/**
 * PDF Viewer Styles
 * Styles for smooth scrolling PDF viewer with zoom controls
 */

.pdf-viewer-container {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-tertiary, #0d1117);
  border-radius: 8px;
  overflow: hidden;
}

/* PDF Controls */
.pdf-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px;
  background-color: var(--bg-secondary, #161b22);
  border-bottom: 1px solid var(--border-color, #21262d);
  flex-shrink: 0;
}

.pdf-control-btn {
  background-color: var(--bg-primary, #0d1117);
  color: var(--text-primary, #e6edf3);
  border: 1px solid var(--border-color, #30363d);
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pdf-control-btn:hover {
  background-color: var(--bg-tertiary, #21262d);
  border-color: var(--accent-green, #58a6ff);
  color: var(--accent-green, #58a6ff);
}

.pdf-control-btn:active {
  transform: scale(0.95);
}

.pdf-zoom-level {
  color: var(--text-primary, #e6edf3);
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 14px;
  font-weight: 600;
  min-width: 60px;
  text-align: center;
}

/* PDF Scroll Container */
.pdf-scroll-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 20px;
  background-color: var(--bg-primary, #0d1117);
  scroll-behavior: smooth;
}

/* Custom scrollbar for PDF container */
.pdf-scroll-container::-webkit-scrollbar {
  width: 12px;
}

.pdf-scroll-container::-webkit-scrollbar-track {
  background: var(--bg-primary, #0d1117);
  border-radius: 6px;
}

.pdf-scroll-container::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary, #30363d);
  border-radius: 6px;
  border: 2px solid var(--bg-primary, #0d1117);
}

.pdf-scroll-container::-webkit-scrollbar-thumb:hover {
  background: var(--accent-green, #58a6ff);
}

/* PDF Page Container */
.pdf-page-container {
  margin: 0 auto 24px auto;
  text-align: center;
  position: relative;
  background-color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  border-radius: 4px;
  display: inline-block;
}

.pdf-page-container canvas {
  display: block;
  margin: 0 auto;
  border-radius: 4px;
}

.pdf-page-container:last-child {
  margin-bottom: 0;
}

/* PDF Page Label */
.pdf-page-label {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background-color: rgba(0, 0, 0, 0.7);
  color: white;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-family: var(--font-mono, monospace);
  font-weight: 600;
  pointer-events: none;
}

/* Loading State */
.pdf-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 400px;
  color: var(--text-secondary, #8b949e);
  font-size: 18px;
  font-family: var(--font-mono, monospace);
}

.pdf-loading::before {
  content: '';
  display: inline-block;
  width: 40px;
  height: 40px;
  margin-right: 12px;
  border: 4px solid var(--border-color, #30363d);
  border-top-color: var(--accent-green, #58a6ff);
  border-radius: 50%;
  animation: pdf-spin 0.8s linear infinite;
}

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

/* Error State */
.pdf-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 400px;
  padding: 40px;
  text-align: center;
  color: var(--accent-red, #f85149);
}

.pdf-error p:first-child {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.pdf-error-details {
  color: var(--text-secondary, #8b949e);
  font-family: var(--font-mono, monospace);
  font-size: 14px;
  background-color: var(--bg-secondary, #161b22);
  padding: 12px 16px;
  border-radius: 6px;
  border: 1px solid var(--border-color, #30363d);
  max-width: 600px;
  margin-top: 8px;
  word-wrap: break-word;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  .pdf-viewer-container {
    background-color: #0d1117;
  }
  
  .pdf-scroll-container {
    background-color: #010409;
  }
  
  .pdf-controls {
    background-color: #161b22;
  }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .pdf-scroll-container {
    padding: 10px;
  }
  
  .pdf-page-container {
    margin-bottom: 16px;
  }
  
  .pdf-controls {
    gap: 8px;
    padding: 8px;
  }
  
  .pdf-control-btn {
    padding: 6px 12px;
    font-size: 14px;
  }
  
  .pdf-zoom-level {
    font-size: 12px;
    min-width: 50px;
  }
  
  .pdf-page-label {
    font-size: 10px;
    padding: 3px 8px;
  }
}

/* Print Styles */
@media print {
  .pdf-controls {
    display: none;
  }
  
  .pdf-scroll-container {
    overflow: visible;
    padding: 0;
  }
  
  .pdf-page-container {
    page-break-after: always;
    page-break-inside: avoid;
    box-shadow: none;
    margin: 0;
  }
  
  .pdf-page-label {
    display: none;
  }
}