body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.canvas-container {
    border: 1px solid #ddd;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.card {
    border-radius: 10px;
}

.btn {
    border-radius: 5px;
}

.list-group-item.active {
    background-color: #4a90e2;
    border-color: #4a90e2;
}

/* Mobile Touch Improvements */
@media (max-width: 768px) {
    .btn-sm {
        padding: 0.5rem 0.75rem; /* Increase padding */
        font-size: 0.9rem; /* Increase font size slightly */
    }
    
    .list-group-item {
        padding: 0.75rem 1rem;
    }
    
    input[type="range"] {
        height: 1.5rem; /* Easier to grab */
    }
    
    /* Ensure offcanvas body has enough padding */
    .offcanvas-body {
        padding-bottom: 80px; /* Space for bottom scroll */
    }
}