:root {
  --bg-app: #f4f7f9;
  --bg-surface: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #10b981;
  --success-bg: #d1fae5;
  --warning: #f59e0b;
  --warning-bg: #fef3c7;
  --danger: #ef4444;
  --danger-bg: #fee2e2;
  --border: #e2e8f0;
  --sidebar-w: 260px;
  --header-h: 70px;
  --font-family: 'Inter', sans-serif;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  font-size: 14px;
}

/* Layout */
.app-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 10;
}

.sidebar-header {
  height: var(--header-h);
  display: flex;
  align-items: center;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--primary);
  font-weight: 700;
  font-size: 18px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  cursor: pointer;
}

.nav-item:hover {
  background-color: #f1f5f9;
  color: var(--text-main);
}

.nav-item.active {
  background-color: #eff6ff;
  color: var(--primary);
}

.nav-item.active i {
  color: var(--primary);
}

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

.user-card {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #e2e8f0;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

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

.user-name {
  font-weight: 600;
  font-size: 14px;
}

.user-role {
  font-size: 12px;
  color: var(--text-muted);
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Header */
.top-header {
  height: var(--header-h);
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  z-index: 5;
}

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

.select-input {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background-color: #f8fafc;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  outline: none;
  cursor: pointer;
}

.select-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px #bfdbfe;
}

.date-display {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  padding-right: 16px;
  border-right: 1px solid var(--border);
}

.icon-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  position: relative;
}

.icon-btn:hover {
  background-color: #f1f5f9;
  color: var(--text-main);
}

.badge {
  position: absolute;
  top: 4px;
  right: 4px;
  background-color: var(--danger);
  color: white;
  font-size: 10px;
  font-weight: bold;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg-surface);
}

.d-mobile {
  display: none;
}

/* Page Content */
.page-content {
  flex: 1;
  overflow-y: auto;
  padding: 32px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 24px;
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
}

.page-subtitle {
  color: var(--text-muted);
  margin-top: 4px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  font-family: inherit;
}

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

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

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--border);
  color: var(--text-main);
}

.btn-outline:hover {
  background-color: #f8fafc;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 24px;
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

/* Cards */
.card {
  background-color: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
}

/* KPI Cards */
.kpi-card {
  padding: 20px;
}

.kpi-title {
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
}

.kpi-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.kpi-trend {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 500;
}

.trend-up { color: var(--success); }
.trend-down { color: var(--danger); }
.trend-neutral { color: var(--warning); }

/* Tables */
.table-container {
  overflow-x: auto;
}

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

th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-main);
}

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

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

.badge-success { background-color: var(--success-bg); color: #065f46; }
.badge-warning { background-color: var(--warning-bg); color: #92400e; }
.badge-danger { background-color: var(--danger-bg); color: #991b1b; }

/* Charts */
.chart-container {
  position: relative;
  height: 300px;
  width: 100%;
}

.chart-container-sm {
  height: 200px;
}

/* Alert panels */
.alert-panel {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.alert-danger {
  background-color: var(--danger-bg);
  border: 1px solid #fca5a5;
}

.alert-danger .alert-icon {
  color: var(--danger);
}

.alert-warning {
  background-color: var(--warning-bg);
  border: 1px solid #fcd34d;
}

.alert-warning .alert-icon {
  color: var(--warning);
}

.alert-content h4 {
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}

.alert-content p {
  font-size: 14px;
  color: var(--text-muted);
}

/* Specific custom designs */
.health-gauge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 0;
}
.health-score {
  font-size: 64px;
  font-weight: 700;
  color: var(--success);
  line-height: 1;
}

.progress-bar-container {
  width: 100%;
  height: 8px;
  background-color: #e2e8f0;
  border-radius: 4px;
  overflow: hidden;
  margin-top: 8px;
}

.progress-bar {
  height: 100%;
  border-radius: 4px;
}

/* Utility */
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.text-right { text-align: right; }
.font-bold { font-weight: 600; }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }

/* List */
.action-list {
  list-style: none;
}
.action-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.action-list li:last-child {
  border-bottom: none;
}
.action-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.action-icon.danger { background: var(--danger-bg); color: var(--danger); }
.action-icon.warning { background: var(--warning-bg); color: var(--warning); }
.action-icon.success { background: var(--success-bg); color: var(--success); }

.action-content {
  flex: 1;
}
.action-title {
  font-weight: 600;
  margin-bottom: 4px;
}
.action-desc {
  font-size: 13px;
  color: var(--text-muted);
}