/* PDF Analysis Panel Styles */
.pdf-backdrop {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 800;
}
.pdf-panel {
  display: none;
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: min(90vw, 720px);
  max-height: 85vh;
  background: var(--color-bg-secondary, #161b22);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 12px;
  z-index: 801;
  overflow: hidden;
  display: none;
  flex-direction: column;
}
.pdf-panel.open { display: flex; }
.pdf-backdrop.open { display: block; }

.pdf-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border, #30363d);
  font-weight: 600;
  font-size: 0.95rem;
}
.pdf-header button {
  background: none; border: none;
  color: var(--color-text-muted, #8b949e);
  font-size: 1.3rem; cursor: pointer;
}

.pdf-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

/* Upload zone */
.pdf-upload-zone {
  border: 2px dashed var(--color-border, #30363d);
  border-radius: 8px;
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  color: var(--color-text-muted, #8b949e);
}
.pdf-upload-zone:hover,
.pdf-upload-zone.drag-over {
  border-color: var(--color-accent-gemini, #a3e635);
  background: rgba(163, 230, 53, 0.05);
}
.pdf-upload-zone .icon { font-size: 2rem; display: block; margin-bottom: 8px; }
.pdf-upload-zone .hint { font-size: 0.8rem; margin-top: 8px; opacity: 0.7; }

/* Document card */
.pdf-doc-card {
  background: var(--color-bg-tertiary, #21262d);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 12px;
}
.pdf-doc-card .doc-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text, #e6edf3);
  display: flex;
  align-items: center;
  gap: 8px;
}
.pdf-doc-card .doc-meta {
  font-size: 0.78rem;
  color: var(--color-text-muted, #8b949e);
  margin-top: 4px;
}
.pdf-doc-card .doc-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.pdf-doc-card .doc-actions button {
  padding: 4px 12px;
  border-radius: 4px;
  border: 1px solid var(--color-border, #30363d);
  background: var(--color-bg-secondary, #161b22);
  color: var(--color-text, #e6edf3);
  cursor: pointer;
  font-size: 0.8rem;
  transition: background 0.15s;
}
.pdf-doc-card .doc-actions button:hover {
  background: var(--color-bg-tertiary, #21262d);
}
.pdf-doc-card .doc-actions button.primary {
  background: var(--color-accent-gemini, #a3e635);
  color: #0d1117;
  border-color: var(--color-accent-gemini, #a3e635);
  font-weight: 600;
}
.pdf-doc-card .doc-actions button.danger {
  color: #f85149;
  border-color: #f85149;
}

/* Progress bar */
.pdf-progress {
  margin: 12px 0;
}
.pdf-progress-bar {
  height: 4px;
  background: var(--color-bg-tertiary, #21262d);
  border-radius: 2px;
  overflow: hidden;
}
.pdf-progress-fill {
  height: 100%;
  background: var(--color-accent-gemini, #a3e635);
  transition: width 0.3s;
  width: 0%;
}
.pdf-progress-label {
  font-size: 0.75rem;
  color: var(--color-text-muted, #8b949e);
  margin-top: 4px;
}

/* Result area */
.pdf-result {
  background: var(--color-panel, #12121a);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 8px;
  padding: 16px;
  margin-top: 12px;
  font-size: 0.88rem;
  line-height: 1.6;
  max-height: 400px;
  overflow-y: auto;
  white-space: pre-wrap;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

/* Q&A input */
.pdf-qa-bar {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.pdf-qa-bar input {
  flex: 1;
  padding: 8px 12px;
  background: var(--color-bg-tertiary, #21262d);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 6px;
  color: var(--color-text, #e6edf3);
  font-size: 0.85rem;
}
.pdf-qa-bar input::placeholder {
  color: var(--color-text-muted, #8b949e);
}
.pdf-qa-bar button {
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--color-accent-gemini, #a3e635);
  background: var(--color-accent-gemini, #a3e635);
  color: #0d1117;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.85rem;
}

/* Provider selector */
.pdf-provider-select {
  padding: 4px 8px;
  background: var(--color-bg-tertiary, #21262d);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 4px;
  color: var(--color-text, #e6edf3);
  font-size: 0.8rem;
}