/* Base */
:root{
  --green-900:#064e3b;
  --green-800:#065f46;
  --green-700:#047857;
  --green-600:#059669;
  --green-500:#10b981;
  --green-400:#34d399;
  --green-300:#6ee7b7;
  --green-50:#ecfdf5;
  --blue-700:#1d4ed8;
  --blue-600:#2563eb;
  --blue-200:#bfdbfe;
  --blue-50:#eff6ff;
  --gray-900:#0f172a;
  --gray-700:#334155;
  --gray-600:#475569;
  --gray-500:#64748b;
  --gray-300:#cbd5e1;
  --gray-200:#e2e8f0;
  --white:#ffffff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,'Noto Sans',sans-serif;color:var(--gray-900);background:#fff}
img{max-width:100%;display:block}
.container{width:min(1120px,92%);margin:0 auto}
.row{display:flex;gap:16px}
.center{align-items:center;justify-content:center}
.between{justify-content:space-between}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* Header */
.header{position:sticky;top:0;background:var(--white);border-bottom:1px solid var(--gray-200);z-index:40}
.header .brand{font-weight:800;color:var(--green-800);text-decoration:none;font-size:18px}
.nav{display:flex;gap:18px}
.nav a{color:var(--gray-700);text-decoration:none;font-weight:500}
.nav a:hover{color:var(--green-700)}

/* Hero */
.hero{padding:72px 0;background:linear-gradient(180deg,var(--green-50),#fff);text-align:center}
.hero__badge{display:inline-block;padding:6px 12px;border-radius:999px;background:var(--green-100,#dcfce7);color:var(--green-800);font-weight:600;margin-bottom:16px}
.hero__title{font-size:40px;line-height:1.1;margin:0 0 12px;font-weight:800;color:var(--green-900)}
.hero__title .accent{color:var(--blue-600);text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:6px}
.hero__subtitle{font-size:18px;color:var(--gray-700);max-width:720px;margin:0 auto}
.hero__proof{margin:24px 0;color:var(--green-800);gap:24px;justify-content:center}
.proof__item{display:flex;gap:8px;align-items:center}
.proof__item i{color:var(--green-600)}
.hero__cta{gap:12px;margin-top:16px;justify-content:center}
.hero__security{margin-top:12px;color:var(--gray-600);font-size:14px}

/* Sections */
.section{padding:56px 0}
.section--alt{background:#f8fafc}
.section h2{text-align:center}
.section p{text-align:center}
.card{background:#fff;border:1px solid var(--gray-200);border-radius:14px;padding:20px;text-align:center}
.card h3{margin:0 0 8px;color:var(--green-800)}
.features{list-style:none;padding:0;margin:16px 0;display:grid;gap:10px;justify-items:center}
.features li{display:flex;gap:10px;align-items:center;justify-content:center;text-align:center}
.features i{color:var(--green-600);margin-top:0}
.bullets{list-style:none;padding-left:0;color:var(--gray-700);text-align:center}
.bullets li{margin-bottom:8px}

/* Testimonials */
.testimonials{gap:16px}
.testimonial{background:var(--blue-50);border:1px solid var(--blue-200);border-radius:12px;padding:16px;color:var(--gray-700);text-align:center}
.testimonial .avatar{width:72px;height:72px;border-radius:50%;object-fit:cover;margin:0 auto 10px;border:3px solid var(--blue-200)}

/* Offer */
.offer__wrap{border:2px solid var(--green-300);border-radius:16px;padding:24px;background:linear-gradient(180deg,#fff,var(--green-50))}
.offer__head{text-align:center}
.countdown{display:flex;justify-content:center;gap:12px;margin-top:12px}
.countdown .time{background:var(--gray-900);color:#fff;border-radius:10px;padding:10px 12px;min-width:86px;text-align:center}
.countdown .time span{font-weight:800;font-size:28px;display:block}
.countdown .time small{font-size:12px;color:#d1fae5}
.offer__price{text-align:center;margin-top:16px}
.price__from{color:var(--gray-600);font-size:18px}
.price__to{color:var(--green-900);font-size:28px;margin:6px 0}
.pix{color:var(--gray-600)}
.secure{color:var(--gray-600);font-size:14px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:12px 18px;font-weight:700;text-decoration:none;border:1px solid transparent;cursor:pointer}
.btn--primary{background:var(--green-600);color:#fff;border-color:var(--green-600)}
.btn--primary:hover{background:var(--green-700);border-color:var(--green-700)}
.btn--ghost{background:#ffffff;color:var(--green-800);border-color:var(--green-300)}
.btn--ghost:hover{border-color:var(--green-600);color:var(--green-900)}
.btn--xl{padding:16px 22px;font-size:18px}
.btn--sm{padding:8px 12px;font-size:14px;border-radius:8px}

/* FAQ */
.faq details{border:1px solid var(--gray-200);border-radius:10px;padding:12px 14px;margin-bottom:10px;background:#fff;text-align:center}
.faq summary{cursor:pointer;font-weight:600;color:var(--green-800)}
.faq p{margin-top:8px}

/* Footer */
.footer{border-top:1px solid var(--gray-200);padding:18px 0;color:var(--gray-600)}
.footer .container{justify-content:center;text-align:center;gap:12px}

/* Sticky CTA */
.sticky-cta{position:fixed;bottom:-100px;left:0;right:0;background:#052e1e;color:#e2e8f0;padding:10px 0;transition:bottom .3s ease;z-index:50}
.sticky-cta .btn{box-shadow:0 8px 20px rgba(16,185,129,.35)}

/* Responsive */
@media (max-width:900px){
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .hero__title{font-size:34px}
}