:root {
  --bg: #111118;
  --bg2: #1a1a28;
  --card: rgba(255,255,255,0.04);
  --text: #e0e0f0;
  --text2: #7a7a98;
  --text3: #44445e;
  --accent: #10b981;
  --accent2: #34d399;
  --border: rgba(255,255,255,0.06);
  --radius: 12px;
  --font: 'Inter', sans-serif;
  --transition: 0.2s ease;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 20px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 800;
  margin-right: 8px;
}

.logo i { color: var(--accent); }

.tool-group {
  display: flex;
  gap: 4px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
}

.tool-btn {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: transparent;
  border: none;
  color: var(--text2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: var(--transition);
}

.tool-btn:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.tool-btn.active { background: var(--accent); color: white; }

.size-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.size-selector label {
  font-size: 0.75rem;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.size-selector select {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  outline: none;
}

.size-selector select option { background: var(--bg2); }

/* Workspace */
.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 200px;
  padding: 16px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

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

.preview-current {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 2px solid var(--border);
  cursor: pointer;
}

input[type="color"] {
  -webkit-appearance: none;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background: none;
  padding: 0;
}

input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: 2px solid var(--border); border-radius: 10px; }

.palette {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
}

.palette-color {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 4px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}

.palette-color:hover { transform: scale(1.15); }
.palette-color.active { border-color: white; box-shadow: 0 0 6px rgba(255,255,255,0.3); }

.label {
  font-size: 0.7rem;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.recent-list {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.recent-swatch {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid var(--border);
}

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

.save-btn {
  padding: 8px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.save-btn:hover { background: var(--accent2); }

.gallery-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.gallery-thumb {
  border-radius: 6px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
  image-rendering: pixelated;
  width: 100%;
}

.gallery-thumb:hover { border-color: var(--accent); }

/* Canvas Container */
.canvas-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.canvas-wrapper {
  position: relative;
  image-rendering: pixelated;
}

#pixelCanvas, #gridCanvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#gridCanvas {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

/* Footer */
.footer {
  text-align: center;
  padding: 8px;
  font-size: 0.75rem;
  color: var(--text3);
  border-top: 1px solid var(--border);
  background: var(--bg2);
}

.footer a { color: var(--accent); text-decoration: none; }

/* Responsive */
@media (max-width: 768px) {
  .workspace { flex-direction: column; }
  .sidebar {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 10px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
  }
  .palette { grid-template-columns: repeat(12, 1fr); }
  .toolbar { padding: 8px 12px; }
}