* {
    font-family: "Poppins", sans-serif;
    letter-spacing: 1px;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(to right, #12c2e9, #c471ed, #f64f59);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    width: 100vw;
}

.container {
    background-color: whitesmoke;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px 0px rgba(0, 0, 0, 0.515);
    width: 400px;
}

h1 {
    text-align: center;
    color: darkorchid;
}

.input-group {
    margin: 10px;
}

.input-group label {
    display: block;
    margin: 0 0 5px 0;
}

.input-group input {
    width: 100%;
    padding: 5px;
    border: 1px solid rgb(178, 178, 178);
    border-radius: 2.5px;
}

.input-group input:focus {
    outline: 0;
}

.input-group button {
    width: 100%;
    padding: 5px;
    border: 0;
    background-color: rgb(0, 183, 255);
    color: white;
    border-radius: 2.5px;
    font-weight: 500;
    font-size: 16px;
    margin: 5px 0 0 0;
}

.input-group button:hover {
    cursor: pointer;
}

.input-group .error {
    color: red;
    font-weight: 500;
    margin: 5px 0 0 0;
}

/* javascript condition */
.input-group.success input {
    border-color: green;
}

.input-group.error input {
    border-color: red;
}