/* =============================================
   CSS Variables
   ============================================= */
:root {
  --color-primary: #409eff;
  --color-success: #67c23a;
  --color-warning: #e6a23c;
  --color-danger: #f56c6c;
  --color-info: #909399;
  --bg-page: #f5f5f5;
  --bg-card: #ffffff;
  --bg-sidebar: #304156;
  --text-primary: #303133;
  --text-regular: #606266;
  --text-secondary: #909399;
  --border-color: #e4e7ed;
  --shadow: 0 2px 12px rgba(0,0,0,.1);
  --radius: 4px;
  --topbar-height: 60px;
  --sidebar-width: 220px;
}

/* =============================================
   Reset
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-page);
  overflow: hidden;
  height: 100vh;
}

/* =============================================
   App Layout
   ============================================= */
.app-container { display: flex; flex-direction: column; height: 100vh; }
.app-body { display: flex; flex: 1; overflow: hidden; }

/* =============================================
   Top Navigation
   ============================================= */
.topbar {
  height: var(--topbar-height);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-shrink: 0;
  z-index: 100;
}
.topbar-title { font-size: 18px; font-weight: 600; color: var(--color-primary); }
.topbar-user { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-regular); }
.topbar-user .avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--color-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600;
}

/* =============================================
   Sidebar / Left Menu
   ============================================= */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  overflow-y: auto;
  flex-shrink: 0;
  transition: width .3s;
}
.sidebar.collapsed { width: 64px; }
.menu-item { list-style: none; }
.menu-item .menu-title {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0;
  color: #bfcbd9;
  cursor: pointer;
  user-select: none;
  font-size: 14px;
}
.menu-item .menu-title-content {
  display: flex; align-items: center;
  flex: 1;
  padding: 12px 16px;
}
.menu-item .menu-title:hover .menu-title-content { background: #263445; color: #fff; }
.menu-item.active > .menu-title .menu-title-content { color: #fff; background: var(--color-primary); }
.menu-item .submenu { display: none; background: #1f2d3d; }
.menu-item.open > .submenu { display: block; }
.menu-item .submenu-item {
  display: flex;
  justify-content: flex-start;
  padding: 10px 16px 10px 40px;
  color: #bfcbd9;
  cursor: pointer;
  font-size: 13px;
  text-decoration: none;
}
.menu-item .submenu-item:hover { color: #fff; }
.menu-item .submenu-item.active { color: var(--color-primary); }
.menu-item .arrow { transition: transform .3s; font-size: 10px; }
.menu-item.open > .menu-title .arrow { transform: rotate(90deg); }
.menu-icon { margin-right: 8px; width: 16px; text-align: center; }

/* =============================================
   Main Content Area
   ============================================= */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  background: var(--bg-page);
}

/* =============================================
   Page Block
   ============================================= */
.page-block {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.page-block-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

/* =============================================
   Filter Bar
   ============================================= */
.filter-bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 16px; }
.filter-item { display: flex; align-items: center; gap: 6px; }
.filter-item label { font-size: 13px; color: var(--text-regular); white-space: nowrap; }
.filter-item input[type="text"],
.filter-item select {
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 13px;
  outline: none;
  background: #fff;
}
.filter-item input[type="text"]:focus,
.filter-item select:focus { border-color: var(--color-primary); }
.btn-search {
  height: 32px; padding: 0 16px;
  background: var(--color-primary); color: #fff;
  border: none; border-radius: var(--radius);
  cursor: pointer; font-size: 13px;
}
.btn-search:hover { opacity: .9; }

/* =============================================
   Toolbar / Action Buttons
   ============================================= */
.page-toolbar { margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.result-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.btn {
  height: 32px; padding: 0 16px;
  border-radius: var(--radius); cursor: pointer;
  font-size: 13px; border: 1px solid var(--border-color);
  background: #fff; color: var(--text-regular);
  display: inline-flex; align-items: center; gap: 4px;
}
.btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover { opacity: .9; }
.btn-danger { color: var(--color-danger); border-color: var(--color-danger); }
.btn-danger:hover { background: var(--color-danger); color: #fff; }

/* =============================================
   Data Table
   ============================================= */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}
.data-table th {
  background: #fafafa;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.data-table tr:hover td { background: #f5f7fa; }
.data-table .actions-cell { display: flex; gap: 6px; flex-wrap: wrap; }
.data-table .action-btn {
  font-size: 12px; padding: 2px 8px;
  border-radius: 3px; cursor: pointer;
  border: 1px solid var(--border-color);
  background: #fff; color: var(--text-regular);
}
.data-table .action-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.badge {
  display: inline-block; padding: 2px 8px;
  border-radius: 10px; font-size: 12px;
}
.badge-enable { background: #f0f9eb; color: #67c23a; }
.badge-disable { background: #f4f4f5; color: #909399; }

/* =============================================
   Pagination
   ============================================= */
.pagination { display: flex; justify-content: flex-end; align-items: center; gap: 6px; margin-top: 16px; }
.pagination button, .pagination span {
  height: 32px; padding: 0 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: #fff; color: var(--text-regular);
  cursor: pointer; font-size: 13px;
  display: inline-flex; align-items: center;
}
.pagination .active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.pagination .disabled { opacity: .5; cursor: not-allowed; }

/* =============================================
   Modal
   ============================================= */
.modals-container {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  z-index: 1000;
  pointer-events: none;
  background: rgba(0,0,0,.5);
  display: none;
}
.modals-container.visible { display: block; pointer-events: auto; }

.modal-box {
  position: fixed;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,.2);
  display: flex; flex-direction: column;
  min-width: 600px; min-height: 400px;
  max-width: 90vw; max-height: 80vh;
  pointer-events: auto;
  left: 0; top: 0;
}
.modal-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: space-between;
  cursor: grab; user-select: none;
  flex-shrink: 0;
}
.modal-header:active { cursor: grabbing; }
.modal-title { font-size: 15px; font-weight: 600; }
.modal-controls { display: flex; gap: 4px; }
.modal-ctrl-btn {
  width: 28px; height: 28px;
  border: none; background: transparent;
  cursor: pointer; border-radius: 3px;
  font-size: 14px; color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
}
.modal-ctrl-btn:hover { background: #f5f5f5; color: var(--text-primary); }
.modal-body { flex: 1; overflow-y: auto; padding: 16px; min-height: 0; }
.modal-maximized .modal-body { max-height: calc(100vh - 60px); }

/* =============================================
   Scrollbar
   ============================================= */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #dcdfe6; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #c0c4cc; }

/* =============================================
   Edit Config Button
   ============================================= */
.btn-edit-config {
  background: #f5f7fa;
  color: #606266;
  border: 1px solid #dcdfe6;
}
.btn-edit-config:hover {
  background: #ecf5ff;
  color: #409eff;
  border-color: #b3d8ff;
}