body {
  padding-bottom: 4rem; /* ajuste conforme a altura real do .ai-chat-footer */
}

/* Chat IA fixo no rodapé */
.ai-chat-footer {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 0.75rem;
  background: #ffffff;
  border-top: 1px solid #e1e1e1;
  box-shadow: 0 -2px 6px rgba(0,0,0,0.1);
  z-index: 1000;
}

/* centraliza e limita largura do form */
.ai-chat-form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  align-items: center;
}

/* ícone IA à esquerda */
.ai-chat-form .ai-icon {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: #6c757d;
  margin-right: 0.5rem;
}

/* campo de texto */
.ai-chat-form .form-control {
  border-left: none;
  flex: 1;
}

/* botões de voz e enviar */
.ai-chat-form .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  margin-left: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-chat-form .btn i {
  font-size: 1.125rem;
}

/* foco no input */
.ai-chat-form .form-control:focus {
  box-shadow: none;
  border-color: #4a90e2;
}

/* hover no enviar */
.ai-chat-form .btn-primary:hover {
  background-color: #3367d6;
  border-color: #3367d6;
}
/* 1) Card “Como usar” */
.assistant-info .card {
  background: #fff;
}
.assistant-info .bi-robot {
  font-size: 2.5rem;
}
.assistant-info ul li i {
  font-size: 1rem;
  line-height: 1.4;
}

/* 2) Callout “Dica Rápida” */
.assistant-callout .bg-light {
  background-color: #f8f9fa !important;
}

/* 3) FAQ Accordion */
.assistant-faq .accordion-button {
  font-weight: 500;
}
.assistant-faq .accordion-body {
  color: #495057;
}

#adOverlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.9);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000;
}
#adOverlay.d-none {
  display: none !important;
}

.ad-container {
  max-width: 320px;
  width: 100%;
  margin: 0 auto;
}