#backToTop {
    position: fixed;
    bottom: 25px; 
    right: 25px;  
    z-index: 9999; 
    width: 50px;
    height: 50px;
    border: none;
    outline: none;
    border-radius: 50%;

    background-color: #000000; 
    color: #ffe876;
    
    display: flex;
    align-items: center;
    justify-content: center;
    
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    font-size: 26px;
    
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    opacity: 0;
    transform: translateY(15px);
    pointer-events: none;
}

#backToTop.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

#backToTop:hover {
    background-color: #ffe876; 
    color: #000000;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(-4px); 
}

#backToTop:active {
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    #backToTop {
        bottom: 15px; 
        right: 15px;
        width: 42px;  
        height: 42px;
        font-size: 22px; 
        background-color: rgba(0, 0, 0, 0.8); 
    }

    #backToTop:hover {
        background-color: rgba(0, 0, 0, 0.8);
        color: #ffe876;
        transform: none;
    }
    
    #backToTop:active {
        transform: scale(0.95);
        background-color: #ffe876;
        color: #000;
    }
}