:root{--bg: #f6f7f9;--card: #ffffff;--texto: #1b1f24;--mudo: #5f6b7a;--borda: #dde2e8;--primaria: #0f766e;--primaria-texto: #ffffff;--perigo: #b42318;--ok-bg: #e7f6ee;--ok-bor: #9bd5b4;--atencao-bg: #fff4dc;--atencao-bor: #f0c36d;--erro-bg: #fdecea;--erro-bor: #f1a9a2;--sombra: 0 1px 2px rgba(0,0,0,.06);color-scheme:light dark}@media (prefers-color-scheme: dark){:root{--bg: #12161b;--card: #1b2128;--texto: #e8ecf1;--mudo: #98a3b1;--borda: #2c3540;--primaria: #2dd4bf;--primaria-texto: #062b27;--perigo: #ff8a80;--ok-bg: #12301f;--ok-bor: #25613d;--atencao-bg: #3a2e12;--atencao-bor: #7a5f1f;--erro-bg: #3a1815;--erro-bor: #7a2a24}}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--texto);font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}h1{font-size:1.25rem;margin:.1rem 0}h2{font-size:1.05rem;margin:0}.pagina{max-width:760px;margin:0 auto;padding:12px 16px 120px}.centro{max-width:460px;margin:18vh auto;padding:0 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