:root {
  --fundo: #ffffff;
  --fundo-2: #f4f6fb;
  --texto: #0f172a;
  --suave: #5b6478;
  --borda: #e3e7f0;
  --primaria: #3b5bfd;
  --primaria-2: #7c3aed;
  --ok: #10b981;
  --perigo: #ef4444;
  --cartao: #ffffff;
  --sombra: 0 10px 30px -12px rgba(15, 23, 42, .18);
  --raio: 16px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --fundo: #0b1020; --fundo-2: #10172b; --texto: #e8ecf6; --suave: #9aa4bd; --borda: #222b45;
    --cartao: #131b33; --primaria: #6b83ff; --primaria-2: #a78bfa; --sombra: 0 10px 30px -12px rgba(0, 0, 0, .6);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --fundo: #0b1020; --fundo-2: #10172b; --texto: #e8ecf6; --suave: #9aa4bd; --borda: #222b45;
  --cartao: #131b33; --primaria: #6b83ff; --primaria-2: #a78bfa; --sombra: 0 10px 30px -12px rgba(0, 0, 0, .6);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--fundo); color: var(--texto); font: 16px/1.6 Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: var(--primaria); }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .6rem; }
h2 { font-size: clamp(1.7rem, 4vw, 2.5rem); }
.largura { width: min(1160px, 100% - 32px); margin: 0 auto; }
.estreito { width: min(780px, 100% - 32px); }
.sub { color: var(--suave); font-size: 1.1rem; margin: 0 0 2rem; max-width: 60ch; }
.pular { position: absolute; left: -9999px; }
.pular:focus { left: 16px; top: 16px; z-index: 99; background: var(--cartao); padding: .5rem 1rem; }

/* Botões */
.botao { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; padding: .7rem 1.2rem; border-radius: 12px; border: 1px solid var(--borda);
  background: var(--cartao); color: var(--texto); text-decoration: none; font-weight: 600; cursor: pointer; font: inherit; font-weight: 600; transition: transform .15s, box-shadow .2s; }
.botao:hover { transform: translateY(-2px); box-shadow: var(--sombra); }
.botao.primario { border: 0; color: #fff; background: linear-gradient(135deg, var(--primaria), var(--primaria-2)); box-shadow: 0 8px 24px -10px var(--primaria); }
.botao.grande { padding: .95rem 1.5rem; font-size: 1.05rem; }
:focus-visible { outline: 3px solid var(--primaria); outline-offset: 2px; }

/* Topo */
.topo { position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(1.5) blur(12px); background: color-mix(in srgb, var(--fundo) 80%, transparent); border-bottom: 1px solid transparent; transition: border-color .2s; }
.topo.rolou { border-color: var(--borda); }
.topo-linha { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.marca { font-weight: 800; font-size: 1.2rem; color: var(--texto); text-decoration: none; }
.marca span { font-weight: 400; color: var(--suave); margin-left: .3rem; }
#menu { display: flex; align-items: center; gap: 1.4rem; }
#menu a:not(.botao) { color: var(--texto); text-decoration: none; font-weight: 500; }
#menu a:not(.botao):hover { color: var(--primaria); }
.menu-botao { display: none; background: none; border: 0; font-size: 1.6rem; color: var(--texto); cursor: pointer; }

/* Hero */
.hero { position: relative; padding: 4.5rem 0 5rem; overflow: hidden; }
.brilho { position: absolute; inset: -30% -10% auto; height: 120%; pointer-events: none;
  background: radial-gradient(40% 40% at 20% 30%, color-mix(in srgb, var(--primaria) 28%, transparent), transparent 70%),
              radial-gradient(35% 35% at 80% 20%, color-mix(in srgb, var(--primaria-2) 26%, transparent), transparent 70%);
  animation: flutuar 14s ease-in-out infinite alternate; }
@keyframes flutuar { to { transform: translate3d(0, 4%, 0) scale(1.05); } }
.hero-grade { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 3rem; align-items: center; }
.selo { display: inline-block; font-size: .85rem; font-weight: 600; color: var(--primaria); background: color-mix(in srgb, var(--primaria) 12%, transparent);
  padding: .35rem .8rem; border-radius: 99px; margin-bottom: 1.2rem; }
.hero h1 { font-size: clamp(2.2rem, 5.2vw, 3.7rem); font-weight: 800; }
.grad { background: linear-gradient(135deg, var(--primaria), var(--primaria-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { font-size: 1.15rem; color: var(--suave); max-width: 52ch; }
.acoes { display: flex; gap: .8rem; flex-wrap: wrap; margin: 1.8rem 0 1.2rem; }
.garantias { list-style: none; padding: 0; margin: 0; display: flex; gap: 1.2rem; flex-wrap: wrap; color: var(--suave); font-size: .95rem; }
.garantias li::before { content: '✓'; color: var(--ok); font-weight: 800; margin-right: .4rem; }
.garantias.vertical { flex-direction: column; gap: .5rem; margin-top: 1rem; }
.hero-tela { position: relative; perspective: 1400px; }
.janela { background: var(--cartao); border: 1px solid var(--borda); border-radius: 14px; box-shadow: 0 40px 80px -30px rgba(15, 23, 42, .45);
  overflow: hidden; transform: rotateY(-8deg) rotateX(4deg); transition: transform .6s; }
.hero-tela:hover .janela { transform: none; }
.janela-barra { display: flex; align-items: center; gap: .4rem; padding: .6rem .8rem; border-bottom: 1px solid var(--borda); background: var(--fundo-2); }
.janela-barra i { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; }
.janela-barra i:nth-child(2) { background: #febc2e; }
.janela-barra i:nth-child(3) { background: #28c840; }
.janela-barra span { margin-left: .6rem; font-size: .75rem; color: var(--suave); background: var(--fundo); padding: .15rem .7rem; border-radius: 6px; }
.janela-telas { position: relative; aspect-ratio: 1366 / 820; }
.janela-telas img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left; opacity: 0; transition: opacity .8s; }
.janela-telas img.ativa { opacity: 1; }
.flutuante { position: absolute; background: var(--cartao); border: 1px solid var(--borda); border-radius: 12px; padding: .6rem .9rem; box-shadow: var(--sombra);
  display: flex; flex-direction: column; font-size: .85rem; animation: boia 5s ease-in-out infinite; }
.flutuante strong { font-size: .9rem; }
.flutuante strong::before { content: '●'; color: var(--ok); margin-right: .35rem; }
.flutuante span { color: var(--suave); }
.f1 { left: -24px; bottom: 18%; }
.f2 { right: -16px; top: 12%; animation-delay: -2.5s; }
@keyframes boia { 50% { transform: translateY(-10px); } }

/* Números */
.faixa-numeros { border-block: 1px solid var(--borda); background: var(--fundo-2); }
.numeros { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; padding: 1.8rem 0; text-align: center; }
.numeros strong { display: block; font-size: 2.2rem; font-weight: 800; }
.numeros span { color: var(--suave); font-size: .92rem; }

/* Seções */
.secao { padding: 5.5rem 0; }
.alternada { background: var(--fundo-2); }
.sistemas { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.4rem; }
.sistema { background: var(--cartao); border: 1px solid var(--borda); border-radius: var(--raio); overflow: hidden; display: flex; flex-direction: column;
  transition: transform .25s, box-shadow .25s; }
.sistema:hover { transform: translateY(-6px); box-shadow: var(--sombra); }
.sistema figure { margin: 0; aspect-ratio: 16 / 10; overflow: hidden; border-bottom: 1px solid var(--borda); }
.sistema img { width: 100%; height: 100%; object-fit: cover; object-position: top left; transition: transform .6s; }
.sistema:hover img { transform: scale(1.04); }
.sistema .corpo { padding: 1.2rem 1.3rem 1.4rem; display: flex; flex-direction: column; gap: .6rem; flex: 1; }
.sistema h3 { font-size: 1.2rem; margin: 0; }
.sistema p { color: var(--suave); margin: 0; }
.etiquetas { display: flex; flex-wrap: wrap; gap: .35rem; }
.etiquetas span { font-size: .78rem; padding: .2rem .6rem; border-radius: 99px; background: var(--fundo-2); border: 1px solid var(--borda); }
.sistema .acoes { margin: auto 0 0; padding-top: .6rem; }

.passos { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.passos li { background: var(--cartao); border: 1px solid var(--borda); border-radius: var(--raio); padding: 1.6rem; display: flex; flex-direction: column; gap: .4rem; }
.passos b { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 12px; color: #fff; background: linear-gradient(135deg, var(--primaria), var(--primaria-2)); }
.passos span { color: var(--suave); }

.comparacao { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; margin-top: 2rem; }
.lado { border-radius: var(--raio); padding: 1.6rem; border: 1px solid var(--borda); }
.lado ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .7rem; }
.antes { background: var(--fundo-2); }
.antes li::before { content: '✕'; color: var(--perigo); font-weight: 800; margin-right: .6rem; }
.depois { background: linear-gradient(160deg, color-mix(in srgb, var(--primaria) 10%, var(--cartao)), var(--cartao)); border-color: color-mix(in srgb, var(--primaria) 40%, var(--borda)); }
.depois li::before { content: '✓'; color: var(--ok); font-weight: 800; margin-right: .6rem; }

/* Calculadora */
.calculadora { display: grid; grid-template-columns: 1.2fr 1fr; gap: 2.5rem; align-items: center; }
.campo { display: flex; flex-direction: column; gap: .35rem; font-weight: 500; margin-bottom: 1.2rem; }
.campo output { font-weight: 800; color: var(--primaria); }
input[type=range] { accent-color: var(--primaria); width: 100%; }
.resultado-calc { background: var(--cartao); border: 1px solid var(--borda); border-radius: var(--raio); padding: 2rem; box-shadow: var(--sombra); display: flex; flex-direction: column; gap: .2rem; }
.resultado-calc span { color: var(--suave); }
.resultado-calc strong { font-size: 2.6rem; font-weight: 800; color: var(--perigo); margin-bottom: .6rem; }
.resultado-calc strong.menor { font-size: 2rem; color: var(--ok); }
.resultado-calc p { margin: .3rem 0 0; font-weight: 600; }

/* Preços */
.alternador { display: inline-flex; background: var(--fundo-2); border: 1px solid var(--borda); border-radius: 99px; padding: .25rem; margin: 1rem 0 2rem; }
.alternador button { border: 0; background: none; color: var(--texto); font: inherit; font-weight: 600; padding: .5rem 1.2rem; border-radius: 99px; cursor: pointer; }
.alternador button.ativo { background: var(--cartao); box-shadow: var(--sombra); }
.alternador em { font-style: normal; font-size: .75rem; color: var(--ok); margin-left: .3rem; }
.planos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; align-items: stretch; }
.plano { background: var(--cartao); border: 1px solid var(--borda); border-radius: var(--raio); padding: 1.8rem; display: flex; flex-direction: column; gap: .8rem; position: relative; }
.plano.destaque { border: 2px solid var(--primaria); box-shadow: var(--sombra); transform: translateY(-8px); }
.plano .fita { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, var(--primaria), var(--primaria-2)); color: #fff;
  font-size: .75rem; font-weight: 700; padding: .25rem .8rem; border-radius: 99px; white-space: nowrap; }
.plano .preco { font-size: 2.3rem; font-weight: 800; }
.plano .preco small { font-size: .95rem; font-weight: 500; color: var(--suave); }
.plano .equivale { color: var(--suave); font-size: .85rem; margin-top: -.6rem; min-height: 1.3em; }
.plano ul { list-style: none; padding: 0; margin: 0 0 .6rem; display: flex; flex-direction: column; gap: .5rem; flex: 1; }
.plano li::before { content: '✓'; color: var(--ok); font-weight: 800; margin-right: .5rem; }
.simulador { margin-top: 3rem; background: var(--fundo-2); border: 1px solid var(--borda); border-radius: var(--raio); padding: 1.8rem; }
.simulador-grade { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 1.4rem; align-items: start; }
fieldset { border: 0; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .45rem; }
legend { font-weight: 700; margin-bottom: .5rem; }
fieldset label { display: flex; gap: .5rem; align-items: center; cursor: pointer; }
input[type=checkbox] { accent-color: var(--primaria); width: 18px; height: 18px; }
select, input:not([type=range]):not([type=checkbox]), textarea { font: inherit; color: var(--texto); background: var(--cartao); border: 1px solid var(--borda); border-radius: 10px; padding: .7rem .85rem; width: 100%; }
.sim-total { background: var(--cartao); border: 1px solid var(--borda); border-radius: var(--raio); padding: 1.3rem; display: flex; flex-direction: column; gap: .4rem; }
.sim-total span { color: var(--suave); font-size: .92rem; }
.sim-total strong { font-size: 2rem; font-weight: 800; }

/* Segurança */
.cartoes-seguranca { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; margin-top: 2rem; }
.cartoes-seguranca > div { background: var(--cartao); border: 1px solid var(--borda); border-radius: var(--raio); padding: 1.4rem; display: flex; flex-direction: column; gap: .35rem; }
.cartoes-seguranca i { font-style: normal; font-size: 1.6rem; }
.cartoes-seguranca span { color: var(--suave); }

.sob-medida { display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; padding: 2.5rem; border-radius: 24px; color: #fff;
  background: linear-gradient(135deg, var(--primaria), var(--primaria-2)); }
.sob-medida p { max-width: 60ch; opacity: .92; margin: 0; }
.sob-medida .botao.primario { background: #fff; color: var(--primaria); }

details { background: var(--cartao); border: 1px solid var(--borda); border-radius: 12px; padding: 1rem 1.2rem; margin-bottom: .7rem; }
summary { font-weight: 600; cursor: pointer; }
details p { color: var(--suave); margin: .6rem 0 0; }
.mais-ajuda { text-align: center; color: var(--suave); }

/* Orçamento */
.orcamento { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem; align-items: start; }
.orcamento p { color: var(--suave); font-size: 1.1rem; }
.cartao-form { background: var(--cartao); border: 1px solid var(--borda); border-radius: 20px; padding: 2rem; box-shadow: var(--sombra); }
.dupla { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.isca { position: absolute; left: -9999px; width: 1px; height: 1px; }
.retorno { min-height: 1.4em; font-weight: 600; margin: .8rem 0 0; }
.retorno.ok { color: var(--ok); }
.retorno.erro { color: var(--perigo); }

/* Rodapé */
.rodape { border-top: 1px solid var(--borda); padding: 3rem 0 1.5rem; background: var(--fundo-2); }
.rodape-grade { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.rodape p { color: var(--suave); }
.rodape nav { display: flex; flex-wrap: wrap; gap: 1.2rem; align-items: center; }
.rodape nav a { color: var(--texto); text-decoration: none; }
.copyright { font-size: .85rem; margin-top: 2rem; }

.zap-flutuante { position: fixed; right: 18px; bottom: 18px; width: 58px; height: 58px; border-radius: 50%; background: #25d366; color: #fff; display: grid; place-items: center;
  box-shadow: 0 10px 25px -8px rgba(37, 211, 102, .7); z-index: 30; transition: transform .2s; }
.zap-flutuante:hover { transform: scale(1.08); }
.zap-flutuante svg { width: 32px; height: 32px; }

/* Aparecer ao rolar */
.revelar { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.revelar.visivel { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .revelar { opacity: 1; transform: none; }
}

/* Celular */
@media (max-width: 900px) {
  .hero-grade, .calculadora, .orcamento { grid-template-columns: 1fr; }
  .hero { padding-top: 2.5rem; }
  .hero-tela { margin: 1rem 8px 0; }
  .janela { transform: none; }
  .f1 { left: -6px; } .f2 { right: -6px; }
  .numeros { grid-template-columns: repeat(2, 1fr); }
  .passos, .comparacao, .planos, .cartoes-seguranca, .simulador-grade { grid-template-columns: 1fr; }
  .plano.destaque { transform: none; }
  .menu-botao { display: block; }
  #menu { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; padding: .5rem 16px 1rem;
    background: var(--fundo); border-bottom: 1px solid var(--borda); }
  #menu.aberto { display: flex; }
  #menu a { padding: .8rem 0; }
  .secao { padding: 3.5rem 0; }
  .dupla { grid-template-columns: 1fr; }
  .sistemas { grid-template-columns: 1fr; }
}
.zap-flutuante[hidden] { display: none; }