.form {
    --input-bg: #FFF; /* Background of input */
    --padding: 1.5em; /* Padding around input */
    --rotate: 80deg; /* Rotation degree of icon */
    --gap: 2em; /* Gap between elements */
    --icon-change-color: #15A986; /* Color when icon changes */
    --height: 40px; /* Height of input */
    width: 00px; /* Width of form */
    background: var(--input-bg);
    position: relative;
    border-radius: 4px;
}

.form label {
    display: flex;
    align-items: center;
    width: 100%;
    height: var(--height);
}

.form input {
    width: calc(100% - 40px); /* Adjust width for icons and close button */
    padding-inline-start: calc(var(--padding) + var(--gap));
    outline: none;
    background: none;
    border: 0;
}

.form svg {
    color: #111;
    transition: 0.3s cubic-bezier(.4,0,.2,1);
    position: absolute;
    height: 15px;
}

.icon {
    position: absolute;
    left: var(--padding);
    transition: 0.3s cubic-bezier(.4,0,.2,1);
    display: flex;
    justify-content: center;
    align-items: center;
}

.swap-off {
    transform: rotate(-80deg);
    opacity: 0;
    visibility: hidden;
}

.close-btn {
    background: none;
    border: none;
    right: calc(var(--padding) - var(--gap));
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #111;
    padding: 0.1em;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    transition: 0.3s;
    opacity: 0;
    transform: scale(0);
    visibility: hidden;
}

.form input:focus ~ .icon {
    transform: rotate(var(--rotate)) scale(1.3);
}

.form input:focus ~ .icon .swap-off {
    opacity: 1;
    transform: rotate(-80deg);
    visibility: visible;
    color: var(--icon-change-color);
}

.form input:focus ~ .icon .swap-on {
    opacity: 0;
    visibility: visible;
}

.form input:valid ~ .icon {
    transform: scale(1.3) rotate(var(--rotate));
}

.form input:valid ~ .icon .swap-off {
    opacity: 1;
    visibility: visible;
    color: var(--icon-change-color);
}

.form input:valid ~ .icon .swap-on {
    opacity: 0;
    visibility: visible;
}

.form input:valid ~ .close-btn {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
    transition: 0s;
}