/* M³ Investimentos — base visual do site (home e ferramentas). Só Poppins. */
:root {
  --bg: #0b0b0a;
  --bg-2: #121211;
  --card: #161614;
  --line: #2a2925;
  --ink: #F4F3EE;
  --mute: #9a978f;
  --soft: #6f6c64;
  --green: #22c55e;
  --green-hi: #4ade80;
  --green-dim: rgba(34, 197, 94, .10);
  --red: #f87171;
  --r: 10px;
  --body: #cfccc4;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: Poppins, system-ui, sans-serif; font-weight: 300; line-height: 1.6; }
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { font-weight: 500; letter-spacing: -.02em; line-height: 1.15; margin: 0; }
b, strong { font-weight: 500; }

/* Barra do topo */
.top { position: sticky; top: 0; z-index: 10; background: #000; border-bottom: 1px solid #1f1e1b; color: #F4F3EE; --ink: #F4F3EE; --mute: #9a978f; }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand svg { width: 34px; height: auto; color: var(--ink); }
.brand span { font-size: 14px; letter-spacing: .02em; }
.nav { display: flex; gap: 22px; margin-left: auto; font-size: 14px; }
.nav a { text-decoration: none; color: var(--mute); }
.nav a:hover, .nav a[aria-current] { color: var(--ink); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: inherit; font-weight: 500; font-size: 14px; text-decoration: none; border: 1px solid var(--ink); color: var(--ink); background: transparent; border-radius: 6px; padding: 10px 16px; cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--ink); color: var(--bg); }
.btn.solid { background: var(--green); border-color: var(--green); color: #04130a; }
.btn.solid:hover { background: var(--green-hi); border-color: var(--green-hi); }
@media (max-width: 760px) {
  .top .wrap { gap: 14px; }
  .nav { gap: 14px; font-size: 13px; }
  .brand span, .top .btn { display: none; }
}

/* Cabeçalho das páginas internas */
.crumb { font-size: 12.5px; color: var(--soft); margin: 34px 0 10px; }
.crumb a { color: var(--mute); text-decoration: none; }
.crumb a:hover { color: var(--ink); }
.page-h1 { font-size: clamp(28px, 4.4vw, 42px); }
.page-lead { color: var(--mute); max-width: 62ch; margin: 12px 0 0; font-size: 16px; }

/* Calculadora: formulário + resultado */
.calc { display: grid; grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: 24px; margin: 32px 0 0; align-items: start; }
@media (max-width: 880px) { .calc { grid-template-columns: 1fr; } }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; }
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 13px; color: var(--mute); }
.field small { font-size: 12px; color: var(--soft); }
.inp { display: flex; align-items: stretch; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); }
.inp:focus-within { border-color: var(--ink); }
.inp span { display: flex; align-items: center; padding: 0 12px; color: var(--mute); font-size: 14px; }
.inp input, .inp select { flex: 1; min-width: 0; font: inherit; font-size: 16px; color: var(--ink); background: transparent; border: 0; padding: 12px; outline: none; }
.inp select { padding-right: 8px; }
.inp select option { color: #000; }
.inp > select.unit { flex: 0 0 auto; border-left: 1px solid var(--line); color: var(--mute); font-size: 14px; }
.row2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }
.row2 > *, .inp input { min-width: 0; width: 100%; }
.seg { display: flex; gap: 6px; flex-wrap: wrap; }
.seg button { font: inherit; font-size: 13px; color: var(--mute); background: transparent; border: 1px solid var(--line); border-radius: 999px; padding: 7px 12px; cursor: pointer; }
.seg button[aria-pressed="true"] { color: var(--bg); background: var(--ink); border-color: var(--ink); }

.big { font-size: clamp(34px, 5vw, 48px); font-weight: 500; letter-spacing: -.02em; line-height: 1.05; color: var(--ink); margin: 6px 0 0; }
.big-l { font-size: 13px; color: var(--mute); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin: 20px 0 0; }
.stat { border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; }
.stat .l { font-size: 12px; color: var(--mute); }
.stat .v { font-size: 18px; font-weight: 500; margin-top: 2px; }
.stat.hl { border-color: var(--mute); background: var(--bg-2); }
.chart { position: relative; height: 300px; margin: 22px 0 0; }
.note { font-size: 12.5px; color: var(--soft); margin: 16px 0 0; }
.note b { color: var(--mute); }

details.tbl { margin: 18px 0 0; border-top: 1px solid var(--line); }
details.tbl summary { cursor: pointer; padding: 14px 0 6px; font-size: 14px; color: var(--mute); list-style: none; }
details.tbl summary::-webkit-details-marker { display: none; }
details.tbl summary::after { content: " +"; }
details.tbl[open] summary::after { content: " \2013"; }
.tscroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; font-variant-numeric: tabular-nums; }
th, td { text-align: right; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { font-weight: 500; color: var(--mute); font-size: 12px; }

/* Texto educativo abaixo da calculadora */
.edu { max-width: 720px; margin: 64px 0 0; }
.edu h2 { font-size: 24px; margin: 40px 0 12px; }
.edu p, .edu li { color: var(--body); }
.edu ul, .edu ol { padding-left: 20px; }
.edu .formula { font-size: 15px; background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; overflow-x: auto; color: var(--ink); }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 400; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--mute); }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { margin: 0 0 16px; }

/* Chamada pra consultoria / outras ferramentas */
.cta-box { margin: 64px 0 0; border: 1px solid var(--line); border-radius: var(--r); padding: 26px; display: flex; gap: 20px; align-items: center; justify-content: space-between; flex-wrap: wrap; background: var(--bg-2); }
.cta-box h3 { font-size: 20px; }
.cta-box p { margin: 6px 0 0; color: var(--mute); }
.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; margin: 22px 0 0; }
.tool { display: block; text-decoration: none; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; transition: border-color .15s; }
.tool:hover { border-color: var(--mute); }
.tool .k { font-size: 12px; color: var(--soft); }
.tool b { display: block; font-size: 17px; margin: 4px 0 6px; }
.tool span { font-size: 13.5px; color: var(--mute); }

/* Rodapé */
.foot { margin: 80px 0 0; border-top: 1px solid var(--line); background: var(--bg-2); }
.foot .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; padding-top: 40px; padding-bottom: 28px; font-size: 13.5px; }
.foot h4 { font-size: 13px; font-weight: 500; margin: 0 0 10px; }
.foot a { display: block; color: var(--mute); text-decoration: none; padding: 3px 0; }
.foot a:hover { color: var(--ink); }
.foot .brand svg { width: 40px; }
.foot .legal { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 18px; color: var(--soft); font-size: 12px; }
@media (max-width: 760px) { .foot .wrap { grid-template-columns: 1fr 1fr; } .foot .wrap > :first-child { grid-column: 1 / -1; } }

/* Artigos (Aprender) */
.artigo { max-width: 720px; margin: 0 auto; }
.artigo .meta { font-size: 13px; color: var(--soft); margin: 14px 0 0; }
.artigo .resumo { border-left: 2px solid var(--mute); padding: 4px 0 4px 16px; margin: 28px 0 0; color: var(--body); }
.artigo .resumo b { color: var(--ink); }
.artigo h2 { font-size: 24px; margin: 44px 0 12px; }
.artigo h3 { font-size: 18px; margin: 28px 0 8px; }
.artigo p, .artigo li { color: var(--body); font-size: 16.5px; }
.artigo ul, .artigo ol { padding-left: 22px; }
.artigo li { margin: 6px 0; }
.artigo a { color: var(--ink); text-decoration-color: var(--soft); text-underline-offset: 3px; }
.artigo .caixa { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 18px 20px; margin: 24px 0; }
.artigo .caixa p { margin: 6px 0 0; font-size: 15px; }
.artigo .caixa b { color: var(--ink); }
.artigo table { font-size: 14.5px; margin: 8px 0 0; }
.artigo td { white-space: normal; text-align: left; vertical-align: top; }
.artigo th { text-align: left; }
.artigo .ferr { display: flex; gap: 16px; align-items: center; justify-content: space-between; flex-wrap: wrap; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 18px 20px; margin: 28px 0; }
.artigo .ferr p { margin: 0; color: var(--ink); font-size: 15.5px; }
.artigo .ferr a.btn { color: #04130a; }
.lista-art { display: grid; gap: 12px; margin: 32px 0 0; }
.lista-art a { display: grid; grid-template-columns: 48px 1fr; gap: 4px 16px; text-decoration: none; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; }
.lista-art a:hover { border-color: var(--mute); }
.lista-art .n { grid-row: 1 / 4; font-size: 26px; font-weight: 500; color: var(--soft); }
.lista-art .k { font-size: 12px; color: var(--soft); }
.lista-art b { font-size: 18px; }
.lista-art span:last-child { color: var(--mute); font-size: 14px; }

/* Faixas de fundo alternadas (estilo AUVP): preto, cinza e claro */
.faixa { padding: 88px 0; }
.faixa.preta { background: #0b0b0a; }
.faixa.cinza { background: #E7E6E1; --bg: #E7E6E1; --bg-2: #dedcd5; --card: #F4F3EE; --line: #cfccc2; --ink: #141412; --mute: #5f5c55; --soft: #8a877f; --body: #33322e; color: var(--ink); }
.faixa.clara { background: #F4F3EE; --bg: #F4F3EE; --bg-2: #ebe9e3; --card: #ffffff; --line: #dcd9cf; --ink: #141412; --mute: #5f5c55; --soft: #8a877f; --body: #33322e; color: var(--ink); }
.faixa.cinza .btn:not(.solid), .faixa.clara .btn:not(.solid) { border-color: #141412; color: #141412; }
.faixa.cinza .btn:not(.solid):hover, .faixa.clara .btn:not(.solid):hover { background: #141412; color: #F4F3EE; }
@media (max-width: 760px) { .faixa { padding: 64px 0; } }