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

body{
    background-color: #f4f6f8;
    color: #000000;
    font-family: sans-serif;

    display: flex;
    justify-content: center;
    align-items: center;

    min-height: 100vh;

}

.calculator{
    background-color: #ffffff;
    padding: 30px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

/* Title */
h1{
    text-align: center;
    margin-bottom: 25px;
}
/* Inputs */
input{
    width: 100%;
    margin-bottom: 12px;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 16px;
}

/* Buttons container */
.buttons{
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 8px;
    margin-top: 10px;
}

/* Buttons */
button{
    padding: 14px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

/* Button hover */
button:hover{
    opacity: 0.8;
}
/* Result */
#result{
    margin-top: 25px;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
}

.clear{
display: flex;
justify-content: space-around;
margin-top: 15px;
text-align: center;

}