* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root{
    --border-radius: 15px;
}


html, body{
    font-family: 'Space Mono', monospace;
    background-color: hsl(185, 41%, 84%);
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 4%;
    justify-content: center;
    align-items: center;
    position: relative;
}

.wrapper{
    width: 80%;
    margin: 0 auto;
}

.main-title{
    margin-top: -50%;
    position: absolute;
    margin-left: 0rem;
    padding-bottom: 10rem;
    color: hsl(183, 100%, 15%);
    font-weight: bolder;
}


.calc{
    width: 100%;
    background-color: hsl(0, 0%, 100%);
    padding:1.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-items: flex-start;
    align-items: center;
   
}



.calc-left, .calc-right{
    width: 50%;
    align-self: stretch;
    max-height: 100;
}
.calc-left{
    margin-top: 0.8rem;
    margin-right: 20px;
    width: 50%
        
}

.cl-input{
    margin-bottom: 2rem;
    color:  hsl(184, 14%, 56%);
    
}

.cl-inputMessage{
    display: flex;
    flex-direction: row;
    gap: 40%;
}

.cl-input label
.cl-tips-title
{
    color:hsl(184, 14%, 56%);
    font-size: 0.8rem;
    margin-bottom: 1px;
    flex: 4;
   }

.displayError{
    color:hsl(0, 100%, 50%);
    font-size: 0.8rem;
    margin-bottom: 1px;
    display: flex;
    flex: 1;
    justify-content: right;
    
}
/* .Error.hidden{
    display: visibility;
    visibility: hidden;
} */


.cl-tip.active{
    background-color: hsl(172, 67%, 45%);
    color:hsl(0, 0%, 100%);
}

.bill-input{
    width: 100%;
    display: flex;
    background-color: hsl(189, 41%, 97%);
    padding: 0.2rem 0.2rem;
    border-radius: 5px;
    border: 2px solid transparent;
}

.bill-input input{
    width: 100%;
    border: none;
    text-align: right;
    background-color: transparent;
    padding-right: 0 0 0 15px;
    font-size: 1.3rem;
    font-weight: 700;
    color: hsl(183, 100%, 15%);
}


.bill-input input:focus{
    outline: none;
}

.bill-input:hover,
.bill-input:focus-within{
    border: 2px solid hsl(172, 67%, 45%);
}

.form-input{
    width: 100%;
    display: flex;
    background-color: hsl(189, 41%, 97%);
    padding: 0.2rem 0.2rem;
    border-radius: 5px;
    border: 2px solid transparent;

}

.form-input:hover,
.form-input:focus-within{
    border: 2px solid hsl(172, 67%, 45%);
}

.form-input input.active{
    border: 2px solid hsl(0, 100%, 50%);
    border-radius: 5px;
}

.form-input input{
    width: 100%;
    border: none;
    text-align: right;
    background-color: transparent;
    padding-right: 15px;
    font-size: 1.3rem;
    font-weight: 700;
    color: hsl(183, 100%, 15%);
}
.form-input input::-webkit-input-placeholder {
    color: hsl(183, 100%, 15%);
}
.form-input input[type="number"]::-webkit-inner-spin-button,
.form-input input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}


.form-input input:focus{
    outline: none;
}

.form-input span{
    width: 21px;
    text-align: center;
    color:  hsl(185, 41%, 84%);
}

.cl-tips{
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 2rem;
    cursor: pointer;
}

.cl-tips-title{
    padding: 0 0 0.5rem;
    color:  hsl(184, 14%, 56%);
}
.cl-tip{
    background-color: hsl(183, 100%, 15%);
    color: hsl(0, 0%, 100%);
    font-weight: 700;
    font-size: 1.2rem;
    padding: 0.5rem 0rem;
    border-radius: 0.4rem;
    width: 30%;
    text-align: center;

}

.cl-tip.active {
    background-color: hsl(172, 67%, 45%);
}

.press{
    width: 100%;
    border: none;
    border-radius: 5px;
    text-align: center;
    background-color: hsl(183, 100%, 20%);
    text-transform: uppercase;
    padding: 0.5rem 2rem;
    font-size: 1.2rem;
    font-weight: 700;
    font-family: inherit;
    color: hsl(183, 100%, 15%);

}

.press.active{
    background-color: hsl(172, 67%, 45%);
}


.custom{
        background-color: hsl(189, 41%, 97%);
        color: hsl(184, 14%, 56%);
        font-weight: 700;
        font-size: 1.2rem;
        padding: 0.5rem 0rem;
        border-radius: 0.4rem;
        width: 30%;
        text-align: center;
}
.calc-right{
    width: 50%;
    background-color: hsl(183, 100%, 15%);
    padding: 2.0rem 2rem;
    border-radius: var(--border-radius);
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: space-between;

    
}

.tip{
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}


.tip-info .tip-title{
    font-size: 0.8rem;
    color: hsl(0, 0%, 100%);
}

.tip-info .tip-subtitle{
    font-size: 0.6rem;
    color: hsl(189, 41%, 97%);
}

.tip-amount{
    font-size: 2rem;
    color: hsl(172, 67%, 45%);
}

.tip-reset-btn{
    width: 100%;
    border: none;
    border-radius: 5px;
    background-color: hsl(183, 100%, 20%);
    text-transform: uppercase;
    padding: 0.5rem 1rem;
    font-size: 1.1rem;
    font-family: inherit;
    color:hsl(183, 100%, 15%);
}

@media screen and (max-width: 768px) 
{
    .wrapper{
        width: 90%;
        margin: 0 auto;
        display: flex;
        gap: 2rem;
        flex-direction: column;
    }

    .calc{
        flex-direction: column;
    }
    .calc-left,
    .calc-right{
    width: 100%;
    }

    .main-title{
    margin-top: -110%;
    position: absolute;

    }
    
    }
    
   

.attribution { 
    font-size: 11px; 
    align-items: flex-end; 
    flex-direction: column;
    font-family: inherit;
}

.attribution a { color: hsl(228, 45%, 44%); }