app/globals.css

@tailwind base;
@tailwind components;
@tailwind utilities;

/* ── Hide scrollbar but keep scroll functionality ── */
.scrollbar-hide {
  -ms-overflow-style: none;  /* IE/Edge */
  scrollbar-width: none;     /* Firefox */
}
.scrollbar-hide::-webkit-scrollbar {
  display: none;             /* Chrome/Safari/Opera */
}

@import url("https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&family=Open+Sans:wght@400;500;600;700&display=swap");

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Open Sans", sans-serif;
}

/* Custom utility classes */
@layer utilities {
  .text-shadow-sm {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  }
}

/* ── Particle animations ── */
@keyframes float-up {
  0% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) translateX(var(--drift, 20px)) scale(0.4);
    opacity: 0;
  }
}

@keyframes shimmer {
  0%, 100% {
    opacity: 0.3;
    transform: scale(0.8);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
}

@keyframes drift {
  0% {
    transform: translateY(0) translateX(0);
    opacity: 0;
  }
  15% {
    opacity: 0.7;
  }
  85% {
    opacity: 0.7;
  }
  100% {
    transform: translateY(var(--float-y, -80px)) translateX(var(--float-x, 30px));
    opacity: 0;
  }
}

.particle {
  animation: float-up var(--duration, 12s) var(--delay, 0s) infinite ease-in-out;
}

.sparkle {
  animation: shimmer var(--duration, 3s) var(--delay, 0s) infinite ease-in-out;
}

.floater {
  animation: drift var(--duration, 8s) var(--delay, 0s) infinite ease-in-out;
}

/* ── GameButton pulse ── */
@keyframes pulse-subtle {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 4px 14px rgba(88, 204, 2, 0.3);
  }
  50% {
    transform: scale(1.03);
    box-shadow: 0 6px 20px rgba(88, 204, 2, 0.5);
  }
}

.animate-pulse-subtle {
  animation: pulse-subtle 2s ease-in-out infinite;
}

/* ── Shake animation (wrong answer) ── */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

.animate-shake {
  animation: shake 0.4s ease-in-out;
}

/* ── XP bar shimmer ── */
@keyframes shimmer-bar {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}

.animate-shimmer-bar {
  animation: shimmer-bar 1.5s ease-in-out infinite;
}