body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #ffe0ef, #ffccdf, #f8b3ce);
  color: #4a4a4a;
  overflow-x: hidden;
}

/* Partículas suaves */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.particle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  animation: float 10s infinite ease-in-out;
}

@keyframes float {
  0% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
  50% {
    transform: translateY(-80px) scale(1.3);
    opacity: 0.6;
  }
  100% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

.container {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 20px;
  margin-top: 40px;
}

h1 {
  font-size: 50px;
  color: #d63384;
  animation: fadeIn 2s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mensaje {
  font-size: 24px;
  width: 70%;
  margin: 40px auto;
  background: rgba(255, 255, 255, 0.85);
  padding: 30px;
  border-radius: 25px;
  line-height: 1.9;
  box-shadow: 0 10px 30px rgba(255, 80, 150, 0.2);
  animation: fadeInText 2.5s ease-out;
}

@keyframes fadeInText {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.imagenes {
  margin-top: 30px;
  animation: fadeIn 3s ease-out;
}

.imagenes img {
  width: 260px;
  border-radius: 20px;
  margin: 10px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
}

/* Botón romántico */
.btn-secreto {
  margin-top: 35px;
  font-size: 20px;
  padding: 12px 25px;
  background: #d63384;
  color: white;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: 0.3s;
  animation: fadeIn 3.3s ease-out;
}

.btn-secreto:hover {
  background: #bf206f;
  transform: scale(1.05);
}

/* Mensaje secreto */
#secreto {
  display: none;
  margin-top: 25px;
  font-size: 22px;
  width: 60%;
  margin-left: auto;
  margin-right: auto;
  background: rgba(255, 255, 255, 0.93);
  padding: 25px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(255, 120, 160, 0.25);
  line-height: 1.8;
}