:root {
  --fundo: #0f1b20;
  --painel: #16262d;
  --borda: #264049;
  --texto: #e6f0f2;
  --suave: #9bb3ba;
  --acento: #3ddc97;
  --erro: #ff6b6b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--fundo);
  color: var(--texto);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main { max-width: 36rem; margin: 0 auto; padding: 1.5rem 1rem 4rem; }

h1 { margin: 0; font-size: 1.75rem; color: var(--acento); }
h2 { font-size: 1.15rem; margin: 1.5rem 0 .5rem; }
.sub { color: var(--suave); margin-top: .25rem; }

section, form { margin-top: 1.5rem; }
.bloco { border-top: 1px solid var(--borda); padding-top: .5rem; }

fieldset { border: 1px solid var(--borda); border-radius: .5rem; background: var(--painel); margin: 0 0 1rem; padding: .75rem 1rem 1rem; }
legend { padding: 0 .25rem; color: var(--suave); }

label { display: block; margin: .35rem 0; }
.check { display: flex; gap: .5rem; align-items: flex-start; }
.check input { margin-top: .35rem; }

select, textarea {
  width: 100%; margin-top: .25rem; padding: .5rem;
  background: var(--fundo); color: var(--texto);
  border: 1px solid var(--borda); border-radius: .375rem; font: inherit;
}

button {
  padding: .6rem 1rem; border: 0; border-radius: .375rem; cursor: pointer;
  background: var(--acento); color: #06251a; font: inherit; font-weight: 600;
}
button.sec { background: transparent; color: var(--texto); border: 1px solid var(--borda); }
button.perigo { background: var(--erro); color: #2b0a0a; }
button:disabled { opacity: .5; cursor: not-allowed; }
button:focus-visible, select:focus-visible, textarea:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--acento); outline-offset: 2px;
}

.linha { display: flex; gap: .75rem; flex-wrap: wrap; }
.consent-texto { font-size: .9rem; color: var(--suave); }
.cf-turnstile { margin: 1rem 0; min-height: 65px; }
details { margin-top: 1rem; }
summary { cursor: pointer; color: var(--suave); }

#aviso { padding: .75rem 1rem; border-radius: .375rem; margin-top: 1rem; border: 1px solid var(--borda); }
#aviso.ok { border-color: var(--acento); }
#aviso.erro { border-color: var(--erro); color: var(--erro); }

header { position: relative; }
.sair-topo { position: absolute; top: 0; right: 0; padding: .3rem .75rem; background: transparent; color: var(--suave); border: 1px solid var(--borda); font-weight: 400; }
.sair-topo:hover { color: var(--texto); }
.sair-topo[hidden] { display: none; }