:root{--c1:#d32f2f;--t1:#fff;--c2:#f57c00;--t2:#1a1a1a;--c3:#fdd835;--t3:#1a1a1a;--c4:#2e7d32;--t4:#fff;--c5:#1565c0;--t5:#fff;--c6:#6a1b9a;--t6:#fff;--c7:#ec407a;--t7:#1a1a1a;--c8:#4dd0e1;--t8:#1a1a1a;--c9:#6d4c41;--t9:#fff;--fundo:#f6f1e7;--papel:#fffdf8;--tinta:#1f1b16;--linha:#d8cfbf;--erro:#ff1744;--costura:#1f1b16;--tam:min(92vw, 62vh, 540px);color:var(--tinta);background:var(--fundo);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{min-height:100vh;margin:0}button,select,input{font:inherit;border:2px solid var(--tinta);background:var(--papel);color:var(--tinta);border-radius:8px;padding:.35em .7em}button{cursor:pointer;font-weight:600}button:disabled{opacity:.4;cursor:default}button:focus-visible,select:focus-visible,input:focus-visible,.tabuleiro:focus-visible{outline-offset:2px;outline:3px solid #1565c0}.topo{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem 1rem;padding:.75rem 1rem;display:flex}.topo 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