@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@500&display=swap');

body {
    margin: 0;
    font-family: "Open Sans", sans-serif;
    font-size: x-large;
    background-image: linear-gradient(to right, #9796f0, #fbc7d4);
}

.container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.calculator {
    width: 100%;
    max-width: 400px;
    background-color: #413543;
    color: #F0EB8D;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 1.2);
}

label {
    display: block;
    text-align: left;
    margin-left: 10px;
}

input {
    font-size: 18px;
    width: calc(100% - 20px);
    padding: 10px;
    margin: 10px 0 10px 0px;
    border-radius: 10px;
    box-sizing: border-box;
    border: 2px solid black;
    outline: none;
    transition: border-color 0.3s ease;
}

input:focus {
    border-color: violet;
}

.result {
    color: #2D2727;
    background-color: white;
    font-size: large;
    margin-top: 20px;
    padding: 3%;
    border-radius: 15px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.buttons {
    display: flex;
    align-items: center;
    justify-content: center;
}

.css-button-sliding-to-left--green {
    font-size: large;
    min-width: 130px;
    height: 40px;
    color: #ffffff;
    padding: 5px 10px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
    outline: none;
    border-radius: 5px;
    z-index: 0;
    background: #ffffff;
    overflow: hidden;
    border: 2px solid #57cc99;
    color: #57cc99;
}


.css-button-sliding-to-left--grey {
    font-size: large;
    min-width: 130px;
    height: 40px;
    color: #ffffff;
    padding: 5px 10px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
    outline: none;
    z-index: 0;
    background: #ffffff;
    overflow: hidden;
    border: 3px solid #495057;
    border-radius: 3px;
    color: #495057;
}

.css-button-sliding-to-left--grey:hover {
    color: #ffffff;
}

.css-button-sliding-to-left--grey:hover:after {
    width: 100%;
}

.css-button-sliding-to-left--grey:after {
    content: "";
    position: absolute;
    z-index: -1;
    transition: all 0.3s ease;
    left: 0;
    top: 0;
    width: 0;
    height: 100%;
    background: #495057;
}

@media (max-width: 600px) {
    .calculator{
        padding: 10px;
        max-width: 300px;
    }
    .input {
        height: 40px;
        font-size: 18px;
    }
    .buttons{
        height: 40px;
        font-size: 15px;
    }
}