body {
    font-family: 'SF Pro', sans-serif;
    background-color: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
.container {
    background-color: #111;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgb(113, 198, 255);
    width: 100%;
    max-width: 400px;
    text-align: center;
}
h1 {
    margin-top: 10px;
    margin-bottom: 30px;
    font-weight: 700;
    font-size: 35px;
    color: #E8E8ED;
}
h3 {
    position: absolute;
    bottom: 10px;
    font-size: 13px;
    color: #E8E8ED;
    margin: 0px 0px 0px 50px;
}
a{
    color: #E8E8ED;
}
.form-group {
    margin-top: 20px;
    margin-bottom: 20px;
    text-align: center;
}
label {
    display: block;
    margin-bottom: 10px;
    margin-top: 15px;
    font-weight: 600;
}
input, select {
    width: 90%;
    padding: 10px;
    border: 1px solid rgb(0, 105, 175);
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 20px;
    background: rgb(31, 31, 31);
    color: #E8E8ED;
    text-align: center;
}
button {
    background-color: rgb(0, 114, 190);
    color: #E8E8ED;
    border: none;
    padding: 13px 30px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
    font-size: 20px;
}
button:hover {
    background-color: #0020b1;
}
.result {
    margin-top: 25px;
    font-size: 18px;
    color: #E8E8ED;
    font-weight: 600;
}

@media (max-width: 768px) {
    body{
        height: 100vh;
    }
    .container {
        padding: 20px;
        max-width: 100%;
        margin: 35px;
    }
    h1 {
        font-size: 25px;
        margin-bottom: 40px;
    }
    input, select, button {
        font-size: 16px;
        padding: 10px;
    }
    .result {
        font-size: 16px;
    }
    h3 {
        font-size: 12px;
        margin: 0;
        bottom: -50px;
    }
}