input.scss

input, select, textarea, .textarea, option {
    font-family: var(--ff);
    font-weight: 300;
}

input[type=checkbox] ~ .checked-visibility,
input[type=checkbox]:checked ~ .checked-visibility-alt {
    display: none;
}

input[type=checkbox]:checked ~ .checked-visibility,
input[type=checkbox] ~ .checked-visibility-alt {
    display: inline-block;
}

input, select, textarea, .textarea {
    border: 1px solid var(--iborder);

    &.undecorated {
        padding: 0;
        border: none;
        background: transparent;
        resize: none;
    }

    &:active.undecorated, &:focus.undecorated {
        appearance: none;
        outline: none;
        border-style: none;
    }
}

progress {
    height: 20px;
    width: 100%;
    min-width: 150px;
}

.textarea,
.tag-input,
textarea,
select,
input[type="password"],
input[type="text"],
input[type="datetime"],
input[type="email"],
input[type="date"],
input[type="number"],
input[type="datetime-local"] {
    box-sizing: border-box;
    color: var(--ipt-c);
    background: var(--ipt-bg);
    width: 100%;
    //min-width: 70px;
    max-width: 100%;
    font-size: .9rem;
    border: 1px solid var(--iborder);
    transition: background 0.3s, border 0.3s;

    &:focus, &.active, &:active {
        border-color: var(--ipt-bg-active);
        border: 1px solid var(--iborder-active);
        color: var(--ipt-c-active);
    }

    &:disabled {
        cursor: not-allowed;
        background: var(--disabled-bg);
    }
}

.textarea,
.tag-input,
textarea,
select:not([multiple]),
input[type="password"],
input[type="text"],
input[type="datetime"],
input[type="email"],
input[type="date"],
input[type="number"],
input[type="datetime-local"] {
    height: 30px;
    padding-left: .5rem;
}

.inputWithIcon {
    position: relative;

    .frontIco, .endIco {
        color: var(--ipt-ico-c);
        font-size: 1rem;
        position: absolute;
        padding: .5rem;
        font-weight: 200;
    }

    .frontIco {
        left: 0;
        top: 0;
    }

    .endIco {
        right: 0;
        top: 0;
    }

    .frontIco + input[type="text"], .frontIco + input[type="password"] {
        padding-left: 2.5rem;
    }

    input[type=text]:active, input[type=text]:focus,
    input[type=password]:active, input[type=password]:focus {
        border: 1px solid var(--iborder-active);
        color: var(--txt-on-bg-c);
    }

    input[type=text]:active~.frontIco, input[type=text]:focus~.frontIco,
    input[type=password]:active~.frontIco, input[type=password]:focus~.frontIco,
    input[type=text]:active~.endIco, input[type=text]:focus~.endIco,
    input[type=password]:active~.endIco, input[type=password]:focus~.endIco {
        color: var(--ipt-ico-c-active);
    }

    input[type=text]~.endIco, input[type=text]~.endIco,
    input[type=password]~.endIco, input[type=password]~.endIco {
        cursor: pointer;
    }
}

.inputWrapper {
    display: inline-flex;
    flex-direction: row;

    .txtWrap+input[type=submit], .txtWrap+input[type=button], .txtWrap+button {
        margin: 0;
        padding: 0;
        flex: 0;
        box-shadow: none;
    }

    .frontIco, .endIco {
        color: var(--ipt-ico-c);
        font-size: 1.1rem;
        font-weight: 200;
        position: absolute;
        top: 0;
        padding: .25rem .6rem .6rem .4rem;
    }

    .frontIco {
        left: 0;
        font-size: 1.5rem;
    }

    .endIco {
        right: 0;
        font-size: 1.5rem;
    }

    .txtWrap {
        flex: 1;
        position: relative;

        i+input {
            padding-left: 2rem;
        }

        input[type=text]:active, input[type=text]:focus,
        input[type=password]:active, input[type=password]:focus {
            border: 1px solid var(--iborder-active);
        }

        input[type=text]:active~.frontIco, input[type=text]:focus~.frontIco,
        input[type=password]:active~.frontIco, input[type=password]:focus~.frontIco,
        input[type=text]:active~.endIco, input[type=text]:focus~.endIco,
        input[type=password]:active~.endIco, input[type=password]:focus~.endIco {
            color: var(--ipt-ico-c-active);
        }

        input[type=text]~.endIco, input[type=text]~.endIco,
        input[type=password]~.endIco, input[type=password]~.endIco {
            cursor: pointer;
        }
    }
}

.advIpt, .clickPopup {
    //position: relative;
    /* position: relative; uncomment! otherwise the drop down inside would not be able to overflow and add a scroll bar to the container which is not desired in this case! */
}

.clickPopup {
    & > input {
        display: none;
    }

    label + input, input[type="checkbox"] {
        display: none;
    }

    .more-functions {
        padding: 0 1rem 0 1rem;
    }

    .popup {
        box-sizing: border-box;
        padding: .5rem 1rem .5rem 1rem;
        background: #fff;
        box-shadow: 0 0 3px 1px rgba(72, 71, 114, 0.3);
        right: 0;

        ul {
            width: 100%;
        }

        > ul {
            display: flex;
            flex-direction: column;

            & > li {
                display: flex;
                align-items: center;
                margin: .5rem 0 .5rem 0;
                white-space: nowrap;
            }
        }

        .button {
            margin-right: 1rem;
        }

        span {
            flex-grow: 1;
        }

        input[type="checkbox"] {
            &:checked + ul {
                .expand {
                    transition: all .3s ease;
                    display: inherit;
                    transform: rotateZ(90deg);
                }

                > li:nth-child(n+2) {
                    display: inherit;
                }
            }
        }

        input + ul {
            .expand {
                font-size: .9rem;
                transition: all .3s ease;
                transform: rotateZ(0deg);
            }

            > li:nth-child(n+2) {
                display: none;
            }
        }

        label {
            display: flex;
            align-items: center;
            cursor: pointer;
        }

        > li {
            display: block;

            a {
                display: block;

                /*
                &:hover, &:focus {
                }
                */
            }
        }

        i {
            flex-grow: 0;
        }
    }
}

input ~ .popup {
    position: absolute; /* All other options e.g. static, relative resize the container which is bad */
    display: none;
    z-index: 3;
}

/* In the past we also used input:focus ~ .popup this is a problem because clicking on something e.g. close button will not close the popup since it is still focused. */
input:checked ~ .popup, input ~ .popup.active {
    display: inline-block;
}

select {
    cursor: pointer;
    padding: 0 7px 0 7px; /* overwrites input padding: 7px. don't know why i have to do this! */
}

option {
    line-height: 1rem;
}

input[type="file"] {
    border: 1px solid var(--iborder-active);
    width: 100%;
    max-width: 100%;
    color: var(--ipt-c);
    padding: 10px;
    box-sizing: border-box;
}

input::placeholder {
    font-family: 'FontAwesome', serif;
    color: var(--ipt-ico-c);
    opacity: 0.5;
}

textarea:invalid, input:invalid {
    transition: all 0.5s !important;
    border-color: #f00 !important;

    & ~ i.ok {
        display: none !important;
    }

    & ~ i.error {
        display: inline-block !important;
    }
}

input:valid {
    & ~ i.ok {
        display: inline-block !important;
    }

    & ~ i.error {
        display: none !important;
    }
}

textarea, .textarea {
    overflow: auto;
    resize: both;
    box-sizing: border-box;
    padding: .3rem .3rem .3rem .5rem;
}

label.radio, label.checkbox {
    display: inline-flex;
    align-items: center;
    user-select: none;
    cursor: pointer;

    input {
        margin: 0;
        opacity: 0;
        cursor: pointer;

        &:checked ~ .checkmark {
            background: var(--btn-bg);
        }

        &:required ~ .checkmark, &:disabled ~ .checkmark {
            background: #adadad;
        }

        &:checked ~ .checkmark:after {
            display: block;
        }
    }

    .checkmark {
        position: relative;
        height: 15px;
        width: 15px;
        margin-right: 5px;
        background: var(--ipt-bg);
        border: 1px solid var(--iborder-active);

        &:after {
            content: "";
            position: absolute;
            display: none;
        }
    }

    &:hover input ~ .checkmark {
        cursor: pointer;
    }
}

label {
    &.radio {
        .checkmark {
            border-radius: 50%;

            &:after {
                top: 5px;
                left: 5px;
                width: 5px;
                height: 5px;
                border-radius: 50%;
                background: #fff;
            }
        }
    }

    &.checkbox {
        .checkmark {
            &:after {
                top: 2px;
                left: 4px;
                width: 4px;
                height: 6px;
                border: solid white;
                border-width: 0 3px 3px 0;
                transform: rotate(45deg);
            }
        }
    }
}

input[type="range"] {
    border: none;
    width: 100%;
    min-width: 150px;
    height: 5px;
    background: var(--btn-bg);
    cursor: pointer;
}

.input {
    width: 100%;
    //min-width: 120px;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;

    button {
        box-sizing: border-box;
        // display: inline-block; If I add this, icons in a button are no longer centered
        background: var(--btn-bg);
        height: 30px;
        font-size: 1rem;
        min-width: 40px;
        border-left: solid 1px var(--iborder);
        border-top: solid 1px var(--iborder);
        border-bottom: solid 1px var(--iborder);
        border-right: none;
        padding: 0;

        position: relative;
        vertical-align: middle;
        flex-grow: 0;
        flex-shrink: 0;

        &:hover, &:focus {
            background: var(--btn-bg-hover);
        }

        &.inactive {
            background: #ccc;
            cursor: default;

            &:hover, &:focus {
                background: #ccc;
            }
        }
    }

    input {
        box-sizing: border-box;

        position: relative;
        vertical-align: middle;
        flex-grow: 1;
        flex-shrink: 1;
    }
}

select.plain {
    width: auto;
    margin: 0;
    padding: 0;
    border: none;
    outline: none;
    display: inline-block;
    appearance: none;
    cursor: pointer;
    box-shadow: none;
}

.dropdown {
    cursor: pointer;
    display: inline-block;
    width: 100%;
    border: 1px solid #000;
    position: relative;
    box-shadow: none;
    outline: 0;
    margin: 0;
    font-family: inherit;
    font-size: .9rem;
    user-select: none;

    &:hover {
        background: #f00;
    }

    label {
        cursor: pointer;
        user-select: none;
    }

    & > input {
        display: none;

        &:checked + .dropdown-container {
            display: block;
            background: #fff;
            border: 1px solid #000;
            position: absolute;

            label {
                display: flex;
                align-items: center;

                &:hover {
                    background: #f00;
                }
            }
        }
    }
}

.dropdown-closed {
    display: flex;
    height: 100%;
    align-items: center;

    label {
        display: none;
    }

    input {
        display: none;

        &:checked+label {
            display: flex;
            align-items: center;
        }
    }
}

.dropdown-container {
    display: none;
    z-index: 2;

    label {
        padding: .5rem;
    }
}