/* Modern Design System */
:root {
  /* Primary Palette */
  --primary: #6c5ce7;
  --primary-light: #a29bfe;
  --primary-dark: #5641e5;
  --secondary: #fd79a8;
  --secondary-light: #ffa5c3;
  --secondary-dark: #e84393;
  
  /* Semantic Colors */
  --success: #00b894;
  --warning: #fdcb6e;
  --danger: #ff7675;
  --info: #74b9ff;
  
  /* Neutral Colors */
  --white: #ffffff;
  --light: #f8f9fa;
  --light-accent: #e9ecef;
  --gray-light: #dee2e6;
  --gray: #adb5bd;
  --gray-dark: #495057;
  --dark: #343a40;
  --black: #212529;
  
  /* Typography */
  --font-primary: 'Poppins', sans-serif;
  --font-secondary: 'Montserrat', sans-serif;
  --font-mono: 'Roboto Mono', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 2rem;
  --radius-full: 100rem;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
  --shadow-focus: 0 0 0 3px rgba(108, 92, 231, 0.4);
  
  /* Animations */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-bounce: cubic-bezier(0.68, -0.55, 0.27, 1.55);
  
  /* Enhanced Animation Properties */
  --transition-bounce-gentle: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-smooth-out: cubic-bezier(0.22, 1, 0.36, 1);
  
  /* Enhanced Shadow System */
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-button: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-focus-ring: 0 0 0 4px rgba(108, 92, 231, 0.25);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  height: 100%;
}

body {
  font-family: var(--font-primary);
  background: linear-gradient(135deg, #a29bfe 0%, #6c5ce7 100%);
  background-attachment: fixed;
  color: var(--dark);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: var(--space-md);
  line-height: 1.6;
}

/* Game Container */
.game-container {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-card), 0 15px 30px rgba(108, 92, 231, 0.2);
  width: 100%;
  max-width: 550px;
  text-align: center;
  position: relative;
  overflow: hidden;
  animation: fadeIn 0.8s var(--transition-smooth-out);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  transform-origin: center;
  transition: transform 0.3s var(--transition-bounce-gentle);
}

.game-container:hover {
  transform: translateY(-5px);
}

/* Game Title */
.game-container h1 {
  font-family: var(--font-secondary);
  font-weight: 700;
  font-size: 2.2rem;
  margin-bottom: var(--space-md);
  color: var(--primary);
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

/* Start Container */
.start-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin: var(--space-md) 0;
}

/* Category/Difficulty Selection */
.options-group {
  margin: var(--space-md) 0;
}

.options-group label {
  display: block;
  text-align: left;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--gray-dark);
}

.options-group select {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--gray-light);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1rem;
  color: var(--dark);
  background-color: var(--white);
  transition: border-color var(--transition-fast);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236c5ce7' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1rem;
}

.options-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--shadow-focus);
}

/* Buttons */
button {
  background-color: var(--primary);
  color: var(--white);
  border: none;
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-sm) 0;
  cursor: pointer;
  border-radius: var(--radius-md);
  width: 100%;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.2s var(--transition-bounce-gentle), 
              background-color 0.2s var(--transition-normal), 
              box-shadow 0.2s var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
  box-shadow: var(--shadow-button);
}

button::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.2) 50%, rgba(255,255,255,0) 100%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
  z-index: -1;
}

button:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

button:hover::after {
  transform: translateX(100%);
}

button:active {
  transform: translateY(0);
  box-shadow: var(--shadow-button);
}

button:disabled {
  background-color: var(--gray);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

button:disabled::after {
  display: none;
}

button:focus {
  outline: none;
  box-shadow: var(--shadow-focus-ring);
}

/* Answer Buttons */
#answer-buttons {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

#answer-buttons button {
  display: flex;
  align-items: center;
  text-align: left;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background-color: var(--light);
  color: var(--dark);
  border: 2px solid var(--gray-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

#answer-buttons button::before {
  content: '';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: rgba(108, 92, 231, 0.1);
  border-radius: var(--radius-full);
  margin-right: var(--space-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  transition: all var(--transition-normal);
}

#answer-buttons button:nth-child(1)::before { content: 'A'; }
#answer-buttons button:nth-child(2)::before { content: 'B'; }
#answer-buttons button:nth-child(3)::before { content: 'C'; }
#answer-buttons button:nth-child(4)::before { content: 'D'; }

#answer-buttons button:hover {
  background-color: var(--light-accent);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px) scale(1.01);
}

#answer-buttons button.correct {
  background-color: var(--success);
  color: var(--white);
  border-color: var(--success);
  animation: correct-answer 0.5s var(--transition-bounce-gentle);
}

#answer-buttons button.incorrect {
  background-color: var(--danger);
  color: var(--white);
  border-color: var(--danger);
  animation: incorrect-answer 0.5s var(--transition-bounce-gentle);
}

/* Timer Container */
#timer-container {
  margin: var(--space-lg) 0;
  position: relative;
  height: 10px;
  background-color: var(--gray-light);
  border-radius: var(--radius-full);
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

#timer-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(to right, var(--primary-light), var(--primary));
  border-radius: var(--radius-full);
  transition: width 1s linear;
  box-shadow: 0 0 5px rgba(108, 92, 231, 0.5);
}

#timer-text {
  text-align: center;
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-dark);
}

/* Score Container */
#score-container {
  display: flex;
  justify-content: space-between;
  padding: var(--space-md);
  background-color: var(--light);
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
  box-shadow: var(--shadow-sm);
  font-weight: 500;
}

#score {
  color: var(--primary);
  font-weight: 700;
}

/* Question Display */
#question {
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.5;
  margin: var(--space-lg) 0;
  color: var(--dark);
}

#category, #difficulty {
  display: inline-block;
  margin: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

#category {
  background-color: var(--primary-light);
  color: var(--white);
}

#difficulty {
  background-color: var(--secondary-light);
  color: var(--white);
}

/* Feedback Container */
#feedback-container {
  padding: var(--space-md);
  margin: var(--space-md) 0;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1.2rem;
  animation: bounce 0.7s var(--transition-bounce-gentle);
  box-shadow: var(--shadow-sm);
  transform-origin: center;
}

#feedback-container.correct {
  background-color: rgba(0, 184, 148, 0.1);
  color: var(--success);
  border-left: 4px solid var(--success);
}

#feedback-container.incorrect {
  background-color: rgba(255, 118, 117, 0.1);
  color: var(--danger);
  border-left: 4px solid var(--danger);
}

/* Next Button */
#next-button {
  background-color: var(--secondary);
  margin-top: var(--space-md);
}

#next-button:hover {
  background-color: var(--secondary-dark);
}

/* Game Over Container */
#game-over-container {
  text-align: center;
  animation: fadeIn 0.8s var(--transition-normal);
}

#game-over-container h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  color: var(--primary);
  animation: slideInDown 0.5s var(--transition-bounce-gentle);
}

.results-container {
  background-color: var(--light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  box-shadow: var(--shadow-card);
  animation: scaleIn 0.5s 0.2s var(--transition-bounce-gentle) both;
}

.score-circle {
  width: 130px;
  height: 130px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: 50%;
  margin: 0 auto var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--white);
  box-shadow: var(--shadow-lg), inset 0 0 15px rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
  animation: pulse 2s infinite;
}

.score-circle::after {
  content: '';
  position: absolute;
  top: 5px;
  left: 5px;
  right: 5px;
  bottom: 5px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.score-circle::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(transparent, rgba(255, 255, 255, 0.3), transparent 30%);
  animation: rotate 4s linear infinite;
}

#final-score {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  position: relative;
  z-index: 1;
}

/* Loading */
#loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: var(--space-xl) 0;
  color: var(--gray-dark);
  font-weight: 500;
}

.loader {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(108, 92, 231, 0.25);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s infinite linear;
  margin-bottom: var(--space-md);
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Particles enhancement */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.particle {
  position: absolute;
  animation: float 15s infinite linear alternate;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  filter: blur(2px);
}

/* Improved Confetti Animation */
.confetti {
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  width: 10px;
  height: 10px;
  background-color: #f00;
  transform-origin: center;
  opacity: 0.8;
  animation-name: confetti-fall, confetti-shake, confetti-rotate;
  animation-timing-function: linear, ease-in-out, linear;
  animation-iteration-count: 1, infinite, infinite;
  animation-fill-mode: forwards, forwards, forwards;
  animation-play-state: running;
  top: -20px;
}

/* Enhanced Medal Display */
.medal {
  position: absolute;
  top: -25px;
  right: -25px;
  transform: rotate(30deg);
  animation: medalAppear 0.5s 0.5s var(--transition-bounce-gentle) forwards;
  opacity: 0;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.2));
  z-index: 10;
}

/* Fixed High Score Badge */
#high-score-badge {
  position: relative;
  display: inline-block;
  font-weight: 700;
}

#high-score-badge.new {
  color: var(--primary);
  animation: pulse 1s infinite;
}

#high-score-badge.new::after {
  content: "NEW!";
  position: absolute;
  top: -10px;
  right: -22px;
  font-size: 0.6rem;
  background-color: var(--secondary);
  color: var(--white);
  padding: 3px 6px;
  border-radius: var(--radius-sm);
  transform: rotate(10deg);
  box-shadow: var(--shadow-sm);
  font-weight: 700;
  z-index: 5;
}

/* Better Stats Container Layout */
.stats {
  display: flex;
  justify-content: space-around;
  margin: var(--space-lg) 0;
  gap: var(--space-md);
}

.stat-item {
  text-align: center;
  flex: 1;
  padding: var(--space-sm);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--transition-bounce-gentle);
}

.stat-item:hover {
  transform: translateY(-5px);
}

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

@keyframes slideInDown {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

@keyframes pulse {
  0% { transform: scale(1); box-shadow: var(--shadow-lg); }
  50% { transform: scale(1.05); box-shadow: 0 15px 30px rgba(108, 92, 231, 0.3); }
  100% { transform: scale(1); box-shadow: var(--shadow-lg); }
}

@keyframes sparkle {
  0% { transform: scale(0) rotate(0deg); opacity: 1; }
  50% { transform: scale(1) rotate(180deg); opacity: 1; }
  100% { transform: scale(0) rotate(360deg); opacity: 0; }
}

@keyframes confetti-fall {
  0% { top: -20px; }
  100% { top: 100vh; }
}

@keyframes confetti-shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(10px); }
  50% { transform: translateX(-10px); }
  75% { transform: translateX(8px); }
  100% { transform: translateX(-8px); }
}

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

@keyframes correct-answer {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@keyframes incorrect-answer {
  0%, 20%, 40% { transform: translateX(0); }
  10%, 30% { transform: translateX(-5px); }
  15%, 35% { transform: translateX(5px); }
  45% { transform: translateX(0); }
}

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

@keyframes medalAppear {
  from { opacity: 0; transform: scale(0.5) rotate(30deg); }
  to { opacity: 1; transform: scale(1) rotate(30deg); }
}

@keyframes float {
  0% {
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  33% {
    transform: translate(30px, -50px) rotate(120deg) scale(1.2);
  }
  66% {
    transform: translate(-20px, 20px) rotate(240deg) scale(0.8);
  }
  100% {
    transform: translate(10px, -30px) rotate(360deg) scale(1.1);
  }
}

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

.scale-in {
  animation: scaleIn 0.5s var(--transition-bounce-gentle);
}

.fade-in {
  animation: fadeIn 0.4s var(--transition-normal);
}

/* Responsive Design */
@media (min-width: 768px) {
  #answer-buttons {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .game-container {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin: var(--space-md);
  }
  
  .stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
  }
  
  .stat-item {
    margin-bottom: var(--space-sm);
  }
  
  h1 {
    font-size: 1.5rem;
  }
  
  #question {
    font-size: 1rem;
    margin: var(--space-md) 0;
  }
  
  .action-buttons {
    grid-template-columns: 1fr;
  }
  
  .controls-container {
    top: 10px;
    right: 10px;
  }
  
  .controls-container button {
    width: 35px;
    height: 35px;
  }
  
  .medal {
    top: -12px;
    right: -12px;
    transform: scale(0.8) rotate(30deg);
  }
  
  #game-over-container h2 {
    font-size: 1.8rem;
  }
  
  .score-circle {
    width: 100px;
    height: 100px;
  }
  
  #final-score {
    font-size: 2rem;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  body.dark-mode-support {
    background: linear-gradient(135deg, #2c2c54 0%, #1e1e30 100%);
  }
  
  .dark-mode-support .game-container {
    background-color: var(--dark);
    border-color: rgba(255, 255, 255, 0.05);
    color: var(--light);
  }
  
  .dark-mode-support #answer-buttons button {
    background-color: var(--gray-dark);
    color: var(--light);
    border-color: var(--black);
  }
  
  .dark-mode-support .results-container {
    background-color: var(--gray-dark);
  }
  
  .dark-mode-support .stat-label {
    color: var(--gray-light);
  }
}

/* Theme and Sound Controls */
.controls-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 100;
  display: flex;
  gap: var(--space-sm);
}

.controls-container button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--white);
  color: var(--primary);
  padding: 0;
  box-shadow: var(--shadow-md);
  transition: transform 0.2s var(--transition-bounce-gentle);
}

.controls-container button:hover {
  transform: translateY(-2px) scale(1.05);
}

.controls-container button:active {
  transform: scale(0.95);
}

#theme-toggle .moon-icon,
.dark-mode #theme-toggle .sun-icon,
#sound-toggle .sound-off-icon,
.sound-muted #sound-toggle .sound-on-icon {
  display: none;
}

.dark-mode #theme-toggle .moon-icon,
#theme-toggle .sun-icon,
.sound-muted #sound-toggle .sound-off-icon,
#sound-toggle .sound-on-icon {
  display: block;
}

/* High Score Container */
.high-score-container {
  margin-top: var(--space-xl);
  padding: var(--space-md);
  background-color: var(--light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  animation: fadeInUp 0.6s var(--transition-normal);
}

.high-score-container h3 {
  font-size: 0.9rem;
  color: var(--gray-dark);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.high-score {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

/* Enhanced Action Buttons */
.action-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.secondary-button {
  background-color: var(--light);
  color: var(--primary);
  border: 2px solid var(--primary-light);
}

.secondary-button:hover {
  background-color: var(--primary-light);
  color: var(--white);
}

/* High Score Badge */
#high-score-badge {
  position: relative;
  display: inline-block;
}

#high-score-badge.new {
  color: var (--primary);
  animation: pulse 1s infinite;
}

#high-score-badge.new::after {
  content: "NEW!";
  position: absolute;
  top: -8px;
  right: -15px;
  font-size: 0.6rem;
  background-color: var(--secondary);
  color: var(--white);
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  transform: rotate(10deg);
}

/* Enhanced Dark Mode */
.dark-mode {
  background: linear-gradient(135deg, #2c2c54 0%, #1e1e30 100%);
}

.dark-mode .game-container {
  background-color: var(--dark);
  border-color: rgba(255, 255, 255, 0.05);
  color: var(--light);
}

.dark-mode h1 {
  background: linear-gradient(to right, var(--primary-light), var(--secondary-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.dark-mode .options-group label {
  color: var(--gray-light);
}

.dark-mode .options-group select {
  background-color: var(--gray-dark);
  color: var(--light);
  border-color: var(--gray);
}

.dark-mode #answer-buttons button {
  background-color: var(--gray-dark);
  color: var (--light);
  border-color: var(--gray);
}

.dark-mode #answer-buttons button:hover {
  background-color: var(--dark);
  border-color: var(--primary-light);
}

.dark-mode .results-container {
  background-color: var(--gray-dark);
}

.dark-mode .high-score-container {
  background-color: var(--gray-dark);
}

.dark-mode .high-score-container h3 {
  color: var(--gray-light);
}

.dark-mode #score-container {
  background-color: var(--gray-dark);
}

.dark-mode .secondary-button {
  background-color: var(--gray-dark);
  color: var(--primary-light);
  border-color: var(--primary-light);
}

.dark-mode .secondary-button:hover {
  background-color: var(--primary-dark);
  color: var(--white);
}

.dark-mode .controls-container button {
  background-color: var(--gray-dark);
  color: var(--primary-light);
}

.dark-mode #question {
  color: var(--light);
}

.dark-mode .stat-item {
  background-color: rgba(0, 0, 0, 0.2);
}

.dark-mode #timer-text {
  color: var(--gray-light);
}

.dark-mode #feedback-container.correct {
  background-color: rgba(0, 184, 148, 0.2);
  border-left-color: var(--success);
}

.dark-mode #feedback-container.incorrect {
  background-color: rgba(255, 118, 117, 0.2);
  border-left-color: var(--danger);
}

/* Enhanced sparkle animation */
.sparkle {
  position: absolute;
  background: radial-gradient(circle, rgba(255, 215, 0, 1) 0%, rgba(255, 215, 0, 0.3) 70%, transparent 100%);
  box-shadow: 0 0 10px 2px rgba(255, 215, 0, 0.5);
  border-radius: 50%;
  z-index: 10;
  pointer-events: none;
}

@keyframes sparkle {
  0% {
    transform: scale(0) rotate(0deg);
    opacity: 1;
  }
  50% {
    transform: scale(1.2) rotate(180deg);
    opacity: 1;
    box-shadow: 0 0 15px 5px rgba(255, 215, 0, 0.6);
  }
  100% {
    transform: scale(0) rotate(360deg);
    opacity: 0;
  }
}

/* Fixed confetti animation */
.confetti-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1000;
  overflow: hidden;
}

.confetti {
  position: absolute;
  z-index: 1;
  will-change: transform;
}

@keyframes confetti-fall {
  0% { transform: translateY(-20px); }
  100% { transform: translateY(100vh); }
}

@keyframes confetti-shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(10px); }
  50% { transform: translateX(-10px); }
  75% { transform: translateX(8px); }
  100% { transform: translateX(-8px); }
}

@keyframes confetti-rotate {
  0% { transform: rotate(0); }
  100% { transform: rotate(var(--spin-speed, 360deg)); }
}

/* Improved question transitions */
#question-container {
  transition: opacity 0.3s ease;
}

#question-container.transitioning {
  pointer-events: none;
}

#question-container.fade-out,
#answer-buttons.fade-out {
  opacity: 0.3;
}

/* Enhanced score display in feedback */
.points-added {
  display: inline-block;
  color: var(--success);
  font-weight: 700;
  animation: scorePopup 0.8s var(--transition-bounce-gentle);
  margin-left: 5px;
}

.streak-bonus {
  display: block;
  font-size: 0.8rem;
  margin-top: 5px;
  color: var(--primary);
  animation: fadeIn 0.5s 0.3s both;
}

@keyframes scorePopup {
  0% { transform: scale(0.5); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}

/* Fix for answering state */
#answer-buttons.answering {
  pointer-events: none;
}

/* Enhanced Medal Display */
.medal {
  position: absolute;
  top: -25px;
  right: -25px;
  transform: rotate(0deg);
  animation: medalAppear 0.5s 0.5s var(--transition-bounce-gentle) forwards;
  opacity: 0;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.2));
  z-index: 10;
}

@keyframes medalAppear {
  0% { 
    opacity: 0; 
    transform: scale(0.5) rotate(0deg); 
  }
  
  60% {
    transform: scale(1.3) rotate(25deg);
  }
  
  100% { 
    opacity: 1; 
    transform: scale(1) rotate(30deg); 
  }
}

/* Enhanced next button appearance */
#next-button-container {
  transition: opacity 0.3s ease, transform 0.3s var(--transition-bounce-gentle);
}

#next-button-container.hidden {
  opacity: 0;
  transform: translateY(10px);
}

/* Fixed dark mode for feedback */
.dark-mode #feedback-container.correct {
  background-color: rgba(0, 184, 148, 0.2);
  border-left-color: var(--success);
}

.dark-mode #feedback-container.incorrect {
  background-color: rgba(255, 118, 117, 0.2);
  border-left-color: var(--danger);
}

.dark-mode .points-added {
  color: var(--success);
}

.dark-mode .streak-bonus {
  color: var(--primary-light);
}