/* Component Styles */

/* Drop Zone */
.drop-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-3xl);
  text-align: center;
  background: var(--surface-color);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--primary-color);
  background: rgba(71, 118, 255, 0.05);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.drop-zone-content {
  position: relative;
  z-index: 1;
}

.upload-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-lg);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(71, 118, 255, 0.1);
  border-radius: 50%;
  transition: all var(--transition-normal);
}

.drop-zone:hover .upload-icon {
  transform: scale(1.1);
  background: rgba(71, 118, 255, 0.2);
}

.drop-zone h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.drop-zone p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

.supported-formats {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  min-height: 44px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn-primary {
  background: var(--primary-color);
  color: var(--background-color);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--success-color);
  color: var(--background-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background: #059669;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-outline:hover:not(:disabled) {
  background: var(--surface-color);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* Preview Section */
.preview-section {
  padding: var(--spacing-3xl) 0;
  border-top: 1px solid var(--border-color);
  margin-top: var(--spacing-3xl);
  /* Prevent layout shifts */
  min-height: 500px;
  contain: layout;
}

.preview-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
  /* Optimization */
  will-change: contents;
  isolation: isolate;
}

.preview-panel {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  /* Optimization for smooth rendering */
  will-change: transform;
  contain: layout style;
}

.preview-panel h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-lg);
  color: var(--text-primary);
}

.image-preview,
.svg-preview {
  position: relative;
  min-height: 300px;
  max-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.image-preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--border-radius-sm);
  display: block;
  margin: 0 auto;
}

.svg-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  background: var(--background-color);
  border-radius: var(--border-radius);
  /* Optimizations for smooth scrolling */
  will-change: contents;
  contain: layout style paint;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.svg-container svg {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  display: block;
  border-radius: var(--border-radius-sm);
}

.image-info,
.svg-info {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  background: var(--background-light);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  line-height: 1.4;
}

.image-info:empty,
.svg-info:empty {
  display: none;
}

.action-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Progress Section */
.progress-section {
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.progress-container {
  max-width: 500px;
  margin: 0 auto;
}

.progress-container h3 {
  margin-bottom: var(--spacing-xl);
  color: var(--text-primary);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  width: 0%;
  transition: width var(--transition-normal);
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 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-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Color swatch in progress text */
.color-swatch {
  display: inline-block;
  width: 16px;
  height: 16px;
  border-radius: 3px;
  border: 1px solid rgba(0, 0, 0, 0.2);
  vertical-align: text-bottom;
  margin-right: 6px;
  margin-bottom: 2px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Error Section */
.error-section {
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.error-container {
  max-width: 500px;
  margin: 0 auto;
  background: var(--surface-color);
  border: 1px solid #fecaca;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
}

.error-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-lg);
  color: var(--error-color);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(239, 68, 68, 0.1);
  border-radius: 50%;
}

.error-container h3 {
  color: var(--error-color);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.error-container p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

/* Features Section */
.features-section {
  background: var(--surface-color);
  margin: 0 calc(-1 * var(--spacing-lg));
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
}

.features-section h2 {
  text-align: center;
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-2xl);
  color: var(--text-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
}

.feature-card {
  background: var(--background-color);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-lg);
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-lg);
  background: rgba(71, 118, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 2rem;
  transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon {
  background: var(--primary-color);
  color: var(--background-color);
  transform: scale(1.1);
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0;
}

/* How It Works Section */
.how-it-works-section {
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
}

.how-it-works-section h2 {
  text-align: center;
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-2xl);
  color: var(--text-primary);
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
}

.step {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--primary-color);
  color: var(--background-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.step-content p {
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.6;
}

/* Footer */
.footer {
  background: var(--text-primary);
  color: var(--background-color);
  margin: 0 calc(-1 * var(--spacing-lg));
  margin-top: var(--spacing-3xl);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-2xl);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
}

.footer-section h4 {
  color: var(--background-color);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
  animation: footer-pulse-glow 2.5s ease-in-out infinite;
}

@keyframes footer-pulse-glow {
  0%, 100% {
    text-shadow: 
      0 0 10px rgba(255, 255, 255, 0.4),
      0 0 20px rgba(255, 255, 255, 0.2);
  }
  50% {
    text-shadow: 
      0 0 20px rgba(96, 165, 250, 0.8),
      0 0 35px rgba(96, 165, 250, 0.6),
      0 0 50px rgba(147, 197, 253, 0.4);
  }
}

.footer-section p {
  color: #94a3b8;
  margin-bottom: 0;
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: #94a3b8;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid #374151;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-lg);
  text-align: center;
}

.footer-bottom p {
  color: #94a3b8;
  font-size: var(--font-size-sm);
  margin: 0;
}

.footer-brand {
  color: var(--background-color);
  font-weight: 600;
  animation: footer-pulse-glow 2.5s ease-in-out infinite;
}

/* JavocSoft link styling */
.javocsoft-link {
  color: #94a3b8;
  text-decoration: none;
  font-weight: bold;
  transition: color var(--transition-fast);
}

.javocsoft-link:hover {
  color: var(--primary-color);
}

/* Tooltips */
.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: var(--spacing-xs);
  color: var(--text-muted);
  cursor: help;
  transition: all var(--transition-fast);
  vertical-align: middle;
  min-width: 22px;
  min-height: 22px;
  border-radius: 50%;
  padding: 2px;
}

.info-icon:hover {
  color: var(--primary-color);
  background: rgba(71, 118, 255, 0.1);
}

.info-icon svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.tooltip {
  position: absolute;
  background: var(--text-primary);
  color: var(--background-color);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  max-width: 300px;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
  pointer-events: none;
  opacity: 0;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
}

.tooltip.show {
  opacity: 1;
  transform: translateY(0);
}

/* Arrow pointing down (tooltip above cursor) */
.tooltip[data-position="top"]::before {
  content: '';
  position: absolute;
  top: 100%;
  left: var(--arrow-left, 20px);
  margin-left: -6px; /* Half of border-width to center the arrow */
  border-width: 6px;
  border-style: solid;
  border-color: var(--text-primary) transparent transparent transparent;
}

/* Arrow pointing up (tooltip below cursor) */
.tooltip[data-position="bottom"]::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: var(--arrow-left, 20px);
  margin-left: -6px; /* Half of border-width to center the arrow */
  border-width: 6px;
  border-style: solid;
  border-color: transparent transparent var(--text-primary) transparent;
}

.tooltip-title {
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
  color: var(--background-color);
}

.tooltip-description {
  font-size: calc(var(--font-size-sm) - 1px);
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.9);
}

/* Advanced Options Improvements */
.option-group label {
  display: flex;
  align-items: center;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  margin-bottom: 0; /* Override the default margin for checkboxes */
}

.checkbox-group .info-icon {
  margin-left: auto;
}

/* Quality Indicator */
.quality-indicator {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: var(--border-radius-md);
  border: 1px solid #e2e8f0;
}

.quality-indicator-header {
  margin-bottom: var(--spacing-md);
}

.indicator-label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.quality-indicator-bar {
  margin-bottom: var(--spacing-sm);
}

.indicator-track {
  position: relative;
  height: 8px;
  background: linear-gradient(to right, 
    #10b981 0%,
    #3b82f6 50%,
    #ef4444 100%
  );
  border-radius: 4px;
  margin-bottom: var(--spacing-md);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.indicator-marker {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  background: white;
  border: 3px solid var(--primary-color);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: left 0.3s ease;
  z-index: 2;
}

.indicator-labels {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.indicator-labels span {
  text-align: center;
}

.indicator-labels small {
  display: block;
  font-size: 0.85em;
  color: var(--text-muted);
  margin-top: 2px;
}

.label-left {
  text-align: left;
}

.label-right {
  text-align: right;
}

.quality-indicator-info {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--spacing-sm);
  background: white;
  border-radius: var(--border-radius-sm);
  border: 1px solid #e2e8f0;
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .preview-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .action-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  .steps-container {
    grid-template-columns: 1fr;
  }

  .step {
    flex-direction: column;
    text-align: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* Ko-Fi Support Button */
.kofi-container {
  margin-top: var(--spacing-md);
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.kofi-container .floatingchat {
  position: static !important;
  transform: none !important;
}

/* Ko-Fi widget responsive adjustments */
@media (max-width: 768px) {
  .kofi-container {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .drop-zone {
    padding: var(--spacing-2xl);
  }

  .upload-icon {
    width: 40px;
    height: 40px;
  }

  .feature-card,
  .step {
    padding: var(--spacing-lg);
  }

  .features-grid {
    gap: var(--spacing-lg);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
  }
  
  .kofi-container {
    justify-content: center;
  }
}