:root {
  --color-bg: #f0f0f0;
  --color-purple: #864cff;
  --color-light-gray: #dbdbdbff;
  --color-gray: #8a8a8a;
  --color-black: #151515;
  --color-white: #ffffff;
  --color-red: #ff5757ff;
  --font-weight-regular: 400;
  --font-weight-bold: 700;
  --font-weight-extra-bold: 800;
}

*{
    box-sizing: border-box;
    margin: 0;
}

.container{
    font-family: 'poppins', sans-serif;
    display:flex;
    min-height: 100vh;
    align-items: center;
    justify-content:center;
    background: rgb(17, 184, 187);
    background: radial-gradient(circle,rgb(17, 184, 187)0%,rgba(148,187,233,1));
}

.card{
    width: 40%;
    max-width: 100%;
    margin: 0 10px;
    padding: 70px;
    background: var(--color-bg);
    border-radius:20px;
    box-shadow: 0 0 5px rgba(0,0,0,.22);

}

.card__form {
    display: flex;
    gap:15px
}

.card__inputContainer {
    flex:1;
}

.card__label {
    display: block;
    font-weight: var(--font-weigth-bold);
    font-size: 25px;
    letter-spacing: 3px;
    color: var(gray);
    margin-bottom: 5px;
}

.card__input {
    padding:10px;
    border:1px solid var(--color-bg);
    border-radius:5px;
    width: 100%;
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    outline:none;
    transition: all 0.3s;
}

.card__input:focus {
    border-color:var(--color-purple);
}

.card__input--error {
    border-color: red;
}

.card__errorMessage {
    display: block;
    font-size: 15px;
    font-style: italic;
    color: cornflowerblue;
    margin-top: 5px;
    font-weight: var(--font-weigth-bold);
    opacity: 0;
    visibility: hidden;
}

.card__input--error + .card__errorMessage{
    opacity: 1;
    visibility: visible;
}

.card__sparator {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 30px 0;
}

.card__sparator:before {
    content: '';
    width: 100px;
    height: 100px;
    background-color: rgb(212, 192, 192);
     
}

.card__button {
    padding: 10px 20px;
    border:none;
    border-radius:4px;
    background-color:  var(--color-purple);
    color: #f0f0f0;
    font-size: 18px;
    font-weight:var(--font-weight-bold);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1;

   
}

.card__result {
    font-size: 35px;
    font-weight: var(--font-weight-bold);
    font-style: italic;
    text-align: center;
    margin-top: 30px;
    margin-bottom:0px;
}
 
.card__resultValue{
    font-size: 36px;
    color: var(--color-purple);  
}