:root{--paper:#F6F7F7;--white:#FFFFFF;--mist:#E8ECEE;--ink:#20282C;--muted:#5C6A71;--line:#CCD3D7;--depth:#111C23;--depth-text:#EEF2F3;--link:#415D6A;--ice:#D5E7EE;--head:Geologica,Arial,sans-serif;--body:Inter,Arial,sans-serif;--heading-variation:"SHRP" 50,"CRSV" 0,"slnt" 0;--radius-button:2px;--radius-panel:4px;--oxide:#7A4037;--oxide-deep:#4B2926;--brass-base:#A07436;--brass-label-on-depth:#C69752;--surface-default:var(--paper);--surface-secondary:var(--mist);--surface-engineering:var(--depth);--surface-rich-accent:var(--oxide);--surface-rich-accent-deep:var(--oxide-deep);--brass-metal:linear-gradient(106deg,#5B3B1E 0%,#916327 16%,#C69752 31%,#ECD09B 39%,#A07436 49%,#6A481F 63%,#C0924E 83%,#765026 100%);}

/* v1.5: section headings span the container, subtitles follow below. Brass is a rare thin detail, never a heading. Oxide Mist is archived and has no active CSS token. */