/* FontMaker — Dark Theme */
:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-tertiary: #0f3460;
  --bg-surface: #222244;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0b0;
  --accent: #e94560;
  --accent-hover: #ff6b81;
  --border: #333355;
  --glyph-bg: #2a2a4a;
  --glyph-hover: #3a3a5a;
  --glyph-active: #4a4a6a;
  --guide-baseline: #e94560;
  --guide-xheight: #53d769;
  --guide-ascender: #5ac8fa;
  --guide-descender: #ff9500;
  --canvas-bg: #1e1e3a;
  --scrollbar-thumb: #444466;
  --success: #53d769;
  --warning: #ff9500;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  -webkit-user-select: none;
  user-select: none;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }

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

/* Toolbar */
#toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  min-height: 44px;
  flex-wrap: wrap;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.toolbar-right {
  margin-left: auto;
}

.tool-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
  transition: all 0.15s;
}

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

.tool-btn.active {
  background: var(--bg-tertiary);
  color: var(--accent);
  border-color: var(--accent);
}

.tool-btn.accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.tool-btn.accent:hover {
  background: var(--accent-hover);
}

.tool-btn svg {
  flex-shrink: 0;
}

.toolbar-label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 12px;
}

.toolbar-label input[type="range"] {
  width: 80px;
}

.brush-presets {
  gap: 2px !important;
}

.brush-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 4px 8px;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 10px;
  transition: all 0.15s;
}

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

.brush-btn.active {
  background: var(--bg-tertiary);
  color: var(--accent);
  border-color: var(--accent);
}

/* Main Content */
#main-content {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* Glyph Grid Panel */
#glyph-grid-panel {
  width: 200px;
  min-width: 150px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

#glyph-grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  gap: 8px;
}

#glyph-search {
  flex: 1;
  max-width: 100px;
  padding: 3px 6px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 11px;
  outline: none;
}

#glyph-search:focus {
  border-color: var(--accent);
}

#glyph-grid {
  flex: 1;
  overflow-y: auto;
  padding: 6px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3px;
  align-content: start;
}

.glyph-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glyph-bg);
  border-radius: 4px;
  cursor: pointer;
  font-size: 18px;
  transition: background 0.15s;
  position: relative;
  border: 2px solid transparent;
}

.glyph-cell:hover {
  background: var(--glyph-hover);
}

.glyph-cell.active {
  background: var(--glyph-active);
  border-color: var(--accent);
}

.glyph-cell.defined::after {
  content: '';
  position: absolute;
  top: 3px;
  right: 3px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--success);
}

.glyph-cell .glyph-char {
  font-size: 20px;
  line-height: 1;
}

.glyph-cell .glyph-label {
  position: absolute;
  bottom: 1px;
  font-size: 8px;
  color: var(--text-secondary);
  opacity: 0.6;
}

/* Editor Panel */
#editor-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  background: var(--canvas-bg);
  min-width: 0;
}

#editor-canvas {
  flex: 1;
  width: 100%;
  touch-action: none;
  cursor: crosshair;
}

#editor-status {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 10px;
  background: rgba(0,0,0,0.5);
  font-size: 11px;
  color: var(--text-secondary);
}

/* Properties Panel */
#properties-panel {
  width: 220px;
  min-width: 180px;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 12px;
  flex-shrink: 0;
}

#properties-panel h3 {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

#properties-panel h3:not(:first-child) {
  margin-top: 16px;
}

.prop-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.prop-group label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 11px;
  color: var(--text-secondary);
}

.prop-group input[type="text"],
.prop-group input[type="number"] {
  padding: 4px 6px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 12px;
  outline: none;
}

.prop-group input[type="text"]:focus {
  border-color: var(--accent);
}

.prop-group input[type="range"] {
  width: 100%;
}

.checkbox-label {
  flex-direction: row !important;
  align-items: center;
  gap: 6px !important;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--accent);
}

/* Buttons */
.btn {
  padding: 6px 12px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s;
}

.btn:hover {
  background: var(--glyph-hover);
}

.btn.accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

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

.btn.large {
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
}

/* Bottom Panel */
#bottom-panel {
  height: 250px;
  min-height: 100px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

#bottom-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.tab-btn {
  padding: 8px 20px;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.15s;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.03);
}

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

#tab-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.tab-pane {
  display: none;
  position: absolute;
  inset: 0;
  padding: 10px;
  overflow-y: auto;
}

.tab-pane.active {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Preview Tab */
.preview-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.preview-controls input[type="text"] {
  flex: 1;
  padding: 6px 10px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  outline: none;
}

.preview-controls input[type="text"]:focus {
  border-color: var(--accent);
}

.preview-controls select {
  padding: 4px 6px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 12px;
  outline: none;
}

.preview-controls label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}

#preview-canvas {
  flex: 1;
  width: 100%;
  background: var(--canvas-bg);
  border-radius: 4px;
}

/* Kerning Tab */
.kerning-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.kerning-controls input[type="text"] {
  flex: 1;
  padding: 6px 10px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  outline: none;
}

#kerning-canvas {
  flex: 1;
  width: 100%;
  background: var(--canvas-bg);
  border-radius: 4px;
  min-height: 80px;
}

#kern-pairs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  max-height: 60px;
  overflow-y: auto;
}

.kern-pair-badge {
  padding: 2px 8px;
  background: var(--bg-surface);
  border-radius: 4px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
}

.kern-pair-badge:hover {
  background: var(--glyph-hover);
  color: var(--text-primary);
}

.kern-pair-badge .kern-value {
  color: var(--accent);
  margin-left: 4px;
}

/* Ligature Tab */
.ligature-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.ligature-controls input[type="text"] {
  width: 200px;
  padding: 6px 10px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  outline: none;
}

#ligature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ligature-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--bg-surface);
  border-radius: 6px;
  border: 1px solid var(--border);
}

.ligature-item .lig-seq {
  font-weight: 600;
  color: var(--accent);
  font-size: 16px;
}

.ligature-item .lig-status {
  font-size: 10px;
  color: var(--text-secondary);
}

.ligature-item .lig-status.defined {
  color: var(--success);
}

.ligature-item button {
  padding: 2px 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 3px;
  cursor: pointer;
  font-size: 11px;
}

.ligature-item button:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Export Tab */
.export-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 400px;
}

.export-field label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 12px;
  color: var(--text-secondary);
}

.export-field input[type="text"],
.export-field select {
  padding: 6px 10px;
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  outline: none;
}

.export-stats {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* Input styling */
input[type="range"] {
  -webkit-appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

/* Alternates */
#alternates-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
}

.alt-btn {
  padding: 4px 8px;
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  position: relative;
  transition: all 0.15s;
}

.alt-btn:hover {
  background: var(--glyph-hover);
  color: var(--text-primary);
}

.alt-btn.active {
  background: var(--bg-tertiary);
  color: var(--accent);
  border-color: var(--accent);
}

.alt-remove {
  margin-left: 4px;
  color: var(--text-secondary);
  cursor: pointer;
  font-weight: bold;
}

.alt-remove:hover {
  color: var(--accent);
}

#editor-status button {
  pointer-events: auto;
}

/* Responsive for iPad */
@media (max-width: 1024px) {
  #glyph-grid-panel {
    width: 140px;
  }
  #properties-panel {
    width: 180px;
  }
  #glyph-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  #main-content {
    flex-direction: column;
  }
  #glyph-grid-panel {
    width: 100%;
    height: 80px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  #glyph-grid {
    grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
    grid-auto-rows: 36px;
  }
  .glyph-cell {
    font-size: 14px;
  }
  #properties-panel {
    display: none;
  }
}