::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(99,102,241,0.3); border-radius: 3px; }
* { scrollbar-width: thin; scrollbar-color: rgba(99,102,241,0.3) transparent; }
::selection { background: rgba(99,102,241,0.3); }

.glass {
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.06);
}
.light .glass {
  background: rgba(0,0,0,0.02);
  border: 1px solid rgba(0,0,0,0.08);
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Range slider */
input[type=range] { -webkit-appearance: none; appearance: none; background: transparent; width: 100%; cursor: pointer; }
input[type=range]::-webkit-slider-track { height: 8px; border-radius: 4px; background: rgba(99,102,241,0.2); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; height: 28px; width: 28px; border-radius: 50%; background: #6366f1; margin-top: -10px; box-shadow: 0 0 12px rgba(99,102,241,0.5); transition: transform 0.15s; }
input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.15); }
input[type=range]::-moz-range-track { height: 8px; border-radius: 4px; background: rgba(99,102,241,0.2); border: none; }
input[type=range]::-moz-range-thumb { height: 28px; width: 28px; border-radius: 50%; background: #6366f1; border: none; box-shadow: 0 0 12px rgba(99,102,241,0.5); }
.light input[type=range]::-webkit-slider-track { background: rgba(99,102,241,0.15); }
.light input[type=range]::-moz-range-track { background: rgba(99,102,241,0.15); }

/* Confetti */
@keyframes confetti-fall {
  0% { transform: translateY(0) rotate(0deg) scale(1); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg) scale(0.5); opacity: 0; }
}
.confetti {
  position: fixed;
  top: -10px;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  animation: confetti-fall 3s ease-in forwards;
  pointer-events: none;
  z-index: 9999;
}

/* Progress bar pulse */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 4px rgba(99,102,241,0.3); }
  50% { box-shadow: 0 0 12px rgba(99,102,241,0.6); }
}
.progress-bar { animation: pulse-glow 2s ease-in-out infinite; }

/* Screen transitions */
.screen-enter { animation: slideUp 0.3s ease-out; }
@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}