/* Remix Composer - Grainrad Terminal Style */

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

:root {
  --bg-dark: #0a0a0a;
  --bg-panel: #0f0f0f;
  --bg-hover: #1a1a1a;
  --bg-selected: #1f1f1f;
  --border-color: #2a2a2a;
  --text-primary: #e0e0e0;
  --text-secondary: #808080;
  --text-muted: #505050;
  --accent-color: #808080;
  --accent-hover: #a0a0a0;
  --danger-color: #804040;
  --success-color: #408040;
  --warning-color: #806040;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Monaco', monospace;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

/* Startup Overlay */
#startup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-dark);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  transition: opacity 0.3s ease-out;
}

#startup-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.startup-content {
  text-align: center;
  color: var(--text-primary);
}

.startup-content h1 {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 8px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.startup-content p {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

#btn-start {
  padding: 12px 32px;
  font-size: 12px;
  font-family: var(--font-mono);
  background: transparent;
  border: 1px solid var(--text-secondary);
  color: var(--text-primary);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  text-transform: uppercase;
  letter-spacing: 1px;
}

#btn-start:hover {
  border-color: var(--text-primary);
  color: #fff;
}

.startup-hint {
  font-size: 10px !important;
  color: var(--text-muted) !important;
  margin-top: 32px !important;
}

.startup-hint code {
  background: var(--bg-panel);
  padding: 2px 6px;
  border: 1px solid var(--border-color);
  font-family: var(--font-mono);
}

/* Main Layout */
body {
  display: flex;
  flex-direction: column;
}

/* Canvas Container */
#canvas-container {
  position: fixed;
  top: 0;
  left: 280px;
  right: 260px;
  bottom: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #050505;
  z-index: 0;
  overflow: hidden;
}

#canvas-container canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  position: relative !important;
  left: auto !important;
  top: auto !important;
}

/* UI Container */
#ui-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
  display: flex;
}

/* Panels - Terminal Style */
.panel {
  position: absolute;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  pointer-events: auto;
  min-width: 200px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  transition: opacity 0.2s;
}

.panel.hidden {
  opacity: 0;
  pointer-events: none;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-color);
  cursor: move;
}

.panel-title {
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
}

.panel-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

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

.panel-content {
  padding: 8px;
  overflow-y: auto;
  flex: 1;
}

/* Panel Positions */
#components-panel {
  top: 0;
  left: 0;
  bottom: 60px;
  width: 260px;
  max-height: none;
  border-left: none;
  border-top: none;
  border-bottom: none;
}

#layers-panel {
  top: 0;
  right: 0;
  width: 240px;
  height: calc(50vh - 30px);
  border-right: none;
  border-top: none;
}

#parameters-panel {
  bottom: 60px;
  left: 280px;
  right: 260px;
  width: auto;
  max-width: none;
  transform: none;
  max-height: 180px;
}

#audio-panel {
  top: calc(50vh - 30px);
  right: 0;
  bottom: 60px;
  width: 240px;
  border-right: none;
}

/* Filter Panel */
#filter-panel {
  top: 0;
  left: 0;
  bottom: 60px;
  width: 260px;
  max-height: none;
  border-left: none;
  border-top: none;
  border-bottom: none;
  display: none;
}

#filter-panel.active {
  display: flex;
}

#components-panel.hidden-for-filters {
  display: none;
}

/* Collapsible Sections - Terminal Style */
.section-collapsible {
  margin-bottom: 4px;
}

.section-header {
  display: flex;
  align-items: center;
  padding: 6px 8px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
  transition: color 0.15s;
}

.section-header:hover {
  color: var(--text-primary);
}

.section-toggle {
  width: 12px;
  margin-right: 6px;
  font-family: var(--font-mono);
}

.section-header.collapsed .section-toggle::before {
  content: '+';
}

.section-header:not(.collapsed) .section-toggle::before {
  content: '-';
}

.section-content {
  padding: 4px 8px;
}

.section-header.collapsed + .section-content {
  display: none;
}

/* Component Categories */
#components-panel .panel-content {
  padding: 4px;
}

.category-section {
  margin-bottom: 8px;
}

.category-header {
  padding: 6px 8px;
  font-weight: 500;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 4px;
}

.component-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

.component-thumb {
  aspect-ratio: 1;
  background: var(--bg-dark);
  cursor: pointer;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-color);
  transition: border-color 0.15s;
}

.component-thumb:hover {
  border-color: var(--text-secondary);
}

.component-thumb-preview {
  width: 100%;
  height: 100%;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.component-thumb-preview canvas {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.component-thumb-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 4px;
  background: linear-gradient(transparent, rgba(0,0,0,0.9));
}

.component-thumb-name {
  font-size: 9px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.component-thumb-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  font-size: 7px;
  padding: 1px 3px;
  background: var(--text-muted);
  color: var(--bg-dark);
  font-weight: 600;
}

/* Legacy list styles */
.component-item {
  padding: 6px 8px;
  margin: 2px 0;
  background: var(--bg-dark);
  cursor: pointer;
  transition: background 0.15s;
  border: 1px solid transparent;
}

.component-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-color);
}

.component-item .name {
  font-weight: 500;
  font-size: 11px;
}

.component-item .desc {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
}

.component-item .audio-badge {
  display: inline-block;
  font-size: 8px;
  padding: 1px 4px;
  background: var(--text-muted);
  color: var(--bg-dark);
  margin-left: 6px;
  vertical-align: middle;
}

/* Layer Stack */
#layer-stack {
  min-height: 80px;
}

.layer-item {
  display: flex;
  align-items: center;
  padding: 6px 8px;
  margin: 2px 0;
  background: var(--bg-dark);
  cursor: pointer;
  transition: background 0.15s;
  border: 1px solid transparent;
}

.layer-item:hover {
  background: var(--bg-hover);
}

.layer-item.selected {
  background: var(--bg-selected);
  border-color: var(--text-secondary);
}

.layer-item.dragging {
  opacity: 0.5;
}

.layer-visibility {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 12px;
  position: relative;
}

.layer-visibility:hover {
  color: var(--text-primary);
}

.layer-visibility.layer-hidden {
  opacity: 0.3;
}

.layer-visibility.layer-hidden::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 1px;
  background: var(--danger-color);
  transform: rotate(-45deg);
}

.layer-settings {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 12px;
  opacity: 0;
  transition: opacity 0.15s;
}

.layer-item:hover .layer-settings,
.layer-item.selected .layer-settings {
  opacity: 1;
}

.layer-settings:hover {
  color: var(--text-primary);
}

.layer-name {
  flex: 1;
  padding: 0 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: text;
  font-size: 11px;
}

.layer-name-input {
  width: 100%;
  background: var(--bg-dark);
  border: 1px solid var(--text-secondary);
  color: var(--text-primary);
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 2px 4px;
  outline: none;
}

.layer-delete {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 0.15s;
}

.layer-item:hover .layer-delete {
  opacity: 1;
}

.layer-delete:hover {
  color: var(--danger-color);
}

/* Base Layer Controls */
#base-layer-controls {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
}

.section-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.base-layer-buttons {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

/* Parameter Controls - Terminal Style */
#param-layer-name {
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.param-group {
  margin-bottom: 8px;
}

.param-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: 3px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.param-value-display {
  color: var(--text-secondary);
  font-weight: 500;
}

.param-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Terminal-style slider */
.param-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 2px;
  background: var(--border-color);
  outline: none;
}

.param-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 8px;
  height: 8px;
  background: var(--text-secondary);
  cursor: pointer;
}

.param-slider::-webkit-slider-thumb:hover {
  background: var(--text-primary);
}

.param-slider::-moz-range-thumb {
  width: 8px;
  height: 8px;
  background: var(--text-secondary);
  border: none;
  cursor: pointer;
}

.param-value {
  width: 40px;
  text-align: right;
  font-size: 10px;
  color: var(--text-secondary);
}

.param-select {
  width: 100%;
  padding: 4px 6px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 10px;
  outline: none;
}

.param-select:focus {
  border-color: var(--text-secondary);
}

.param-color {
  width: 32px;
  height: 20px;
  padding: 0;
  border: 1px solid var(--border-color);
  cursor: pointer;
  background: transparent;
}

.param-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
}

.param-toggle input {
  width: 14px;
  height: 14px;
  accent-color: var(--text-secondary);
}

.param-text-row {
  display: flex;
  gap: 4px;
  align-items: center;
}

.param-text {
  flex: 1;
  padding: 4px 6px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 10px;
  font-family: var(--font-mono);
}

.param-text:focus {
  outline: none;
  border-color: var(--text-secondary);
}

.param-text::placeholder {
  color: var(--text-muted);
}

.param-text-btn {
  padding: 4px 8px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 10px;
  font-family: var(--font-mono);
  cursor: pointer;
  white-space: nowrap;
}

.param-text-btn:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.param-number {
  width: 100%;
  padding: 4px 6px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 10px;
  font-family: var(--font-mono);
}

/* Transform Controls */
#transform-controls {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
}

.transform-row {
  display: flex;
  gap: 6px;
  margin-bottom: 6px;
}

.transform-input {
  flex: 1;
}

.transform-input label {
  display: block;
  font-size: 9px;
  color: var(--text-muted);
  margin-bottom: 2px;
  text-transform: uppercase;
}

.transform-input input {
  width: 100%;
  padding: 3px 4px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 10px;
  font-family: var(--font-mono);
  text-align: center;
}

/* Blend Controls */
#blend-controls {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
}

/* Audio Panel */
#audio-visualizer {
  width: 100%;
  height: 50px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  margin-bottom: 8px;
}

.audio-controls {
  display: flex;
  gap: 4px;
  margin-bottom: 6px;
}

#audio-status {
  font-size: 10px;
  color: var(--text-muted);
}

.url-input-row {
  display: flex;
  gap: 4px;
  margin-bottom: 6px;
}

.url-input-row.hidden {
  display: none;
}

.url-input-row input[type="text"] {
  flex: 1;
  padding: 4px 6px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 10px;
  font-family: var(--font-mono);
}

.url-input-row input[type="text"]::placeholder {
  color: var(--text-muted);
}

.url-input-row input[type="text"]:focus {
  outline: none;
  border-color: var(--text-secondary);
}

/* Filter Panel Specific Styles */
.filter-scope-toggle {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
  padding: 4px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
}

.filter-scope-btn {
  flex: 1;
  padding: 4px 8px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-scope-btn.active {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.filter-scope-btn:hover:not(.active) {
  color: var(--text-secondary);
}

.filter-layer-info {
  padding: 6px 8px;
  margin-bottom: 8px;
  font-size: 10px;
  color: var(--text-secondary);
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  text-align: center;
}

.filter-layer-info.filter-layer-warning {
  color: #a08050;
  border-color: #504030;
}

/* Filter List */
.filter-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.filter-item {
  display: flex;
  align-items: center;
  padding: 4px 8px;
  cursor: pointer;
  transition: background 0.1s;
}

.filter-item:hover {
  background: var(--bg-hover);
}

.filter-item.active {
  background: var(--bg-selected);
}

.filter-radio,
.filter-checkbox {
  width: 14px;
  height: 14px;
  margin-right: 8px;
  accent-color: var(--text-secondary);
}

.filter-name {
  flex: 1;
  font-size: 11px;
  color: var(--text-secondary);
}

.filter-item.active .filter-name {
  color: var(--text-primary);
}

/* Filter Sub-parameters */
.filter-params {
  margin-left: 22px;
  margin-top: 4px;
  padding: 4px 0;
  border-left: 1px solid var(--border-color);
  padding-left: 8px;
}

.filter-param-row {
  display: flex;
  align-items: center;
  margin-bottom: 4px;
}

.filter-param-label {
  flex: 0 0 80px;
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.filter-param-slider {
  flex: 1;
  height: 2px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--border-color);
  margin: 0 8px;
}

.filter-param-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 6px;
  height: 6px;
  background: var(--text-secondary);
  cursor: pointer;
}

.filter-param-value {
  flex: 0 0 30px;
  font-size: 9px;
  color: var(--text-secondary);
  text-align: right;
}

/* Buttons - Terminal Style */
.btn-small {
  padding: 4px 8px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 10px;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-small:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.btn-small.active {
  background: var(--text-secondary);
  color: var(--bg-dark);
  border-color: var(--text-secondary);
}

/* Toolbar - Terminal Style */
#toolbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border-color);
  padding: 0 12px;
  z-index: 20;
}

.toolbar-btn {
  padding: 6px 12px;
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 10px;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.toolbar-btn:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.toolbar-btn.active {
  background: var(--text-secondary);
  color: var(--bg-dark);
}

.toolbar-btn.recording {
  background: var(--danger-color);
  border-color: var(--danger-color);
  color: var(--text-primary);
  animation: pulse 1s infinite;
}

.toolbar-separator {
  width: 1px;
  height: 24px;
  background: var(--border-color);
  margin: 0 8px;
}

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

/* Recording Indicator */
#recording-indicator {
  position: fixed;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 12px;
  background: var(--danger-color);
  color: var(--text-primary);
  font-size: 10px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 100;
}

#recording-indicator.hidden {
  display: none;
}

.recording-dot {
  width: 8px;
  height: 8px;
  background: var(--text-primary);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* Hidden */
.hidden {
  display: none !important;
}

/* Scrollbar - Terminal Style */
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Drag and Drop */
.drop-zone {
  border: 1px dashed var(--border-color);
  padding: 16px;
  text-align: center;
  color: var(--text-muted);
  transition: border-color 0.2s;
}

.drop-zone.drag-over {
  border-color: var(--text-secondary);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 16px;
  color: var(--text-muted);
  font-size: 10px;
}

.empty-state p {
  margin: 6px 0;
}

/* Keyboard shortcut hints */
.shortcut-hint {
  font-size: 9px;
  color: var(--text-muted);
  background: var(--bg-dark);
  padding: 1px 4px;
  border: 1px solid var(--border-color);
  margin-left: 6px;
}

/* Mode Toggle in Toolbar */
.mode-toggle {
  display: flex;
  border: 1px solid var(--border-color);
}

.mode-toggle .toolbar-btn {
  border: none;
  border-right: 1px solid var(--border-color);
}

.mode-toggle .toolbar-btn:last-child {
  border-right: none;
}

/* Responsive */
@media (max-width: 1024px) {
  #canvas-container {
    left: 0;
    right: 0;
    bottom: 60px;
  }

  .panel {
    position: fixed !important;
    width: auto !important;
    height: auto !important;
    max-height: 50vh !important;
  }

  #components-panel,
  #filter-panel {
    top: 8px !important;
    left: 8px !important;
    bottom: auto !important;
    width: 200px !important;
  }

  #layers-panel {
    top: 8px !important;
    right: 8px !important;
    width: 180px !important;
  }

  #audio-panel {
    top: auto !important;
    bottom: 70px !important;
    right: 8px !important;
    width: 180px !important;
  }

  #parameters-panel {
    left: 8px !important;
    right: 8px !important;
    bottom: 70px !important;
    max-height: 140px !important;
  }
}

@media (max-width: 768px) {
  .panel {
    width: calc(100% - 16px) !important;
    left: 8px !important;
    right: 8px !important;
    transform: none !important;
  }

  #parameters-panel {
    bottom: 70px;
  }

  #toolbar {
    flex-wrap: wrap;
    height: auto;
    padding: 8px;
    gap: 4px;
  }

  .toolbar-btn {
    padding: 4px 8px;
    font-size: 9px;
  }
}