Every title, label, or subject gets its own full-width line. Nothing shares horizontal space with the title. Date, spend, and meta go on the line below — never beside the title.

When any new section or page is added, always update frontend/index.html with a new button and nav link. Automatic — no prompt needed.

All test pages go in frontend/sandbox/. Every new test page added to sandbox/index.html automatically. Every element gets a code for easy reference.

Background #000000 · Surface #0a1520 · Card #0d1a27 · Border #1a2a3a · Accent #2e6a9e · Accent-hi #4a8bbf · Dim #7a8fa8 · Text #ddeaff · Bright #ffffff · Yellow #f5e642 · Green #4abf7a. Font: Inter (body) + JetBrains Mono (labels).

Body text is always #ddeaff or brighter. Dim (#7a8fa8) is for labels, meta, placeholders only — never for readable content.

Links within body text must be a clearly different color from surrounding text. Use C1 (#5aabdf) with text-underline-offset: 3px. Never just underlined with same color.

Buttons slightly larger than surrounding body text — not chunky. B2 (15px) is standard. Never below 13px for a button.

Full write access to all paths under public_html. Token in NordPass + Builder/Master Project instructions. Use for all HTML deployments — no FTP needed for HTML.

Fix open directory browsing on /sessions/ /transfers/ /systems/ /core/ and CORS wildcard on save.php/load.php first. Password-protect front-end only after security blockers are resolved pre-v1.6.

frontend/10-travel/ is travel root. Each trip gets its own ALL CAPS subfolder (ES2026/, JT2026/). Splash at 10-travel/index.html.