/*
  The closed-curtain "landing" lives entirely inside the #hero section now
  (see hero.css). This file is intentionally kept as a no-op placeholder so
  the <link rel="stylesheet"> in index.html doesn't 404 and so old links to
  the previous standalone #curtain element fail gracefully.

  If we ever want a separate landing overlay again, restore the old
  .curtain / .curtain__panel etc. rules here.
*/