/* acos.com.br — estilo autossuficiente (sem etapa de build).
   Paleta industrial: grafite/aço + laranja "brasa" para CTA.
   Mobile-first, foco visível, contraste WCAG AA (01-ui-e-acessibilidade.md). */

:root {
  --aco-900: #15171a;
  --aco-800: #1d2024;
  --aco-700: #2a2e34;
  --aco-600: #3a4048;
  --aco-400: #6b7280;
  --aco-300: #9aa1a9;
  --aco-200: #c7ccd1;
  --aco-100: #e8ebee;
  --aco-50: #f5f6f8;
  --brasa-600: #c2410c;
  --brasa-500: #ea580c;
  --brasa-400: #f97316;
  --branco: #ffffff;
  --max: 72rem;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 6px 20px rgba(0, 0, 0, .06);
  --gap: 1.25rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--aco-800);
  background: var(--aco-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { line-height: 1.2; color: var(--aco-900); }
a { color: var(--brasa-600); }
a:hover { color: var(--brasa-500); }
img, svg { max-width: 100%; height: auto; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 1.1rem; }
.narrow { max-width: 50rem; }
.muted { color: var(--aco-400); }

:focus-visible { outline: 3px solid var(--brasa-400); outline-offset: 2px; border-radius: 4px; }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--aco-900); color: #fff;
  padding: .6rem 1rem; z-index: 100;
}
.skip-link:focus { left: .5rem; top: .5rem; }

/* ---------- Header ---------- */
.site-header { background: var(--aco-900); color: var(--aco-100); position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: .75rem 1.1rem; gap: 1rem; }
.brand { display: inline-flex; align-items: baseline; gap: .15rem; text-decoration: none; color: #fff; font-weight: 700; font-size: 1.3rem; }
.brand-mark { color: var(--brasa-400); margin-right: .35rem; }
.brand-tld { color: var(--aco-400); font-weight: 400; font-size: .95rem; }
.site-nav ul { list-style: none; display: flex; gap: 1.1rem; margin: 0; padding: 0; flex-wrap: wrap; align-items: center; }
.site-nav a { color: var(--aco-100); text-decoration: none; font-size: .95rem; }
.site-nav a:hover { color: #fff; text-decoration: underline; }
.nav-cta { background: var(--brasa-500); color: #fff !important; padding: .4rem .8rem; border-radius: 6px; }
.nav-cta:hover { background: var(--brasa-600); text-decoration: none !important; }
.nav-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: 0; cursor: pointer; padding: .4rem; }
.nav-toggle span { width: 24px; height: 2px; background: #fff; display: block; }

.site-search { background: var(--aco-800); padding: .55rem 0; }
.site-search .container { display: flex; gap: .5rem; }
.site-search input { flex: 1; padding: .6rem .8rem; border: 1px solid var(--aco-600); border-radius: 6px; background: var(--aco-900); color: #fff; }
.site-search input::placeholder { color: var(--aco-400); }
.site-search button { padding: .6rem 1.1rem; border: 0; border-radius: 6px; background: var(--brasa-500); color: #fff; font-weight: 600; cursor: pointer; }
.site-search button:hover { background: var(--brasa-600); }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(160deg, var(--aco-900), var(--aco-700)); color: var(--aco-100); padding: 3rem 0 3.25rem; }
.hero h1 { color: #fff; font-size: clamp(1.8rem, 4vw, 2.8rem); margin: 0 0 .6rem; }
.hero-sub { font-size: 1.1rem; color: var(--aco-200); max-width: 42rem; }
.hero-sub strong { color: var(--brasa-400); }
.hero-search { display: flex; gap: .5rem; margin: 1.4rem 0 .8rem; max-width: 38rem; }
.hero-search input { flex: 1; padding: .85rem 1rem; border: 0; border-radius: 8px; font-size: 1rem; }
.hero-search button { padding: .85rem 1.4rem; border: 0; border-radius: 8px; background: var(--brasa-500); color: #fff; font-weight: 700; cursor: pointer; }
.hero-search button:hover { background: var(--brasa-600); }
.hero-hint { color: var(--aco-300); font-size: .95rem; }
.hero-hint a { color: var(--aco-100); }

/* ---------- Sections ---------- */
.section { padding: 2.5rem 0; }
.section-title { font-size: 1.5rem; margin: 0 0 1.2rem; }
.section-tools { background: var(--branco); }
.lead { font-size: 1.1rem; color: var(--aco-600); max-width: 46rem; }

/* ---------- Grids de cartões ---------- */
.cat-grid, .tool-grid, .card-grid { display: grid; gap: var(--gap); }
.cat-grid { grid-template-columns: 1fr; }
.tool-grid { grid-template-columns: 1fr; }
.card-grid { grid-template-columns: 1fr; }

.cat-card, .tool-card {
  display: block; background: var(--branco); border: 1px solid var(--aco-100);
  border-radius: var(--radius); padding: 1.2rem; text-decoration: none; color: inherit;
  box-shadow: var(--shadow); transition: transform .12s ease, border-color .12s ease;
}
.cat-card:hover, .tool-card:hover { transform: translateY(-2px); border-color: var(--brasa-400); }
.cat-card h3, .tool-card h3, .tool-card h2 { margin: 0 0 .4rem; color: var(--aco-900); }
.cat-card p, .tool-card p { margin: 0 0 .6rem; color: var(--aco-400); font-size: .95rem; }
.cat-count { font-size: .85rem; color: var(--brasa-600); font-weight: 600; }

/* ---------- Card de empresa ---------- */
.card-empresa {
  position: relative; background: var(--branco); border: 1px solid var(--aco-100);
  border-radius: var(--radius); padding: 1.1rem 1.2rem; box-shadow: var(--shadow);
}
.card-empresa.is-destaque { border-color: var(--brasa-400); box-shadow: 0 0 0 2px rgba(249,115,22,.18), var(--shadow); }
.badge-destaque {
  display: inline-block; background: var(--brasa-500); color: #fff; font-size: .72rem;
  font-weight: 700; padding: .2rem .55rem; border-radius: 99px; margin-bottom: .5rem; letter-spacing: .02em;
}
.card-nome { margin: 0 0 .3rem; font-size: 1.15rem; }
.card-nome a { color: var(--aco-900); text-decoration: none; }
.card-nome a:hover { color: var(--brasa-600); }
.card-meta { margin: 0 0 .5rem; font-size: .9rem; color: var(--aco-400); }
.card-cat { color: var(--aco-600); font-weight: 600; }
.card-desc { margin: 0 0 .7rem; font-size: .95rem; color: var(--aco-600); }
.card-actions { display: flex; gap: .6rem; flex-wrap: wrap; }
.btn-link { font-weight: 600; text-decoration: none; }
.btn-wa { background: #25d366; color: #053d23 !important; font-weight: 700; padding: .35rem .8rem; border-radius: 6px; text-decoration: none; }

/* Card de empresa NÃO publicada (registro público da Receita) */
.card-naopublicada { border-style: dashed; }
.tag-publico {
  display: inline-block; font-size: .7rem; font-weight: 700; letter-spacing: .02em;
  color: var(--aco-600); background: var(--aco-100); border: 1px solid var(--aco-200);
  padding: .15rem .5rem; border-radius: 99px; margin-bottom: .5rem;
}
.card-registro { margin: .2rem 0 .8rem; display: grid; gap: .35rem; }
.card-registro > div { display: grid; grid-template-columns: 5.5rem 1fr; gap: .2rem .6rem; }
.card-registro dt { margin: 0; font-size: .8rem; font-weight: 700; color: var(--aco-400); text-transform: uppercase; letter-spacing: .03em; }
.card-registro dd { margin: 0; font-size: .9rem; color: var(--aco-700); }

/* ---------- Botões ---------- */
.btn-primary {
  display: inline-block; background: var(--brasa-500); color: #fff; font-weight: 700;
  padding: .7rem 1.3rem; border: 0; border-radius: 8px; text-decoration: none; cursor: pointer;
}
.btn-primary:hover { background: var(--brasa-600); color: #fff; }
.btn-outline {
  display: inline-block; background: transparent; color: var(--brasa-600); font-weight: 700;
  padding: .7rem 1.3rem; border: 2px solid var(--brasa-500); border-radius: 8px; text-decoration: none;
}
.btn-outline:hover { background: var(--brasa-500); color: #fff; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { padding-top: 1rem; font-size: .9rem; color: var(--aco-400); }
.breadcrumb a { color: var(--aco-600); }
.breadcrumb span { margin: 0 .15rem; }

/* ---------- Chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin: 1rem 0 1.5rem; }
.chips-label { color: var(--aco-400); font-size: .9rem; }
.chip { background: var(--aco-100); color: var(--aco-700); padding: .3rem .7rem; border-radius: 99px; text-decoration: none; font-size: .88rem; }
.chip:hover { background: var(--brasa-400); color: #fff; }

/* ---------- Empresa ---------- */
.empresa-layout { display: grid; gap: 2rem; grid-template-columns: 1fr; }
.empresa-meta { color: var(--aco-400); margin-top: .2rem; }
.empresa-desc { font-size: 1.05rem; color: var(--aco-600); }
.empresa-dados { display: grid; grid-template-columns: max-content 1fr; gap: .3rem 1rem; margin-top: 1.2rem; }
.empresa-dados dt { font-weight: 700; color: var(--aco-700); }
.empresa-dados dd { margin: 0; color: var(--aco-600); }
.lead-box { background: var(--branco); border: 1px solid var(--aco-100); border-radius: var(--radius); padding: 1.2rem; box-shadow: var(--shadow); }
.lead-box h2 { margin-top: 0; }
.aside-note { font-size: .9rem; color: var(--aco-400); margin-top: 1rem; }

/* ---------- Formulários ---------- */
.lead-form label, .form-wrap label { display: block; margin-bottom: .8rem; font-weight: 600; color: var(--aco-700); font-size: .92rem; }
.lead-form input, .lead-form textarea, .lead-form select,
.form-wrap input, .form-wrap textarea, .form-wrap select {
  display: block; width: 100%; margin-top: .3rem; padding: .6rem .7rem; font: inherit;
  border: 1px solid var(--aco-200); border-radius: 6px; background: #fff; color: var(--aco-800);
}
.lead-status { font-size: .9rem; color: var(--brasa-600); min-height: 1.2em; margin: .5rem 0 0; }

/* ---------- Ferramentas / calculadoras ---------- */
.calc { background: var(--branco); border: 1px solid var(--aco-100); border-radius: var(--radius); padding: 1.2rem; box-shadow: var(--shadow); margin: 1.2rem 0; }
.calc-tabs { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem; }
.calc-tabs button { border: 1px solid var(--aco-200); background: var(--aco-50); padding: .45rem .8rem; border-radius: 6px; cursor: pointer; font: inherit; }
.calc-tabs button[aria-selected="true"] { background: var(--aco-900); color: #fff; border-color: var(--aco-900); }
.calc-fields { display: grid; gap: .8rem; grid-template-columns: 1fr; margin-bottom: .8rem; }
.calc-form label { display: block; font-weight: 600; font-size: .9rem; color: var(--aco-700); }
.calc-form input { width: 100%; margin-top: .25rem; padding: .55rem .7rem; border: 1px solid var(--aco-200); border-radius: 6px; font: inherit; }
.calc-extra { margin-top: .4rem; }
.calc-result { display: block; margin-top: 1rem; padding: 1rem; background: var(--aco-900); color: #fff; border-radius: 8px; }
.calc-result-main { display: block; font-size: 1.6rem; font-weight: 700; color: var(--brasa-400); }
.calc-result-sub { display: block; font-size: .9rem; color: var(--aco-300); margin-top: .2rem; }

.tabela { width: 100%; border-collapse: collapse; margin-top: .8rem; background: #fff; }
.tabela th, .tabela td { text-align: left; padding: .5rem .7rem; border-bottom: 1px solid var(--aco-100); }
.tabela th { background: var(--aco-50); }

/* ---------- Prose ---------- */
.prose { color: var(--aco-700); }
.prose h2 { margin-top: 1.8rem; }
.prose h3 { margin-top: 1.2rem; }
.prose-cta { margin-top: 2rem; }

/* ---------- Planos (seja parceiro) ---------- */
.planos { display: grid; gap: var(--gap); grid-template-columns: 1fr; margin: 1.5rem 0 2.5rem; }
.plano { background: #fff; border: 1px solid var(--aco-100); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow); }
.plano-destaque { border-color: var(--brasa-400); border-width: 2px; }
.plano h2 { margin: .3rem 0; }
.plano-preco { font-size: 1.8rem; font-weight: 800; color: var(--aco-900); margin: .2rem 0 1rem; }
.plano ul { padding-left: 1.1rem; color: var(--aco-600); margin: 0 0 1.2rem; }
.plano li { margin-bottom: .4rem; }
.card-grid-demo { max-width: 26rem; margin-bottom: 2.5rem; }
.form-wrap { background: #fff; border: 1px solid var(--aco-100); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow); max-width: 34rem; }

/* ---------- Estados vazios / CTA ---------- */
.empty-state { background: #fff; border: 1px dashed var(--aco-200); border-radius: var(--radius); padding: 2rem; text-align: center; }
.empty-state p { color: var(--aco-400); margin-top: 0; }
.silo-cta { margin-top: 2rem; padding: 1.2rem; background: var(--aco-100); border-radius: var(--radius); text-align: center; }
.cta-parceiro { background: linear-gradient(160deg, var(--brasa-600), var(--brasa-500)); color: #fff; padding: 2.5rem 0; text-align: center; }
.cta-parceiro h2 { color: #fff; }
.cta-parceiro .btn-primary { background: #fff; color: var(--brasa-600); margin-top: .6rem; }
.cta-parceiro .btn-primary:hover { background: var(--aco-100); }

/* ---------- Notícias ---------- */
.section-news { background: #fff; }
.news-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
.news-list li { padding: .7rem .9rem; border: 1px solid var(--aco-100); border-radius: 8px; display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.news-list a { text-decoration: none; color: var(--aco-800); font-weight: 600; }
.news-list a:hover { color: var(--brasa-600); }
.news-fonte { font-size: .8rem; color: var(--aco-400); white-space: nowrap; }

/* ---------- Busca ---------- */
.busca-form { display: flex; gap: .6rem; flex-wrap: wrap; margin: 1rem 0; }
.busca-form input { flex: 1; min-width: 14rem; padding: .7rem .9rem; border: 1px solid var(--aco-200); border-radius: 8px; font: inherit; }
.busca-form select { padding: .7rem .9rem; border: 1px solid var(--aco-200); border-radius: 8px; font: inherit; background: #fff; }
.busca-meta { color: var(--aco-400); font-size: .9rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--aco-900); color: var(--aco-200); margin-top: 2rem; padding: 2.5rem 0 1.5rem; }
.footer-grid { display: grid; gap: 1.6rem; grid-template-columns: 1fr; }
.footer-brand { font-weight: 800; font-size: 1.2rem; color: #fff; margin: 0 0 .4rem; }
.footer-brand span { color: var(--aco-400); font-weight: 400; }
.footer-tagline { color: var(--aco-400); font-size: .9rem; max-width: 22rem; }
.site-footer h2 { font-size: .95rem; color: #fff; text-transform: uppercase; letter-spacing: .04em; margin: 0 0 .7rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .4rem; }
.site-footer a { color: var(--aco-200); text-decoration: none; font-size: .92rem; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-legal { border-top: 1px solid var(--aco-700); margin-top: 1.8rem; padding-top: 1.2rem; font-size: .85rem; color: var(--aco-400); }
.disclaimer { color: var(--aco-300); }
.disclaimer strong { color: var(--aco-200); }

/* ---------- Banner LGPD ---------- */
.lgpd-banner {
  position: fixed; left: 1rem; right: 1rem; bottom: 1rem; max-width: 40rem; margin: 0 auto;
  background: var(--aco-900); color: var(--aco-100); padding: 1rem 1.2rem; border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,.35); z-index: 80; display: flex; flex-direction: column; gap: .8rem;
}
.lgpd-banner p { margin: 0; font-size: .9rem; }
.lgpd-banner a { color: var(--brasa-400); }
.lgpd-actions { display: flex; gap: .6rem; justify-content: flex-end; }
.lgpd-actions button { padding: .5rem 1rem; border-radius: 6px; border: 1px solid var(--aco-600); background: transparent; color: var(--aco-100); cursor: pointer; font: inherit; }
.lgpd-actions .btn-primary { border: 0; }

/* ---------- Responsivo ---------- */
@media (min-width: 640px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .tool-grid { grid-template-columns: repeat(3, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .calc-fields { grid-template-columns: repeat(3, 1fr); }
  .planos { grid-template-columns: repeat(2, 1fr); }
  .lgpd-banner { flex-direction: row; align-items: center; }
  .lgpd-banner p { flex: 1; }
}
@media (min-width: 900px) {
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .card-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .empresa-layout { grid-template-columns: 1.7fr 1fr; }
}
@media (max-width: 780px) {
  .nav-toggle { display: flex; }
  .site-nav { display: none; width: 100%; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; align-items: flex-start; padding: .6rem 0; }
  .header-inner { flex-wrap: wrap; }
}