/* Modern Premium Quiz Styling */
:root {
  --quiz-primary: #4a148c; /* Dark purple */
  --quiz-secondary: #ff8800; /* Orange */
  --quiz-accent: #6a1b9a; /* Lighter purple */
  --quiz-text: #ffffff;
  --quiz-background: rgba(0, 0, 0, 0.7);
  --quiz-success: #00e676; /* Vibrant green */
  --quiz-error: #ff1744; /* Vibrant red */
  --quiz-neutral: #9e9e9e;
  --quiz-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  --quiz-transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  
  /* Kurzgesagt-inspired vibrant color palette */
  --k-turquoise: #00b9ae;
  --k-blue: #0083c7;
  --k-purple: #8246af;
  --k-pink: #fb3880;
  --k-orange: #ff8e31;
  --k-yellow: #ffde17;
  --k-red: #ff3838;
  --k-green: #25d380;
}

/* Quiz Container */
.quiz-container {
  max-width: 800px;
  margin: 2rem auto;
  background-color: var(--quiz-background);
  border-radius: 12px;
  box-shadow: var(--quiz-shadow);
  padding: 2rem;
  color: var(--quiz-text);
  position: relative;
  overflow: hidden;
  animation: fadeIn 0.5s ease-out;
}

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

/* Quiz Header */
#quiz-title {
  font-size: 2.2rem;
  text-align: center;
  margin-bottom: 2rem;
  color: var(--quiz-text);
  font-weight: 700;
  position: relative;
}

/* Remove the color spectrum (::after pseudo-element) */
#quiz-title::after {
  display: none;
}

/* Progress Bar */
.quiz-progress {
  height: 8px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  margin-bottom: 2rem;
  overflow: hidden;
}

.quiz-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--quiz-primary), var(--quiz-secondary));
  border-radius: 4px;
  transition: width 0.5s ease;
}

/* Question Container */
.question-container {
  margin-bottom: 2rem;
  animation: slideIn 0.4s ease-out;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

.question-text {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  line-height: 1.5;
  font-weight: 500;
}

/* Answer Options */
.answer-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.answer-option {
  background-color: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 1rem;
  cursor: pointer;
  transition: var(--quiz-transition);
  position: relative;
  overflow: hidden;
}

.answer-option:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}

.answer-option.selected {
  border-color: var(--quiz-secondary);
  background-color: rgba(255, 136, 0, 0.2);
}

.answer-option.correct {
  border-color: var(--quiz-success);
  background-color: rgba(76, 175, 80, 0.2);
}

.answer-option.incorrect {
  border-color: var(--quiz-error);
  background-color: rgba(244, 67, 54, 0.2);
}

.answer-option input[type="radio"] {
  position: absolute;
  opacity: 0;
}

.answer-option label {
  display: flex;
  align-items: center;
  width: 100%;
  cursor: pointer;
  font-weight: 500;
}

.answer-option .option-marker {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  margin-right: 1rem;
  font-weight: bold;
  transition: var(--quiz-transition);
}

.answer-option.selected .option-marker {
  background-color: var(--quiz-secondary);
}

.answer-option.correct .option-marker {
  background-color: var(--quiz-success);
}

.answer-option.incorrect .option-marker {
  background-color: var(--quiz-error);
}

/* Quiz Controls */
.quiz-controls {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
}

.quiz-button {
  background: linear-gradient(135deg, #ff8800, #ff6600);
  color: white !important;
  border: none;
  border-radius: 12px;
  padding: 10px 20px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 0 #cc5500, 0 6px 15px rgba(0, 0, 0, 0.2);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 1px;
  min-width: 120px;
  text-align: center;
}

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

.quiz-button:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 6px 0 #cc5500, 0 8px 20px rgba(0, 0, 0, 0.3);
}

.quiz-button:active:not(:disabled) {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #cc5500, 0 4px 8px rgba(0, 0, 0, 0.2);
}

.quiz-button.primary {
  background: linear-gradient(135deg, #ff8800, #ff6600);
  color: white !important;
}

.quiz-button.secondary {
  background-color: transparent;
  color: var(--quiz-text);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.quiz-button.secondary:hover:not(:disabled) {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
}

/* Quiz Results */
#quiz-results {
  text-align: center;
  animation: fadeIn 0.5s ease-out; /* Restore animation */
}

.results-header {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--quiz-text);
  opacity: 0; /* Start hidden, JS will control appearance */
  transition: opacity 0.5s ease-out; /* Add transition to prevent flickering */
}

.score-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 2rem 0;
  position: relative;
  opacity: 0; /* Start hidden, JS will control appearance */
  transition: opacity 0.5s ease-out; /* Add transition to prevent flickering */
}

.score-circle {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
  animation: fadeIn 0.5s ease-out;
  overflow: visible;
  z-index: 2;
}

/* Remove all ::before pseudo-element styling */
.score-circle::before {
  content: none;
  display: none;
}

.score-circle.animate::before {
  content: none;
  display: none;
}

/* SVG styling for the progress circle */
.score-circle svg {
  position: absolute;
  top: -8px;
  left: -8px;
  width: calc(100% + 16px);
  height: calc(100% + 16px);
  transform: rotate(-90deg);
  z-index: 1;
  filter: drop-shadow(0 0 3px rgba(255, 136, 0, 0.3));
}

.score-circle circle {
  fill: transparent;
  stroke: var(--quiz-secondary);
  stroke-width: 8px;
  transition: stroke-dasharray 0.1s linear;
  stroke-linecap: round;
}

.score-value {
  font-size: 3rem;
  font-weight: bold;
  color: var(--quiz-text);
  z-index: 2;
  transition: color 0.3s ease;
}

.score-label {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
}

.feedback-container {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
  opacity: 0; /* Start hidden, JS will control appearance */
  transition: opacity 0.5s ease-out; /* Smooth transition without animation delay */
}

/* Remove the colored gradient background */
.feedback-container::before {
  display: none;
}

.feedback-message {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  text-align: center;
  font-weight: 600;
  color: #ffffff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  opacity: 0; /* Start hidden, JS will control appearance */
  transition: opacity 0.5s ease-out; /* Smooth transition without animation delay */
}

/* Mission-style feedback grid */
.feedback-grid-wrapper {
  display: flex;
  justify-content: center;
  width: 100%;
  opacity: 0; /* Start hidden, JS will control appearance */
  transition: opacity 0.5s ease-out; /* Smooth transition without animation delay */
}

.feedback-grid {
  display: grid;
  grid-template-columns: repeat(5, 100px); /* Fixed 5 columns */
  gap: 12px;
  margin-top: 1.5rem;
  max-width: 540px; /* Limit width to 5 columns + gaps */
  justify-content: center;
}

/* Remove scrollbar styling for the feedback grid since we don't need it anymore */
.feedback-grid::-webkit-scrollbar,
.feedback-grid::-webkit-scrollbar-track,
.feedback-grid::-webkit-scrollbar-thumb,
.feedback-grid::-webkit-scrollbar-thumb:hover {
  display: none;
}

.mission-item {
  position: relative;
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 1.2rem 0.8rem;
  text-align: center;
  transition: all 0.3s ease;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  cursor: pointer;
}

.mission-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--quiz-neutral);
  opacity: 0.7;
}

.mission-item.correct::before {
  background-color: var(--quiz-success);
}

.mission-item.incorrect::before {
  background-color: var(--quiz-error);
}

.mission-number {
  font-size: 1.8rem;
  font-weight: bold;
  margin-bottom: 0.4rem;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.mission-status {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.mission-item.correct .mission-status {
  color: #4caf50;
}

.mission-item.incorrect .mission-status {
  color: #f44336;
}

/* Remove the mission-icon styles */
.mission-icon {
  display: none;
}

.mission-item.correct .mission-icon {
  display: none;
}

.mission-item.incorrect .mission-icon {
  display: none;
}

.mission-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.mission-item.correct:hover {
  background-color: rgba(76, 175, 80, 0.2);
}

.mission-item.incorrect:hover {
  background-color: rgba(244, 67, 54, 0.2);
}

/* Animation for mission items */
@keyframes missionAppear {
  0% {
    opacity: 0;
    transform: scale(0.5) translateY(20px);
  }
  60% {
    transform: scale(1.05) translateY(-5px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.mission-item {
  animation: missionAppear 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  animation-delay: calc(var(--item-index) * 0.1s);
  opacity: 0;
}

/* Responsive adjustments */
@media screen and (max-width: 768px) {
  .feedback-grid {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 10px;
  }
  
  .mission-number {
    font-size: 1.5rem;
  }
  
  .mission-status {
    font-size: 0.8rem;
  }
}

/* Animations */
.fade-enter {
  opacity: 0;
}

.fade-enter-active {
  opacity: 1;
  transition: opacity 0.5s;
}

.fade-exit {
  opacity: 1;
}

.fade-exit-active {
  opacity: 0;
  transition: opacity 0.5s;
}

/* Confetti Animation for Success */
.confetti {
  position: absolute;
  width: 10px;
  height: 10px;
  background-color: #f0f;
  opacity: 0;
}

@keyframes confetti-fall {
  0% { transform: translateY(-100px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(360deg); opacity: 0; }
}

/* Responsive Design */
@media screen and (max-width: 768px) {
  .quiz-container {
    margin: 1rem;
    padding: 1.5rem;
  }
  
  #quiz-title {
    font-size: 1.8rem;
  }
  
  .question-text {
    font-size: 1.2rem;
  }
  
  .quiz-controls {
    flex-direction: column;
    gap: 1rem;
  }
  
  .quiz-button {
    width: 100%;
  }
  
  .score-circle {
    width: 120px;
    height: 120px;
  }
  
  .score-value {
    font-size: 2.5rem;
  }
}

/* For KaTeX Support */
.katex {
  font-size: 1.1em !important;
}

/* Hidden Class */
.hidden {
  display: none !important;
}

.mission-item::after {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border-radius: 10px;
  background: transparent;
  z-index: -1;
  transition: box-shadow 0.3s ease;
}

.mission-item:hover::after {
  box-shadow: 0 0 15px rgba(76, 175, 80, 0.4);
}

.mission-item.incorrect:hover::after {
  box-shadow: 0 0 15px rgba(244, 67, 54, 0.4);
}

.mission-item.correct {
  background-color: rgba(76, 175, 80, 0.15);
  border: 1px solid rgba(76, 175, 80, 0.3);
}

.mission-item.incorrect {
  background-color: rgba(244, 67, 54, 0.15);
  border: 1px solid rgba(244, 67, 54, 0.3);
}

#quiz-results .quiz-controls {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  opacity: 0; /* Start hidden, JS will control appearance */
  transition: opacity 0.5s ease-out;
}

/* Cartoonish star burst animation for high scores - with more vibrant colors */
@keyframes starBurst {
  0% {
    box-shadow: 0 0 0 0 var(--k-orange), 0 0 0 0 var(--k-green), 0 0 0 0 var(--k-blue), 0 0 0 0 var(--k-pink);
    transform: scale(1);
  }
  25% {
    box-shadow: 0 0 0 15px var(--k-orange), 0 0 0 25px var(--k-green), 0 0 0 35px var(--k-blue), 0 0 0 45px var(--k-pink);
    transform: scale(1.1);
  }
  50% {
    box-shadow: 0 0 0 20px var(--k-orange), 0 0 0 30px var(--k-green), 0 0 0 40px var(--k-blue), 0 0 0 50px var(--k-pink);
    transform: scale(1.05);
  }
  100% {
    box-shadow: 0 0 0 25px transparent, 0 0 0 45px transparent, 0 0 0 65px transparent, 0 0 0 85px transparent;
    transform: scale(1);
  }
}

/* Replace celebration stars with exploding square flares */
.flare-square {
  position: absolute;
  width: 30px;
  height: 30px;
  opacity: 0;
  z-index: 1;
  animation: flareExplode 1.4s cubic-bezier(0.215, 0.61, 0.355, 1) forwards;
  transform-origin: center center;
}

@keyframes flareExplode {
  0% {
    opacity: 0;
    transform: translate(var(--sx), var(--sy)) scale(0) rotate(0deg);
  }
  15% {
    opacity: 1;
    transform: translate(calc(var(--sx) * 0.8), calc(var(--sy) * 0.8)) scale(0.6) rotate(20deg);
  }
  100% {
    opacity: 0;
    transform: translate(var(--tx), var(--ty)) scale(1) rotate(180deg);
  }
}

/* Comic explosion particles for high scores - updated with vibrant colors and gravity */
.score-particle {
  position: absolute;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  animation: particleExplode 1.4s cubic-bezier(0.215, 0.61, 0.355, 1) forwards;
  z-index: 1;
  transform-origin: center center;
}

@keyframes particleExplode {
  0% {
    transform: translate(var(--sx), var(--sy)) scale(0);
    opacity: 0;
  }
  15% {
    transform: translate(calc(var(--sx) * 0.8), calc(var(--sy) * 0.8)) scale(0.6);
    opacity: 1;
  }
  100% {
    transform: translate(var(--tx), var(--ty)) scale(1);
    opacity: 0;
  }
}

/* Progress bar tip square particles */
.progress-particle-square {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 0; /* Square shape */
  opacity: 0;
  z-index: 5; /* Higher z-index to ensure visibility */
  animation: progressSquare 1s ease-out forwards;
  transform-origin: center center;
  pointer-events: none; /* Ensure particles don't interfere with interactions */
  will-change: transform, opacity; /* Improve animation performance */
}

.progress-particle-square.small {
  animation-name: progressSquareSmall;
  animation-duration: 0.8s;
}

@keyframes progressSquare {
  0% {
    transform: translate(0, 0) scale(0.2) rotate(0deg);
    opacity: 0;
  }
  15% {
    transform: translate(0, 0) scale(1.2) rotate(45deg);
    opacity: 1;
  }
  100% {
    transform: translate(var(--fx), var(--fy)) scale(0.8) rotate(90deg);
    opacity: 0;
  }
}

@keyframes progressSquareSmall {
  0% {
    transform: translate(0, 0) scale(0.2) rotate(0deg);
    opacity: 0;
  }
  20% {
    transform: translate(0, 0) scale(1) rotate(45deg);
    opacity: 1;
  }
  100% {
    transform: translate(var(--fx), var(--fy)) scale(0.6) rotate(90deg);
    opacity: 0;
  }
}

/* Score circle animation */
.score-circle.celebrate {
  animation: celebratePulse 1s ease-in-out, starBurst 2s ease-out;
}

/* Comic explosion animation - more energetic */
@keyframes celebratePulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* Score circle error shake animation for low scores */
.score-circle.error-shake {
  animation: shakeAnimation 0.5s cubic-bezier(.36,.07,.19,.97) both;
  transform: translate3d(0, 0, 0);
  perspective: 1000px;
}

/* Simple shake animation without flashing */
@keyframes shakeAnimation {
  10%, 90% {
    transform: translate3d(-2px, 0, 0);
  }
  
  20%, 80% {
    transform: translate3d(4px, 0, 0);
  }

  30%, 50%, 70% {
    transform: translate3d(-6px, 0, 0);
  }

  40%, 60% {
    transform: translate3d(6px, 0, 0);
  }
}

/* XP and Level Styles */
.xp-bubble {
  background-color: #001372;
  color: white;
  padding: 10px 14px;
  border-radius: 20px;
  border: none; /* Remove the white border */
  font-weight: bold;
  z-index: 100;
  pointer-events: none;
  animation: xpBubblePopFromCircle 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  transform-origin: bottom center;
}

@keyframes xpBubblePopFromCircle {
  0% {
    transform: translateY(20px) scale(0.2);
    opacity: 0;
  }
  100% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

.xp-bubble span {
  font-size: 16px;
  font-weight: bold;
}

.xp-orb {
  pointer-events: none;
  z-index: 100;
  background-color: #001372 !important;
  border: 1px solid white;
}

.level-progress-container {
  margin: 20px auto 30px;
  padding: 15px;
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  width: 80%;
  max-width: 500px;
  position: relative;
  z-index: 5;
}

.level-header {
  color: white;
  font-weight: bold;
  margin-bottom: 10px;
}

.level-title {
  font-size: 18px;
}

.level-xp {
  font-size: 16px;
  opacity: 0.9;
}

.level-progress-bar-container {
  background-color: #0c0c0c;
  height: 25px; /* Taller bar */
  border-radius: 12.5px; /* Half the height for perfect rounded ends */
  overflow: hidden;
  border: 4px solid #1d1d1d; /* Same color as the fill */
  position: relative;
  box-sizing: border-box; /* Make sure border is counted in size calculation */
}

.level-progress-bar {
  background: #002aff; /* Single solid color */
  height: 100%;
  border-radius: 8.5px; /* Adjusted to match the container's inner radius */
  transition: width 1.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

/* Game-like level up message with slide-in from right and punch effect */
.level-up-message {
  background-color: #001372;
  color: white;
  border: 3px solid #fbbe00; /* Yellow border for contrast */
  padding: 25px 50px;
  border-radius: 15px;
  font-weight: bold;
  font-size: 28px;
  text-transform: uppercase;
  text-align: center;
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 1000;
  transform: translate(100vw, -50%); /* Start offscreen to the right */
  animation: levelUpSlideIn 0.4s forwards, 
             levelUpPunch 0.3s forwards 0.4s,
             levelUpSlideOut 0.6s forwards 2.5s;
}

@keyframes levelUpSlideIn {
  0% { transform: translate(100vw, -50%); }
  80% { transform: translate(-55%, -50%); }
  100% { transform: translate(-50%, -50%); }
}

@keyframes levelUpPunch {
  0% { transform: translate(-50%, -50%) scale(1); }
  30% { transform: translate(-50%, -50%) scale(1.3); }
  50% { transform: translate(-50%, -50%) scale(0.9); }
  70% { transform: translate(-50%, -50%) scale(1.1); }
  100% { transform: translate(-50%, -50%) scale(1); }
}

@keyframes levelUpSlideOut {
  0% { transform: translate(-50%, -50%); }
  100% { transform: translate(-150vw, -50%); } /* Exit to the left */
}

.level-up-particle {
  position: fixed;
  width: 10px;
  height: 10px;
  background-color: #fbbe00; /* Use a solid color instead of random */
  border: 1px solid white;
  opacity: 1;
  z-index: 999;
  transform-origin: center;
  animation: levelUpParticleBounce 0.8s forwards;
}

.level-up-particle.square {
  border-radius: 0;
}

.level-up-particle.blue {
  background-color: #001372;
}

.level-up-particle.red {
  background-color: #e30050;
}

@keyframes levelUpParticleBounce {
  0% {
    transform: translate(0, 0) scale(1) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translate(var(--x, 0), var(--y, 0)) scale(0.5) rotate(var(--r, 0deg));
    opacity: 0;
  }
}