@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@600&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
        font-family: 'Poppins', sans-serif;     
      
}
/* Theme toggle button */
#theme-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 6px 12px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    background: #10a0b3;
    color: white;
    font-size: 30px;
}

/* Light mode only inside calculator */
.calculator.light-mode {
    background: #f9f9f9;
    border: 5px solid #007bff;
    box-shadow: 0px 3px 15px rgba(0, 0, 0, 0.2);
}

.calculator.light-mode h2 {
    color: #000;
}

.calculator.light-mode input {
    background: #ffffff;
    color: #000;
    box-shadow: 0px 3px 10px rgba(0, 0, 0, 0.1);
}

.calculator.light-mode button {
    background: #c8c5c5;
    color: #000;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.1);
}

.calculator.light-mode .operator {
    color: #007bff;
}

.calculator.light-mode .equalBtn {
    background-color: #28a745;
    color: #fff;
}


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

.calculator{
    border: 1px solid #1857d6;
    padding: 20px;
    border-radius: 16px;
    background: transparent;
    box-shadow: 0px 3px 15px rgba(19, 146, 93, 0.5);


}

input {
    width: 320px;
    border: 2px solid #000000;
    padding: 24px;
    margin: 10px;
    background: transparent;
    box-shadow: 0px 3px 15px rgba(84, 84, 84, 0.1);
    font-size: 40px;
    text-align: right;
    cursor: pointer;
    color: white;
    overflow-x: auto;
    white-space: nowrap;
}
input:hover,
input:focus {
    border: 2px solid #000000;
    box-shadow: 0px 3px 15px rgba(0, 0, 0, 0.2);
}


input::placeholder{
    color: #2bc70c;
}

button{
    border: non;
    width: 60px;
    height: 60px;
    margin: 10px;
    border-radius: 20%;
    background: transparent;
    color: #ffffff;
    font-size: 23px;
    box-shadow: -8px -8px 15px rgba(49, 45, 45, 0.842);
    cursor: pointer;
}

.equalBtn{
    background-color: #ff9500;

}

.operator{
    color: #f2f7f6;
}