body {
      background-color: #f8fafc;
      background-image: radial-gradient(rgba(15, 23, 42, 0.05) 1px, transparent 1px);
      background-size: 24px 24px;
    }
    .radar-polygon { transition: points 0.5s ease-in-out, fill 0.3s ease, stroke 0.3s ease; }
    .no-scrollbar::-webkit-scrollbar { display: none; }
    .no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }
    .panel-transition { transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }