body {
  position: fixed;
  width: 100%;
  margin: 0;
  font-family: 'iosevka ss05', Menlo, 'Andale Mono', monospace;
  touch-action: manipulation;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
}
#app {
  height: 100vh;
}
.main {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-sizing: border-box;
  opacity: 0;
  transition: opacity 1.6s ease-in-out;
}
.main.has-initially-loaded {
  opacity: 1;
}
.board-container {
  width: 90vw;
  margin: 0 auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
@media (min-width: 768px) {
  .board-container {
    padding: 1em 0;
  }
}
.above-board,
.below-board {
  display: flex;
  padding: 0.3em 0;
}
.above-board span,
.below-board span {
  padding: 0 0.4em;
  font-family: serif;
  font-size: 0.8em;
  transition: opacity 0.4s ease-in-out;
}
.minus,
.plus {
  position: relative;
  top: 3px;
  right: -5px;
  padding: 2px 8px;
  color: #888;
  transition: opacity 0.4s ease-in-out;
  cursor: pointer;
}
.minus:hover,
.plus:hover {
  color: #333;
}
.minus:active,
.plus:active {
  color: #000;
}
.mode-selection {
  position: relative;
  right: -5px;
  padding: 3px 2px;
  color: #bbb;
  transition: color 0.4s ease-in-out;
  cursor: pointer;
}
.mode-selection:hover {
  color: #333;
}
.mode-selection:active {
  color: #000;
}
.mode-selection.is-selected {
  color: #333;
  cursor: default;
}
.above-board {
}
.above-board .left {
  position: relative;
  left: -3px;
}
.above-board .right {
  flex: 1;
  text-align: right;
}
.arrow-left,
.arrow-right {
  position: relative;
  padding: 3px 7px;
  font-size: 1.1em;
  cursor: pointer;
}
@media (min-width: 400px) {
  .arrow-left,
  .arrow-right {
    padding: 2px 6px;
    cursor: pointer;
    font-size: 0.9em;
  }
}
.board {
  position: relative;
  width: 100%;
  margin: 0 auto;
  text-align: center;
  border: 2px solid #222;
}
.board-inner {
  position: relative;
  left: 0;
  top: 0;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-gap: 1px;
  background: #ccc;
  text-align: center;
}
.board-horizontal-lines,
.board-vertical-lines {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  pointer-events: none;
}
.board-horizontal-lines:before,
.board-horizontal-lines:after,
.board-vertical-lines:before,
.board-vertical-lines:after {
  content: '';
  position: absolute;
  background: #222;
  z-index: 1;
}
.board-horizontal-lines:before,
.board-horizontal-lines:after {
  top: 0;
  bottom: 0;
  width: 2px;
  height: 100%;
}
.board-horizontal-lines:before {
  left: calc(33% - 1px);
}
.board-horizontal-lines:after {
  right: calc(33% - 1px);
}
.board-vertical-lines:before,
.board-vertical-lines:after {
  left: 0;
  right: 0;
  width: 100%;
  height: 2px;
}
.board-vertical-lines:before {
  top: calc(33% - 1px);
}
.board-vertical-lines:after {
  bottom: calc(33% - 1px);
}
.below-board {
  min-height: 22px;
}
.below-board .left {
  flex: 1;
  position: relative;
  left: -3px;
}
.below-board .right {
  text-align: right;
}
.constrain-width {
  width: 100%;
  margin: 0 auto;
}
@media (min-width: 480px) {
  .constrain-width {
    width: 80%;
  }
}
@media (min-width: 768px) {
  .constrain-width {
    width: 70%;
  }
}
@media (min-width: 768px) {
  .constrain-width {
    width: 62vh;
  }
}
.square {
  position: relative;
  height: 0;
  padding-bottom: 100%;
  background: white;
}
input {
  width: 90%;
  height: 100%;
  position: absolute;
  border: 0;
  transform: translateX(-50%);
  text-align: center;
  background: none;
  border-radius: 0;
  outline: none;
}
@media (min-width: 768px) {
  input {
    font-size: 16px;
  }
}
@media (min-width: 1200px) {
  input {
    font-size: 18px;
  }
}
@media (min-width: 1600px) {
  input {
    font-size: 20px;
  }
}
input[type='text']:focus {
  box-shadow: none;
  border: 0;
}

.button-container {
  text-align: center;
  padding: 2vh 0 14vh;
}
@media (min-width: 400px) {
  .button-container {
    padding: 2vh 0 12vh;
  }
}
@media (min-width: 768px) {
  .button-container {
    padding: 2vh 0 8vh;
  }
}
.button-indicator {
  position: relative;
  display: inline-block;
}
.button-indicator:before {
  content: '';
  position: absolute;
  bottom: 0;
  height: 5px;
  width: 100%;
}
.button-indicator.is-solving:before {
  background: #ccc;
}
.button-indicator.is-timeout:before {
  background: #ffbad1;
}
.button-indicator.is-no-solution:before {
  background: #ff8c94;
}
.button-indicator.is-success:before {
  background: #b1e597;
}
.button-indicator.is-solving button,
.button-indicator.is-timeout button,
.button-indicator.is-no-solution button,
.button-indicator.is-success button {
  pointer-events: none;
}
.button-indicator.is-solving button {
  background: #333;
  cursor: progress;
}
.button-indicator.is-timeout button,
.button-indicator.is-no-solution button {
  background: #555;
  cursor: not-allowed;
}
.button-indicator.is-success button {
  background: #555;
  cursor: default;
}
button {
  position: relative;
  margin-bottom: 5px;
  padding: 1.4em 4.6em;
  font-family: monospace;
  font-weight: bold;
  color: white;
  background: #222;
  box-shadow: none;
  border: 2px solid transparent;
  outline: none;
  cursor: pointer;
  overflow: hidden;
}
@media (min-width: 1600px) {
  button {
    font-size: 1.05em;
  }
}
@media (min-width: 1800px) {
  button {
    font-size: 1.1em;
  }
}
button:hover {
  background: #333;
}
button:active {
  background: #444;
}
.em {
  font-style: italic;
  cursor: default;
}
.is-dimmed {
  opacity: 0.5;
}
.is-disabled {
  opacity: 0.3;
  pointer-events: none;
  cursor: default;
}
.is-hidden {
  opacity: 0;
  pointer-events: none;
}