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.75rem;border-radius:20px;font-size:.8rem;font-weight:600;white-space:nowrap}.library-item-description{color:var(--text-light);font-size:.9rem;line-height:1.5;margin-bottom:1rem}.library-item-concepts{margin-bottom:1rem}.library-item-concepts strong{display:block;font-size:.85rem;color:var(--text-dark);margin-bottom:.5rem}.concepts-list{display:flex;flex-wrap:wrap;gap:.5rem}.concept-tag{background:var(--secondary-color);color:var(--text-dark);padding:.25rem .75rem;border-radius:15px;font-size:.75rem;font-weight:500;border:1px solid var(--border-color)}.library-item-footer{display:flex;justify-content:space-between;align-items:center;padding-top:1rem;border-top:1px solid var(--border-color)}.library-item-date{font-size:.8rem;color:var(--text-light)}.empty-state{text-align:center;padding:3rem;color:var(--text-light)}.empty-state h3{font-size:1.25rem;margin-bottom:.5rem;color:var(--text-dark)}.empty-state p{font-size:.95rem}@media (max-width: 768px){.tabs{flex-direction:column;gap:.25rem}.tab{width:100%;text-align:center}.tab-active:after{display:none}.library-item-header{flex-direction:column;gap:.5rem}.library-item-title{margin-right:0}.library-item-count{align-self:flex-start}.library-item-footer{flex-direction:column;gap:.5rem;align-items:flex-start}}