.pdf-tools-page .pdf-tools-layout {
  display: grid;
  grid-template-columns: minmax(180px, 240px) minmax(0, 1fr);
  gap: 1rem;
  width: min(980px, 100%);
  margin: 0 auto 2.5rem;
}

.pdf-tools-page .pdf-tools-panel {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  padding: 0.75rem;
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
}

.pdf-tools-page .pdf-tools-panel button {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  min-height: 3rem;
  padding: 0.78rem 0.9rem;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: #334155;
  font: inherit;
  font-weight: 850;
  text-align: left;
  cursor: pointer;
}

.pdf-tools-page .pdf-tools-panel button:hover,
.pdf-tools-page .pdf-tools-panel button.active {
  border-color: rgba(37, 99, 235, 0.18);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
  color: #1e3a8a;
}

.pdf-tools-page .pdf-tools-panel i {
  width: 1.1rem;
  text-align: center;
}

.ec-tool-page .pdf-tools-card {
  width: 100% !important;
  margin: 0 !important;
}

.pdf-tools-page .drop-zone {
  margin-bottom: 1rem;
}

.pdf-tools-page .drop-zone.dragging {
  border-color: var(--tool-blue) !important;
  background: rgba(219, 234, 254, 0.54) !important;
}

.pdf-tools-page .ec-choose-file {
  width: max-content;
  min-width: 11rem;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  cursor: pointer;
}

.pdf-tools-page .ec-choose-file span {
  color: #fff !important;
  font-size: 0.92rem !important;
  font-weight: 900 !important;
}

.pdf-tools-page .pdf-tools-files {
  display: grid;
  gap: 0.5rem;
  margin: 1rem 0;
  color: #64748b;
  font-weight: 750;
}

.pdf-tools-page .pdf-tools-files div {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.55rem;
  align-items: center;
  min-height: 2.4rem;
  padding: 0.62rem 0.75rem;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 10px;
  background: rgba(248, 250, 252, 0.82);
  color: #0f172a;
}

.pdf-tools-page .pdf-tools-files span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pdf-tools-page .pdf-tools-files small {
  color: #64748b;
}

.pdf-tools-page .pdf-tools-options {
  display: grid;
  gap: 0.9rem;
  margin: 1rem 0 1.1rem;
}

.pdf-tools-page .pdf-tools-options p {
  color: #64748b;
  font-weight: 750;
}

.pdf-tools-page .pdf-tools-options label {
  display: grid;
  gap: 0.45rem;
  color: #0f172a;
  font-weight: 850;
}

.pdf-tools-page .pdf-tools-options input,
.pdf-tools-page .pdf-tools-options select {
  width: 100%;
  min-height: 3rem;
  padding: 0 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.32) !important;
  border-radius: 10px !important;
  background: white !important;
  color: #0f172a !important;
  font: inherit;
  font-weight: 700;
}

.pdf-tools-page #convertBtn {
  width: 100%;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  cursor: pointer;
}

.pdf-tools-page .pdf-tools-status {
  min-height: 1.5rem;
  margin-top: 0.85rem;
  color: #475569;
  font-weight: 800;
  text-align: center;
}

.pdf-tools-page .pdf-tools-status[data-type="success"] {
  color: #166534;
}

.pdf-tools-page .pdf-tools-status[data-type="error"] {
  color: #991b1b;
}

.pdf-tools-page .pdf-page-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 0.7rem;
  margin: 0 0 1.1rem;
  padding: 0.85rem;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 14px;
  background: rgba(248, 250, 252, 0.6);
  max-height: 460px;
  overflow-y: auto;
}

.pdf-tools-page .pdf-thumb {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.4rem 0.55rem;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 10px;
  background: #fff;
  color: #475569;
  font: inherit;
  font-weight: 800;
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.12s ease, box-shadow 0.12s ease, transform 0.12s ease;
}

.pdf-tools-page .pdf-thumb:hover {
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
  transform: translateY(-1px);
}

.pdf-tools-page .pdf-thumb canvas {
  width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.14);
  background: #fff;
}

.pdf-tools-page .pdf-thumb .pdf-thumb-skeleton {
  width: 100%;
  aspect-ratio: 1 / 1.414;
  border-radius: 4px;
  background: linear-gradient(100deg, #eef2f7 30%, #f8fafc 50%, #eef2f7 70%);
  background-size: 200% 100%;
  animation: pdf-thumb-shimmer 1.1s ease-in-out infinite;
}

@keyframes pdf-thumb-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.pdf-tools-page .pdf-thumb .pdf-thumb-mark {
  position: absolute;
  top: 0.45rem;
  right: 0.45rem;
  width: 1.45rem;
  height: 1.45rem;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  font-size: 0.8rem;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.25);
}

/* Remove mode = red cross, Extract mode = green check */
.pdf-tools-page .pdf-page-thumbs.mode-remove .pdf-thumb.selected {
  border-color: #ef4444;
  background: rgba(254, 226, 226, 0.55);
  color: #991b1b;
}

.pdf-tools-page .pdf-page-thumbs.mode-remove .pdf-thumb.selected canvas {
  opacity: 0.55;
}

.pdf-tools-page .pdf-page-thumbs.mode-remove .pdf-thumb.selected .pdf-thumb-mark {
  display: flex;
  background: #ef4444;
}

.pdf-tools-page .pdf-page-thumbs.mode-extract .pdf-thumb.selected {
  border-color: #16a34a;
  background: rgba(220, 252, 231, 0.6);
  color: #166534;
}

.pdf-tools-page .pdf-page-thumbs.mode-extract .pdf-thumb.selected .pdf-thumb-mark {
  display: flex;
  background: #16a34a;
}

.pdf-tools-page .pdf-thumb-hint {
  grid-column: 1 / -1;
  margin: 0;
  padding: 1.1rem 0.9rem;
  text-align: center;
  color: #64748b;
  font-weight: 750;
  font-size: 0.9rem;
}

/* Organize mode: draggable, reorderable cells */
.pdf-tools-page .pdf-page-thumbs.mode-organize .pdf-thumb {
  cursor: grab;
}

.pdf-tools-page .pdf-page-thumbs.mode-organize .pdf-thumb:active {
  cursor: grabbing;
}

.pdf-tools-page .pdf-page-thumbs.mode-organize .pdf-thumb.dragging {
  opacity: 0.45;
  border-color: rgba(37, 99, 235, 0.5);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.pdf-tools-page .pdf-thumb-move {
  display: none;
  gap: 0.3rem;
}

.pdf-tools-page .pdf-page-thumbs.mode-organize .pdf-thumb-move {
  display: flex;
}

.pdf-tools-page .pdf-thumb-move button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.55rem;
  height: 1.55rem;
  padding: 0;
  border: 1px solid rgba(148, 163, 184, 0.4);
  border-radius: 7px;
  background: #fff;
  color: #475569;
  font-size: 0.7rem;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.pdf-tools-page .pdf-thumb-move button:hover {
  background: rgba(37, 99, 235, 0.1);
  color: #1e3a8a;
}

@media (max-width: 760px) {
  .pdf-tools-page .pdf-tools-layout {
    grid-template-columns: 1fr;
  }

  .pdf-tools-page .pdf-tools-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}