/* ============================================================
   管理后台视图样式
   所有选择器以 .view-admin 开头；颜色/阴影仅使用 CSS 变量
   ============================================================ */

.view-admin .adm-page {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}
/* author 样式会盖过 UA 的 [hidden] 规则，显式兜底 */
.view-admin .adm-login-wrap[hidden],
.view-admin .adm-workbench[hidden],
.view-admin .adm-upload-bar[hidden],
.view-admin .modal-mask[hidden] {
  display: none;
}

/* ---------------- 登录卡 ---------------- */
.view-admin .adm-login-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.view-admin .adm-login-card {
  width: min(360px, 100%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 30px 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(24px) saturate(130%);
  -webkit-backdrop-filter: blur(24px) saturate(130%);
  text-align: center;
}
.view-admin .adm-login-icon {
  align-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent-2);
}
.view-admin .adm-login-title {
  font-size: 19px;
  font-weight: 700;
}
.view-admin .adm-login-sub {
  font-size: 12.5px;
  margin-top: -6px;
}
.view-admin .adm-login-err {
  font-size: 12.5px;
  color: var(--danger);
  line-height: 1.6;
}
.view-admin .adm-login-btn {
  width: 100%;
}

/* ---------------- 工作台 ---------------- */
.view-admin .adm-workbench {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.view-admin .adm-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.view-admin .adm-top-actions {
  display: flex;
  gap: 8px;
}

.view-admin .adm-grid {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
}
.view-admin .adm-col {
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px) saturate(130%);
  -webkit-backdrop-filter: blur(24px) saturate(130%);
  overflow: hidden;
}
.view-admin .adm-col-label {
  padding: 10px 14px 0;
  font-size: 12px;
  font-weight: 600;
}

/* ---------------- 左：meta + 章节树 ---------------- */
.view-admin .adm-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 14px 12px;
  border-bottom: 1px solid var(--border);
}
.view-admin .adm-meta-label {
  font-size: 11.5px;
  font-weight: 600;
}
.view-admin .input-sm {
  padding: 7px 10px;
  font-size: 13px;
  border-radius: 8px;
}
.view-admin .adm-meta-desc {
  resize: vertical;
  min-height: 44px;
  font-family: inherit;
  line-height: 1.6;
}
.view-admin .adm-meta-save {
  align-self: flex-end;
  margin-top: 2px;
}
.view-admin .adm-tree-actions {
  padding: 12px 14px 0;
}
.view-admin .adm-tree-actions .btn {
  width: 100%;
}
.view-admin .adm-drag-hint {
  padding: 8px 14px 0;
  font-size: 11px;
  line-height: 1.6;
}
.view-admin .adm-tree {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 8px;
}
.view-admin .adm-tree-state {
  padding: 16px 8px;
  text-align: center;
  color: var(--text-dim);
  font-size: 12.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.view-admin .adm-tree-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px 6px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-dim);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  user-select: none;
}
.view-admin .adm-tree-item:hover {
  background: var(--hover);
  color: var(--text);
}
.view-admin .adm-tree-item.active {
  background: var(--accent-soft);
  color: var(--accent-2);
  font-weight: 600;
}
.view-admin .adm-tree-item.dragging {
  opacity: 0.45;
}
/* 拖拽落点三态 */
.view-admin .adm-tree-item.drop-before {
  box-shadow: inset 0 2px 0 var(--accent);
}
.view-admin .adm-tree-item.drop-after {
  box-shadow: inset 0 -2px 0 var(--accent);
}
.view-admin .adm-tree-item.drop-inside {
  box-shadow: inset 0 0 0 2px var(--accent);
  background: var(--accent-soft);
}
.view-admin .adm-tree-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border: none;
  border-radius: 5px;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
}
.view-admin .adm-tree-toggle:hover {
  color: var(--accent-2);
}
.view-admin .adm-tree-toggle svg {
  transition: transform 0.18s ease;
}
.view-admin .adm-tree-item:not(.is-collapsed) > .adm-tree-toggle svg {
  transform: rotate(90deg);
}
.view-admin .adm-tree-toggle.is-leaf {
  visibility: hidden;
}
.view-admin .adm-tree-text {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.view-admin .adm-tree-acts {
  display: none;
  align-items: center;
  flex-shrink: 0;
}
.view-admin .adm-tree-item:hover .adm-tree-acts,
.view-admin .adm-tree-item.active .adm-tree-acts {
  display: inline-flex;
}
.view-admin .adm-act {
  width: 24px;
  height: 24px;
  border-radius: 6px;
}
.view-admin .adm-act svg {
  width: 12px;
  height: 12px;
}
.view-admin .adm-act-del:hover:not(:disabled) {
  color: var(--danger);
  background: var(--danger-soft);
}

/* ---------------- 中：编辑器 ---------------- */
.view-admin .adm-editor-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 12px 0;
}
.view-admin .adm-ch-title {
  flex: 1;
  font-weight: 600;
}
.view-admin .adm-dirty-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  flex-shrink: 0;
}
.view-admin .adm-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
  padding: 10px 12px 0;
}
.view-admin .adm-tb-sep {
  width: 1px;
  height: 18px;
  background: var(--border);
  margin: 0 6px;
}
.view-admin .adm-tb-txt {
  font-size: 11px;
  font-weight: 700;
  font-family: inherit;
}
.view-admin .adm-upload-bar {
  height: 4px;
  margin: 8px 12px 0;
  border-radius: 999px;
  background: var(--card-2);
  overflow: hidden;
}
.view-admin .adm-upload-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  transition: width 0.2s ease;
}
.view-admin .adm-editor {
  flex: 1;
  min-height: 0;
  margin: 10px 12px 0;
  padding: 12px 14px;
  resize: none;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: 'Cascadia Code', Consolas, 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.7;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
  user-select: text;
}
.view-admin .adm-editor:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.view-admin .adm-editor:disabled {
  opacity: 0.6;
}
.view-admin .adm-editor-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px 12px;
}
.view-admin .adm-status {
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------------- 右：预览 ---------------- */
.view-admin .adm-preview {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 10px 16px 16px;
  user-select: text;
}
.view-admin .adm-preview-empty {
  padding: 30px 0;
  text-align: center;
  font-size: 13px;
}
/* 预览区 markdown 排版（与 docs 正文一致） */
.view-admin .adm-preview-md {
  font-size: 13.5px;
  line-height: 1.8;
  word-break: break-word;
}
.view-admin .adm-preview-md h1,
.view-admin .adm-preview-md h2,
.view-admin .adm-preview-md h3,
.view-admin .adm-preview-md h4 {
  font-weight: 700;
  line-height: 1.4;
  margin: 18px 0 8px;
  color: var(--text);
}
.view-admin .adm-preview-md h1 { font-size: 19px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.view-admin .adm-preview-md h2 { font-size: 16.5px; }
.view-admin .adm-preview-md h3 { font-size: 15px; }
.view-admin .adm-preview-md h4 { font-size: 13.5px; }
.view-admin .adm-preview-md p { margin: 8px 0; }
.view-admin .adm-preview-md ul,
.view-admin .adm-preview-md ol {
  margin: 8px 0;
  padding-left: 24px;
}
.view-admin .adm-preview-md li { margin: 3px 0; }
.view-admin .adm-preview-md a {
  color: var(--accent-2);
  text-decoration: none;
}
.view-admin .adm-preview-md a:hover {
  text-decoration: underline;
}
.view-admin .adm-preview-md code {
  font-family: 'Cascadia Code', Consolas, 'Courier New', monospace;
  font-size: 12px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 5px;
}
.view-admin .adm-preview-md pre {
  margin: 12px 0;
  padding: 12px 14px;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow-x: auto;
}
.view-admin .adm-preview-md pre code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: 12px;
}
.view-admin .adm-preview-md blockquote {
  margin: 12px 0;
  padding: 6px 14px;
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  background: var(--accent-soft);
  color: var(--text-dim);
}
.view-admin .adm-preview-md table {
  width: 100%;
  margin: 12px 0;
  border-collapse: collapse;
  font-size: 12.5px;
}
.view-admin .adm-preview-md th,
.view-admin .adm-preview-md td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: left;
}
.view-admin .adm-preview-md th {
  background: var(--card-2);
}
.view-admin .adm-preview-md img {
  max-width: 100%;
  border-radius: 8px;
}
.view-admin .adm-preview-md hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 18px 0;
}

/* ---------------- 弹窗 ---------------- */
.view-admin .adm-modal-text {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
}
.view-admin .modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}
.view-admin .modal .input {
  margin-top: 12px;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1240px) {
  .view-admin .adm-grid {
    grid-template-columns: 240px minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
  }
  .view-admin .adm-tree-card {
    grid-row: 1 / span 2;
  }
}
@media (max-width: 820px) {
  .view-admin .adm-grid {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
  }
  .view-admin .adm-col {
    min-height: 320px;
  }
  .view-admin .adm-editor {
    min-height: 320px;
  }
}