body {
  font-family: system-ui, -apple-system, sans-serif;
  background: #f4f5f7;
  margin: 0;
  padding: 24px;
}

.fisica-page-title {
  max-width: 480px;
  margin: 0 auto 16px;
  color: #1f3a5f;
  font-size: 22px;
  text-align: center;
}

.fisica-chat-widget {
  max-width: 480px;
  margin: 0 auto;
  border: 1px solid #d5d8dc;
  border-radius: 8px;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  height: 70vh;
  overflow: hidden;
}

.fisica-chat-header {
  background: #1f3a5f;
  color: #ffffff;
  padding: 12px 16px;
  font-weight: 600;
}

.fisica-chat-temario {
  max-width: 480px;
  margin: 16px auto 0;
  border: 1px solid #d5d8dc;
  border-radius: 8px;
  background: #f8f9fa;
  font-size: 13px;
  color: #3a3f47;
}

.fisica-chat-temario summary {
  padding: 10px 16px;
  cursor: pointer;
  font-weight: 600;
  color: #1f3a5f;
}

.fisica-chat-temario ul {
  margin: 0;
  padding: 0 16px 8px 32px;
}

.fisica-chat-temario li {
  margin-bottom: 2px;
}

.fisica-chat-temario-nota {
  margin: 0;
  padding: 0 16px 12px 16px;
  color: #6b7078;
  font-style: italic;
}

.fisica-page-footer {
  max-width: 480px;
  margin: 16px auto 0;
  text-align: center;
  font-size: 12px;
  color: #8a8f98;
}

.fisica-page-footer a {
  color: #1f3a5f;
}

.fisica-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.fisica-chat-message {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: 10px;
  white-space: pre-wrap;
  line-height: 1.4;
}

.fisica-chat-message--user {
  align-self: flex-end;
  background: #1f3a5f;
  color: #ffffff;
}

.fisica-chat-message--assistant {
  align-self: flex-start;
  background: #eef0f3;
  color: #1a1a1a;
}

.fisica-chat-message--error {
  background: #fbe4e4;
  color: #7a1f1f;
}

.fisica-chat-form {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid #d5d8dc;
}

.fisica-chat-input {
  flex: 1;
  resize: none;
  padding: 8px;
  border: 1px solid #c7cbd1;
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
}

.fisica-chat-submit {
  background: #1f3a5f;
  color: #ffffff;
  border: none;
  border-radius: 6px;
  padding: 0 16px;
  cursor: pointer;
  font-weight: 600;
}

.fisica-chat-submit:disabled {
  opacity: 0.6;
  cursor: default;
}