body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #fff3f3;
  margin: 0;
  padding: 0;
}

/* ===== TIÊU ĐỀ ===== */
h1 {
  color: #f70404;
  margin-top: 20px;
  text-shadow: #080808 1px 1px 2px;
}

h4 {
  color: #b6f704;
  font-size: 18px;
  text-shadow: #000 1px 1px 2px;
}

/* ===== GAME ===== */
.game {
  text-align: center;
  margin-top: 40px;
  padding: 20px;
}

/* ===== BATTLE ===== */
.battle {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 50px;
  font-size: 80px;
  margin-bottom: 20px;
}

.vs {
  font-size: 35px;
  font-weight: bold;
}

.ai-hand,
.player-hand {
  text-align: center;
}

.label {
  font-size: 16px;
  margin-top: 5px;
}

/* ===== SCORE ===== */
.score {
  font-size: 20px;
  color: #f70404;
  margin-top: 20px;
  font-style: italic;
  text-shadow: #000 1px 1px 2px;
}

/* ===== BUTTON ===== */
.buttons button {
  padding: 14px 22px;
  margin: 10px;
  font-size: 20px;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  background: linear-gradient(45deg, #ff4d4d, #ff1a75);
  color: white;
  transition: 0.3s;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.buttons button:hover {
  transform: scale(1.1);
}

/* ===== RESULT ===== */
.result {
  margin-top: 20px;
  font-size: 22px;
  font-weight: bold;
  min-height: 50px;
}

/* ===== FACEBOOK ===== */
.anhfb {
  margin-top: 30px;
}

.fb {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 16px;
  text-decoration: none;
  color: #4267b2;
}

/* icon nhỏ bằng đúng chữ */
.fb img {
  width: 1em;
  height: 1em;
  vertical-align: middle;
}

/* ===== ẢNH QR ===== */
.maqr {
  border-radius: 10px;
  margin-top: 10px;
}
.score {
  display: none;
}