body {
  margin: 0;
  padding: 0;
  background: linear-gradient(to right, #ffd6e0, #ffeaea);
  font-family: 'Comic Sans MS', cursive, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
  font-size: 16px;
  box-sizing: border-box;
}

.card {
  width: 100%;
  max-width: 500px;
  margin: 20px;
  padding: 20px;
  background-color: white;
  border-radius: 20px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
  text-align: center;
  position: relative;
  z-index: 1;
}

h1 {
  color: #ff4081;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 20px auto;
}

button {
  background-color: #ff80ab;
  border: none;
  color: white;
  padding: 10px 20px;
  border-radius: 15px;
  cursor: pointer;
  font-size: 1em;
  transition: background 0.3s;
}

button:hover {
  background-color: #ff4081;
}

.oculto {
  display: none;
  margin-top: 20px;
  font-size: 1.2em;
  color: #d81b60;
}

/* 💓 Coração voando */
.fundo-cora {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.coracao {
  width: 20px;
  height: 20px;
  background-color: red;
  position: absolute;
  left: 50%;
  bottom: -30px;
  transform: rotate(-45deg);
  animation: voar 10s infinite linear;
}

.coracao::before,
.coracao::after {
  content: "";
  width: 20px;
  height: 20px;
  background-color: red;
  border-radius: 50%;
  position: absolute;
}

.coracao::before {
  top: -10px;
  left: 0;
}

.coracao::after {
  left: 10px;
  top: 0;
}

@keyframes voar {
  0% {
    transform: translateX(0) translateY(0) rotate(-45deg);
    opacity: 1;
  }
  100% {
    transform: translateX(-200px) translateY(-100vh) rotate(-45deg);
    opacity: 0;
  }
}

/* 💌 Carta animada */
.carta {
  width: 100%;
  max-width: 300px;
  height: 120px;
  margin: 30px auto;
  perspective: 1000px;
  cursor: pointer;
  position: relative;
  transform-style: preserve-3d;
}

.carta .frente,
.carta .verso {
  width: 100%;
  height: 100%;
  border-radius: 10px;
  backface-visibility: hidden;
  transition: transform 0.6s;
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1em;
  padding: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.carta .frente {
  background: #ffe0f0;
}

.carta .verso {
  background: #fff8f8;
  transform: rotateY(180deg);
}

.carta.aberta .frente {
  transform: rotateY(180deg);
}

.carta.aberta .verso {
  transform: rotateY(0deg);
}

/* 🎵 Spotify */
.spotify {
  margin-top: 30px;
  width: 100%;
  max-width: 400px;
}