html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #0d6efd;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
  background-color: #f8f9fa;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #212529;
}

/* Container Improvements */
.container {
  max-width: 1200px;
}

/* Enhanced Navigation - Clean Bootstrap Style */
.navbar {
  box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.navbar-brand {
  font-weight: 600;
  color: #fff !important;
}

.navbar-brand:hover {
  color: #e9ecef !important;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85) !important;
  font-weight: 500;
}

.nav-link:hover, .nav-link:focus {
  color: #fff !important;
}

.navbar-text {
  color: rgba(255, 255, 255, 0.85) !important;
}

.navbar-text .fw-medium {
  color: #fff !important;
}

/* Enhanced Cards - Classic Bootstrap */
.card {
  border: 1px solid rgba(0,0,0,.125);
  border-radius: 0.375rem;
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  transition: box-shadow 0.15s ease-in-out;
  background-color: #fff;
}

.card:hover {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
  background-color: #0d6efd;
  color: #fff !important;
  border-bottom: 1px solid rgba(0,0,0,.125);
  font-weight: 600;
}

.card-header.bg-white {
  background-color: #fff !important;
  color: #212529 !important;
}

.card-header.bg-light {
  background-color: #f8f9fa !important;
  color: #495057 !important;
}

.card-header.bg-success {
  background-color: #198754 !important;
  color: #fff !important;
}

.card-header.bg-success.bg-opacity-10 {
  background-color: rgba(25, 135, 84, 0.1) !important;
  color: #198754 !important;
}

.card-title {
  color: inherit !important;
}

.card-body {
  color: #212529;
}

.card-footer {
  background-color: #f8f9fa;
  color: #495057;
}

.card-footer.bg-light {
  color: #495057 !important;
}

/* Enhanced Tables - Bootstrap Style */
.table {
  --bs-table-bg: #fff;
  --bs-table-color: #212529;
  border-radius: 0.375rem;
  overflow: hidden;
  color: #212529;
}

.table thead th {
  background-color: #e9ecef;
  border-bottom: 2px solid #dee2e6;
  font-weight: 600;
  color: #495057 !important;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
}

.table tbody td {
  color: #495057;
}

.table-hover tbody tr:hover {
  background-color: rgba(13, 110, 253, 0.075);
  color: #212529;
}

.table-hover tbody tr:hover td {
  color: #212529;
}

.table-light thead th {
  background-color: #f8f9fa;
  color: #495057 !important;
}

.table-secondary {
  --bs-table-bg: #e2e3e5;
  --bs-table-color: #000;
  color: #000;
}

/* Form Controls - Bootstrap Style */
.form-control, .form-select {
  border: 1px solid #ced4da;
  border-radius: 0.375rem;
  font-weight: 400;
  color: #495057;
  background-color: #fff;
}

.form-control:focus, .form-select:focus {
  border-color: #86b7fe;
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
  color: #212529;
}

.form-control::placeholder {
  color: #6c757d;
}

.form-label {
  color: #495057;
  font-weight: 500;
}

.input-group-text {
  background-color: #e9ecef;
  border: 1px solid #ced4da;
  color: #495057;
}

/* Text Colors */
.text-primary {
  color: #0d6efd !important;
}

.text-success {
  color: #198754 !important;
}

.text-info {
  color: #0dcaf0 !important;
}

.text-warning {
  color: #ffc107 !important;
}

.text-danger {
  color: #dc3545 !important;
}

.text-muted {
  color: #6c757d !important;
}

.text-dark {
  color: #212529 !important;
}

.text-light {
  color: #f8f9fa !important;
}

.text-white {
  color: #fff !important;
}

.text-black {
  color: #000 !important;
}

/* Buttons - Classic Bootstrap with Blue Theme */
.btn {
  font-weight: 500;
  border-radius: 0.375rem;
  transition: all 0.2s ease-in-out;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background-color: #0d6efd;
  border-color: #0d6efd;
  color: #fff;
}

.btn-primary:hover {
  background-color: #0b5ed7;
  border-color: #0a58ca;
  color: #fff;
}

.btn-success {
  background-color: #198754;
  border-color: #198754;
  color: #fff;
}

.btn-success:hover {
  background-color: #157347;
  border-color: #146c43;
  color: #fff;
}

.btn-warning {
  background-color: #ffc107;
  border-color: #ffc107;
  color: #000;
}

.btn-warning:hover {
  background-color: #ffca2c;
  border-color: #ffc720;
  color: #000;
}

.btn-info {
  background-color: #0dcaf0;
  border-color: #0dcaf0;
  color: #000;
}

.btn-info:hover {
  background-color: #31d2f2;
  border-color: #25cff2;
  color: #000;
}

.btn-danger {
  background-color: #dc3545;
  border-color: #dc3545;
  color: #fff;
}

.btn-danger:hover {
  background-color: #bb2d3b;
  border-color: #b02a37;
  color: #fff;
}

.btn-secondary {
  background-color: #6c757d;
  border-color: #6c757d;
  color: #fff;
}

.btn-secondary:hover {
  background-color: #5c636a;
  border-color: #565e64;
  color: #fff;
}

/* Outline Buttons */
.btn-outline-primary {
  color: #0d6efd;
  border-color: #0d6efd;
}

.btn-outline-primary:hover {
  background-color: #0d6efd;
  border-color: #0d6efd;
  color: #fff;
}

.btn-outline-success {
  color: #198754;
  border-color: #198754;
}

.btn-outline-success:hover {
  background-color: #198754;
  border-color: #198754;
  color: #fff;
}

.btn-outline-warning {
  color: #ffc107;
  border-color: #ffc107;
}

.btn-outline-warning:hover {
  background-color: #ffc107;
  border-color: #ffc107;
  color: #000;
}

.btn-outline-info {
  color: #0dcaf0;
  border-color: #0dcaf0;
}

.btn-outline-info:hover {
  background-color: #0dcaf0;
  border-color: #0dcaf0;
  color: #000;
}

.btn-outline-danger {
  color: #dc3545;
  border-color: #dc3545;
}

.btn-outline-danger:hover {
  background-color: #dc3545;
  border-color: #dc3545;
  color: #fff;
}

.btn-outline-secondary {
  color: #6c757d;
  border-color: #6c757d;
}

.btn-outline-secondary:hover {
  background-color: #6c757d;
  border-color: #6c757d;
  color: #fff;
}

/* Enhanced Alerts - Classic Bootstrap */
.alert {
  border: 1px solid transparent;
  border-radius: 0.375rem;
  font-weight: 400;
}

.alert-success {
  background-color: #d1e7dd;
  border-color: #badbcc;
  color: #0f5132;
}

.alert-success .alert-heading,
.alert-success strong {
  color: #0a3d2a;
}

.alert-danger {
  background-color: #f8d7da;
  border-color: #f5c2c7;
  color: #842029;
}

.alert-danger .alert-heading,
.alert-danger strong {
  color: #58151c;
}

.alert-info {
  background-color: #d1ecf1;
  border-color: #b8daff;
  color: #055160;
}

.alert-info .alert-heading,
.alert-info strong {
  color: #024248;
}

.alert-warning {
  background-color: #fff3cd;
  border-color: #ffecb5;
  color: #664d03;
}

.alert-warning .alert-heading,
.alert-warning strong {
  color: #523e02;
}

/* Badges - Bootstrap Classic */
.badge {
  font-weight: 600;
  border-radius: 0.375rem;
}

.badge.bg-primary {
  background-color: #0d6efd !important;
  color: #fff;
}

.badge.bg-success {
  background-color: #198754 !important;
  color: #fff;
}

.badge.bg-warning {
  background-color: #ffc107 !important;
  color: #000;
}

.badge.bg-info {
  background-color: #0dcaf0 !important;
  color: #000;
}

.badge.bg-danger {
  background-color: #dc3545 !important;
  color: #fff;
}

.badge.bg-secondary {
  background-color: #6c757d !important;
  color: #fff;
}

.badge.bg-dark {
  background-color: #212529 !important;
  color: #fff;
}

.badge.bg-light {
  background-color: #f8f9fa !important;
  color: #000;
}

/* Status Colors */
.text-low-stock {
  color: #dc3545 !important;
  font-weight: 600;
}

.text-medium-stock {
  color: #ffc107 !important;
  font-weight: 600;
}

.text-good-stock {
  color: #198754 !important;
  font-weight: 600;
}

/* Dashboard KPI Cards */
.kpi-card {
  background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
  color: #fff;
  border: none;
}

.kpi-card .card-body {
  color: #fff;
}

.kpi-card .card-body * {
  color: #fff !important;
}

.kpi-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
}

.kpi-label {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
}

/* Navigation Enhancements */
.dropdown-menu {
  border: 1px solid rgba(0,0,0,.15);
  border-radius: 0.375rem;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.175);
  background-color: #fff;
}

.dropdown-item {
  color: #495057;
}

.dropdown-item:hover, .dropdown-item:focus {
  background-color: #e9ecef;
  color: #16181b;
}

/* List Groups */
.list-group-item {
  color: #495057;
  background-color: #fff;
}

.list-group-item-action:hover {
  color: #495057;
  background-color: #f8f9fa;
}

/* Footer */
footer {
  background-color: #0d6efd;
  color: #fff;
}

footer .text-muted {
  color: rgba(255, 255, 255, 0.75) !important;
}

footer * {
  color: #fff;
}

/* Background opacity fixes */
.bg-primary.bg-opacity-10 {
  background-color: rgba(13, 110, 253, 0.1) !important;
  color: #0d6efd !important;
}

.bg-success.bg-opacity-10 {
  background-color: rgba(25, 135, 84, 0.1) !important;
  color: #198754 !important;
}

.bg-warning.bg-opacity-10 {
  background-color: rgba(255, 193, 7, 0.1) !important;
  color: #ffc107 !important;
}

.bg-info.bg-opacity-10 {
  background-color: rgba(13, 202, 240, 0.1) !important;
  color: #0dcaf0 !important;
}

.bg-danger.bg-opacity-10 {
  background-color: rgba(220, 53, 69, 0.1) !important;
  color: #dc3545 !important;
}

.bg-white.bg-opacity-10 {
  background-color: rgba(255, 255, 255, 0.1) !important;
  color: rgba(255, 255, 255, 0.9) !important;
}

/* Loading States */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .table-responsive {
    font-size: 0.875rem;
  }
  
  .btn-sm {
    font-size: 0.75rem;
  }
  
  .kpi-number {
    font-size: 2rem;
  }
}

/* Smooth page transitions */
main {
  animation: fadeIn 0.3s ease-in;
}

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

/* Small text elements */
small {
  color: #6c757d;
}

/* Code elements */
code {
  color: #e83e8c;
  background-color: #f8f9fa;
}

/* Print Styles */
@media print {
  .navbar, footer, .btn, .alert-dismissible .btn-close {
    display: none !important;
  }
  
  .card {
    box-shadow: none !important;
    border: 1px solid #dee2e6 !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
  
  .text-muted {
    color: #6c757d !important;
  }
}