/* Alert Platform - Modern UI Styles */
:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --border-color: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-primary: #3b82f6;
  --accent-secondary: #8b5cf6;
  --accent-success: #22c55e;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-info: #06b6d4;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.3);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Navigation */
.app-nav {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, #0f172a 100%);
  padding: 0 32px;
  display: flex;
  align-items: center;
  height: 60px;
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-brand {
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 700;
  margin-right: 32px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-brand::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent-danger);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.nav-tab {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

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

.nav-tab.active {
  color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.1);
}

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

.app-header h1 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

.token-input {
  display: flex;
  align-items: center;
  gap: 12px;
}

.token-input input {
  padding: 10px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  width: 240px;
  transition: border-color 0.2s;
}

.token-input input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.token-input input::placeholder {
  color: var(--text-muted);
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 32px;
}

/* Overview Cards */
.overview-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.stat-card.total::before { background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary)); }
.stat-card.pending::before { background: var(--accent-warning); }
.stat-card.notified::before { background: var(--accent-info); }
.stat-card.acknowledged::before { background: var(--accent-secondary); }
.stat-card.resolved::before { background: var(--accent-success); }
.stat-card.failed::before { background: var(--accent-danger); }

.stat-card .count {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 4px;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card .label {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Filters */
.filters, .rules-toolbar {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  border: 1px solid var(--border-color);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.filter-group label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-group select,
.filter-group input {
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  min-width: 160px;
  transition: border-color 0.2s;
}

.filter-group select:focus,
.filter-group input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

/* Buttons */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #2563eb);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

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

.btn-secondary:hover {
  background: #475569;
}

.btn-success {
  background: linear-gradient(135deg, var(--accent-success), #16a34a);
  color: white;
}

.btn-warning {
  background: linear-gradient(135deg, var(--accent-warning), #d97706);
  color: white;
}

.btn-danger {
  background: linear-gradient(135deg, var(--accent-danger), #dc2626);
  color: white;
}

.btn-danger:hover {
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Chart Section */
.chart-section {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
  border: 1px solid var(--border-color);
}

.chart-section h3 {
  font-size: 16px;
  margin-bottom: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.chart-controls {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.chart-controls button {
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}

.chart-controls button:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
}

.chart-controls button.active {
  background: var(--accent-primary);
  color: white;
  border-color: var(--accent-primary);
}

.chart-container {
  position: relative;
  height: 280px;
}

/* Tables */
.event-table-section,
.rules-table-section,
.oncall-section {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.event-table-section h3,
.rules-table-section h3,
.section-header h2 {
  font-size: 16px;
  padding: 20px 24px;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  margin: 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.section-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sync-input {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  width: 140px;
}

.sync-input::placeholder {
  color: var(--text-muted);
}

.sync-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.sync-select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 13px;
  min-width: 160px;
  cursor: pointer;
}

.sync-select:focus {
  outline: none;
  border-color: var(--accent-primary);
}

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

thead th {
  background: var(--bg-primary);
  padding: 14px 20px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
}

tbody tr {
  transition: background 0.15s;
}

tbody tr:hover {
  background: var(--bg-hover);
}

tbody td {
  padding: 14px 20px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.actions-cell {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Level badges */
.level-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.level-P0 { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.level-P1 { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.level-P2 { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }
.level-P3 { background: rgba(6, 182, 212, 0.15); color: #22d3ee; }

/* Status badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.status-pending { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.status-notified { background: rgba(6, 182, 212, 0.15); color: #22d3ee; }
.status-acknowledged { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }
.status-resolved { background: rgba(34, 197, 94, 0.15); color: #4ade80; }
.status-notify_failed { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.status-deduplicated { background: rgba(148, 163, 184, 0.15); color: #94a3b8; }
.status-muted { background: rgba(148, 163, 184, 0.15); color: #94a3b8; }
.status-enabled { background: rgba(34, 197, 94, 0.15); color: #4ade80; }
.status-disabled { background: rgba(100, 116, 139, 0.15); color: #94a3b8; }

/* Event detail */
.event-detail {
  background: var(--bg-primary);
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.event-detail dl {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px 24px;
}

.event-detail dt {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.event-detail dd {
  font-size: 14px;
  color: var(--text-primary);
}

.event-detail .actions {
  margin-top: 16px;
  display: flex;
  gap: 10px;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px;
  border-top: 1px solid var(--border-color);
}

.pagination .page-info {
  font-size: 14px;
  color: var(--text-secondary);
}

/* On-Call Page */
.oncall-sections {
  display: grid;
  gap: 28px;
}

.oncall-section tbody tr.active-row {
  background: rgba(34, 197, 94, 0.08);
}

.oncall-section tbody code {
  background: var(--bg-primary);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--accent-info);
  font-family: 'SF Mono', Monaco, monospace;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  width: 560px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.modal.modal-sm {
  width: 440px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
  padding: 4px;
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* Form */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
}

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

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-group.has-error input,
.form-group.has-error select {
  border-color: var(--accent-danger);
}

.field-error {
  display: block;
  color: var(--accent-danger);
  font-size: 12px;
  margin-top: 6px;
}

.required {
  color: var(--accent-danger);
}

.form-row {
  display: flex;
  gap: 16px;
}

.form-row .form-group {
  flex: 1;
}

.form-divider {
  margin: 24px 0 16px;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--accent-primary);
}

.checkbox-label input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--accent-primary);
  margin: 0;
}

/* Mute presets */
.mute-presets {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.mute-presets .btn {
  min-width: 90px;
}

.mute-custom {
  margin-top: 16px;
}

.mute-custom label {
  display: block;
  font-size: 13px;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.mute-custom input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
}

/* Loading & Error */
.loading {
  text-align: center;
  padding: 60px;
  color: var(--text-secondary);
  font-size: 15px;
}

.error-msg {
  text-align: center;
  padding: 24px;
  color: var(--accent-danger);
  font-size: 14px;
  background: rgba(239, 68, 68, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

/* Responsive */
@media (max-width: 768px) {
  .filters, .rules-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .overview-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .app-nav {
    padding: 0 16px;
  }
  
  .nav-brand {
    margin-right: 16px;
  }
  
  .container {
    padding: 16px;
  }
  
  .form-row {
    flex-direction: column;
    gap: 0;
  }
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Oncall Tabs */
.oncall-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.oncall-tabs button {
  padding: 10px 20px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.oncall-tabs button:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.oncall-tabs button.active {
  background: var(--accent-primary);
  color: white;
}

/* Team Cards */
.team-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: 20px;
}

.team-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.team-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.team-card-header h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

.rotation-badge {
  font-size: 12px;
  padding: 4px 10px;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-secondary);
  border-radius: 12px;
}

.team-desc {
  padding: 12px 20px 0;
  color: var(--text-secondary);
  font-size: 13px;
  margin: 0;
}

.team-section {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
}

.team-section:last-of-type {
  border-bottom: none;
}

.team-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.team-section-header strong {
  font-size: 13px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.member-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.empty-hint {
  color: var(--text-muted);
  font-size: 13px;
}

.member-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.member-item.escalation {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.member-order {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-primary);
  color: white;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 600;
}

.member-item.escalation .member-order {
  background: var(--accent-warning);
}

.member-name {
  color: var(--text-primary);
}

.wait-minutes {
  font-size: 11px;
  color: var(--accent-warning);
  background: rgba(245, 158, 11, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Escalation person type badge (普通/仅兜底/永久兜底) */
.esc-type-badge {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
}

.esc-type-badge.regular {
  color: var(--text-muted);
  background: rgba(148, 163, 184, 0.15);
}

.esc-type-badge.fallback {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.15);
}

.esc-type-badge.permanent {
  color: #f87171;
  background: rgba(248, 113, 113, 0.18);
}

/* Permanent fallback persons stand out in the team escalation list */
.member-item.escalation.permanent {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.35);
}

.member-item.escalation.permanent .member-order {
  background: #f87171;
}

/* "(固定)" indicator on calendar permanent escalation entries */
.schedule-item.escalation.permanent {
  font-weight: 600;
}

.fixed-indicator {
  margin-left: 4px;
  font-size: 10px;
  color: #f87171;
}

.btn-edit {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0 4px;
  font-size: 13px;
}

.btn-edit:hover {
  color: var(--accent-primary);
}

.btn-remove {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0 4px;
  font-size: 16px;
  line-height: 1;
}

.btn-remove:hover {
  color: var(--accent-danger);
}

.team-card-footer {
  display: flex;
  gap: 8px;
  padding: 12px 20px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
}

/* Success message */
.success-msg {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--accent-success);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-bottom: 16px;
}

.batch-person-list {
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
}

.batch-person-item {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-color);
}

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

.batch-person-item:hover {
  background: var(--bg-hover);
}

.batch-person-name {
  margin-left: 8px;
}

.batch-order-section {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.batch-order-list {
  max-height: 200px;
  overflow-y: auto;
}

.batch-order-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.batch-order-num {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-primary);
  color: white;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 600;
}

/* Calendar */
.calendar-container {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

.calendar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.calendar-month {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.calendar-nav {
  display: flex;
  gap: 8px;
}

.calendar-nav button {
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}

.calendar-nav button:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.calendar-body {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}

.calendar-weekday {
  padding: 12px;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.calendar-day {
  min-height: 100px;
  padding: 8px;
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-card);
}

.calendar-day:nth-child(7n) {
  border-right: none;
}

.calendar-day.empty {
  background: var(--bg-primary);
}

.calendar-day.today {
  background: rgba(59, 130, 246, 0.15);
  border: 2px solid var(--accent-primary);
}

.day-number {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.calendar-day.today .day-number {
  color: var(--accent-primary);
  font-weight: 700;
  font-size: 18px;
}

.schedule-item {
  padding: 4px 8px;
  margin-bottom: 4px;
  border-radius: 4px;
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.schedule-item.primary {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-secondary);
}

.schedule-item.escalation {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-warning);
}

.calendar-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  padding: 16px 20px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.calendar-toolbar select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  min-width: 200px;
}

.calendar-toolbar .generate-section {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.calendar-toolbar input[type="number"] {
  width: 80px;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
}

.schedule-warnings {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.schedule-warning-item {
  background: rgba(230, 162, 60, 0.12);
  border: 1px solid rgba(230, 162, 60, 0.4);
  border-radius: 6px;
  padding: 10px 14px;
  color: #e6a23c;
  font-size: 13px;
  line-height: 1.5;
}


/* ==================== Overview Page Redesign ==================== */

.alert-banner {
  background: linear-gradient(135deg, rgba(239,68,68,0.18), rgba(239,68,68,0.08));
  border: 1px solid rgba(239,68,68,0.4);
  border-left: 4px solid var(--accent-danger);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.alert-banner .banner-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #fca5a5;
  font-weight: 500;
}

.alert-banner .banner-title strong {
  color: #f87171;
  font-size: 18px;
}

.alert-banner .banner-cta {
  background: rgba(239,68,68,0.15);
  border: 1px solid rgba(239,68,68,0.4);
  color: #fca5a5;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}

.alert-banner .banner-cta:hover {
  background: rgba(239,68,68,0.25);
  color: #fecaca;
}

/* Key metric cards (3 large cards for overview) */
.metric-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.metric-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  cursor: pointer;
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.metric-card .metric-icon {
  font-size: 24px;
  margin-bottom: 8px;
  opacity: 0.8;
}

.metric-card .metric-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.metric-card .metric-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 6px;
}

.metric-card .metric-hint {
  font-size: 12px;
  color: var(--text-muted);
}

.metric-card.danger .metric-value { color: #f87171; }
.metric-card.warning .metric-value { color: #fbbf24; }
.metric-card.info .metric-value { color: #22d3ee; }

/* Section layout with two columns (oncall + recent events) */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

@media (max-width: 960px) {
  .overview-grid { grid-template-columns: 1fr; }
}

.panel {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

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

.panel-header h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.panel-header .panel-link {
  font-size: 12px;
  color: var(--accent-primary);
  cursor: pointer;
  text-decoration: none;
}

.panel-header .panel-link:hover { text-decoration: underline; }

.panel-body {
  padding: 16px 20px;
}

.panel-body.no-pad { padding: 0; }

/* On-call list */
.oncall-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.oncall-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.oncall-list-item .team-name {
  color: var(--text-secondary);
  flex: 0 0 auto;
  max-width: 40%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.oncall-list-item .person-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-primary);
  font-weight: 500;
}

.oncall-list-item .person-badge::before {
  content: '👤';
  font-size: 12px;
}

.oncall-list-item.empty {
  color: var(--text-muted);
  justify-content: center;
  font-style: italic;
}

/* Recent events compact list */
.recent-events-list {
  display: flex;
  flex-direction: column;
}

.recent-event-item {
  display: grid;
  grid-template-columns: 50px 1fr 80px 140px;
  gap: 12px;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
}

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

.recent-event-item .event-title {
  color: var(--text-primary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recent-event-item .event-time {
  color: var(--text-muted);
  font-size: 12px;
  text-align: right;
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 14px;
}

.empty-state .empty-icon {
  font-size: 32px;
  margin-bottom: 12px;
  opacity: 0.5;
}

/* Onboarding checklist */
.onboarding-card {
  background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(139,92,246,0.05));
  border: 1px solid rgba(59,130,246,0.3);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.onboarding-card h3 {
  font-size: 16px;
  color: var(--text-primary);
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.onboarding-card .onboarding-desc {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 16px;
}

.onboarding-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.onboarding-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.onboarding-step .step-num {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-primary);
  color: white;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}

.onboarding-step.done .step-num {
  background: var(--accent-success);
}

.onboarding-step.done .step-text {
  color: var(--text-muted);
  text-decoration: line-through;
}

.onboarding-step .step-text {
  flex: 1;
  font-size: 14px;
  color: var(--text-primary);
}

.onboarding-step .btn {
  flex-shrink: 0;
}

/* ==================== Config Center Tabs ==================== */

.config-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding: 0 4px;
}

.config-tabs button {
  padding: 12px 20px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  margin-bottom: -1px;
}

.config-tabs button:hover {
  color: var(--text-primary);
}

.config-tabs button.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

/* ==================== Action Dropdown Menu ==================== */

.action-menu {
  position: relative;
  display: inline-block;
}

.action-menu-toggle {
  background: var(--bg-hover);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}

.action-menu-toggle:hover {
  background: #475569;
}

.action-menu-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  min-width: 140px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  z-index: 50;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.action-menu-dropdown button {
  background: transparent;
  border: none;
  color: var(--text-primary);
  padding: 8px 12px;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.15s;
  width: 100%;
}

.action-menu-dropdown button:hover {
  background: var(--bg-hover);
}

.action-menu-dropdown button.danger {
  color: #f87171;
}

.action-menu-dropdown button.danger:hover {
  background: rgba(239,68,68,0.15);
}

.action-menu-dropdown .divider {
  height: 1px;
  background: var(--border-color);
  margin: 4px 0;
}

/* ==================== Tooltip ==================== */

.tooltip-wrap {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  position: relative;
}

.tooltip-icon {
  width: 14px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-hover);
  color: var(--text-secondary);
  border-radius: 50%;
  font-size: 10px;
  font-style: normal;
  cursor: help;
  font-weight: 600;
}

.tooltip-wrap:hover .tooltip-text {
  opacity: 1;
  visibility: visible;
}

.tooltip-text {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: normal;
  white-space: nowrap;
  max-width: 300px;
  white-space: normal;
  width: 240px;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s;
  box-shadow: var(--shadow-md);
  line-height: 1.5;
}

/* Search input */
.search-input {
  padding: 10px 14px 10px 36px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  width: 260px;
  transition: border-color 0.2s;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.3-4.3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 12px center;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

/* Call records table */
.call-records-section {
  margin-top: 16px;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.call-records-section h4 {
  font-size: 13px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  font-weight: 600;
}

.call-record-item {
  display: grid;
  grid-template-columns: 120px 80px 100px 1fr 100px;
  gap: 12px;
  padding: 8px 12px;
  font-size: 13px;
  border-bottom: 1px solid var(--border-color);
  align-items: center;
}

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

.call-record-item .role-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  display: inline-block;
}

.call-record-item .role-badge.primary {
  background: rgba(139,92,246,0.15);
  color: #a78bfa;
}

.call-record-item .role-badge.escalation {
  background: rgba(245,158,11,0.15);
  color: #fbbf24;
}

.call-record-item .call-status {
  font-size: 12px;
}

.call-record-item .call-status.answered { color: #4ade80; }
.call-record-item .call-status.failed { color: #f87171; }
.call-record-item .call-status.pending { color: #94a3b8; }


/* ==================== Sidebar Layout ==================== */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar-brand {
  padding: 20px 20px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
}

.sidebar-nav .nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s;
  margin-bottom: 2px;
}

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

.sidebar-nav .nav-item.active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
}

.sidebar-nav .nav-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.sidebar-nav .nav-divider {
  height: 1px;
  background: var(--border-color);
  margin: 12px 8px;
}

.sidebar-nav .nav-group-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 8px 14px 4px;
}

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

.logout-btn {
  width: 100%;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}

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

.main-content {
  flex: 1;
  margin-left: 220px;
  min-height: 100vh;
  overflow-y: auto;
}

.page-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 20px 32px;
}

.page-header h1 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

/* Hide old top nav */
.app-nav { display: none !important; }

/* Oncall shared app sections */
.oncall-shared-app {
  display: none;
}

.oncall-page-section {
  display: none;
}

/* Search input */
.search-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.search-input::placeholder {
  color: var(--text-muted);
}

/* Call records */
.call-records-section {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

.call-records-section h4 {
  font-size: 14px;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.call-record-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 13px;
  border-bottom: 1px solid var(--border-color);
}

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

.role-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
}

.role-badge.primary { background: rgba(139,92,246,0.15); color: var(--accent-secondary); }
.role-badge.escalation { background: rgba(245,158,11,0.15); color: var(--accent-warning); }

@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar-brand { font-size: 0; padding: 16px; text-align: center; }
  .sidebar-brand::before { content: '📞'; font-size: 20px; }
  .sidebar-nav .nav-item span:not(.nav-icon) { display: none; }
  .sidebar-nav .nav-group-title { display: none; }
  .main-content { margin-left: 60px; }
}


/* Event detail table */
.detail-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 12px;
}

.detail-table td {
  padding: 8px 12px;
  font-size: 13px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: top;
}

.detail-table td.dt {
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  width: 80px;
}


/* Escalation countdown hint */
.escalation-hint {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-sm);
  color: #fbbf24;
  font-size: 13px;
}


/* Notify time tags */
.notify-times-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 32px;
  align-items: center;
}

.notify-time-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
  border-radius: 14px;
  font-size: 13px;
  font-weight: 500;
}

.notify-time-tag button {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0 2px;
}

.notify-time-tag button:hover {
  color: var(--accent-danger);
}

/* ==================== 三层升级链视图 ==================== */
/* 兜底配置区顶部的升级链说明条：主值班 → 轮转兜底 → 最终兜底 */
.escalation-chain-hint {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 14px;
  margin-bottom: 12px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-secondary);
}

.escalation-chain-hint .tier {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 12px;
  font-weight: 600;
}

.escalation-chain-hint .tier.t1 { color: #60a5fa; background: rgba(59,130,246,0.15); }
.escalation-chain-hint .tier.t2 { color: #fbbf24; background: rgba(245,158,11,0.15); }
.escalation-chain-hint .tier.t3 { color: #f87171; background: rgba(248,113,113,0.15); }
.escalation-chain-hint .arrow { color: var(--text-muted); font-weight: 700; }

/* 兜底分组小标题（轮转兜底 / 最终兜底） */
.esc-group-title {
  font-size: 12px;
  font-weight: 600;
  margin: 10px 0 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.esc-group-title.rotating { color: #fbbf24; }
.esc-group-title.final { color: #f87171; }
.esc-group-title .tier-tag {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 8px;
  background: var(--bg-hover);
  color: var(--text-muted);
  font-weight: 500;
}