.pnum-hero {
  padding-top: 30px;
  background: linear-gradient(140deg, #f1f4fb 0%, #e8edf8 38%, #edf2f9 100%);
}

.pnum-hero-content {
  max-width: 1320px;
}

.pnum-layout {
  margin-top: 12px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 0;
  border: 1px solid #cfd7e6;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 22px 44px rgba(15, 23, 42, 0.08);
}

.pnum-layout.panel-locked {
  grid-template-columns: minmax(0, 1fr);
}

.pnum-preview-pane {
  background: #f3f5fa;
  padding: 20px;
}

.pnum-control-pane {
  background: #f8f9fc;
  border-left: 1px solid #cfd7e6;
  position: sticky;
  top: 78px;
  height: auto;
  overflow: visible;
}

.pnum-control-head {
  padding: 14px 18px;
  border-bottom: 1px solid #d8deeb;
  background: #ffffff;
}

.pnum-control-head h2 {
  margin: 0;
  text-align: center;
  font-size: 30px;
  font-weight: 600;
  color: #0f172a;
}

.pnum-upload-box {
  min-height: 126px;
  border-radius: 16px;
  border: 1px dashed #9db7f6;
  background: #f6f8ff;
}

.pnum-upload-progress {
  margin-top: 8px;
  border: 1px solid #dbe3f3;
  border-radius: 10px;
  background: #ffffff;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #334155;
  font-size: 13px;
}

.pnum-upload-progress.hidden,
.pnum-queue-section.hidden,
.pnum-preview-wrap.hidden {
  display: none !important;
}

.pnum-upload-progress .spinner {
  width: 14px;
  height: 14px;
  border: 2px solid #cbd5e1;
  border-top-color: #0b5fff;
  border-radius: 999px;
  animation: pnumSpin 0.8s linear infinite;
}

@keyframes pnumSpin {
  to { transform: rotate(360deg); }
}

.pnum-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  margin: 4px 0 10px;
}

.pnum-file-select,
.pnum-add-btn {
  height: 42px;
  border-radius: 10px;
  border: 1px solid #cfd7e6;
  background: #ffffff;
  color: #1f2937;
  font-size: 14px;
}

.pnum-file-select {
  width: 100%;
  padding: 0 10px;
}

.pnum-file-note {
  height: 42px;
  border-radius: 10px;
  border: 1px solid #cfd7e6;
  background: #ffffff;
  color: #334155;
  font-size: 13px;
  display: flex;
  align-items: center;
  padding: 0 10px;
}

.pnum-add-btn {
  padding: 0 14px;
  font-family: "Montserrat", sans-serif;
  font-weight: 600;
  cursor: pointer;
}

.pnum-file-select:focus,
.pnum-add-btn:focus,
.pnum-page-cell input:focus,
.field-label input:focus {
  outline: none;
  border-color: #93c5fd;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.pnum-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.pnum-head-row h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: #0f172a;
}

.pnum-head-row p {
  margin: 0;
  font-size: 13px;
  color: #64748b;
}

.pnum-queue {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(188px, 1fr));
  gap: 12px;
}

.pnum-item {
  border: 1px solid #d4daea;
  border-radius: 12px;
  background: #ffffff;
  padding: 10px;
  display: grid;
  gap: 8px;
}

.pnum-item.active {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.14);
}

.pnum-thumb {
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  background: #f8fbff;
  overflow: hidden;
}

.pnum-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pnum-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.pnum-item-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  color: #334155;
}

.pnum-badge {
  font-size: 10px;
  color: #1e3a8a;
  background: #eaf1ff;
  border: 1px solid #cfe0ff;
  border-radius: 999px;
  padding: 2px 7px;
}

.pnum-item-meta {
  font-size: 11px;
  color: #64748b;
}

.pnum-item-actions {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 6px;
  align-items: center;
}

.pnum-select-btn {
  border: 1px solid #dbe3f3;
  background: #ffffff;
  color: #334155;
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 12px;
  cursor: pointer;
}

.pnum-select-btn.active {
  background: #fff1f2;
  border-color: #fecaca;
  color: #b91c1c;
}

.pnum-item-actions .reorder-btn {
  padding: 6px 8px;
  font-size: 11px;
  min-width: 0;
}

.pnum-item-actions .remove-img-btn {
  margin: 0;
}

.pnum-preview-empty {
  margin-top: 12px;
  min-height: 320px;
  border: 1px dashed #c9d5ea;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: #64748b;
  background: #f8fbff;
  font-size: 15px;
}

.pnum-preview-wrap {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.pnum-canvas-wrap {
  border: 1px solid #d5dced;
  border-radius: 16px;
  background: #ffffff;
  padding: 12px;
  min-height: 300px;
  display: grid;
  place-items: center;
}

#pnumCanvas {
  width: auto;
  max-width: 100%;
  max-height: 520px;
  height: auto;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid #dbe3f3;
}

.pnum-controls {
  padding: 12px 18px 16px;
  display: grid;
  gap: 10px;
}

.pnum-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.field-label {
  display: grid;
  gap: 6px;
  font-family: "Montserrat", sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: #334155;
}

.field-label input {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  height: 40px;
  padding: 0 10px;
  font-size: 14px;
  background: #ffffff;
}

.range-inline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.range-inline input[type="range"] {
  flex: 1;
}

.range-inline span {
  min-width: 44px;
  text-align: right;
  font-size: 13px;
  color: #475569;
}

#pnumColor {
  width: 100%;
  height: 40px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  background: #ffffff;
  padding: 4px;
}

.pnum-section-card {
  border: 1px solid #dde3ef;
  border-radius: 12px;
  background: #ffffff;
  padding: 12px;
  display: grid;
  gap: 8px;
}

.pnum-side-by-side {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.pnum-position-grid {
  display: grid;
  grid-template-columns: repeat(3, 26px);
  grid-template-rows: repeat(3, 26px);
  gap: 2px;
  width: fit-content;
  padding: 4px;
  border: 1px solid #cad4e3;
  border-radius: 8px;
  background: #f8fbff;
}

.pnum-pos-btn {
  border: 1px solid #dbe3f3;
  background: #ffffff;
  border-radius: 4px;
  cursor: pointer;
  padding: 0;
}

.pnum-pos-btn.active {
  background: #ef4444;
  border-color: #ef4444;
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.16);
}

.pnum-hidden-select {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.pnum-pages-mode {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.pnum-mini-chip {
  border: 1px solid #dbe3f3;
  border-radius: 9px;
  background: #f8fafc;
  color: #64748b;
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 600;
  font-family: "Montserrat", sans-serif;
  cursor: pointer;
}

.pnum-mini-chip.active {
  border-color: #ef4444;
  background: #fff1f2;
  color: #dc2626;
}

.pnum-page-range {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.pnum-page-range.hidden {
  display: none !important;
}

.pnum-page-cell {
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: #64748b;
}

.pnum-page-cell input {
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  height: 36px;
  padding: 0 8px;
  font-size: 13px;
}

.pnum-check-line {
  margin-top: 2px;
}

.pnum-stats-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: #334155;
}

.pnum-metric {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.pnum-metric strong {
  font-size: 12px;
  font-weight: 600;
  color: #0f172a;
}

.pnum-metric:not(:last-child)::after {
  content: "|";
  color: #94a3b8;
  margin-left: 4px;
}

#pnumStatus {
  min-height: 24px;
}

.pnum-action-row {
  display: grid;
  gap: 10px;
}

.pnum-action-row .primary-btn,
.pnum-action-row .secondary-btn {
  border-radius: 12px;
  min-height: 52px;
  font-size: 17px;
  font-weight: 600;
}

.pnum-action-row .primary-btn {
  background: #ef2f2f;
}

.pnum-action-row .secondary-btn {
  background: #8f96a3;
}

@media (max-width: 1180px) {
  .pnum-layout {
    grid-template-columns: 1fr;
  }

  .pnum-control-pane {
    position: static;
    top: auto;
    height: auto;
    border-left: 0;
    border-top: 1px solid #cfd7e6;
    overflow: visible;
  }
}

@media (max-width: 760px) {
  .pnum-hero {
    padding-top: 18px;
  }

  .pnum-toolbar {
    grid-template-columns: 1fr;
  }

  .pnum-head-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .pnum-queue {
    grid-template-columns: repeat(auto-fill, minmax(145px, 1fr));
  }

  .pnum-item-actions {
    grid-template-columns: 1fr 1fr;
  }

  .pnum-grid-2,
  .pnum-page-range,
  .pnum-side-by-side {
    grid-template-columns: 1fr;
  }
}