* .flex {
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-content: flex-start;
    align-items: center;
}

.dkc ul {
    list-style: none;
    padding: 0;
}

.dkc .header-wrap {
    padding: 0 0 10px;
    border-bottom: solid 1px var(--text-color);
}

.single-headline-desc {
    display: block;
    padding: 0.5em 0;
}

.dkc .header-wrap .dk-icon-border {
    height: 41px;
    max-width: 43px;
    margin: 0 9px 0 0;
    padding: 5px;
    border-radius: 4px;
    border: 1px solid var(--red);
    background: var(--white);
}

.rtl .dkc .header-wrap .dk-icon-border {
    margin: 0 0 0 9px;
}

.dkc .header-wrap .dk-icon {
    margin-right: 1em;
    height: 50px;
    width: 80px;
}

.dkc-app {
    display: grid;
    grid-template-columns: 2fr 1fr;
    grid-template-rows: min-content;
    grid-gap: 2em;
    padding: 1.5em 2em;
    border-radius: 4px;
    border: 1px solid var(--border-color--card);
    background: var(--bg-color--card);
}

/* RELATED TOOL ────────── */
.related-tools-wrap {
    padding: 30px 0 0;
}

.related-tools-wrap h2 {
    margin: 0;
    padding: 0 0 10px;
    font-size: 20px;
    font-weight: bold;
}

.related-tools-wrap ul {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: 1fr;
    grid-gap: 2em;
    margin: 0;
    padding: 0;
    list-style-type: none;
}

.related-tools-wrap ul li a {
    display: block;
    padding: 15px;
    color: var(--text-color);
    text-align: center;
    text-decoration: none;
    border-radius: 4px;
    border: 2px solid var(--border-color--card);
    background: var(--bg-color--card);
}

.related-tools-wrap ul li a .dkc-related_img {
    max-height: 45px;
    padding: 4px;
    background: var(--white);
    border-radius: 4px;
}

.related-tools-wrap ul li a:hover,
.related-tools-wrap ul li a:focus {
    text-decoration: none;
    border: 2px solid var(--red);
}

.related-tools-wrap ul li span {
    display: block;
    padding: 10px 0 0;
    margin-top: auto;
}


/* CALCULATOR */
.dkc-label {
    font-weight: 700;
}

.dkc-input {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    -o-appearance: none;
    width: 100%;
    min-width: 10ch;
    height: 40px;
    padding: 0.7em 0.375em 0.7em 0.5em;
    font-size: 13px;
    text-align: left;
    color: var(--text-color);
    box-sizing: border-box;
    background-color: var(--bg-color--input);
    border-radius: 0 4px 4px 0;
    border: 2px solid transparent;
    box-shadow: 0 0 0 1px var(--cloud-grey);
    outline: 0;
}

.rtl .dkc-input {
    padding: 0.7em 0.5em 0.7em 0.375em;
    text-align: right;
}

.dkc-input::placeholder {
    color: var(--cloud-grey);
}

.dkc-input:invalid {
    background: var(--red);
}

.dkc-dropdown {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    -o-appearance: none;
    height: 40px;
    padding: 0.7em 0.5em;
    font-size: 13px;
    text-align: left;
    color: var(--text-color);
    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAcCAYAAAByDd+UAAAACXBIWXMAAAsSAAALEgHS3X78AAAAuElEQVRIie3WWw3DMAwF0NsiaIJgDEZhEEohDAphEAZhEAZhEDYippDKVdVq6yPO1lhVlfvnD+tIli258N5DM6WqlsFDgIUxpgLwBHBObL0BXBh8KWADyiM9KWGcisFGEbyWRHQH4BQwx1a3pQqo643xLBKiA4bvw0+AfmATcGN0gs2CG6Gz2CL4J7qIrYI/oqtYEIxEg5gIFKIiTAwGUDHGiX6irLU1gFtfNkT0iOnPX1sGdw4CaAESg2cDBgmWTAAAAABJRU5ErkJggg==);
    background-position: right 6px center;
    background-repeat: no-repeat;
    background-size: 1.25ex;
    background-origin: content-box;
    box-sizing: border-box;
    border-radius: 0 4px 4px 0;
    border: 2px solid transparent;
    box-shadow: 0 0 0 1px var(--cloud-grey);
    cursor: pointer;
    outline: 0;
}

.dkc-field--dropUnit {
    display: grid;
    grid-template-columns: 1fr 64px;
    grid-template-rows: 18px 1fr;
    grid-template-areas: 'label label' 'input dd';
}

.dkc-field--dropUnit .dkc-label {
    grid-area: label;
    font-size: 13px;
}

.dkc-field--dropUnit .dkc-input {
    grid-area: input;
    border-radius: 4px 0 0 4px;
    border-right: none;
    z-index: 1;
}

.rtl .dkc-field--dropUnit .dkc-input {
    border-radius: 0 4px 4px 0;
    border-right: solid 1px var(--border-color--card);
    border-left: none;
}

.dkc-field--dropUnit .dkc-dropdown {
    grid-area: dd;
    border-radius: 0 4px 4px 0;
    background-color: var(--bg-color--card);
}

.rtl .dkc-field--dropUnit .dkc-dropdown {
    border-radius: 4px 0 0 4px;
}

.dkc-field--dark {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 64px;
    grid-template-rows: 1fr;
    grid-template-areas: 'input dd';
}

.dkc-field--dark .dkc-label {
    grid-area: label;
    position: absolute;
    color: var(--white);
    left: 1em;
    top: 1em;
}

.rtl .dkc-field--dark .dkc-label {
    left: unset;
    right: 1em;
}

.dkc-field--dark .dkc-input {
    grid-area: input;
    padding: 0.7em 0.375em 0.7em 2em;
    border-radius: 4px 0 0 4px;
    color: var(--white);
    background-color: var(--onyx-grey);
    box-shadow: 0 0 0 1px var(--onyx-grey);
}

.rtl .dkc-field--dark .dkc-input {
    border-radius: 0 4px 4px 0;
    padding: 0.7em 2em 0.7em 0.375em;
}

.dkc-field--dark .dkc-dropdown {
    grid-area: dd;
    border-radius: 0 4px 4px 0;
    color: var(--white);
    background-color: var(--onyx-grey);
    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAcCAYAAAByDd+UAAAACXBIWXMAAAsSAAALEgHS3X78AAAApklEQVRIie3W3QnDMAwE4Gsm8AjdoKtkBI3QETJiu0E2uaDgQsif5TQWIVhw4Bf7Qw8SfpCEZzWuWgVvAwYAHwAsHDWCjoUeXk4NfrXDpxOmFRR8O4IddNOQFJYvGbdaBEuj8nOmYClUpsYcPBuV+ftr4FnoAtsD/0VXsRR4FN3ELGAuuotZQSuaxHLAFGrCcsEt1IwdATUtyT6mzb1ff20VvDgIYAC0hrX/6mrNPwAAAABJRU5ErkJggg==");
    box-shadow: 0 0 0 1px var(--onyx-grey);

}

.rtl .dkc-field--dark .dkc-dropdown {
    border-radius: 4px 0 0 4px;
}

.cdc-current {
    grid-column: 1 / 2;
}

.cdc-formula {
    grid-column: 2 / 4;
    height: min-content;
    margin: 0 auto 15px;
    padding: 1em;
    border-radius: 4px;
    background: var(--white);
    color: var(--onyx-grey);
}

.cdc-formula_title {
    margin-top: 0;
    padding: 0 0 0.25em;
    color: var(--onyx-grey);
    text-transform: uppercase;
    border-bottom: 1px solid var(--onyx-grey);

}

.cdc-formula_notation {
    display: block;
    width: 200px;
    height: 60px;
    margin: 1em auto;
}

.cdc-content {
    grid-column: 1 / 3;
}

.cdc-resistor {
    margin-top: 20px;
}

.cdc-resistor {
    display: none;
    margin-bottom: 1em;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr;
    grid-gap: 2em;
}

.cdc-resistor.active {
    display: grid;
}

.cdc-resistor .dkc-field--dark {
    align-self: flex-end;
}

.cdc-diagram {
    grid-column: 3 / 4;
    object-fit: contain;
    width: 100%;
    padding: 10px;
    text-align: center;
    border-radius: 4px;
    background: var(--white);
    box-sizing: border-box;
}

.cdc-diagram_img {
    max-width: 100%;
}

.resistor-buttons {
    display: block;
    margin: 15px 0 0;
}

/* MEDIA QUERIES */
@media screen and (max-width: 768px) {
    .dkc-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        grid-template-areas: 'app' 'side' 'related';
    }

    .dkc-app {
        grid-template-columns: 1fr;
    }

    .related-tools-wrap ul {
        grid-template-columns: 1fr 1fr;
    }

}

@media screen and (max-width: 450px) {
    .cdc-resistor.active {
        display: block;
    }

    .dkc-field--dropUnit {
        margin-bottom: 1em;
    }

    .related-tools-wrap ul {
        grid-template-columns: 1fr;
    }

    .resistor-buttons>button {
        min-width: 120px;
        width: 100%;
        padding: 12px 40px;
        border-radius: 22px;
    }
}