/* Approved geometry: square corners, flat surfaces, strong 2px control outlines. */
:root{--radius-control:0;--border-control:2px;--border-structural:2px}
header .donate,.invitation,.contact .action{border-width:var(--border-control);border-radius:var(--radius-control);box-shadow:none}
header,.work article,.speaking{border-top-width:var(--border-structural)}
/* Secondary separators remain lighter; no new containers are introduced. */