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

:root {
  --bg: #1c1c2e;
  --surface: #262640;
  --surface2: #30304a;
  --border: #52527a;
  --border-light: #6a6a90;
  --primary: #7c3aed;
  --primary-hover: #6d28d9;
  --danger: #ef4444;
  --success: #22c55e;
  --text: #f0f0f4;
  --text-dim: #b0b0c8;
  --text-muted: #8888a4;
  --accent: #38bdf8;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  overflow: hidden;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* Header */
#header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 20px;
  height: 48px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.header-title {
  font-size: 16px;
  font-weight: 700;
  color: #b794f6;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

#reset-btn {
  margin-left: auto;
  color: #ef4444;
  border-color: #ef4444;
  flex-shrink: 0;
}
#reset-btn:hover {
  background: rgba(239, 68, 68, 0.15);
}

#tab-bar {
  display: flex;
  gap: 4px;
}

.tab {
  padding: 8px 18px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s;
}

.tab:hover { color: var(--text); background: var(--surface2); }
.tab.active { color: #fff; background: var(--primary); }

/* Tab panels */
#tab-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.tab-panel {
  display: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.tab-panel.active { display: flex; }

/* Three column layout for builders */
.builder-layout {
  display: flex;
  width: 100%;
  height: 100%;
}

.builder-sidebar {
  width: 220px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.builder-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
  gap: 12px;
  overflow: auto;
  background: var(--bg);
}

.builder-props {
  width: 240px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 16px;
  overflow-y: auto;
  flex-shrink: 0;
}

/* Sidebar list */
.sidebar-header {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-header h3 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
}

.item-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px;
}

.item-list-entry {
  padding: 8px 12px;
  cursor: pointer;
  border-radius: 4px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background 0.1s;
  border: 1px solid transparent;
}

.item-list-entry:hover { background: var(--surface2); border-color: var(--border); }
.item-list-entry.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.item-list-entry .preview-thumb {
  width: 24px;
  height: 24px;
  border: 1px solid var(--border-light);
  border-radius: 2px;
  image-rendering: pixelated;
  background: var(--surface2);
}

/* Buttons */
.btn {
  padding: 6px 14px;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-sm { padding: 4px 10px; font-size: 11px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.85; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { opacity: 0.85; }
.btn-ghost { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--border); }

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.1s;
}

.btn-icon:hover { background: var(--border); }
.btn-icon.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-icon svg { width: 18px; height: 18px; pointer-events: none; }

/* Pixel editor */
.pixel-editor-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pixel-editor-canvas {
  image-rendering: pixelated;
  cursor: crosshair;
  border: 2px solid var(--border-light);
  border-radius: 4px;
}

/* Toolbar */
.toolbar {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  align-items: center;
}

.toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 4px;
}

/* Color palette */
.color-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  max-width: 480px;
}

.color-swatch {
  width: 22px;
  height: 22px;
  border-radius: 3px;
  cursor: pointer;
  border: 2px solid rgba(255,255,255,0.1);
  transition: border-color 0.1s, transform 0.1s;
}

.color-swatch:hover { transform: scale(1.15); border-color: rgba(255,255,255,0.4); }
.color-swatch.active { border-color: #fff; transform: scale(1.15); }

.color-picker-wrap {
  position: relative;
}

.color-picker-wrap input[type="color"] {
  width: 22px;
  height: 22px;
  border: 2px dashed var(--border-light);
  border-radius: 3px;
  cursor: pointer;
  background: none;
  padding: 0;
}

.color-picker-wrap input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.color-picker-wrap input[type="color"]::-webkit-color-swatch { border: none; border-radius: 2px; }

/* Current color display */
.current-color {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border-light);
  border-radius: 4px;
}

/* Properties panel */
.props-section {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.props-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.props-section h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 10px;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}

.props-field {
  margin-bottom: 10px;
}

.props-field label {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.props-field input[type="text"],
.props-field input[type="number"],
.props-field select {
  width: 100%;
  padding: 6px 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 13px;
}

.props-field input[type="text"]:focus,
.props-field input[type="number"]:focus,
.props-field select:focus {
  outline: none;
  border-color: var(--primary);
}

/* Checkbox */
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-size: 13px;
  cursor: pointer;
}

.checkbox-row input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
}

/* Animation panel */
.anim-state-list {
  margin-bottom: 12px;
}

.anim-state-entry {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.1s;
  border: 1px solid transparent;
}

.anim-state-entry:hover { background: var(--surface2); border-color: var(--border); }
.anim-state-entry.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.anim-state-entry .state-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}

.anim-state-entry.enabled .state-dot { background: var(--success); }
.anim-state-entry.active .state-dot { background: #fff; }

.frame-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
}

.frame-nav span {
  font-size: 12px;
  color: var(--text-dim);
  min-width: 60px;
  text-align: center;
}

.anim-preview-box {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px;
  text-align: center;
  background: var(--surface2);
}

.anim-preview-box canvas {
  image-rendering: pixelated;
}

.anim-preview-box .preview-label {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 6px;
}

/* Timeline row (below pixel editor) */
.timeline-row {
  display: flex;
  align-items: stretch;
  gap: 12px;
  width: 100%;
  max-width: 700px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}

.timeline-preview {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 10px;
  border-right: 1px solid var(--border);
  min-width: 80px;
}

.timeline-preview canvas {
  image-rendering: pixelated;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg);
}

.timeline-preview .preview-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.timeline-strip {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.timeline-frames {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 0;
  align-items: center;
}

.timeline-frame {
  flex-shrink: 0;
  cursor: pointer;
  border: 2px solid var(--border);
  border-radius: 4px;
  padding: 2px;
  background: var(--bg);
  transition: border-color 0.1s, box-shadow 0.1s;
  position: relative;
}

.timeline-frame:hover { border-color: var(--border-light); }
.timeline-frame.active { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }

.timeline-frame canvas {
  image-rendering: pixelated;
  display: block;
}

.timeline-frame .frame-number {
  position: absolute;
  bottom: -1px;
  right: -1px;
  font-size: 9px;
  background: var(--surface2);
  color: var(--text-muted);
  padding: 0 3px;
  border-radius: 2px 0;
  line-height: 14px;
}

.timeline-frame.active .frame-number {
  background: var(--primary);
  color: #fff;
}

.timeline-controls {
  display: flex;
  gap: 4px;
  align-items: center;
}

.timeline-controls .btn-icon {
  width: 26px;
  height: 26px;
  font-size: 14px;
}

/* Level builder */
.level-canvas-wrap {
  flex: 1;
  overflow: auto;
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
}

.level-canvas {
  image-rendering: pixelated;
  cursor: crosshair;
}

.block-palette {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  flex: 1;
}

.block-palette-entry {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  cursor: pointer;
  border-radius: 4px;
  font-size: 12px;
  transition: background 0.1s;
  border: 1px solid transparent;
}

.block-palette-entry:hover { background: var(--surface2); border-color: var(--border); }
.block-palette-entry.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.block-palette-entry canvas {
  image-rendering: pixelated;
  border: 1px solid var(--border-light);
  border-radius: 2px;
}

.level-tools {
  padding: 8px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.level-tool-btn {
  padding: 8px 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  text-align: left;
  transition: all 0.1s;
}

.level-tool-btn:hover { background: var(--border); }
.level-tool-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* Game overlay */
#game-overlay {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 1000;
  display: flex;
  flex-direction: column;
}

#game-overlay.hidden { display: none; }

#game-header {
  height: 44px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

#game-status {
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
}

#game-canvas {
  flex: 1;
  width: 100%;
  image-rendering: pixelated;
}

#stop-test {
  padding: 6px 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.1s;
}

#stop-test:hover { background: var(--border); }

/* Modal */
#modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}

#modal-backdrop.hidden { display: none; }

#modal {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 24px;
  min-width: 320px;
  max-width: 420px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

#modal h3 {
  font-size: 16px;
  margin-bottom: 16px;
}

#modal-body {
  margin-bottom: 20px;
}

#modal-body .props-field {
  margin-bottom: 12px;
}

#modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* Coming soon */
.coming-soon {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--text-dim);
}

.coming-soon h2 {
  font-size: 28px;
  margin-bottom: 8px;
  color: var(--text);
}

.coming-soon p {
  font-size: 18px;
  opacity: 0.6;
}

/* Empty state */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-dim);
  font-size: 14px;
  gap: 12px;
  padding: 20px;
  text-align: center;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* Size badge */
.size-badge {
  font-size: 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--text-dim);
  margin-left: auto;
}

/* EBL Code Editor */
.ebl-editor-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ebl-editor-area {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: #12121e;
}

.ebl-line-nums {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 36px;
  padding: 12px 6px 12px 0;
  text-align: right;
  font: 13px/20px 'SF Mono','Fira Code','Cascadia Code',monospace;
  color: #4a4a66;
  background: #0e0e1a;
  border-right: 1px solid var(--border);
  overflow: hidden;
  user-select: none;
  white-space: pre;
}

.ebl-highlight, .ebl-textarea {
  margin: 0;
  padding: 12px 12px 12px 44px;
  font: 13px/20px 'SF Mono','Fira Code','Cascadia Code',monospace;
  white-space: pre;
  overflow: auto;
  min-height: 300px;
  max-height: 500px;
  tab-size: 2;
}

.ebl-highlight {
  position: absolute;
  inset: 0;
  pointer-events: none;
  color: #c8c8d8;
}

.ebl-textarea {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 300px;
  background: transparent;
  color: transparent;
  caret-color: #e8e8f0;
  border: none;
  outline: none;
  resize: vertical;
}

.ebl-comment { color: #5c6370; font-style: italic; }
.ebl-string { color: #98c379; }
.ebl-number { color: #d19a66; }
.ebl-keyword { color: #c678dd; font-weight: 600; }
.ebl-builtin { color: #e5c07b; }
.ebl-this { color: #e06c75; }
.ebl-func { color: #61afef; }
.ebl-op { color: #56b6c2; }
.ebl-bracket { color: #abb2bf; }

/* Autocomplete popup */
.ebl-autocomplete {
  position: absolute;
  z-index: 100;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.5);
  max-height: 200px;
  overflow-y: auto;
  min-width: 180px;
}

.ebl-ac-item {
  padding: 4px 10px;
  font: 12px/18px 'SF Mono','Fira Code',monospace;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text);
}

.ebl-ac-item:hover, .ebl-ac-item.active {
  background: var(--primary);
  color: #fff;
}

.ebl-ac-badge {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 3px;
  text-transform: uppercase;
  flex-shrink: 0;
}

.ebl-ac-fn { background: #2d4a7a; color: #61afef; }
.ebl-ac-var { background: #4a3a2a; color: #d19a66; }
.ebl-ac-ns { background: #3a2a4a; color: #c678dd; }

/* Error bar */
.ebl-error-bar {
  padding: 6px 10px;
  font-size: 12px;
  color: #ef4444;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 4px;
  line-height: 1.5;
  display: none;
}

.ebl-error-bar .ebl-error-line {
  color: #f87171;
  font-weight: 600;
}

/* Visual block editor */
.ebl-visual-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ebl-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 5px;
}

.ebl-block-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.ebl-block-header .ebl-block-color {
  width: 4px;
  height: 16px;
  border-radius: 2px;
  flex-shrink: 0;
}

.ebl-block-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 13px;
  flex-wrap: wrap;
}

.ebl-block-row label {
  color: var(--text-dim);
  font-size: 12px;
  min-width: 60px;
}

.ebl-block-row select, .ebl-block-row input[type="number"], .ebl-block-row input[type="text"] {
  padding: 3px 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 12px;
}

.ebl-block-row select { min-width: 120px; }
.ebl-block-row input[type="number"] { width: 65px; }

.ebl-block-nested {
  margin-left: 16px;
  padding-left: 12px;
  border-left: 2px solid var(--border);
}

.ebl-block-add {
  padding: 6px 12px;
  background: var(--surface2);
  border: 1px dashed var(--border);
  border-radius: 4px;
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  text-align: center;
}

.ebl-block-add:hover { border-color: var(--primary); color: var(--text); }

.ebl-block-remove {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 6px;
  border-radius: 3px;
}

.ebl-block-remove:hover { color: var(--danger); background: rgba(239,68,68,0.1); }

.ebl-state-tab {
  padding: 6px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px 4px 0 0;
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border-bottom: none;
}

.ebl-state-tab.active {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.ebl-custom-code textarea {
  width: 100%;
  padding: 8px;
  background: #12121e;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: #c8c8d8;
  font: 12px/18px 'SF Mono','Fira Code',monospace;
  resize: vertical;
  min-height: 40px;
}