body {
  margin: 0;
  background: linear-gradient(135deg, #1e1e2f, #2e2e4f);
  color: white;
  font-family: 'Poppins', sans-serif;
  text-align: center;
  overflow: hidden;
}

h1 {
  margin-top: 10px;
  font-size: 32px;
  color: #ffce00;
  letter-spacing: 1px;
}

#gameContainer {
  position: relative;
  margin: 30px auto;
  width: 400px;
  height: 500px;
  background: rgba(255, 255, 255, 0.1);
  border: 3px solid #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

#player {
  position: absolute;
  /* sit slightly above the ground line */
  bottom: 18px;
  left: 180px;
  width: 40px;
  height: 40px;
  background: #00e6ff;
  border-radius: 5px;
  /* remove transition so player moves immediately (no lag) */
  transition: none;
  z-index: 20; /* stay above ground and blocks */
}

/* visible ground line at the bottom of the game area
   Raised a bit so the container border and rounding don't cover it. */
#ground {
  position: absolute;
  left: 8px; /* inset to avoid rounded corners clipping */
  right: 8px;
  bottom: 3px; /* lift above the inner edge of the container border */
  height: 6px;
  background: rgba(255,255,255,0.36);
  box-shadow: 0 -1px 6px rgba(0,0,0,0.25) inset;
  z-index: 5; /* put ground above falling blocks */
  pointer-events: none; /* allow clicks to pass through */
  border-radius: 4px;
}

.block {
  position: absolute;
  top: 0;
  width: 50px;
  height: 50px;
  background: #ff4d4d;
  border-radius: 6px;
  z-index: 2; /* behind ground and player */
}

#score {
  font-size: 20px;
  margin-top: -10px;
}

/* timer shown inside the game container at top-right */
/* timer fixed to the page upper-right */
#timer {
  position: fixed;
  top: 12px;
  right: 16px;
  font-size: 16px;
  color: #bfefff;
  background: rgba(0,0,0,0.18);
  padding: 6px 10px;
  border-radius: 8px;
  z-index: 9999;
  pointer-events: none;
}

#message {
  margin-top: 10px;
  font-size: 22px;
  font-weight: bold;
  color: #ffce00;
}