*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
body{
    background:rgb(60 122 223);
}
.container{
    width: 100%;
    height: 100vh;
    background: rgb(60 122 223);
    color: #6c2726;
}
.title {
    width: 100%;
    height: 10vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.title h1{
    font-size: 25px;
    color:#fff;
}
.contents{
    width: 100%;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 2em 0;
}
.tip{
    width: 350px;
    padding: 2em;
    background: #f6f9fc;
    border-radius: 5px;
}
.tip h1{
    font-size: 17px;
}
.bill-dollar{
    display: flex;
    align-items: center;
    padding: 0 0 1em 0;
}
.bill-dollar p{
    padding: 0 0.5em 0 0;
    font-weight: bold;
}
.bill-dollar input{
    width: 150px;
    height: 40px;
    border: none;
    outline: none;
    box-shadow: 0 2px 4px rgb(50 50 93 / 10%);
    padding: 0 0.5em;
    font-size: 16px;
    margin: 0.5em 0 0 0;
    border-radius: 5px;
    border-left: 3px solid rgb(60 122 223);
}
.range-service{
    padding: 0 0 1em 0;
    display: flex;
    align-items: center;
}
.range-service input{
    margin: 0 0.5em 0 0;
    border-radius: 5px;
}
.range-service p{
    padding: 0 0 0 0.5em;
    font-weight: bold;
}
.people{
    display: flex;
    align-items: center;
}
.people input{
    width: 150px;
    height: 40px;
    border: none;
    outline: none;
    box-shadow: 0 2px 4px rgb(50 50 93 / 10%);
    padding: 0 0.5em;
    font-size: 16px;
    margin: 0.5em 0 0 0;
    border-radius: 5px;
    border-left: 3px solid rgb(60 122 223);
}
.people p{
    padding: 0 0 0 0.5em;
    font-weight: bold;
}
.btn{
    padding: 1.5em 0 0 0;
}
.btn button{
    width: 100px;
    height: 40px;
    background: #6c2726;
    border: none;
    outline: none;
    color: #fff;
    margin: 0 1em 0 0;
    border-radius: 5px;
    cursor: pointer;
}
button:focus, input:focus{
    border: 3px solid rgb(60 122 223);
}
.amount{
    padding: 1em;
    border: 0.1em solid #6c2726;
    margin: 1.5em 0 0 0;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    border-radius: 5px;
}
.amount h3{
    text-transform: uppercase;
    font-size: 16px;
}
.amount h1{
    font-size: 25px;
}
.amount p{
    font-size: 16px;
    font-weight: bold;
}
.err{
    width: 350px;
    height: 5vh;
    background: #f94348;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
    padding: 0 1em;
    border-radius: 5px;
    margin: 0 0 0.3em 0;
    display: none;
}
.err p{
    color: #fff;
    font-weight: 500;
}
@media (max-width: 500px) {
    .contents{
        padding: 2em;
    }
    .tip{
        width: 100%;
    }
    .err{
        width: 100%;
    }
}