/* ============================================
   Agent Pipeline Engine Monitor v2
   基于 APE 全量上下文真实架构
   深色科技主题
   ============================================ */

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: #0f172a;
  --bg-hover: #1e293b;
  --border-color: #1e293b;
  --border-glow: rgba(0, 212, 255, 0.15);

  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-blue: #00d4ff;
  --accent-green: #00ff88;
  --accent-yellow: #f59e0b;
  --accent-red: #ef4444;
  --accent-purple: #a855f7;
  --accent-orange: #f97316;

  --sidebar-width: 220px;
  --header-height: 56px;
  --radius: 8px;

  --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.08);
}

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

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow: hidden;
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }

/* ========== 布局框架 ========== */
.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* ========== 侧边栏 ========== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 100;
}

.sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-bottom: 1px solid var(--border-color);
  gap: 10px;
}

.sidebar-logo {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.sidebar-title { font-size: 15px; font-weight: 600; }
.sidebar-version { font-size: 10px; color: var(--text-muted); margin-left: auto; background: var(--bg-hover); padding: 2px 6px; border-radius: 4px; }

.sidebar-nav { flex: 1; padding: 12px 8px; overflow-y: auto; }
.nav-group { margin-bottom: 8px; }
.nav-group-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; padding: 8px 12px 4px; font-weight: 500; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 2px;
  text-decoration: none;
  position: relative;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: rgba(0, 212, 255, 0.08); color: var(--accent-blue); }
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 50%; transform: translateY(-50%);
  width: 3px; height: 18px;
  background: var(--accent-blue);
  border-radius: 0 2px 2px 0;
}
.nav-icon { width: 18px; height: 18px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.nav-badge { margin-left: auto; background: var(--accent-red); color: #fff; font-size: 10px; padding: 1px 6px; border-radius: 10px; min-width: 18px; text-align: center; }

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* ========== 主内容区 ========== */
.main-content { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--bg-primary); }

.top-header {
  height: var(--header-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 50;
}

.header-left { display: flex; align-items: center; gap: 16px; }
.breadcrumb { display: flex; align-items: center; gap: 6px; color: var(--text-secondary); font-size: 13px; }

.header-right { display: flex; align-items: center; gap: 16px; }

.header-stat {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}
.header-stat-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

.header-time {
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 13px;
  color: var(--accent-blue);
  letter-spacing: 0.5px;
}

.header-icon-btn {
  width: 32px; height: 32px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); cursor: pointer; transition: all 0.2s;
  position: relative;
}
.header-icon-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.header-icon-btn .badge { position: absolute; top: 2px; right: 2px; width: 7px; height: 7px; background: var(--accent-red); border-radius: 50%; }

/* ========== 页面内容 ========== */
.page-content { flex: 1; overflow-y: auto; padding: 20px; }
.page-header { margin-bottom: 20px; }
.page-title { font-size: 20px; font-weight: 600; margin-bottom: 4px; }
.page-subtitle { font-size: 13px; color: var(--text-secondary); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.card:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); }

.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.card-title { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.card-title-icon { width: 4px; height: 14px; background: var(--accent-blue); border-radius: 2px; }
.card-actions { display: flex; gap: 8px; align-items: center; }
.card-action-btn { font-size: 12px; color: var(--text-muted); cursor: pointer; padding: 4px 8px; border-radius: 4px; transition: all 0.2s; }
.card-action-btn:hover { color: var(--accent-blue); background: rgba(0, 212, 255, 0.08); }

/* ========== KPI 卡片 ========== */
.kpi-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; margin-bottom: 20px; }

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px;
  position: relative;
  overflow: hidden;
}
.kpi-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
  opacity: 0.5;
}
.kpi-card.status-good::before { background: linear-gradient(90deg, transparent, var(--accent-green), transparent); }
.kpi-card.status-warn::before { background: linear-gradient(90deg, transparent, var(--accent-yellow), transparent); }
.kpi-card.status-error::before { background: linear-gradient(90deg, transparent, var(--accent-red), transparent); }

.kpi-label { font-size: 12px; color: var(--text-muted); margin-bottom: 6px; }
.kpi-value { font-size: 24px; font-weight: 700; font-family: 'SF Mono', Monaco, monospace; margin-bottom: 6px; }
.kpi-change { font-size: 11px; display: flex; align-items: center; gap: 4px; }
.kpi-change.up { color: var(--accent-green); }
.kpi-change.down { color: var(--accent-red); }
.kpi-change.neutral { color: var(--text-muted); }

/* ========== 状态标签 ========== */
.status-tag {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; padding: 2px 8px; border-radius: 4px; font-weight: 500;
}
.status-tag::before { content: ''; width: 6px; height: 6px; border-radius: 50%; }

.status-online { background: rgba(0, 255, 136, 0.1); color: var(--accent-green); }
.status-online::before { background: var(--accent-green); }

.status-offline { background: rgba(239, 68, 68, 0.1); color: var(--accent-red); }
.status-offline::before { background: var(--accent-red); }

.status-busy { background: rgba(0, 212, 255, 0.1); color: var(--accent-blue); }
.status-busy::before { background: var(--accent-blue); }

.status-warn { background: rgba(245, 158, 11, 0.1); color: var(--accent-yellow); }
.status-warn::before { background: var(--accent-yellow); }

.status-idle { background: rgba(100, 116, 139, 0.1); color: var(--text-muted); }
.status-idle::before { background: var(--text-muted); }

/* ========== 表格 ========== */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
  text-align: left; padding: 10px 12px; color: var(--text-muted);
  font-weight: 500; font-size: 12px; border-bottom: 1px solid var(--border-color); white-space: nowrap;
}
.data-table td { padding: 10px 12px; color: var(--text-secondary); border-bottom: 1px solid var(--border-color); }
.data-table tr:hover td { background: var(--bg-hover); color: var(--text-primary); }
.data-table tr:last-child td { border-bottom: none; }

/* ========== 日志列表 ========== */
.log-list { font-family: 'SF Mono', Monaco, monospace; font-size: 12px; line-height: 1.6; }
.log-item { padding: 6px 0; border-bottom: 1px solid var(--border-color); display: flex; gap: 12px; }
.log-item:last-child { border-bottom: none; }
.log-time { color: var(--text-muted); white-space: nowrap; flex-shrink: 0; }
.log-level { width: 36px; text-align: center; font-size: 10px; padding: 1px 4px; border-radius: 3px; flex-shrink: 0; font-weight: 600; }
.log-level.info { background: rgba(0, 212, 255, 0.1); color: var(--accent-blue); }
.log-level.warn { background: rgba(245, 158, 11, 0.1); color: var(--accent-yellow); }
.log-level.error { background: rgba(239, 68, 68, 0.1); color: var(--accent-red); }
.log-level.success { background: rgba(0, 255, 136, 0.1); color: var(--accent-green); }
.log-msg { color: var(--text-secondary); flex: 1; }

/* ========== 响应式 ========== */
@media (max-width: 1400px) { .kpi-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) {
  .sidebar { width: 64px; }
  .sidebar-title, .nav-item span, .nav-group-label, .sidebar-version { display: none; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeIn 0.4s ease forwards; }

.page-section { display: none; }
.page-section.active { display: block; animation: fadeIn 0.3s ease; }

/* ========== 状态机可视化 ========== */
.state-machine-container { overflow-x: auto; padding: 10px 0; }
.state-machine {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: max-content;
  padding: 16px;
}
.state-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  min-width: 90px;
  transition: all 0.3s;
  position: relative;
}
.state-node.active {
  border-color: var(--accent-blue);
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
  background: rgba(0, 212, 255, 0.05);
}
.state-node.done { border-color: var(--accent-green); }
.state-node.error { border-color: var(--accent-red); background: rgba(239, 68, 68, 0.05); }
.state-node.human { border-color: var(--accent-purple); }

.state-node-name { font-size: 12px; font-weight: 600; color: var(--text-primary); }
.state-node-desc { font-size: 10px; color: var(--text-muted); }

.state-arrow {
  width: 28px;
  height: 2px;
  background: var(--border-color);
  position: relative;
  flex-shrink: 0;
}
.state-arrow.active { background: linear-gradient(90deg, var(--accent-green), var(--accent-blue)); }
.state-arrow::after {
  content: '';
  position: absolute; right: -3px; top: -3px;
  width: 0; height: 0;
  border-left: 6px solid var(--border-color);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}
.state-arrow.active::after { border-left-color: var(--accent-blue); }

/* 证据门禁标记 */
.gate-marker {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: #000;
  font-weight: 700;
}
.gate-marker.failed { background: var(--accent-red); color: #fff; }

/* 降级链可视化 */
.degradation-chain {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 16px;
}
.degrade-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  min-width: 100px;
}
.degrade-step.active { border-color: var(--accent-yellow); background: rgba(245, 158, 11, 0.05); }
.degrade-step.triggered { border-color: var(--accent-red); background: rgba(239, 68, 68, 0.05); }
.degrade-step-name { font-size: 12px; font-weight: 600; }
.degrade-step-detail { font-size: 10px; color: var(--text-muted); }
.degrade-arrow { width: 40px; height: 2px; background: var(--border-color); position: relative; }
.degrade-arrow.active { background: linear-gradient(90deg, var(--accent-yellow), var(--accent-red)); }

/* Agent PULL 模型拓扑 */
.topology-container { height: 440px; position: relative; }

/* 告警 */
.alert-item { display: flex; align-items: flex-start; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border-color); }
.alert-item:last-child { border-bottom: none; }
.alert-icon { width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; flex-shrink: 0; }
.alert-icon.critical { background: rgba(239, 68, 68, 0.1); color: var(--accent-red); }
.alert-icon.warning { background: rgba(245, 158, 11, 0.1); color: var(--accent-yellow); }
.alert-icon.info { background: rgba(0, 212, 255, 0.1); color: var(--accent-blue); }
.alert-content { flex: 1; }
.alert-title { font-size: 13px; color: var(--text-primary); margin-bottom: 2px; }
.alert-desc { font-size: 11px; color: var(--text-muted); }
.alert-time { font-size: 11px; color: var(--text-muted); white-space: nowrap; }

/* Pipeline 列表 */
.pipeline-row {
  display: grid;
  grid-template-columns: 60px 1fr 120px 100px 120px 80px;
  gap: 12px; align-items: center;
  padding: 12px; border-bottom: 1px solid var(--border-color);
  transition: background 0.2s;
}
.pipeline-row:hover { background: var(--bg-hover); }
.pipeline-row.header { font-size: 11px; color: var(--text-muted); font-weight: 500; border-bottom: 2px solid var(--border-color); }

/* 节点卡片 */
.node-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.node-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 16px; transition: all 0.2s; }
.node-card:hover { border-color: var(--border-glow); box-shadow: var(--shadow-glow); }
.node-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.node-name { font-size: 14px; font-weight: 600; }
.node-role { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.node-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
.node-metric { background: var(--bg-secondary); padding: 8px 10px; border-radius: 6px; }
.node-metric-label { font-size: 10px; color: var(--text-muted); margin-bottom: 2px; }
.node-metric-value { font-size: 14px; font-weight: 600; font-family: monospace; }

/* 队列 */
.queue-stats { display: flex; gap: 20px; margin-bottom: 16px; }
.queue-stat-item { text-align: center; }
.queue-stat-value { font-size: 28px; font-weight: 700; font-family: monospace; }
.queue-stat-label { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* Gate 面板 */
.gate-panel { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.gate-item { background: var(--bg-secondary); border-radius: 8px; padding: 14px; text-align: center; border: 1px solid transparent; transition: all 0.2s; }
.gate-item.passed { border-color: rgba(0, 255, 136, 0.2); background: rgba(0, 255, 136, 0.03); }
.gate-item.failed { border-color: rgba(239, 68, 68, 0.2); background: rgba(239, 68, 68, 0.03); }
.gate-item-name { font-size: 11px; color: var(--text-muted); margin-bottom: 6px; }
.gate-item-value { font-size: 20px; font-weight: 700; font-family: monospace; }
.gate-item.passed .gate-item-value { color: var(--accent-green); }
.gate-item.failed .gate-item-value { color: var(--accent-red); }

/* 图表容器 */
.chart-container { width: 100%; height: 300px; }
.mini-chart { width: 100%; height: 120px; }

/* ========== v0.2 前端精简新增 ========== */
/* 五站接力图呼吸动画（原 pipeline 页引用但未定义，v0.2 补上） */
@keyframes breathe { 0%,100% { transform: scale(1); } 50% { transform: scale(1.06); } }

/* 运行日志页 · 告警统计卡 */
.alert-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.alert-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 14px;
  text-align: center;
}
.alert-stat-value { font-size: 26px; font-weight: 700; font-family: 'SF Mono', Monaco, monospace; }
.alert-stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ALERT 日志整行标红（固化色值：红底 rgba(217,48,37,0.22) + 左条 #d93025 + 文字 #ff7b72） */
.log-item.alert {
  background: rgba(217, 48, 37, 0.22);
  border-left: 3px solid #d93025;
  padding-left: 9px;
  border-radius: 3px;
}
.log-item.alert .log-msg { color: #ff7b72; font-weight: 600; }
.log-item.alert .log-time { color: #ff9c92; }
.log-item.alert .log-level.error { background: #d93025; color: #fff; }