:root{
    --bg:#ffffff;
    --ink:#0f172a;
    --muted:#475569;
    --line:#e5e7eb;
    --chip:#f1f5f9;
    --card:#ffffff;
    --shadow:0 8px 26px rgba(15,23,42,.08);
    --radius:18px;
    --radius2:22px;
    --accent:#0f766e;
  }
  body{background:var(--bg);}
  .cert-wrap{max-width:1100px;margin:0 auto;padding:24px 18px 60px;}
  .cert-hero{padding:18px 18px 10px;}
  .cert-hero h1{font-size:34px;line-height:1.15;margin:0 0 10px;color:var(--ink);}
  .cert-hero p{margin:0;color:var(--muted);font-size:15px;line-height:1.55;max-width:860px;}
  .cert-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px;}
  @media (max-width:860px){.cert-grid{grid-template-columns:1fr;}}
  .cert-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius2);
    box-shadow:var(--shadow);
    padding:18px 18px 14px;
  }
  .cert-card h3{margin:0 0 6px;font-size:16px;color:var(--ink);letter-spacing:.02em;}
  .cert-card p{margin:0 0 12px;color:var(--muted);font-size:13px;line-height:1.55;}
  .doclist{list-style:none;padding:0;margin:0 0 10px;}
  .doclist li{margin:8px 0;}
  .doclist a{
    color:var(--accent);
    text-decoration:none;
    border-bottom:1px dashed rgba(15,118,110,.55);
    padding-bottom:1px;
  }
  .doclist a:hover{border-bottom-style:solid;}
  .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;}
  .chip{
    font-size:12px;color:#334155;background:var(--chip);
    border:1px solid #e2e8f0;border-radius:999px;
    padding:4px 10px;
  }
  .cert-toplinks{
    display:flex;flex-wrap:wrap;gap:10px;
    margin:14px 0 0;
  }
  .cert-toplinks a{
    font-size:12px;color:#0b1220;background:#f8fafc;
    border:1px solid #e2e8f0;border-radius:999px;
    padding:6px 10px;text-decoration:none;
  }
  .cert-toplinks a:hover{border-color:#cbd5e1;}
  .divider{height:1px;background:var(--line);margin:18px 0;}