body {
    background-color: white;
    color: black;
    font-family: monospace;
}

section {
    border-top: 1px solid black;
    clear: both;
    padding: 1em;
}

h2 {
    margin-top: 0;
}

table {
    border-collapse: collapse;
}

td {
    border: 1px solid black;
    padding: 0.2em 0.5em;
}

ul {
    list-style-type: none;
}

button {
    border-width: 1px;
}

.instruction {
    background-color: #eee;
    padding: 0.5em;
}

.button {
    padding: 0.2em;
}

.red {
    background-color: red;
    color: white;
}

.yellow {
    background-color: yellow;
    color: black;
}

.blue {
    background-color: blue;
    color: white;
}

.green {
    background-color: green;
    color: white;
}

.white {
    background-color: white;
    border-color: black;
    color: black;
}

.black {
    background-color: black;
    color: white;
}

.litIndicator {
    color: white;
    border: 1px outset red;
    text-shadow: 0px 0px 3px yellow, 0px 0px 3px yellow;
    background: black;
    padding: 0 3px 3px;
}

.litIndicator:before {
    content: '\2022\a0';
}

.button.white {
    border: 1px solid black;
}

section .active {
    /* ugh, specificity */
    opacity: 1;
}

.inactive {
    opacity: 0.3;
}

h2 {
    cursor: pointer;
}

.collapsed {
    padding: 0;
}

.collapsed * {
    display: none;
}

.collapsed h2 {
    display: block;
    font-size: small;
    margin: 0;
}

.jsResetSection {
    display: block;
}

nav {
    background-color: white;
    border-left: 1px solid black;
    border-top: 1px solid black;
    position: fixed;
    bottom: 0;
    right: 0;
}

#navList {
    line-height: 150%;
    list-style-type: none;
    margin: 0;
    padding: 0.1em 0.5em;
}

#sectionWires button {
    border-color: black;
    cursor: pointer;
    width: 2em;
    height: 2em;
}

#wireOptions li {
    display: inline-block;
}

#wireList {
    list-style-type: decimal;
}

.wireToCut:after {
    color: green;
}

.wireToCut:after,
.wireToCut.odd.even:after {
    content: '\27fd';
}

.wireToCut.odd:after {
    content: '\27fd\a0 seriové číslo liché';
}

.wireToCut.even:after {
    content: '\27fd\a0 seriové číslo sudé';
}

#sectionButton {
    line-height: 150%;
}

#sectionButton div {
    margin-bottom: 1em;
}

#sectionButton .buttonWhite {
    border-style: solid;
    border-width: 1px;
}

#sectionKeypads ul {
    display: inline-block;
    list-style-type: none;
    margin-right: 2em;
    padding-left: 0;
}

#sectionKeypads li {
    border: 1px solid black;
    border-bottom: 0;
    cursor: pointer;
    line-height: 0;
}

#sectionKeypads li:last-child {
    border-bottom: 1px solid black;
}

#sectionKeypads .selected {
    background-color: #ff6;
}

#sectionKeypads ul[data-count='4'] .selected {
    background-color: lightgreen;
}

#simonInputs {
    float: left;
    margin-right: 5em;
}

.collapsed #simonBoard {
    display: none;
}

#simonBoard {
    display: inline-block;
    padding-bottom: 40px;
    /* Compensate for height increase as a result of rotation */
    position: relative;
    transform: rotate(45deg);
}

#simonBoard>div>div {
    border: 2px solid black;
    display: inline-block;
    height: 64px;
    width: 64px;
}

#simonBoard>.simonRow:first-child>div {
    border-top-width: 4px;
}

#simonBoard>.simonRow:first-child+div>div {
    border-bottom-width: 4px;
}

#simonBoard>.simonRow>div:first-child {
    border-left-width: 4px;
}

#simonBoard>.simonRow>div:last-child {
    border-right-width: 4px;
}

.simonRed {
    background: radial-gradient(#fb9a9a, #fc7373, red);
}

.simonYellow {
    background: radial-gradient(#fbfb9a, #fcfc73, yellow);
}

.simonBlue {
    background: radial-gradient(#9a9afb, #7373fc, blue);
}

.simonGreen {
    background: radial-gradient(#98c998, #72b772, green);
}

.arrow {
    background-color: black;
    height: 10px;
    width: 50px;
    opacity: 0;
    position: absolute;
}

.arrow::after {
    content: '';
    border-top: 10px solid transparent;
    border-left: 20px solid black;
    border-bottom: 10px solid transparent;
    height: 0;
    width: 0;
    margin-left: 50px;
    position: absolute;
    top: -5px;
}

#arrowRB {
    top: 70px;
    left: 10px;
    transform: rotate(-90deg);
}

#arrowBR {
    top: 60px;
    left: 10px;
    transform: rotate(90deg);
}

#arrowBY {
    top: 30px;
    left: 45px;
}

#arrowYB {
    top: 30px;
    left: 45px;
    transform: rotate(180deg);
}

#arrowYG {
    top: 60px;
    left: 80px;
    transform: rotate(90deg);
}

#arrowGY {
    top: 70px;
    left: 80px;
    transform: rotate(-90deg);
}

#arrowGR {
    top: 100px;
    left: 45px;
    transform: rotate(180deg);
}

#arrowRG {
    top: 100px;
    left: 45px;
}

#arrowRY {
    top: 66px;
    left: 44px;
    transform: rotate(-45deg);
}

#arrowYR {
    top: 66px;
    left: 44px;
    transform: rotate(135deg);
}

#arrowBG {
    top: 64px;
    left: 44px;
    transform: rotate(45deg);
}

#arrowGB {
    top: 64px;
    left: 44px;
    transform: rotate(-135deg);
}

#sectionWof {
    white-space: nowrap;
}

#sectionWof dl,
#sectionWof table {
    display: inline-block;
    margin-bottom: 1em;
}

#sectionWof.collapsed dl,
#sectionWof.collapsed table {
    display: none;
}

#sectionWof dl {
    margin-right: 4em;
}

#sectionWof dt {
    background-color: black;
    clear: left;
    color: white;
    margin-right: 1em;
    text-align: center;
    width: 6em;
}

#sectionWof dd {
    margin-bottom: 0.4em;
    margin-left: 0;
}

#sectionWof dt,
#sectionWof dd {
    display: block;
    float: left;
}

#sectionWof dt.inactive+dd {
    opacity: 0;
}

#sectionWof table {
    margin-left: 0.5em;
}

#sectionWof th {
    border: 1px solid black;
}

#sectionMemory table {
    margin-top: 1em;
}

#sectionMemory td {
    text-align: right;
}

#sectionMemory input {
    text-align: center;
    width: 5em;
}

#sectionMorse table {
    float: left;
    margin-bottom: 1em;
    margin-right: 1em;
}

#sectionSequence button {
    cursor: pointer;
    width: 2em;
}

#sequenceOptions {
    padding-left: 0;
    width: 9.5em;
}

#sequenceOptions li {
    display: inline-block;
}

#sequenceInstruction {
    list-style-type: decimal;
}

#sequenceInstruction button {
    margin-right: 0.2em;
}

#sectionVenn2 td {
    height: 1.5em;
    width: 1em;
}

#sectionMaze .mazebg {
    display: inline-block;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    width: 180px;
    height: 220px;
    background-repeat: no-repeat;
    background-position-x: 0px;
    background-position-y: 13px;
}

#sectionMaze ul {
    display: inline-block;
    list-style-type: none;
    margin-right: 0em;
    padding-left: 0;
}

#sectionMaze li {
    border: 0px solid black;
    border-bottom: 0;
    cursor: pointer;
    line-height: 0;
}

#sectionMaze li:last-child {
    border-bottom: 0px solid black;
}

#sectionMaze .selected {
    background-color: rgba(235, 247, 9, 0.5);
}

#sectionMaze .hinted {
    background-color: rgba(185, 209, 3, 0.5);
}

#sectionMaze .marked {
    background-color: rgba(8, 246, 246, 0.5);
}


#sectionKnob {
    white-space: nowrap;
}

#sectionKnob dl {
    display: inline-block;
    margin-bottom: 1em;
}

#sectionKnob.collapsed dl {
    display: none;
}

#sectionKnob dl {
    margin-right: 4em;
}

#sectionKnob dt {
    background-color: black;
    clear: left;
    color: white;
    margin-right: 1em;
    text-align: center;
    width: 7.3em;
    margin-left: 4px;
    white-space: pre-wrap;
    font-family: monospace;
}

#sectionKnob dd {
    margin-bottom: 0.4em;
    margin-left: 0;
}

#sectionKnob dt,
#sectionKnob dd {
    display: block;
    float: left;
}

#sectionKnob dt.inactive+dd {
    opacity: 0;
}

#sectionKnob th {
    border: 1px solid black;
}