress-bar.running {
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan), var(--accent-green));
  background-size: 200% 100%;
  animation: gradientShift 2s linear infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

.benchmark-results {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.result-item {
  text-align: center;
  padding: 0.75rem;
  background: var(--bg-dark);
  border-radius: var(--radius);
}

.result-item span {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.result-item strong {
  font-size: 1.1rem;
  color: var(--accent-green);
  font-weight: 700;
}

/* Latency visualization */
.latency-visualization {
  background: var(--bg-card);
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  margin-top: 1rem;
}

.latency-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.latency-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  width: 80px;
  flex-shrink: 0;
}

.latency-track {
  flex: 1;
  height: 8px;
  background: var(--bg-dark);
  border-radius: 4px;
  overflow: hidden;
}

.latency-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease;
}

.latency-value {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-family: monospace;
  width: 60px;
  text-align: right;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 23, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  backdrop-filter: blur(4px);
}

.modal[hidden] {
  display: none;
}

.modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 750px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  position: relative;
}

.close-modal {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  line-height: 1;
}

.close-modal:hover {
  color: var(--text-primary);
}

.research-editor {
  margin-top: 1.5rem;
}

.research-editor textarea {
  width: 100%;
  height: 450px;
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 1rem;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  resize: vertical;
  border-radius: var(--radius);
  line-height: 1.6;
}

.research-editor textarea:focus {
  border-color: var(--accent-blue);
  outline: none;
}

/* Responsive adjustments for panel */
@media (max-width: 1024px) {
  .info-panel {
    position: fixed;
    right: -420px;
    width: 380px;
  }

  .info-panel.open {
    right: 0;
  }
}

@media (max-width: 640px) {
  .info-panel {
    width: 100%;
    right: -100%;
  }

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

  .benchmark-results {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 60px 1fr;
  }

  .modal-content {
    padding: 1.5rem;
    width: 95%;
  }
}