server {
    listen 80;
    server_name _;

    root /usr/share/nginx/html;
    charset utf-8;

    # Quartz-compatible URLs: /A/B -> A/B.html, /Folder/ -> Folder/index.html
    location / {
        try_files $uri $uri.html $uri/index.html =404;
    }

    # The notebooks listing builds to notebooks.html *and* has a sibling
    # notebooks/ directory of detail pages. try_files above resolves
    # /notebooks and /notebooks/<slug>, but not the trailing-slash form —
    # a bare directory has no index.html. Map it explicitly so every folder
    # URL on the site keeps working with or without the slash.
    location = /notebooks/ {
        try_files /notebooks.html =404;
    }

    location /assets/ {
        expires 7d;
        add_header Cache-Control "public";
    }

    location /_astro/ {
        # content-hashed filenames — safe to cache hard
        expires 365d;
        add_header Cache-Control "public, immutable";
    }
}