/* M.A.T.H. v25.7 — additive homepage experience layer. */
.sprint-note{margin:-2px 0 12px;font-size:13px;line-height:1.4;font-weight:760;color:#54717d}.grounds-grid .ground.world-open{display:flex;text-decoration:none;cursor:pointer;transition:transform .16s ease,filter .16s ease}.grounds-grid .ground.world-open:hover,.grounds-grid .ground.open:hover,.grounds-grid .ground.equation-open:hover{transform:translateY(-4px);filter:brightness(1.08)}.grounds-grid .ground.world-open b{margin-top:auto}.grounds-all{display:flex;justify-content:center;margin-top:16px}.grounds-all a{display:inline-flex;text-decoration:none;background:#073e68;color:#fff;border:2px solid #e7bd56;border-radius:12px;padding:11px 18px;font-weight:1000;letter-spacing:.04em;box-shadow:0 5px 14px #17354f2b}.grounds-all a:hover{filter:brightness(1.12)}