body {
  font-family: "Segoe UI", sans-serif;
  line-height: 1.5;
  margin: 0;
  color: #1c1c1c;
  background: #f7f5f2;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
}

label, button, textarea, input {
  display: block;
  width: 100%;
  box-sizing: border-box;
}

textarea, input {
  margin-bottom: 1rem;
  padding: 0.5rem;
}

button {
  width: auto;
  padding: 0.5rem 1rem;
  margin-bottom: 1rem;
}

.step {
  margin: 0 0 1.5rem;
  padding: 1rem 1.1rem;
  background: #fff;
  white-space: normal;
}

.action-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.action-row input {
  flex: 1;
  margin: 0;
}

.action-row button {
  margin: 0;
  white-space: nowrap;
}

button.go {
  background: #1f8a3b;
  color: #fff;
  border: 0;
}

button.quiet {
  background: #e4e4e4;
  color: #222;
  border: 0;
}

.form-error {
  color: #c62828;
  margin-top: 0.75rem;
}

.follow-up {
  margin-top: 1.5rem;
}

.transcript {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.bubble {
  max-width: 85%;
  margin: 0;
  padding: 0.75rem 1rem;
  background: #fff;
  border-radius: 1rem;
  white-space: pre-wrap;
}

.bubble.assistant {
  align-self: flex-start;
}

.bubble.visitor {
  align-self: flex-end;
  background: #e7eef6;
}

.bubble.error {
  background: #fdecea;
  color: #c62828;
}

.composer {
  display: flex;
  gap: 0.75rem;
  align-items: flex-end;
  position: sticky;
  bottom: 0;
  background: #f7f5f2;
  padding: 0.75rem 0 0;
}

.composer textarea {
  flex: 1;
  margin: 0;
  min-height: 2.75rem;
  resize: none;
}

.composer button {
  margin: 0;
}

:focus {
  outline: 2px solid #0b57d0;
  outline-offset: 2px;
}