:root{--bg-color:#0f111a;--panel-bg:#1a1d2d;--text-primary:#e2e8f0;--text-secondary:#94a3b8;--accent:#3b82f6;--accent-hover:#2563eb;--cell-default:#2d3748;--cell-comparing:#facc15;--cell-swapping:#ef4444;--cell-writing:#f97316;--cell-shifting:#8b5cf6;--cell-selected:#0ea5e9;--cell-pivot:#d946ef;--cell-floating:#22d3ee;--cell-sorted:#10b981;--border-radius-sm:4px;--border-radius-md:8px;--border-radius-lg:12px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);flex-direction:column;min-height:100vh;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;display:flex}#root{flex-direction:column;flex:1;display:flex}button{cursor:pointer;border-radius:var(--border-radius-md);background-color:var(--accent);color:#fff;border:none;padding:8px 16px;font-weight:600;transition:background-color .2s,transform 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