/* ================================================================
   WeWrite 编辑器 UI 样式
   仅控制编辑器界面，不干预 iframe 内的预览主题（预览由 wewrite.css 负责）
   ================================================================ */

* { box-sizing: border-box; }

:root {
  --ui-bg: #f5f6f7;
  --ui-bar: #1c1e1f;
  --ui-bar-fg: #e6e6e6;
  --ui-bar-fg-a: #a8a8a8;
  --ui-accent: #36a3d9;
  --ui-accent-dk: #2b86b3;
  --ui-border: #d6d8db;
  --ui-pane-bg: #ffffff;
  --ui-text: #1c1e1f;
  --ui-text-a: #6a6f73;
  --ui-mono: "SF Mono", "Cascadia Mono", Consolas, "Roboto Mono", Menlo, monospace;
  --ui-shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .06);
  --ui-radius: 6px;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--ui-bg);
  color: var(--ui-text);
  font-family: -apple-system, "HarmonyOS Sans", "MiSans", "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  overflow: hidden;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
}

/* ===== 顶部工具栏 ===== */
#toolbar {
  flex: 0 0 auto;
  background: var(--ui-bar);
  color: var(--ui-bar-fg);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  border-bottom: 1px solid #000;
  box-shadow: var(--ui-shadow);
  z-index: 10;
  min-height: 52px;
}

#toolbar .brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-right: auto;
}

#toolbar .brand .logo {
  font-size: 20px;
  line-height: 1;
}

#toolbar .brand .title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .3px;
}

#toolbar .brand .subtitle {
  font-size: 12px;
  color: var(--ui-bar-fg-a);
  margin-left: 6px;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 10px;
  border-left: 1px solid #3a3d3f;
}

.toolbar-group.toolbar-actions {
  border-left: none;
  gap: 8px;
  padding: 0;
}

.field {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--ui-bar-fg-a);
}

.field .label {
  white-space: nowrap;
}

.field .value {
  color: var(--ui-bar-fg);
  font-variant-numeric: tabular-nums;
  min-width: 36px;
  text-align: right;
}

#toolbar select,
#toolbar input[type="number"],
#toolbar input[type="range"],
#toolbar button {
  font-family: inherit;
  font-size: 12px;
  color: var(--ui-bar-fg);
  background: #2a2d2f;
  border: 1px solid #44484a;
  border-radius: 4px;
  padding: 4px 8px;
  outline: none;
  transition: border-color .15s, background .15s;
}

#toolbar select { padding: 4px 6px; cursor: pointer; }
#toolbar select:hover, #toolbar input:hover { border-color: var(--ui-accent); }

#toolbar input[type="range"] {
  padding: 0;
  height: 4px;
  width: 90px;
  -webkit-appearance: none;
  appearance: none;
  background: #44484a;
  cursor: pointer;
}
#toolbar input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ui-accent);
  border: none;
  cursor: pointer;
}
#toolbar input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ui-accent);
  border: none;
  cursor: pointer;
}

#toolbar button {
  cursor: pointer;
  white-space: nowrap;
}
#toolbar button:hover {
  background: #35393b;
  border-color: var(--ui-accent);
  color: #fff;
}
#toolbar button:active { transform: translateY(1px); }

#toolbar button.primary {
  background: var(--ui-accent);
  border-color: var(--ui-accent);
  color: #fff;
  font-weight: 600;
  padding: 6px 14px;
  font-size: 13px;
}
#toolbar button.primary:hover {
  background: var(--ui-accent-dk);
  border-color: var(--ui-accent-dk);
}

/* ===== 主体布局 ===== */
#main {
  flex: 1 1 auto;
  display: flex;
  flex-direction: row;
  min-height: 0;
  overflow: hidden;
}

.pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--ui-pane-bg);
}

#editorPane {
  flex: 0 0 50%;
  width: 50%;
  border-right: 1px solid var(--ui-border);
}

#previewPane {
  flex: 1 1 50%;
  background: var(--ui-bg);
}

.pane-header {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 14px;
  background: #ebedee;
  border-bottom: 1px solid var(--ui-border);
  font-size: 12px;
  color: var(--ui-text-a);
  user-select: none;
}

.pane-info {
  font-variant-numeric: tabular-nums;
  color: var(--ui-text-a);
}

#markdownInput {
  flex: 1 1 auto;
  width: 100%;
  border: none;
  outline: none;
  resize: none;
  padding: 16px 18px;
  font-family: var(--ui-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ui-text);
  background: var(--ui-pane-bg);
  tab-size: 4;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  overflow-y: auto;
  overflow-x: hidden;
  caret-color: var(--ui-accent);
}

#markdownInput::placeholder {
  color: #b0b4b8;
  white-space: pre-wrap;
}

/* 分隔条 */
#resizer {
  flex: 0 0 6px;
  width: 6px;
  cursor: col-resize;
  background: var(--ui-border);
  position: relative;
  z-index: 5;
  transition: background .15s;
}
#resizer::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2px;
  height: 32px;
  background: #b6babe;
  border-radius: 1px;
}
#resizer:hover, #resizer.active {
  background: var(--ui-accent);
}
#resizer:hover::before, #resizer.active::before {
  background: #fff;
}

/* 预览容器：模拟公众号编辑器外观 */
#previewWrap {
  flex: 1 1 auto;
  overflow: auto;
  padding: 24px 16px 60px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background:
    linear-gradient(45deg, #e8eaec 25%, transparent 25%, transparent 75%, #e8eaec 75%),
    linear-gradient(45deg, #e8eaec 25%, transparent 25%, transparent 75%, #e8eaec 75%);
  background-size: 20px 20px;
  background-position: 0 0, 10px 10px;
  background-color: #d8dadb;
}

#preview {
  width: 620px;
  max-width: 100%;
  border: none;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, .12), 0 1px 4px rgba(0, 0, 0, .08);
  transition: width .25s ease;
  /* 高度由 JS 根据内容动态设置，避免 iframe 固定高度导致内容被裁切看起来空白 */
}

/* ===== 底部状态栏 ===== */
#statusbar {
  flex: 0 0 auto;
  background: var(--ui-bar);
  color: var(--ui-bar-fg-a);
  padding: 6px 16px;
  font-size: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #000;
  min-height: 28px;
}

#statusbar .right { color: var(--ui-bar-fg-a); }

#copyStatus.success { color: #4ec76b; }
#copyStatus.error { color: #ff7676; }
#copyStatus.busy { color: #ffc043; }

/* ===== 响应式：窄屏幕上下排列 ===== */
@media (max-width: 880px) {
  #toolbar { gap: 8px; padding: 8px 10px; }
  .toolbar-group { padding: 0 6px; gap: 8px; }
  #main { flex-direction: column; }
  #editorPane {
    flex: 0 0 45%;
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--ui-border);
  }
  #previewPane { flex: 1 1 55%; }
  #resizer {
    flex: 0 0 4px;
    width: 100%;
    height: 4px;
    cursor: row-resize;
  }
  #resizer::before { width: 32px; height: 2px; }
}

/* 焦点可访问性 */
button:focus-visible, select:focus-visible, input:focus-visible {
  outline: 2px solid var(--ui-accent);
  outline-offset: 1px;
}

/* ===== 微调面板 ===== */

/* 微调面板：默认隐藏在右侧，open 时滑出 */
#inspectorPanel {
  flex: 0 0 0;
  width: 0;
  min-width: 0;
  border-left: 1px solid var(--ui-border);
  background: var(--ui-pane-bg);
  overflow: hidden;
  transition: flex-basis .3s ease, width .3s ease;
  display: flex;
  flex-direction: column;
}

#inspectorPanel.open {
  flex: 0 0 300px;
  width: 300px;
  min-width: 300px;
}

/* 面板打开时，预览区域不再居中，改为左对齐 */
body.inspector-open #previewWrap {
  justify-content: flex-start;
  padding-left: 16px;
}

#inspectorPanel .pane-header {
  flex: 0 0 auto;
}

#inspectorClose {
  background: none;
  border: none;
  color: var(--ui-text-a);
  font-size: 16px;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 4px;
  line-height: 1;
}
#inspectorClose:hover {
  background: var(--ui-bg);
  color: var(--ui-text);
}

#inspectorBody {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0;
}

/* 属性组 */
.insp-group {
  border-bottom: 1px solid var(--ui-border);
  padding: 10px 14px;
}

.insp-group-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--ui-text-a);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px dashed var(--ui-border);
}

/* 模式切换栏 */
.insp-mode-bar {
  display: flex;
  gap: 0;
  padding: 10px 14px;
  border-bottom: 1px solid var(--ui-border);
  background: #f0f2f3;
}

.insp-mode-btn {
  flex: 1;
  padding: 6px 10px;
  font-size: 12px;
  border: 1px solid var(--ui-border);
  background: var(--ui-pane-bg);
  color: var(--ui-text-a);
  cursor: pointer;
  transition: all .15s;
}
.insp-mode-btn:first-child { border-radius: 6px 0 0 6px; }
.insp-mode-btn:last-child { border-radius: 0 6px 6px 0; border-left: none; }
.insp-mode-btn.active {
  background: var(--ui-accent);
  color: #fff;
  border-color: var(--ui-accent);
}
.insp-mode-btn:hover:not(.active) {
  background: #e3e6e8;
  color: var(--ui-text);
}

/* 单行属性 */
.insp-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 8px;
}

.insp-label {
  font-size: 12px;
  color: var(--ui-text);
  white-space: nowrap;
  flex: 0 0 auto;
  min-width: 70px;
}

.insp-control {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1 1 auto;
  justify-content: flex-end;
}

.insp-control input[type="range"] {
  flex: 1 1 auto;
  width: 100%;
  min-width: 80px;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: #d6d8db;
  border-radius: 2px;
  cursor: pointer;
  outline: none;
}
.insp-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ui-accent);
  border: 2px solid #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
  cursor: pointer;
}
.insp-control input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ui-accent);
  border: 2px solid #fff;
  cursor: pointer;
}

.insp-control input[type="color"] {
  width: 32px;
  height: 24px;
  border: 1px solid var(--ui-border);
  border-radius: 4px;
  cursor: pointer;
  padding: 0;
  background: none;
}
.insp-control input[type="color"]::-webkit-color-swatch-wrapper { padding: 2px; }
.insp-control input[type="color"]::-webkit-color-swatch { border: none; border-radius: 2px; }

.insp-control select {
  font-size: 12px;
  padding: 3px 6px;
  border: 1px solid var(--ui-border);
  border-radius: 4px;
  background: var(--ui-pane-bg);
  color: var(--ui-text);
  cursor: pointer;
  max-width: 120px;
}

.insp-val {
  font-size: 11px;
  color: var(--ui-text-a);
  font-variant-numeric: tabular-nums;
  min-width: 40px;
  text-align: right;
  white-space: nowrap;
}

/* 重置按钮 */
.insp-reset {
  padding: 12px 14px;
  border-bottom: none;
}
.insp-reset button {
  width: 100%;
  padding: 8px;
  font-size: 12px;
  border: 1px solid var(--ui-border);
  border-radius: 6px;
  background: var(--ui-bg);
  color: var(--ui-text);
  cursor: pointer;
  transition: all .15s;
}
.insp-reset button:hover {
  background: var(--ui-accent);
  color: #fff;
  border-color: var(--ui-accent);
}

/* 滚动条样式 */
#inspectorBody::-webkit-scrollbar { width: 6px; }
#inspectorBody::-webkit-scrollbar-track { background: transparent; }
#inspectorBody::-webkit-scrollbar-thumb { background: #c0c4c8; border-radius: 3px; }
#inspectorBody::-webkit-scrollbar-thumb:hover { background: var(--ui-accent); }