@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --bg-primary: #0b0f19;
  --bg-surface: #111827;
  --bg-surface-elevated: #1e293b;
  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-violet: #8b5cf6;
}

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: #080c14;
  color: #f1f5f9;
  overflow-x: hidden;
}

code, pre, .font-mono {
  font-family: 'JetBrains Mono', monospace;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

::-webkit-scrollbar-track {
  background: #0b0f19;
}

::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
  background: #334155;
}

/* Glassmorphism Card */
.glass-panel {
  background: rgba(17, 24, 39, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.glass-card {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-card:hover {
  background: rgba(30, 41, 59, 0.7);
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -10px rgba(0, 0, 0, 0.5), 0 0 15px rgba(56, 189, 248, 0.15);
}

/* Glowing Border Animation */
.glow-cyan {
  box-shadow: 0 0 20px -3px rgba(6, 182, 212, 0.25);
}

.glow-emerald {
  box-shadow: 0 0 20px -3px rgba(16, 185, 129, 0.25);
}

/* Card Step Animation */
.fade-in-slide {
  animation: fadeInSlide 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInSlide {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Option Button States */
.option-btn {
  transition: all 0.15s ease-out;
}

.option-btn:hover:not(:disabled) {
  border-color: #38bdf8;
  background-color: rgba(14, 165, 233, 0.1);
  transform: translateX(4px);
}

.option-correct {
  background-color: rgba(16, 185, 129, 0.15) !important;
  border-color: #10b981 !important;
  color: #6ee7b7 !important;
}

.option-wrong {
  background-color: rgba(244, 63, 94, 0.15) !important;
  border-color: #f43f5e !important;
  color: #fda4af !important;
}