:root{
  --bg:#0b0b0b;
  --card:#161616;
  --muted:#9aa0a6;
  --brand:#00ff88;
  --brand-2:#21d891;
  --text:#fff;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family: 'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;scroll-behavior:smooth}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
/* Header */
.header{position:sticky;top:0;z-index:50;background:rgba(0,0,0,.6);backdrop-filter: blur(6px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.5px}
.logo-badge{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--brand),#35ffa1);display:grid;place-items:center;color:#111;font-weight:900;box-shadow:0 6px 18px rgba(0,255,136,.25)}
.nav a{opacity:.9}
.cta{background:var(--brand);color:#111;padding:10px 18px;border-radius:12px;font-weight:700;box-shadow:0 8px 18px rgba(0,255,136,.25);transition:.2s}
.cta:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(0,255,136,.32)}
/* Hero with banner */
.hero{
  min-height:76vh;display:grid;place-items:center;position:relative;overflow:hidden;
  background: linear-gradient( rgba(0,0,0,.55), rgba(0,0,0,.65) ), url('../img/banner.jpg') center/cover no-repeat;
}
.hero-inner{padding:80px 20px;text-align:center}
.kicker{color:var(--brand);font-weight:700;letter-spacing:.1em;text-transform:uppercase;font-size:.9rem}
.hero h1{font-size: clamp(2rem, 4vw + .5rem, 3.4rem);line-height:1.1;margin:.4rem 0 1rem}
.hero p{max-width:760px;margin:0 auto 1.5rem;color:#d8e1db;font-size:1.1rem;opacity:.95}
.btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{padding:14px 20px;border-radius:14px;font-weight:800}
.btn-primary{background:var(--brand);color:#111;box-shadow:0 12px 26px rgba(0,255,136,.25)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-outline{border:1px solid rgba(255,255,255,.22);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.06)}
/* Section */
.section{padding:70px 0}
.section h2{font-size:clamp(1.4rem,2vw + 1rem,2.2rem);margin:0 0 18px}
.section .sub{color:var(--muted);margin-bottom:36px}
/* Cards */
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.card{grid-column:span 12;background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:18px;box-shadow:var(--shadow);overflow:hidden;transition:.25s all ease}
.card:hover{transform:translateY(-4px)}
.card-top{height:160px;background:linear-gradient(135deg,rgba(0,255,136,.18),rgba(0,255,136,.06));display:grid;place-items:center}
.icon{width:64px;height:64px;filter:drop-shadow(0 6px 16px rgba(0,255,136,.3))}
.card-body{padding:22px}
.card h3{margin:0 0 8px}
.card p{color:#cbd5cf;margin:0}
@media(min-width:740px){
  .card{grid-column:span 6}
}
@media(min-width:1024px){
  .card{grid-column:span 3}
}
/* Plans */
.plan{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;padding:26px;border-radius:18px;background:linear-gradient(180deg,var(--card),#121212);border:1px solid rgba(255,255,255,.06)}
.plan h3{margin:10px 0 4px}
.price{font-size:1.6rem;font-weight:900}
.plan .btn{margin-top:10px;width:100%}
/* FAQ */
details{background:var(--card);border:1px solid rgba(255,255,255,.06);padding:16px 18px;border-radius:14px}
details+details{margin-top:10px}
summary{cursor:pointer;font-weight:700}
/* Footer */
.footer{border-top:1px solid rgba(255,255,255,.08);opacity:.9;padding:30px 0;color:#cbd5cf}
/* WhatsApp Floating */
.whatsapp{position:fixed;bottom:22px;right:22px;background:#25D366;width:60px;height:60px;border-radius:50%;display:grid;place-items:center;box-shadow:0 10px 26px rgba(37,211,102,.45);z-index:60}
.whatsapp svg{width:30px;height:30px;fill:#111}