.demo h1 { font-size: clamp(30px, 5vw, 44px); letter-spacing: -0.03em; margin: 24px 0 8px; }
.demo .sub { color: var(--muted); max-width: 62ch; margin: 0 0 24px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.panel h2 { font-size: 18px; margin: 0 0 6px; }
.panel p { margin: 0 0 14px; color: var(--muted); font-size: 15px; }

.setup label { display: block; font-weight: 600; margin-bottom: 10px; }
.count-row { display: flex; gap: 12px; flex-wrap: wrap; }
select {
  font: inherit;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.status { margin: 12px 0 0; min-height: 1.4em; }
.status.error { color: var(--warn); }

.stage {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: start;
}
@media (max-width: 860px) {
  .stage { grid-template-columns: minmax(0, 1fr); }
}

.monitors {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.monitor {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.monitor:hover { border-color: var(--muted); }
.monitor.gazed { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.monitor.calibrating { border-color: var(--warn); border-style: dashed; }
.monitor .name { font-weight: 600; }
.monitor .bar { height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; }
.monitor .bar span { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.1s; }
.monitor .pct { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.monitor .cursor {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border-radius: 50%;
  background: var(--dot);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--dot) 25%, transparent);
  display: none;
}
.monitor.has-cursor .cursor { display: block; }
.monitor.done::after {
  content: "calibrated";
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 12px;
  color: var(--good);
}

.side { display: grid; gap: 14px; }

.cam {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  aspect-ratio: 4 / 3;
}
.cam video { width: 100%; height: 100%; object-fit: cover; transform: scaleX(-1); display: block; }
.face {
  position: absolute;
  left: 10px;
  bottom: 10px;
  font-size: 12px;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
}
.face.ok { background: rgba(31, 138, 76, 0.85); }

.engine { font-weight: 600; color: var(--text) !important; }
.hint { font-size: 14px !important; }

kbd {
  font-family: var(--mono);
  font-size: 12px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 6px;
  background: var(--surface-2);
}

.log {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  max-height: 160px;
  overflow-y: auto;
}
.log li { padding: 3px 0; border-bottom: 1px solid var(--border); }
.log li:first-child { color: var(--text); }