/* FONDO OSCURECIDO */
.overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(10, 15, 30, 0.6);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.3s ease;
  }
  
  /* FORMULARIO (vidrio líquido) */
  .formContainer {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-radius: 20px;
    box-shadow: inset 0 2px 4px rgba(255,255,255,0.4),
                0 8px 30px rgba(0,0,0,0.4);
    width: 500px;
    max-width: 90%;
    padding: 40px;
    color: #fff;
    position: relative;
    text-align: center;
    animation: aparecer 0.3s ease forwards;
  }
  
  /* TITULOS */
  .formContainer h2 {
    font-size: 1.4em;
    margin-bottom: 10px;
  }
  
  .formContainer .sub {
    font-size: 0.9em;
    color: rgba(255,255,255,0.8);
    margin-bottom: 30px;
  }
  
  /* CAMPOS */
  .inputGroup {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
  }
  
  .inputGroup input {
    flex: 1;
    padding: 10px 15px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.2);
    color: #fff;
    font-size: 0.95em;
    outline: none;
    transition: all 0.2s ease;
  }
  
  .inputGroup input:focus {
    border-color: rgba(25,201,255,0.8);
    background: rgba(255,255,255,0.3);
  }
  
  /* BOTÓN */
  .enviarBtn {
    background: rgba(255,255,255,0.8);
    color: #00023E;
    font-weight: bold;
    padding: 10px 25px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
  }
  
  .enviarBtn:hover {
    background: white;
    transform: scale(1.05);
    box-shadow: 0 8px 15px rgba(0,0,0,0.3);
  }
  
  /* BOTÓN DE CIERRE */
  .closeBtn {
    position: absolute;
    top: 15px; right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: rgba(255,255,255,0.8);
    transition: color 0.2s ease;
  }
  
  .closeBtn:hover {
    color: #fff;
  }
  
  /* ANIMACIÓN DE APARICIÓN */
  @keyframes aparecer {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
  }