/**
 * LightRAG 移动端界面（移动设计规范 v2）
 *
 * 遵循标准:
 * - Material Design 3 (Google) — 触摸目标 ≥48dp
 * - iOS Human Interface Guidelines — 触摸目标 ≥44pt
 * - WCAG 2.1 — 色彩对比度、可读性
 * - Mobile Web Best Practices — 视口、缩放、安全区
 *
 * 修复内容:
 * - body padding-bottom 改为按需添加 (.has-mobile-tabs)
 */

/* ============================================================
   1. 全局重置与基础变量
   ============================================================ */
:root {
  --mobile-safe-top: env(safe-area-inset-top, 0px);
  --mobile-safe-bottom: env(safe-area-inset-bottom, 0px);
  --mobile-safe-left: env(safe-area-inset-left, 0px);
  --mobile-safe-right: env(safe-area-inset-right, 0px);
  --mobile-margin: 16px;
  --mobile-touch-min: 48px;
  --mobile-radius: 12px;
  --mobile-font-base: 16px;
  --mobile-font-small: 14px;
  --mobile-font-xs: 12px;
}

* {
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

#root {
  width: 100%;
  max-width: 100vw;
  min-height: 100dvh;
  overflow-x: hidden;
}

/* ============================================================
   2. 手机端 (≤ 640px)
   ============================================================ */
@media (max-width: 640px) {

  /* ========================================
     2a. 登录页面 —— 全屏、居中、舒适
     ======================================== */
  /* 登录容器占据全屏 */
  #root.lrag-login-page > div:first-child {
    min-height: 100dvh !important;
    padding: 0 !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%) !important;
  }

  /* 暗色模式适配 */
  @media (prefers-color-scheme: dark) {
    #root.lrag-login-page > div:first-child {
      background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%) !important;
    }
  }

  /* 登录卡片 */
  #root.lrag-login-page > div:first-child > div:first-child {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    margin: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    border: none !important;
    background: transparent !important;
    padding: 24px 20px !important;
  }

  /* 图标+标题行 —— 居中、不换行 */
  #root.lrag-login-page > div:first-child [class*="gap-3"] {
    flex-wrap: nowrap !important;
    justify-content: center !important;
    gap: 12px !important;
    margin-bottom: 16px !important;
  }

  /* 闪电图标 */
  #root.lrag-login-page > div:first-child [class*="gap-3"] svg,
  #root.lrag-login-page > div:first-child [class*="gap-3"] img {
    width: 40px !important;
    height: 40px !important;
  }

  /* 标题 */
  #root.lrag-login-page h1 {
    font-size: 24px !important;
    font-weight: 700 !important;
    letter-spacing: -0.3px !important;
  }

  /* 描述文字 */
  #root.lrag-login-page > div:first-child p {
    font-size: 14px !important;
    color: #64748b !important;
    margin-top: 4px !important;
  }

  /* ========================================
     2b. 登录表单
     ======================================== */
  /* 表单容器 */
  #root.lrag-login-page form {
    width: 100% !important;
    max-width: 100% !important;
    background: #ffffff !important;
    border-radius: var(--mobile-radius) !important;
    padding: 20px 16px !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06) !important;
  }

  @media (prefers-color-scheme: dark) {
    #root.lrag-login-page form {
      background: #1e293b !important;
      box-shadow: 0 1px 3px rgba(0,0,0,0.3) !important;
    }
  }

  /* 输入行：垂直排列（标签在上，输入框在下） */
  #root.lrag-login-page form > div {
    margin-bottom: 16px !important;
  }
  #root.lrag-login-page form div[class*="flex"][class*="items-center"][class*="gap-4"] {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 4px !important;
  }

  /* 标签 */
  #root.lrag-login-page form label {
    width: auto !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    color: #334155 !important;
    text-align: left !important;
    margin-bottom: 2px !important;
  }
  @media (prefers-color-scheme: dark) {
    #root.lrag-login-page form label {
      color: #cbd5e1 !important;
    }
  }

  /* 输入框 */
  #root.lrag-login-page form input {
    width: 100% !important;
    max-width: 100% !important;
    min-height: var(--mobile-touch-min) !important;
    font-size: var(--mobile-font-base) !important;
    padding: 12px 16px !important;
    border: 1.5px solid #e2e8f0 !important;
    border-radius: 10px !important;
    background: #f8fafc !important;
    color: #0f172a !important;
    outline: none !important;
    transition: border-color 0.2s, box-shadow 0.2s !important;
  }
  #root.lrag-login-page form input:focus {
    border-color: #3b82f6 !important;
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15) !important;
  }
  @media (prefers-color-scheme: dark) {
    #root.lrag-login-page form input {
      background: #0f172a !important;
      border-color: #334155 !important;
      color: #f1f5f9 !important;
    }
    #root.lrag-login-page form input:focus {
      border-color: #60a5fa !important;
      box-shadow: 0 0 0 3px rgba(96,165,250,0.2) !important;
    }
  }

  /* 登录按钮 */
  #root.lrag-login-page form button[type="submit"] {
    width: 100% !important;
    min-height: var(--mobile-touch-min) !important;
    font-size: var(--mobile-font-base) !important;
    font-weight: 600 !important;
    border-radius: 10px !important;
    border: none !important;
    margin-top: 8px !important;
    background: #3b82f6 !important;
    color: #ffffff !important;
    cursor: pointer !important;
    transition: background 0.2s, transform 0.1s !important;
  }
  #root.lrag-login-page form button[type="submit"]:active {
    transform: scale(0.98) !important;
    background: #2563eb !important;
  }
  #root.lrag-login-page form button[type="submit"]:disabled {
    opacity: 0.6 !important;
  }

  /* 记住密码 */
  #lrag-remember-wrapper {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 0 0 16px 0 !important;
    font-size: 14px !important;
    color: #64748b !important;
  }
  #lrag-remember-cb {
    width: 20px !important;
    height: 20px !important;
    accent-color: #3b82f6 !important;
  }

  /* ========================================
     2c. 底部留空给标签栏（仅当标签栏存在时）
     ======================================== */
  body.has-mobile-tabs {
    padding-bottom: 56px;
  }

  /* ========================================
     2d. 聊天/查询界面
     ======================================== */
  /* 消息气泡 */
  [class*="message"] {
    max-width: 90% !important;
    font-size: var(--mobile-font-base) !important;
    line-height: 1.6 !important;
    border-radius: 12px !important;
  }

  /* 用户消息右对齐 */
  [class*="message"][class*="justify-end"] {
    margin-left: auto !important;
  }

  /* 输入框区域 */
  [class*="chat"] form,
  [class*="retrieve"] form,
  [class*="input"] form {
    padding-left: 12px !important;
    padding-right: 12px !important;
    padding-bottom: max(8px, var(--mobile-safe-bottom)) !important;
    gap: 8px !important;
    background: transparent !important;
    box-shadow: none !important;
  }

  /* 聊天输入框 */
  [class*="chat"] input,
  [class*="retrieve"] input {
    border-radius: 24px !important;
    padding: 12px 18px !important;
  }

  /* 发送按钮 */
  [class*="chat"] button[type="submit"],
  [class*="retrieve"] button[type="submit"] {
    width: 48px !important;
    height: 48px !important;
    border-radius: 50% !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
  }

  /* 查询模式选择器 */
  [class*="query"] [class*="select"],
  [class*="query"] select,
  [role="combobox"] {
    min-height: var(--mobile-touch-min) !important;
    font-size: var(--mobile-font-small) !important;
    max-width: 100% !important;
  }

  /* ========================================
     2e. 图表面板
     ======================================== */
  [class*="graph"] {
    width: 100% !important;
    height: 55dvh !important;
    min-height: 300px !important;
  }
  [class*="graph"] canvas,
  [class*="graph"] svg {
    max-width: 100% !important;
  }
  [class*="graph"] button,
  [class*="graph"] [class*="control"] {
    min-height: 36px !important;
    padding: 6px 10px !important;
    font-size: var(--mobile-font-xs) !important;
  }

  /* ========================================
     2f. 文档列表 / 表格
     ======================================== */
  table, [role="table"] {
    width: 100% !important;
    display: block !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    font-size: var(--mobile-font-small) !important;
  }
  table td, table th {
    padding: 8px 10px !important;
    white-space: nowrap !important;
  }

  /* ========================================
     2g. 弹出菜单 / 下拉框
     ======================================== */
  [role="listbox"],
  [class*="dropdown"],
  [class*="menu"] {
    max-height: 40dvh !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }

  /* ========================================
     2h. 标签 / 面包屑
     ======================================== */
  [class*="badge"], [class*="tag"], [class*="chip"] {
    font-size: var(--mobile-font-xs) !important;
    padding: 4px 10px !important;
    border-radius: 16px !important;
  }

  /* ========================================
     2i. 低优先级元素隐藏
     ======================================== */
  [class*="hidden-sm"],
  [class*="sm\\:hidden"] {
    display: none !important;
  }

  /* ========================================
     2j. 竖屏核心修复 —— 防止内容截断
     ======================================== */
  /* 主内容区域自适应高度 + 可滚动 */
  [class*="main"],
  [role="main"],
  main,
  section[class*="flex-1"],
  div[class*="flex-1"] {
    flex: 1 1 auto !important;
    min-height: 0 !important;
    height: auto !important;
    max-height: none !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }

  /* 所有 flex 容器内的子项防止溢出 */
  [class*="flex"] > [class*="flex-1"] {
    min-height: 0 !important;
    min-width: 0 !important;
  }

  /* 修复固定高度容器截断内容 */
  [style*="height"]:not([style*="100%"]) {
    min-height: auto !important;
  }

  /* 内容区域撑满 */
  #root > div {
    min-height: 0 !important;
    flex: 1 1 auto !important;
  }

  /* 侧边栏导航项触摸友好 */
  [class*="sidebar"] a,
  [class*="sidebar"] button,
  [role="tab"],
  [class*="nav"] a {
    min-height: 44px !important;
    padding: 10px 14px !important;
    font-size: 14px !important;
  }

  /* 模态框内部滚动 */
  [role="dialog"] {
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }
  [role="dialog"] > * {
    max-height: none !important;
  }

  /* 所有横向排列的按钮组自动换行 */
  [class*="flex"][class*="gap-"][class*="items-center"] > button,
  [class*="flex"][class*="gap-"][class*="items-center"] > a {
    white-space: nowrap !important;
    font-size: 13px !important;
    padding: 6px 10px !important;
    flex-shrink: 0 !important;
  }

} /* end @media max-width:640px */


/* ============================================================
   3. 横屏手机
   ============================================================ */
@media (max-height: 500px) and (orientation: landscape) {
  #root.lrag-login-page > div:first-child > div:first-child {
    padding: 8px 20px !important;
  }
  #root.lrag-login-page form {
    padding: 12px 16px !important;
  }
  #root.lrag-login-page h1 {
    font-size: 20px !important;
  }
  #root.lrag-login-page > div:first-child [class*="gap-3"] {
    margin-bottom: 8px !important;
  }
  #root.lrag-login-page > div:first-child [class*="gap-3"] svg {
    width: 32px !important;
    height: 32px !important;
  }
  #root.lrag-login-page form > div {
    margin-bottom: 8px !important;
  }
}


/* ============================================================
   4. 极小屏 (≤ 360px)
   ============================================================ */
@media (max-width: 360px) {
  #root.lrag-login-page h1 {
    font-size: 20px !important;
  }
  #root.lrag-login-page form input,
  #root.lrag-login-page form button {
    min-height: 44px !important;
    font-size: 15px !important;
  }
  #root.lrag-login-page > div:first-child > div:first-child {
    padding: 16px 12px !important;
  }
  #root.lrag-login-page form {
    padding: 16px 12px !important;
  }
}


/* ============================================================
   5. 平板 (641px - 768px)
   ============================================================ */
@media (min-width: 641px) and (max-width: 768px) {
  [role="dialog"],
  [class*="sidebar"],
  [data-sidebar] {
    max-width: 70vw !important;
  }
  [class*="graph"] {
    height: 50vh !important;
  }
}