:root{
      --brand:#0ea5e9;           /* medical blue */
      --brand-2:#7dd3fc;         /* accent */
      --ink:#0b1220;             /* headings */
      --muted:#475569;           /* paragraphs */
      --bg:#f6f9ff;              /* page */
      --card:#ffffff;            /* surfaces */
      --shadow:0 24px 60px rgba(10,35,80,.12);
      --radius:20px;
    }
    *{box-sizing:border-box}
    html,body{margin:0;padding:0}
    body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial; color:var(--muted); background:var(--bg); line-height:1.65}
    h1,h2,h3{color:var(--ink); letter-spacing:.2px}
    img{max-width:100%; height:auto; display:block}
    .container{width:min(1180px,92vw); margin:0 auto}

    /* Header */
    .topbar{position:sticky; top:0; z-index:40; backdrop-filter: blur(8px); background:rgba(255,255,255,.7); border-bottom:1px solid #e8f1fb}
    .nav{display:flex; align-items:center; justify-content:space-between; gap:1rem; padding:.9rem 0}
    .brand{font-weight:800; letter-spacing:.4px; color:#0369a1}
    .nav .cta{display:flex; gap:.6rem}

    /* Buttons */
    .btn{display:inline-flex; align-items:center; justify-content:center; gap:.5rem; padding:.9rem 1.2rem; border-radius:999px; text-decoration:none; font-weight:600}
    .btn-primary{background:var(--brand); color:#fff; box-shadow:var(--shadow)}
    .btn-ghost{background:#fff; color:#0369a1; border:1px solid #e5f1ff}

    /* Hero */
    header.hero{position:relative; overflow:hidden; padding:clamp(2rem,5vw,4rem) 0}
    .hero-wrap{display:grid; grid-template-columns:1.1fr .9fr; gap:2rem; align-items:center}
    @media (max-width:980px){.hero-wrap{grid-template-columns:1fr}}
    .gradient{position:absolute; inset:-30% -20% auto -20%; height:70%; background:radial-gradient(70% 60% at 40% 40%, rgba(14,165,233,.35), transparent 60%); pointer-events:none}
    .kicker{display:inline-block; padding:.35rem .7rem; border-radius:999px; border:1px solid rgba(14,165,233,.25); color:#0369a1; background:rgba(14,165,233,.08); font-size:.85rem}
    .tag-row{display:flex; flex-wrap:wrap; gap:.5rem; margin-top:.8rem}
    .pill{padding:.4rem .7rem; background:#f1f8ff; border:1px solid #e1f0ff; color:#03507b; border-radius:999px; font-size:.85rem}

    /* Cards & grid */
    .section{padding:clamp(1.8rem,5vw,3rem) 0}
    .card{background:var(--card); border-radius:var(--radius); box-shadow:var(--shadow)}
    .grid{display:grid; gap:1.2rem}
    .grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
    .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
    .grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
    @media (max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}}
    @media (max-width:860px){.grid-3,.grid-2{grid-template-columns:1fr}}

    /* Feature rows (no dial/board styles) */
    .feature{display:flex; gap:1rem; align-items:flex-start}
    .feature svg{flex:0 0 28px}

    /* Specs */
    .specs{width:100%; border-collapse:collapse}
    .specs th,.specs td{padding:.9rem 1rem; border-bottom:1px solid #eef2f7; text-align:left}
    .specs th{width:34%; color:var(--ink); background:linear-gradient(180deg,#fbfdff,#f3f8ff)}

    /* Accordion */
    .accordion{border:1px solid #eaf2fb; border-radius:var(--radius); overflow:hidden}
    .acc-item + .acc-item{border-top:1px solid #eaf2fb}
    .acc-hd{background:#fff; padding:1rem 1.2rem; cursor:pointer; display:flex; justify-content:space-between; align-items:center}
    .acc-bd{padding:0 1.2rem 1.2rem; display:none; background:linear-gradient(180deg,#ffffff,#f9fcff)}
    .acc-item.active .acc-bd{display:block}
    .acc-item.active .chev{transform:rotate(180deg)}
    .chev{transition:transform .2s ease}

    footer{padding:2.5rem 0; color:#6b7280}