@import url("https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap");

:root {
    --active-color: #40a9dd;
    --success-color: #53ddb4;
    --error-color: #d43a4c;
}

main .container {
    max-width: 90%;
    height: 100vh;
    display: grid;
    place-items: center;
}

.container h2 {
    font-size: 2.3rem;
    font-weight: 700;
    text-align: center;
    color: var(--main-color);
}

.form {
    width: 100%;
    max-width: 340px;
}

.form-field {
    position: relative;
    margin: 40px 0;
}

input {
    width: 100%;
    border: 1px solid #cac9c9;
    padding: 1.4rem;
    border-radius: 1rem;
    outline: none;
    font-size: 1rem;
    font-weight: 500;
    text-transform: none;
    transition: 0.4s all;
    background: transparent;
}

input::placeholder {
    text-transform: capitalize;
    color: var(--text-color);
}

.form-label {
    position: absolute;
    left: 1.2rem;
    top: -0.65rem;
    background: var(--bg-color);
    padding: 2px 6px;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 5px;
}

.error {
    position: absolute;
    left: 0.5rem;
    bottom: -1.3rem;
    display: flex;
    align-items: center;
    column-gap: 0.25rem;
    color: var(--error-color);
    opacity: 0;
    pointer-events: none;
    transition: 0.4s all;
}

.error i {
    font-size: 0.9rem;
}

.error span {
    font-size: 0.75rem;
    font-weight: 500;
}

input:focus {
    border-color: var(--active-color);
    box-shadow: 0 8px 24px #269dd94d;
}

main button {
    width: 100%;
}

.valid input {
    border-color: var(--success-color);
    box-shadow: 0 4px 10px #38af89;
}

.invalid input {
    border-color: var(--error-color);
    box-shadow: 0 8px 24px #d43a4c4d;
}

.invalid .error {
    opacity: 1;
}

@media  (max-width: 768px) {
    input {
    padding: 1rem;
    font-size: 0.8rem;
}

.form-label {
    font-size: 0.6rem;
}
.error i {
    font-size: 0.7rem;
}
.error span {
    font-size: 0.6rem;
}
}