:where(.dcu-proof-grid){display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:16px}.dcu-proof-grid>a{display:block;padding:22px;border:1px solid #dbe5ef;border-radius:16px;text-decoration:none}.dcu-proof-card h3{font-size:19px;line-height:1.3;margin:16px 0 8px}.dcu-proof-card p{font-size:14px;line-height:1.6;margin:0 0 18px}