body {
  font-family: Arial, sans-serif;
  background: url('https://images.unsplash.com/photo-1506744038136-46273834b3fb?auto=format&fit=crop&w=1600&q=80');
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  text-align: center;
  margin: 0;
  padding: 20px;
  color: #fff;
  overflow-x: hidden;
}
h1 {
  color: darkred;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.6);
}
.board {
  display: grid;
  grid-template-columns: repeat(3, 120px);
  grid-gap: 8px;
  justify-content: center;
  margin: 30px auto;
  position: relative;
  z-index: 1;
}
.cell {
  width: 120px;
  height: 120px;
  background: darkred;
  border: 2px solid #0288d1;
  border-radius: 12px;
  font-size: 2.5em;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

}
#status {
  font-size: 1.6em;
  font-weight: bold;
  margin: 20px 0;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.6);
  position: relative;
  z-index: 1;
}
button {
  padding: 10px 20px;
  font-size: 1.1em;
  background: #0288d1;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  position: relative;
  z-index: 1;
}
button:hover {
  background: #0277bd;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes popInOutLetter {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0; transform: scale(0.7); }
}
@keyframes dance {
  0% { transform: translateX(0) rotate(0deg); }
  25% { transform: translateX(-5px) rotate(-10deg); }
  50% { transform: translateX(5px) rotate(10deg); }
  75% { transform: translateX(-5px) rotate(-10deg); }
  100% { transform: translateX(0) rotate(0deg); }
}

.cell.winner {
  animation: spin 1s linear infinite;
  background: darkred;
}
.cell.winner .letter {
  display: inline-block;
  animation: popInOutLetter 1s ease-in-out infinite, dance 0.5s infinite;
}

#flyingLetter {
  position: fixed;
  top: 50%;
  left: -200px;
  font-size: 200px;
  font-weight: bold;
  color: rgba(255,255,255,0.9);
  text-shadow: 3px 3px 6px rgba(0,0,0,0.5);
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transform: scale(1);
  animation: none;
}
@keyframes flyAcross {
  0%   { left: -200px; opacity: 1; transform: scale(1); }
  50%  { opacity: 0.5; transform: scale(1.5); }
  100% { left: 120vw; opacity: 1; transform: scale(1); }
}

#fireworksCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}

@keyframes shake {
  0% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(-2px, 0) rotate(-5deg); }
  50% { transform: translate(2px, 0) rotate(5deg); }
  75% { transform: translate(-2px, 0) rotate(-5deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}
.emoji-shake {
  display:inline-block;
  margin-left:10px;
  animation: shake 0.5s infinite;
}