:root {
  --navy: #1E3A8A;
  --emerald: #10B981;
  --gray-900: #111827;
  --gray-700: #374151;
  --gray-500: #6B7280;
  --gray-200: #E5E7EB;
  --gray-100: #F3F4F6;
  --gray-50: #F9FAFB;
  --bg: #FFFFFF;
  --card-bg: #F9FAFB;
  --text: var(--gray-900);
  --danger: #DC2626;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F172A;
    --card-bg: #1E293B;
    --text: #F1F5F9;
    --gray-200: #334155;
    --gray-100: #1E293B;
    --gray-50: #0F172A;
    --gray-500: #94A3B8;
    --gray-700: #CBD5E1;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
a { color: var(--navy); }
@media (prefers-color-scheme: dark) { a { color: #93C5FD; } }
.container { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* Header */
header.topo {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px; max-width: 1040px; margin: 0 auto;
}
header.topo .logo { font-size: 20px; font-weight: 800; color: var(--navy); text-decoration: none; }
@media (prefers-color-scheme: dark) { header.topo .logo { color: #93C5FD; } }
header.topo nav a {
  text-decoration: none; color: var(--text); font-weight: 600; font-size: 14px; margin-left: 20px;
}
header.topo .btn-entrar {
  background: var(--navy); color: #fff !important; padding: 8px 16px; border-radius: 8px;
}

/* Hero */
.hero { text-align: center; padding: 60px 20px 40px; }
.hero h1 { font-size: 34px; font-weight: 800; margin: 0 0 14px; max-width: 720px; margin-left: auto; margin-right: auto; }
.hero p.subtitulo { font-size: 17px; color: var(--gray-500); max-width: 560px; margin: 0 auto 28px; }
.btn-cta {
  display: inline-block; background: var(--emerald); color: #fff; text-decoration: none;
  font-weight: 700; font-size: 16px; padding: 14px 28px; border-radius: 10px;
}
.btn-cta:hover { opacity: 0.92; }

/* Features */
.recursos { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; padding: 40px 20px; }
.recurso { background: var(--card-bg); border-radius: 14px; padding: 22px; }
.recurso .icone { font-size: 28px; margin-bottom: 10px; }
.recurso h3 { margin: 0 0 6px; font-size: 16px; }
.recurso p { margin: 0; font-size: 13.5px; color: var(--gray-500); }

/* Planos */
.secao-titulo { text-align: center; padding: 20px 20px 8px; }
.secao-titulo h2 { font-size: 26px; margin: 0 0 8px; }
.secao-titulo p { color: var(--gray-500); margin: 0; }
.planos-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; padding: 30px 20px 50px; max-width: 1040px; margin: 0 auto; }
.plano-card { background: var(--card-bg); border-radius: 16px; padding: 26px; text-align: center; border: 2px solid transparent; }
.plano-card.destaque { border-color: var(--emerald); }
.plano-card h3 { margin: 0 0 6px; font-size: 18px; }
.plano-card .preco { font-size: 30px; font-weight: 800; margin: 10px 0; }
.plano-card .preco small { font-size: 14px; font-weight: 500; color: var(--gray-500); }
.plano-card ul { list-style: none; padding: 0; margin: 16px 0; font-size: 13.5px; color: var(--gray-700); text-align: left; }
.plano-card li { padding: 5px 0; }
.plano-card li::before { content: "✓ "; color: var(--emerald); font-weight: 700; }

/* FAQ */
.faq { max-width: 720px; margin: 0 auto; padding: 20px 20px 60px; }
.faq details { background: var(--card-bg); border-radius: 10px; padding: 14px 18px; margin-bottom: 10px; }
.faq summary { font-weight: 600; cursor: pointer; }
.faq p { color: var(--gray-500); font-size: 14px; margin: 10px 0 0; }

/* Footer */
footer.rodape { text-align: center; padding: 30px 20px; color: var(--gray-500); font-size: 13px; border-top: 1px solid var(--gray-200); }

/* Formulários (checkout/admin/login) */
.card-central { max-width: 440px; margin: 60px auto; background: var(--card-bg); border-radius: 16px; padding: 32px; }
.card-central h1 { font-size: 20px; margin: 0 0 6px; }
.card-central p.sub { color: var(--gray-500); font-size: 14px; margin: 0 0 20px; }
label { display: block; font-size: 13px; color: var(--gray-500); margin: 14px 0 6px; }
input[type="text"], input[type="email"], input[type="password"], select {
  width: 100%; padding: 12px; border-radius: 10px; border: 1px solid var(--gray-200);
  background: var(--gray-50); color: var(--text); font-size: 15px;
}
.btn-primario {
  width: 100%; padding: 13px; border-radius: 10px; border: none; margin-top: 20px;
  background: var(--emerald); color: #fff; font-size: 15px; font-weight: 700; cursor: pointer;
}
.erro-msg { color: var(--danger); font-size: 13px; margin-top: 10px; }
.msg-sucesso { color: var(--emerald); font-size: 13px; margin: 10px 0; }
.linha-resumo { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--gray-200); font-size: 14px; }
.linha-resumo:last-of-type { border-bottom: none; }
.linha-resumo .label { color: var(--gray-500); }

/* Admin */
.admin-header { display: flex; justify-content: space-between; align-items: center; padding: 18px 24px; border-bottom: 1px solid var(--gray-200); }
.admin-header h1 { font-size: 18px; margin: 0; }
.admin-content { max-width: 1100px; margin: 0 auto; padding: 24px; }
.resumo-cards { display: flex; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.resumo-card { background: var(--card-bg); border-radius: 12px; padding: 16px 20px; flex: 1; min-width: 140px; }
.resumo-card .valor { font-size: 26px; font-weight: 800; }
.resumo-card .rotulo { font-size: 12.5px; color: var(--gray-500); }
table { width: 100%; border-collapse: collapse; background: var(--card-bg); border-radius: 12px; overflow: hidden; }
th, td { text-align: left; padding: 10px 14px; font-size: 13.5px; border-bottom: 1px solid var(--gray-200); }
th { color: var(--gray-500); font-weight: 600; font-size: 12px; text-transform: uppercase; }
tr:last-child td { border-bottom: none; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.ativa { background: rgba(16,185,129,0.15); color: var(--emerald); }
.badge.cancelada, .badge.inadimplente { background: rgba(220,38,38,0.12); color: var(--danger); }
.link-voltar { font-size: 13px; text-decoration: none; color: var(--gray-500); }
.btn-logout { background: none; border: 1px solid var(--gray-200); color: var(--text); padding: 6px 14px; border-radius: 8px; cursor: pointer; font-size: 13px; }