/* ================================================
   Alpha Provisionsanalyse - Component Styles
   ================================================ */

/* ================================================
   Buttons
   ================================================ */

button {
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  padding: 0.625rem 1.25rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  white-space: nowrap;
}

.btn-primary {
  background: var(--secondary-color);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: #0090c7;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  background: var(--gray-300);
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: white;
  color: var(--primary-color);
  border: 1px solid var(--gray-300);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--gray-50);
  border-color: var(--gray-400);
}

.btn-danger {
  background: var(--danger-color);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-danger:hover {
  background: #dc2626;
  box-shadow: var(--shadow-md);
}

.btn-text {
  background: transparent;
  color: var(--secondary-color);
  padding: 0.5rem 1rem;
}

.btn-text:hover {
  background: var(--gray-100);
}

.btn-icon {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  padding: 0.5rem;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  justify-content: center;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.3);
}

.btn-large {
  font-size: 1.1rem;
  padding: 0.875rem 2rem;
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ================================================
   Forms
   ================================================ */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--gray-700);
  font-size: 0.95rem;
}

.input-field,
.filter-select,
.search-input {
  width: 100%;
  padding: 0.625rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  background: white;
}

.input-field:focus,
.filter-select:focus,
.search-input:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(0, 163, 224, 0.1);
}

.input-field:disabled {
  background: var(--gray-100);
  cursor: not-allowed;
}

.input-with-button {
  display: flex;
  gap: var(--spacing-sm);
}

.input-with-button .input-field {
  flex: 1;
}

.input-hint {
  display: block;
  margin-top: var(--spacing-sm);
  font-size: 0.85rem;
  color: var(--gray-500);
}

.text-muted {
  color: var(--gray-500);
  font-size: 0.875rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  padding: var(--spacing-sm) 0;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--secondary-color);
}

.checkbox-label span {
  color: var(--gray-700);
  font-size: 0.95rem;
}

.range-input {
  width: 100%;
  height: 6px;
  border-radius: var(--radius-lg);
  background: var(--gray-200);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--secondary-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.range-input::-webkit-slider-thumb:hover {
  background: var(--primary-color);
  transform: scale(1.1);
}

.range-input::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--secondary-color);
  cursor: pointer;
  border: none;
}

/* ================================================
   Analysis Controls
   ================================================ */

.analysis-controls {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--gray-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
}

.analysis-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

/* ================================================
   Tables
   ================================================ */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.data-table thead {
  background: var(--gray-50);
}

.data-table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--gray-700);
  border-bottom: 2px solid var(--gray-200);
  white-space: nowrap;
}

.data-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-900);
}

.data-table tbody tr {
  transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
  background: var(--gray-50);
}

.data-table .empty-state {
  padding: var(--spacing-2xl);
  text-align: center;
  color: var(--gray-500);
}

/* ================================================
   Modals
   ================================================ */

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease-in;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.3s ease-out;
}

.modal-large {
  max-width: 900px;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  margin: 0;
  color: var(--primary-color);
}

.modal-close {
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--gray-400);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--gray-100);
  color: var(--gray-700);
}

.modal-body {
  padding: var(--spacing-xl);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-top: 1px solid var(--gray-200);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

.settings-section {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--gray-200);
}

.settings-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.settings-section h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--gray-700);
}

/* ================================================
   Toast Notifications
   ================================================ */

.toast-container {
  position: fixed;
  top: 100px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 400px;
}

.toast {
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  animation: slideInRight 0.3s ease-out;
  border-left: 4px solid var(--info-color);
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast-success {
  border-left-color: var(--success-color);
}

.toast-warning {
  border-left-color: var(--warning-color);
}

.toast-error {
  border-left-color: var(--danger-color);
}

.toast-content {
  flex: 1;
}

.toast-content strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--gray-900);
  font-size: 0.95rem;
}

.toast-content p {
  margin: 0;
  color: var(--gray-600);
  font-size: 0.875rem;
}

.toast-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--gray-400);
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.toast-close:hover {
  color: var(--gray-700);
}

/* ================================================
   Demo Panel
   ================================================ */

.demo-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1500;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-xl);
  max-width: 600px;
  width: 90%;
}

.demo-panel-content h3 {
  margin-bottom: var(--spacing-md);
  color: var(--primary-color);
}

.demo-panel-content p {
  margin-bottom: var(--spacing-lg);
  color: var(--gray-600);
}

.demo-scenarios {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.demo-btn {
  width: 100%;
  justify-content: flex-start;
  background: var(--gray-50);
  color: var(--gray-900);
  border: 1px solid var(--gray-200);
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
}

.demo-btn:hover {
  background: var(--secondary-color);
  color: white;
  border-color: var(--secondary-color);
}

/* ================================================
   View Toggle
   ================================================ */

.view-toggle {
  display: flex;
  gap: 0;
  background: var(--gray-100);
  border-radius: var(--radius-md);
  padding: 0.25rem;
}

.view-btn {
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--gray-600);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.view-btn.active {
  background: white;
  color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.view-btn:hover:not(.active) {
  color: var(--gray-900);
}

/* ================================================
   Risk Badges
   ================================================ */

.risk-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
}

.risk-badge.gruen {
  background: rgba(16, 185, 129, 0.1);
  color: var(--risk-green);
}

.risk-badge.gelb {
  background: rgba(245, 158, 11, 0.1);
  color: var(--risk-yellow);
}

.risk-badge.orange {
  background: rgba(249, 115, 22, 0.1);
  color: var(--risk-orange);
}

.risk-badge.rot {
  background: rgba(239, 68, 68, 0.1);
  color: var(--risk-red);
}

/* ================================================
   Utility Classes
   ================================================ */

.hidden {
  display: none !important;
}

.loading {
  opacity: 0.6;
  pointer-events: none;
  cursor: wait;
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

/* ================================================
   Scrollbar Styling
   ================================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: var(--radius-lg);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* ================================================
   Hierarchical Analysis Styles (NEU!)
   ================================================ */

/* Demo Panel Hierarchical Buttons */
.demo-btn.hierarchical {
  background: linear-gradient(135deg, #003366 0%, #00509E 100%);
  color: white;
  border: 2px solid #00A3E0;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem;
  min-height: 85px;
}

.demo-btn.hierarchical .icon {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.demo-btn.hierarchical:hover {
  background: linear-gradient(135deg, #00509E 0%, #0076CE 100%);
  border-color: #00A3E0;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 163, 224, 0.4);
}

.demo-btn.hierarchical-all {
  background: linear-gradient(135deg, #FF6B00 0%, #FF8C3A 100%);
  color: white;
  border: 2px solid #FFB366;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
  min-height: 85px;
  font-weight: 700;
}

.demo-btn.hierarchical-all:hover {
  background: linear-gradient(135deg, #FF8C3A 0%, #FFA366 100%);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 107, 0, 0.5);
}

/* Hierarchie-Statistiken Grid */
.hierarchie-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.stat-box {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--gray-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-fast);
}

.stat-box:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-color);
}

.stat-box.alert {
  background: #FFF5F5;
  border-color: #FFC9C9;
}

.stat-box.alert:hover {
  border-color: var(--danger-color);
}

.stat-icon {
  font-size: 2rem;
  opacity: 0.8;
}

.stat-content {
  flex: 1;
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.stat-box.alert .stat-number {
  color: var(--danger-color);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-top: 0.25rem;
}

/* Info Badge */
.info-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: var(--secondary-color);
  color: white;
  border-radius: 50%;
  font-size: 0.75rem;
  cursor: help;
  margin-left: 0.5rem;
}

/* Analysis Cards mit Hierarchie-Indikator */
.analysis-card.hierarchical {
  border-left: 4px solid var(--secondary-color);
}

.analysis-card.combined-analysis {
  border-left: 4px solid #FF6B00;
  background: linear-gradient(to right, rgba(255, 107, 0, 0.05) 0%, transparent 10%);
}

.hierarchie-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.5rem;
  background: var(--secondary-color);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

.hierarchie-badge.supervisor {
  background: #00509E;
}

.hierarchie-badge.subordinate {
  background: #0076CE;
}

.hierarchie-badge.combined {
  background: #FF6B00;
}

/* ================================================
   Transaction Status Badges (NEW)
   ================================================ */

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 12px;
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  border: none;
}

.status-badge::before {
  font-size: 1rem;
  font-weight: 400;
}

.status-badge.status-neu {
  background: #FEF3C7;
  color: #92400E;
}

.status-badge.status-neu::before {
  content: '◇';
}

.status-badge.status-geprüft {
  background: #DBEAFE;
  color: #1E40AF;
}

.status-badge.status-geprüft::before {
  content: '○';
}

.status-badge.status-geflaggt {
  background: #FEE2E2;
  color: #991B1B;
}

.status-badge.status-geflaggt::before {
  content: '⚠';
}

.status-badge.status-ok {
  background: #D1FAE5;
  color: #065F46;
}

.status-badge.status-ok::before {
  content: '✓';
}

/* ================================================
   Print Styles
   ================================================ */

@media print {
  .sidebar,
  .header-actions,
  .modal,
  .toast-container,
  button {
    display: none !important;
  }

  .app-main {
    display: block;
  }

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

/* ================================================
   Dark Mode Support (Optional)
   ================================================ */

@media (prefers-color-scheme: dark) {
  body.dark-mode {
    background-color: var(--gray-900);
    color: var(--gray-100);
  }

  body.dark-mode .card,
  body.dark-mode .modal-content {
    background: var(--gray-800);
  }

  body.dark-mode .drop-zone {
    background: var(--gray-800);
    border-color: var(--gray-600);
  }

  /* Add more dark mode styles as needed */
}

/* ================================================
   Modern Icon System - Simple Geometric Icons
   ================================================ */

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.125rem;
  height: 1.125rem;
  font-style: normal;
  font-weight: 400;
  color: currentColor;
}

/* Simple geometric icons using Unicode symbols */
.icon.icon-dashboard::before { content: '◆'; }      /* Diamond for KPI Dashboard */
.icon.icon-search::before { content: '○'; }         /* Circle for Search/Auffälligkeiten */
.icon.icon-upload::before { content: '△'; }         /* Triangle up for Upload */
.icon.icon-analytics::before { content: '◈'; }      /* Diamond with dot for Analytics */
.icon.icon-history::before { content: '▭'; }        /* Rectangle for History */
.icon.icon-building::before { content: '▢'; }       /* Square for Agencies */
.icon.icon-reports::before { content: '▣'; }        /* Filled square for Reports */
.icon.icon-new::before { content: '◇'; }            /* Diamond outline for New */
.icon.icon-check::before { content: '✓'; }          /* Check mark */
.icon.icon-close::before { content: '✕'; }          /* X mark */
.icon.icon-flag::before { content: '⚑'; }           /* Flag */
.icon.icon-excel::before { content: '⊞'; }          /* Plus in box for Excel */

/* Status icons */
.icon.icon-status-neu::before { content: '◇'; }         /* Diamond outline for NEU */
.icon.icon-status-geprueft::before { content: '○'; }    /* Circle for GEPRÜFT */
.icon.icon-status-geflaggt::before { content: '⚠'; }    /* Warning for GEFLAGGT */
.icon.icon-status-ok::before { content: '✓'; }          /* Check for OK */

/* KPI Card icons */
.icon.icon-document::before { content: '▭'; }           /* Document for Abrechnungen */
.icon.icon-building-large::before { content: '▢'; }     /* Building for Agenturen */
.icon.icon-list::before { content: '▤'; }               /* List for Transaktionen */
.icon.icon-euro::before { content: '€'; }               /* Euro for Provisionen */
.icon.icon-calendar::before { content: '◫'; }           /* Calendar for Zeitraum */
.icon.icon-alert::before { content: '⚠'; }              /* Alert for Auffälligkeiten */

/* Navigation icons size adjustment */
.nav-item .icon {
  width: 1.25rem;
  height: 1.25rem;
  font-size: 1.125rem;
}
}

/* ================================================
   Modern Status Dropdown
   ================================================ */

.modern-status-dropdown {
  width: auto !important;
  min-width: 140px !important;
  padding: 0.375rem 1.75rem 0.375rem 0.75rem !important;
  border-radius: 12px !important;
  border: none !important;
  font-size: 0.875rem !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  transition: all 0.2s ease !important;
  appearance: none !important;
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" width="10" height="6" viewBox="0 0 10 6"><path fill="%23666" d="M1 0L5 4 9 0 10 1 5 6 0 1z"/></svg>') !important;
  background-repeat: no-repeat !important;
  background-position: right 0.5rem center !important;
  background-size: 10px 6px !important;
  outline: none !important;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1) !important;
  overflow: hidden !important;
}

.modern-status-dropdown:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15) !important;
}

.modern-status-dropdown:focus {
  outline: none !important;
  box-shadow: 0 0 0 3px rgba(0, 51, 102, 0.1) !important;
  border-radius: 12px !important;
}

/* Dropdown options - Browser unterstützen nur begrenzte Styles */
.modern-status-dropdown option {
  padding: 0.5rem 1rem !important;
  font-weight: 600 !important;
  font-size: 0.875rem !important;
  border: none !important;
}

.modern-status-dropdown option:hover,
.modern-status-dropdown option:focus,
.modern-status-dropdown option:checked {
  background: #f3f4f6 !important;
  outline: none !important;
}

/* Status-specific colors in dropdown */
.modern-status-dropdown option[value="NEW"] {
  background: #FEF3C7 !important;
  color: #92400E !important;
}

.modern-status-dropdown option[value="IN_BEARBEITUNG"] {
  background: #FEF3C7 !important;
  color: #92400E !important;
}

.modern-status-dropdown option[value="GEPRÜFT"] {
  background: #DBEAFE !important;
  color: #1E40AF !important;
}

.modern-status-dropdown option[value="GEFLAGGT"] {
  background: #FEE2E2 !important;
  color: #991B1B !important;
}

.modern-status-dropdown option[value="OK"] {
  background: #D1FAE5 !important;
  color: #065F46 !important;
}

.modern-status-dropdown option[value="ARCHIVIERT"] {
  background: #F3F4F6 !important;
  color: #6B7280 !important;
}

/* ================================================
   KPI Charts
   ================================================ */

.kpi-chart-container {
  margin-top: 1rem;
  width: 100%;
  height: 80px;
  position: relative;
}

.kpi-chart-canvas {
  width: 100%;
  height: 80px;
  cursor: crosshair;
  transition: opacity 0.2s ease;
}

.kpi-chart-canvas:hover {
  opacity: 0.9;
}

/* Chart Tooltip */
.kpi-chart-tooltip {
  position: fixed;
  background: white;
  border: 1px solid #E5E7EB;
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  pointer-events: none;
  z-index: 10000;
  min-width: 80px;
  animation: tooltipFadeIn 0.2s ease;
}

@keyframes tooltipFadeIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Enhanced KPI Card with Chart */
.kpi-card {
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.kpi-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

/* KPI Value with subtle animation */
.kpi-value {
  transition: all 0.3s ease;
}

.kpi-card:hover .kpi-value {
  transform: scale(1.05);
}