style.css

* {
    margin: 0;
    padding: 0;
    overflow: hidden;
}

.header {
    font-size: 1.9rem;
    color: white;
    background-color: #9C3F3F;
    font-family: "Krona One", sans-serif;
    font-weight: 400;
    font-style: normal;

}

.title {
    margin-left: 2%;
    padding-top: 2%;
    padding-bottom: 2%;

}

.mainBody {
    background-image: linear-gradient(to right, #C13232, #7E4848, #645151);
    display: flex;
    flex-direction: column;
    gap: 40px;
    height: 100vh;
}

form {
    display: flex;
    flex-direction: column;
    gap: 36px;
    min-width: 84vw;
    margin: 2% 10% 2% 10%;
    align-items: center;
}

form input {
    min-width: 20rem;
    height: 40px;
    border-radius: 50px;
    border: none;
    padding-left: 10px;
    box-shadow: inset 0 0 15px black;
}
.alignnn{
    display: flex;
    flex-direction: column;

}
form button {
    height: 40px;
    min-width: 5rem;
    border-radius: 50px;
    border: none;
    opacity: 0.5;
    box-shadow: 0 8px 6px -6px black;
    cursor: pointer;
}
button:hover{
    opacity: 1;
}
.finalCentre {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
    gap: 10px;
    margin: 5% 0 0 0;
}

.intro {
    padding-left: 10%;
    padding-right: 10%;
    padding-top: 2%;
    color: white;
    margin: 3% 0 0 0;
    font-size: 1.9rem;
    font-family: "Kumbh Sans", sans-serif;
    font-optical-sizing: auto;
    font-weight: 500;
    font-style: normal;
    font-variation-settings:
        "YOPQ" 300;
}

.resWrap {
    display: flex;
    flex-direction: row;
    align-items: center;
    font-size: 2rem;
}
 .desWrap {
    font-size: 1.9rem;
    font-family: "Kumbh Sans", sans-serif;
    font-optical-sizing: auto;
    font-weight: 100;
    font-style: normal;
    font-variation-settings:
        "YOPQ" 300;
}
.resultTxt {
    font-family: "Krona One", sans-serif;
    font-weight: 400;
    font-style: normal;
    margin-left: 6px;
    font-size: 2.9rem;
}
@media (width <=600px) {
    .intro {
        font-size: 0.8rem !important;
    }
    .desWrap {
        display: flex;
        margin-left: 4%;
        font-size: 0.9rem !important;
        font-weight: 700;
    }
    .header .title {
        font-size: 1.0rem;
        font-weight: 100 !important;
    }
}