:root {
  --bg: #f6f5f2;
  --surface: #ffffff;
  --text: #1d1d1b;
  --muted: #6b6a66;
  --accent: #9a3b1b;
  --accent-text: #ffffff;
  --border: #e2e0da;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161614;
    --surface: #22211e;
    --text: #f0eee9;
    --muted: #a3a19b;
    --accent: #e0774f;
    --accent-text: #161614;
    --border: #36342f;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  padding: 12px 16px calc(16px + env(safe-area-inset-bottom));
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  max-width: 640px;
  margin-inline: auto;
}
header { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
h1 { font-size: 20px; margin: 4px 0; }
.settings { display: flex; gap: 6px; }

select, input, button {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
}
button { cursor: pointer; }
button:disabled { opacity: .5; cursor: default; }
#btn-recognize, #btn-ask { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }

.camera { margin: 12px 0; }
video {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: #000;
  border-radius: 14px;
  display: block;
}
.camera-actions { display: flex; gap: 8px; margin-top: 8px; }
.camera-actions button { flex: 1; padding: 12px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  margin: 12px 0;
}
#candidates { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.artifact-name { font-weight: 600; margin-bottom: 6px; }
.answer { white-space: pre-wrap; min-height: 1.5em; margin-bottom: 10px; }
.answer.loading { color: var(--muted); }

#ask-form { display: flex; gap: 6px; }
#question { flex: 1; min-width: 0; }
.toggle { display: block; margin-top: 8px; color: var(--muted); font-size: 14px; }

footer { display: flex; justify-content: space-between; gap: 8px; color: var(--muted); font-size: 13px; flex-wrap: wrap; }