*,
::before,
::after {
    box-sizing: border-box;
    margin: 0; 
    padding: 0; 
}


.container {
    width: 100%;
    min-height: 100vh;
    background-color: #fff;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
}


.converter {
    width: 100%;
    max-width: 300px; 

    border: 2px solid #bd8b0d;
    padding: 1rem;
    border-radius: 10px; 
    box-shadow: 2px 2px 2px 2px #bd8b0d; 
}


.converter h1 {
    font-size: 1.5rem;
    text-shadow: 2px 2px 2px #bd8b0d ;
    text-align: center; 
    margin-bottom: 1rem;
}


.input-field form { 
    display: flex;
    gap: 0.3rem; 
    
}

.input-field form input {
    width: 50%;
    font-size: 1rem; 
    text-align: center;
    line-height: 1.5rem; 
    border: 1px solid #bd8b0d;
    outline-color: #bd8b0d;
}

input:-webkit-autofill,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
    transition: background-color 5000s ease-in-out 0s;
    background-color: transparent;
}

.input-field form span {
    font-weight: bold;
}

.unit {
    display: flex;
    gap: 1.5rem; 
    justify-content: space-between;
    font-size: 1rem; 
    margin-bottom: 0.8rem; 
}

.unit select {
    width: 50%;
    font-size: 0.8rem; 
    font-weight: bold;
    text-shadow: 1px 1px #000;  
    line-height: 2rem;
    border: 1px solid #bd8b0d;
    background-color: #bd8b0d;
    color: #fff;
    outline-color: #bd8b0d;
}


.btn {
    display: block;
    margin-inline: auto;
    padding: 0.2rem 0.5rem; 
    font-size: 0.9rem; 
    font-weight: bold;
    cursor: pointer;
    border: 1.5px solid #000;
    background-color: #bd8b0d;
    color: #fff;
    text-shadow: 1px 1px #000;  
    border-radius: 10px;
}


input::-webkit-inner-spin-button,
input::-webkit-outer-spin-button {
    display: none; 
}


@media (min-width: 500px) {
    html {
        font-size: 18px; 
    }

    .converter {
        max-width: 350px; 
    }
}

@media (min-width: 750px) {
    html {
        font-size: 28px; 
    }

    .converter {
        max-width: 500px; 
    }
}

@media (min-width: 1000px) {
    html {
        font-size: 30px; 
    }

    .converter {
        max-width: 600px; 
    }
}