/* =========================================================
   North Sites — Folha de estilo principal
   Organização:
   1. Variáveis (design system)
   2. Reset e base
   3. Componentes (botões, cards, seções)
   4. Layout das seções
   5. Animações
   6. Responsividade
   ========================================================= */

/* ---------- 1. VARIÁVEIS / DESIGN SYSTEM ---------- */
:root {
  --azul: #0b63ff;          /* azul principal da marca */
  --azul-claro: #4d93ff;
  --azul-escuro: #0a3fa8;
  --navy: #0a1024;          /* fundo escuro */
  --navy-2: #0f1730;        /* superfícies escuras */
  --navy-3: #16203f;
  --branco: #ffffff;
  --texto: #e8ecf6;
  --texto-suave: #9fb0d0;
  --borda: rgba(255, 255, 255, 0.09);

  --grad-azul: linear-gradient(135deg, #0b63ff 0%, #4d93ff 60%, #22d3ee 120%);
  --grad-escuro: linear-gradient(160deg, #0a1024 0%, #101a38 55%, #0a1024 100%);
  --grad-texto: linear-gradient(100deg, #ffffff 0%, #9cc4ff 55%, #4d93ff 100%);

  --sombra: 0 18px 40px -18px rgba(0, 0, 0, 0.65);
  --sombra-azul: 0 20px 45px -18px rgba(11, 99, 255, 0.65);

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --max: 1180px;
  --transicao: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 2. RESET E BASE ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--navy);
  color: var(--texto);
  line-height: 1.65;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; color: var(--branco); font-weight: 800; }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
h3 { font-size: clamp(1.05rem, 2vw, 1.3rem); }
p { color: var(--texto-suave); }

/* Acessibilidade: foco visível para navegação por teclado */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--azul-claro);
  outline-offset: 3px;
  border-radius: 6px;
}

/* Link "pular para o conteúdo" (leitores de tela / teclado) */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--azul); color: #fff; padding: 12px 18px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ---------- 3. COMPONENTES ---------- */
/* Botões */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 28px; border-radius: 999px; font-weight: 700; font-size: 1rem;
  border: 1px solid transparent; cursor: pointer; transition: var(--transicao);
  min-height: 48px; /* área de toque acessível */
}
.btn-primario { background: var(--grad-azul); color: #fff; box-shadow: var(--sombra-azul); }
.btn-primario:hover { transform: translateY(-3px); filter: brightness(1.08); }
.btn-secundario { background: rgba(255, 255, 255, 0.05); color: var(--branco); border-color: var(--borda); }
.btn-secundario:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-3px); }
.btn-whats { background: linear-gradient(135deg, #25d366, #12a150); color: #04240f; box-shadow: 0 18px 40px -18px rgba(37, 211, 102, 0.7); }
.btn-whats:hover { transform: translateY(-3px); filter: brightness(1.06); }
.btn-lg { padding: 18px 38px; font-size: 1.08rem; }
.btn-bloco { width: 100%; }

/* Etiqueta / badge */
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px; font-size: 0.82rem; font-weight: 600;
  background: rgba(11, 99, 255, 0.12); border: 1px solid rgba(77, 147, 255, 0.35);
  color: var(--azul-claro); text-transform: uppercase; letter-spacing: 0.08em;
}

/* Cabeçalho das seções */
.sec { padding: 96px 0; position: relative; }
.sec-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.sec-head p { margin-top: 14px; font-size: 1.05rem; }
.grad-texto { background: var(--grad-texto); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Cards genéricos */
.card {
  background: linear-gradient(160deg, rgba(255,255,255,0.055), rgba(255,255,255,0.02));
  border: 1px solid var(--borda); border-radius: var(--r-lg);
  padding: 30px; transition: var(--transicao); box-shadow: var(--sombra);
}
.card:hover { transform: translateY(-6px); border-color: rgba(77,147,255,0.45); box-shadow: var(--sombra-azul); }

.icone {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--grad-azul); color: #fff; margin-bottom: 18px; box-shadow: var(--sombra-azul);
}
.icone svg { width: 26px; height: 26px; }

/* ---------- 4. LAYOUT DAS SEÇÕES ---------- */
/* Header fixo */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: var(--transicao); padding: 14px 0;
  background: rgba(10, 16, 36, 0.55); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
}
.header.rolado { background: rgba(10, 16, 36, 0.92); border-bottom-color: var(--borda); padding: 8px 0; }
.header .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.logo img { height: 40px; width: auto; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { font-size: 0.95rem; font-weight: 600; color: var(--texto); transition: var(--transicao); }
.nav a:hover { color: var(--azul-claro); }
.header-cta { display: flex; gap: 10px; align-items: center; }
.menu-btn { display: none; background: none; border: 1px solid var(--borda); color: #fff; border-radius: 10px; padding: 10px; cursor: pointer; }

/* Hero */
.hero {
  position: relative; padding: 150px 0 90px; background: var(--grad-escuro); overflow: hidden;
}
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5; pointer-events: none;
}
.hero::before { width: 520px; height: 520px; background: rgba(11, 99, 255, 0.45); top: -160px; right: -120px; }
.hero::after { width: 420px; height: 420px; background: rgba(34, 211, 238, 0.18); bottom: -200px; left: -140px; }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.hero h1 { margin: 20px 0 18px; }
.hero p.lead { font-size: 1.12rem; max-width: 560px; }
.hero-botoes { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-provas { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 34px; font-size: 0.9rem; color: var(--texto-suave); }
.hero-provas span { display: flex; align-items: center; gap: 8px; }
.hero-img { position: relative; }
.hero-img img { border-radius: var(--r-lg); box-shadow: 0 40px 80px -30px rgba(0,0,0,0.8); animation: flutuar 6s ease-in-out infinite; }

/* Faixa de benefícios rápidos */
.faixa { background: var(--navy-2); border-top: 1px solid var(--borda); border-bottom: 1px solid var(--borda); padding: 22px 0; }
.faixa ul { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 40px; font-weight: 600; font-size: 0.92rem; color: var(--texto-suave); }
.faixa li { display: flex; align-items: center; gap: 9px; }

/* Grades */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }

/* Planos */
.planos { background: var(--navy-2); }
.plano { position: relative; display: flex; flex-direction: column; }
.plano.destaque { border-color: rgba(77,147,255,0.55); background: linear-gradient(165deg, rgba(11,99,255,0.16), rgba(255,255,255,0.02)); }
.plano .fita {
  position: absolute; top: -14px; right: 24px; background: var(--grad-azul); color: #fff;
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 6px 14px; border-radius: 999px; box-shadow: var(--sombra-azul);
}
.preco { display: flex; align-items: baseline; gap: 8px; margin: 18px 0 4px; }
.preco strong { font-size: 2.4rem; color: #fff; letter-spacing: -0.03em; }
.mensal { font-size: 0.95rem; color: var(--azul-claro); font-weight: 600; }
.lista-check { margin: 22px 0; display: grid; gap: 11px; }
.lista-check li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.97rem; color: var(--texto); }
.lista-check svg { flex: none; width: 20px; height: 20px; color: #22d3ee; margin-top: 3px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.tags span { font-size: 0.8rem; padding: 5px 12px; border-radius: 999px; background: rgba(255,255,255,0.06); border: 1px solid var(--borda); color: var(--texto-suave); }
.bloco-estrutura { margin-top: 18px; padding-top: 18px; border-top: 1px dashed var(--borda); }
.bloco-estrutura h4 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--texto-suave); margin-bottom: 12px; }
.plano .btn { margin-top: auto; }

/* Como funciona */
.passo { position: relative; }
.passo .num {
  font-size: 2.6rem; font-weight: 900; line-height: 1;
  background: var(--grad-azul); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.passo h3 { margin: 10px 0 8px; }

/* Portfólio */
.port-item { overflow: hidden; padding: 0; }
.port-item img { transition: transform 0.5s ease; }
.port-item:hover img { transform: scale(1.06); }
.port-info { padding: 22px 24px 26px; }
.port-info span { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--azul-claro); font-weight: 700; }

/* Depoimentos */
.estrelas { display: flex; gap: 3px; color: #ffc531; margin-bottom: 14px; }
.estrelas svg { width: 18px; height: 18px; }
.autor { display: flex; align-items: center; gap: 12px; margin-top: 18px; }
.avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--grad-azul); display: grid; place-items: center; font-weight: 800; color: #fff; }
.autor strong { color: #fff; display: block; font-size: 0.95rem; }
.autor small { color: var(--texto-suave); }

/* FAQ (accordion nativo com <details>) */
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 14px; }
.faq details { background: rgba(255,255,255,0.04); border: 1px solid var(--borda); border-radius: var(--r-md); overflow: hidden; transition: var(--transicao); }
.faq details[open] { border-color: rgba(77,147,255,0.45); background: rgba(11,99,255,0.08); }
.faq summary { cursor: pointer; padding: 20px 24px; font-weight: 700; color: #fff; display: flex; justify-content: space-between; gap: 16px; align-items: center; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.5rem; color: var(--azul-claro); transition: var(--transicao); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .resposta { padding: 0 24px 22px; }

/* Contato / CTA final */
.cta-final { position: relative; overflow: hidden; background: var(--navy-2); }
.cta-box {
  position: relative; border-radius: 32px; padding: 62px 40px; text-align: center;
  background: var(--grad-azul); box-shadow: var(--sombra-azul); overflow: hidden;
}
.cta-box h2, .cta-box p { color: #fff; }
.cta-box p { opacity: 0.92; max-width: 620px; margin: 14px auto 0; }
.cta-botoes { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 30px; }
.cta-box .btn-secundario { background: rgba(255,255,255,0.16); border-color: rgba(255,255,255,0.4); }

/* Formulário */
.form { display: grid; gap: 16px; }
.form .linha { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { font-size: 0.88rem; font-weight: 600; color: var(--texto); display: block; margin-bottom: 7px; }
.form input, .form textarea, .form select {
  width: 100%; padding: 14px 16px; border-radius: var(--r-sm); font-size: 1rem; font-family: inherit;
  background: rgba(255,255,255,0.05); border: 1px solid var(--borda); color: #fff;
}
.form input::placeholder, .form textarea::placeholder { color: #6d7f9f; }
.form input:focus, .form textarea:focus, .form select:focus { border-color: var(--azul); background: rgba(11,99,255,0.08); }

/* Rodapé */
.footer { background: #060b19; border-top: 1px solid var(--borda); padding: 66px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.footer img { height: 46px; width: auto; margin-bottom: 16px; }
.footer h4 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 16px; }
.footer li + li { margin-top: 10px; }
.footer a { color: var(--texto-suave); transition: var(--transicao); font-size: 0.95rem; }
.footer a:hover { color: var(--azul-claro); }
.footer-bottom { margin-top: 46px; padding-top: 22px; border-top: 1px solid var(--borda); text-align: center; font-size: 0.87rem; }

/* Botão flutuante do WhatsApp */
.whats-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 90;
  width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, #25d366, #12a150);
  box-shadow: 0 14px 30px -8px rgba(37, 211, 102, 0.6); transition: var(--transicao);
}
.whats-float:hover { transform: scale(1.09); }
.whats-float svg { width: 30px; height: 30px; color: #fff; }

/* ---------- 5. ANIMAÇÕES ---------- */
@keyframes flutuar { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

.revelar { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.revelar.visivel { opacity: 1; transform: none; }

/* Respeita usuários que preferem menos movimento */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition-duration: 0.01ms !important; }
  .revelar { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 6. RESPONSIVIDADE ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-img { order: -1; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav {
    position: fixed; inset: 64px 0 auto 0; flex-direction: column; align-items: stretch;
    background: rgba(10,16,36,0.98); padding: 18px 20px 26px; gap: 4px;
    border-bottom: 1px solid var(--borda); display: none;
  }
  .nav.aberto { display: flex; }
  .nav a { padding: 12px 4px; border-bottom: 1px solid var(--borda); }
  .menu-btn { display: block; }
  .header-cta .btn { display: none; }
  .header-cta .btn-whats-header { display: inline-flex; padding: 12px 18px; font-size: 0.9rem; }
}

@media (max-width: 640px) {
  .sec { padding: 68px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form .linha { grid-template-columns: 1fr; }
  .cta-box { padding: 44px 22px; }
  .hero { padding: 130px 0 70px; }
  .btn { width: 100%; }
  .header-cta .btn { width: auto; }
}