"""Blank presentation shell.

No authentication, data access, MCP call, persistence, or customer text belongs
in this module. It exists only to prove the minimal Streamlit runtime path.
"""

from __future__ import annotations

from typing import Any


def render_blank_shell(st: Any) -> None:
    """Render the intentionally empty first review screen."""
    st.set_page_config(page_title="Smilegate Demo", layout="wide")
    st.markdown(
        """
        <style>
          [data-testid="stHeader"],
          [data-testid="stToolbar"],
          #MainMenu,
          footer { display: none; }
          [data-testid="stAppViewContainer"],
          .stApp { background: #ffffff; }
          .block-container { padding: 0; max-width: none; }
        </style>
        """,
        unsafe_allow_html=True,
    )