/* =============================================
   移动端暗黑模式样式
   ============================================= */

/* ===== 暗黑模式移动端覆盖 ===== */
:root.dark {
  --surface: linear-gradient(135deg, #0f172a 0%, #1e1b4b 25%, #1e293b 50%, #18181b 75%, #1c1917 100%);
  --card: rgba(30, 41, 59, 0.85);
  --card-hover: rgba(30, 41, 59, 0.95);
  --card-glass: rgba(30, 41, 59, 0.6);
  --card-glass-hover: rgba(30, 41, 59, 0.8);
  --card-gradient: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.95) 100%);
  --primary-light: rgba(99, 102, 241, 0.2);
  --primary-glass: rgba(99, 102, 241, 0.1);
  --text: #f8fafc;
  --text-light: #e2e8f0;
  --text-muted: #94a3b8;
  --text-secondary: #64748b;
  --text-disabled: #475569;
  --text-inverse: #0f172a;
  --border: #334155;
  --border-light: #1e293b;
  --border-glass: rgba(255, 255, 255, 0.1);
  --border-glass-hover: rgba(255, 255, 255, 0.15);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.35), 0 4px 6px -2px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(99, 102, 241, 0.1);
  --muted: #94a3b8;
  --muted2: #64748b;
}

/* ===== 移动端特定覆盖 ===== */
@media (max-width: 900px) {
  :root.dark body {
    background: var(--surface);
  }

  :root.dark body::before {
    background:
      radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.12), transparent),
      radial-gradient(ellipse 60% 40% at 100% 100%, rgba(236, 72, 153, 0.08), transparent),
      radial-gradient(ellipse 50% 60% at 0% 80%, rgba(16, 185, 129, 0.08), transparent);
  }

  :root.dark body::after {
    display: none;
  }

  /* 顶部栏 */
  :root.dark .topbar {
    background: rgba(30, 41, 59, 0.9);
    border-bottom-color: rgba(255, 255, 255, 0.1);
  }

  /* 侧边栏 */
  :root.dark .sidebar {
    background: rgba(30, 41, 59, 0.95);
    border-color: rgba(255, 255, 255, 0.1);
  }

  /* 卡片 */
  :root.dark .card {
    background: rgba(30, 41, 59, 0.85);
    border-color: rgba(255, 255, 255, 0.1);
  }

  :root.dark .generate-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.05));
  }

  :root.dark .inbox-card {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.06), rgba(6, 182, 212, 0.04));
  }

  /* 输入框 */
  :root.dark .input,
  :root.dark .select,
  :root.dark .textarea {
    background: rgba(15, 23, 42, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
    color: #f8fafc;
  }

  :root.dark .input::placeholder,
  :root.dark .textarea::placeholder {
    color: #64748b;
  }

  /* 邮箱显示 */
  :root.dark .email-display {
    background: rgba(15, 23, 42, 0.6);
    border-color: #475569;
    color: #e2e8f0;
  }

  :root.dark .email-display.has-email {
    background: rgba(99, 102, 241, 0.15);
    border-color: #6366f1;
    color: #a5b4fc;
  }

  /* 邮箱项目 */
  :root.dark .mailbox-item {
    background: rgba(30, 41, 59, 0.6);
    border-color: rgba(255, 255, 255, 0.08);
  }

  :root.dark .mailbox-item:hover {
    background: rgba(30, 41, 59, 0.85);
    border-color: #6366f1;
  }

  :root.dark .mailbox-item .address {
    color: #f8fafc;
  }

  :root.dark .mailbox-item .time {
    color: #64748b;
  }

  /* 邮件项目 */
  :root.dark .email-item {
    background: rgba(30, 41, 59, 0.6);
    border-color: rgba(255, 255, 255, 0.08);
  }

  :root.dark .email-item:hover {
    background: rgba(30, 41, 59, 0.85);
    border-color: #6366f1;
  }

  :root.dark .email-sender {
    color: #f8fafc;
  }

  :root.dark .email-subject {
    color: #f8fafc;
  }

  :root.dark .email-preview {
    color: #94a3b8;
  }

  /* 搜索框 */
  :root.dark .search-input {
    background: rgba(15, 23, 42, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
    color: #f8fafc;
  }

  :root.dark .search-input::placeholder {
    color: #64748b;
  }

  /* 模态框 */
  :root.dark .modal {
    background: rgba(0, 0, 0, 0.75);
  }

  :root.dark .modal-card {
    background: rgba(30, 41, 59, 0.98);
    border-color: rgba(255, 255, 255, 0.1);
  }

  :root.dark .modal-body {
    background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.05) 100%);
  }

  /* 表单 */
  :root.dark .field-input,
  :root.dark .field-textarea {
    background: rgba(15, 23, 42, 0.6);
    border-color: rgba(255, 255, 255, 0.1);
    color: #f8fafc;
  }

  /* 按钮 */
  :root.dark .btn-ghost {
    border-color: rgba(255, 255, 255, 0.15);
    color: #e2e8f0;
  }

  :root.dark .btn-ghost:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: #6366f1;
    color: #a5b4fc;
  }

  /* 分页 */
  :root.dark .pager .muted {
    color: #94a3b8;
  }

  /* 状态显示 */
  :root.dark .loading-indicator {
    color: #e2e8f0;
  }

  :root.dark .spinner {
    border-color: rgba(99, 102, 241, 0.2);
    border-top-color: #6366f1;
  }

  /* 视图切换 */
  :root.dark .view-switch {
    background: rgba(30, 41, 59, 0.6);
    border-color: rgba(255, 255, 255, 0.08);
  }

  :root.dark .seg-btn {
    color: #94a3b8;
  }

  :root.dark .seg-btn[aria-pressed="true"] {
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
  }

  /* 角色徽章 */
  :root.dark .role-user {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(51, 65, 85, 0.8));
    border-color: #475569;
    color: #e2e8f0;
  }

  /* 空状态 */
  :root.dark .empty-state {
    color: #64748b;
  }

  :root.dark .empty-state .empty-text {
    color: #64748b;
  }

  /* 配置表单 */
  :root.dark .config-form {
    background: rgba(30, 41, 59, 0.7);
    border-color: rgba(255, 255, 255, 0.08);
  }

  :root.dark .config-label {
    color: #e2e8f0;
  }

  /* 范围滑块 */
  :root.dark .range-display {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.25);
  }

  :root.dark .len-value {
    color: #a5b4fc;
  }

  /* 邮箱操作 */
  :root.dark .mailbox-actions .btn-ghost {
    background: rgba(71, 85, 105, 0.2);
    color: #e2e8f0;
    border-color: #475569;
  }

  :root.dark .mailbox-actions .btn-ghost:hover {
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
    border-color: #6366f1;
  }
}