@font-face {
    font-family: 'Roboto';
    src: url('./fonts/Font_Roboto.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

body {
    display: flex;
    flex-direction: column;
    height: 100vh;
    font-family: Roboto, 'sans-serif';
    font-weight: 400;
    scroll-behavior: smooth;
    margin: 0;
    padding: 0;
}

button {
    font-family: Roboto, 'sans-serif';
}

.header__info {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 100px;
    margin-bottom: 100px;
}

h2 {
    font-size: 35px;
}

.main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

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

.main__field-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #000;
    width: 310px;
    border-radius: 15px;
    margin-bottom: 10px;
}

.main__field-text, input {
    background-color: #000;
    color: #fff;
    border: none;
    cursor: default;
    width: 100%;
    height: 50px;
    border-radius: 15px;
    font-size: 30px;
    padding-left: 15px;
    box-shadow: 12px 12px 8px 0px rgba(0, 0, 0, 0.2);
}

input:focus {
    outline: none;
}

.main__calculator {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(5, 60px);
    gap: 10px;
    padding: 20px;
    background-color: #000;
    border-radius: 15px;
    width: 270px;
    box-shadow: 12px 12px 8px 0px rgba(0, 0, 0, 0.2);
}

.main__btn--buttons {
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: 23px;
    transition: 0.3s;
}

.main__btn--buttons:hover {
    background-color: #D3D3D3;
    transition: 0.3s;
}

.main__btn--buttons--darkgray--zero {
    grid-column: span 2;
    border-radius: 35px;
}

.main__btn--buttons--silver {
    background-color: #C0C0C0;
}

.main__btn--buttons--darkgray {
    background-color: #696969;
    color: #fff;
}

.main__btn--buttons--orange {
    background-color: #FFA500;
    color: #fff;
}

.footer {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 120px;
}