:root {
  --bg: #f5f7f6;
  --surface: #ffffff;
  --surface-2: #eef3f0;
  --text: #15201b;
  --muted: #56675f;
  --border: #dbe4df;
  --accent: #0e7a4e;
  --accent-hover: #0a613d;
  --accent-text: #0b5e3c;
  --accent-soft: #e3f2ea;
  --on-accent: #ffffff;
  --danger: #b42318;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 40, 28, .05), 0 6px 20px rgba(15, 40, 28, .06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1412;
    --surface: #161f1b;
    --surface-2: #1c2722;
    --text: #e6eee9;
    --muted: #9cb0a6;
    --border: #283630;
    --accent: #2fb57a;
    --accent-hover: #3fcb8c;
    --accent-text: #63d6a1;
    --accent-soft: #163428;
    --on-accent: #06140d;
    --danger: #ff8a80;
    --shadow: none;
  }
}

*, *::before, *::after { box-sizing: border-box; }

[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--accent-text); text-underline-offset: 2px; }
a:hover { color: var(--accent-hover); }

.wrap { max-width: 820px; margin: 0 auto; padding: 0 16px; }

/* ---------- topo ---------- */

.topo { background: var(--surface); border-bottom: 1px solid var(--border); }
.topo-in { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 20px; padding-top: 12px; padding-bottom: 12px; }
.marca { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 1.15rem; color: var(--text); text-decoration: none; letter-spacing: -.01em; }
.marca img { width: 30px; height: 30px; }
.menu { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: .95rem; }
.menu a { color: var(--muted); text-decoration: none; }
.menu a:hover { color: var(--accent-text); }

/* ---------- conteúdo ---------- */

main { padding: 20px 0 48px; }

.trilha { font-size: .85rem; color: var(--muted); margin: 0 0 8px; }
.trilha a { color: var(--muted); }

h1 { font-size: clamp(1.6rem, 4.5vw, 2.15rem); line-height: 1.2; margin: 0 0 8px; letter-spacing: -.02em; }
h2 { font-size: 1.4rem; line-height: 1.3; margin: 2.2em 0 .6em; letter-spacing: -.01em; }
h3 { font-size: 1.1rem; line-height: 1.35; margin: 1.6em 0 .4em; }
.lead { color: var(--muted); font-size: 1.05rem; margin: 0 0 20px; }

.painel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

/* ---------- formulário ---------- */

.campos { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.campo { display: flex; flex-direction: column; gap: 6px; }
.campo > span { font-weight: 600; font-size: .95rem; }
.campo small, .dica { color: var(--muted); font-size: .85rem; line-height: 1.4; }

input[type=text], input[type=number], input[type=date], select {
  width: 100%;
  font: inherit;
  font-size: 1.05rem;
  color: var(--text);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 11px 12px;
  min-height: 48px;
}
input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.moeda { position: relative; }
.moeda::before { content: "R$"; position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: .95rem; pointer-events: none; }
.moeda input { padding-left: 40px; }

.check { display: flex; align-items: flex-start; gap: 10px; font-size: .95rem; cursor: pointer; padding: 4px 0; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 100%;
  margin-top: 20px;
  font: inherit; font-weight: 700; font-size: 1.1rem;
  color: var(--on-accent);
  background: var(--accent);
  border: 0;
  border-radius: 10px;
  min-height: 52px;
  cursor: pointer;
}
.btn:hover { background: var(--accent-hover); }

/* ---------- resultado ---------- */

.resultado { margin-top: 20px; scroll-margin-top: 16px; }
.destaque {
  display: flex; flex-direction: column; gap: 2px;
  background: var(--accent-soft);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 12px;
}
.destaque span { font-weight: 600; color: var(--accent-text); }
.destaque strong { font-size: clamp(1.8rem, 7vw, 2.4rem); line-height: 1.15; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.destaque small { color: var(--muted); }

.tabela-resultado { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.tabela-resultado th, .tabela-resultado td { padding: 10px 4px; border-bottom: 1px solid var(--border); vertical-align: top; }
.tabela-resultado th { text-align: left; font-weight: 500; }
.tabela-resultado th small { display: block; color: var(--muted); font-size: .82rem; font-weight: 400; }
.tabela-resultado td { text-align: right; white-space: nowrap; font-weight: 600; }
.tabela-resultado tr.menos td { color: var(--danger); }
.tabela-resultado tr.info th, .tabela-resultado tr.info td { color: var(--muted); font-weight: 400; }
.tabela-resultado tr.total th, .tabela-resultado tr.total td { font-weight: 800; border-bottom: 0; padding-top: 14px; }

.notas { margin: 14px 0 0; padding-left: 20px; color: var(--muted); font-size: .9rem; line-height: 1.5; }
.notas li + li { margin-top: 4px; }
.erro { color: var(--danger); font-weight: 600; margin: 0; }

/* ---------- compartilhar ---------- */

.acoes { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 0; }
.btn-sec {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-size: .95rem; font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 9px 14px;
  min-height: 44px;
  text-decoration: none;
  cursor: pointer;
}
.btn-sec:hover { border-color: var(--accent); color: var(--accent-text); }
.embed-box { flex-basis: 100%; font-size: .95rem; }
.embed-box summary { cursor: pointer; color: var(--muted); padding: 4px 0; }
.embed-box textarea { width: 100%; font: .85rem/1.4 ui-monospace, Consolas, monospace; color: var(--text); background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px; padding: 10px; margin: 8px 0; resize: vertical; }

/* ---------- artigo ---------- */

.artigo { margin-top: 8px; }
.artigo p, .artigo li { max-width: 68ch; }
.artigo ol, .artigo ul { padding-left: 22px; }
.artigo li + li { margin-top: 4px; }
.tabela-rolagem { overflow-x: auto; margin: 12px 0; }
.artigo table { width: 100%; border-collapse: collapse; font-size: .95rem; font-variant-numeric: tabular-nums; background: var(--surface); border-radius: 10px; }
.artigo th, .artigo td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; }
.artigo thead th { background: var(--surface-2); }
.exemplo { background: var(--surface-2); border-left: 4px solid var(--accent); border-radius: 0 10px 10px 0; padding: 12px 16px; margin: 16px 0; }
.exemplo p { margin: .3em 0; }
.atualizado { color: var(--muted); font-size: .9rem; margin-top: 32px; }

/* ---------- cartões ---------- */

.cartoes { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin: 16px 0; }
.cartao {
  display: flex; flex-direction: column; gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  color: var(--text);
  text-decoration: none;
  transition: border-color .15s, transform .15s;
}
.cartao:hover { border-color: var(--accent); transform: translateY(-2px); color: var(--text); }
.cartao-ico { font-size: 1.6rem; line-height: 1; }
.cartao strong { font-size: 1.05rem; }
.cartao span:last-child { color: var(--muted); font-size: .92rem; line-height: 1.4; }

.aviso-legal { color: var(--muted); font-size: .85rem; line-height: 1.5; }

/* ---------- rodapé ---------- */

.rodape { background: var(--surface); border-top: 1px solid var(--border); padding: 24px 0; font-size: .92rem; color: var(--muted); }
.rodape nav { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-bottom: 10px; }
.rodape a { color: var(--muted); }
.rodape p { margin: 6px 0 0; }

/* ---------- modo incorporado (?embed=1) ---------- */

.embed body { background: transparent; }
.embed .topo, .embed .rodape, .embed .trilha, .embed .lead, .embed .acoes,
.embed .artigo, .embed .atualizado, .embed .relacionadas, .embed .aviso-legal { display: none; }
.embed main { padding: 8px 0; }
.embed h1 { font-size: 1.3rem; }
.creditos-embed { display: none; font-size: .85rem; color: var(--muted); margin-top: 10px; }
.embed .creditos-embed { display: block; }

@media (max-width: 480px) {
  body { font-size: 16px; }
  .painel { padding: 16px; }
}