* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
body {
    background-color: #e5e5f7;
    background-image: radial-gradient(#444cf7 0.8px, #e5e5f7 0.8px);
    background-size: 16px 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height : 100vh;
    padding: 1rem;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.container {
    padding: 1rem;
    background: #e5e5f7;
    border-color: #444cf7;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 600px;
    overflow: hidden;
    position: relative;
}
.header {
    text-align: center;
    color:#002244;
}

.ht-wt-btn-container {
    align-self: center;
    justify-self: center;
    margin: 2rem;
    font-size: large;
}
#label-height{
    margin-left: 0.2rem;
}
.btn-container{
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1rem;
}
.calculate-btn {
    border: none;
    border-radius: 8px;
    border-color: black;
    box-shadow: 0px 1px 10px 1px rgba(34,95,235,0.2);
    padding: 0.5rem;
    margin-top: 1.5rem;
    cursor: pointer;
    position: absolute;
}
.calculate-btn:hover{
    
    border: 5px solid rgba(34,95,235,0.2);
    border-radius: 8px;
    transition: all ease-out 0.2s;
}

#result-btn {
    text-align: center;
    padding-top: 1rem;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.bmi-guide,
.bmi-guide-heading {
    justify-self: center;
}
.weight-guide{
    margin-top: 5px;
    margin-bottom: 5px;
}
.weight-guide.active{
    border: 1px solid #002244;
    border-radius: 5px;
    box-shadow: 1px 2px 4px#444cf7;
}

/* responsive and shii */
input[type="number"]{
    width: 100%;
    padding: 0.6rem 0.75rem;
    margin-top: 0.35rem;
    margin-bottom: 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    background: #fff;
}

label{
    display: block;
}

@media (max-width: 480px){
    .container{
        padding: 0.75rem;
    }
    .ht-wt-btn-container{
        margin: 1rem;
        font-size: medium;
    }
    .calculate-btn{
        width: 35%;
    }
    .bmi-guide-heading{
        text-align: center;
    }
}