:root{--bg-primary:#f8fafc;--bg-secondary:#fff;--text-primary:#0f172a;--text-secondary:#475569;--accent-primary:#2563eb;--accent-glow:#2563eb1a;--border-color:#e2e8f0;--card-shadow:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008;--card-hover-shadow:0 10px 15px -3px #00000014, 0 4px 6px -2px #0000000a}body{background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;margin:0;padding:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}header{background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:10;padding:1rem 2rem;position:sticky;top:0}.nav-content{justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;display:flex}.container{max-width:1200px;margin:3rem auto;padding:0 2rem}.subtitle{color:var(--text-secondary);margin-bottom:2rem;font-size:1.1rem}.hub-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;display:grid}.hub-card{background-color:var(--bg-secondary);border:1px solid var(--border-color);color:inherit;box-shadow:var(--card-shadow);border-radius:12px;padding:1.5rem;text-decoration:none;transition:transform .2s,box-shadow .2s,border-color .2s}.hub-card:hover{box-shadow:var(--card-hover-shadow);border-color:var(--accent-primary);transform:translateY(-2px)}.hub-card h3{color:var(--text-primary);margin-top:0}.hub-card p{color:var(--text-secondary);margin-bottom:0;font-size:.95rem}