body {
  box-sizing: border-box;
  font-family: 'Cairo', Tahoma, sans-serif;
}

* {
  font-family: 'Cairo', Tahoma, sans-serif;
}

/* Theme Variables */
/* Modern Design System Tokens */
:root {
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
  --accent-primary: #6366f1;
  --accent-secondary: #a855f7;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
}

.theme-modern {
  --bg-primary: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-button: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --bg-button-hover: linear-gradient(135deg, #4f46e5 0%, #9333ea 100%);
  --bg-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --bg-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  --bg-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --border-color: rgba(99, 102, 241, 0.2);
  --shadow: 0 10px 40px rgba(99, 102, 241, 0.1);
}

.glass-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

.shimmer-text {
  background: linear-gradient(to right,
      #fff 20%,
      #a5b4fc 40%,
      #e0e7ff 60%,
      #fff 80%);
  background-size: 200% auto;
  color: #fff;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 4s linear infinite;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.float-animation {
  animation: float 6s ease-in-out infinite;
}

/* Print Styles */
@media print {
  .no-print {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
    overflow: visible !important;
    height: auto !important;
  }

  #app {
    overflow: visible !important;
    height: auto !important;
  }

  .card-gradient {
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }

  #resultsScreen {
    display: block !important;
    visibility: visible !important;
    position: static !important;
    overflow: visible !important;
  }

  /* Ensure background graphics are printed */
  * {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }
}

.theme-win7 {
  --bg-primary: linear-gradient(to bottom, #4d8acc 0%, #8bb9e8 50%, #4d8acc 100%);
  --bg-card: linear-gradient(to bottom, #f0f0f0 0%, #e6e6e6 3%, #d4d4d4 100%);
  --bg-button: linear-gradient(to bottom, #5d9ee0 0%, #3873bc 50%, #1f5da0 51%, #3773bb 100%);
  --bg-button-hover: linear-gradient(to bottom, #6daee5 0%, #4883c6 50%, #2f6db0 51%, #4783c5 100%);
  --bg-success: linear-gradient(to bottom, #7bc947 0%, #5ba02a 50%, #4a8f1f 51%, #5ba02a 100%);
  --bg-danger: linear-gradient(to bottom, #e74c3c 0%, #c0392b 50%, #a82315 51%, #c0392b 100%);
  --bg-warning: linear-gradient(to bottom, #f39c12 0%, #e67e22 50%, #d35400 51%, #e67e22 100%);
  --text-primary: #333;
  --text-secondary: #666;
  --border-color: #6d9ac5;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.theme-dark {
  --bg-primary: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
  --bg-card: linear-gradient(to bottom, #111111 0%, #1a1a1a 100%);
  --bg-button: linear-gradient(135deg, #e94560 0%, #c23854 100%);
  --bg-button-hover: linear-gradient(135deg, #ff5370 0%, #d14560 100%);
  --bg-success: linear-gradient(135deg, #00b894 0%, #00cec9 100%);
  --bg-danger: linear-gradient(135deg, #d63031 0%, #ff7675 100%);
  --bg-warning: linear-gradient(135deg, #fdcb6e 0%, #ffeaa7 100%);
  --text-primary: #ffffff;
  --text-secondary: #b2bec3;
  --border-color: #2d3436;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.7);
}

.gradient-bg {
  background: var(--bg-primary);
  position: relative;
  transition: background 0.5s ease;
}

@keyframes shine {
  0% {
    background-position: 0% 50%;
  }

  100% {
    background-position: 100% 50%;
  }
}

.shine-effect {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(to right, #667eea 20%, #764ba2 40%, #ff0080 60%, #667eea 80%);
  background-size: 200% auto;
  color: #000;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 3s linear infinite;
  display: inline-block;
  padding: 0 5px;
}

.card-gradient {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  box-shadow: var(--shadow);
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.btn-primary {
  background: var(--bg-button);
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
  background: var(--bg-button-hover);
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.btn-success {
  background: var(--bg-success);
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.btn-danger {
  background: var(--bg-danger);
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.btn-skip {
  background: var(--bg-warning);
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.btn-skip:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.btn-audio {
  background: linear-gradient(135deg, #52c9f0 0%, #2ba8d4 100%);
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn-audio:hover {
  transform: scale(1.05);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.progress-ring {
  transform: rotate(-90deg);
}

.progress-ring-circle {
  transition: stroke-dashoffset 1s ease-in-out;
}

@keyframes celebrate {

  0%,
  100% {
    transform: scale(1) rotate(0deg);
  }

  25% {
    transform: scale(1.2) rotate(-5deg);
  }

  50% {
    transform: scale(1.1) rotate(5deg);
  }

  75% {
    transform: scale(1.15) rotate(-3deg);
  }
}

@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  25% {
    transform: translateX(-8px);
  }

  50% {
    transform: translateX(8px);
  }

  75% {
    transform: translateX(-8px);
  }
}

.animate-shake {
  animation: shake 0.4s cubic-bezier(.36, .07, .19, .97) both;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }

  33% {
    transform: translateY(-15px) rotate(2deg);
  }

  66% {
    transform: translateY(-5px) rotate(-2deg);
  }
}

@keyframes magicGlow {

  0%,
  100% {
    box-shadow: 0 0 5px #ffd700, 0 0 10px #ffd700, 0 0 20px #ff00de;
  }

  50% {
    box-shadow: 0 0 20px #ffd700, 0 0 30px #ff00de, 0 0 40px #ff00de;
  }
}

.magic-glow-btn {
  animation: magicGlow 2s infinite, float 3s ease-in-out infinite;
  border: 2px solid #fff !important;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) !important;
}

.magic-glow-btn:hover {
  transform: scale(1.2) rotate(10deg);
  filter: brightness(1.2);
}

@keyframes confetti {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }

  100% {
    transform: translateY(-100px) rotate(720deg);
    opacity: 0;
  }
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }
}

@keyframes firework {
  0% {
    transform: translate(0, 0) scale(0);
    opacity: 1;
  }

  50% {
    opacity: 1;
  }

  100% {
    transform: translate(var(--x), var(--y)) scale(1);
    opacity: 0;
  }
}

.celebrate {
  animation: celebrate 0.5s ease-in-out;
}

.float-animation {
  animation: float 3s ease-in-out infinite;
}

.shake {
  animation: shake 0.3s ease-in-out;
}

.pulse-animation {
  animation: pulse 1.5s ease-in-out infinite;
}

.confetti-particle {
  position: absolute;
  animation: confetti 1s ease-out forwards;
}

.firework-particle {
  position: absolute;
  animation: firework 1s ease-out forwards;
}

.option-btn {
  transition: all 0.3s ease;
  border: 2px solid var(--border-color);
  background: var(--bg-card);
  box-shadow: var(--shadow);
  color: var(--text-primary);
  border-radius: 16px;
  font-weight: 600;
}

.option-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
  border-color: #667eea;
}

.option-btn:active {
  transform: translateY(0);
}

.option-btn.selected {
  border-color: #667eea;
  background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.theme-dark .option-btn.selected {
  background: linear-gradient(135deg, #e94560 0%, #c23854 100%);
  border-color: #ff5370;
  color: white;
}

.option-btn.correct {
  border-color: #38ef7d;
  background: linear-gradient(135deg, #d4f0c4 0%, #aadc8c 100%);
  box-shadow: 0 8px 25px rgba(56, 239, 125, 0.3);
}

.theme-dark .option-btn.correct {
  background: linear-gradient(135deg, #00d4aa 0%, #00a884 100%);
  border-color: #00ffc8;
  color: white;
}

.option-btn.wrong {
  border-color: #f45c43;
  background: linear-gradient(135deg, #ffcccc 0%, #ff9999 100%);
  box-shadow: 0 8px 25px rgba(244, 92, 67, 0.3);
}

.theme-dark .option-btn.wrong {
  background: linear-gradient(135deg, #ff4757 0%, #d63447 100%);
  border-color: #ff6b7a;
  color: white;
}

.timer-warning {
  animation: pulse 1s ease-in-out infinite;
  color: #f45c43 !important;
}

#timerRing {
  filter: drop-shadow(0 0 5px rgba(0, 210, 255, 0.5));
}

.theme-dark #timerRing {
  filter: drop-shadow(0 0 8px rgba(0, 210, 255, 0.8));
}

#countdownContainer svg {
  filter: drop-shadow(0 0 12px rgba(0, 0, 0, 0.1));
}

#timerDisplay {
  font-family: 'Courier New', Courier, monospace;
  letter-spacing: 1px;
}

.score-circle {
  filter: drop-shadow(0 8px 20px rgba(102, 126, 234, 0.3));
}

.table-container {
  max-height: 400px;
  overflow-y: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.table-container::-webkit-scrollbar {
  width: 12px;
}

.table-container::-webkit-scrollbar-track {
  background: var(--bg-card);
  border-radius: 6px;
}

.table-container::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 6px;
}

.table-container::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #7c94f5 0%, #8b5cb8 100%);
}

.emoji-bounce {
  display: inline-block;
  animation: float 2s ease-in-out infinite;
}

.section-badge {
  background: var(--bg-button);
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  padding: 8px 20px;
  border-radius: 12px;
  color: white;
  font-size: 0.875rem;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  display: inline-block;
}

input,
select,
textarea {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

input::placeholder {
  color: var(--text-secondary);
}

input:focus,
select:focus,
textarea:focus {
  border-color: #667eea;
  outline: none;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.theme-dark input:focus,
.theme-dark select:focus,
.theme-dark textarea:focus {
  border-color: #e94560;
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.2);
}

/* Fix for Dark Mode Select Options */
.theme-dark select option {
  background-color: #1a1a2e;
  color: #ffffff;
}

.theme-dark input,
.theme-dark select,
.theme-dark textarea {
  background-color: #1a1a2e;
  /* Dark background for inputs */
  color: #ffffff;
  /* White text */
  border-color: #2c3e50;
}

table {
  color: var(--text-primary);
  background: var(--bg-card);
}

thead {
  background: var(--bg-button);
  color: white;
}

tbody tr {
  border-bottom: 1px solid var(--border-color) !important;
  transition: all 0.2s ease;
}

tbody tr:hover {
  background: rgba(102, 126, 234, 0.1) !important;
}

.theme-dark tbody tr:hover {
  background: rgba(233, 69, 96, 0.1) !important;
}

/* Theme Switcher */
.theme-switcher {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1000;
  display: flex;
  gap: 8px;
  background: var(--bg-card);
  padding: 8px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.theme-btn {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  position: relative;
}

.theme-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.theme-btn.active {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.theme-btn-modern {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.theme-btn-win7 {
  background: linear-gradient(to bottom, #4d8acc 0%, #8bb9e8 50%, #4d8acc 100%);
}

.theme-btn-dark {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

/* Opposite Question Style */
.opposite-question {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--text-primary);
  margin: 20px 0;
  flex-wrap: wrap;
}

.opposite-word {
  padding: 15px 30px;
  background: var(--bg-button);
  color: white;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.opposite-arrow {
  font-size: 3rem;
  opacity: 0.6;
}

.opposite-input {
  padding: 15px 30px;
  background: var(--bg-card);
  border: 3px dashed var(--border-color);
  border-radius: 16px;
  min-width: 150px;
  text-align: center;
  font-size: 2rem;
  color: var(--text-primary);
}

/* Question Container - Fixed Height (Compact Mode) */
#questionArea {
  min-height: 350px;
  max-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  padding: 10px;
}

#questionArea::-webkit-scrollbar {
  width: 6px;
}

#questionArea::-webkit-scrollbar-track {
  background: var(--bg-card);
  border-radius: 4px;
}

#questionArea::-webkit-scrollbar-thumb {
  background: var(--bg-button);
  border-radius: 4px;
}

.question-wrapper {
  width: 100%;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .opposite-question {
    font-size: 1.8rem;
    gap: 15px;
  }

  .opposite-word {
    padding: 12px 24px;
    font-size: 1.8rem;
  }

  .opposite-arrow {
    font-size: 2.5rem;
  }

  .opposite-input {
    padding: 12px 24px;
    font-size: 1.5rem;
    min-width: 120px;
  }

  #questionArea {
    min-height: 450px;
    max-height: 450px;
  }
}

/* Question Statistics Animations */
@keyframes countdown {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.15);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.countdown-animation {
  animation: countdown 0.5s ease-in-out;
}

#questionStats {
  animation: slideDown 0.5s ease-out;
}

/* Pulse effect for remaining questions when low */
@keyframes urgentPulse {

  0%,
  100% {
    transform: scale(1);
    color: #f5576c;
  }

  50% {
    transform: scale(1.2);
    color: #ff0000;
  }
}

.urgent-countdown {
  animation: urgentPulse 0.8s ease-in-out infinite;
}