:root{--primary-color:#4a9eff;--secondary-color:#26a69a;--success-color:#4caf50;--danger-color:#ef5350;--warning-color:#ffb74d;--bg-primary:#ffffff;--bg-secondary:#f5f7fa;--text-primary:#2c3e50;--text-secondary:#7f8c8d;--border-color:#e8f0f5;--shadow:0 2px 8px rgba(74, 158, 255, 0.08);--transition:all 0.3s ease;}
body.dark-mode{--bg-primary:#1a2332;--bg-secondary:#243447;--text-primary:#ecf0f1;--text-secondary:#95a5a6;--border-color:#34495e;}
*{margin:0;padding:0;box-sizing:border-box;}
html,body{font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;background-color:var(--bg-secondary);color:var(--text-primary);line-height:1.6;transition:var(--transition);}
@media (max-width: 1200px){.main-container{grid-template-columns:1fr !important;}.sidebar-left{grid-column:1 / -1 !important;}}
@media (max-width: 768px){.header{padding:0.75rem 1rem !important;}.header-content h1{font-size:1.2rem !important;}.toolbar{padding:0.75rem 1rem !important;flex-wrap:wrap !important;gap:1rem !important;}.toolbar-section{flex:1 !important;justify-content:center !important;}.control-row{flex-direction:column !important;align-items:stretch !important;gap:0.75rem !important;}.filter-group{width:100% !important;}.search-input,.category-filter,.tag-filter,.sort-select,.page-size-select{width:100% !important;}.btn-batch-export{margin-left:0 !important;margin-top:0.5rem !important;width:100% !important;}.expense-item{flex-direction:column !important;align-items:flex-start !important;gap:0.75rem !important;}.expense-item-right{width:100% !important;justify-content:space-between !important;}.pagination-buttons{justify-content:center !important;}.chart-container{grid-template-columns:1fr !important;}}
@media print{.header,.toolbar-wrapper,.sidebar-left,.tabs,.list-controls,.pagination,.btn-edit,.btn-delete,.item-checkbox,.list-header{display:none !important;}.main-container{grid-template-columns:1fr !important;gap:0 !important;padding:0 !important;}.main-content{box-shadow:none !important;border:none !important;}.expense-list{padding:0 !important;}}