:root{--azul:#13438f;--azul-escuro:#0d3270;--azul-claro:#e9effa;--vermelho:#d31119;--fundo:#f4f6fa;--papel:#fff;--tinta:#16202e;--suave:#566072;--linha:#d9dfe9;--certo:#17653a;--certo-claro:#e6f4ec;--erro:#a8201a;--erro-claro:#fbeaea;--alerta:#8a5a00;--alerta-claro:#fdf3dd}*{box-sizing:border-box}html,body{background:var(--fundo);color:var(--tinta);-webkit-font-smoothing:antialiased;margin:0;font:16px/1.55 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,system-ui,sans-serif}a{color:inherit;text-decoration:none}h1{margin:0 0 4px;font-size:1.5rem;line-height:1.25}h2{margin:0 0 10px;font-size:1.05rem}:focus-visible{outline:3px solid var(--azul);outline-offset:2px}.so-leitor{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.casca{min-height:100dvh}.lateral{display:none}.topo{z-index:3;background:var(--papel);border-bottom:1px solid var(--linha);justify-content:space-between;align-items:center;height:54px;padding:0 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a.certa{background:var(--certo-claro);border-color:var(--certo);color:var(--certo)}.grade a.errada{background:var(--erro-claro);border-color:var(--erro);color:var(--erro)}.questao{flex-direction:column;gap:12px;display:flex}.questao-topo{justify-content:space-between;align-items:center;gap:12px;display:flex}.contagem{color:var(--suave);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:.85rem}.questao h1{margin:6px 0 0;font-size:1.15rem}.enunciado{flex-direction:column;gap:12px;display:flex}.enunciado p{margin:0}.enunciado img{border:1px solid var(--linha);background:#fff;border-radius:6px;max-width:100%;height:auto;margin:2px auto;display:block}.tabela{background:var(--papel);border:1px solid var(--linha);border-radius:10px;overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.9rem}th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--linha);min-width:84px;padding:8px 10px}tr:last-child 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