Phantom

Phantom's header is a small logo mark plus a single "Menu" trigger — everything else lives behind the slide-out #menu panel. Below the fold, posts render as alternating tile sizes (style1 through style6, cycling every six items) so the grid never feels like a flat repeating pattern.

Open the menu on a narrow viewport first: that's the fidelity check this demo exists for. Then scroll the tiles and compare their rhythm with html5up.net/phantom.