:root{
    --brand:#0ea5e9; /* icy aqua */
    --ink:#0f172a;
    --muted:#6b7280;
    --soft:#f0f9ff;
    --line:#dbeafe;
    --radius:16px;
    --shadow:0 8px 28px rgba(15,26,42,.08);
    --card:#ffffff;
  }
  *{box-sizing:border-box}
  html,body{margin:0;padding:0;background:var(--soft);color:var(--ink);font-family:Inter,system-ui,Segoe UI,Arial,sans-serif}
  a{color:var(--brand);text-decoration:none}
  .container{max-width:1120px;margin:0 auto;padding:20px}
  header{display:flex;align-items:center;gap:16px;padding:14px 0}
  header .brand{font-weight:800;color:var(--brand);font-size:20px}
  header nav{margin-left:auto}
  header nav a{color:var(--muted);font-size:14px}
  .hero{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;margin-top:8px}
  .card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
  h1{margin:4px 0 10px;font-size:28px;line-height:1.2}
  h2{margin:18px 0 8px;font-size:22px}
  p{line-height:1.7}
  .muted{color:var(--muted)}
  .btn{display:inline-block;background:var(--brand);color:#fff;padding:12px 18px;border-radius:12px}
  .btn.alt{background:#fff;color:var(--brand);border:1px solid var(--line)}
  .specs{width:100%;border-collapse:collapse}
  .specs td{padding:10px;border-bottom:1px solid var(--line);font-size:14px}
  .features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
  .feature{background:#f8fafc;border:1px solid var(--line);padding:14px;border-radius:12px}
  .gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
  .faq-item{border-bottom:1px solid var(--line);padding:12px 0}
  .sticky-bar{position:sticky;bottom:12px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:10px 12px;border-radius:14px;display:flex;gap:12px;align-items:center;justify-content:space-between;margin-top:18px}
  footer{margin:26px 0;color:var(--muted);font-size:13px;text-align:center}
  @media(max-width:980px){.hero{grid-template-columns:1fr}}
  @media(max-width:560px){h1{font-size:22px}}