body {
  font-family: 'Inter', sans-serif;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#question-container button {
  transition: all 0.25s ease;
}

#mobileMenu   { transition: transform .4s cubic-bezier(.4,0,.2,1); }
#sheetPanel   { transition: transform .5s cubic-bezier(.4,0,.2,1); }
#overlayMain  { transition: opacity .3s; }

/* MOBILE UCHUN BADGE */
#badge {
  line-height: 1.1;
  letter-spacing: -2px;
  text-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

/* MUSHKAK (Fireworks) */
.fireworks {
  position: relative;
  overflow: hidden;
}
.fireworks::before,
.fireworks::after {
  content: '🎉';
  position: absolute;
  font-size: 3rem;
  animation: firework 2s ease-out infinite;
  opacity: 0;
}
.fireworks::before  { left: 10%; top: 20%; animation-delay: 0.2s; }
.fireworks::after   { right: 10%; top: 30%; animation-delay: 0.8s; }

@keyframes firework {
  0%   { transform: translateY(0) scale(0); opacity: 0; }
  50%  { opacity: 1; }
  100% { transform: translateY(-100px) scale(1.5); opacity: 0; }
}

/* MOBILE OPTIMIZATSIYA */
@media (max-width: 640px) {
  #results div {
    padding: 2rem 1rem !important;
  }
  #iqScore { font-size: 4rem !important; }
  #percentile { font-size: 1.5rem !important; }
  #downloadBtn { padding: 1rem 2rem; font-size: 1.25rem; }
}