:root{--bg-base:#f3f4f6;--panel-white:#ffffff;--border-primary:#e5e7eb;--accent-cyan:#06b6d4;--accent-cyan-soft:rgba(6,182,212,0.1)}.grid-bg{background-image:linear-gradient(90deg,#e5e7eb 1px,transparent 0),linear-gradient(180deg,#e5e7eb 1px,transparent 0);background-size:20px 20px;opacity:.3;position:absolute;inset:0;pointer-events:none}.scrollbar-custom::-webkit-scrollbar{width:10px;height:10px}.scrollbar-custom::-webkit-scrollbar-track{background:transparent}.scrollbar-custom::-webkit-scrollbar-thumb{background:#d1d5db;border:2px solid transparent;background-clip:content-box}.panel-shadow{box-shadow:0 1px 3px 0 rgba(0,0,0,.1)}