/* ============================================================
   zone-c.css — CHEFSMART 编辑器 v7
   包含：C区画布工作区（.panel-c / .zc）及其子元素
         画布工具栏、配色预设栏、预览滚动区、画布尺寸容器、
         浮动工具栏（文本/图片）、右侧面板、预览工具栏
   ============================================================ */

/* ── C栏 — 主容器 ── */
.panel-c, .zc {
  flex: 1; min-width: 200px;
  display: flex; flex-direction: column;
  background: #FFFFFF; overflow: hidden;
  border-left: 1px solid var(--ui-border);
}

/* ============================================================
   C区工具栏
   ============================================================ */
.pc-toolbar, .zc__toolbar {
  height: 40px; flex-shrink: 0;
  display: flex; align-items: center;
  padding: 0 14px;
  background: var(--ui-white);
  border-bottom: 1px solid var(--ui-border);
}
.pc-toolbar-inner, .zc__toolbar-inner {
  display: flex; align-items: center; gap: 6px;
}

/* ============================================================
   配色预设栏
   ============================================================ */
.preset-bar, .zc__preset-bar {
  display: flex; align-items: center; gap: 4px;
}
.preset-btn, .zc__preset-btn {
  padding: 4px 10px;
  font-size: 11px;
  line-height: 1.4;
  white-space: nowrap;
  cursor: pointer;
  font-weight: 500;
  font-family: inherit;
  border: 1px solid #E5E7EB;
  background: #FFFFFF;
  color: #4B5563;
  border-left: 3px solid #9CA3AF;
}
.preset-btn:hover, .zc__preset-btn:hover {
  background: #F9FAFB;
  border-color: #D1D5DB;
}
.preset-btn.active, .zc__preset-btn--active {
  background: #F3F4F6;
  border-color: #9CA3AF;
  border-left-width: 3px;
  font-weight: 600;
  color: #1D1D1F;
}

/* 每个预设按钮的左侧色条 */
.preset-btn[data-preset="blackgrey"], .zc__preset-btn[data-preset="blackgrey"] { border-left-color: #1D1D1F; }
.preset-btn[data-preset="teal"], .zc__preset-btn[data-preset="teal"]      { border-left-color: #0ABAB5; }
.preset-btn[data-preset="gold"], .zc__preset-btn[data-preset="gold"]    { border-left-color: #F37021; }
.preset-btn[data-preset="red"], .zc__preset-btn[data-preset="red"]       { border-left-color: #DC2626; }

/* 激活态：更强烈的左侧色条 */
.preset-btn.active[data-preset="blackgrey"], .zc__preset-btn--active[data-preset="blackgrey"] { border-left-color: #1D1D1F; background: #F3F4F6; }
.preset-btn.active[data-preset="teal"], .zc__preset-btn--active[data-preset="teal"]      { border-left-color: #0ABAB5; background: #E6F7F6; color: #0ABAB5; }
.preset-btn.active[data-preset="gold"], .zc__preset-btn--active[data-preset="gold"]    { border-left-color: #F37021; background: #FFF8E1; color: #8B6914; }
.preset-btn.active[data-preset="red"], .zc__preset-btn--active[data-preset="red"]       { border-left-color: #DC2626; background: #FEF2F2; color: #B91C1C; }

/* ============================================================
   预览滚动区
   ============================================================ */
.preview-scroll, .zc__scroll {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  padding: 28px;
  background: #F5F7FA;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  scrollbar-gutter: stable;
}

/* 画布尺寸容器 */
.canvas-sizer, .zc__sizer {
  margin: 0 auto;
  position: relative;
  overflow: visible;
  width: 750px;
  flex-shrink: 0;
}

/* ============================================================
   画布浮动工具栏 — 文本
   ============================================================ */
.canvas-float-toolbar, .zc__float-toolbar {
  display: none;
  position: absolute; z-index: 100;
  background: #FFF;
  border: 1px solid var(--ui-border);
  box-shadow: 0 4px 16px rgba(0,0,0,0.14);
  padding: 6px 8px;
  gap: 4px;
  align-items: center;
  white-space: nowrap;
}
.canvas-float-toolbar.visible, .zc__float-toolbar--visible { display: flex; }

/* 浮动工具栏内部组件 */
.cft-group {
  display: flex; align-items: center; gap: 2px;
}
.cft-sep {
  width: 1px; height: 18px; background: var(--ui-border); margin: 0 4px;
}
.cft-btn {
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: none; cursor: pointer;
  color: var(--ui-sub); font-size: 12px; font-weight: 600;
}
.cft-btn:hover { background: #F3F4F6; color: var(--ui-text); }
.cft-btn.active { background: var(--color-primary-light); color: var(--color-primary); }
.cft-label {
  font-size: 9px; color: var(--ui-muted); margin-right: 2px;
  letter-spacing: 0.5px;
}
.cft-color-dot {
  width: 16px; height: 16px; cursor: pointer;
  border: 1px solid rgba(0,0,0,0.08);
}
.cft-slider {
  width: 60px; height: 4px;
  -webkit-appearance: none; appearance: none;
  background: var(--ui-border); outline: none;
}
.cft-slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 12px; height: 12px;
  background: var(--color-primary); cursor: pointer;
}

/* ============================================================
   右侧面板 — 预览工具栏（旧版布局）
   ============================================================ */
.right-panel {
  flex: 1; min-width: 200px;
  display: flex; flex-direction: column;
  background: #FFFFFF; overflow: hidden;
}
.preview-toolbar {
  height: 42px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
  background: var(--ui-white);
  border-bottom: 1px solid var(--ui-border);
}
.preview-toolbar-inner {
  display: flex; align-items: center; gap: 6px;
  background: var(--ui-white);
  border: 1px solid var(--ui-border);
  padding: 3px 6px;
}
.pt-label { font-size: 10px; color: var(--ui-muted); margin-right: 4px; font-weight: 500; }
.pt-btn {
  height: 28px; padding: 0 10px;
  font-size: 11px; color: var(--ui-sub);
  border: none; background: transparent;
  cursor: pointer; display: flex; align-items: center; gap: 3px;
  font-family: inherit;
}
.pt-btn:hover { background: #F3F4F6; }
.pt-btn.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
  font-weight: 600;
}
.pt-divider { width: 1px; height: 16px; background: var(--ui-border); margin: 0 2px; }
.b4-schemes { display: none; align-items: center; gap: 6px; }
.b4-schemes.show { display: flex; }
.b4-dot {
  width: 18px; height: 18px; cursor: pointer;
  border: 2px solid transparent;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.08);
}
.b4-dot.active { border-color: var(--color-primary); }
.b4-dot[data-s="teal"] { background: #0ABAB5; }
.b4-dot[data-s="gold"] { background: #F37021; }
.b4-dot[data-s="red"] { background: #CC0000; }