@keyframes setup-appear {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@keyframes fade-in {
  from {
    opacity: 0;
    transform: scale(0.98);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes question-appear {
  from {
    opacity: 0;
    transform: translateY(20px) rotateX(10deg);
  }
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0);
  }
}

@keyframes choice-appear {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes correct-flash {
  0% {
    opacity: 0;
    transform: scale(0.1);
  }
  30% {
    opacity: 0.8;
  }
  100% {
    opacity: 0;
    transform: scale(1);
  }
}

@keyframes incorrect-flash {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 0;
  }
}

@keyframes correct-answer {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 rgba(46, 204, 113, 0);
    border-width: 2px;
  }
  10% {
    transform: scale(1.12);
  }
  20% {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(46, 204, 113, 0.8);
  }
  30% {
    transform: scale(1.08);
  }
  40% {
    transform: scale(1.03);
    box-shadow: 0 0 20px rgba(46, 204, 113, 0.6);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(46, 204, 113, 1);
    border-width: 3px;
  }
  60% {
    transform: scale(1.02);
  }
  70% {
    transform: scale(1.04);
    box-shadow: 0 0 25px rgba(46, 204, 113, 0.8);
  }
  80% {
    transform: scale(1.03) rotate(1deg);
  }
  90% {
    transform: scale(1.04) rotate(-1deg);
  }
  100% {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(46, 204, 113, 0.6);
    border-width: 3px;
  }
}

@keyframes incorrect-answer {
  0% {
    transform: translateX(0) scale(1);
    box-shadow: 0 0 0 rgba(231, 76, 60, 0);
  }
  10% {
    transform: translateX(-10px) rotate(-1deg) scale(1.03);
    box-shadow: 0 0 15px rgba(231, 76, 60, 0.5);
  }
  20% {
    transform: translateX(10px) rotate(1deg) scale(1.02);
    box-shadow: 0 0 20px rgba(231, 76, 60, 0.6);
  }
  30% {
    transform: translateX(-7px) rotate(-1.5deg) scale(1.03);
    box-shadow: 0 0 25px rgba(231, 76, 60, 0.7);
  }
  40% {
    transform: translateX(7px) rotate(1.5deg) scale(1.04);
    box-shadow: 0 0 30px rgba(231, 76, 60, 0.8);
  }
  50% {
    transform: translateX(-5px) rotate(-1deg) scale(1.02);
    box-shadow: 0 0 35px rgba(231, 76, 60, 1);
  }
  60% {
    transform: translateX(5px) rotate(1deg) scale(1.01);
    box-shadow: 0 0 30px rgba(231, 76, 60, 0.8);
  }
  70% {
    transform: translateX(-3px) rotate(-0.5deg) scale(1.02);
    box-shadow: 0 0 25px rgba(231, 76, 60, 0.7);
  }
  80% {
    transform: translateX(3px) rotate(0.5deg) scale(1.01);
    box-shadow: 0 0 20px rgba(231, 76, 60, 0.6);
  }
  90% {
    transform: translateX(-2px) scale(1.02);
    box-shadow: 0 0 15px rgba(231, 76, 60, 0.5);
  }
  100% {
    transform: translateX(0) scale(1.01);
    box-shadow: 0 0 20px rgba(231, 76, 60, 0.7);
  }
}

@keyframes pop-in {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}
@keyframes glow {
  0%,
  100% {
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.7);
  }
  50% {
    text-shadow: 0 0 20px rgba(255, 215, 0, 1);
  }
}
@keyframes rotate-gradient {
  0% {
    filter: hue-rotate(0deg);
  }
  100% {
    filter: hue-rotate(360deg);
  }
}

@keyframes confetti-fall {
  0% {
    transform: translateY(-100vh) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(360deg);
    opacity: 0;
  }
}
@keyframes pulse-button {
  0% {
    transform: scale(1);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  }
}
@keyframes sound-pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes appear-spin {
  from {
    opacity: 0;
    transform: translateX(-50%) rotate(-180deg) scale(0.5);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) rotate(0) scale(1);
  }
}

@keyframes team-appear {
  from {
    opacity: 0;
    transform: translateY(30px) rotateX(-20deg);
  }
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0);
  }
}
@keyframes team-turn-pulse {
  0% {
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
    border-color: #ffd700;
  }
  100% {
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.8);
    border-color: #ffcc00;
  }
}

@keyframes bounce {
  0% {
    transform: translateX(-50%) translateY(0);
  }
  100% {
    transform: translateX(-50%) translateY(-5px);
  }
}
@keyframes point-float {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  20% {
    opacity: 1;
  }
  80% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(-30px);
  }
}

@keyframes score-bump {
  0% {
    transform: scale(1);
    color: inherit;
  }
  10% {
    transform: scale(1.2);
  }
  30% {
    transform: scale(1.6);
    color: rgb(255, 215, 0) !important;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.9);
  }
  50% {
    transform: scale(1.4);
  }
  70% {
    transform: scale(1.2);
    color: rgb(255, 215, 0) !important;
  }
  90% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

/* Background gradient animation */
@keyframes gradientBG {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Modal and tutorial animations */
@keyframes modalSlideIn {
  0% {
    opacity: 0;
    transform: translateY(-40px) scale(0.9);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes gentleBounce {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-3px);
  }
  100% {
    transform: translateY(-2px);
  }
}

/* Loading animations */
@keyframes shimmer {
  0% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.6;
  }
}

.loading {
  animation: shimmer 2s ease-in-out infinite;
}

/* ========================================
   GAMEPLAY ANIMATIONS
   Professional Yet Playful Animations
   ======================================== */

/* Game Container */
@keyframes gameContainerAppear {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes backgroundFloat {
  0%,
  100% {
    transform: translateX(0) translateY(0);
  }
  25% {
    transform: translateX(5px) translateY(-5px);
  }
  50% {
    transform: translateX(-3px) translateY(5px);
  }
  75% {
    transform: translateX(3px) translateY(-3px);
  }
}

/* Question Number */
@keyframes questionNumberPulse {
  0% {
    opacity: 0;
    transform: scale(0.5) rotate(-180deg);
  }
  50% {
    opacity: 1;
    transform: scale(1.1) rotate(0deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}

@keyframes questionNumberRotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Question Card */
@keyframes questionCardSlide {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes questionShimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

/* Choices */
@keyframes choicesContainerAppear {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes choiceAppear {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes correctPulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
  100% {
    transform: scale(1.05);
  }
}

@keyframes incorrectShake {
  0%,
  100% {
    transform: translateX(0);
  }
  10%,
  30%,
  50%,
  70%,
  90% {
    transform: translateX(-3px);
  }
  20%,
  40%,
  60%,
  80% {
    transform: translateX(3px);
  }
}

/* Teams */
@keyframes teamsAppear {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes teamSlideUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes currentTeamPulse {
  0%,
  100% {
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.3),
      0 15px 35px rgba(0, 0, 0, 0.15);
  }
  50% {
    box-shadow: 0 0 40px rgba(245, 158, 11, 0.5), 0 20px 40px rgba(0, 0, 0, 0.2);
  }
}

@keyframes currentTeamBorder {
  0% {
    background: linear-gradient(45deg, #f59e0b, #d97706, #f59e0b);
  }
  25% {
    background: linear-gradient(45deg, #d97706, #f59e0b, #d97706);
  }
  50% {
    background: linear-gradient(45deg, #f59e0b, #d97706, #f59e0b);
  }
  75% {
    background: linear-gradient(45deg, #d97706, #f59e0b, #d97706);
  }
  100% {
    background: linear-gradient(45deg, #f59e0b, #d97706, #f59e0b);
  }
}

@keyframes turnIndicatorBounce {
  0% {
    transform: translateX(-50%) translateY(0);
  }
  100% {
    transform: translateX(-50%) translateY(-3px);
  }
}

@keyframes scoreIncrease {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes pointFloat {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  20% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(-30px);
  }
}

/* Game Over */
@keyframes gameOverPulse {
  0%,
  100% {
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.3);
  }
  50% {
    box-shadow: 0 12px 35px rgba(239, 68, 68, 0.5);
  }
}

/* Winner Screen */
@keyframes winnerAppear {
  0% {
    opacity: 0;
    transform: scale(0.8) translateY(50px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes trophyFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes winnerTitleGlow {
  0% {
    text-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
  }
  100% {
    text-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
  }
}

@keyframes crownFloat {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-5px) rotate(5deg);
  }
}

/* New Question Card and Choice Button Animations */
@keyframes questionBorderGlow {
  0%,
  100% {
    background: linear-gradient(45deg, #3b82f6, #8b5cf6, #06b6d4, #3b82f6);
  }
  25% {
    background: linear-gradient(45deg, #8b5cf6, #06b6d4, #3b82f6, #8b5cf6);
  }
  50% {
    background: linear-gradient(45deg, #06b6d4, #3b82f6, #8b5cf6, #06b6d4);
  }
  75% {
    background: linear-gradient(45deg, #3b82f6, #8b5cf6, #06b6d4, #3b82f6);
  }
}

@keyframes choiceBorderGlow {
  0%,
  100% {
    background: linear-gradient(45deg, #22c55e, #3b82f6, #8b5cf6, #22c55e);
  }
  33% {
    background: linear-gradient(45deg, #3b82f6, #8b5cf6, #22c55e, #3b82f6);
  }
  66% {
    background: linear-gradient(45deg, #8b5cf6, #22c55e, #3b82f6, #8b5cf6);
  }
}
/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}