/* Basic Reset */
.tool {
    font-family: 'Optima', sans-serif;
    border-radius: 50%;
    height: 400px;
    margin: auto;
    width: 600px;
    border: none !important;
}
.tool h1 {
    color: #495678;
    font-size: 30px;
    margin-top: 20px;
    padding-top: 50px;
    display: block;
    text-align: center;
    text-decoration: none;
}
.tool a {
    color: #495678;
    font-size: 30px;
    display: block;
    text-align: center;
    text-decoration: none;
    padding-top: 20px;
}
.tool form {
    width: 22vw;
    background-color: whitesmoke;
    box-shadow: 4px 4px darkgrey;
    margin: 40px auto;
    padding: 40px 0 30px 40px;
}
.tool .btn {
    outline: none;
    cursor: pointer;
    font-size: 20px;
    height: 45px;
    margin: 15px 0 5px 10px;
    padding: 5px 15px 5px 15px;
    width: 45px;
    border: none;
    font-family: matrix;
}
.tool .btn:first-child {
    margin: 5px 0 5px 10px;
}
.tool .btn, #display, form {
    border-radius: 25px;
}
#display {
    outline: none;
    background-color: #98d1dc;
    box-shadow: inset 6px 6px 0px #3facc0;
    color: whitesmoke;
    font-size: 20px;
    height: 47px;
    text-align: right;
    width: 165px;
    padding-right: 10px;
    margin-left: 10px;
    border: none;
    font-family: matrix;
    padding-top: 10px;
}
.tool .number {
    background-color: skyblue;
    box-shadow: 0 5px steelblue;
    color: whitesmoke;
}
.tool .number:active {
    box-shadow: 0 2px #5f6680;
    -webkit-transform: translateY(2px);
    -ms-transform: translateY(2px);
    -moz-tranform: translateY(2px);
    transform: translateY(2px);
}
.tool .operator {
    background-color: #dededc;
    box-shadow: 0 5px #bebebe;
    color: #72778b;
}
.tool .operator:active {
    box-shadow: 0 2px #bebebe;
    -webkit-transform: translateY(2px);
    -ms-transform: translateY(2px);
    -moz-tranform: translateY(2px);
    transform: translateY(2px);
}
.tool .other {
    background-color: #e3844c;
    box-shadow: 0 5px #e76a3d;
    color: whitesmoke;
}
.tool .other:active {
    box-shadow: 0 2px #e76a3d;
    -webkit-transform: translateY(2px);
    -ms-transform: translateY(2px);
    -moz-tranform: translateY(2px);
    transform: translateY(2px);
}

@media(max-width: 1350px) {
    .tool{
        display: none;
    }
}