.helper-intro {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 28px;
}

.chat-box {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 24px;
  display: none;
}
.chat-box.has-messages {
  display: block;
}

.chat-message {
  margin-bottom: 18px;
}
.chat-message:last-child {
  margin-bottom: 0;
}

.chat-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.chat-bubble {
  background: var(--sand);
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 15px;
  white-space: pre-wrap;
  color: var(--ink);
}

.chat-message.user .chat-bubble {
  background: var(--sand-light);
}

.chat-error {
  margin-top: 4px;
  padding: 12px 16px;
  background: rgba(184, 76, 76, 0.1);
  border: 1px solid rgba(184, 76, 76, 0.3);
  border-radius: 10px;
  color: var(--tag);
  font-size: 14px;
}

.helper-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.helper-form textarea {
  width: 100%;
  min-height: 110px;
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  font-family: inherit;
  font-size: 15px;
  resize: vertical;
}

.helper-form textarea:focus {
  outline: none;
  border-color: var(--sage);
}

.helper-back {
  display: inline-block;
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}
.helper-back:hover {
  color: var(--ink);
}

@media (prefers-color-scheme: dark) {
  .chat-box {
    background: #151515;
    border-color: rgba(255, 255, 255, 0.12);
  }
  .chat-bubble {
    background: #1e1e1e;
  }
  .chat-message.user .chat-bubble {
    background: #232323;
  }
  .helper-form textarea {
    background: #151515;
    border-color: rgba(255, 255, 255, 0.12);
    color: #f5f5f5;
  }
}