html {
  font-size: 14px;
  position: relative;
  min-height: 100%;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

:root {
  --primary-color: #007aff;
  --secondary-color: #000;
  --accent-color: #333;
}

.logo {
  max-width: 250px;
}

.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 var(--primary-color);
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background-color: #0051a8;
  border-color: #0051a8;
}

.text-primary {
  color: var(--primary-color) !important;
}

.navbar-brand {
  font-weight: bold;
  color: var(--primary-color) !important;
  font-size: 1.5rem;
}

.cart-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: #dc3545;
  color: white;
  border-radius: 50%;
  padding: 2px 6px;
  font-size: 0.75rem;
  font-weight: bold;
}

.hero-section {
  background: linear-gradient(135deg, #667eea 0%, #11e 100%);
  color: white;
}

.hero-section h1 {
  font-weight: 700;
}

.product-card {
  transition: all 0.3s ease;
  border: 1px solid #e0e0e0;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  border-color: var(--primary-color);
}

.product-card .card-img-top {
  height: 250px;
  object-fit: cover;
}

.navbar {
  padding: 1rem 0;
}

.navbar .nav-link {
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: color 0.3s ease;
}

.navbar .nav-link:hover {
  color: var(--primary-color) !important;
}

footer {
  margin-top: auto;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(0, 122, 255, 0.25);
}

.page-item.active .page-link {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.page-link {
  color: var(--primary-color);
}

.page-link:hover {
  color: #0051a8;
}

.badge {
  padding: 0.35em 0.65em;
}

.breadcrumb-item a {
  color: var(--primary-color);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.list-group-item.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.dropdown-menu {
  border: 1px solid #e0e0e0;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.dropdown-item:hover {
  background-color: #f8f9fa;
  color: var(--primary-color);
}

.alert-info {
  background-color: #e7f3ff;
  border-color: #b3d9ff;
  color: #004085;
}

.table {
  border-color: #dee2e6;
}

.table thead th {
  border-bottom: 2px solid #dee2e6;
  font-weight: 600;
}

.card {
  border: 1px solid #e0e0e0;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.card-header {
  font-weight: 600;
}

input[type="file"] {
  padding: 0.375rem 0.75rem;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  background-color: rgba(0,0,0,0.5);
  border-radius: 50%;
  padding: 20px;
}

@media (max-width: 767px) {
  .hero-section h1 {
    font-size: 2rem;
  }
  
  .navbar-brand {
    font-size: 1.2rem;
  }
  
  .product-card .card-img-top {
    height: 200px;
  }
}