/* =============================================
   admin/assets/common.css — 后台通用样式
   供 admin-workspace、page-config、page-tabbar、operation-logs 等页面使用
   ============================================= */

/* --- CSS变量（与admin-global.css保持一致） --- */
:root {
  --primary: #1a5632;
  --primary-dark: #0f3d24;
  --primary-light: #2d8a56;
  --primary-bg: #e8f5e9;
  --danger: #c62828;
  --warning: #e65100;
  --success: #2e7d32;
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f0f2f5;
  --gray-200: #e0e0e0;
  --gray-300: #d0d0d0;
  --gray-400: #bdbdbd;
  --gray-500: #9e9e9e;
  --gray-600: #757575;
  --gray-800: #424242;
  --gray-900: #212121;
  --sidebar-w: 220px;
  --sidebar-collapsed-w: 60px;
  --header-h: 56px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --z-sidebar: 100;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; -webkit-font-smoothing: antialiased; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--gray-100);
  color: var(--gray-900);
  line-height: 1.5;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- 布局 --- */
.admin-layout { display: flex; min-height: 100vh; }
.main-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: 20px 24px;
  transition: margin-left var(--transition-normal);
  max-width: 100%;
  min-height: 100vh;
  background: var(--gray-100);
}
.sidebar.collapsed ~ .main-content { margin-left: var(--sidebar-collapsed-w); }

/* --- 页面标题 --- */
.page-header {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-200);
}
.page-header h1 { font-size: 22px; font-weight: 700; color: var(--gray-900); }
.breadcrumb { font-size: 13px; color: var(--gray-500); margin-top: 4px; }

/* --- 卡片 --- */
.card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  margin-bottom: 16px;
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gray-100);
}
.card-body { font-size: 14px; color: var(--gray-800); }

/* --- 表格 --- */
table { width: 100%; border-collapse: collapse; }
th {
  background: var(--gray-50);
  padding: 10px 12px;
  font-size: 12px;
  color: var(--gray-600);
  font-weight: 600;
  text-align: left;
  border-bottom: 2px solid var(--gray-200);
}
td {
  padding: 10px 12px;
  font-size: 13px;
  color: var(--gray-800);
  border-bottom: 1px solid var(--gray-100);
}
tr:hover td { background: var(--primary-bg); }

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  gap: 6px;
}
.btn-primary { background: var(--primary); color: var(--white); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-light); }
.btn-outline { background: var(--white); color: var(--gray-800); border-color: var(--gray-300); }
.btn-outline:hover { background: var(--gray-50); border-color: var(--gray-400); }
.btn-danger { background: var(--danger); color: var(--white); border-color: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: var(--radius-sm); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* --- 表单 --- */
.form-group { margin-bottom: 14px; }
.form-label { display: block; font-size: 13px; color: var(--gray-700); margin-bottom: 4px; font-weight: 500; }
.form-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--gray-900);
  transition: border-color var(--transition-fast);
  box-sizing: border-box;
}
.form-input:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 2px rgba(26,86,50,0.1); }
select.form-input { cursor: pointer; }
textarea.form-input { min-height: 80px; resize: vertical; }

/* --- 标签 --- */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
}
.tag-success { background: var(--primary-bg); color: var(--primary); }
.tag-danger { background: #ffebee; color: var(--danger); }
.tag-warning { background: #fff3e0; color: var(--warning); }
.tag-info { background: #e3f2fd; color: #1565c0; }

/* --- 空状态 --- */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--gray-500);
}
.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* --- 提示 --- */
.toast {
  position: fixed;
  top: 16px;
  right: 16px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--white);
  z-index: 9999;
  box-shadow: var(--shadow-md);
  animation: slideIn 0.3s ease;
}
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: var(--warning); }
.toast-info { background: #1565c0; }
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* --- 弹窗(modal) --- */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-200);
}
.modal-header h2 { font-size: 17px; font-weight: 600; color: var(--gray-900); }
.modal-close { font-size: 20px; cursor: pointer; color: var(--gray-500); line-height: 1; }
.modal-body { padding: 20px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid var(--gray-200);
}

/* --- 分页 --- */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 16px;
}
.pagination .page-btn {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-300);
  background: var(--white);
  cursor: pointer;
  font-size: 13px;
}
.pagination .page-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.pagination .page-btn:hover:not(.active) { background: var(--gray-50); }
.pagination .page-info { font-size: 13px; color: var(--gray-500); }

/* --- 实用工具 --- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }
.mt-sm { margin-top: 8px; }
.mt-md { margin-top: 16px; }
.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 16px; }