/* Learning Progress Tracker Styles */

/* Checkbox Container */
.learning-checkbox-container {
  display: inline-flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  margin: 1.5rem 0;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
  border-left: 4px solid #667eea;
  border-radius: 0.5rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Custom Checkbox */
.learning-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
  font-size: 1.1rem;
  font-weight: 500;
}

.learning-checkbox {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.checkbox-custom {
  position: relative;
  width: 24px;
  height: 24px;
  border: 2px solid #667eea;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

.learning-checkbox:checked ~ .checkbox-custom {
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-color: #764ba2;
}

.learning-checkbox:checked ~ .checkbox-custom::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 16px;
  font-weight: bold;
}

.learning-checkbox-label:hover .checkbox-custom {
  transform: scale(1.05);
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.checkbox-text {
  color: var(--text-color);
  transition: color 0.3s ease;
}

.learning-checkbox:checked ~ .checkbox-text {
  color: #667eea;
}

.completion-date {
  margin-left: 2.5rem;
  color: var(--text-muted-color);
  font-size: 0.85rem;
}

/* Disabled State */
.learning-checkbox-label.disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.learning-checkbox-label.disabled .checkbox-custom {
  border-color: #999;
  background: rgba(150, 150, 150, 0.1);
}

.learning-checkbox-label.disabled:hover .checkbox-custom {
  transform: none;
  box-shadow: none;
}

.learning-checkbox:disabled ~ .checkbox-custom {
  cursor: not-allowed;
}

/* Scroll Hint */
.scroll-hint {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 2.5rem;
  color: #f39c12;
  font-size: 0.85rem;
  font-weight: 500;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

/* Category Progress Bar */
.category-progress-bar {
  margin: 2rem 0;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
  border-radius: 1rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(102, 126, 234, 0.2);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  font-weight: 600;
}

.progress-percentage {
  font-size: 1.5rem;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.progress-bar-track {
  height: 12px;
  background: rgba(102, 126, 234, 0.1);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  border-radius: 6px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.progress-bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.3), 
    transparent
  );
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.progress-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted-color);
}

.reset-progress-btn {
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 0.5rem;
  color: var(--text-color);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.85rem;
}

.reset-progress-btn:hover {
  background: rgba(102, 126, 234, 0.1);
  border-color: #667eea;
  transform: translateY(-2px);
}

/* Mini Progress Indicator on Category Cards */
.learning-progress-indicator {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(102, 126, 234, 0.2);
}

.progress-bar-mini {
  height: 6px;
  background: rgba(102, 126, 234, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-bar-mini .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  border-radius: 3px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-text {
  font-size: 0.85rem;
  color: var(--text-muted-color);
}

/* Celebration Animation */
.celebration-animation {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 5rem;
  z-index: 9999;
  animation: celebrate 2s ease-out;
  pointer-events: none;
}

@keyframes celebrate {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.2);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1) translateY(-100px);
  }
}

/* Progress Stats Widget */
.progress-stats-widget {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.stat-card-mini {
  padding: 1rem;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
  border-radius: 0.75rem;
  text-align: center;
  border: 1px solid rgba(102, 126, 234, 0.2);
}

.stat-card-mini .stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card-mini .stat-label {
  font-size: 0.85rem;
  color: var(--text-muted-color);
  margin-top: 0.25rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .learning-checkbox-container {
    padding: 0.75rem;
  }

  .learning-checkbox-label {
    font-size: 1rem;
  }

  .category-progress-bar {
    padding: 1rem;
  }

  .progress-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .progress-footer {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }

  .reset-progress-btn {
    width: 100%;
  }

  .celebration-animation {
    font-size: 3rem;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  .learning-checkbox-container {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
  }

  .checkbox-custom {
    background: rgba(0, 0, 0, 0.3);
  }

  .category-progress-bar {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
  }

  .reset-progress-btn {
    background: rgba(0, 0, 0, 0.3);
  }

  .stat-card-mini {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
  }
}

/* Accessibility */
.learning-checkbox:focus ~ .checkbox-custom {
  outline: 2px solid #667eea;
  outline-offset: 2px;
}

.reset-progress-btn:focus {
  outline: 2px solid #667eea;
  outline-offset: 2px;
}

/* Animation for progress bar loading */
@keyframes load-progress {
  0% {
    width: 0%;
  }
  100% {
    width: var(--progress-width);
  }
}

.progress-bar-fill.animate {
  animation: load-progress 1s ease-out;
}

/* Post Title Completion Indicators */
.post-completed-indicator {
  display: inline-block;
  color: #10b981;
  font-weight: bold;
  font-size: 1.1em;
  margin-right: 0.3rem;
  animation: fadeInScale 0.3s ease-out;
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Style for post links with completion indicator */
a:has(.post-completed-indicator) {
  position: relative;
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
  .post-completed-indicator {
    color: #34d399;
  }
}