:root{
    --background-color: #f6f6f6;
    --vigo-color: crimson;
    --slider-color: #A3A3A3;
    --input-number-color: #EBEBEB;
}

*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body{
    display: flex;
    justify-content: center;
    align-items: center;
    font-family:'Roboto', sans-serif;
}
.space{
    padding-top: 15px;
}
.bmi-calculator{
    border: 5px solid white;
    border-radius: 10px;
    padding: 3em;
    margin: 2em;
    height: 520px;
    background-color: white;
}

.bmi-calculator-weight, .bmi-calculator-height{
    margin-bottom: 2.2em;
    width: 100%
}
.weight-slider, .height-slider{
    width: 100%;
    height: 1px;
    border-radius: 10px;
    background-color: var(--slider-color);
    outline: none;
}
input[type=range]{
    -moz-appearance: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}
input[type=range] :focus{
    outline: none;
}
input[type=range] ::-ms-track{
    width: 100%;
    cursor: pointer;
}
.btn{
    text-align: center;
    font-size: 1em;
    color: white;
    width: 100%;
    margin-bottom: 10px;
    padding: 11px 32px;
    transition: .2s;
    border: none;
    background-color: var(--vigo-color);
    text-transform: uppercase;
    cursor: pointer;
}
.btn:hover{
    opacity: .8;
}
.evaluation-message{
    margin: 10px 0;
}
