.frame {
    display: inline-block;          
    padding: 20px;                   
    background: #5C3A21;            
    border: 10px solid #3D2A18;      
    box-shadow: 
        inset 0 0 10px rgba(0,0,0,0.4), 
        0 8px 20px rgba(0,0,0,0.5);     
    border-radius: 8px;             
    position: relative;
}

.frame::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border: 4px solid #A67C52;       
    pointer-events: none;
}