.chat-widget {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 1000;
  }
  .chat-toggle {
    width: 4.5rem; height: 4.5rem;
    border-radius: 50%;
    background: #000;
    color: #fff;
    border: none;
    cursor: pointer;
  }
  .chat-toggle__icon {
    /* aquí tu icono (puede ser una <svg> o font‑icon) */
    font-size: 30px;
  }
  .chat-panel {
    display: none;
    width: 280px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    overflow: hidden;
    margin-top: 0.5rem;
  }
  .chat-panel.open {
    display: block;
  }
  .chat-panel__header {
    background: #000;
    color: #fff;
    padding: 0.5rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .chat-panel__close {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
  }
  .chat-form {
    padding: 1rem;
  }
  .chat-form input,
  .chat-form textarea {
    width: 100%;
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.95rem;
  }
  .chat-form__submit {
    width: 100%;
    padding: 0.6rem;
    background: #000;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }