.usst-about-hero{background:linear-gradient(135deg,#3b1642,var(--brand-primary-dark))}.usst-credentials-section,.usst-roadmap-section{background:var(--brand-bg-alt)}.usst-about-metrics{background:#fff}.usst-metric-grid article{border-top:4px solid var(--brand-secondary)}.usst-credential-grid article{border-top:4px solid var(--brand-accent)}