.form {
    display: block;
}

.form__item {
    clear: both;
    padding-top: var(--size);
    position: relative;
}
.form label,
.form__label {
    display: block;
    padding-bottom: calc(var(--size) * 0.25);
}
.form label span,
.form__label span {
    display: inline-block;
}
.form input {
    display: block;
    width: 100%;
    padding: calc(var(--size) * 0.5);
    border: 2px solid #ccc;
    border-radius: calc(var(--size) * 0.25);
}
.form__modificator:after {
    min-width: 1.5em;
    height: 1.5em;
    line-height: 1.5em;
    text-align: center;
    border-radius: 50%;
    vertical-align: middle;
    display: inline-block;
    font-family: 'remixicon' !important;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
} 
.form__modificator.required {
    position: relative;
    display: inline-block;
    width: 1.5em;
    height: 1.5em;
}
.form input + .form__modificator:after {
    position: absolute;
    bottom: calc(var(--size) * 1.5);
    right: calc(var(--size) * -0.5);
}
.form input:required + .form__modificator:after, .form__modificator.required:after {
    content: "\ea81";
    background: var(--yellow);
}
.form input:focus,
.form input:active {
    border-color: var(--blue);
}
.form input:invalid {
    border-color: var(--red);
}
.form input[type='checkbox'] {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
    pointer-events: none;
}
.form input[type='checkbox'] + label {
    vertical-align: middle;
    position: relative;
    display: inline-block;
}
.form input[type='checkbox'] + label:before {
    content: '';
    display: inline-block;
    width: calc(var(--size) * 2);
    height: calc(var(--size) * 2);
    border: 2px solid #ccc;
    border-radius: calc(var(--size) * 0.25);
    vertical-align: middle;
    margin-bottom: 3px;
    margin-right: calc(var(--size) * 0.5);
    cursor: pointer;
    text-align: center;
    line-height: calc(var(--size) * 2);
    transition: border-color 0.1s linear, background-color 0.1s linear;
}
.form input[type='checkbox'] + label:after {
    position: absolute;
    content: '';
    width: calc(var(--size) * 1);
    height: calc(var(--size) * 0.6);
    left: calc(var(--size) * 0.5);
    top: calc(var(--size) * 0.55);
    transform: rotate(-45deg);
    border-left: 4px solid transparent;
    border-bottom: 4px solid transparent;
    transition: border-color 0.1s linear;
}
.form input[type='checkbox']:checked + label:before {
    border-color: var(--blue);
    background-color: var(--blue-pastel);
}

.form input[type='checkbox']:checked + label:after {
    border-left-color: var(--blue);
    border-bottom-color: var(--blue);
}
.form input[type='checkbox']:focus + label:before {
    border-color: var(--blue);
}
.form input[type='checkbox']:disabled + label {
    opacity: 0.3;
}
.form__success,
.form__error {
    padding: var(--size);
    border: 2px solid #111;
    border-radius: calc(var(--size) * 0.25);
    margin: var(--size) 0;
    position: relative;
}
.form__success:after,
.form__error:after {
    content: '';
    position: absolute;
    top:0;
    right:0;
    bottom:0;
    left:0;
    opacity: 0.1;
    background-color: #111;
}
.form__success a,
.form__error a {
    color: inherit;
}
.form__success {
    color: var(--green);
    border-color: var(--green);
}
.form__success:after {
    background-color: var(--green);
}
.form__error {
    color: var(--red);
    border-color: var(--red);
}

.form__error:after {
    background-color: var(--red);
}