:root {
  --bg: #f4f6f5; --card: #fff; --txt: #1b2421; --sutil: #5b6763; --borda: #d5dcd9;
  --pri: #0f766e; --pri-txt: #fff; --whats: #1f9d55; --erro: #b42318; --ok: #067647;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111715; --card: #1a2220; --txt: #e6ece9; --sutil: #9aa8a3; --borda: #2e3a37;
    --pri: #2bb3a6; --pri-txt: #0b1110; --whats: #34c26e; --erro: #f97066; --ok: #47cd89; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--txt); }
.topo { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: var(--pri); color: var(--pri-txt); }
.topo h1 { margin: 0; font-size: 1.2rem; }
.topo h1 span { opacity: .8; font-weight: 500; }
.abas { display: flex; position: sticky; top: 0; z-index: 2; background: var(--card); border-bottom: 1px solid var(--borda); overflow-x: auto; }
.abas button { flex: 1; padding: 12px 8px; border: 0; background: none; color: var(--sutil); font: inherit; font-weight: 600; border-bottom: 3px solid transparent; cursor: pointer; white-space: nowrap; }
.abas button[aria-selected="true"] { color: var(--pri); border-bottom-color: var(--pri); }
main { max-width: 760px; margin: 0 auto; padding: 12px 16px 48px; }
.card { background: var(--card); border: 1px solid var(--borda); border-radius: 12px; padding: 14px; margin-bottom: 12px; }
h2 { font-size: 1rem; margin: 0 0 10px; grid-column: 1 / -1; }
label { display: block; font-size: .9rem; color: var(--sutil); margin-bottom: 10px; }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 10px; font: inherit; color: var(--txt); background: var(--bg); border: 1px solid var(--borda); border-radius: 8px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--pri); outline-offset: 1px; }
.grade { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 12px; }
.largo, .dica { grid-column: 1 / -1; }
.dica { font-size: .85rem; color: var(--sutil); margin: 0 0 8px; }
.item { display: grid; grid-template-columns: 1fr 64px 96px 36px; gap: 6px; margin-bottom: 8px; }
.item input { margin: 0; }
.remover { border: 0; background: none; color: var(--erro); font-size: 1.4rem; cursor: pointer; }
.btn, .btn-sec { display: inline-block; padding: 10px 14px; border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer; text-align: center; }
.btn { background: var(--pri); color: var(--pri-txt); border: 0; }
.btn.whats { background: var(--whats); color: #fff; }
.btn-sec { background: transparent; color: var(--pri); border: 1px solid var(--pri); }
.topo .btn-sec { color: var(--pri-txt); border-color: var(--pri-txt); }
.link { border: 0; background: none; color: var(--pri); font: inherit; padding: 0; margin: -4px 0 10px; cursor: pointer; }
.acoes { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.arquivo input { display: none; }
.resultado { position: sticky; bottom: 0; box-shadow: 0 -4px 16px rgba(0,0,0,.08); }
.sugerido { display: flex; justify-content: space-between; align-items: baseline; margin: 0 0 8px; font-weight: 600; }
.sugerido strong { font-size: 1.6rem; color: var(--pri); }
dl { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; margin: 0; font-size: .9rem; }
dt { color: var(--sutil); } dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.neg { color: var(--erro); font-weight: 600; } .pos { color: var(--ok); font-weight: 600; }
.erro { color: var(--erro); font-weight: 600; margin: 0 0 8px; }
.aviso { background: color-mix(in srgb, var(--pri) 12%, var(--card)); border-radius: 10px; padding: 10px 12px; margin-bottom: 12px; font-size: .9rem; }
.aviso a { color: var(--pri); }
.lista { list-style: none; padding: 0; margin: 0; }
.lista li { background: var(--card); border: 1px solid var(--borda); border-radius: 12px; padding: 12px 14px; margin-bottom: 8px; }
.lista .linha { display: flex; justify-content: space-between; gap: 8px; }
.lista small { color: var(--sutil); }
.lista .acoes button { padding: 6px 10px; font-size: .85rem; }
.vazio { color: var(--sutil); text-align: center; padding: 24px; }
@media (max-width: 640px) { .resultado { position: static; box-shadow: none; } } /* no celular cobriria o formulário */
@media (max-width: 420px) { .resultado dl { font-size: .85rem; } .item { grid-template-columns: 1fr 52px 80px 28px; } }

#proposta { display: none; }
@media print {
  @page { margin: 16mm; }
  body { background: #fff; color: #000; }
  .topo, .abas, main { display: none !important; }
  #proposta { display: block; font-size: 11pt; }
  #proposta h1 { font-size: 18pt; margin: 0; }
  #proposta .cab { display: flex; justify-content: space-between; border-bottom: 2px solid #0f766e; padding-bottom: 8px; margin-bottom: 16px; }
  #proposta table { width: 100%; border-collapse: collapse; margin: 12px 0; }
  #proposta th, #proposta td { border-bottom: 1px solid #ccc; padding: 6px 4px; text-align: left; }
  #proposta .num { text-align: right; }
  #proposta .total { font-size: 15pt; text-align: right; margin: 12px 0; }
  #proposta .assin { margin-top: 48px; border-top: 1px solid #000; width: 60%; padding-top: 4px; }
}