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

html, body {
  height: 100%;
  font-family: 'Courier New', monospace;
  background: black;
  overflow: hidden;
}

.container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #ff0000;
  font-size: 2rem;
  text-shadow: 0 0 10px red, 0 0 20px black;
  white-space: nowrap;
  user-select: none;
}

.background {
  position: fixed;
  top: 0;
  left: 0;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(circle, rgba(0, 0, 0, 0.8) 30%, transparent 70%),
    radial-gradient(circle, rgba(255, 0, 0, 0.05) 10%, transparent 80%);
  background-size: 50% 50%;
  animation: smokeMove 60s linear infinite;
  z-index: -1;
  filter: blur(50px);
}

@keyframes smokeMove {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-25%, -25%) scale(1.1);
  }
  100% {
    transform: translate(0, 0) scale(1);
  }
}

#heart-container {
  position: fixed;
  bottom: 100px;
  left: 40px;
  pointer-events: none;
  z-index: 1100;
}

.heart {
  width: 40px;
  height: 40px;
  background: url('https://i.imgur.com/OY3S48V.png') no-repeat center center;
  background-size: contain;
  position: absolute;
  animation: heart-float 1s ease forwards;
  opacity: 0.9;
}

/* Animação: sobe e desaparece */
@keyframes heart-float {
  0% {
    transform: translateY(0) scale(1);
    opacity: 0.9;
  }
  100% {
    transform: translateY(-80px) scale(1.3);
    opacity: 0;
  }
}