* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: 0;
}

body {
    background-color: #FFF5EE;
    height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
}

.container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.container h1 {
    font-family: 'Bungee', Arial, Helvetica, sans-serif;
    font-size: 40px;
    font-weight: bold;
    color: #8F9EE0;
    margin-bottom: 25px;
}

.calculadora-box {
    background-color: #C0C0C0;
    width: 100%;
    max-width: 450px;
    height: 650px;
    border-radius: 25px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    border: 2px solid #000000;
    box-shadow: -14px 15px 0 #C0C0C0, -16px 17px 0 #000000;
}

.visor {
    width: 100%;
    max-width: 400px;
}

.visor input {
    min-width: 100%;
    height: 100px;
    border-radius: 25px;
    border: 0;
    background-color: #FFFFFF;
    margin: 25px 0;
    text-align: end;
    font-weight: bold;
    font-size: 25px;
    padding: 10px;
    border: 1px solid #000000;
    border-top: 4px solid #000000;
    border-right: 4px solid #000000;
}

.botoes {
    width: 100%;
    max-width: 400px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 10px;
}

.botao-zero {
    grid-column: span 2;
    grid-row: span 1;
}

.botoes button {
    height: 80px;
    border-radius: 25px;
    background-color: #8F9EE0;
    font-size: 20px;
    font-weight: bold;
    color: aliceblue;
    border: 2px solid #000000;
    cursor: pointer;
    transition: 0.1s;
    box-shadow: -2px 3px 0 #8F9EE0, -4px 5px 0 #000000;
}

.botoes button:hover {
    background-color: #7a8bcf;
    border-top: 4px solid #000000;
    border-right: 4px solid #000000;
    border-bottom: 2px solid #000000;
    border-left: 2px solid #000000;
    color: #dadada;
    box-shadow: none;
    transform: translateX(-4px);
}


/* RESPONSIVIDADE */
@media (max-width: 550px) {
    .container h1 {
        font-size: 29px;
    }

    .calculadora-box {
        width: 80%;
        height: 550px;
    }

    .visor {
        width: 95%;
        margin: 0 auto;
    }

    .visor input {
        width: 100%;
    }

    .botoes button {
        height: 60px;
        border-radius: 17px;
    }
}

@media (max-width: 400px) {
    .container h1 {
        font-size: 25px;
    }

    .calculadora-box {
        width: 85%;
        height: 500px;
    }

    .visor input {
        height: 80px;
    }

    .botoes button {
        height: 55px;
    }
}

@media (max-width: 355px) {
    .container h1 {
        font-size: 20px;
    }

    .visor input {
        height: 75px;
    }

}