/* ============================================================
   Sigify - PDF Page Extractor
   Only NEW style additions. Reuses global.css classes wherever
   possible: .tool-card, .drop-zone, .btn*, .action-bar,
   .progress-container, .preview-grid, .preview-item, etc.
   ============================================================ */

/* --- Page card --- */
.pr-page-card {
  position: relative;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
  transition: var(--transition);
  cursor: pointer;
  user-select: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pr-page-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.pr-page-card.selected {
  border-color: var(--primary);
  background: rgba(55,122,209,0.06);
  box-shadow: var(--shadow-hover);
}

.pr-page-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  font-size: 0.9rem;
}

.pr-page-num {
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.4px;
}

.pr-page-card input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.pr-page-thumb-wrap {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 6px;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.pr-page-thumb {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #fff;
  display: block;
}

.pr-page-thumb-loading {
  position: absolute;
  inset: 0;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 0.85rem;
}

/* --- File info row (reused style from pdf-rotator) --- */
.pr-info-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin: 18px 0 8px;
}

.pr-info-item {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pr-info-label {
  font-size: 0.78rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.pr-info-item strong {
  font-size: 1.02rem;
  color: var(--text-dark);
  font-weight: 700;
  word-break: break-all;
}

/* --- Toolbar --- */
.pr-toolbar {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 14px 0;
}

.pr-toolbar-left,
.pr-toolbar-right {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.pr-counter {
  font-size: 0.9rem;
  color: var(--text-mid);
  margin-left: 4px;
}

.pr-counter strong {
  color: var(--primary-dark);
  font-weight: 700;
}

/* --- Mode chips row --- */
.ex-mode-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  margin: 14px 0 0;
}

.ex-mode-label {
  font-weight: 700;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.ex-mode-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.88rem;
  cursor: pointer;
  transition: var(--transition);
}

.ex-mode-chip:has(input:checked) {
  background: rgba(55,122,209,0.10);
  border-color: var(--primary);
  color: var(--primary-dark);
  font-weight: 600;
}

.ex-mode-chip input[type="radio"] {
  accent-color: var(--primary);
  cursor: pointer;
}

/* --- Range input row --- */
.ex-range-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin: 12px 0;
}

.ex-range-row label {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.92rem;
  flex: 1 1 280px;
}

.ex-range-row label code {
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--primary-dark);
}

.ex-range-row input[type="text"] {
  flex: 1 1 240px;
  min-width: 220px;
  font-size: 0.95rem;
  padding: 10px 14px;
}

.ex-range-hint {
  font-size: 0.85rem;
  flex-basis: 100%;
}

.ex-range-hint.ok    { color: #2f8f4f; }
.ex-range-hint.err   { color: #b8324a; }

/* --- Selection summary --- */
.ex-summary {
  background: var(--bg-light);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  margin: 14px 0 4px;
  font-size: 0.95rem;
  color: var(--text-mid);
}

.ex-summary strong {
  color: var(--text-dark);
  margin-right: 4px;
}

#exSummaryText code {
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85rem;
  color: var(--primary-dark);
}

/* --- Result block --- */
.pr-result {
  background: var(--bg-card);
  border: 1.5px solid rgba(55,122,209,0.20);
  border-radius: var(--radius-sm);
  padding: 28px 20px;
  text-align: center;
  margin-top: 22px;
  display: none;
}

.pr-result.shown { display: block; }

.pr-result h3 {
  font-size: 1.25rem;
  color: var(--text-dark);
  margin: 8px 0 6px;
}

/* --- Loading state --- */
.pr-loading {
  text-align: center;
  padding: 30px 16px;
  color: var(--text-mid);
}

.pr-spinner {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 4px solid var(--bg-light);
  border-top-color: var(--primary);
  animation: pr-spin 0.9s linear infinite;
  margin: 0 auto 12px;
}

@keyframes pr-spin {
  to { transform: rotate(360deg); }
}

/* --- Mobile --- */
@media (max-width: 720px) {
  .pr-toolbar { flex-direction: column; align-items: stretch; }
  .pr-toolbar-left { justify-content: center; }
  .ex-mode-row { flex-direction: column; align-items: stretch; }
  .ex-range-row { flex-direction: column; align-items: stretch; }
  .ex-range-row input[type="text"] { width: 100%; }
}