button {
    position: relative;
    border: none;
    background: transparent;
    padding: 0;
    cursor: pointer;
    outline-offset: 4px;
    transition: filter 250ms;
    user-select: none;
    touch-action: manipulation;
   }
   
   .shadow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: hsl(0deg 0% 0% / 0.25);
    will-change: transform;
    transform: translateY(2px);
    transition: transform
       600ms
       cubic-bezier(.3, .7, .4, 1);
   }
   
   .edge {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: linear-gradient(
       to left,
       hsl(340deg 100% 16%) 0%,
       hsl(340deg 100% 32%) 8%,
       hsl(340deg 100% 32%) 92%,
       hsl(340deg 100% 16%) 100%
     );
   }
   
   .front {
    display: block;
    position: relative;
    padding: 12px 27px;
    border-radius: 12px;
    font-size: 1.1rem;
    color: white;
    background: hsl(345deg 100% 47%);
    will-change: transform;
    transform: translateY(-4px);
    transition: transform
       600ms
       cubic-bezier(.3, .7, .4, 1);
   }
   
   button:hover {
    filter: brightness(110%);
   }
   
   button:hover .front {
    transform: translateY(-6px);
    transition: transform
       250ms
       cubic-bezier(.3, .7, .4, 1.5);
   }
   
   button:active .front {
    transform: translateY(-2px);
    transition: transform 34ms;
   }
   
   button:hover .shadow {
    transform: translateY(4px);
    transition: transform
       250ms
       cubic-bezier(.3, .7, .4, 1.5);
   }
   
   button:active .shadow {
    transform: translateY(1px);
    transition: transform 34ms;
   }
   
   button:focus:not(:focus-visible) {
    outline: none;
   }

.fyffwSvg {
    display: none;
}     

.fyffwSvgRuler {
    display: none;
}    

#lengthDiv, #weightDiv, #sizeDiv, #finalDiv {
    margin-top: 20px;
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    background-color: #f5f5f5;
    display: none; 
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

#lengthDiv.active, #weightDiv.active, #sizeDiv.active, #finalDiv.active {
    display: block; 
}

#lengthDiv label,
#weightDiv label,
#sizeDiv label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #333;
    font-size: 14px;
}

#lengthDiv input[type="number"],
#weightDiv input[type="number"],
#sizeDiv select {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    background-color: #fff;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
    transition: border-color 0.3s ease;
    line-height: 1.5; 
    height: auto; 
}

#lengthDiv input[type="number"]:focus,
#weightDiv input[type="number"]:focus,
#sizeDiv select:focus {
    border-color: #4CAF50;
    outline: none;
}

#lengthDiv button,
#weightDiv button,
#sizeDiv button,
#finalDiv button {
    display: block;
    position: relative;
    padding: 12px 27px;
    border-radius: 12px;
    font-size: 1.1rem;
    color: white;
    background: hsl(345deg 100% 47%);
    will-change: transform;
    transform: translateY(-4px);
    transition: transform
       600ms
       cubic-bezier(.3, .7, .4, 1);
}

#lengthDiv button:hover,
#weightDiv button:hover,
#sizeDiv button:hover,
#finalDiv button:hover {
    filter: brightness(110%);
}

#sizeDiv h3,
#finalDiv h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
    font-weight: normal;
}

#finalSize {
    font-size: 22px;
    color: #4CAF50;
    font-weight: bold;
}

#lengthDiv {
    display: none;
}

#weightDiv {
    display: none;
}

#sizeDiv {
    display: none;
}

#finalDiv {
    display: none;
}