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.tab-btn{border-color:#4a5568;color:#cbd5e0}.dark-theme .tab-btn.active{background-color:#3182ce;color:#fff}.dark-theme .setting-description{color:#a0aec0}.dark-theme .settings-section h3{color:#e2e8f0;border-bottom-color:#4a5568}@media (max-width: 768px){.settings-tabs{flex-direction:column}.settings-grid{grid-template-columns:1fr}.settings-actions{flex-direction:column}.save-btn,.reset-btn{width:100%}}.report-type-selector{display:flex;margin-bottom:20px;border-bottom:1px solid #e5e7eb}.report-type-selector button{padding:10px 20px;background:none;border:none;border-bottom:3px solid transparent;cursor:pointer;font-weight:500;color:#6b7280}.report-type-selector button.active{color:#2563eb;border-bottom-color:#2563eb}.report-type-selector button:hover{color:#1d4ed8}.date-filter{background:#fff;padding:20px;border-radius:8px;margin-bottom:20px;box-shadow:0 1px 3px #0000001a}.date-filter h3{margin:0 0 15px;font-size:18px}.report-content{background:#fff;padding:30px;border-radius:8px;box-shadow:0 1px 3px #0000001a}.report-header{text-align:center;margin-bottom:30px;padding-bottom:20px;border-bottom:2px solid #e5e7eb}.report-header h1{margin:0 0 10px;color:#1f2937}.report-header p{margin:5px 0;color:#6b7280}.report-section{margin:30px 0}.report-section h3{margin:0 0 20px;color:#374151;font-size:20px;padding-bottom:10px;border-bottom:1px solid #e5e7eb}.top-items-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px;margin-bottom:20px}.top-item-card{display:flex;align-items:center;background:#f9fafb;padding:15px;border-radius:8px;border-left:4px solid #2563eb}.top-item-card .rank{font-size:24px;font-weight:700;color:#2563eb;margin-right:15px;min-width:40px;text-align:center}.top-item-card .item-info h4{margin:0 0 5px;color:#1f2937}.top-item-card .item-info p{margin:3px 0;font-size:14px;color:#6b7280}.low-stock-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px;margin-bottom:20px}.stock-alert-card{background:#fffbeb;padding:15px;border-radius:8px;border-left:4px solid #f59e0b}.stock-alert-card h4{margin:0 0 10px;color:#92400e}.stock-alert-card .stock-info{font-size:14px}.stock-alert-card .stock-info p{margin:5px 0;color:#6b7280}.out-of-stock{background-color:#fef2f2}@media print{.dashboard-header,.dashboard-sidebar,.page-header,.report-type-selector,.date-filter{display:none!important}.report-content{box-shadow:none;padding:0}.dashboard-main{margin:0;padding:0}.page-container{padding:0}}.report-content{background-color:#fff;padding:20px;font-family:Helvetica,sans-serif}.report-section{margin-bottom:20mm;page-break-inside:avoid}.chart-container{position:relative;height:400px;width:100%;margin-bottom:10mm}.table-container{overflow-x:auto;margin-bottom:10mm}table{width:100%;border-collapse:collapse;font-size:12px}th,td{border:1px solid #ddd;padding:8px;text-align:left}th{background-color:#f4f4f4;font-weight:700}tr:nth-child(2n){background-color:#f9f9f9}.pagination{display:flex;justify-content:center;align-items:center;gap:10px}.loading-container{display:flex;flex-direction:column;justify-content:center;align-items:center;height:100vh;background-color:#f5f5f5}.loading-spinner{border:4px solid #f3f3f3;border-top:4px solid #3498db;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-container p{color:#666;font-size:16px}