html {
  font-family: "Montserrat", sans-serif;
}

body {
  background-color: #14151f;
}

button {
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  opacity: 0.8;
}
button:hover {
  opacity: 1;
}
button:active {
  opacity: 0.8;
}

.controls {
  display: grid;
  grid-template-columns: 0.5fr 1fr 1fr 1fr 0.5fr;
  align-items: center;
  justify-content: center;
  margin-top: 3em;
  gap: 1em;
}
.controls .drop-container {
  display: flex;
  justify-content: center;
}
.controls .drop-container .drop {
  position: relative;
  display: inline-flex;
}
.controls .drop-container .drop button {
  flex-shrink: 0;
  border: none;
  border-radius: 10px;
  padding: 1em 1em 1em 1em;
  background: lime;
  width: 7em;
}
.controls .drop-container .drop input[type=checkbox] {
  display: none;
}
.controls .drop-container .drop input[type=checkbox]:not(:checked) + label .checked {
  visibility: hidden;
}
.controls .drop-container .drop label[for=checkbox] {
  position: absolute;
  left: calc(100%);
  height: 100%;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0 10px 10px 0;
  padding: 0 0.5em;
  opacity: 0.8;
}
.controls .drop-container .drop label[for=checkbox]:hover {
  opacity: 1;
}
.controls .drop-container .drop label[for=checkbox]:hover .box {
  background-color: rgba(255, 255, 255, 0.1);
}
.controls .drop-container .drop label[for=checkbox]:active {
  opacity: 0.8;
}
.controls .drop-container .drop label[for=checkbox] .box {
  position: relative;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 0.2em;
  width: 0.8em;
  height: 0.8em;
}
.controls .drop-container .drop label[for=checkbox] .box:after {
  font-size: 0.6em;
  vertical-align: middle;
  position: absolute;
  left: calc(100% + 0.4em);
  color: #fff;
  content: "auto";
}
.controls .drop-container .drop label[for=checkbox] .box svg {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

#balls,
#multiplier {
  position: relative;
  font-weight: 900;
  font-size: 2.2em;
  margin-right: auto;
  color: rgba(255, 255, 255, 0.2);
}
#balls:before,
#multiplier:before {
  content: "-";
  position: absolute;
  bottom: 100%;
  font-size: 0.3em;
  font-weight: 400;
}

#balls:before {
  content: "Balls";
}

#multiplier {
  text-align: right;
}
#multiplier:before {
  content: "Drop";
  right: 0;
}

.canvas-container {
  display: flex;
  align-items: center;
  justify-content: center;
}
.canvas-container canvas {
  display: block;
  margin: auto;
}

.notes {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 5px;
}
.notes .note {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 27px;
  aspect-ratio: 30/26;
  border-radius: 5px;
  background-color: gray;
  flex-shrink: 0;
  border-bottom: solid 4px yellow;
  text-align: center;
  font-size: 0.8em;
  font-weight: 600;
}
.notes .note[data-pressed=true] {
  animation: press 0.5s;
}
@keyframes press {
  0% {
    border-bottom-width: 4px;
  }
  50% {
    border-bottom-width: 0;
  }
  100% {
    border-bottom-width: 4px;
  }
}
.notes .note:nth-child(1), .notes .note:nth-child(17) {
  background-color: #0f3;
  border-color: #0a0;
}
.notes .note:nth-child(2), .notes .note:nth-child(16) {
  background-color: #1f3;
  border-color: #0a0;
}
.notes .note:nth-child(3), .notes .note:nth-child(15) {
  background-color: #3f2;
  border-color: #0a0;
}
.notes .note:nth-child(4), .notes .note:nth-child(14) {
  background-color: #4f2;
  border-color: #0a0;
}
.notes .note:nth-child(5), .notes .note:nth-child(13) {
  background-color: #6f2;
  border-color: #0a0;
}
.notes .note:nth-child(6), .notes .note:nth-child(12) {
  background-color: #7f1;
  border-color: #3a0;
}
.notes .note:nth-child(7), .notes .note:nth-child(11) {
  background-color: #9f1;
  border-color: #4a0;
}
.notes .note:nth-child(8), .notes .note:nth-child(10) {
  background-color: #af0;
  border-color: #6a0;
}
.notes .note:nth-child(9) {
  background-color: #cf0;
  border-color: #7a0;
}