.ms-workspace .hero{background:transparent;padding:0.25rem 0 1rem;text-align:left;color:var(--ms-ink)}.ms-workspace .hero-title{margin:0 0 0.5rem;font-family:var(--ms-font-serif,"Instrument Serif",Georgia,serif);font-size:clamp(1.7rem,3.2vw,2.3rem);font-weight:800;line-height:1.12;color:var(--ms-ink)}.ms-workspace .hero-subtitle{margin:0;max-width:780px;font-size:1.02rem;line-height:1.55;color:var(--ms-ink-soft);opacity:1}.ms-workspace .page-section{padding:1.1rem 0}.ms-workspace .section-title{margin:0 0 0.85rem;font-family:var(--ms-font-serif,"Instrument Serif",Georgia,serif);font-size:1.35rem;font-weight:700;color:var(--ms-ink)}.ms-workspace .grid-3{grid-template-columns:repeat(auto-fill,minmax(232px,1fr))}.ms-workspace .card-clickable{cursor:pointer;text-decoration:none;display:block;color:inherit}.ms-workspace .card-clickable:hover{border-color:var(--ms-accent);transform:translateY(-2px);box-shadow:var(--ms-shadow-lg,0 8px 22px rgba(28,25,23,0.12))}.ms-workspace .set-card{display:flex;flex-direction:column;gap:0.7rem;height:100%}.ms-workspace .set-card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:0.5rem}.ms-workspace .set-card-title{font-size:1.02rem;font-weight:700;line-height:1.3;color:var(--ms-ink)}.ms-workspace .set-card-badge{flex-shrink:0;font-size:0.66rem;font-weight:700;letter-spacing:0.04em;text-transform:uppercase;padding:0.18rem 0.5rem;border-radius:999px;white-space:nowrap}.ms-workspace .set-card-meta{display:flex;flex-wrap:wrap;gap:0.4rem 0.9rem;font-size:0.8rem;color:var(--ms-muted)}.ms-workspace .set-card-meta-item{display:flex;align-items:center;gap:0.25rem}.ms-workspace .spinner-border{display:inline-block;width:2rem;height:2rem;border:3px solid var(--ms-line-strong);border-top-color:var(--ms-accent);border-radius:50%;animation:qm-hub-spin 0.7s linear infinite}@keyframes qm-hub-spin{to{transform:rotate(360deg)}}.ms-workspace .text-lg{font-size:1.05rem}.ms-workspace .text-sm{font-size:0.85rem}.ms-workspace .text-center{text-align:center}.ms-workspace .text-primary{color:var(--ms-ink)}.ms-workspace .text-secondary{color:var(--ms-ink-soft)}.ms-workspace .text-muted{color:var(--ms-muted)}.ms-workspace .text-accent{color:var(--ms-accent)}.ms-workspace .mt-2{margin-top:0.5rem}.ms-workspace .mt-4{margin-top:1rem}.ms-workspace .mt-8{margin-top:2rem}.ms-workspace .filter-label,.ms-workspace .secondary-label{color:var(--ms-ink-soft)}.ms-workspace .filter-count,.ms-workspace .chip-count{color:var(--ms-muted)}.ms-workspace .diff-btn,.ms-workspace .filter-btn,.ms-workspace .filter-chip,.ms-workspace .toggle-chip{background:var(--ms-panel-bg);border:1.5px solid var(--ms-line-strong);color:var(--ms-ink-soft)}.ms-workspace .diff-btn.active,.ms-workspace .filter-btn.active{background:linear-gradient(135deg,var(--ms-cta-start,#15803d),var(--ms-cta-end,#22c55e));border-color:var(--ms-accent);color:#fff}.ms-workspace .difficulty-filter-row{background:var(--ms-panel-bg-soft);border:1px solid var(--ms-line)}