ActionRail

render: () => (
  <Measure width="content">
    <Stack gap="relaxed">
      <Stack gap="compact">
        <strong>Action rail</strong>
        <span>
          Leading actions stay at the start; trailing actions and the submit action stay at the
          end. Flexible actions wrap so the submit action remains visible.
        </span>
      </Stack>
      <ActionRail
        aria-label="Composer actions"
        role="group"
        leading={
          <Button variant="quiet" size="small">
            Add
          </Button>
        }
        trailing={[
          <Button variant="quiet" size="small">
            Auto review
          </Button>,
          <IconButton label="Voice input">
            <Icon name="message-square" />
          </IconButton>,
        ]}
        submit={
          <Button size="small" aria-label="Send message">
            <Icon name="arrow-up" />
          </Button>
        }
      />
      <ActionRail
        aria-label="Long action rail"
        role="group"
        leading={
          <IconButton label="Add an attachment">
            <Icon name="plus" />
          </IconButton>
        }
        trailing={[
          <Button variant="quiet" size="small">
            A long provider or model selection to inspect
          </Button>,
          <IconButton label="Voice input">
            <Icon name="message-square" />
          </IconButton>,
        ]}
        submit={
          <Button size="small" aria-label="Send message">
            <Icon name="arrow-up" />
          </Button>
        }
      />

      <Stack gap="compact">
        <strong>Meta row</strong>
        <span>
          Facts keep separators and wrap instead of clipping. Progress is one more fact and does
          not add a leading separator when the row has no items.
        </span>
      </Stack>
      <MetaRow
        aria-label="Run facts"
        items={[
          { icon: <Icon name="refresh-cw" />, label: "7 turns 162 steps" },
          { label: "219 tok/s" },
          { icon: <Icon name="list-checks" />, label: "Cache hit 99.5%" },
        ]}
        progress={45}
        progressLabel="Cache progress"
      />
      <MetaRow
        aria-label="Centered run facts"
        align="center"
        progressTone="accent"
        items={[
          { icon: <Icon name="folder" />, label: "46.9M tokens" },
          { label: "Session budget" },
        ]}
        progress={72}
        progressLabel="Session budget"
      />
      <MetaRow
        aria-label="Progress only"
        items={[]}
        progress={72}
        progressLabel="Session budget"
      />
    </Stack>
  </Measure>
)