/* E-Bike Inventory Management CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    background: white;
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.header h1 {
    color: #2d3748;
    font-size: 2.5rem;
    font-weight: 700;
}

.header-actions {
    display: flex;
    gap: 15px;
}



/* Controls Section */
.controls {
    background: white;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.controls-row {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.search-box, .filter-select {
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: white;
}

.search-box:focus, .filter-select:focus {
    outline: none;
    border-color: #476bad;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-box {
    flex: 1;
    min-width: 300px;
}

.filter-select {
    min-width: 150px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: #476bad;
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: #6b7280;
    color: white;
}

.btn-secondary:hover {
    background: #4b5563;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(107, 114, 128, 0.3);
}

.btn-success {
    background: #059669;
    color: white;
}

.btn-success:hover {
    background: #047857;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(5, 150, 105, 0.3);
}

.btn-warning {
    background: #d97706;
    color: white;
}

.btn-warning:hover {
    background: #b45309;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(217, 119, 6, 0.3);
}

.btn-danger {
    background: #dc2626;
    color: white;
}

.btn-danger:hover {
    background: #b91c1c;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

/* Table Styles */
.table-container {
    background: white;
    border-radius: 12px;
    overflow: visible;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.inventory-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.inventory-table th {
    background: linear-gradient(135deg, #f8fafc 0%, #edf2f7 100%);
    padding: 18px 15px;
    text-align: left;
    font-weight: 600;
    color: #2d3748;
    border-bottom: 2px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.inventory-table td {
    padding: 15px;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: middle;
}

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

.inventory-table tbody tr:hover:not(.group-spacer) {
    background-color: #f0f7ff !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Stock Status Badges */
.stock-status {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stock-good {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.stock-low {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.stock-out {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Status Badges */
.status-badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
}

.status-active {
    background: #d1fae5;
    color: #065f46;
}

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

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

/* Featured Badge */
.featured-badge {
    background: #fef3c7;
    color: #92400e;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.not-featured {
    color: #9ca3af;
    font-style: italic;
}

/* 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);
    backdrop-filter: blur(4px);
    overflow-y: auto;
    padding: 20px 0;
}

.modal-content {
    background-color: white;
    margin: 0 auto;
    padding: 0;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: modalSlideIn 0.3s ease;
    position: relative;
    min-height: auto;
    max-height: calc(100vh - 40px);
    display: flex;
    flex-direction: column;
}

.large-modal {
    max-width: 1000px;
}

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

.modal-header {
    padding: 25px 30px 0;
    border-bottom: none;
    flex-shrink: 0;
}

.modal-header h2 {
    color: #2d3748;
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-body {
    padding: 25px 30px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 0 30px 25px;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    flex-shrink: 0;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    color: #718096;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s ease;
}

.close:hover {
    color: #2d3748;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #374151;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: #476bad;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* Checkbox Styles */
.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    color: #374151;
}

.checkbox-label input[type="checkbox"] {
    margin-right: 12px;
    width: 18px;
    height: 18px;
    accent-color: #476bad;
}

/* Management Container Styles */
.management-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    min-height: 500px;
}

.management-form {
    padding: 20px;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.management-form h3 {
    margin-bottom: 20px;
    color: #2d3748;
    font-size: 1.2rem;
}

.management-list {
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.management-list h3 {
    margin-bottom: 20px;
    color: #2d3748;
    font-size: 1.2rem;
}

.items-list {
    max-height: 400px;
    overflow-y: auto;
}

.item-card {
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    transition: background-color 0.2s ease;
}

.item-card:hover {
    background: #f3f4f6;
}

.item-info h4 {
    margin-bottom: 8px;
    color: #1f2937;
    font-size: 1rem;
}

.item-info p {
    margin-bottom: 4px;
    color: #6b7280;
    font-size: 0.875rem;
}

.item-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

/* Alerts */
.alert {
    padding: 16px 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    font-weight: 500;
    border-left: 4px solid;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border-left-color: #10b981;
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
    border-left-color: #ef4444;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border-left-color: #f59e0b;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border-left-color: #3b82f6;
}

/* Dropdown Styles */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 6px;
    transition: background-color 0.2s ease;
    font-size: 1.2rem;
    color: #6b7280;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
}

.dropdown-toggle:hover {
    background-color: #f3f4f6;
    color: #374151;
}

.dropdown-toggle:focus {
    outline: none;
    background-color: #e5e7eb;
}

.dots {
    font-weight: bold;
    line-height: 1;
    transform: rotate(90deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    z-index: 1000;
    min-width: 160px;
    padding: 6px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 10px 16px;
    border: none;
    background: none;
    text-align: left;
    font-size: 0.875rem;
    color: #374151;
    cursor: pointer;
    transition: background-color 0.2s ease;
    text-decoration: none;
}

.dropdown-item:hover {
    background-color: #f3f4f6;
    color: #1f2937;
}

.dropdown-item.danger {
    color: #dc2626;
}

.dropdown-item.danger:hover {
    background-color: #fef2f2;
    color: #b91c1c;
}

.item-icon {
    margin-right: 8px;
    font-size: 0.875rem;
    width: 16px;
    display: inline-block;
}

.dropdown-divider {
    height: 1px;
    background-color: #e5e7eb;
    margin: 6px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .header-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .controls-row {
        flex-direction: column;
    }
    
    .search-box {
        min-width: 100%;
    }
    
    .inventory-table {
        font-size: 0.875rem;
    }
    
    .inventory-table th,
    .inventory-table td {
        padding: 10px 8px;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .management-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #476bad;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Enhanced hover effects for grouped products */
.inventory-table tbody tr:hover:not(.group-spacer) {
    background-color: #f0f7ff !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Group spacing row */
.group-spacer {
    height: 20px;
    background: transparent !important;
}

.group-spacer td {
    border: none !important;
    padding: 0 !important;
    background: transparent !important;
}

.group-spacer:hover {
    background: transparent !important;
    transform: none !important;
    box-shadow: none !important;
}

/* Image Upload Styles */
.image-upload-container {
    border: 2px dashed #e2e8f0;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    background: #fafafa;
    transition: border-color 0.2s ease;
}

.image-upload-container:hover {
    border-color: #667eea;
    background: #f8faff;
}

.image-preview {
    margin-bottom: 15px;
}

.image-placeholder {
    cursor: pointer;
    padding: 40px 20px;
    transition: all 0.2s ease;
}

.image-placeholder:hover {
    background: #f0f7ff;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 10px;
    color: #9ca3af;
}

.upload-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 5px;
}

.upload-subtext {
    font-size: 0.9rem;
    color: #6b7280;
}

.image-actions {
    gap: 10px;
    justify-content: center;
    margin-top: 10px;
}