:root { --spine-width: 380px; }
body { background: #020617; }
.stage { padding: 12px 0 40px; min-height: calc(100vh - 56px); }
.root .orb { --s: 68px; }
.section .orb { --s: 48px; }
.topic .orb { --s: 36px; font-size: 14px; }
.cap { --cap-size: 9px; --cap-width: 68px; gap: 4px; }
.node { gap: 4px; }
/* tighter vertical positions via inline overrides in HTML */