/* Relações, igualdade e localização — 4º ano. */
.decimal-place{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:8px;max-width:620px;margin:auto}.decimal-place div{padding:14px;border:1px solid var(--line);border-radius:12px;background:#fff;text-align:center}.decimal-place strong{display:block;font-size:clamp(25px,5vw,38px)}.hundred-grid{display:grid;grid-template-columns:repeat(10,18px);gap:2px;justify-content:center;margin:14px auto}.hundred-grid span{width:18px;height:18px;background:#fff;border:1px solid #b5c6b8}.hundred-grid span.on{background:#79b89a}.hundred-grid span.tenth{outline:2px solid #235f9b}.sequence-strip{display:flex;flex-wrap:wrap;gap:7px;justify-content:center}.sequence-strip span{min-width:52px;padding:10px;border-radius:10px;background:#fff;border:1px solid var(--line);text-align:center;font-weight:750}.sequence-strip span.hit{background:#e7f3e3;border-color:#146348}.residue-wheel{display:grid;grid-template-columns:repeat(4,minmax(52px,1fr));gap:7px;max-width:520px;margin:auto}.residue-wheel div{padding:10px;background:#fff;border:1px solid var(--line);border-radius:10px;text-align:center}.machine{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}.machine span,.machine strong{padding:12px 16px;border-radius:12px;background:#fff;border:1px solid var(--line);min-width:85px;text-align:center}.machine .op{background:#e7f0fb}.balance-row{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:end;max-width:660px;margin:auto}.balance-pan{min-height:100px;border:2px solid #60806a;border-radius:12px;background:#fff;display:grid;place-items:center;font-size:28px;font-weight:800}.balance-sign{font-size:32px;font-weight:900}.unknown-box{display:inline-grid;place-items:center;min-width:60px;min-height:52px;border:3px solid #235f9b;border-radius:10px;background:#eaf3fb;font-size:25px;font-weight:850}.map-grid{position:relative;display:grid;grid-template-columns:repeat(10,34px);grid-template-rows:repeat(10,34px);width:max-content;max-width:100%;margin:auto;background:#fff}.map-cell{border:1px solid #d1ded4}.map-avatar,.map-goal,.map-landmark{position:absolute;width:26px;height:26px;transform:translate(-50%,-50%);display:grid;place-items:center}.map-avatar{border-radius:50%;background:#235f9b;color:#fff;font-size:13px}.map-goal{border-radius:6px;background:#ffdda0;border:2px solid #946006}.map-landmark{font-size:20px}.route-command{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.street-map{width:100%;max-width:620px;height:auto}.street-map .road{stroke:#607584;stroke-width:12;stroke-linecap:round}.street-map .transversal{stroke:#a4481a;stroke-width:8;stroke-linecap:round}.street-map text{font-size:14px}.direction-badge{display:inline-block;padding:7px 10px;border-radius:999px;background:#e7f0fb;font-weight:800}
@media(max-width:420px){.hundred-grid{grid-template-columns:repeat(10,14px)}.hundred-grid span{width:14px;height:14px}.map-grid{grid-template-columns:repeat(10,27px);grid-template-rows:repeat(10,27px)}.decimal-place{gap:4px}.decimal-place div{padding:10px 4px}.balance-row{gap:5px}.balance-pan{font-size:22px}}