/* ============================================================
 * AI 知识库引擎 Pro · Design Tokens
 * 创建于 2026-05-25，对应 spec §2 设计风格
 * ============================================================ */

:root {
  /* ===== Color · Primary (产品主色：柔和蓝) ===== */
  --color-primary-50:  #EEF2FF;
  --color-primary-100: #E0E7FF;
  --color-primary-200: #C7D2FE;
  --color-primary-300: #A5B4FC;
  --color-primary-500: #3366FF;
  --color-primary-600: #2952CC;
  --color-primary-700: #1F3D99;

  /* ===== Color · Neutral Gray ===== */
  --color-gray-50:  #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* ===== Color · Semantic ===== */
  --color-success: #10B981;
  --color-success-bg: #D1FAE5;
  --color-warning: #F59E0B;
  --color-warning-bg: #FEF3C7;
  --color-danger: #EF4444;
  --color-danger-bg: #FEE2E2;
  --color-info: #3B82F6;
  --color-info-bg: #DBEAFE;

  /* ===== Background & Border ===== */
  --bg-page: #F7F8FA;
  --bg-card: #FFFFFF;
  --border-default: #E5E7EB;
  --border-strong: #D1D5DB;

  /* ===== Radius ===== */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* ===== Shadow ===== */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px -4px rgba(0, 0, 0, 0.12);

  /* ===== Font ===== */
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue',
               -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Cascadia Code', Menlo, Consolas, monospace;

  /* ===== Z-index ===== */
  --z-topbar: 50;
  --z-drawer-backdrop: 100;
  --z-drawer: 101;
  --z-modal-backdrop: 110;
  --z-modal: 111;
  --z-toast: 200;
}

/* ============================================================
 * Base Styles
 * ============================================================ */

* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html, body {
  font-family: var(--font-sans);
  color: var(--color-gray-900);
  background: var(--bg-page);
  font-size: 14px;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* 滚动条美化 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--color-gray-400); }
::-webkit-scrollbar-track { background: transparent; }

/* 链接动效 */
a.link {
  color: var(--color-primary-500);
  transition: color .15s;
}
a.link:hover { color: var(--color-primary-700); text-decoration: underline; }

/* 工具类：截断 */
.truncate-1 {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.truncate-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================================
 * v3 客户化裁剪：默认隐藏的 data-feature 模块
 * 加 body.dev-mode 类可整体显示
 * （v2 的占位注释样板已在 v3 中清理；如需扩展更多 feature key，直接在下方列表追加即可）
 * ============================================================ */
[data-feature="module-workflow"],
[data-feature="module-tool"],
[data-feature="module-trigger"],
[data-feature="module-multi-tenant"],
[data-feature="module-enterprise"],
[data-feature="agent-long-memory"],
[data-feature="agent-version-ab-test"],
[data-feature="agent-reasoning"],
[data-feature="knowledge-web"],
[data-feature="knowledge-lark"],
[data-feature="knowledge-yuque"],
[data-feature="knowledge-workflow"],
[data-feature="access-wechat-mp"],
[data-feature="access-slack"] {
  display: none !important;
}

body.dev-mode [data-feature] {
  display: revert !important;
}

/* ============================================================
 * v3 左侧菜单 + 顶部面包屑布局
 * ============================================================ */
.app-shell {
  display: flex;
  min-height: 100vh;
}
.app-sidebar {
  width: 240px;
  background: #fff;
  border-right: 1px solid var(--border-default);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.app-sidebar-brand {
  height: 56px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border-default);
  font-weight: 600;
  color: var(--color-gray-900);
}
.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.app-topbar {
  height: 56px;
  background: #fff;
  border-bottom: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
}
.app-content {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
}
.sidebar-l1 {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--color-gray-700);
  cursor: pointer;
  border-left: 3px solid transparent;
}
.sidebar-l1:hover { background: var(--color-gray-50); }
.sidebar-l1.active {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  border-left-color: var(--color-primary-500);
  font-weight: 500;
}
.sidebar-divider {
  height: 1px;
  background: var(--border-default);
  margin: 8px 16px;
}
.local-storage-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: var(--color-gray-100);
  border-radius: 4px;
  font-size: 12px;
  color: var(--color-gray-600);
}
.sync-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: var(--color-success-bg);
  border-radius: 4px;
  font-size: 12px;
  color: var(--color-success);
}