/* Document Viewer Modal Styles */

.doc-viewer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.doc-viewer-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.doc-viewer-modal {
  background: #fff;
  border-radius: 12px;
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.doc-viewer-overlay.visible .doc-viewer-modal {
  transform: scale(1);
}

.doc-viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid #dee2e6;
  background: var(--chatbot-primary, #2563eb);
  color: #fff;
  border-radius: 12px 12px 0 0;
}

.doc-viewer-title {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  margin-right: 12px;
}

.doc-viewer-actions {
  display: flex;
  gap: 8px;
}

.doc-viewer-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.doc-viewer-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

.doc-viewer-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  font-size: 15px;
  line-height: 1.7;
}

/* Markdown content styling */
.doc-viewer-content h1,
.doc-viewer-content h2,
.doc-viewer-content h3,
.doc-viewer-content h4 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: #1a1a1a;
}

.doc-viewer-content h1:first-child,
.doc-viewer-content h2:first-child {
  margin-top: 0;
}

.doc-viewer-content h1 { font-size: 1.8em; }
.doc-viewer-content h2 { font-size: 1.5em; }
.doc-viewer-content h3 { font-size: 1.25em; }

.doc-viewer-content p {
  margin-bottom: 1em;
}

.doc-viewer-content ul,
.doc-viewer-content ol {
  margin-bottom: 1em;
  padding-left: 1.5em;
}

.doc-viewer-content li {
  margin-bottom: 0.5em;
}

.doc-viewer-content a {
  color: var(--chatbot-primary, #2563eb);
}

.doc-viewer-content code {
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.doc-viewer-content pre {
  background: #f1f5f9;
  padding: 16px;
  border-radius: 8px;
  overflow-x: auto;
  margin-bottom: 1em;
}

.doc-viewer-content pre code {
  background: none;
  padding: 0;
}

.doc-viewer-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1em;
}

.doc-viewer-content th,
.doc-viewer-content td {
  border: 1px solid #dee2e6;
  padding: 8px 12px;
  text-align: left;
}

.doc-viewer-content th {
  background: #f8f9fa;
  font-weight: 600;
}

.doc-viewer-content blockquote {
  border-left: 4px solid var(--chatbot-primary, #2563eb);
  margin: 1em 0;
  padding: 0.5em 1em;
  background: #f8f9fa;
}

/* Loading state */
.doc-viewer-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: #6c757d;
}

.doc-viewer-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #e9ecef;
  border-top-color: var(--chatbot-primary, #2563eb);
  border-radius: 50%;
  animation: doc-viewer-spin 0.8s linear infinite;
  margin-bottom: 16px;
}

@keyframes doc-viewer-spin {
  to { transform: rotate(360deg); }
}

/* Error state */
.doc-viewer-error {
  text-align: center;
  padding: 40px 20px;
  color: #6c757d;
}

.doc-viewer-error-icon {
  font-size: 48px;
  color: #dc3545;
  margin-bottom: 16px;
}

.doc-viewer-error-message {
  margin-bottom: 20px;
}

.doc-viewer-error-btn {
  background: var(--chatbot-primary, #2563eb);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
  display: inline-block;
}

.doc-viewer-error-btn:hover {
  background: var(--chatbot-primary-hover, #1d4ed8);
  color: #fff;
}

/* Reference link styling */
.ref-doc-link {
  color: var(--chatbot-primary, #2563eb);
  cursor: pointer;
  text-decoration: none;
}

.ref-doc-link:hover {
  text-decoration: underline;
}

/* Mobile responsive */
@media (max-width: 600px) {
  .doc-viewer-overlay {
    padding: 0;
  }

  .doc-viewer-modal {
    max-height: 100vh;
    height: 100vh;
    border-radius: 0;
  }

  .doc-viewer-header {
    border-radius: 0;
  }

  .doc-viewer-content {
    padding: 16px;
  }
}