.material-nav{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}.material-nav a{padding:12px 18px;background:#f0f8f5;border:1px solid #d4e5df;border-radius:24px;text-decoration:none;font-weight:700}.material-intro{display:grid;grid-template-columns:300px 1fr;gap:40px;align-items:center}.material-robot{max-width:520px;margin:0 auto 28px;text-align:center}.material-robot img{width:100%;height:260px;object-fit:contain;background:#fff}.material-robot figcaption{color:#55716a;font-size:14px}.resource-list{display:grid;gap:20px;margin:26px 0}.resource{display:grid;grid-template-columns:150px 1fr;gap:28px;padding:26px;border:1px solid #d4e5df;border-radius:20px;background:#fff;align-items:start}.resource:not(:has(.document-cover)){grid-template-columns:1fr}.resource h3{margin:4px 0 10px;overflow-wrap:anywhere}.resource .eyebrow{font-size:11px;margin:0}.resource .actions{margin-top:16px;gap:10px}.resource .btn{padding:10px 18px;font-size:14px}.document-cover img{width:100%;height:205px;object-fit:contain;background:#f7faf9}.file-meta{color:#587069;font-size:14px}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin:26px 0}.topic-card{padding:24px;border:1px solid #d4e5df;border-radius:20px}.topic-card img{width:100%;height:180px;object-fit:contain}.topic-card h3{font-size:21px}.topic-card a{font-weight:700}.pdf-reader{margin:28px auto;border:1px solid #d4e5df;background:#f4f7f6;border-radius:16px;overflow:hidden;max-width:1000px}.reader-controls{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px;padding:18px;background:#fff;border-bottom:1px solid #d4e5df}.reader-controls button{border:1px solid #c6dcd3;border-radius:8px;background:#f0f8f5;padding:10px 16px;font-size:18px;cursor:pointer}.reader-controls button:disabled{opacity:.4;cursor:default}.reader-controls input{width:65px;padding:9px;border:1px solid #c6dcd3;border-radius:8px;font:inherit}.pdf-canvas{padding:16px;display:flex;justify-content:center}.pdf-canvas canvas{max-width:100%;height:auto;box-shadow:0 2px 12px #0001;background:white}.pdf-reader [data-status]{padding:0 16px;text-align:center;font-size:14px}.video-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:26px 0}.video-card{padding:20px;border:1px solid #d4e5df;border-radius:18px;min-width:0}.video-card video{width:100%;max-height:380px;object-fit:contain;background:#151515}.video-card a{display:block;margin-top:12px}.material-crosslinks a{overflow-wrap:anywhere}@media(max-width:850px){.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.material-intro{grid-template-columns:1fr;gap:15px}}@media(max-width:640px){.topic-grid,.video-grid{grid-template-columns:1fr}.resource{grid-template-columns:1fr;padding:20px;gap:12px}.document-cover{max-width:180px;margin:auto}.resource .actions{flex-direction:column;align-items:stretch}.material-robot img{height:220px}.reader-controls{gap:8px;padding:12px 8px;font-size:14px}.reader-controls button{padding:8px 12px}.pdf-canvas{padding:8px}.material-nav a{font-size:14px;padding:10px 14px}.topic-card{padding:20px}}