:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --border: #334155;
  --danger: #f87171;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  padding: 24px 32px 8px;
}

.topbar h1 {
  margin: 0;
  font-size: 22px;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

main {
  padding: 16px 32px 48px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-start;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
}

.field label {
  color: var(--muted);
}

.field-hint {
  color: var(--muted);
  font-size: 11px;
}

.picklist {
  position: relative;
}

.picklist-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 14px;
  min-width: 220px;
  text-align: left;
  cursor: pointer;
}

.picklist-toggle::after {
  content: '▾';
  color: var(--muted);
  flex-shrink: 0;
}

.picklist-toggle.open::after {
  content: '▴';
}

.gestor-checkboxes {
  display: none;
  flex-direction: column;
}

.gestor-checkboxes.picklist-panel {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 30;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px;
  min-width: 300px;
  max-height: 320px;
  overflow-y: auto;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
}

.gestor-checkboxes.picklist-panel.open {
  display: flex;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 4px;
  color: var(--text) !important;
  cursor: pointer;
}

.checkbox-item:hover {
  background: var(--panel);
}

.checkbox-item input {
  cursor: pointer;
}

select, input[type="number"] {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 14px;
  min-width: 160px;
}

.field-actions {
  flex-direction: row;
  gap: 10px;
  margin-top: 21px;
}

.field-auto {
  margin-top: 21px;
}

button {
  background: var(--accent);
  color: #0f172a;
  border: none;
  border-radius: 6px;
  padding: 9px 14px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

button.secondary {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.cohortes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.chip {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 8px 8px 14px;
  font-size: 13px;
}

.chip .chip-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.chip .stats {
  color: var(--muted);
}

.chip button {
  background: transparent;
  color: var(--danger);
  border: none;
  padding: 2px 8px;
  font-size: 14px;
  border-radius: 999px;
}

.status {
  min-height: 20px;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.status.error {
  color: var(--danger);
}

.charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 900px) {
  .charts {
    grid-template-columns: 1fr;
  }
}

.chart-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

.chart-card h2 {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--text);
}

.table-hint {
  margin: -4px 0 12px;
  color: var(--muted);
  font-size: 12px;
}

.table-scroll {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  color: var(--muted);
  font-weight: 600;
}

.data-table th.sortable {
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.data-table th.sortable:hover {
  color: var(--text);
}

.data-table th.sortable::after {
  content: '↕';
  color: var(--border);
  margin-left: 4px;
  font-size: 11px;
}

.data-table th.sortable.sort-asc::after {
  content: '↑';
  color: var(--accent);
}

.data-table th.sortable.sort-desc::after {
  content: '↓';
  color: var(--accent);
}

.data-table td.transicion-alta {
  color: var(--danger);
  font-weight: 600;
}