*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: calibri ;

}

html{
    font-size: 62.5%;

}

.container {
    width: 100%;
    height: 100vh;
    background-color: #12121f;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    
}

.calendar{
    width: 45rem;
    height: 52rem;
    background-color: #201f1f;
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
    
}

.month {
    width: 100%;
    height: 12rem;
    background-color: #167e56;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    text-align: center;
    text-shadow: 0 0.3rem 0.5rem rgba (0,0,0,0.5);
}

.month i {
    font-size: 2.5rem;
    cursor: pointer;
}

.month h1{
    font-size: 3.5rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: spacing 0.2rem;
    margin-bottom: 1rem;
}

.month p {
    font-size: 1.6rem;
}

.weekdays  {
    width: 100%;
    height: 5rem;
    padding: 0 0.4rem;
    display: flex;
    align-items: center;

}

.weekdays div{
    font-size: 2rem;
    font: weigth 400;
    letter-spacing: 0.1rem;
    width:calc(44.2rem/7);
    padding-left:1.8rem;
    justify-content: center;
    align-items:center;

}

.days {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    padding: 0.2rem;

}

.days div{
    font-size: 1.4rem;
    margin: 0.3rem;
    width:calc(40.2rem/7);
    height: 5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.2s;

}

.days div:hover:not(today) {
    background-color: #201f1f;
    border: 0.2rem solid #777;
    cursor: pointer;
}

.prev-date,
.next-date {
    opacity: 0.5;
}

.today {
    background-color: #167e56;
}