Use native zensical.toml config and enable Zensical features

docs/stylesheets/django.css

@@ -88,7 +88,11 @@
   background-color: var(--django-green-accent);
 }
 
-/* Accent bar under the active nav item */
-.md-nav__link--active {
+/* Active nav item — dark green in light mode, light accent green in dark mode
+   (the dark green is unreadable on the slate background). */
+[data-md-color-scheme="default"] .md-nav__link--active {
   color: var(--django-green) !important;
 }
+[data-md-color-scheme="slate"] .md-nav__link--active {
+  color: var(--django-green-accent) !important;
+}

zensical.toml

@@ -0,0 +1,95 @@
+[project]
+site_name = "DjangoCon US Docs"
+site_url = "https://docs.djangocon.us/"
+site_description = "DjangoCon US: organizer docs, tasks, and checklists"
+
+repo_url = "https://github.com/djangocon/docs.djangocon.us"
+repo_name = "djangocon/docs.djangocon.us"
+
+extra_css = ["stylesheets/django.css"]
+
+nav = [
+  "index.md",
+  { "Conference Chair" = ["conference_chair/about.md", "conference_chair/checklist.md", "conference_chair/history.md"] },
+  { "Drafts" = ["drafts/coc_about.md", "drafts/coc_complaint.md", "drafts/coc_violation.md", "drafts/drafts.md", "drafts/email-tutorials-faqs.md", "drafts/finaid_accepted.md", "drafts/finaid_rejected.md", "drafts/finaid_submitted.md", "drafts/recruiting.md", "drafts/talk_accepted.md", "drafts/talk_rejected.md", "drafts/talk_submitted.md", "drafts/volunteer-info-email.md", "drafts/volunteer.md", "drafts/why-to-attend.md"] },
+  { "A/V" = ["av/about.md", "av/checklist.md", "av/history.md"] },
+  { "Community" = ["community/about.md", "community/checklist.md", "community/visas.md", "community/orientation.md", "community/inclusion_checklist.md", "community/childcare.md", "community/inclusion.md", "community/history.md"] },
+  { "Conduct" = ["conduct/about.md", "conduct/checklist.md", "conduct/history.md"] },
+  { "Contribution Sprints" = ["contribution_sprints/about.md", "contribution_sprints/checklist.md", "contribution_sprints/history.md", "contribution_sprints/playbooks.md", "contribution_sprints/communication_examples.md"] },
+  { "Health and Safety" = ["health_and_safety/about.md", "health_and_safety/checklist.md", "health_and_safety/history.md"] },
+  { "Lightning Talks" = ["lightning_talks/about.md", "lightning_talks/checklist.md", "lightning_talks/history.md"] },
+  { "Logistics" = ["logistics/budget.md", "logistics/design_website_checklist.md", "logistics/logistics.md", "logistics/organizers.md", "logistics/photographer.md", "logistics/post_conference.md", "logistics/timeline.md"] },
+  { "Marketing" = ["marketing/about.md", "marketing/checklist.md", "marketing/history.md", "marketing/communications.md", "marketing/mailing_lists.md", "marketing/remarks.md"] },
+  { "Online Committee" = ["online_committee/about.md", "online_committee/checklist.md", "online_committee/history.md"] },
+  { "Opportunity Grants" = ["opportunity_grants/about.md", "opportunity_grants/checklist.md", "opportunity_grants/history.md"] },
+  { "Program and Schedule" = ["program_and_schedule/about.md", "program_and_schedule/checklist.md", "program_and_schedule/history.md", "program_and_schedule/example_schedule.md", "program_and_schedule/program.md", "program_and_schedule/timeline.md", "program_and_schedule/schedule.md"] },
+  { "Social Events" = ["social_events/about.md", "social_events/checklist.md", "social_events/history.md", "social_events/special_events.md"] },
+  { "Sponsors" = ["sponsors/about.md", "sponsors/checklist.md", "sponsors/history.md"] },
+  { "Swag" = ["swag/about.md", "swag/checklist.md", "swag/history.md"] },
+  { "Tickets" = ["tickets/about.md", "tickets/checklist.md", "tickets/history.md"] },
+  { "Venue" = ["venue/about.md", "venue/checklist.md", "venue/bathroom-baskets.md", "venue/experience.md", "venue/history.md"] },
+  { "Volunteer Team" = ["volunteer_team/about.md", "volunteer_team/checklist.md", "volunteer_team/handbook.md", "volunteer_team/session_emcee.md", "volunteer_team/session_manager.md", "volunteer_team/registration.md", "volunteer_team/email_templates.md", "volunteer_team/blog_template.md", "volunteer_team/automation.md", "volunteer_team/history.md"] },
+  { "Website" = ["website/about.md", "website/checklist.md", "website/history.md"] },
+]
+
+[project.theme]
+language = "en"
+features = [
+  "content.code.annotate",
+  "content.code.copy",
+  "content.code.select",
+  "content.footnote.tooltips",
+  "content.tabs.link",
+  "content.tooltips",
+  "navigation.footer",
+  "navigation.indexes",
+  "navigation.instant",
+  "navigation.instant.prefetch",
+  "navigation.sections",
+  "navigation.top",
+  "navigation.tracking",
+  "search.highlight",
+  "search.suggest",
+  "toc.follow",
+]
+
+# Django-branded palette; custom primary/accent are driven by docs/stylesheets/django.css
+[[project.theme.palette]]
+media = "(prefers-color-scheme: light)"
+scheme = "default"
+primary = "custom"
+accent = "custom"
+toggle.icon = "lucide/sun"
+toggle.name = "Switch to dark mode"
+
+[[project.theme.palette]]
+media = "(prefers-color-scheme: dark)"
+scheme = "slate"
+primary = "custom"
+accent = "custom"
+toggle.icon = "lucide/moon"
+toggle.name = "Switch to light mode"
+
+[project.markdown_extensions]
+abbr = {}
+admonition = {}
+attr_list = {}
+def_list = {}
+footnotes = {}
+md_in_html = {}
+tables = {}
+toc = { permalink = true }
+pymdownx.betterem = {}
+pymdownx.caret = {}
+pymdownx.details = {}
+pymdownx.emoji = { emoji_generator = "zensical.extensions.emoji.to_svg", emoji_index = "zensical.extensions.emoji.twemoji" }
+pymdownx.highlight = { anchor_linenums = true, line_spans = "__span", pygments_lang_class = true }
+pymdownx.inlinehilite = {}
+pymdownx.keys = {}
+pymdownx.magiclink = {}
+pymdownx.mark = {}
+pymdownx.smartsymbols = {}
+pymdownx.superfences = { custom_fences = [{ name = "mermaid", class = "mermaid", format = "pymdownx.superfences.fence_code_format" }] }
+pymdownx.tabbed = { alternate_style = true, combine_header_slug = true }
+pymdownx.tasklist = { custom_checkbox = true }
+pymdownx.tilde = {}