/* WDCC2025 Dashboard 样式 */
:root {
  --primary-color: #2563eb;
  --secondary-color: #64748b;
  --success-color: #059669;
  --warning-color: #d97706;
  --danger-color: #dc2626;
  --info-color: #0284c7;
  --light-bg: #f8fafc;
  --dark-text: #1e293b;
  --border-color: #e2e8f0;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--light-bg);
  color: var(--dark-text);
  line-height: 1.6;
}

/* 布局容器 */
.dashboard-container {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
  width: 250px;
  background: white;
  border-right: 1px solid var(--border-color);
  box-shadow: var(--shadow);
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  text-align: center;
}

.sidebar-header h1 {
  color: var(--primary-color);
  font-size: 1.5rem;
  font-weight: 600;
}

.sidebar-subtitle {
  color: var(--secondary-color);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.sidebar-nav {
  padding: 1rem 0;
}

.nav-item {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--secondary-color);
  text-decoration: none;
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
}

.nav-item:hover, .nav-item.active {
  background-color: #f1f5f9;
  color: var(--primary-color);
  border-left-color: var(--primary-color);
}

.nav-item i {
  margin-right: 0.75rem;
  width: 20px;
}

/* 主内容区 */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* 顶部栏 */
.top-bar {
  background: white;
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: between;
  align-items: center;
  box-shadow: var(--shadow);
}

.page-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--dark-text);
}

.top-bar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

.btn-success {
  background: var(--success-color);
  color: white;
  border-color: var(--success-color);
}

.btn-warning {
  background: var(--warning-color);
  color: white;
  border-color: var(--warning-color);
}

.btn-danger {
  background: var(--danger-color);
  color: white;
  border-color: var(--danger-color);
}

.btn i {
  margin-right: 0.5rem;
}

/* 内容页面 */
.content-page {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
}

/* 卡片组件 */
.card {
  background: white;
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background-color: #f8fafc;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--dark-text);
}

.card-body {
  padding: 1.5rem;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: white;
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  text-align: center;
}

.stat-card.primary { border-left: 4px solid var(--primary-color); }
.stat-card.success { border-left: 4px solid var(--success-color); }
.stat-card.warning { border-left: 4px solid var(--warning-color); }
.stat-card.info { border-left: 4px solid var(--info-color); }

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--secondary-color);
  font-size: 0.875rem;
  font-weight: 500;
}

.stat-change {
  font-size: 0.75rem;
  margin-top: 0.5rem;
}

.stat-change.positive { color: var(--success-color); }
.stat-change.negative { color: var(--danger-color); }

/* 表格 */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  background-color: #f8fafc;
  font-weight: 600;
  color: var(--secondary-color);
  font-size: 0.875rem;
}

.table tbody tr:hover {
  background-color: #f8fafc;
}

/* 进度条 */
.progress {
  width: 100%;
  height: 0.5rem;
  background-color: #e2e8f0;
  border-radius: 0.25rem;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.progress-bar.success { background-color: var(--success-color); }
.progress-bar.warning { background-color: var(--warning-color); }
.progress-bar.danger { background-color: var(--danger-color); }

/* 表单 */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--dark-text);
}

.form-control {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  transition: border-color 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* 模态框 */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: white;
  border-radius: 0.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  width: 90%;
  max-width: 500px;
  max-height: 90%;
  overflow-y: auto;
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--dark-text);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--secondary-color);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* 状态标签 */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 0.25rem;
}

.badge.primary { background: #dbeafe; color: var(--primary-color); }
.badge.success { background: #d1fae5; color: var(--success-color); }
.badge.warning { background: #fef3c7; color: var(--warning-color); }
.badge.danger { background: #fee2e2; color: var(--danger-color); }

/* 加载状态 */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .dashboard-container {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
    order: 2;
  }
  
  .main-content {
    order: 1;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .content-page {
    padding: 1rem;
  }
  
  .top-bar {
    padding: 1rem;
  }
  
  .table {
    font-size: 0.875rem;
  }
}

/* 实时数据更新动画 */
.update-flash {
  animation: flash 0.3s ease;
}

@keyframes flash {
  0% { background-color: #fef3c7; }
  100% { background-color: transparent; }
}

/* 成功/错误消息 */
.alert {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border-radius: 0.375rem;
  border: 1px solid transparent;
}

.alert.success {
  background-color: #d1fae5;
  border-color: #a7f3d0;
  color: #065f46;
}

.alert.error {
  background-color: #fee2e2;
  border-color: #fca5a5;
  color: #991b1b;
}

.alert.warning {
  background-color: #fef3c7;
  border-color: #fcd34d;
  color: #92400e;
}

/* 图表容器 */
.chart-container {
  position: relative;
  height: 300px;
  margin: 1rem 0;
}

/* 工具提示 */
.tooltip {
  position: relative;
  cursor: help;
}

.tooltip:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--dark-text);
  color: white;
  padding: 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.875rem;
  white-space: nowrap;
  z-index: 100;
}

/* 登录页面特殊样式 */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
  background: white;
  padding: 2rem;
  border-radius: 0.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--dark-text);
  margin-bottom: 0.5rem;
}

.login-subtitle {
  color: var(--secondary-color);
  font-size: 0.875rem;
}