/* ===== 画布编辑器样式 ===== */

.canvas-area {
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  overflow: hidden;
  position: relative;
}

/* 工具栏 */
.canvas-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  gap: 8px;
  flex-shrink: 0;
  z-index: 10;
}

.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.toolbar-center { flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px; }

.tool-btn {
  width: 28px;
  height: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 700;
  transition: var(--transition);
}

.tool-btn:hover { background: var(--bg-hover); color: var(--text-primary); border-color: var(--border-light); }
.tool-btn.active { background: var(--accent-light); color: var(--accent); border-color: var(--accent-border); }

.toolbar-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px;
}

.size-select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 10px;
  font-size: 12px;
  color: var(--text-primary);
  min-width: 160px;
}

.size-select option { background: var(--bg-card); }

.custom-size-inputs {
  display: flex;
  align-items: center;
  gap: 6px;
}

.custom-size-inputs input {
  width: 60px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 6px;
  font-size: 12px;
  color: var(--text-primary);
  text-align: center;
}

.custom-size-inputs span { color: var(--text-muted); }

.zoom-label { font-size: 11px; color: var(--text-muted); }
.zoom-level { font-size: 12px; color: var(--text-secondary); min-width: 38px; text-align: center; }

/* 画布包装 */
.canvas-wrapper {
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: repeating-conic-gradient(#1a1a1a 0% 25%, #141414 0% 50%) 0 0 / 16px 16px;
  position: relative;
}

.canvas-container {
  position: relative;
  transform-origin: center center;
  box-shadow: 0 8px 40px rgba(0,0,0,0.8), 0 0 0 1px rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
  transition: transform 0.2s ease;
}

#mainCanvas {
  display: block;
}

/* 画布选中状态指示 */
.canvas-container.has-selection::after {
  content: '';
  position: absolute;
  inset: -3px;
  border: 2px solid var(--accent);
  border-radius: 4px;
  pointer-events: none;
  opacity: 0.6;
}

/* 生成结果栏 */
.generated-results {
  flex-shrink: 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  max-height: 160px;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
}

.close-results {
  color: var(--text-muted);
  font-size: 16px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.close-results:hover { background: var(--bg-hover); color: var(--text-primary); }

.results-scroll {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 10px 12px;
}

.result-card {
  flex-shrink: 0;
  width: 140px;
  height: 90px;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
}

.result-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.result-card.selected { border-color: var(--accent); }

.result-card canvas { width: 100% !important; height: 100% !important; }

.result-card-label {
  position: absolute;
  top: 4px;
  left: 4px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 9px;
  padding: 2px 5px;
  border-radius: 3px;
}

.result-card-apply {
  position: absolute;
  inset: 0;
  background: rgba(124,92,252,0.85);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.result-card:hover .result-card-apply { opacity: 1; }

/* Fabric.js 自定义控件样式 */
.canvas-container .upper-canvas {
  cursor: default;
}

/* 辅助线 */
.canvas-guidelines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}