html {
    scroll-behavior: smooth;
  }

  .nav-link {
    font-size: 1.05rem;
    position: relative;
    padding-bottom: 4px;
  }
  .nav-link::after {
    content: '';
    position: absolute;
    left: 0; bottom: 0;
    width: 0; height: 2px;
    background: #b8018a;
    transition: width 0.3s;
  }
  .nav-link:hover::after {
    width: 100%;
  }

  /* Like animación corazón */
  #like-icon {
    animation: heartbeat 2s infinite;
    transform-origin: center;
  }
  @keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    10%, 30% { transform: scale(1.2); }
    20%, 40% { transform: scale(0.95); }
  }