/* Acumen Brand Colors */
:root {
  --acumen-purple: #764ba2;
  --acumen-light-purple: #b794d4;
  --acumen-pink: #e91e63;
  --acumen-dark: #2d1b3d;
  --acumen-light: #f8f9fa;
  --acumen-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Logo Styles */
.acumen-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--acumen-dark);
}

.acumen-logo-box {
  width: 48px;
  height: 48px;
  background: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.acumen-logo-text {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--acumen-purple);
  letter-spacing: -0.5px;
}

/* Enhanced Global Styles */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--acumen-light);
  color: #333;
}

/* Enhanced Cards */
.card {
  border: none;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.card-header {
  background: white;
  border-bottom: 1px solid #e9ecef;
  padding: 1.25rem 1.5rem;
  border-radius: 16px 16px 0 0;
}

/* Enhanced Buttons */
.btn {
  border-radius: 8px;
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  transition: all 0.3s;
}

.btn-primary {
  background: var(--acumen-gradient);
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-success {
  background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
  border: none;
}

.btn-danger {
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  border: none;
}

/* Enhanced Tables */
.table {
  border-radius: 8px;
  overflow: hidden;
}

.table thead th {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border: none;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  color: #495057;
  padding: 1rem;
}

.table tbody tr {
  transition: background 0.2s;
}

.table tbody tr:hover {
  background: #f8f9fa;
}

/* Enhanced Form Controls */
.form-control, .form-select {
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  padding: 0.75rem;
  transition: all 0.3s;
}

.form-control:focus, .form-select:focus {
  border-color: var(--acumen-purple);
  box-shadow: 0 0 0 0.2rem rgba(118, 75, 162, 0.25);
}

/* Badges */
.badge {
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.75rem;
}

/* Navigation Bar */
.navbar-brand {
  font-weight: 700;
  color: var(--acumen-purple);
}

/* User Info Bar */
.user-info-bar {
  background: white;
  border-radius: 12px;
  padding: 1rem 1.5rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  margin-bottom: 1.5rem;
}

/* Section Titles */
.section-title {
  font-weight: 700;
  color: var(--acumen-dark);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

/* Status Badges */
.status-badge {
  padding: 0.375rem 0.75rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.75rem;
  display: inline-block;
}

.status-pending {
  background: #fff3cd;
  color: #856404;
}

.status-approved {
  background: #d4edda;
  color: #155724;
}

.status-rejected {
  background: #f8d7da;
  color: #721c24;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.3s ease-out;
}

/* Enhanced Input Groups */
.input-group-text {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border: 2px solid #e0e0e0;
  color: #764ba2;
  font-weight: 600;
}

/* Enhanced Modals */
.modal-content {
  border: none;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.modal-header {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-bottom: 2px solid #e9ecef;
  border-radius: 16px 16px 0 0;
  padding: 1.5rem;
}

.modal-title {
  font-weight: 700;
  color: #2d1b3d;
}

/* Enhanced Alerts */
.alert {
  border-radius: 12px;
  border: none;
  padding: 1rem 1.25rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.alert-info {
  background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
  color: #0c5460;
}

.alert-danger {
  background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
  color: #721c24;
}

.alert-success {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
  color: #155724;
}

.alert-warning {
  background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
  color: #856404;
}

/* Enhanced Tables */
.table tbody tr {
  border-bottom: 1px solid #f0f0f0;
  transition: all 0.2s;
}

.table tbody tr:last-child {
  border-bottom: none;
}

.table tbody td {
  padding: 1rem;
  vertical-align: middle;
}

/* Loading States */
.spinner-border-sm {
  width: 1rem;
  height: 1rem;
  border-width: 0.15em;
}

/* Enhanced Cards with Icons */
.card-header h4, .card-header h5 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #2d1b3d;
}

.card-header h4 i, .card-header h5 i {
  color: #764ba2;
}

/* Smooth Transitions */
* {
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

/* Responsive */
@media (max-width: 768px) {
  .sheet {
    margin: 1rem;
    padding: 0 0.5rem;
  }
  
  .card {
    border-radius: 12px;
  }
  
  .navbar-content {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }
  
  .acumen-logo {
    width: 100%;
    justify-content: center;
  }
}