The smooth scroll handler was intercepting clicks on the "Servicios"
dropdown toggle link (href="#servicios"), which on the landing page
would find the #servicios section and call closeMenu(), immediately
closing the menu before the user could click any service link.
Fix: skip dropdown toggle links in smooth scroll handler, make
dropdown toggle work via click on all devices (not just CSS :hover).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>