.star-hit.open {
  color: #f8dc75;
  font-size: 33px;
  text-shadow: 0 0 7px #fff1ab, 0 0 14px #e35b2baa;
  animation: pulse 1.25s infinite alternate;
}

.mine {
  position: absolute;
  z-index: 3;
  width: 46px;
  height: 46px;
  translate: -50% -50%;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  color: #316f69;
  animation: mineFloat 1.9s ease-in-out infinite alternate;
}

.mine > span {
  position: relative;
  z-index: 2;
  font-size: 28px;
  text-shadow: 0 0 5px #f8dfa0, 0 0 9px #316f695c;
}

.mine i {
  position: absolute;
  width: 29px;
  height: 29px;
  border: 2px dotted #316f6d94;
  border-radius: 50%;
  animation: mineSpin 3.4s linear infinite;
}

.mine.m1 { animation-delay: -.7s; }
.mine.m2 { animation-delay: -1.2s; }
.mine.hit { animation: mineBlast .45s ease-out both; }

.mine.hit > span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #b93622;
  color: #f8d87d;
  font-size: 13px;
  font-weight: 900;
  box-shadow: 0 0 0 6px #e35b2b5c;
}

.mine.hit i { display: none; }

@keyframes mineFloat {
  to { transform: translateY(-5px) rotate(9deg); }
}

@keyframes mineSpin {
  to { transform: rotate(360deg); }
}

@keyframes mineBlast {
  35% { transform: scale(1.65) rotate(18deg); }
  100% { transform: scale(1); }
}