#main-container {
  margin-top: 20px !important;
}

/* Container */
.game-container {
  position: relative;
  background: #323e4b;
  padding: 15px;
  border-radius: 12px;
  box-shadow: 0px 0px 15px rgba(0,0,0,0.5);
  text-align: center;
  max-width: 100%;
  margin: 0 auto;
}

/* Canvas */
#viewport {
  background-color: transparent !important;
  display: block;
  margin: 0 auto;
  border: 4px solid #000;
  border-radius: 8px;
  width: 100%;
  height: auto;
  max-width: 628px; /* Desktop size fix */
}

/* Score Style */
.score-box {
  font-size: 22px;
  font-weight: bold;
  color: #FFF;
  margin: 10px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  flex-wrap: wrap;
}

#score {
  margin-left: 5px;
}

/* Bubbles */
.bubble {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #6cf, #39f);
}

.bubble.pop {
  animation: pop 0.4s forwards;
}

@keyframes pop {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* Popup Styles */
.bubble-game-popup {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 99999999;
}

.bubble-popup-content {
  background: #fff;
  padding: 40px 20px;
  width: 90%;
  max-width: 450px;
  border-radius: 16px;
  text-align: center;
  color: #000;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
}

.bubble-popup-content h1 {
  margin: 0 auto 15px;
  color: #e74c3c;
  text-align: center;
  font-size: 34px;
}

.bubble-popup-content p {
  font-size: 18px;
  margin-bottom: 20px;
}

.bubble-popup-content button {
  padding: 10px 35px;
  border: none;
  font-size: 18px;
  cursor: pointer;
  transition: 0.3s;
}
#restartBtn:focus-visible{
  outline: none !important;
}

/* ---------------- RESPONSIVE BREAKPOINTS ---------------- */

/* 1299px */
@media (max-width:1299px) {
  .game-container { padding: 10px; }
  .score-box { font-size: 20px; }
}

/* 992px */
@media (max-width: 992px) {
  .game-container { padding: 8px; }
  .score-box { font-size: 19px; }
}

/* 768px */
@media (max-width: 768px) {
  .game-container { padding: 5px; }
  #viewport { max-width: 100%; }
  .score-box { font-size: 18px; justify-content: center; }
}

/* 600px */
@media (max-width: 600px) {
  .game-container { padding: 5px; }
  .bubble-popup-content { width: 95%; padding: 30px 15px; }
  .bubble-popup-content h1 { font-size: 28px; }
  .bubble-popup-content p { font-size: 16px; }
  .bubble-popup-content button { font-size: 16px; padding: 8px 25px; }
}

/* 480px */
@media (max-width: 480px) {
  .game-container { padding: 2px; }
  #viewport { width: 100%; height: auto; }
  .score-box { font-size: 16px; }
}

/* 350px */
@media (max-width: 350px) {
  .score-box { font-size: 15px; justify-content: center; }
  .bubble-popup-content h1 { font-size: 24px; }
  .bubble-popup-content p { font-size: 14px; }
  .bubble-popup-content button { font-size: 14px; padding: 6px 20px; }
}

/* 320px */
@media (max-width: 320px) {
  .score-box { font-size: 14px; }
  .bubble-popup-content { padding: 20px 10px; }
  .bubble-popup-content h1 { font-size: 22px; }
}