/* Enhanced responsive CSS with improved mobile support */
:root{
  --bg:#0b1220;
  --fg:#e6edf7;
  --muted:#a4b1cd;
  --brand:#10b981;
  --danger:#ef4444;
  --card:#111827;
  --border:#1f2937;
  --accent:#06b6d4;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,sans-serif;
  line-height:1.6;
  font-size:16px;
}
.container{max-width:1100px;margin:0 auto;padding:20px}
@media(min-width:768px){.container{padding:24px}}

.header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 0;
  flex-wrap:wrap;
  gap:12px;
}
.brand{display:flex;gap:12px;align-items:center;font-size:18px}
.brand .logo{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--accent))}
.nav{display:flex;gap:8px;flex-wrap:wrap}
.nav a{color:var(--muted);text-decoration:none;padding:4px 8px;border-radius:4px;transition:all .2s}
.nav a:hover{color:var(--fg);background:rgba(255,255,255,.05)}

.hero{padding:40px 0 48px}
.hero h1{font-size:clamp(26px,6vw,48px);margin:0 0 16px;line-height:1.2;font-weight:700}
.hero p{color:var(--muted);max-width:720px;font-size:clamp(16px,2vw,18px);margin-bottom:8px}
.cta{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}
.btn{
  display:inline-block;
  border:1px solid #2b354a;
  background:#0f172a;
  color:var(--fg);
  padding:12px 20px;
  border-radius:8px;
  text-decoration:none;
  font-weight:500;
  transition:all .2s;
  text-align:center;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.3)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#05140f}
.btn-primary:hover{background:#0ea975}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:24px}
@media(max-width:600px){.grid{grid-template-columns:1fr}}

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:12px;
  padding:20px;
  transition:all .2s;
}
.card:hover{border-color:var(--brand);transform:translateY(-2px)}
.card h3{margin:0 0 8px;font-size:18px;color:var(--fg)}
.card p{color:var(--muted);margin:0;font-size:14px;line-height:1.5}

.section{padding:48px 0;border-top:1px solid var(--border)}
.section:first-of-type{border-top:none}
.section h2{font-size:clamp(24px,4vw,32px);margin:0 0 16px;font-weight:700}
.section p{color:var(--muted);max-width:800px;margin-bottom:12px;line-height:1.7}
.section ul{list-style:none;padding:0;margin:16px 0}
.section ul li{padding:8px 0 8px 28px;position:relative;color:var(--muted)}
.section ul li:before{content:'✓';position:absolute;left:0;color:var(--brand);font-weight:700}

.badge{
  display:inline-block;
  background:#0f172a;
  border:1px solid #2b354a;
  color:var(--muted);
  padding:6px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  margin-bottom:16px;
}

.highlight-box{
  background:linear-gradient(135deg,rgba(16,185,129,.1),rgba(6,182,212,.1));
  border:1px solid var(--brand);
  border-radius:12px;
  padding:24px;
  margin:24px 0;
}
.highlight-box h3{margin:0 0 12px;color:var(--brand);font-size:20px}
.highlight-box p{margin:0;line-height:1.6}

.pricing-highlight{
  display:inline-block;
  background:var(--brand);
  color:#05140f;
  padding:8px 16px;
  border-radius:8px;
  font-weight:700;
  font-size:20px;
  margin:0 4px;
}

.footer{padding:32px 0 24px;color:var(--muted);font-size:14px;border-top:1px solid var(--border);text-align:center}
.footer a{color:var(--brand);text-decoration:none}

.form{display:grid;gap:14px;max-width:560px;margin-top:20px}
.input,textarea{
  width:100%;
  padding:12px 14px;
  border-radius:8px;
  border:1px solid #2b354a;
  background:#0f172a;
  color:var(--fg);
  font-size:15px;
  transition:border-color .2s;
}
.input:focus,textarea:focus{outline:none;border-color:var(--brand)}
textarea{resize:vertical;min-height:100px}

.alert{padding:12px 14px;border-radius:8px;margin-top:12px}
.alert-success{background:#05291f;color:#73d2b6;border:1px solid #0e4031}
.alert-error{background:#2a1413;color:#f7b0aa;border:1px solid #51201c}
.small{font-size:13px;color:var(--muted);line-height:1.5}

@media(max-width:768px){
  .hero h1{line-height:1.25}
  .cta{flex-direction:column}
  .btn{width:100%}
  .section{padding:32px 0}
}