/* Layout der PDF-Toolbox: Steuerung links, Seiten-Grid rechts. */

.toolbox {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 16px;
  padding: 16px;
  max-width: 1400px;
  margin: 0 auto;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hint {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin: 0 0 10px;
}

.action-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 10px;
}

.extract-row { display: flex; gap: 8px; }
.extract-row input { flex: 1; min-width: 0; }

/* Seiten-Grid */
.page-area {
  min-height: 70vh;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  background: var(--surface);
}

.empty-state {
  color: var(--text-dim);
  text-align: center;
  padding: 60px 20px;
}

.page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--thumb-size, 150px), 1fr));
  gap: 12px;
}

.page-card {
  position: relative;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 8px;
  cursor: grab;
  user-select: none;
  transition: border-color 0.12s, opacity 0.12s;
}

.page-card.selected { border-color: var(--accent); }
.page-card.dragging { opacity: 0.35; }
.page-card.drop-before { box-shadow: -4px 0 0 0 var(--accent-2); }
.page-card.drop-after { box-shadow: 4px 0 0 0 var(--accent-2); }

.page-thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  height: calc(var(--thumb-size, 150px) * 1.2);
  overflow: hidden;
  background: #fff2;
  border-radius: 4px;
}

.page-thumb img {
  max-width: 100%;
  max-height: 100%;
  transition: transform 0.15s;
  pointer-events: none;
}

.page-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  margin-top: 8px;
  font-size: 0.75rem;
}

.page-num { color: var(--text-dim); font-family: var(--mono); }

.doc-badge {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 0.7rem;
  color: #0b0e14;
  font-weight: 600;
}

.page-actions {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.12s;
}

.page-card:hover .page-actions { opacity: 1; }

.page-actions button {
  width: 26px;
  height: 26px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  font-size: 0.8rem;
}

.page-actions button:hover { border-color: var(--accent); }

.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  margin: 0 0 10px;
  cursor: pointer;
}

/* Lightbox: hochauflösende Einzelseiten-Vorschau */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgb(0 0 0 / 0.82);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox[hidden] { display: none; }

.lightbox-stage canvas,
.lightbox-stage img {
  max-width: 92vw;
  max-height: 88vh;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 8px 40px rgb(0 0 0 / 0.5);
}

.lightbox-btn {
  position: fixed;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 101;
}

.lightbox-btn:hover { border-color: var(--accent); }

.lightbox-close { top: 16px; right: 16px; }
.lightbox-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 16px; top: 50%; transform: translateY(-50%); }

.lightbox-caption {
  position: fixed;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-dim);
  font-size: 0.8rem;
  font-family: var(--mono);
}

@media (max-width: 900px) {
  .toolbox { grid-template-columns: 1fr; }
}