index.css

:root {
  --color-base: hsl(0, 0%, 55%);
  --color-light: hsl(0, 0%, 90%);
  --color-dark: hsl(0, 0%, 10%);
  --controls-size: 10vh;
  --text-shadow-size: 0.65vh;
}

@media (orientation: landscape) {
  :root {
    --controls-size: 20vh;
    --text-shadow-size: 1.3vh;
  }
}

html {
  touch-action: none;
}

body {
  margin: 0;
  background: #484050;
}

#app {
  display: flex;
  justify-content: center;
}

#app > div:first-child {
  transform-origin: top !important;
}

#touchControls:not(.visible) {
  display: none;
}

#dpad, #apad {
  position: fixed;
  bottom: 1rem;
  z-index: 3;
}

@media (orientation: portrait) {
  #dpad, #apad {
    bottom: calc(1rem + env(safe-area-inset-bottom));
  }
}

#dpad {
  left: 1rem;
}

#apad {
  right: 1rem;
}

#dpad svg {
  width: calc(2 * var(--controls-size));
  height: calc(2 * var(--controls-size));
  fill: var(--color-base);
}

#dpad svg rect {
  opacity: 0.6;
}

#apad > * {
  width: var(--controls-size);
  height: var(--controls-size);
}

#apad .apadBtn {
  width: var(--controls-size);
  height: var(--controls-size);
  background-color: var(--color-base);
  border-radius: 50%;
}

#apad .apadLabel {
  font-family: 'emerald';
  font-size: var(--controls-size);
  text-shadow: var(--color-dark) var(--text-shadow-size) var(--text-shadow-size);
  color: var(--color-light);
  user-select: none;
}

#apad .apadLabelSmall {
  font-size: calc(var(--controls-size) / 3);
  text-shadow: var(--color-dark) calc(var(--text-shadow-size) / 3) calc(var(--text-shadow-size) / 3);
}

#apad #apadLabelAction, #apad #apadLabelCancel {
  margin-left: calc(var(--controls-size) / 3);
  line-height: 0.9;
}

#apad > :nth-child(2) {
  position: relative;
  right: var(--controls-size);
}

#apad .apadRectBtn {
  position: relative;
  text-align: center;
  padding-right: 10%;
  border-radius: 10%;
  bottom: calc(var(--controls-size) * 0.05);
  width: calc(var(--controls-size) * 0.6);
  height: calc(var(--controls-size) * 0.3);
}

#apad .apadSqBtn {
  border-radius: 10%;
  width: calc(var(--controls-size) * 0.3);
  height: calc(var(--controls-size) * 0.3);
}

#apad .apadBtnContainer {
  position: relative;
  display: flex;
}

#apad .apadRectBtnContainer {
  flex-wrap: wrap;
  margin-top: calc(var(--controls-size) * -0.8);
  left: calc(var(--controls-size) * 0.175);
  height: calc(var(--controls-size) * 0.8);
}

#apad .apadSqBtnContainer {
  flex-wrap: wrap;
  justify-content: space-evenly;
  align-items: center;
  margin-bottom: calc(var(--controls-size) * -0.8);
  top: calc(var(--controls-size) * -0.9);
  width: calc(var(--controls-size) * 0.8);
  height: calc(var(--controls-size) * 0.8);
}

#apad .apadRectBtnContainer > #apadMenu {
  align-self: flex-end;
}

#apad .apadRectBtnContainer > .apadSqBtn:not(:first-child) {
  margin-left: 10%;
}

#touchControls:not([data-ui-mode='STARTER_SELECT']):not([data-ui-mode='SETTINGS']):not([data-ui-mode='SETTINGS_GAMEPAD']):not([data-ui-mode='SETTINGS_KEYBOARD']) #apad .apadRectBtnContainer > .apadSqBtn,
#touchControls:not([data-ui-mode='STARTER_SELECT']):not([data-ui-mode='SETTINGS']):not([data-ui-mode='SETTINGS_GAMEPAD']):not([data-ui-mode='SETTINGS_KEYBOARD']) #apad .apadSqBtnContainer
{
  display: none;
}

#touchControls:not([data-ui-mode='COMMAND']):not([data-ui-mode='FIGHT']):not([data-ui-mode='BALL']):not([data-ui-mode='TARGET_SELECT']) #apad .apadBattle {
  display: none;
}

#apad .apadRectBtnContainer + .apadSqBtnContainer {
  top: calc(var(--controls-size) * -1.9);
  left: calc(var(--controls-size) * -0.9);
}

#apad .apadBtnContainer .apadLabel {
  margin-left: calc(var(--controls-size) / 12);
  line-height: 0.8;
}

#dpad path:not(.active), #apad .apadBtn:not(.active) {
  opacity: 0.6;
}

#layout:fullscreen #dpad, #layout:fullscreen #apad {
  bottom: 6rem;
}

input:-internal-autofill-selected {
  -webkit-background-clip: text;
  background-clip: text;
}
#banner {
  display: none;
  position: absolute;
  top: 33.2%;
  left: 0;
  text-align: center;
  z-index: 1000; /* Ensures the banner is on top of other elements */
  & > img {
    opacity: 50%;
  }
}

/* Firefox old*/
@-moz-keyframes blink {
    0% {
        opacity:1;
    }
    50% {
        opacity:0;
    }
    100% {
        opacity:1;
    }
}

@-webkit-keyframes blink {
    0% {
        opacity:1;
    }
    50% {
        opacity:0;
    }
    100% {
        opacity:1;
    }
}
/* IE */
@-ms-keyframes blink {
    0% {
        opacity:1;
    }
    50% {
        opacity:0;
    }
    100% {
        opacity:1;
    }
}
/* Opera and prob css3 final iteration */
@keyframes blink {
    0% {
        opacity:1;
    }
    50% {
        opacity:0;
    }
    100% {
        opacity:1;
    }
}
.blink-image {
    -moz-animation: blink normal 4s infinite ease-in-out; /* Firefox */
    -webkit-animation: blink normal 4s infinite ease-in-out; /* Webkit */
    -ms-animation: blink normal 4s infinite ease-in-out; /* IE */
    animation: blink normal 4s infinite ease-in-out; /* Opera and prob css3 final iteration */
}