:root{
      --brand:#0ea5e9;
      --ink:#0b1220;
      --muted:#475569;
      --bg:#f6f9ff;
      --card:#ffffff;
      --border:#e2e8f0;
      --shadow:0 14px 40px rgba(10,35,80,.08);
      --radius:18px;
    }
    body{margin:0;background:var(--bg);color:var(--muted);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;font-size:17px;line-height:1.65}
    img{max-width:100%;border-radius:var(--radius)}
    a{color:var(--brand);text-decoration:none}
    a:hover{text-decoration:underline}
    header.hero{background:linear-gradient(120deg,#e0f2fe,#f8fafc);border-radius:var(--radius);padding:40px 24px;margin:20px auto;max-width:1100px;box-shadow:var(--shadow)}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:24px}
    h1{color:var(--ink);font-size:clamp(26px,4vw,42px);margin:0 0 12px}
    p.lead{font-size:18px;margin:0 0 12px}
    .btn{display:inline-block;background:var(--brand);color:#fff;padding:12px 20px;border-radius:14px;font-weight:600;box-shadow:var(--shadow)}
    .btn:hover{opacity:.9}
    section{max-width:1100px;margin:0 auto;padding:20px}
    h2,h3{color:var(--ink)}
    .card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-top:18px;box-shadow:var(--shadow)}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
    @media (max-width:880px){.hero-grid,.grid-2{grid-template-columns:1fr}}
    footer.cta{background:linear-gradient(180deg,#fff,#f1faff);border-top:1px solid var(--border);padding:30px;text-align:center;margin-top:40px}
    /* Before-After Comparison */
    .compare-wrap{position:relative;display:flex;gap:20px;flex-wrap:wrap}
    .compare-item{flex:1;min-width:320px;position:relative;overflow:hidden;border-radius:var(--radius);box-shadow:var(--shadow)}
    .compare-item img{transition:transform .4s ease}
    .compare-item:hover img{transform:scale(1.05)}
    .compare-label{position:absolute;bottom:8px;left:8px;background:rgba(0,0,0,.6);color:#fff;padding:4px 10px;border-radius:10px;font-size:14px;letter-spacing:.4px}