body {
  background: #111;
  color: #eee;
  font-family: sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.compass-container {
  position: relative;
  width: 80vmin;
  height: 80vmin;
}

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

.grid-btn {
  border: 1px solid #333;
  cursor: pointer;
  transition: transform 0.1s;
}
.grid-btn:hover {
  transform: scale(1.05);
}

.grid-btn.voted {
  outline: 2px solid white;
}

/* Axis lines */
.grid::before,
.grid::after {
  content: "";
  position: absolute;
  background: #555;
}
.grid::before {
  width: 2px;
  height: 100%;
  left: 50%;
  top: 0;
  transform: translateX(-1px);
}
.grid::after {
  height: 2px;
  width: 100%;
  top: 50%;
  left: 0;
  transform: translateY(-1px);
}

/* Labels */
.label {
  position: absolute;
  color: #ccc;
  font-weight: 600;
  font-size: 1.1em;
  pointer-events: none;
}

.label.top {
  top: -2em;
  left: 50%;
  transform: translateX(-50%);
}
.label.bottom {
  bottom: -2em;
  left: 50%;
  transform: translateX(-50%);
}
.label.left {
  left: -3em;
  top: 50%;
  transform: translateY(-50%) rotate(-90deg);
}
.label.right {
  right: -3em;
  top: 50%;
  transform: translateY(-50%) rotate(90deg);
}