/* ============================================
   DASHBOARD V2 — Visual Dashboard for Mi Bodega POS
   Clean, modern, professional — no external libraries
   ============================================ */

/* ---------- DASHBOARD PANEL ---------- */
.dash-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

/* ---------- DASHBOARD HEADER ---------- */
.dash-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.dash-header-greeting {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.dash-header-greeting h2 {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--font-xl);
  letter-spacing: 0.04em;
  color: var(--color-text-primary);
  margin: 0;
}

.dash-header-subtitle {
  font-family: var(--font-ui);
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.dash-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.dash-period-tabs {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.dash-period-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  letter-spacing: 0.06em;
  cursor: pointer;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  transition: border-color var(--transition-normal), background var(--transition-normal), color var(--transition-normal);
}

.dash-period-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-hover);
  color: var(--color-text-primary);
}

.dash-period-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.dash-period-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.dash-header-actions .btn {
  min-height: 36px;
}

/* ============================================
   KPI CARDS GRID
   ============================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.kpi-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

@media (prefers-reduced-motion: reduce) {
  .kpi-card { transition: none; }
}

.kpi-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.kpi-card__icon {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.kpi-card__title {
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  line-height: 1.3;
  font-weight: 600;
}

.kpi-card__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--font-2xl);
  color: var(--color-text-primary);
  line-height: 1.2;
  word-break: break-word;
}

.kpi-card__subtitle {
  font-family: var(--font-ui);
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
  margin-top: auto;
}

/* KPI Card Variants */
.kpi-card--primary .kpi-card__icon { color: var(--color-primary); }
.kpi-card--secondary .kpi-card__icon { color: var(--color-secondary); }
.kpi-card--calm .kpi-card__icon { color: var(--color-calm-dark); }
.kpi-card--success .kpi-card__icon { color: var(--color-success); }
.kpi-card--alert .kpi-card__icon { color: var(--color-warning); }
.kpi-card--fiado .kpi-card__icon { color: var(--color-warning); }

.kpi-card--alert {
  border-color: var(--color-warning-border);
  background: var(--color-warning-bg);
}

.kpi-card--fiado {
  border-color: var(--color-warning-border);
  background: var(--color-warning-bg);
}

/* ============================================
   DASHBOARD GRID LAYOUT
   ============================================ */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.dashboard-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.dashboard-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  flex: 1;
  min-height: 0;
}

.dashboard-section__title {
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  font-weight: 700;
  margin: 0 0 var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

/* ============================================
   VERTICAL BAR CHART (7-day sales)
   ============================================ */
.bar-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-2);
  height: 180px;
  padding: var(--space-2) 0 var(--space-3);
}

.bar-chart__bar-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  min-width: 0;
}

.bar-chart__bar {
  width: 100%;
  max-width: 48px;
  height: var(--bar-height, 0%);
  min-height: 0;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  transition: height 0.4s ease-out, background var(--transition-normal);
  position: relative;
}

@media (prefers-reduced-motion: reduce) {
  .bar-chart__bar { transition: background var(--transition-normal); }
}

.bar-chart__bar:hover {
  background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
}

.bar-chart__bar--today {
  background: linear-gradient(180deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
}

.bar-chart__bar--today:hover {
  background: linear-gradient(180deg, var(--color-secondary-light) 0%, var(--color-secondary) 100%);
}

.bar-chart__label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-text-muted);
  text-align: center;
  white-space: nowrap;
  text-transform: capitalize;
}

.bar-chart__value {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.bar-chart__bar-wrapper:hover .bar-chart__value {
  opacity: 1;
  transform: translateY(0);
}

.chart-empty {
  font-family: var(--font-ui);
  font-size: var(--font-sm);
  color: var(--color-text-muted);
  text-align: center;
  padding: var(--space-6) var(--space-4);
  background: var(--color-bg);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
}

/* ============================================
   HORIZONTAL BAR CHART (Top 5 products)
   ============================================ */
.horizontal-bar-chart {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.hbar-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.hbar-label {
  font-family: var(--font-ui);
  font-size: var(--font-sm);
  color: var(--color-text-primary);
  font-weight: 500;
  min-width: 0;
  flex: 1 1 120px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hbar-track {
  flex: 1 1 200px;
  height: 10px;
  background: var(--color-border-light);
  border-radius: var(--radius-pill);
  overflow: hidden;
  min-width: 80px;
}

.hbar-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  width: 0;
  transition: width 0.5s ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .hbar-fill { transition: none; }
}

.hbar-value {
  font-family: var(--font-mono);
  font-size: var(--font-sm);
  font-weight: 700;
  color: var(--color-text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 2.5ch;
  text-align: right;
}

/* ============================================
   DONUT CHART (Payment methods)
   ============================================ */
.donut-chart {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  position: relative;
}

.donut-chart__svg {
  transform: rotate(-90deg);
  display: block;
}

.donut-chart__bg {
  stroke: var(--color-border);
}

.donut-chart__segment {
  transition: stroke-dashoffset 0.6s ease-out, stroke-dasharray 0.6s ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .donut-chart__segment { transition: none; }
}

.donut-chart__center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.donut-chart__total {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--font-xl);
  color: var(--color-text-primary);
  line-height: 1.1;
}

.donut-chart__total-label {
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.donut-chart__legend {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: 100%;
  max-width: 280px;
  padding-top: var(--space-2);
}

.donut-chart__legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-ui);
  font-size: var(--font-sm);
}

.donut-chart__legend-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.donut-chart__legend-label {
  flex: 1;
  color: var(--color-text-primary);
  font-weight: 500;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.donut-chart__legend-value {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
}

.donut-chart__legend-pct {
  font-family: var(--font-mono);
  font-size: var(--font-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-col {
    gap: var(--space-5);
  }
}

@media (max-width: 768px) {
  .dash-panel {
    padding: var(--space-4);
  }

  .dash-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
  }

  .dash-header-greeting h2 {
    font-size: var(--font-lg);
  }

  .dash-header-subtitle {
    font-size: var(--font-xs);
  }

  .dash-header-actions {
    justify-content: space-between;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .kpi-card {
    padding: var(--space-4);
  }

  .kpi-card__value {
    font-size: var(--font-xl);
  }

  .dashboard-section {
    padding: var(--space-4);
  }

  .dashboard-section__title {
    font-size: 10px;
    margin-bottom: var(--space-3);
  }

  .bar-chart {
    height: 140px;
    gap: var(--space-1);
  }

  .hbar-track {
    min-width: 60px;
  }

  .hbar-label {
    font-size: 11px;
  }

  .hbar-value {
    font-size: 11px;
  }

  .donut-chart__svg {
    width: 120px;
    height: 120px;
  }

  .donut-chart__total {
    font-size: var(--font-lg);
  }

  .donut-chart__legend {
    max-width: none;
  }

  .donut-chart__legend-item {
    gap: var(--space-2);
  }

  .donut-chart__legend-pct {
    font-size: 10px;
  }
}

@media (max-width: 430px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }
}

  .dash-period-btn {
    padding: var(--space-1) var(--space-3);
    font-size: 10px;
  }

  .dash-header-actions .btn {
    padding: var(--space-1) var(--space-2);
    font-size: 10px;
  }
}

@media (max-width: 390px) {
  .bar-chart {
    height: 120px;
  }

  .hbar-label {
    max-width: 80px;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .dash-panel {
    box-shadow: none;
    border: none;
    padding: 0;
  }

  .dash-header,
  .dash-period-tabs,
  .dash-header-actions .btn {
    display: none !important;
  }

  .kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-3);
    page-break-inside: avoid;
  }

  .kpi-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--color-border);
  }

  .dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }

  .dashboard-section {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--color-border);
  }

  .bar-chart__bar {
    background: var(--color-primary) !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .hbar-fill {
    background: var(--color-primary) !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .donut-chart__segment {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@media (prefers-contrast: high) {
  .kpi-card {
    border-width: 2px;
  }

  .bar-chart__bar--today {
    background: var(--color-text-primary) !important;
  }

  .hbar-fill {
    background: var(--color-text-primary) !important;
  }

  .donut-chart__segment {
    stroke-width: 14px !important;
  }
}

/* Focus states for interactive elements */
.dash-period-btn:focus-visible,
.kpi-card:focus-visible {
  outline: none;
  box-shadow: var(--ring-focus);
  border-radius: var(--radius-sm);
}