/* Additive sections only. Original site theme and existing sections stay intact. */
.catalog-addition{padding-top:80px;padding-bottom:80px;scroll-margin-top:90px}
.catalog-addition .section-top{text-align:center;margin-bottom:30px}
.catalog-addition .section-top h2{font-size:2.5rem;color:var(--text-color);margin-bottom:15px}
.catalog-addition .section-top p{color:var(--text-muted)}
.catalog-addition .eyebrow{display:none}.collection-total{margin-top:15px}
.directory-controls{display:flex;flex-direction:column;align-items:center;gap:20px;margin-bottom:25px}
.search-box{display:flex;align-items:center;gap:12px;max-width:500px;width:100%;background:white;border:1px solid #ddd;padding:12px 16px;border-radius:8px}
.search-box input{border:0;outline:none;min-width:0;width:100%;font:inherit;background:transparent}.search-box:focus-within{outline:2px solid var(--primary-color)}.search-box kbd{color:#888}
.filter-list{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.filter-chip{font:inherit;font-size:.85rem;padding:9px 15px;border-radius:20px;border:1px solid #ddd;background:#fff;cursor:pointer;color:var(--text-color)}.filter-chip.active,.filter-chip:hover{background:var(--primary-color);border-color:var(--primary-color)}.filter-chip span{margin-left:8px}.result-count{color:var(--text-muted);font-size:.85rem;margin-bottom:20px}
.directory-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;max-width:800px;margin:0 auto}
.directory-card{display:flex;flex-direction:column;min-width:0;background:white;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s}.directory-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.card-visual{position:relative;aspect-ratio:1.6;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#fff3c4}.tone-1{background:#e7edf5}.tone-2{background:#f4e8dd}.tone-3{background:#e8efe6}.tone-4{background:#eee6f3}.visual-symbol{font-size:3rem;font-weight:700;color:#555}.card-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.card-copy{padding:22px;display:flex;flex-direction:column;flex:1}.card-category{font-size:.75rem;color:#8a6500;margin-bottom:8px}.card-copy h3{font-size:1.1rem;margin-bottom:12px;line-height:1.5;word-break:keep-all}.card-copy>p{font-size:.85rem;color:var(--text-muted);line-height:1.8;flex:1;margin-bottom:22px}.card-bottom{border-top:1px solid #eee;padding-top:15px;display:flex;justify-content:space-between;gap:10px;align-items:center}.card-bottom>span{font-size:.7rem;color:#888}.card-bottom>a{font-size:.8rem;font-weight:600}.card-bottom>a:hover{color:#976e00}.card-bottom>a span{margin-left:5px}.empty-results{text-align:center;padding:50px 20px}.empty-results p{margin:15px 0}.text-link{font:inherit;font-size:.9rem;text-decoration:underline;background:none;border:none;cursor:pointer}
.knowledge-addition{padding:70px 0;background:#fff}.knowledge-addition:nth-of-type(even){background:var(--bg-color)}.archive-more{text-align:center;margin-top:30px}.portfolio-section{padding-top:25px;padding-bottom:35px}.portfolio-section .section-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:25px}.portfolio-section .eyebrow{display:none}.portfolio-section h2{font-size:1.6rem}.section-count{font-size:.85rem;color:var(--text-muted)}
.portfolio-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}.portfolio-grid>div{min-width:0;overflow:hidden;background:#fff;border-radius:16px;box-shadow:var(--shadow-sm)}.portfolio-grid .singleWebsiteCard{display:flex;flex-direction:column;height:100%}.portfolio-grid img{width:100%;height:210px;object-fit:contain;display:block;background:#fff;border-bottom:1px solid #eee}.portfolio-grid .projectText{padding:22px;overflow-wrap:anywhere}.portfolio-grid h5{font-size:1.05rem;line-height:1.6;margin-bottom:12px}.portfolio-grid .firstCommitDate,.portfolio-grid .lec_inst{font-size:.8rem;color:var(--text-muted);display:block;margin-bottom:8px}.portfolio-grid .lec_inst{color:#8a6500;font-weight:600}.portfolio-grid p,.portfolio-grid .bookDescription{font-size:.85rem;line-height:1.8;color:var(--text-muted);margin:12px 0}.portfolio-grid .gitIcons{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.portfolio-grid .gitIcons a{display:inline-flex;align-items:center;gap:5px;border:1px solid #ddd;border-radius:6px;padding:7px 10px;font-size:.75rem}.portfolio-grid .gitIcons svg{width:16px;height:16px}.portfolio-grid .gitIcons i{display:none}.source-note{font-size:.8rem;color:var(--text-muted);padding-top:25px;padding-bottom:50px}.source-note a{text-decoration:underline}.archive-controls{padding-top:30px;padding-bottom:20px}.archive-controls label{display:block;margin-bottom:10px}.archive-controls input{font:inherit;width:100%;max-width:500px;padding:12px;border:1px solid #ddd;border-radius:8px}.archive-controls p{font-size:.85rem;color:var(--text-muted);margin-top:10px}
.directory-card[hidden],.portfolio-grid>[hidden],.empty-results[hidden],.card-visual img[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.directory-card a:focus-visible,.filter-chip:focus-visible{outline:3px solid var(--primary-color);outline-offset:3px}
@media(max-width:1100px){.directory-grid{grid-template-columns:minmax(0,1fr)}.nav{gap:16px;font-size:.85rem}}
@media(max-width:800px){.directory-grid{grid-template-columns:minmax(0,1fr);gap:18px}.portfolio-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card-copy{padding:18px}}
@media(max-width:520px){.directory-grid{gap:12px}.card-copy{padding:14px}.card-copy h3{font-size:.95rem}.card-copy>p{font-size:.78rem}.card-category{font-size:.65rem}.card-bottom{flex-wrap:wrap}.card-bottom>a{font-size:.75rem}.portfolio-grid{grid-template-columns:1fr}.catalog-addition .section-top h2{font-size:2rem}.filter-chip{font-size:.75rem;padding:8px 12px}.knowledge-addition{padding:50px 0}.portfolio-section h2{font-size:1.4rem}}
@media(prefers-reduced-motion:reduce){.directory-card{transition:none}.directory-card:hover{transform:none}}

/* Full original archives, with institution filters and R&D section navigation. */
.lecture-category-nav,.research-category-nav{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px;margin-bottom:20px}
.lecture-filter,.research-category-nav a{font:inherit;font-size:.85rem;padding:10px 17px;border:1px solid #ddd;border-radius:22px;background:#fff;color:var(--text-color);cursor:pointer}
.lecture-filter span,.research-category-nav span{margin-left:6px;font-size:.75rem;color:#777}
.lecture-filter.active,.lecture-filter:hover,.research-category-nav a:hover{background:var(--primary-color);border-color:var(--primary-color)}
#archive-count{font-size:.9rem;color:var(--text-muted);margin:20px 0}#lecture-list{scroll-margin-top:110px}
#lecture-list>[hidden],#lecture-empty[hidden]{display:none!important}
#lecture-empty{padding:25px;text-align:center;color:var(--text-muted)}
#papers,#patents,#websites{scroll-margin-top:100px}
.knowledge-addition .portfolio-grid{content-visibility:auto;contain-intrinsic-size:auto 800px}
@media(max-width:520px){.lecture-filter,.research-category-nav a{font-size:.78rem;padding:8px 12px}}