body { background: #2a0b0b; }
    .card-shadow { box-shadow: 0 16px 40px rgba(10, 10, 10, 0.35); }
    .soft-scroll::-webkit-scrollbar { width: 8px; height: 8px; }
    .soft-scroll::-webkit-scrollbar-thumb { background: #7f1d1d; border-radius: 9999px; }
    .soft-scroll::-webkit-scrollbar-track { background: #3f0d0d; }
    .sticky-head thead th { position: sticky; top: 0; z-index: 2; }
    .heat-cell { min-width: 88px; text-align: center; font-size: 12px; padding: 8px 6px; }