:root{--sol:#f59f00;--sol-2:#ffd43b;--sol-claro:#fff4d6;--tinta:#14213d;--tinta-2:#3d4a66;--fundo:#fbfaf6;--cartao:#fff;--borda:#e7e3d8;--verde:#2f9e44;--raio:14px;--sombra:0 1px 2px rgba(20,33,61,.06),0 8px 24px rgba(20,33,61,.06)}
@media (prefers-color-scheme:dark){:root{--tinta:#eef1f7;--tinta-2:#b4bccd;--fundo:#0f1626;--cartao:#172036;--borda:#28324a;--sol-claro:#2b2410;--sombra:none}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Plus Jakarta Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--fundo);color:var(--tinta);line-height:1.6;font-size:17px}
a{color:inherit;text-decoration-color:var(--sol);text-underline-offset:3px}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.top{border-bottom:1px solid var(--borda);background:var(--cartao);position:sticky;top:0;z-index:5}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.2rem;text-decoration:none;letter-spacing:-.02em}
.logo svg{width:30px;height:30px}.logo b{color:var(--sol)}
nav.menu{display:flex;gap:4px;flex-wrap:wrap}
nav.menu a{text-decoration:none;font-size:.92rem;font-weight:600;padding:6px 10px;border-radius:8px;color:var(--tinta-2)}
nav.menu a:hover,nav.menu a[aria-current]{background:var(--sol-claro);color:var(--tinta)}
.hero{padding:48px 0 24px}
.hero h1{font-size:clamp(1.9rem,4.5vw,2.9rem);line-height:1.15;margin:0 0 12px;letter-spacing:-.03em}
.hero p{font-size:1.1rem;color:var(--tinta-2);max-width:640px;margin:0}
.grade{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin:28px 0}
.card{background:var(--cartao);border:1px solid var(--borda);border-radius:var(--raio);padding:20px;box-shadow:var(--sombra)}
a.card{text-decoration:none;display:block;transition:transform .15s}a.card:hover{transform:translateY(-2px);border-color:var(--sol)}
.card h2,.card h3{margin:.2em 0 .3em;font-size:1.15rem}.card p{margin:0;color:var(--tinta-2);font-size:.95rem}
.ico{font-size:1.6rem}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start;margin:24px 0 48px}
@media (max-width:860px){.layout{grid-template-columns:minmax(0,1fr)}}
.calc{background:var(--cartao);border:1px solid var(--borda);border-radius:var(--raio);padding:22px;box-shadow:var(--sombra)}
.campos{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
label{display:block;font-weight:600;font-size:.9rem;margin-bottom:4px}
label small{font-weight:400;color:var(--tinta-2)}
input,select{width:100%;font:inherit;font-size:1rem;padding:10px 12px;border:1px solid var(--borda);border-radius:10px;background:var(--fundo);color:var(--tinta)}
input:focus,select:focus{outline:2px solid var(--sol);outline-offset:1px}
button,.btn{font:inherit;font-weight:700;border:0;border-radius:10px;padding:11px 18px;background:var(--sol);color:#1b1300;cursor:pointer}
button.sec{background:transparent;border:1px solid var(--borda);color:var(--tinta)}
.resultado{margin-top:20px;padding:18px;border-radius:12px;background:var(--sol-claro);border:1px solid var(--sol)}
.resultado .grande{font-size:2.1rem;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.resultado dl{display:grid;grid-template-columns:1fr auto;gap:4px 16px;margin:12px 0 0;font-size:.95rem}
.resultado dt{color:var(--tinta-2)}.resultado dd{margin:0;font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.tabela{width:100%;border-collapse:collapse;font-size:.93rem}
.tabela th,.tabela td{padding:8px 6px;border-bottom:1px solid var(--borda);text-align:left;vertical-align:middle}
.tabela td.n,.tabela th.n{text-align:right;font-variant-numeric:tabular-nums}
.rolagem{overflow-x:auto}
.aparelhos input{padding:7px 8px;min-width:64px}.aparelhos td:first-child input{min-width:150px}
.x{background:none;color:var(--tinta-2);padding:4px 8px;font-size:1.1rem}
.conteudo{max-width:720px}.conteudo h2{margin-top:1.8em;letter-spacing:-.01em}
.conteudo h3{margin-top:1.4em}
.aviso{font-size:.85rem;color:var(--tinta-2)}
aside .card{margin-bottom:16px}
.ad{min-height:250px;display:flex;align-items:center;justify-content:center;border:1px dashed var(--borda);border-radius:12px;color:var(--tinta-2);font-size:.75rem;margin:20px 0}
.ad.horiz{min-height:100px}
.selo{display:inline-flex;align-items:center;gap:10px;padding:10px 16px;border-radius:999px;font-weight:800;color:#fff}
.bola{width:14px;height:14px;border-radius:50%;display:inline-block;vertical-align:middle;margin-right:6px}
details{border-bottom:1px solid var(--borda);padding:12px 0}summary{font-weight:700;cursor:pointer}
footer{border-top:1px solid var(--borda);padding:28px 0;font-size:.88rem;color:var(--tinta-2);background:var(--cartao)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer nav a{margin-right:14px}
.migalha{font-size:.85rem;color:var(--tinta-2);margin-top:18px}