style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@500&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-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    background-color: rgba(0, 0, 0, 0.5); /* Dark overlay to ensure text readability */
    background: url('img/bg.jpg');
}

.calculator {
    border: 1px solid #94c312;
    padding: 20px;
    border-radius: 16px;
    background: transparent;
    background-image: url('img/bg1.jpg'); /* Replace URL_TO_YOUR_IMAGE_HERE with your image link */
    box-shadow: 0px 3px 15px rgba(44, 221, 56, 0.5);
}

input {
    width: 320px;
    border: none;
    padding: 24px;
    margin: 10px;
    background: transparent;
    box-shadow: 0px 18px 20px rgba(84, 84, 84, 0.1);
    font-size: 40px;
    text-align: right;
    cursor: pointer;
    color: #ffffff;
}

input::placeholder {
    color: #ffffff;
}

button {
    border: none;
    width: 60px;
    height: 60px;
    margin: 10px;
    border-radius: 50%;
    background: transparent;
    color: #ffffff;
    font-size: 20px;
    box-shadow: -8px -8px 15px rgba(219, 216, 216, 0.1);
    cursor: pointer;
}

.equalBtn {
    border: none;
    width: 50px;
    height: 50px;
    margin: 10px;
    border-radius: 15px;
    background-color: #fb7c14;
    font-size: 30px;
}

.numberBtn {
    border: none;
    width: 140px;
    height: 60px;
    margin: 10px;
    border-radius: 25px;
    background-color: #fb7c14;
    color: #ffffff;
    font-size: 30px;
   
    cursor: pointer;
}

.operator {
    color: #6dee0a;
}

h1, h2 {
    font-family: 'Poppins', sans-serif;
    font-weight: 400;
    color: #d0e10b;
    line-height: 1.25em;
}