:root {
  --bg: #F5F0E8;
  --surface: #FFFDF7;
  --surface-alt: #EDE8DD;
  --border: #D4CDB8;
  --text: #2C2416;
  --text-muted: #8A7E6B;
  --accent: #E85D3A;
  --accent-hover: #D04A28;
  --accent-soft: #FFF0EC;
  --tool-active: #E85D3A;
  --tool-bg: #F5F0E8;
  --shadow: 0 2px 8px rgba(44,36,22,0.08);
  --shadow-lg: 0 4px 20px rgba(44,36,22,0.12);
  --radius: 10px;
  --radius-sm: 6px;
}

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

body {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text);
}

.logo-icon {
  width: 28px; height: 28px;
  background: var(--accent);
  border-radius: 6px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 2px;
  padding: 4px;
}
.logo-icon span {
  background: rgba(255,255,255,0.9);
  border-radius: 1px;
}
.logo-icon span:nth-child(2),
.logo-icon span:nth-child(4),
.logo-icon span:nth-child(6),
.logo-icon span:nth-child(8) { background: rgba(255,255,255,0.4); }

.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.btn {
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.btn:hover { background: var(--surface-alt); }
.btn-accent {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.btn-accent:hover { background: var(--accent-hover); }
.btn svg { width: 14px; height: 14px; }

.main-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.pattern-frame {
  flex: 1;
  min-width: 0;
  height: 100%;
  border: 0;
  background: #fff;
}

body.pattern-mode .toolbar,
body.pattern-mode .canvas-area,
body.pattern-mode .sidebar {
  display: none;
}

body.pattern-mode .header-actions > :not(.pattern-mode-action) {
  display: none;
}

body.pattern-mode .pattern-mode-action {
  display: flex !important;
}

.toolbar {
  width: 56px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  gap: 4px;
  flex-shrink: 0;
  overflow: visible;
}

.tool-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  position: relative;
}
.tool-btn:hover { background: var(--tool-bg); color: var(--text); }
.tool-btn.active {
  background: var(--accent-soft);
  color: var(--tool-active);
}
.tool-btn svg { width: 20px; height: 20px; }
.tool-menu-wrap {
  width: 46px;
  height: 40px;
  position: relative;
  flex: 0 0 46px;
}
.tool-menu-wrap > .tool-btn .tooltip { display: none; }
.brush-size-menu {
  display: none;
  position: absolute;
  left: 40px;
  top: 0;
  margin-left: 0;
  grid-template-columns: repeat(4, 32px);
  gap: 4px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  z-index: 120;
}
.tool-menu-wrap:hover .brush-size-menu,
.tool-menu-wrap:focus-within .brush-size-menu {
  display: grid;
}
.tool-sep {
  width: 28px;
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.tool-btn .tooltip {
  position: absolute;
  left: 52px;
  background: var(--text);
  color: var(--surface);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 100;
}
.tool-btn:hover .tooltip { opacity: 1; }

.canvas-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  background:
    radial-gradient(circle at 50% 50%, rgba(232,93,58,0.03) 0%, transparent 70%);
}

.canvas-wrapper {
  position: relative;
  box-shadow: var(--shadow-lg);
  border-radius: 4px;
  overflow: hidden;
}

#pixelCanvas {
  display: block;
  cursor: crosshair;
  background: #fff;
  image-rendering: pixelated;
}

.sidebar {
  width: 220px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
  flex-shrink: 0;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.panel-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-muted);
}

.color-current {
  display: flex;
  align-items: center;
  gap: 10px;
}

.color-preview {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.color-preview-fg {
  width: 100%;
  height: 100%;
}

#colorInput {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  opacity: 0;
  cursor: pointer;
}

.color-hex {
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  color: var(--text);
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  width: 90px;
}

.palette-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.palette-select {
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  flex: 1;
  min-width: 0;
}

.palette-actions {
  display: flex;
  gap: 3px;
  margin-left: 6px;
}

.palette-action-btn {
  width: 22px;
  height: 22px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  transition: all 0.15s;
  padding: 0;
}
.palette-action-btn:hover { background: var(--surface-alt); color: var(--text); }
.palette-action-btn.danger:hover { background: #fde8e8; color: #c0392b; }

.palette-swatch {
  position: relative;
}
.palette-swatch .swatch-label {
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--surface);
  padding: 2px 5px;
  border-radius: 3px;
  font-size: 9px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 50;
}
.palette-swatch:hover .swatch-label { opacity: 1; }

.custom-palette-editor {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.custom-palette-name {
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  width: 100%;
}

.custom-color-row {
  display: flex;
  gap: 6px;
  align-items: center;
}

.custom-color-input {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0;
  cursor: pointer;
  background: none;
}

.custom-color-hex {
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  width: 80px;
}

.custom-palette-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 8px;
  min-height: 30px;
  padding: 0 0 12px;
  background: transparent;
}

.custom-swatch-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.custom-swatch {
  width: 22px;
  height: 22px;
  border-radius: 3px;
  border: 1px solid rgba(0,0,0,0.1);
  cursor: pointer;
  position: relative;
}
.custom-swatch:hover::after {
  content: '×';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  color: white;
  font-size: 12px;
  font-weight: 700;
  border-radius: 3px;
}

.custom-swatch-label {
  font-size: 8px;
  line-height: 1;
  color: var(--text-muted);
  white-space: nowrap;
  pointer-events: none;
}

.custom-empty-msg {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  padding: 4px;
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 3px;
}

.palette-swatch {
  aspect-ratio: 1;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.1s;
}
.palette-swatch:hover { transform: scale(1.15); }
.palette-swatch.active { border-color: var(--text); }

.grid-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}
.grid-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
}

.toggle {
  width: 36px;
  height: 20px;
  background: var(--border);
  border-radius: 10px;
  border: none;
  cursor: pointer;
  position: relative;
  transition: background 0.2s;
}
.toggle.on { background: var(--accent); }
.toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: 50%;
  transition: transform 0.2s;
}
.toggle.on::after { transform: translateX(16px); }

.toolbar .brush-size-btn {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.toolbar .brush-size-btn:hover { background: var(--surface-alt); }
.toolbar .brush-size-btn.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.toolbar .brush-dot {
  background: var(--text);
  border-radius: 0;
}

.zoom-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}
.zoom-btn {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  transition: all 0.15s;
}
.zoom-btn:hover { background: var(--surface-alt); color: var(--text); }
.zoom-label {
  font-size: 12px;
  font-weight: 600;
  min-width: 40px;
  text-align: center;
}

.layers-panel {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.coords-bar {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  color: var(--text-muted);
  border: 1px solid var(--border);
  pointer-events: none;
  z-index: 10;
  margin-bottom: 52px;
}

.shortcut-hint {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 400;
  opacity: 0.7;
  margin-left: 4px;
}

.import-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(44,36,22,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.import-modal-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

.import-modal {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  width: min(420px, calc(100vw - 32px));
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.import-modal h3 {
  font-size: 14px;
  font-weight: 700;
}

#paletteOverlay .import-modal {
  width: min(440px, calc(100vw - 32px));
  padding: 30px;
  gap: 18px;
  max-height: calc(100vh - 32px);
  overflow: hidden;
}

#paletteOverlay .import-modal h3 {
  font-size: 18px;
}

#paletteOverlay .custom-palette-editor {
  gap: 14px;
  min-height: 0;
  flex: 1;
}

#paletteOverlay .custom-palette-name,
#paletteOverlay .custom-color-hex,
#paletteOverlay #colorMode {
  font-size: 14px !important;
  padding: 9px 11px !important;
}

#paletteOverlay .custom-palette-name {
  font-size: 15px !important;
}

#paletteOverlay .import-option {
  font-size: 14px;
}

#paletteOverlay .custom-color-row {
  gap: 10px;
}

#paletteOverlay #dmcNumberInput {
  width: 100px !important;
}

#paletteOverlay #dmcPreviewSwatch {
  width: 36px !important;
  height: 36px !important;
}

#paletteOverlay #addDmcBtn,
#paletteOverlay #addColorBtn,
#paletteOverlay .import-actions .btn {
  padding: 9px 16px !important;
  font-size: 14px !important;
}

#paletteOverlay .custom-palette-swatches {
  gap: 10px;
  padding: 12px 2px 14px;
  flex: 1;
  min-height: 120px;
  overflow-y: auto;
  align-content: flex-start;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

#paletteOverlay .custom-empty-msg {
  font-size: 13px;
}

#paletteOverlay .custom-swatch {
  width: 30px;
  height: 30px;
}

#paletteOverlay .custom-swatch span {
  bottom: -18px !important;
  font-size: 10px !important;
}

.import-preview-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-alt);
  border-radius: var(--radius-sm);
  padding: 18px;
  min-height: 240px;
}

.import-preview-wrap canvas {
  max-width: 100%;
  max-height: 280px;
  image-rendering: pixelated;
  border-radius: 2px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

.import-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
}

.import-size-option {
  align-items: stretch;
  flex-direction: column;
  gap: 10px;
}

.import-size-option > span:first-child {
  display: flex;
  align-items: center;
}

.import-size-label {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
}

.import-size-count {
  color: rgba(138, 126, 107, 0.72);
  font-size: 11px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.import-size-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.import-size-slider {
  flex: 1;
  min-width: 0;
}

.import-size-control input[type="number"] {
  width: 60px;
  padding: 5px 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.import-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

#importFile { display: none; }

.stitch-tracker {
  max-height: 200px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stitch-row {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 4px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  transition: background 0.1s;
  user-select: none;
}
.stitch-row:hover { background: var(--surface-alt); }
.stitch-row.done { opacity: 0.4; text-decoration: line-through; }

.stitch-check {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 2px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  transition: all 0.15s;
}
.stitch-row.done .stitch-check {
  background: #22c55e;
  border-color: #16a34a;
  color: #fff;
}

.stitch-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid rgba(0,0,0,0.15);
  flex-shrink: 0;
}

.stitch-count {
  font-size: 9px;
  color: var(--text-muted);
  margin-left: auto;
}

.stitch-progress {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 600;
}

@media print {
  header, .toolbar, .sidebar, .coords-bar { display: none; }
  body { background: white; }
  .canvas-area { background: none; }
  .canvas-wrapper { box-shadow: none; }
}