body{font-family:"Courier New", Courier, monospace;background:#fff;color:#222;margin:0;padding:1em;line-height:1.7}@media (min-width: 768px){body{margin:2em auto;max-width:700px;padding:0}}header,footer{text-align:center}nav a{color:#222;text-decoration:none;margin:0 0.5em}nav a:hover{text-decoration:underline}h1,h2{font-weight:normal;border-bottom:1px solid #eee;padding-bottom:0.2em}hr{border:none;border-top:1px solid #eee;margin:2em 0}ul{padding-left:1.2em}a{color:#0055aa}a:hover{color:#003377}.cert-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(220px, 1fr));gap:1em}.certifications-shell{max-width:1100px;margin:0 auto}.cert-card{border:1px solid #eee;padding:0.7em}.cert-card img{display:block;width:100%;height:auto;border:1px solid #eee}.cert-image-wrap{position:relative}.cert-fallback{display:none;border:1px dashed #eee;padding:1.2em 0.8em;text-align:center}.cert-image-wrap.is-broken .cert-fallback{display:block}.cert-meta,.cert-link{margin:0.6em 0 0}@media (min-width: 900px){.cert-grid{grid-template-columns:repeat(auto-fill, minmax(170px, 1fr))}.cert-card img{max-height:200px;object-fit:cover}}