.difficulty-picker[data-astro-cid-h67f6mmt]{overflow-x:auto;-webkit-overflow-scrolling:touch}table[data-astro-cid-h67f6mmt]{border-collapse:collapse;font-size:14px}th[data-astro-cid-h67f6mmt],td[data-astro-cid-h67f6mmt]{padding:var(--space-2) var(--space-3);text-align:center}th[data-astro-cid-h67f6mmt]{font-weight:600;color:var(--text-secondary);font-size:12px;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border-subtle)}.size-label[data-astro-cid-h67f6mmt]{font-family:var(--font-mono);font-size:13px;color:var(--text-secondary);text-align:left;padding-right:var(--space-4);white-space:nowrap}.pick-btn[data-astro-cid-h67f6mmt]{display:inline-block;padding:var(--space-2) var(--space-5);background:var(--brand-primary);color:var(--text-inverse);border-radius:var(--radius-full);font-size:12px;font-weight:600;text-decoration:none;transition:background var(--transition-fast),transform var(--transition-fast);white-space:nowrap}.pick-btn[data-astro-cid-h67f6mmt][data-diff=easy]{background:#10b981}.pick-btn[data-astro-cid-h67f6mmt][data-diff=normal]{background:#2563eb}.pick-btn[data-astro-cid-h67f6mmt][data-diff=hard]{background:#f97316}.pick-btn[data-astro-cid-h67f6mmt][data-diff=expert]{background:#ef4444}.pick-btn[data-astro-cid-h67f6mmt]:hover{filter:brightness(1.1);transform:translateY(-1px);text-decoration:none;color:var(--text-inverse)}tr[data-astro-cid-h67f6mmt]:hover td[data-astro-cid-h67f6mmt]{background:var(--surface-secondary)}.hub-hero[data-astro-cid-u5ttbnfz]{margin-bottom:var(--space-12)}.hub-hero[data-astro-cid-u5ttbnfz] h1[data-astro-cid-u5ttbnfz]{font-size:clamp(24px,4vw,40px);margin-bottom:var(--space-4)}.hub-desc[data-astro-cid-u5ttbnfz]{font-size:17px;color:var(--text-secondary);max-width:640px;margin-bottom:var(--space-4)}.hub-stats[data-astro-cid-u5ttbnfz]{display:flex;gap:var(--space-2);flex-wrap:wrap}.badge[data-astro-cid-u5ttbnfz]{padding:4px 12px;background:var(--surface-secondary);border-radius:var(--radius-full);font-size:13px;font-weight:500;color:var(--text-secondary)}.hub-play[data-astro-cid-u5ttbnfz]{margin-bottom:var(--space-12)}.hub-play[data-astro-cid-u5ttbnfz] h2[data-astro-cid-u5ttbnfz],.hub-about[data-astro-cid-u5ttbnfz] h2[data-astro-cid-u5ttbnfz],.hub-related[data-astro-cid-u5ttbnfz] h2[data-astro-cid-u5ttbnfz]{font-size:20px;margin-bottom:var(--space-6)}.hub-about[data-astro-cid-u5ttbnfz]{max-width:720px;margin-bottom:var(--space-12)}.hub-prose[data-astro-cid-u5ttbnfz] p{color:var(--text-secondary);font-size:15px;line-height:1.7;margin-bottom:var(--space-4)}.hub-prose[data-astro-cid-u5ttbnfz] p:last-child{margin-bottom:0}.hub-faqs[data-astro-cid-u5ttbnfz]{margin-top:var(--space-8)}.hub-faqs[data-astro-cid-u5ttbnfz] h3[data-astro-cid-u5ttbnfz]{font-size:16px;margin-bottom:var(--space-4)}.faq-item[data-astro-cid-u5ttbnfz]{border-top:1px solid var(--border-subtle);padding:var(--space-3) 0}.faq-item[data-astro-cid-u5ttbnfz] summary[data-astro-cid-u5ttbnfz]{cursor:pointer;font-weight:500;font-size:15px;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:var(--space-2)}.faq-item[data-astro-cid-u5ttbnfz] summary[data-astro-cid-u5ttbnfz]:after{content:"+";font-size:18px;color:var(--text-tertiary);flex-shrink:0;transition:transform var(--transition-fast);display:inline-block}.faq-item[data-astro-cid-u5ttbnfz][open] summary[data-astro-cid-u5ttbnfz]:after{transform:rotate(45deg)}.faq-item[data-astro-cid-u5ttbnfz] p[data-astro-cid-u5ttbnfz]{margin-top:var(--space-3);color:var(--text-secondary);font-size:14px;line-height:1.7;animation:faq-open .2s ease}@keyframes faq-open{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.hub-links[data-astro-cid-u5ttbnfz]{margin-top:var(--space-6);display:flex;gap:var(--space-3);flex-wrap:wrap}.hub-links[data-astro-cid-u5ttbnfz] a[data-astro-cid-u5ttbnfz]{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:500;color:var(--brand-primary);text-decoration:none;padding:var(--space-2) var(--space-4);background:color-mix(in srgb,var(--brand-primary) 8%,transparent);border-radius:var(--radius-full);transition:background var(--transition-fast)}.hub-links[data-astro-cid-u5ttbnfz] a[data-astro-cid-u5ttbnfz]:hover{background:color-mix(in srgb,var(--brand-primary) 15%,transparent);text-decoration:none}.hub-related[data-astro-cid-u5ttbnfz]{margin-bottom:var(--space-12)}.related-grid[data-astro-cid-u5ttbnfz]{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:var(--space-3)}