/* ============================================================
   estilo.css — Central de Ajuda Vinnit Console Center
   Identidade visual herdada de /planos (dark tech/SaaS)
   Layout próprio: sidebar + breadcrumb + leitura de artigo
   ============================================================ */

:root {
  --brand-dark: #0B0F19;
  --brand-card: #151B2C;
  --brand-border: #232B3D;
  --brand-accent: #00F0FF;
  --brand-purple: #8A2BE2;
  --brand-text: #E6E9F0;
  --brand-text-muted: #8B93A7;

  --sidebar-width: 280px;
  --header-height: 68px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--brand-dark);
  color: var(--brand-text);
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 400;
  scroll-behavior: smooth;
}

a { color: inherit; text-decoration: none; }

/* ---------------- HEADER ---------------- */
.ca-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: rgba(11, 15, 25, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--brand-border);
}

.ca-header .ca-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

.ca-header .ca-logo img { height: 28px; }

.ca-header nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.9rem;
  color: var(--brand-text-muted);
}

.ca-header nav a:hover,
.ca-header nav a.ativo {
  color: var(--brand-accent);
}

.ca-header .ca-cta {
  background: linear-gradient(90deg, var(--brand-accent), var(--brand-purple));
  color: #0B0F19;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
}

/* ---------------- LAYOUT ---------------- */
.ca-layout {
  display: flex;
  align-items: flex-start;
  max-width: 1280px;
  margin: 0 auto;
  min-height: calc(100vh - var(--header-height));
}

/* ---------------- SIDEBAR ---------------- */
.ca-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  padding: 28px 16px 60px;
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  border-right: 1px solid var(--brand-border);
}

.ca-sidebar .ca-busca {
  width: 100%;
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: 8px;
  padding: 9px 12px;
  color: var(--brand-text);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.ca-sidebar .ca-busca::placeholder { color: var(--brand-text-muted); }

.ca-sidebar .ca-categoria {
  margin-bottom: 22px;
}

.ca-sidebar .ca-categoria-titulo {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-text-muted);
  margin: 0 0 8px 8px;
  font-weight: 600;
}

.ca-sidebar ul { list-style: none; margin: 0; padding: 0; }

.ca-sidebar li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 8px;
  border-radius: 6px;
  font-size: 0.87rem;
  color: var(--brand-text-muted);
  border-left: 2px solid transparent;
}

.ca-sidebar li a i { width: 16px; text-align: center; font-size: 0.8rem; }

.ca-sidebar li a:hover {
  color: var(--brand-text);
  background: rgba(255, 255, 255, 0.03);
}

.ca-sidebar li a.ativo {
  color: var(--brand-accent);
  background: rgba(0, 240, 255, 0.06);
  border-left-color: var(--brand-accent);
  font-weight: 600;
}

/* ---------------- CONTEÚDO / ARTIGO ---------------- */
.ca-conteudo {
  flex: 1;
  min-width: 0;
  padding: 32px 40px 80px;
}

.ca-breadcrumb {
  font-size: 0.82rem;
  color: var(--brand-text-muted);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.ca-breadcrumb a:hover { color: var(--brand-accent); }
.ca-breadcrumb .ca-separador { opacity: 0.5; }
.ca-breadcrumb .ca-atual { color: var(--brand-text); }

.ca-artigo { max-width: 760px; }

.ca-artigo h1 {
  font-size: 1.9rem;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.25;
}

.ca-artigo .ca-subtitulo {
  color: var(--brand-text-muted);
  font-size: 1rem;
  margin-bottom: 32px;
}

.ca-artigo h2 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 36px 0 14px;
  padding-top: 8px;
  border-top: 1px solid var(--brand-border);
}

.ca-artigo h2:first-of-type { border-top: none; padding-top: 0; }

.ca-artigo h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 24px 0 10px;
  color: var(--brand-accent);
}

.ca-artigo p {
  font-size: 0.96rem;
  line-height: 1.75;
  color: var(--brand-text);
  margin: 0 0 16px;
}

.ca-artigo ul, .ca-artigo ol {
  margin: 0 0 16px;
  padding-left: 22px;
  line-height: 1.75;
  font-size: 0.96rem;
}

.ca-artigo li { margin-bottom: 6px; }

.ca-artigo code {
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 0.85em;
  font-family: 'SFMono-Regular', Consolas, monospace;
  color: var(--brand-accent);
}

.ca-artigo pre {
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: 10px;
  padding: 16px;
  overflow-x: auto;
  margin: 0 0 20px;
}

.ca-artigo pre code { background: none; border: none; padding: 0; color: var(--brand-text); }

.ca-artigo img {
  max-width: 100%;
  border-radius: 10px;
  border: 1px solid var(--brand-border);
  margin: 8px 0 20px;
}

/* Callouts (dica, atenção, aviso) */
.ca-callout {
  border: 1px solid var(--brand-border);
  border-left-width: 3px;
  border-radius: 8px;
  padding: 14px 16px;
  margin: 0 0 20px;
  font-size: 0.9rem;
  background: var(--brand-card);
}

.ca-callout.ca-dica { border-left-color: var(--brand-accent); }
.ca-callout.ca-atencao { border-left-color: #F5A524; }
.ca-callout.ca-erro { border-left-color: #F31260; }

.ca-callout .ca-callout-titulo {
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

/* Navegação entre artigos (anterior / próximo) */
.ca-artigo-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--brand-border);
}

.ca-artigo-nav a {
  flex: 1;
  border: 1px solid var(--brand-border);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--brand-text-muted);
}

.ca-artigo-nav a:hover { border-color: var(--brand-accent); color: var(--brand-text); }
.ca-artigo-nav .ca-nav-proximo { text-align: right; }
.ca-artigo-nav .ca-nav-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
  opacity: 0.7;
}

/* ---------------- FOOTER ---------------- */
.ca-footer {
  border-top: 1px solid var(--brand-border);
  padding: 28px 40px;
  text-align: center;
  color: var(--brand-text-muted);
  font-size: 0.8rem;
}

.ca-footer a:hover { color: var(--brand-accent); }

/* ---------------- HOME: HERO ---------------- */
.ca-home-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}

.ca-home-hero {
  text-align: center;
  margin-bottom: 56px;
}

.ca-home-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-accent);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.25);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.ca-home-hero h1 {
  font-size: 2.4rem;
  font-weight: 700;
  margin: 0 0 12px;
  line-height: 1.2;
}

.ca-home-hero p {
  color: var(--brand-text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 32px;
}

.ca-home-busca-wrap {
  position: relative;
  max-width: 520px;
  margin: 0 auto;
}

.ca-home-busca-wrap i {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--brand-text-muted);
}

.ca-home-busca {
  width: 100%;
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: 10px;
  padding: 13px 16px 13px 42px;
  color: var(--brand-text);
  font-size: 0.95rem;
}

.ca-home-busca:focus {
  border-color: var(--brand-accent);
  outline: none;
}

.ca-home-busca::placeholder { color: var(--brand-text-muted); }

/* ---------------- HOME: GRADE DE CATEGORIAS ---------------- */
.ca-home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.ca-home-card {
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: 14px;
  padding: 22px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.ca-home-card:hover {
  border-color: var(--brand-accent);
  transform: translateY(-2px);
}

.ca-home-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.ca-home-card-icone {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand-accent), var(--brand-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0B0F19;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.ca-home-card-header h2 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
}

.ca-home-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ca-home-card li { margin-bottom: 2px; }

.ca-home-card li a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 4px;
  border-radius: 6px;
  font-size: 0.88rem;
  color: var(--brand-text-muted);
}

.ca-home-card li a:hover {
  color: var(--brand-accent);
  background: rgba(255, 255, 255, 0.03);
}

.ca-home-card li a i { font-size: 0.72rem; width: 14px; text-align: center; }

.ca-home-vazio {
  text-align: center;
  color: var(--brand-text-muted);
  padding: 40px 0;
  font-size: 0.9rem;
  display: none;
}

/* ---------------- COMPONENTES DE ARTIGO: PASSOS E FIGURAS ---------------- */
.ca-step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.ca-step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-accent), var(--brand-purple));
  color: #0B0F19;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ca-step-texto { padding-top: 3px; font-size: 0.96rem; line-height: 1.6; }

.ca-figura { margin: 0 0 24px; }
.ca-figura img { margin-bottom: 8px; }
.ca-figura figcaption {
  text-align: center;
  font-size: 0.82rem;
  color: var(--brand-text-muted);
  font-style: italic;
}

.ca-video-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--brand-border);
  margin: 0 0 28px;
}

.ca-video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}

/* ---------------- TABELAS ---------------- */
.ca-artigo table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 24px;
  font-size: 0.88rem;
}

.ca-artigo thead th {
  text-align: left;
  padding: 10px 12px;
  background: var(--brand-card);
  border-bottom: 2px solid var(--brand-border);
  color: var(--brand-text);
  font-weight: 600;
}

.ca-artigo tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--brand-border);
  color: var(--brand-text-muted);
}

.ca-artigo tbody td:first-child {
  color: var(--brand-text);
  font-weight: 600;
}

.ca-artigo tbody tr:hover td { background: rgba(255, 255, 255, 0.02); }

/* ---------------- RESPONSIVO ---------------- */
.ca-sidebar-toggle { display: none; }

@media (max-width: 900px) {
  .ca-layout { flex-direction: column; }

  .ca-sidebar-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--brand-card);
    border: 1px solid var(--brand-border);
    color: var(--brand-text);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin: 16px 16px 0;
  }

  .ca-sidebar {
    position: static;
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--brand-border);
    display: none;
  }

  .ca-sidebar.ca-sidebar-aberta { display: block; }

  .ca-conteudo { padding: 24px 20px 60px; }
}

/* Acessibilidade: foco visível */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
}

/* Respeita prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}