/* JAMB CBT Custom Styles */

:root {
  --jamb-green: #165E3C;
  --jamb-green-dark: #0D4A2A;
  --jamb-dark-red: #8B0000;
  --jamb-white: #FFFFFF;
}

/* Color utility classes */
.bg-jamb-green {
  background-color: var(--jamb-green);
}

.bg-jamb-green-dark {
  background-color: var(--jamb-green-dark);
}

.bg-jamb-dark-red {
  background-color: var(--jamb-dark-red);
}

.text-jamb-green {
  color: var(--jamb-green);
}

.text-jamb-green-dark {
  color: var(--jamb-green-dark);
}

.text-jamb-dark-red {
  color: var(--jamb-dark-red);
}

.border-jamb-green {
  border-color: var(--jamb-green);
}

.border-jamb-dark-red {
  border-color: var(--jamb-dark-red);
}

/* Spinner Animation */
.spinner {
  display: inline-block;
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Countdown Timer */
.countdown-badge {
  font-weight: bold;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  text-align: center;
  min-width: 80px;
}

.countdown-badge.warning {
  background-color: #FCA5A5;
  color: #7F1D1D;
}

.countdown-badge.normal {
  background-color: var(--jamb-green);
  color: white;
}

/* Progress Bar */
.progress-bar {
  height: 8px;
  background-color: #E5E7EB;
  border-radius: 9999px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--jamb-green), var(--jamb-green-dark));
  transition: width 0.5s ease-in-out;
}

/* Question Container */
.question-container {
  background: white;
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  margin-bottom: 1.5rem;
}

.question-text {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--jamb-green-dark);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

/* Options */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 640px) {
  .options-grid {
    grid-template-columns: 1fr;
  }
}

.option-button {
  padding: 1rem;
  border: 2px solid #D1D5DB;
  border-radius: 0.5rem;
  background: white;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: left;
  font-size: 1rem;
  font-weight: 500;
}

.option-button:hover:not(:disabled) {
  border-color: var(--jamb-green);
  background-color: #F0FDF4;
}

.option-button.selected {
  background-color: var(--jamb-green);
  color: white;
  border-color: var(--jamb-green);
}

.option-button.correct {
  background-color: #22C55E;
  color: white;
  border-color: #22C55E;
}

.option-button.incorrect {
  background-color: #EF4444;
  color: white;
  border-color: #EF4444;
}

.option-button:disabled {
  cursor: not-allowed;
}

.option-label {
  display: block;
  font-weight: bold;
  margin-bottom: 0.25rem;
}

/* Buttons */
.btn-primary {
  background-color: var(--jamb-green);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  font-weight: bold;
  transition: all 0.3s ease;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--jamb-green-dark);
  box-shadow: 0 4px 12px rgba(22, 94, 60, 0.3);
}

.btn-primary:disabled {
  background-color: #D1D5DB;
  cursor: not-allowed;
}

/* Navigation */
.nav-button {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  border: 2px solid var(--jamb-green);
  background: white;
  color: var(--jamb-green);
  cursor: pointer;
  font-weight: bold;
  transition: all 0.3s ease;
}

.nav-button:hover {
  background-color: var(--jamb-green);
  color: white;
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Responsive Typography */
@media (max-width: 640px) {
  .question-text {
    font-size: 1.1rem;
  }
  
  .option-button {
    font-size: 0.95rem;
    padding: 0.75rem;
  }
}