/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .kpi-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width);
  }
  .sidebar.mobile-open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .sidebar.collapsed ~ .main-content { margin-left: 0; }
  .mobile-menu-btn { display: flex; }

  /* Header compact */
  .top-header { padding: 0 12px; gap: 8px; }
  .page-subtitle { display: none; }
  .header-left { gap: 8px; }
  .header-right { gap: 6px; }
  .month-selector { padding: 3px 4px; gap: 4px; }
  .month-label { font-size: 12px; min-width: 68px; }
  .month-btn { width: 24px; height: 24px; }
  .theme-toggle-btn { width: 28px; height: 28px; }

  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .chart-row { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .donut-container { flex-direction: column; align-items: flex-start; }
  .page { padding: 16px; }

  .kpi-card { padding: 14px; }
  .kpi-value { font-size: 22px; }
  .kpi-label { font-size: 11px; }

  .section-toolbar { flex-wrap: wrap; gap: 10px; }
  .toolbar-actions { width: 100%; justify-content: space-between; }

  .data-table th, .data-table td { padding: 8px 6px; font-size: 12px; }
  .data-table .col-num { width: 48px; padding: 8px 3px; }
  .detail-table th, .detail-table td { padding: 6px 4px; font-size: 11px; }
  .avatar { width: 26px; height: 26px; font-size: 10px; }
  .avatar-cell { gap: 6px; }

  .toast-container { bottom: 12px; right: 12px; left: 12px; }
  .toast { max-width: 100%; }
}

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .kpi-card { padding: 12px; }
  .kpi-value { font-size: 20px; }
  .kpi-icon { width: 24px; height: 24px; }
  .kpi-icon svg { width: 14px; height: 14px; }

  .calendar-legend { flex-wrap: wrap; gap: 8px; }
  .data-cal-legend { flex-wrap: wrap; gap: 8px; }

  .section-title { font-size: 15px; }
  .page { padding: 12px; }
  .top-header { padding: 10px 12px; }
  .month-label { font-size: 12px; }
}