@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --bg:#f7f9fc;
  --surface:#ffffff;
  --surface-soft:#f1f5f9;
  --text:#172033;
  --muted:#64748b;
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --accent:#10b981;
  --border:#e2e8f0;
  --shadow:0 12px 35px rgba(15,23,42,.08);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,Arial,sans-serif;
  line-height:1.6;
  overflow-x:hidden;
}
.container{width:min(1180px,100%);margin:auto;padding:0 24px}

.topbar{
  background:#f8fafc;
  color:#64748b;
  text-align:center;
  padding:8px 16px;
  font-size:12px;
  border-bottom:1px solid var(--border);
}

.header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav{
  min-height:74px;
  display:flex;
  align-items:center;
  gap:30px;
}
.logo{
  font-weight:800;
  font-size:25px;
  color:var(--text);
  text-decoration:none;
  letter-spacing:-1px;
  white-space:nowrap;
}
.logo span{color:var(--primary)}
nav{
  display:flex;
  gap:25px;
  margin-left:auto;
  align-items:center;
}
nav a{
  color:#475569;
  text-decoration:none;
  font-size:14px;
  font-weight:500;
}
nav a:hover{color:var(--primary)}
.nav-cta{
  background:var(--primary);
  color:#fff;
  text-decoration:none;
  padding:11px 18px;
  border-radius:9px;
  font-weight:700;
  font-size:13px;
  transition:.2s;
}
.nav-cta:hover{background:var(--primary-dark)}
.menu{
  display:none;
  background:none;
  border:0;
  color:var(--text);
  font-size:25px;
  cursor:pointer;
}

.hero{
  width:min(1180px,100%);
  margin:auto;
  padding:86px 24px 78px;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(310px,.65fr);
  gap:70px;
  align-items:center;
}
.hero-copy{min-width:0}
.eyebrow{
  font-size:11px;
  letter-spacing:2px;
  color:var(--primary);
  font-weight:800;
}
.hero h1{
  font-size:clamp(40px,5.5vw,68px);
  line-height:1.05;
  letter-spacing:-3px;
  margin:17px 0;
}
.hero h1 span{color:var(--primary)}
.hero p{
  font-size:18px;
  color:var(--muted);
  max-width:670px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin:30px 0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:0;
  text-decoration:none;
  padding:13px 21px;
  border-radius:10px;
  font-weight:700;
  cursor:pointer;
  transition:.2s;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-ghost{
  background:#fff;
  border:1px solid var(--border);
  color:var(--text);
}
.btn-ghost:hover{border-color:#bfdbfe;color:var(--primary)}
.btn-dark{background:#172033;color:#fff}
.btn-dark:hover{background:#0f172a}
.btn-light{background:#fff;color:var(--primary)}
.full{width:100%}
.trust{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  color:#64748b;
  font-size:12px;
}

.hero-card,
.plan,
.tutorials article,
.posts article,
.checkout-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:18px;
  padding:30px;
  box-shadow:var(--shadow);
}
.hero-card{position:relative}
.hero-card-top,.tag{
  font-size:10px;
  letter-spacing:1.5px;
  color:var(--primary);
  font-weight:800;
}
.hero-icon{
  width:56px;
  height:56px;
  border-radius:15px;
  background:#eff6ff;
  color:var(--primary);
  display:grid;
  place-items:center;
  margin:25px 0 15px;
}
.hero-card h3{font-size:25px;margin:0}
.hero-card p{font-size:14px;color:var(--muted)}
.hero-card strong{
  display:block;
  font-size:34px;
  margin:15px 0 22px;
}

.section{
  width:min(1180px,100%);
  margin:auto;
  padding:80px 24px;
}
.section-heading{
  text-align:center;
  max-width:720px;
  margin:0 auto 45px;
}
.section h1,.section h2{
  font-size:42px;
  line-height:1.1;
  letter-spacing:-1.8px;
  margin:10px 0;
}
.section-heading p,.split p{color:var(--muted)}

.plans{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
  max-width:900px;
  margin:auto;
}
.plan{padding:34px}
.plan.featured{
  border-color:#93c5fd;
  box-shadow:0 15px 45px rgba(37,99,235,.12);
}
.plan h3{font-size:24px}
.price{
  font-size:39px;
  font-weight:800;
  margin:20px 0;
}
.price small{
  font-size:12px;
  color:var(--muted);
  font-weight:500;
}
.plan ul,.checklist{padding:0;list-style:none;color:#64748b}
.plan li,.checklist li{
  padding:9px 0;
  border-bottom:1px solid var(--border);
}
.plan li:before,.checklist li:before{
  content:"✓";
  color:var(--accent);
  font-weight:800;
  margin-right:10px;
}

.stats{
  width:min(1000px,calc(100% - 48px));
  margin:0 auto;
  padding:30px 22px 75px;
  border-bottom:1px solid var(--border);
  display:grid;
  grid-template-columns:repeat(3,1fr);
  text-align:center;
}
.stats div{
  display:flex;
  justify-content:center;
  align-items:baseline;
  gap:5px;
}
.stats strong{font-size:38px}
.stats b{color:var(--primary)}
.stats span{color:var(--muted);font-size:13px}

.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:70px;
  align-items:center;
}
.device-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
}
.device-grid div{
  background:var(--surface);
  border:1px solid var(--border);
  padding:30px;
  border-radius:14px;
  font-weight:700;
  box-shadow:0 7px 20px rgba(15,23,42,.04);
}

.faq-section{border-top:1px solid var(--border)}
.faq{max-width:850px;margin:auto}
.faq details{
  border-bottom:1px solid var(--border);
  padding:20px 0;
}
.faq summary{cursor:pointer;font-weight:700}
.faq p{color:var(--muted);margin-bottom:0}

.cta{
  width:min(1136px,calc(100% - 48px));
  margin:20px auto 80px;
  padding:38px 42px;
  border-radius:20px;
  background:linear-gradient(100deg,#2563eb,#3b82f6);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  box-shadow:0 18px 45px rgba(37,99,235,.2);
}
.cta h2{margin:0;font-size:30px}
.cta p{margin:5px 0 0;color:#dbeafe}

.footer{
  border-top:1px solid var(--border);
  padding:60px 0 25px;
  background:#fff;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:50px;
}
.footer h4{margin-top:0}
.footer-grid div{display:flex;flex-direction:column;gap:8px}
.footer a{color:#64748b;text-decoration:none;font-size:14px}
.footer a:hover{color:var(--primary)}
.footer p{color:var(--muted);max-width:350px}
.copyright{
  text-align:center;
  color:#94a3b8;
  font-size:12px;
  margin-top:45px;
  padding-top:20px;
  border-top:1px solid var(--border);
}
.whatsapp{
  position:fixed;
  right:22px;
  bottom:22px;
  width:54px;
  height:54px;
  border-radius:50%;
  background:#25d366;
  color:#fff;
  display:grid;
  place-items:center;
  text-decoration:none;
  font-weight:900;
  box-shadow:0 8px 30px rgba(15,23,42,.2);
  z-index:90;
}

.tutorials{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.posts{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}
.tutorials article b{color:var(--primary);font-size:12px}
.tutorials h3,.posts h3{font-size:21px}
.tutorials p,.posts p{color:var(--muted);font-size:14px}
.tutorials a,.posts a{
  color:var(--primary);
  text-decoration:none;
  font-weight:700;
  font-size:13px;
}
.posts article span{
  color:var(--primary);
  font-size:10px;
  font-weight:800;
  letter-spacing:1.5px;
}

.narrow{max-width:900px}
.checkout{
  min-height:600px;
  display:grid;
  place-items:center;
}
.checkout-card{max-width:600px;width:100%}
.big-price{
  font-size:50px;
  font-weight:800;
  color:var(--primary);
  margin:10px 0;
}
.small{font-size:11px;color:#94a3b8}

.contact-form{
  max-width:700px;
  margin:auto;
  display:grid;
  gap:17px;
}
.contact-form label{font-size:13px;font-weight:700}
.contact-form input,.contact-form textarea{
  display:block;
  width:100%;
  margin-top:7px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:10px;
  color:var(--text);
  padding:13px;
  font:inherit;
  outline:none;
}
.contact-form input:focus,.contact-form textarea:focus{
  border-color:#93c5fd;
  box-shadow:0 0 0 3px #dbeafe;
}
.contact-form button{width:max-content}

@media(max-width:900px){
  .nav{gap:18px}
  nav{gap:16px}
  .hero{grid-template-columns:1fr;gap:40px}
  .hero-card{max-width:600px}
  .tutorials{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(max-width:800px){
  .container{padding:0 18px}
  .topbar{font-size:11px}
  .nav{min-height:68px}
  nav{
    display:none;
    position:absolute;
    top:68px;
    left:0;
    right:0;
    background:#fff;
    border-bottom:1px solid var(--border);
    padding:18px;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    box-shadow:0 15px 25px rgba(15,23,42,.07);
  }
  nav.open{display:flex}
  nav a{padding:12px 8px}
  .menu{display:block;margin-left:auto}
  .nav-cta{display:none}
  .hero{padding:58px 18px 60px}
  .hero h1{letter-spacing:-2px}
  .hero p{font-size:16px}
  .section{padding:65px 18px}
  .section h1,.section h2{font-size:34px}
  .plans,.split,.footer-grid{grid-template-columns:1fr}
  .stats{
    width:calc(100% - 36px);
    grid-template-columns:1fr;
    gap:24px;
  }
  .cta{
    width:calc(100% - 36px);
    margin:10px auto 60px;
    padding:28px;
    flex-direction:column;
    align-items:flex-start;
  }
}

@media(max-width:560px){
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .trust{gap:10px;flex-direction:column}
  .hero-card,.plan,.tutorials article,.posts article,.checkout-card{padding:23px}
  .tutorials,.posts,.device-grid{grid-template-columns:1fr}
  .stats strong{font-size:32px}
  .section-heading{margin-bottom:32px}
  .big-price{font-size:40px}
  .whatsapp{right:16px;bottom:16px}
}