/* ============================================
   PROFESSIONAL CHARTS STYLES
   ApexCharts & Dashboard Analytics
   ============================================ */

/* ============================================
   CSS Variables
   ============================================ */
:root {
  --chart-primary: #136a6a; /* Darkened for accessibility */
  --chart-secondary: #0d425b;
  --chart-tertiary: #4338ca;
  --chart-success: #047857;
  --chart-warning: #b45309;
  --chart-danger: #b91c1c;
  --chart-info: #3b82f6;
  --chart-purple: #8b5cf6;
  --chart-pink: #ec4899;
  --chart-orange: #f97316;

  --chart-gradient-start: #218d8d;
  --chart-gradient-end: #1d5474;

  --chart-bg: #ffffff;
  --chart-border: #e2e8f0;
  --chart-text: #133452;
  --chart-text-muted: #64748b;
  --chart-grid: #f1f5f9;
}

/* ============================================
   Analytics Dashboard Container
   ============================================ */
.analytics-dashboard {
  padding: 24px;
  background: #f8fafc;
  min-height: calc(100vh - 70px);
}

.analytics-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.analytics-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.analytics-title h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--chart-text);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.analytics-title h1 .icon {
  font-size: 32px;
}

.analytics-title p {
  font-size: 14px;
  color: var(--chart-text-muted);
  margin: 0;
}

.analytics-controls {
  display: flex;
  gap: 12px;
  align-items: center;
}

.analytics-select {
  padding: 10px 16px;
  border: 1px solid var(--chart-border);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--chart-text);
  background: white;
  cursor: pointer;
  min-width: 140px;
  transition: all 0.2s ease;
}

.analytics-select:hover {
  border-color: var(--chart-primary);
}

.analytics-select:focus {
  outline: none;
  border-color: var(--chart-primary);
  box-shadow: 0 0 0 3px rgba(33, 141, 141, 0.15);
}

.analytics-btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.analytics-btn-primary {
  background: linear-gradient(
    135deg,
    var(--chart-primary) 0%,
    var(--chart-secondary) 100%
  );
  color: white;
}

.analytics-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(33, 141, 141, 0.3);
}

.analytics-btn-secondary {
  background: white;
  color: var(--chart-text);
  border: 1px solid var(--chart-border);
}

.analytics-btn-secondary:hover {
  background: var(--chart-grid);
  border-color: var(--chart-primary);
}

/* ============================================
   KPI Cards Grid
   ============================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

@media (max-width: 1400px) {
  .kpi-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }
}

.kpi-card {
  background: white;
  border-radius: 16px;
  padding: 20px;
  border: 1px solid var(--chart-border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 140px;
}

.kpi-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--chart-primary),
    var(--chart-tertiary)
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}

.kpi-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
  border-color: var(--chart-primary);
}

.kpi-card:hover::before {
  opacity: 1;
}

.kpi-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.kpi-card-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--chart-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0;
  line-height: 1.3;
  max-width: calc(100% - 50px);
}

.kpi-card-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.kpi-card-icon.revenue {
  background: linear-gradient(
    135deg,
    rgba(33, 141, 141, 0.15),
    rgba(33, 141, 141, 0.05)
  );
  color: var(--chart-primary);
}

.kpi-card-icon.transactions {
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.15),
    rgba(102, 126, 234, 0.05)
  );
  color: var(--chart-tertiary);
}

.kpi-card-icon.customers {
  background: linear-gradient(
    135deg,
    rgba(16, 185, 129, 0.15),
    rgba(16, 185, 129, 0.05)
  );
  color: var(--chart-success);
}

.kpi-card-icon.ticket {
  background: linear-gradient(
    135deg,
    rgba(245, 158, 11, 0.15),
    rgba(245, 158, 11, 0.05)
  );
  color: var(--chart-warning);
}

.kpi-card-icon.margin {
  background: linear-gradient(
    135deg,
    rgba(139, 92, 246, 0.15),
    rgba(139, 92, 246, 0.05)
  );
  color: var(--chart-purple);
}

.kpi-card-icon.products {
  background: linear-gradient(
    135deg,
    rgba(236, 72, 153, 0.15),
    rgba(236, 72, 153, 0.05)
  );
  color: var(--chart-pink);
}

.kpi-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.kpi-card-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--chart-text);
  margin: 0 0 8px 0;
  line-height: 1.2;
  word-break: break-word;
  overflow-wrap: break-word;
}

@media (min-width: 1400px) {
  .kpi-card-value {
    font-size: 26px;
  }
}

.kpi-card-change {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 12px;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kpi-card-change .trend-arrow {
  font-size: 10px;
}

.kpi-card-change.positive {
  background: rgba(16, 185, 129, 0.12);
  color: var(--chart-success);
}

.kpi-card-change.negative {
  background: rgba(239, 68, 68, 0.12);
  color: var(--chart-danger);
}

.kpi-card-change.neutral {
  background: rgba(100, 116, 139, 0.1);
  color: var(--chart-text-muted);
}

.kpi-card-change.loading {
  background: rgba(100, 116, 139, 0.08);
  color: var(--chart-text-muted);
  font-style: italic;
}

.kpi-card-sparkline {
  margin-top: auto;
  padding-top: 8px;
  height: 35px;
}

/* ============================================
   Chart Cards
   ============================================ */
.charts-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

.charts-row.full-width {
  grid-template-columns: 1fr;
}

.charts-row.three-col {
  grid-template-columns: repeat(3, 1fr);
}

.chart-card {
  background: white;
  border-radius: 16px;
  border: 1px solid var(--chart-border);
  overflow: hidden;
  transition: all 0.3s ease;
}

.chart-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

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

.chart-card-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chart-card-title h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--chart-text);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chart-card-title p {
  font-size: 13px;
  color: var(--chart-text-muted);
  margin: 0;
}

.chart-card-actions {
  display: flex;
  gap: 8px;
}

.chart-action-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--chart-border);
  background: white;
  color: var(--chart-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.chart-action-btn:hover {
  background: var(--chart-grid);
  color: var(--chart-primary);
  border-color: var(--chart-primary);
}

.chart-card-body {
  padding: 24px;
}

.chart-container {
  position: relative;
  height: 320px;
}

.chart-container.tall {
  height: 400px;
}

.chart-container.short {
  height: 250px;
}

/* ============================================
   Mini Charts & Sparklines
   ============================================ */
.mini-chart-container {
  height: 60px;
  margin-top: 12px;
}

/* ============================================
   Data Tables in Charts
   ============================================ */
.chart-table {
  width: 100%;
  border-collapse: collapse;
}

.chart-table thead {
  background: var(--chart-grid);
}

.chart-table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--chart-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chart-table th:last-child {
  text-align: right;
}

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

.chart-table td:last-child {
  text-align: right;
  font-weight: 600;
}

.chart-table tr:hover {
  background: rgba(33, 141, 141, 0.03);
}

.chart-table .rank {
  width: 40px;
  font-weight: 700;
  color: var(--chart-text-muted);
}

.chart-table .rank-badge {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

.chart-table .rank-badge.gold {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: white;
}

.chart-table .rank-badge.silver {
  background: linear-gradient(135deg, #94a3b8, #64748b);
  color: white;
}

.chart-table .rank-badge.bronze {
  background: linear-gradient(135deg, #cd7f32, #b87333);
  color: white;
}

/* ============================================
   ABC Analysis Badge
   ============================================ */
.abc-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
}

.abc-badge.class-a {
  background: rgba(16, 185, 129, 0.15);
  color: var(--chart-success);
}

.abc-badge.class-b {
  background: rgba(245, 158, 11, 0.15);
  color: var(--chart-warning);
}

.abc-badge.class-c {
  background: rgba(239, 68, 68, 0.15);
  color: var(--chart-danger);
}

/* ============================================
   Progress Bars
   ============================================ */
.progress-bar-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.progress-bar {
  flex: 1;
  height: 8px;
  background: var(--chart-grid);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.5s ease;
}

.progress-bar-fill.primary {
  background: linear-gradient(
    90deg,
    var(--chart-primary),
    var(--chart-tertiary)
  );
}

.progress-bar-fill.success {
  background: linear-gradient(90deg, var(--chart-success), #34d399);
}

.progress-bar-fill.warning {
  background: linear-gradient(90deg, var(--chart-warning), #fbbf24);
}

.progress-bar-fill.danger {
  background: linear-gradient(90deg, var(--chart-danger), #f87171);
}

.progress-value {
  min-width: 60px;
  text-align: right;
  font-weight: 600;
  color: var(--chart-text);
}

/* ============================================
   Legend Pills
   ============================================ */
.legend-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.legend-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--chart-grid);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--chart-text);
}

.legend-pill-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* ============================================
   Stats Boxes
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.stat-box {
  background: var(--chart-grid);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}

.stat-box-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--chart-text);
  margin-bottom: 4px;
}

.stat-box-label {
  font-size: 12px;
  color: var(--chart-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================
   Tooltip Custom Styles (ApexCharts)
   ============================================ */
.apexcharts-tooltip {
  border-radius: 12px !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15) !important;
  border: none !important;
}

.apexcharts-tooltip-title {
  background: var(--chart-text) !important;
  color: white !important;
  font-weight: 600 !important;
  padding: 10px 14px !important;
}

.apexcharts-tooltip-series-group {
  padding: 8px 14px !important;
}

/* ============================================
   Loading States
   ============================================ */
.chart-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 200px;
  color: var(--chart-text-muted);
  gap: 16px;
  background: linear-gradient(
    135deg,
    rgba(241, 245, 249, 0.5) 0%,
    rgba(255, 255, 255, 0.5) 100%
  );
  border-radius: 12px;
}

.chart-loading-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--chart-grid);
  border-top-color: var(--chart-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.chart-loading-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--chart-text-muted);
}

/* KPI Card Loading State */
.kpi-card.loading .kpi-card-value {
  background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  color: transparent;
  border-radius: 4px;
  min-width: 80px;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ============================================
   Empty State
   ============================================ */
.chart-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--chart-text-muted);
  text-align: center;
  padding: 40px;
}

.chart-empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.chart-empty-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.chart-empty-text {
  font-size: 14px;
  max-width: 280px;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1200px) {
  .charts-row {
    grid-template-columns: 1fr;
  }

  .charts-row.three-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .analytics-dashboard {
    padding: 16px;
  }

  .analytics-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .analytics-controls {
    width: 100%;
    flex-wrap: wrap;
  }

  .analytics-select {
    flex: 1;
    min-width: 120px;
  }

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

  .kpi-card-value {
    font-size: 24px;
  }

  .chart-card-header {
    padding: 16px;
  }

  .chart-card-body {
    padding: 16px;
  }

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

@media (max-width: 480px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .analytics-controls,
  .chart-action-btn {
    display: none !important;
  }

  .chart-card {
    break-inside: avoid;
    box-shadow: none !important;
    border: 1px solid #ddd !important;
  }

  .kpi-card {
    break-inside: avoid;
  }
}

/* ============================================
   Comparison Modal Styles
   ============================================ */
.analytics-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
  animation: fadeIn 0.2s ease;
}

.analytics-modal-content {
  background: white;
  border-radius: 20px;
  width: 100%;
  max-width: 1100px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.3s ease;
}

.analytics-modal-header {
  padding: 24px 32px;
  border-bottom: 1px solid var(--chart-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.analytics-modal-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--chart-text);
  margin: 0;
}

.analytics-modal-close {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: none;
  background: var(--chart-grid);
  color: var(--chart-text-muted);
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.analytics-modal-close:hover {
  background: var(--chart-danger);
  color: white;
}

.analytics-modal-body {
  padding: 32px;
  overflow-y: auto;
  flex: 1;
}

/* ============================================
   Donut Chart Center Text
   ============================================ */
.donut-center-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
}

.donut-center-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--chart-text);
}

.donut-center-label {
  font-size: 13px;
  color: var(--chart-text-muted);
}

/* ============================================
   Heatmap Calendar Specific
   ============================================ */
.heatmap-legend {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
  font-size: 12px;
  color: var(--chart-text-muted);
}

.heatmap-legend-gradient {
  display: flex;
  gap: 2px;
}

.heatmap-legend-box {
  width: 14px;
  height: 14px;
  border-radius: 3px;
}

/* ============================================
   Trend Indicators
   ============================================ */
.trend-up {
  color: var(--chart-success);
}

.trend-down {
  color: var(--chart-danger);
}

.trend-neutral {
  color: var(--chart-text-muted);
}

.trend-arrow {
  font-size: 14px;
  margin-right: 4px;
}