.buttons {
    display:grid;
    grid-template-columns: repeat(4, 1fr);
    gap:1px;
}
/*
.=class
#=id
nothing=element
*=everything

*/
*{
    font-family: Arial, Helvetica, sans-serif;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body{
    background-color: aliceblue;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.calculator {
    background-color: rgb(165, 194, 249);
    border-radius: 10px;
    width: 300px;
    box-shadow: 0px 5px 15px 0px #000000;
    overflow: hidden;
}

.display{
    background-color: rgb(192, 236, 255);
    font-weight: 2.5rem;
    text-align: right;
    padding: 20px;
    height: 80px;
    overflow: hidden;
}

button{
    border: none;
    font-size: 1.5rem;
    height: 60px;
    background-color: rgb(213, 254, 255);
    color: rgb(74, 74, 255);
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover{
    background-color: aquamarine;
}

.operator {
    background-color: rgb(155, 255, 255);
}

.operator:hover{
    background-color:rgb(185, 253, 255)
    
}

.equals {
    background-color: rgb(41, 221, 221);
}

.operator:hover {
    background-color: rgb(41, 221, 221);
}

.clear{
    background-color: blue;
    color: #000000;
}
.clear:hover{
    background-color: beige;
}

.title{
    text-align: center;
    color:white;
    background-color: rgb(196, 212, 255);
    padding: 10px;
    font-size: 1.2rem;
}