/* Synth Module Styles */
.synth-layout {
  display: flex;
  height: 100%;
}

/* Sidebar */
.synth-sidebar {
  width: 160px;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.synth-sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  font-weight: 500;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.synth-add-btn {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 16px;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.synth-add-btn:hover {
  background: var(--accent-primary);
}

/* Patterns List */
.synth-patterns-list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
  margin: 0;
  padding: 0;
}

.synth-patterns-empty {
  padding: var(--spacing-md);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  text-align: center;
}

.synth-pattern-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.synth-pattern-item:hover {
  background: var(--bg-secondary);
}

.synth-pattern-item.active {
  background: var(--bg-tertiary);
  border-left: 2px solid var(--accent-primary);
}

.synth-pattern-name {
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.synth-pattern-delete {
  width: 20px;
  height: 20px;
  display: none;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  border-radius: 4px;
  flex-shrink: 0;
}

.synth-pattern-item:hover .synth-pattern-delete {
  display: flex;
}

.synth-pattern-delete:hover {
  background: var(--control-close);
  color: white;
}

.synth-sidebar-footer {
  display: flex;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  border-top: 1px solid var(--border-color);
}

.synth-btn-sm {
  flex: 1;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 11px;
}

/* Main Content */
.synth-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

/* Empty State */
.synth-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.synth-empty p {
  margin: 0;
}

/* Editor */
.synth-editor {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--spacing-md);
  gap: var(--spacing-md);
  overflow: hidden;
}

/* Pattern Header */
.synth-pattern-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

.synth-pattern-title {
  flex: 1;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  padding: var(--spacing-xs) 0;
  outline: none;
  transition: border-color var(--transition-fast);
}

.synth-pattern-title:focus {
  border-bottom-color: var(--accent-primary);
}

.synth-pattern-title::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.synth-pattern-status {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  min-width: 60px;
  text-align: right;
}

.synth-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.synth-transport {
  display: flex;
  gap: var(--spacing-sm);
}

.synth-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.synth-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.synth-btn svg {
  width: 12px;
  height: 12px;
}

.synth-btn-play {
  background: var(--control-maximize);
  border-color: var(--control-maximize);
  color: white;
}

.synth-btn-play:hover {
  background: #22b438;
}

.synth-btn-play.playing {
  background: var(--control-minimize);
  border-color: var(--control-minimize);
}

.synth-btn-stop {
  background: var(--control-close);
  border-color: var(--control-close);
  color: white;
}

.synth-btn-stop:hover {
  background: #e04a3f;
}

.synth-settings {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.synth-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.synth-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.synth-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--accent-primary);
  border-radius: 50%;
  cursor: pointer;
}

.synth-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: var(--accent-primary);
  border-radius: 50%;
  border: none;
}

.synth-tempo-value {
  min-width: 30px;
  text-align: right;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.synth-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.synth-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.synth-section-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.synth-select {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
}

.synth-grid {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.synth-row {
  display: flex;
  align-items: center;
  gap: 2px;
}

.synth-note-label {
  width: 40px;
  font-size: var(--font-size-sm);
  font-family: var(--font-mono);
  color: var(--text-secondary);
  text-align: right;
  padding-right: var(--spacing-sm);
  flex-shrink: 0;
}

.synth-cell {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.synth-cell:hover {
  background: var(--bg-tertiary);
}

.synth-cell.active {
  background: var(--accent-primary);
}

.synth-cell.active:hover {
  background: var(--accent-hover);
}

.synth-cell-drum.active {
  background: var(--control-minimize);
}

.synth-cell-drum.active:hover {
  background: #e6a520;
}

/* Beat grouping - subtle visual separation every 4 steps */
.synth-cell:nth-child(4n + 2) {
  margin-left: 4px;
}

.synth-step-indicator {
  display: flex;
  gap: 2px;
  justify-content: flex-end;
  padding-right: 0;
  padding-left: 48px;
}

.synth-step-dot {
  width: 24px;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.synth-step-dot.active {
  background: var(--accent-primary);
}

/* Match the beat grouping */
.synth-step-dot:nth-child(4n + 1) {
  margin-left: 4px;
}

.synth-step-dot:first-child {
  margin-left: 0;
}

/* Drum section styling */
.synth-drum-grid {
  flex: none;
}

/* AI Button and Popover */
.synth-ai-wrapper {
  position: relative;
}

.synth-btn-ai {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  border-color: #6366f1;
  color: white;
}

.synth-btn-ai:hover {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: white;
}

.synth-ai-popover {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: var(--spacing-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 100;
  min-width: 280px;
}

.synth-ai-popover-content {
  padding: var(--spacing-md);
}

.synth-ai-no-key {
  text-align: center;
}

.synth-ai-no-key p {
  margin: 0 0 var(--spacing-md);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.synth-ai-prompt {
  width: 100%;
  padding: var(--spacing-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-family: inherit;
  resize: none;
  margin-bottom: var(--spacing-sm);
}

.synth-ai-prompt:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.synth-ai-prompt::placeholder {
  color: var(--text-muted);
}

.synth-ai-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.synth-ai-actions button {
  flex: 1;
}

.synth-btn-primary {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

.synth-btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: white;
}

.synth-ai-status {
  margin-top: var(--spacing-sm);
  min-height: 20px;
  font-size: var(--font-size-sm);
}

.synth-ai-loading {
  color: var(--text-muted);
}

.synth-ai-error {
  color: var(--control-close);
}