/* Tensão Trativa — estilos da calculadora (identidade Aplicar) */
:root {
  --bg: #0f1420; --card: #1a2233; --card2: #222c42; --line: #313d57;
  --fg: #e7ecf4; --muted: #93a1bd;
  /* Identidade Aplicar — verde da logo */
  --brand: #20BD67; --brand-dark: #199450; --brand-darker: #11703C;
  --accent: #20BD67; --accent2: #34d399; --info: #4aa3ff;
  --danger: #f87171; --warn: #fbbf24; --radius: 12px;
}
@media (prefers-color-scheme: light) {
  :root { --bg:#f4f6fb; --card:#fff; --card2:#f0f3f9; --line:#dce3f0; --fg:#16203a; --muted:#5a6b8c; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 15px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
.topbar { padding: 12px 20px; border-bottom: 1px solid var(--line);
  border-top: 3px solid var(--brand);
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.topbar .logo { height: 30px; width: auto; display: block; }
.topbar h1 { font-size: 18px; margin: 0; font-weight: 650; }
.muted { color: var(--muted); font-weight: 400; font-size: .85em; }
main { max-width: 1240px; margin: 0 auto; padding: 20px; }
.card { background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 18px; margin-bottom: 16px; }
.card h2 { font-size: 15px; margin: 0 0 12px; font-weight: 620; }
h3.step { font-size: 13px; margin: 20px 0 10px; font-weight: 620;
  display: flex; align-items: center; gap: 8px; text-transform: uppercase; letter-spacing: .04em; }
h3.step:first-of-type { margin-top: 6px; }
.num { display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; border-radius: 50%; background: var(--brand); color: #06121f;
  font-size: 12px; font-weight: 800; letter-spacing: 0; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
label .u { font-size: 11px; color: var(--muted); }
input, select { background: var(--card2); color: var(--fg); border: 1px solid var(--line);
  border-radius: 8px; padding: 8px 10px; font-size: 14px; font-family: inherit; }
input:focus, select:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
/* Campo travado pelo modo automático. Sem isto ele fica idêntico a um campo
   editável — o usuário digita, nada acontece, e parece que o cálculo travou. */
input:disabled, select:disabled {
  background: transparent; border-style: dashed; color: var(--muted);
  cursor: not-allowed; opacity: .8;
}
.auto-tag { display: inline-block; margin-left: 5px; padding: 1px 6px; border-radius: 999px;
  font-size: 9.5px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  color: var(--brand); border: 1px solid var(--brand); background: rgba(32,189,103,.10);
  vertical-align: 1px; }
input[type=checkbox], input[type=radio] { accent-color: var(--brand); width: 16px; height: 16px; }
.hint { font-size: 11.5px; color: var(--muted); line-height: 1.45; font-weight: 400; }
.hint.block { margin: 0 0 12px; }
.hint b { color: var(--fg); }
.btn { background: var(--card2); color: var(--fg); border: 1px solid var(--line);
  border-radius: 8px; padding: 9px 16px; font-size: 14px; cursor: pointer; font-family: inherit; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: #06121f; border-color: var(--accent); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.small { padding: 5px 10px; font-size: 12.5px; }
.actions { display: flex; align-items: center; gap: 12px; margin: 4px 0 18px; flex-wrap: wrap; }
.status { font-size: 13px; color: var(--muted); }
.status.err { color: var(--danger); }
.status.ok { color: var(--accent2); }
.hidden { display: none !important; }
.file-btn { display: inline-flex; align-items: center; cursor: pointer; }

/* Parâmetros gerais */
.params { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; align-items: start; }
label.chk { flex-direction: row; align-items: flex-start; gap: 9px; color: var(--fg); font-size: 13.5px; }
label.chk span { display: block; }
label.chk .hint { display: block; margin-top: 2px; }

/* Tabela de aparelhos */
.tab-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
table.aparelhos { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.aparelhos th, table.aparelhos td { padding: 7px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
table.aparelhos th { background: var(--card2); font-size: 11.5px; color: var(--muted);
  text-transform: uppercase; letter-spacing: .04em; font-weight: 650; position: sticky; top: 0; }
table.aparelhos th small { text-transform: none; letter-spacing: 0; font-weight: 400; }
/* Símbolos que NÃO podem ser maiusculizados: σt viraria ΣT, e t (duração) e
   T (intervalo entre descargas) viram o mesmo "T". */
th .simb { text-transform: none; letter-spacing: 0; font-weight: 650; }
.geo .simb { text-transform: none; letter-spacing: 0; font-style: normal; color: var(--fg); }
table.aparelhos .num-col { text-align: right; }
table.aparelhos td.ponto { color: var(--muted); font-size: 12.5px; white-space: normal; }
table.aparelhos input { width: 74px; padding: 5px 7px; text-align: right; }
table.aparelhos input.qtd-inp { width: 66px; font-weight: 650; }
table.aparelhos tr.tem-qtd { background: rgba(32,189,103,.07); }
table.aparelhos tfoot td { border-bottom: none; border-top: 1px solid var(--line);
  background: var(--card2); font-weight: 650; }
table.aparelhos .ro { color: var(--fg); }
.est { color: var(--warn); cursor: help; font-size: 11px; }
body:not(.editando) .edit-only { display: none; }

/* Método */
.metodo-opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin-top: 12px; }
.metodo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
label.opt { flex-direction: row; align-items: flex-start; gap: 10px; cursor: pointer;
  border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; background: var(--card2); }
label.opt:has(input:checked) { border-color: var(--brand); background: rgba(32,189,103,.08); }
label.opt b { color: var(--fg); font-size: 14px; }
label.opt small { color: var(--muted); font-size: 11.5px; display: block; margin-top: 1px; }
label.opt p { margin: 6px 0 0; font-size: 12px; color: var(--muted); line-height: 1.5; }
.consumo-grid { display: grid; grid-template-columns: minmax(180px, 1.4fr) 1fr 1fr; gap: 14px; align-items: end; }
@media (max-width: 700px) { .consumo-grid { grid-template-columns: 1fr; } }

/* Readout de vazão */
.vazao-readout { margin-top: 14px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--card2); padding: 12px 14px; }
.vr-big { display: flex; gap: 26px; flex-wrap: wrap; align-items: flex-end; }
.vr-big > div { display: flex; flex-direction: column; }
.vr-big span { font-size: 11.5px; color: var(--muted); }
.vr-big b { font-size: 20px; line-height: 1.2; }
.vr-big b.q { color: var(--accent2); }
.vr-nota { font-size: 11.5px; color: var(--muted); margin-top: 8px; line-height: 1.5; }
.vr-det { margin-top: 10px; }
.vr-det summary { cursor: pointer; font-size: 12.5px; color: var(--accent); }
table.mini { width: 100%; border-collapse: collapse; font-size: 12.5px; margin-top: 8px; }
table.mini th, table.mini td { padding: 4px 8px; border-bottom: 1px solid var(--line); text-align: right; }
table.mini th:first-child, table.mini td:first-child { text-align: left; }
table.mini th { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .03em; }

/* Inclinação / diâmetro */
.dupla { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.dupla > div > label { margin-bottom: 10px; max-width: 220px; }
.add-row { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; }
.add-row label { flex: 1; min-width: 220px; }

/* Contribuintes */
.contrib-box { margin-top: 14px; border-top: 1px dashed var(--line); padding-top: 12px; }
.contrib-box h4 { font-size: 12px; color: var(--muted); margin: 0 0 8px; font-weight: 650;
  text-transform: uppercase; letter-spacing: .04em; }
.contrib-list { display: flex; flex-wrap: wrap; gap: 8px; }
.contrib-list label { flex-direction: row; align-items: center; gap: 7px; color: var(--fg);
  border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; font-size: 12.5px;
  background: var(--card2); cursor: pointer; }
.contrib-list label:has(input:checked) { border-color: var(--brand); background: rgba(32,189,103,.12); }
.contrib-list .nenhum { color: var(--muted); font-size: 12.5px; }

/* Cards de trecho */
.trechos { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 14px; }
.trecho { border: 1px solid var(--line); border-radius: 10px; background: var(--card2); padding: 12px 14px; }
.trecho.falha { border-color: var(--danger); }
.trecho.aprovado { border-color: var(--accent2); }
.tr-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.tr-head input.nome { flex: 1; font-weight: 650; padding: 5px 8px; font-size: 13.5px; }
.tr-rm, .tr-dup { background: none; border: none; cursor: pointer; font-size: 18px;
  padding: 0 4px; line-height: 1; }
.tr-rm { color: var(--danger); }
.tr-dup { color: var(--muted); font-size: 17px; }
.tr-rm:hover { filter: brightness(1.2); }
.tr-dup:hover { color: var(--accent); }
.tr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tr-grid label { font-size: 11.5px; }
.tr-grid input, .tr-grid select { padding: 5px 8px; font-size: 13px; }
.tr-auto { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 7px; }
.tr-auto label { flex-direction: row; align-items: center; gap: 6px; font-size: 11.5px; color: var(--muted); }
.tr-auto input[type=checkbox] { width: 14px; height: 14px; }
.tr-vaz { display: flex; gap: 18px; margin-top: 11px; padding-top: 10px; border-top: 1px dashed var(--line); }
.tr-vaz > div { display: flex; flex-direction: column; }
.tr-vaz span { font-size: 10.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.tr-vaz b { font-size: 15px; }
.tr-vaz b.q { color: var(--accent2); }
.tr-recebe { margin-top: 10px; font-size: 11.5px; color: var(--muted); }
.tr-recebe h4 { font-size: 10.5px; color: var(--muted); margin: 0 0 6px; font-weight: 650;
  text-transform: uppercase; letter-spacing: .04em; }
.tr-recebe .contrib-list label { padding: 4px 10px; font-size: 12px; }
.tr-consumo { margin-top: 10px; }
.tr-consumo label { font-size: 11.5px; max-width: 190px; }
.tr-consumo input { padding: 5px 8px; font-size: 13px; }
.tr-aps { margin-top: 10px; }
.tr-aps summary { cursor: pointer; font-size: 12px; color: var(--accent); }
.tr-aps table { width: 100%; border-collapse: collapse; font-size: 12.5px; margin-top: 8px; }
.tr-aps td { padding: 3px 4px; border-bottom: 1px solid var(--line); }
.tr-aps td:last-child { text-align: right; width: 66px; }
.tr-aps input { width: 60px; padding: 4px 6px; text-align: right; font-size: 12.5px; }
.vazio { color: var(--muted); font-size: 13px; margin: 4px 0 0; }

/* Resultados */
.resumo { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.pill { font-size: 12.5px; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--card2); }
.pill.ok { color: var(--accent2); border-color: var(--accent2); }
.pill.err { color: var(--danger); border-color: var(--danger); }
.pill.warn { color: var(--warn); border-color: var(--warn); }
table.resultados { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.resultados th, table.resultados td { padding: 7px 9px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
table.resultados th { background: var(--card2); font-size: 10.5px; color: var(--muted);
  text-transform: uppercase; letter-spacing: .03em; font-weight: 650; }
table.resultados th small { text-transform: none; letter-spacing: 0; font-weight: 400; }
table.resultados .num-col { text-align: right; }
table.resultados td.bad { color: var(--danger); font-weight: 650; }
table.resultados td.good { color: var(--accent2); }
table.resultados tr.linha-falha { background: rgba(248,113,113,.07); }
.sit { font-weight: 650; }
.sit.ok { color: var(--accent2); }
.sit.err { color: var(--danger); }

.detalhes { margin-top: 16px; display: grid; gap: 10px; }
.det { border: 1px solid var(--line); border-radius: 10px; background: var(--card2); }
.det summary { cursor: pointer; padding: 10px 14px; font-size: 13px; font-weight: 600; }
.det[open] summary { border-bottom: 1px solid var(--line); }
.det-body { padding: 12px 14px; }
.checks { display: grid; gap: 8px; }
.check { display: grid; grid-template-columns: 22px 1fr auto; gap: 10px; align-items: start;
  padding: 8px 10px; border-radius: 8px; background: var(--card); border: 1px solid var(--line); }
.check.ok { border-color: rgba(52,211,153,.4); }
.check.err { border-color: rgba(248,113,113,.5); background: rgba(248,113,113,.06); }
.check .ico { font-size: 15px; line-height: 1.3; }
.check .txt b { font-size: 13px; display: block; }
.check .txt small { font-size: 11px; color: var(--muted); display: block; margin-top: 2px; }
.check .val { text-align: right; font-size: 13px; white-space: nowrap; }
.check .val small { display: block; font-size: 10.5px; color: var(--muted); }
.geo { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 12px; padding-top: 10px;
  border-top: 1px dashed var(--line); font-size: 12px; }
.geo > div span { display: block; font-size: 10.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.geo > div b { font-size: 13.5px; }
/* Vazão acima da capacidade da seção: os números de lâmina/velocidade/tensão
   ficam travados no limite e NÃO variam com a declividade. Precisam ser lidos
   como inválidos, não como resultado. */
.alerta { margin-bottom: 12px; padding: 10px 12px; border-radius: 8px; font-size: 12.5px;
  line-height: 1.6; border: 1px solid var(--danger); background: rgba(248,113,113,.09); }
.alerta b { color: var(--fg); }
.alerta > b:first-child { color: var(--danger); display: block; margin-bottom: 3px; }
.geo.invalida { opacity: .45; text-decoration: line-through; text-decoration-color: var(--danger); }
.geo.invalida b { font-weight: 400; }
.sug { margin-top: 10px; font-size: 12px; color: var(--warn); line-height: 1.55; }
.sug b { color: var(--fg); }

/* Teoria */
.teoria summary { cursor: pointer; font-size: 14px; font-weight: 620; }
.teoria-body { margin-top: 14px; font-size: 13px; line-height: 1.65; }
.teoria-body h4 { font-size: 12.5px; margin: 16px 0 6px; color: var(--brand); text-transform: uppercase; letter-spacing: .04em; }
.teoria-body h4:first-child { margin-top: 0; }
.teoria-body p { margin: 0 0 8px; color: var(--muted); }
.teoria-body b { color: var(--fg); }
.teoria-body code { font-family: ui-monospace, monospace; font-size: 12.5px; color: var(--accent2);
  background: var(--card2); padding: 2px 6px; border-radius: 5px; }
.teoria-body ul { margin: 4px 0 8px; padding-left: 20px; color: var(--muted); }
.teoria-body li { margin-bottom: 4px; }
.teoria-body a { color: var(--info); }

.disclaimer { max-width: 1240px; margin: 8px auto 0; padding: 12px 16px; border: 1px solid var(--warn);
  border-radius: 10px; background: rgba(251,191,36,.08); color: var(--fg); font-size: 12.5px; line-height: 1.5; }
.disclaimer b { color: var(--warn); }
.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 20px; }

@media (max-width: 900px) {
  .trechos { grid-template-columns: 1fr; }
}