@import "bootstrap/dist/css/bootstrap.min.css";
@import "flatpickr/dist/flatpickr.min.css";

:root {
  --primary-color: #3b82f6;
  --secondary-color: #6b7280;
  --success-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #06b6d4;
  --light-color: #f8fafc;
  --dark-color: #1f2937;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #f8fafc;
  color: #374151;
}

/* Sidebar */
.sidebar {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.sidebar .nav-link {
  color: rgba(255, 255, 255, 0.8);
  padding: 0.75rem 1.5rem;
  margin: 0.25rem 0;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
  color: white;
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateX(5px);
}

.sidebar .nav-link i {
  width: 20px;
  margin-right: 10px;
}

/* Cards */
.card {
  border: none;
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.card-header {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-bottom: 1px solid #e2e8f0;
  border-radius: 1rem 1rem 0 0 !important;
  padding: 1.5rem;
}

/* Buttons */
.btn {
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border: none;
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  border: none;
}

/* Tables */
.table {
  border-radius: 0.5rem;
  overflow: hidden;
}

.table thead th {
  background-color: #f8fafc;
  border-bottom: 2px solid #e2e8f0;
  font-weight: 600;
  color: #374151;
}

.table tbody tr:hover {
  background-color: #f8fafc;
}

/* Forms */
.form-control,
.form-select {
  border-radius: 0.5rem;
  border: 1px solid #d1d5db;
  padding: 0.75rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-label {
  font-weight: 500;
  color: #374151;
  margin-bottom: 0.5rem;
}

/* Dashboard Stats */
.stat-card {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border-left: 4px solid var(--primary-color);
}

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

.stat-card.danger {
  border-left-color: var(--danger-color);
}

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

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: #1f2937;
}

.stat-label {
  color: #6b7280;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Alerts */
.alert {
  border-radius: 0.5rem;
  border: none;
  padding: 1rem 1.5rem;
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
}

.alert-danger {
  background-color: #fee2e2;
  color: #991b1b;
}

.alert-warning {
  background-color: #fef3c7;
  color: #92400e;
}

.alert-info {
  background-color: #dbeafe;
  color: #1e40af;
}

/* Badges */
.badge {
  font-size: 0.75rem;
  padding: 0.375rem 0.75rem;
  border-radius: 0.375rem;
}

/* Status badges */
.status-paid {
  background-color: #d1fae5;
  color: #065f46;
}

.status-pending {
  background-color: #fef3c7;
  color: #92400e;
}

.status-overdue {
  background-color: #fee2e2;
  color: #991b1b;
}

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.show {
    transform: translateX(0);
  }

  .stat-value {
    font-size: 1.5rem;
  }
}

/* Print styles */
@media print {
  .sidebar,
  .btn,
  .no-print {
    display: none !important;
  }

  .main-content {
    margin-left: 0 !important;
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #a8a8a8;
}

/* Animations */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-in {
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}