@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');
body {
   
    background-color: #f4f4f9;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 10px;
    margin-top: 20px;
}
body,h1,h2,h3,h4,h5,h6,h7.h8,h9,p,div,span{
        
    font-family: "Poppins", serif;
    font-weight: 200;
    /* font-style: normal; */
  
          }
nav {
    background-color: #007BFF;
    width: 100%;
    padding: 10px 0;
    text-align: center;
    position: fixed;
    top: 0;
    left: 0;
}
nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}
nav a:hover {
    text-decoration: underline;
}
.calculator {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 400px;
    /* text-align: center; */
    margin-top: 100px;
}
.calculator h2 {
    margin-bottom: 20px;
}
.calculator input, .calculator select {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-sizing: border-box;
}
.calculator button {
    width: 100%;
    padding: 10px;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}
.calculator button:hover {
    background-color: #0056b3;
}
.result {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
}

@media only screen and (max-width: 600px) {
nav{
font-size: 10px;
}
}