@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body{
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(45deg, #0a0a0a, #3a4452);
}

.calculator{
    background: transparent;
    border: 1px solid #717377;
    box-shadow: 0 3px 15px rgba(113,115,119,0.5);
    padding: 20px;
    border-radius: 16px;
}

input{
    width: 320px;
    border: none;
    padding: 24px;
    margin: 10px;
    background: transparent;              /* FIXED */
    box-shadow: 0px 3px 15px rgba(84, 84, 84, 0.1); /* FIXED */
    font-size: 40px;
    text-align: right;
    cursor: pointer;
    color: #ffffff;
}

input::placeholder{
    color: #ffffff;
}

button{
    border: none;
    width: 60px;
    height: 60px;
    background: transparent;
    color: #ffffff;
    border-radius: 50%;
    cursor: pointer;
    margin: 10px;
    box-shadow: -8px -8px 15px rgba(255, 255, 255, 0.1);
}
/* ===== ADDONS (NO EXISTING CODE REMOVED) ===== */

/* Operator buttons */
button.operator {
    color: #6dee0a;
    font-weight: 600;
}

/* Equal button */
button.equalBtn {
    background-color: #fb7c14;
    color: #ffffff;
    box-shadow: 0 0 15px rgba(251, 124, 20, 0.6);
}

/* Button hover effect */
button:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Button active (click) effect */
button:active {
    transform: scale(0.95);
}

/* Calculator input border glow */
input {
    border-radius: 10px;
}

/* Better spacing between rows */
.calculator div {
    display: flex;
    justify-content: center;
}