body {
    margin: 0;
    padding: 0;
    height: 100vh;
    background: url('multimedia/img2.jpeg') center/cover no-repeat;
    font-family: 'Arial', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    overflow: hidden;
    text-align: center;
  }
  
  .container {
    z-index: 1;
    padding: 20px;
  }
  
  .greetings {
    font-size: 2.5rem;
    font-weight: bold;
    color: white;
    text-shadow: 0 0 10px #14219c, 0 0 20px #a50044;
    margin-bottom: 20px;
  }
  
  .greetings span {
    display: inline-block;
    animation: glow 2.5s infinite ease-in-out;
  }
  
  @keyframes glow {
    0%, 100% {
      color: #faea0c;
      text-shadow: 0 0 10px #ffd700, 0 0 30px #a50044, 0 0 80px #004d98;
    }
    50% {
      color: white;
      text-shadow: none;
    }
  }
  
  .typewriter p {
    color: #ffd700;
    font-size: 1.3rem;
    text-shadow:
        0 0 5px #a50044,
        0 0 10px #004d98,
        1px 1px 3px black;
    
    
  }
  
  @keyframes typing {
    from { width: 0; }
    to { width: 120ch; }
  }
  
  @keyframes blink {
    50% { border-color: transparent; }
  }
  
  /* Pastel */
  .cake {
    position: relative;
    margin: 0 auto;
    width: 150px;
    height: 200px;
  }
  
  .plate {
    width: 100%;
    height: 20px;
    background: #444;
    border-radius: 50%;
    position: absolute;
    bottom: 0;
  }
  
  .layer {
    position: absolute;
    width: 100%;
    height: 40px;
    border-radius: 10px;
  }
  
  .layer-bottom {
    bottom: 20px;
    background: #a50044;
  }
  
  .layer-middle {
    bottom: 60px;
    background: #004d98;
  }
  
  .layer-top {
    bottom: 100px;
    background: #ffd700;
  }
  
  .candle {
    position: absolute;
    top: 20px;
    left: 50%;
    width: 10px;
    height: 40px;
    background: white;
    transform: translateX(-50%);
  }
  
  .flame {
    width: 10px;
    height: 10px;
    background: orange;
    border-radius: 50%;
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 20px orange;
    animation: flicker 0.3s infinite alternate;
  }
  
  @keyframes flicker {
    from { transform: translateX(-50%) scale(1); }
    to { transform: translateX(-50%) scale(1.2); }
  }
  
  /* Globos */
  .balloons {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
  }
  
  .balloon {
    position: absolute;
    bottom: -100px;
    width: 50px;
    height: 70px;
    border-radius: 50% 50% 45% 45%;
    opacity: 0.9;
    animation: floatBalloon 12s linear infinite;
  }
  
  .balloon::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    width: 2px;
    height: 25px;
    background: #555;
    transform: translateX(-50%);
  }
  
  @keyframes floatBalloon {
    0% {
      transform: translateY(0) rotate(0deg);
      opacity: 0;
    }
    10% {
      opacity: 1;
    }
    100% {
      transform: translateY(-120vh) rotate(10deg);
      opacity: 0;
    }
  }
  .button {
    display: inline-block;
    font-size: 1.4rem;
    font-weight: bold;
    color: #ffd700; /* dorado */
    background: linear-gradient(90deg, #a50044 0%, #004d98 100%);
    padding: 15px 35px;
    border: 3px solid #ffd700;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.4);
    transition: all 0.4s ease-in-out;
    letter-spacing: 1px;
}

.button:hover {
    color: #ffffff;
    background: linear-gradient(90deg, #004d98 0%, #a50044 100%);
    box-shadow: 0 0 25px rgba(255, 215, 0, 0.7);
    transform: scale(1.1);
    border-color: #ffffff;
}