/* Deliberately plain — this is a test harness, not the product. */

body {
  font-family: system-ui, -apple-system, sans-serif;
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1rem;
  color: #1a1a1a;
  line-height: 1.5;
}

header p {
  color: #555;
}

#thread {
  margin: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.turn {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border: 1px solid #ddd;
  white-space: pre-wrap;
}

.turn-user {
  background: #f5f5f5;
}

.turn-assistant {
  background: #fff;
  border-color: #ccd;
}

.meta {
  font-size: 0.75rem;
  color: #888;
  margin-top: -0.5rem;
}

label {
  display: block;
  font-size: 0.85rem;
  color: #555;
  margin-top: 0.75rem;
}

textarea,
select {
  width: 100%;
  font: inherit;
  padding: 0.5rem;
  box-sizing: border-box;
}

.actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

button {
  font: inherit;
  padding: 0.5rem 1rem;
  cursor: pointer;
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

#error {
  color: #b00020;
  font-weight: 600;
}

#status {
  color: #555;
}

footer {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: #888;
  border-top: 1px solid #eee;
  padding-top: 1rem;
}