/* TechTools — pdf-to-image styles [v2.1 §4.2 D5] */
.drop-zone {
  border: 2px dashed rgba(255,255,255,0.15);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.drop-zone.dragover {
  border-color: var(--accent-doc);
  background: rgba(6,182,212,0.06);
}
.drop-zone p { margin-bottom: 12px; }
.drop-zone .file-name {
  margin-top: 12px;
  font-size: 12px;
  color: var(--accent-doc);
  word-break: break-all;
}
.pi-options {
  display: flex;
  gap: 18px;
  align-items: center;
  margin-top: 20px;
  flex-wrap: wrap;
}
.pi-options label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}
.pi-options select.tool-select {
  padding: 7px 12px;
  border-radius: 8px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  cursor: pointer;
}
.pi-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.pi-results {
  margin-top: 24px;
}
.pi-pages {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.pi-page {
  width: 150px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.1);
  overflow: hidden;
  background: rgba(0,0,0,0.3);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.pi-page:hover {
  transform: translateY(-2px);
  border-color: var(--accent-doc);
}
.pi-page img {
  width: 100%;
  display: block;
}
.pi-page .pi-page-label {
  padding: 6px 8px;
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
}