/* ==========================================================
   IN-BROWSER PDF VIEWER STYLES
   ========================================================== */

.pdf-reader-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 80px);
  background-color: var(--bg-app);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.pdf-toolbar {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  z-index: 10;
}

.pdf-toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pdf-page-indicator {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-muted);
  background: var(--bg-surface-subtle);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.pdf-viewport-wrapper {
  flex: 1;
  overflow: auto;
  display: flex;
  justify-content: center;
  padding: 2rem 1rem;
  background-color: #334155;
}

[data-theme="dark"] .pdf-viewport-wrapper {
  background-color: #0f172a;
}

.pdf-canvas-container {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  background-color: #ffffff;
  border-radius: 4px;
  max-width: 100%;
  transition: transform 0.2s ease;
}

.pdf-fallback-embed {
  width: 100%;
  height: 100%;
  border: none;
}