/* 电力交易平台控制台 — 样式 */
:root {
  --primary: #1a56db;
  --primary-light: #e1effe;
  --primary-dark: #1e429f;
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  --bg: #f0f4f8;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-secondary: #64748b;
  --sidebar-bg: #0f172a;
  --sidebar-text: #94a3b8;
  --sidebar-active: #1a56db;
  --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); }

/* 布局 */
.app { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--sidebar-bg); color: var(--sidebar-text); padding: 0; position: fixed; height: 100vh; overflow-y: auto; z-index: 10; }
.main { margin-left: 240px; flex: 1; padding: 24px; min-height: 100vh; }

/* 侧边栏 */
.sidebar-header { padding: 20px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.sidebar-header h2 { color: #fff; font-size: 16px; font-weight: 600; }
.sidebar-header p { font-size: 12px; margin-top: 4px; }
.nav-item { display: flex; align-items: center; padding: 12px 20px; cursor: pointer; transition: all 0.2s; border-left: 3px solid transparent; font-size: 14px; }
.nav-item:hover { background: rgba(255,255,255,0.05); color: #fff; }
.nav-item.active { background: rgba(26,86,219,0.2); color: #fff; border-left-color: var(--primary); }
.nav-item .icon { margin-right: 10px; font-size: 16px; width: 20px; text-align: center; }
.nav-section { padding: 12px 20px 6px; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: #475569; }

/* 卡片 */
.card { background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); padding: 20px; margin-bottom: 16px; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.card-header h3 { font-size: 16px; font-weight: 600; }
.card-header .badge { font-size: 12px; padding: 2px 8px; border-radius: 12px; background: var(--primary-light); color: var(--primary); }

/* 表格 */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { font-weight: 600; color: var(--text-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; background: #f8fafc; }
tr:hover { background: #f8fafc; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; padding: 8px 16px; border: none; border-radius: 6px; cursor: pointer; font-size: 13px; font-weight: 500; transition: all 0.2s; gap: 6px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { opacity: 0.9; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* 表单 */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; color: var(--text-secondary); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; transition: border-color 0.2s; outline: none; font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,86,219,0.1); }
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }

/* 弹窗 */
.modal-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.5); z-index: 100; justify-content: center; align-items: center; }
.modal-overlay.active { display: flex; }
.modal { background: var(--card); border-radius: 12px; padding: 24px; max-width: 640px; width: 90%; max-height: 90vh; overflow-y: auto; }
.modal h3 { margin-bottom: 16px; font-size: 18px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }

/* 状态标签 */
.status { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 500; }
.status-success { background: #dcfce7; color: #166534; }
.status-error { background: #fee2e2; color: #991b1b; }
.status-info { background: var(--primary-light); color: var(--primary); }

/* 统计卡片 */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stat-card .stat-value { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat-card .stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* 接口选择网格 */
.interface-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px; }
.interface-item { padding: 12px; border: 1px solid var(--border); border-radius: 6px; cursor: pointer; transition: all 0.2s; }
.interface-item:hover { border-color: var(--primary); background: var(--primary-light); }
.interface-item.selected { border-color: var(--primary); background: var(--primary-light); }
.interface-item .intf-name { font-weight: 600; font-size: 13px; }
.interface-item .intf-code { font-size: 11px; color: var(--text-secondary); font-family: monospace; }

/* 加载动画 */
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* JSON 查看器 */
.json-viewer { background: #1e293b; color: #e2e8f0; padding: 16px; border-radius: 6px; font-family: 'SF Mono', Monaco, monospace; font-size: 12px; max-height: 500px; overflow: auto; white-space: pre-wrap; word-break: break-all; }

/* 通知 */
.toast { position: fixed; top: 20px; right: 20px; padding: 12px 20px; border-radius: 8px; color: #fff; font-size: 14px; z-index: 200; transform: translateY(-20px); opacity: 0; transition: all 0.3s; }
.toast.show { transform: translateY(0); opacity: 1; }
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }

/* 页面标题 */
.page-title { font-size: 22px; font-weight: 700; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.page-title .subtitle { font-size: 14px; font-weight: 400; color: var(--text-secondary); }

/* 隐藏页面 */
.page { display: none; }
.page.active { display: block; }

/* 账号选择器 */
.account-selector { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.account-selector select { min-width: 300px; }

/* 分类标签 */
.category-tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.category-tab { padding: 6px 14px; border: 1px solid var(--border); border-radius: 20px; font-size: 13px; cursor: pointer; transition: all 0.2s; }
.category-tab:hover { border-color: var(--primary); }
.category-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 区域标签颜色 */
.region-tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 600; }
.region-辽宁 { background: #dbeafe; color: #1e40af; }
.region-山东 { background: #fef3c7; color: #92400e; }
.region-山西 { background: #dcfce7; color: #166534; }
.region-广东 { background: #fce7f3; color: #9d174d; }
.region-浙江 { background: #e0e7ff; color: #3730a3; }
.region-default { background: #f1f5f9; color: #475569; }

/* 响应式 */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar .nav-item span, .sidebar-header p, .nav-section { display: none; }
  .sidebar-header h2 { font-size: 12px; text-align: center; }
  .main { margin-left: 60px; padding: 16px; }
}