* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  background: #121212; /* Dark background */
  text-align: center;
  min-height: 100vh;
  font-family: "Poppins", sans-serif;
  color: #f1f1f1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

h1 {
  margin-top: 10px;
  font-size: 3rem;
  color: #00aaff;
}

h2 {
  margin-top: 10px;
  font-size: 1.4rem;
  color: #bbbbbb;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.game {
  height: 60vmin;
  width: 60vmin;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 1.5vmin;
  margin-top: 20px;
  background: #1e1e1e;
  border-radius: 15px;
  padding: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
}

.box {
  border-radius: 0.8rem;
  border: none;
  font-size: 8vmin;
  font-weight: bold;
  color: #00aaff;
  background: #2a2a2a;
  cursor: pointer;
  transition: all 0.25s ease-in-out;
}

.box:hover {
  background: #333;
  transform: scale(1.05);
}

/* Winner highlight */
.win {
  background: #00aaff !important;
  color: #fff;
  animation: glow 1s infinite alternate;
}

@keyframes glow {
  from {
    box-shadow: 0 0 8px #00aaff, 0 0 15px #00aaff;
  }
  to {
    box-shadow: 0 0 20px #00ddff, 0 0 40px #00aaff;
  }
}

/* Buttons */
#reset-btn,
#new-btn {
  padding: 0.9rem 2rem;
  font-size: 1.1rem;
  background: #00aaff;
  border-radius: 0.6rem;
  border: none;
  color: #fff;
  cursor: pointer;
  margin-top: 15px;
  transition: all 0.3s;
  font-weight: 600;
}

#reset-btn:hover,
#new-btn:hover {
  transform: scale(1.08);
  background: #0088cc;
}

#msg {
  font-size: 5vmin;
  margin-bottom: 12px;
  color: #00aaff;
}

.msg-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-bottom: 12px;
}

.hide {
  display: none;
}