* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #12071f, #1c1033, #09060f);
  color: white;
}

.game-wrapper {
  width: 100%;
  padding: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.game-card {
  width: 100%;
  max-width: 520px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  padding: 28px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(10px);
}

h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  letter-spacing: 1px;
}

.subtitle {
  margin: 0 0 20px;
  color: #d3c6f5;
  font-size: 0.95rem;
}

.hud {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.score-box,
.status-box {
  flex: 1;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  padding: 12px;
  text-align: center;
}

.score-box span,
.status-box span {
  display: block;
  font-size: 0.8rem;
  color: #cfc3ec;
  margin-bottom: 4px;
}

.score-box strong,
.status-box strong {
  font-size: 1.2rem;
  color: #ffffff;
}

canvas {
  display: block;
  margin: 0 auto 14px;
  background: #0a0a0f;
  border: 3px solid #a46bff;
  border-radius: 18px;
  box-shadow: 0 0 25px rgba(164, 107, 255, 0.25);
}

.controls-text {
  margin: 0 0 18px;
  color: #d3c6f5;
  font-size: 0.95rem;
}

.button-group {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

button {
  border: none;
  outline: none;
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
  background: #a46bff;
  color: white;
}

button:hover {
  transform: translateY(-2px);
  opacity: 0.92;
}

button:active {
  transform: translateY(0);
}

.quit-btn {
  background: #ff5c8a;
}

@media (max-width: 560px) {
  .game-card {
    padding: 20px;
  }

  canvas {
    width: 100%;
    height: auto;
  }

  .hud {
    flex-direction: column;
  }
}
#restartBtn {
  display: none;
}