Can't go wrong with TypeScript + React. You can use ViteJS to bootstrap your project and build an optimized version for production. VSCode for a good TypeScript developer experience. Recommend to check out React Router and React Query if you go with React.
I personally still use vanilla CSS instead of the many other alternatives. I keep 1 CSS file per page/component (e.g. directory "Home" > index.tsx + index.css) and add a class at the root of my page/component (e.g. <div className="home">) and then prefix every rule in this directory with this class (e.g. .home .something-inside-this-page). It keeps everything easily manageable and avoids CSS conflicts. Check out grid (vertical and horizontal layout) and flex (vertical or horizontal layout) if you are not familiar with these "modern" CSS features, they make everything simpler.
I personally still use vanilla CSS instead of the many other alternatives. I keep 1 CSS file per page/component (e.g. directory "Home" > index.tsx + index.css) and add a class at the root of my page/component (e.g. <div className="home">) and then prefix every rule in this directory with this class (e.g. .home .something-inside-this-page). It keeps everything easily manageable and avoids CSS conflicts. Check out grid (vertical and horizontal layout) and flex (vertical or horizontal layout) if you are not familiar with these "modern" CSS features, they make everything simpler.