/* ========================================
   DEMO PAGE SPECIFIC STYLES
   ======================================== */

/* Demo Header */
.demo-header {
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
  border-bottom: 1px solid var(--color-border-light);
}

.demo-header h1 {
  margin-bottom: var(--spacing-sm);
}

/* Demo Container */
.demo-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Status Display */
.status-display {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  animation: slideDown 0.3s ease;
}

.status-display.success {
  background-color: #d1fae5;
  border-left: 4px solid var(--color-success);
}

.status-display.error {
  background-color: #fee2e2;
  border-left: 4px solid var(--color-error);
}

.status-display.warning {
  background-color: #fef3c7;
  border-left: 4px solid var(--color-warning);
}

.status-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.status-icon {
  font-size: 20px;
}

.status-message {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

/* Loading Spinner for Button */
.btn-loading .spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 8px;
  vertical-align: middle;
}

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

/* Main Demo Layout */
.demo-main {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  align-items: start;
}

/* Preview Section (Left Column) */
.preview-section {
  min-width: 0;
}

.preview-section .section-card {
  display: flex;
  flex-direction: column;
  height: 1225px;
  margin-bottom: 0;
}

/* Input Section (Right Column) */
.input-section {
  min-width: 0;
}

.input-results-section {
  display: flex;
  flex-direction: column;
  height: 1249px;
}

.results-card {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  margin-bottom: 0;
}

/* Section Card */
.section-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.section-card h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-dark);
}

/* Preview Section */
.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.preview-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.btn-control {
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-border-medium);
  background: var(--color-bg-white);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.btn-control:hover {
  background: var(--color-bg-gray);
  border-color: var(--color-primary);
}

.zoom-level {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  min-width: 50px;
  text-align: center;
}

/* Preview Empty State */
.preview-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--color-text-muted);
  min-height: 550px;
  flex: 1;
}

.empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-md);
}

.preview-empty-state h3 {
  font-size: var(--font-size-lg);
  color: var(--color-text-medium);
  margin-bottom: var(--spacing-xs);
}

.preview-empty-state p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Image Preview */
.image-preview-container {
  display: flex;
  flex-direction: column;
  min-height: 1115px;
  height: 1115px;
}

.image-preview-wrapper {
  position: relative;
  flex: 1;
  overflow: auto;
  background: var(--color-bg-main);
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-preview-wrapper:active {
  cursor: grabbing;
}

.image-preview {
  display: block;
  max-width: none;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
  margin: auto;
}

.pdf-canvas {
  display: block;
  max-width: none;
  height: auto;
  user-select: none;
  margin: auto;
}

.pdf-preview {
  text-align: center;
  padding: var(--spacing-xl);
}

.pdf-icon {
  font-size: 64px;
  display: block;
  margin-bottom: var(--spacing-md);
}

.pdf-file-name {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-dark);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-xs);
}

.label-hint {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-muted);
  margin-left: var(--spacing-xs);
}

/* File Upload */
.file-input-wrapper {
  position: relative;
  border: 2px dashed var(--color-border-medium);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  text-align: center;
  background: var(--color-bg-gray);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.file-input-wrapper:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-white);
}

.file-input {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  opacity: 0;
  cursor: pointer;
}

.file-input-display {
  pointer-events: none;
}

.file-icon {
  font-size: 32px;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.file-name {
  font-size: var(--font-size-sm);
  color: var(--color-text-medium);
}

/* File Info */
.file-info {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  background: var(--color-bg-gray);
}

.file-info-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.file-info-icon {
  font-size: 32px;
}

.file-info-text {
  flex: 1;
}

.file-info-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-dark);
  margin-bottom: 2px;
}

.file-info-size {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.btn-icon {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 24px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
}

.btn-icon:hover {
  background: var(--color-bg-white);
  color: var(--color-error);
}

/* Textarea */
.textarea-wrapper {
  position: relative;
}

.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-md);
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  resize: vertical;
  transition: all var(--transition-normal);
}

.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.btn-text {
  position: absolute;
  top: var(--spacing-xs);
  right: var(--spacing-xs);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-medium);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn-text:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* Button Spinner */
.btn-spinner {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* Results Section */
.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.results-output {
  background: var(--color-bg-gray);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  overflow-x: auto;
  max-height: 500px;
  overflow-y: auto;
  color: var(--color-text-dark);
  margin: 0;
}

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

/* Responsive Design */
@media (max-width: 992px) {
  .demo-main {
    grid-template-columns: 1fr;
  }

  .preview-section {
    order: 2;
  }

  .input-results-section {
    order: 1;
  }
}

@media (max-width: 768px) {
  .demo-header {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
  }

  .section-card {
    padding: var(--spacing-md);
  }

  .image-preview-container {
    min-height: 300px;
    max-height: 400px;
  }

  .preview-controls {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .demo-container {
    padding: 0 var(--spacing-sm);
  }

  .file-input-wrapper {
    padding: var(--spacing-lg);
  }

  .file-icon {
    font-size: 24px;
  }

  .results-output {
    font-size: 12px;
  }
}

/* ============================================================================
   Results Display Component
   ============================================================================ */

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.results-header h2 {
  margin-bottom: 0;
  font-size: var(--font-size-xl);
  color: var(--color-text-dark);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-2xl);
  flex: 1;
  color: var(--color-text-muted);
}

.empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.empty-state h3 {
  font-size: var(--font-size-lg);
  color: var(--color-text-medium);
  margin-bottom: var(--spacing-sm);
}

.empty-state p {
  max-width: 300px;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

#resultsContainer {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.results-display {
  background: #1e293b;
  color: #e2e8f0;
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
  font-size: 13px;
  line-height: 1.6;
  max-height: 600px;
  overflow-y: auto;
  flex: 1;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Scrollbar styling for results */
.results-display::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.results-display::-webkit-scrollbar-track {
  background: #0f172a;
  border-radius: var(--radius-sm);
}

.results-display::-webkit-scrollbar-thumb {
  background: #475569;
  border-radius: var(--radius-sm);
}

.results-display::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}

/* Button Styles */
.btn-secondary {
  background: white;
  color: var(--color-primary);
  border: 1px solid var(--color-border-medium);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn-secondary:hover {
  background: var(--color-bg-gray);
  border-color: var(--color-primary);
}

.btn-small {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}