:root{--color-primary:#3b82f6;--color-primary-hover:#2563eb;--color-primary-focus:rgba(59,130,246,.5);--color-secondary:#6c757d;--color-secondary-hover:#5a6268;--color-danger:#ef4444;--color-danger-hover:#dc2626;--color-danger-focus:rgba(239,68,68,.1);--color-success:#28a745;--color-text:#374151;--color-text-muted:#6b7280;--color-bg:#fff;--color-bg-muted:#f9fafb;--color-bg-sidebar:#f4f4f4;--color-border:#d1d5db;--color-border-light:#e5e7eb;--font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--font-size-sm:0.75rem;--font-size-base:0.875rem;--font-size-lg:1rem;--line-height-base:1.25rem;--spacing-xs:0.25rem;--spacing-sm:0.5rem;--spacing-md:0.75rem;--spacing-lg:1rem;--spacing-xl:1.5rem;--border-radius:0.375rem;--shadow:0 2px 10px rgba(0,0,0,.1);--shadow-lg:0 10px 25px rgba(0,0,0,.15);--transition:all 0.2s ease}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}:root{--color-primary:#1a56db;--color-primary-hover:#1648b8;--color-success:#059669;--color-danger:#dc2626;--color-warning:#d97706;--color-background:#f8fafc;--color-surface:#fff;--color-text:#1e293b;--color-text-muted:#64748b;--color-border:#e2e8f0;--font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--radius:8px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);color:var(--color-text);background-color:var(--color-background);line-height:1.6}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.responsive-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:1rem;gap:1rem}.responsive-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:1rem;gap:1rem}.responsive-actions{display:flex;gap:.75rem;flex-wrap:wrap}.tab-scroll{overflow-x:auto;padding-bottom:.25rem}@media (max-width:1024px){.responsive-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:768px){.responsive-grid-2,.responsive-grid-3{grid-template-columns:1fr}}