/* Responsive design styles */
.reset-btn {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 1.1em;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
    display: none;
}

.reset-btn.show {
    display: block;
    animation: slideInLeft 0.5s ease;
}

.reset-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 40px rgba(0,0,0,0.4);
}

@media (max-width: 768px) {
    h1 { 
        font-size: 2em; 
    }
    
    .stat-value { 
        font-size: 1.5em; 
    }
    
    .upload-area { 
        padding: 40px 15px; 
    }
    
    .table-controls {
        justify-content: center;
    }
    
    .control-btn {
        font-size: 0.8em;
        padding: 6px 12px;
    }
    
    .table-wrapper {
        max-height: 400px;
    }
    
    .transaction-type {
        font-size: 0.75em;
    }
    
    .filter-header {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .filter-row {
        flex-direction: column;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-stats {
        width: 100%;
        justify-content: center;
        margin-top: 10px;
        text-align: center;
    }
    
    .date-shortcuts {
        width: 100%;
        justify-content: space-between;
    }
    
    .shortcut-btn {
        flex: 1;
    }
    
    .filter-tip {
        display: none;
    }
    
    .simulation-panel {
        grid-template-columns: 1fr;
    }
}