style.css

[v-cloak] {
  display: none;
}

html {
  touch-action: none;
  pointer-events: none;
  user-select: none;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  background: #fff;
  color: #333;
}

#app {
  display: flex;
  width: 100%;
  height: 100%;
}

.container {
 	position: relative;
  display: flex;
  flex-direction: column;
  width: calc(100vh - 10rem);
  height: 100vh;
  max-width: 100vw;
  max-height: calc(100vw + 10rem);
  margin: auto;
}

.board-header {
 	position: relative;
  display: flex;
  height: 4rem;
  justify-content: flex-end;
}

.goal-sign {
  max-width: 100%;
  max-height: 100%;
}

.board-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 6rem;
}

.arrow-container {
  display: grid;
  grid-template:
    "  .   up    .  "
    "left down right";
  align-items: center;
}

.arrow {
  font: 3rem/1 sans-serif;
  cursor: pointer;
  pointer-events: auto;
}

.arrow-up {
  grid-area: up;
}

.arrow-down {
  grid-area: down;
}

.arrow-left {
  grid-area: left;
}

.arrow-right {
  grid-area: right;
}

.board {
  position: relative;
  display: grid;
  grid-template-columns: repeat(var(--width), 1fr);
  grid-template-rows: repeat(var(--height), 1fr);
  height: calc(100% - 10rem);
}

.wall {
  background: url("https://cdn.glitch.com/38572a42-87ea-47a9-8d6f-0c657f668a74/sisisin.jpg") center / cover no-repeat;
}

.player {
  background: url("https://cdn.glitch.com/38572a42-87ea-47a9-8d6f-0c657f668a74/knzw.png") 47% 5% no-repeat;
  background-size: 170%;
  border-radius: 50%;
}

.splash {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-color: #fff;
  text-align: center;
}

.wasd {
  margin-top: 5%;
  color: #0003;
}

.wasd > .key {
  display: inline-block;
  margin: 0.1em 0.3em;
  border: 1px solid #0003;
  border-radius: 0.2em;
  padding: 0.3em 0.6em;
  font: 1.5em/1 monospace;
  text-transform: uppercase;
  transform: scaleX(1.2);
  box-shadow: inset 0 -0.15em, 0 0.2em 0.2em #0001;
}

.start {
  position: absolute;
  left: 50%;
  top: 50%;
  font: bold 5rem/1 sans-serif;
  color: #718cc6;
  white-space: nowrap;
  transform: translate(-50%, -50%) translateY(-100%);
  opacity: 0;
  transition: 1s ease-in;
}

.retry {
  position: absolute;
  right: 12%;
  top: calc(3rem + 8%);
  max-width: 50%;
  transform-origin: right top;
  transition: 300ms;
}

.retry:hover {
  animation: 0.1s vibrate-small infinite;
}

.fade-enter,
.fade-leave-to {
  opacity: 0;
}

.flash-enter {
  opacity: 1;
  transform: translate(-50%, -50%);
}

.pointer {
  pointer-events: auto;
}

@keyframes bounce {
   0% { transform: scale(0.95) }
 100% { transform: scale(1.05) }
}

.bounce {
  animation: bounce 500ms ease-in-out alternate infinite;
}

@keyframes vibrate {
    0% { transform: translate(-0.2rem, -0.2rem); }
   25% { transform: translate( 0.2rem,  0.2rem); }
   50% { transform: translate(-0.2rem,  0.2rem); }
   75% { transform: translate( 0.2rem, -0.2rem); }
  100% { transform: translate(-0.2rem, -0.2rem); }
}

@keyframes vibrate-small {
    0% { transform: translate(-0.1rem, -0.1rem); }
   25% { transform: translate( 0.1rem,  0.1rem); }
   50% { transform: translate(-0.1rem,  0.1rem); }
   75% { transform: translate( 0.1rem, -0.1rem); }
  100% { transform: translate(-0.1rem, -0.1rem); }
}

.vibrate {
  animation: 0.1s vibrate infinite;
}

.vibrate-small {
  animation: 0.1s vibrate-small infinite;
}

.modal {
  display: flex;
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-color: #0008;
  z-index: 9999;
  transition: 300ms;
  pointer-events: auto;
}

.modal-container {
  margin: auto;
  padding: 20px 30px;
  background-color: #fff;
  border-radius: 4px;
  text-align: center;
  box-shadow: 0 2px 8px #0006;
  transition: 300ms;
}

.modal-body {
  margin-top: 1rem;
}

.modal-header {
  white-space: nowrap;
}

.modal-enter,
.modal-leave-to {
  opacity: 0;
}

.modal-enter > .modal-container,
.modal-leave-to > .modal-container {
  transform: scale(1.1);
}

.ia-1 {
  font-family: "Arial", sans-serif;
}

.ia-2 {
  font-size: 2em;
  font-family: "Vollkorn", serif;
}

.knzw {
  max-width: 100%;
}

.time {
  background: #010;
  border-radius: 0.1em;
  color: #fff;
  background-image: linear-gradient(-45deg, #fff0 90%, #fffe 95%, #fffc 95%, #fff0 100%);
  text-shadow: 0 0 0.1em #ff0;
  font: 2rem bold;
}