:root{
    --bg:#0B1220;
    --bg-alt:#0F1728;
    --card:#111A2E;
    --text:#E6EAF2;
    --muted:#9BA4B5;
    --accent:#59E1C7;
    --accent-2:#5BA7FF;
    --border:#1C2743;
    --shadow: 0 10px 30px rgba(0,0,0,0.3);
  }
  
  *{box-sizing:border-box}
  html,body{margin:0;padding:0}
  body{
    font-family:Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color:var(--text);
    background:linear-gradient(180deg, var(--bg), var(--bg-alt));
    line-height:1.5;
  }
  
  .container{max-width:1100px;margin:0 auto;padding:0 20px}
  a{color:var(--text);text-decoration:none}
  a:hover{opacity:.9}
  
  /* Buttons */
  .btn{
    display:inline-flex; align-items:center; justify-content:center;
    border-radius:10px; padding:12px 18px; font-weight:600; border:1px solid transparent;
    transition:transform .06s ease, background .2s ease, border-color .2s ease;
  }
  .btn:hover{transform:translateY(-1px)}
  .btn:active{transform:translateY(0)}
  .btn-primary{background:linear-gradient(90deg,var(--accent),var(--accent-2)); color:#0a0f1a}
  .btn-outline{border-color:var(--border); background:transparent}
  .btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
  .btn-small{padding:8px 12px;font-size:.95rem}
  .btn-lg{padding:14px 20px; font-size:1.05rem}
  
  /* Header */
  .site-header{
    position:sticky; top:0; z-index:50; backdrop-filter:saturate(140%) blur(8px);
    background:rgba(11,18,32,0.7); border-bottom:1px solid var(--border);
  }
  .header-inner{display:flex; align-items:center; justify-content:space-between; min-height:68px}
  .brand{display:flex; align-items:center; gap:10px; font-weight:800; font-size:1.15rem}
  .brand-text .accent{color:var(--accent)}
  .brand-mark{font-size:1.25rem}
  .nav{display:flex; gap:18px; align-items:center}
  .nav a{opacity:.92}
  .nav-toggle{display:none;background:none;border:0;cursor:pointer}
  .nav-toggle span{display:block;width:24px;height:2px;background:var(--text);margin:5px 0}
  
  /* Hero */
  .hero{padding:70px 0 20px;border-bottom:1px solid var(--border)}
  .hero-grid{display:grid;grid-template-columns:1.1fr .9fr; gap:40px; align-items:center}
  .hero-copy h1{font-size:3rem;line-height:1.05;margin:0 0 12px}
  .lead{color:var(--muted);font-size:1.08rem}
  .hero-cta{display:flex; gap:12px; margin:18px 0 10px}
  .trust-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:8px}
  .hero-art img{width:100%;height:auto;border-radius:14px;box-shadow:var(--shadow)}
  
  /* Sections */
  .section{padding:70px 0;border-bottom:1px solid var(--border)}
  .section.alt{background:rgba(17,26,46,0.5)}
  .section-title{font-size:2rem;margin:0 0 24px}
  
  /* Features */
  .features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
  .card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px;box-shadow:var(--shadow)}
  .feature .icon{font-size:1.5rem;margin-bottom:8px}
  
  /* Steps */
  .steps{counter-reset:step;display:grid;gap:10px;padding-left:0}
  .steps li{list-style:none;background:var(--card);border:1px solid var(--border);padding:16px;border-radius:12px}
  .steps li::before{counter-increment:step; content:counter(step) "."; font-weight:700; margin-right:8px; color:var(--accent)}
  
  /* Specs */
  .specs-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
  .spec{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}
  .spec .label{display:block;color:var(--muted);font-size:.9rem}
  .spec .value{font-weight:600}
  
  /* Pricing */
  .pricing-card{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
  .pricing-left{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px}
  .pricing-right .buy-card{background:#0b1322;border:1px dashed var(--border);border-radius:14px;padding:16px}
  .checklist{padding-left:0;margin:12px 0 0;list-style:none;display:grid;gap:6px}
  .checklist li::before{content:"✔ "; color:var(--accent)}
  .buy-note{color:var(--muted); margin-top:8px}
  
  /* Testimonials */
  .testimonials{display:grid;gap:16px}
  .quote{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px}
  .quote cite{display:block;margin-top:10px;color:var(--muted)}
  
  /* FAQ */
  .faq{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;margin:10px 0}
  .faq summary{font-weight:600;cursor:pointer}
  
  /* Contact */
  .contact-form{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px}
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .field{display:grid;gap:8px}
  .field-full{grid-column:1/-1}
  input, textarea{
    background:#0d1527; border:1px solid var(--border); color:var(--text);
    padding:12px 12px;border-radius:10px; outline:none;
  }
  input:focus, textarea:focus{border-color:var(--accent)}
  .hp{position:absolute;left:-5000px;opacity:0}
  
  /* Footer */
  .site-footer{padding:30px 0}
  .footer-grid{display:flex;justify-content:space-between;align-items:center}
  .footer-nav{display:flex;gap:16px}
  
  /* Responsive */
  @media (max-width: 980px){
    .hero-grid{grid-template-columns:1fr;gap:24px}
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .specs-grid{grid-template-columns:repeat(2,1fr)}
    .pricing-card{grid-template-columns:1fr}
    .nav{display:none}
    .nav.open{display:flex;flex-direction:column;position:absolute;top:68px;right:20px;
      background:rgba(11,18,32,.97);border:1px solid var(--border);padding:14px;border-radius:12px}
    .nav-toggle{display:block}
  }
  @media (max-width: 560px){
    .features-grid{grid-template-columns:1fr}
    .specs-grid{grid-template-columns:1fr}
  }