/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
.main-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.main-header h1 {
    font-size: 2.5rem;
    font-weight: 300;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

/* Admin Header */
.admin-header {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.admin-header h1 {
    font-size: 1.8rem;
    font-weight: 400;
}

.admin-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.admin-nav span {
    margin-right: 1rem;
    font-weight: 500;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background-color: #007bff;
    color: white;
}

.btn-primary:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: #545b62;
}

.btn-secondary.active {
    background-color: #495057;
}

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

.btn-danger:hover {
    background-color: #c82333;
}

.btn-admin {
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white;
    border: none;
}

.btn-admin:hover {
    background: linear-gradient(45deg, #ee5a24, #ff6b6b);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

/* Search Section */
.search-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.search-container {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    align-items: center;
}

.search-input {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: #007bff;
}

.filter-container {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.category-select {
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    font-size: 1rem;
    background-color: white;
}

/* Products Section */
.products-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e9ecef;
}

.products-header h2 {
    color: #333;
    font-weight: 400;
}

.view-toggle {
    display: flex;
    gap: 0.5rem;
}

/* Grid View */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.product-card {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 10px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.product-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.product-header h3 {
    color: #333;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
    flex: 1;
}

.category-badge {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.product-prices {
    margin-bottom: 1rem;
}

.price-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f8f9fa;
}

.price-item label {
    font-weight: 500;
    color: #666;
}

.price {
    font-weight: 600;
    color: #333;
}

.selling-price {
    color: #28a745;
    font-size: 1.1rem;
}

.dozen-price {
    color: #17a2b8;
}

.product-stock {
    margin-bottom: 1rem;
    padding: 0.5rem;
    background-color: #f8f9fa;
    border-radius: 5px;
}

.stock-label {
    font-weight: 500;
    color: #666;
}

.stock-value {
    font-weight: 600;
    color: #28a745;
}

.low-stock {
    color: #dc3545 !important;
}

.product-description {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Table View */
.products-table-container {
    overflow-x: auto;
}

.products-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.products-table th,
.products-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.products-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #333;
    position: sticky;
    top: 0;
}

.products-table tbody tr {
    transition: background-color 0.2s ease;
}

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

.product-name {
    font-weight: 600;
    color: #333;
}

.category {
    color: #666;
}

.stock {
    font-weight: 600;
}

.actions {
    display: flex;
    gap: 0.5rem;
}

/* Loading and No Results */
.loading-spinner {
    text-align: center;
    padding: 3rem;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.no-results {
    text-align: center;
    padding: 3rem;
    color: #666;
    font-size: 1.1rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    color: #666;
    transition: color 0.3s ease;
}

.close:hover {
    color: #333;
}

/* Product Detail Modal */
.price-details {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
}

.price-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid #e9ecef;
}

.price-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.price-label {
    font-weight: 500;
    color: #666;
}

.price-value {
    font-weight: 600;
    color: #333;
}

.product-full-description {
    margin: 1.5rem 0;
}

.product-full-description p {
    margin-top: 0.5rem;
    line-height: 1.6;
    color: #666;
}

.product-meta {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e9ecef;
    color: #666;
    font-size: 0.9rem;
}

/* Admin Panel Styles */
.admin-container {
    min-height: 100vh;
    background-color: #f8f9fa;
}

.admin-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 2rem;
}

.admin-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.admin-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-controls input {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    width: 250px;
}

.search-controls select {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: white;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #007bff;
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: #666;
    font-size: 0.85rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #e9ecef;
}

/* Login Form */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-form {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
    font-weight: 400;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 0.75rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    border: 1px solid #f5c6cb;
}

.demo-credentials {
    background-color: #d1ecf1;
    color: #0c5460;
    padding: 1rem;
    border-radius: 5px;
    margin-top: 1rem;
    border: 1px solid #bee5eb;
    font-size: 0.9rem;
}

.demo-credentials p {
    margin: 0.25rem 0;
}

.back-link {
    display: inline-block;
    margin-top: 1rem;
    color: #007bff;
    text-decoration: none;
    font-size: 0.9rem;
}

.back-link:hover {
    text-decoration: underline;
}

/* Notifications */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 5px;
    color: white;
    font-weight: 500;
    z-index: 1001;
    animation: slideInRight 0.3s ease;
}

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

.notification.success {
    background-color: #28a745;
}

.notification.error {
    background-color: #dc3545;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .main-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .main-header h1 {
        font-size: 2rem;
    }
    
    .search-container {
        flex-direction: column;
    }
    
    .filter-container {
        flex-direction: column;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-controls {
        flex-direction: column;
        gap: 1rem;
    }
    
    .search-controls {
        flex-direction: column;
        width: 100%;
    }
    
    .search-controls input {
        width: 100%;
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .products-table {
        font-size: 0.8rem;
    }
    
    .products-table th,
    .products-table td {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    .main-header h1 {
        font-size: 1.5rem;
    }
    
    .search-section,
    .products-section {
        padding: 1rem;
    }
    
    .product-card {
        padding: 1rem;
    }
    
    .login-form {
        padding: 2rem;
        margin: 1rem;
    }
}