.logo { margin: 0; line-height: 0; min-height: 76px; }
.logo-svg { height: 76px; width: auto; display: block; filter: drop-shadow(0 6px 8px rgba(40, 20, 0, .18)); }
.logo-svg .sparkle { transform-box: fill-box; transform-origin: center; animation: twinkle 2.4s ease-in-out infinite; }
@keyframes twinkle { 0%, 70%, 100% { opacity: 0; } 80% { opacity: 1; } }

@media (max-width: 640px) {
  .logo { min-height: 52px; }
  .logo-svg { height: 52px; }
}