:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #64748b;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border: #334155;
  --radius: 8px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

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

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

.container {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
  width: 260px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
}

.logo {
  padding: 24px;
  border-bottom: 1px solid var(--border);
}

.logo h1 {
  font-size: 18px;
  font-weight: 600;
}

.logo .version {
  font-size: 12px;
  color: var(--text-secondary);
}

.nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius);
  margin-bottom: 4px;
  transition: all 0.2s;
}

.nav-item:hover,
.nav-item.active {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item .icon {
  font-size: 18px;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.status-indicator .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-indicator .dot.online {
  background: var(--success);
}

.status-indicator .dot.offline {
  background: var(--danger);
}

/* 主内容区 */
.main {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.header h2 {
  font-size: 24px;
  font-weight: 600;
}

.content {
  flex: 1;
  padding: 24px 32px;
  overflow-y: auto;
}

/* 页面切换 */
.page {
  display: none;
}

.page.active {
  display: block;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  font-size: 32px;
}

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
}

/* 图表 */
.charts-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.chart-card canvas {
  height: 250px !important;
  max-height: 250px;
}

.chart-card h3 {
  margin-bottom: 16px;
  font-size: 16px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--border);
}

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

.btn-danger:hover {
  background: #dc2626;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* 表格 */
.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background: var(--bg-hover);
  font-weight: 600;
  font-size: 14px;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover {
  background: var(--bg-hover);
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.tag-blue {
  background: rgba(99, 102, 241, 0.2);
  color: #818cf8;
}

.tag-green {
  background: rgba(34, 197, 94, 0.2);
  color: #4ade80;
}

.tag-orange {
  background: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
}

/* 开关 */
.switch {
  position: relative;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: white;
  border-radius: 24px;
  transition: 0.3s;
}

.slider:before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: #64748b;
  border-radius: 50%;
  transition: 0.3s;
}

input:checked + .slider {
  background: var(--primary);
}

input:checked + .slider:before {
  transform: translateX(20px);
  background: white;
}

/* 进度条 */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-hover);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 0.3s;
}

/* 输入框 */
input[type="text"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 14px;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
}

/* Playground */
.playground-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  height: calc(100vh - 200px);
}

.playground-input,
.playground-output {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  overflow-y: auto;
}

.input-group {
  margin-bottom: 16px;
}

.input-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
}

#playground-model-search {
  margin-bottom: 6px;
}

.param-row {
  display: flex;
  gap: 20px;
  align-items: center;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.output-content {
  white-space: pre-wrap;
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 14px;
  line-height: 1.8;
}

.output-content .placeholder {
  color: var(--text-secondary);
  text-align: center;
  padding: 40px;
}

/* 配额列表 */
.quota-list {
  display: grid;
  gap: 12px;
}

.quota-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.quota-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.quota-model {
  font-weight: 500;
}

.quota-remaining {
  font-size: 14px;
  color: var(--text-secondary);
}

/* 路由规则 */
.routes-list {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.route-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.route-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* 缓存 */
.cache-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

/* 日志 */
.filter-group {
  display: flex;
  gap: 12px;
}

.filter-group input {
  width: auto;
}

.logs-list {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.log-item {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
}

.log-item:hover {
  background: var(--bg-hover, rgba(0,0,0,0.04));
}

.log-item:last-child {
  border-bottom: none;
}

.log-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.log-model {
  font-weight: 500;
}

.log-time {
  font-size: 12px;
  color: var(--text-secondary);
}

.log-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* 设置 */
.settings-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.settings-section h3 {
  margin-bottom: 16px;
}

/* 弹窗 */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.open {
  display: flex;
}

.modal-box {
  background: var(--bg-card);
  border-radius: var(--radius);
  width: 90%;
  max-width: 800px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-secondary);
  line-height: 1;
  padding: 0 4px;
}

.modal-body {
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

/* 表单样式 */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-input {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus {
  border-color: var(--primary);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.checkbox-group label,
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  cursor: pointer;
}

.modal-body pre {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  font-size: 12px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  margin: 0;
}

/* 响应式 */
@media (max-width: 1200px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .charts-row {
    grid-template-columns: 1fr;
  }
  
  .playground-container {
    grid-template-columns: 1fr;
    height: auto;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 100%;
    position: relative;
    height: auto;
  }
  
  .main {
    margin-left: 0;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
}