:root {
  --preto: #0b0d10;
  --grafite: #14171c;
  --cinza: #5b6472;
  --claro: #f5f6f8;
  --branco: #ffffff;
  --accent: #16c784;
  --accent-escuro: #0ea06a;
  --vermelho: #e5484d;
  --amarelo: #ffb224;
  --borda: #e4e7ec;
  --radius: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--preto);
  background: var(--branco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3 { line-height: 1.2; font-weight: 800; letter-spacing: -0.02em; }

section h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); margin-bottom: 12px; }

/* Topbar */
.topbar {
  background: var(--preto);
  color: var(--branco);
  text-align: center;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 9px 16px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--borda);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-size: 1.5rem;
  font-weight: 900;
  text-decoration: none;
  color: var(--preto);
  letter-spacing: -0.03em;
}
.logo span { color: var(--accent); }

/* Botões */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  padding: 15px 30px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 8px 24px rgba(22, 199, 132, 0.35);
  text-align: center;
}
.btn:hover { background: var(--accent-escuro); transform: translateY(-2px); }
.btn-sm { padding: 10px 20px; font-size: 0.85rem; box-shadow: none; }
.btn-lg { padding: 18px 40px; font-size: 1.1rem; }
.btn-block { display: block; width: 100%; }

/* Hero */
.hero {
  background: radial-gradient(1200px 600px at 80% -10%, #1d232c 0%, var(--preto) 60%);
  color: var(--branco);
  padding: 72px 0;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}
.badge {
  display: inline-block;
  background: rgba(255, 178, 36, 0.15);
  color: var(--amarelo);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 7px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); margin-bottom: 18px; }
.hero h1 em { color: var(--accent); font-style: normal; }
.hero p { color: #b6bec9; font-size: 1.1rem; margin-bottom: 28px; max-width: 480px; }
.hero-selos {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 24px;
  font-size: 0.85rem;
  color: #cdd4dc;
  padding: 0;
}
.hero-img img {
  border-radius: 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

/* Features */
.features { padding: 80px 0 40px; }
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 72px;
}
.feature-row.invert .feature-img { order: 2; }
.feature-img img {
  border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(11, 13, 16, 0.12);
  width: 100%;
  object-fit: cover;
}
.kicker {
  display: inline-block;
  color: var(--accent-escuro);
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}
.kicker.center { display: block; text-align: center; }
.feature-txt p { color: var(--cinza); font-size: 1.05rem; }

/* Usos */
.usos { background: var(--claro); padding: 72px 0; text-align: center; }
.usos h2 { margin-bottom: 36px; }
.usos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 16px;
}
.uso {
  background: var(--branco);
  border: 1px solid var(--borda);
  border-radius: var(--radius);
  padding: 26px 16px;
  font-size: 1.6rem;
}
.uso strong { display: block; font-size: 0.9rem; margin-top: 10px; color: var(--preto); }

/* Galeria */
.galeria { padding: 80px 0; text-align: center; }
.galeria h2 { margin-bottom: 36px; }
.galeria-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.galeria-grid img {
  border-radius: var(--radius);
  border: 1px solid var(--borda);
  aspect-ratio: 1;
  object-fit: cover;
  width: 100%;
}
.caixa {
  margin-top: 44px;
  background: var(--claro);
  border-radius: var(--radius);
  padding: 32px;
  text-align: left;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.caixa h3 { margin-bottom: 12px; }
.caixa ul { margin: 0 0 14px 20px; color: var(--cinza); }
.caixa .specs { font-size: 0.82rem; color: var(--cinza); border-top: 1px solid var(--borda); padding-top: 14px; }

/* Ofertas */
.ofertas {
  background: linear-gradient(180deg, var(--preto) 0%, #12161c 100%);
  color: var(--branco);
  padding: 88px 0;
  text-align: center;
}
.oferta-unica {
  background: var(--grafite);
  border: 1px solid #262c35;
  border-radius: 18px;
  padding: 40px 32px;
  max-width: 440px;
  margin: 36px auto;
}
.kit-de { color: #6c7683; font-size: 1rem; }
.kit-por { font-size: 3rem; font-weight: 900; color: var(--branco); line-height: 1.1; }
.kit-pix { color: var(--accent); font-size: 0.95rem; margin: 8px 0 24px; }
.oferta-nota { color: #9aa4b1; font-size: 0.8rem; margin-top: 16px; }

.selos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-top: 40px;
  font-size: 0.85rem;
  color: #aab3bf;
}
.selos-grid strong { color: inherit; }
.ofertas .selos-grid div, .cta-final .selos-grid div {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 18px 14px;
}

/* Prova social */
.prova { padding: 72px 0; text-align: center; }
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.stats div {
  background: var(--claro);
  border-radius: var(--radius);
  padding: 26px 14px;
  color: var(--cinza);
  font-size: 0.85rem;
}
.stats strong { display: block; font-size: 1.9rem; font-weight: 900; color: var(--preto); }

/* FAQ */
.faq { padding: 40px 0 80px; max-width: 760px; margin: 0 auto; }
.faq h2 { text-align: center; margin-bottom: 32px; }
.faq details {
  border: 1px solid var(--borda);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 10px;
  background: var(--branco);
}
.faq summary { font-weight: 700; cursor: pointer; list-style: none; position: relative; padding-right: 28px; }
.faq summary::after { content: '+'; position: absolute; right: 0; top: 0; font-size: 1.3rem; color: var(--accent-escuro); }
.faq details[open] summary::after { content: '−'; }
.faq details p { color: var(--cinza); margin-top: 10px; font-size: 0.95rem; }

/* CTA final */
.cta-final {
  background: var(--preto);
  color: var(--branco);
  text-align: center;
  padding: 88px 0;
}
.cta-final p { color: #aab3bf; max-width: 520px; margin: 0 auto 30px; }

/* Footer */
.footer {
  background: #07090b;
  color: #78828e;
  text-align: center;
  padding: 36px 0;
  font-size: 0.82rem;
}
.footer .logo { color: var(--branco); font-size: 1.2rem; margin-bottom: 6px; }

/* Responsivo */
@media (max-width: 900px) {
  .hero-grid, .feature-row { grid-template-columns: 1fr; gap: 32px; }
  .feature-row.invert .feature-img { order: 0; }
  .oferta-unica { padding: 32px 22px; }
  .galeria-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 48px 0; }
}