* {
  box-sizing: border-box;
}

.visually-hidden:not(:focus):not(:active),
input[type="checkbox"].visually-hidden,
input[type="radio"].visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;
  white-space: nowrap;
  clip-path: inset(100%);
  clip: rect(0 0 0 0);
  overflow: hidden;
}

body {
  margin: 0;
  background-color: #333a48;
}

.controls {
  margin-bottom: 24px;
  font-family: "Courier New", monospace;
  font-size: 18px;
  line-height: 22px;
  color: #eff1f5;
  border-bottom: 2px solid #20262d;
  background-color: #485671;
}

.container {
  width: 326px;
  height: 66px;
  margin: 0 auto;
  padding: 12px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chosen-color {
  display: flex;
  padding: 8px 36px 8px 12px;
  font: inherit;
  color: inherit;
  border: 2px solid #20262d;
  border-radius: 0;
  -moz-appearance: none;
  -webkit-appearance: none;
  appearance: none;
  background-repeat: no-repeat;
  background-position: right 8px top 50%;
  background-size: 14px auto;
  background-color: #485671;
  background-image: url("img/pixel-arrow-down.svg");
}

.chosen-color::-ms-expand {
  display: none;
}

.chosen-color:focus {
  outline: 2px dashed #6e86b3;
  outline-offset: 2px;
}

.chosen-color:hover {
  background-color: #304153;
}

.eraser-label {
  position: relative;
  padding: 8px 0 8px 40px;
  cursor: pointer;
}

.eraser-label::before {
  position: absolute;
  content: "";
  left: 6px;
  top: 6px;
  width: 20px;
  height: 20px;
  border: 2px solid #20262d;
}

.eraser:checked + .eraser-label::before {
  background-color: #20262d;
  background-image: url("img/pixel-check.svg");
  background-position: center;
  background-repeat: no-repeat;
}

.eraser:focus + .eraser-label::before {
  outline: 2px dashed #6e86b3;
  outline-offset: 2px;
}

.eraser-label:hover::before {
  background-color: #304153;
}

.eraser-label:active::before {
  background-color: #20262d;
  border-color: #485671;
}

.eraser-label::after {
  position: absolute;
  content: "";
  left: 6px;
  top: 6px;
  width: 24px;
  height: 24px;
  background: url("img/cut-corners.svg");
  background-repeat: no-repeat;
}

.main {
  position: relative;
  height: calc(100vh - 92px);
  width: 326px;
  margin: 0 auto;
}

.main::before {
  position: absolute;
  content: "";
  bottom: 0;
  left: -120px;
  width: 100px;
  height: 105px;
  background-image: url("img/pixel-keks.svg");
  background-repeat: no-repeat;
}

.canvas {
  display: flex;
  flex-wrap: wrap;
  border: 3px solid #20262d;
}

.pixel {
  width: 40px;
  height: 40px;
  border: 1px solid #333a48;
  background-color: #ffffff;
  cursor: pointer;
}