/* excel-diff-checker.css */

.xl-upload-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1rem;
}
@media (max-width: 680px) {
  .xl-upload-grid { grid-template-columns: 1fr; }
}

.xl-upload-panel {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.xl-upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}

.xl-upload-zone:hover,
.xl-upload-zone.drag-over {
  border-color: var(--color-primary);
  background: rgba(99, 102, 241, 0.04);
}

.xl-upload-zone.file-loaded {
  border-color: #16a34a;
  background: rgba(34, 197, 94, 0.05);
}

.xl-upload-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.xl-upload-icon { font-size: 2rem; margin-bottom: 0.35rem; }

.xl-upload-zone p {
  margin: 0.15rem 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.xl-hint {
  font-size: 0.78rem !important;
  color: var(--text-muted) !important;
}

.xl-file-info {
  font-size: 0.78rem;
  color: var(--text-muted);
  min-height: 1.2em;
}

.xl-options {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.inline-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}

.inline-group label {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  margin: 0;
}

.inline-group select {
  padding: 0.3rem 0.6rem;
  font-size: 0.85rem;
}

/* Stats */
.diff-stats {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
}

.diff-stat {
  padding: 0.3rem 0.85rem;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
}

.stat-added    { background: rgba(34, 197, 94, 0.15); color: #16a34a; border: 1px solid rgba(34, 197, 94, 0.3); }
.stat-removed  { background: rgba(239, 68, 68, 0.15); color: #dc2626; border: 1px solid rgba(239, 68, 68, 0.3); }
.stat-changed  { background: rgba(234, 179, 8, 0.15); color: #a16207; border: 1px solid rgba(234, 179, 8, 0.3); }
.stat-unchanged { background: var(--bg-secondary); color: var(--text-muted); border: 1px solid var(--border-color); }

/* Legend */
.xl-legend {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
  align-items: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  display: inline-block;
  flex-shrink: 0;
}

.legend-dot.added        { background: rgba(34, 197, 94, 0.5); }
.legend-dot.removed      { background: rgba(239, 68, 68, 0.5); }
.legend-dot.changed      { background: rgba(234, 179, 8, 0.4); }
.legend-dot.cell-changed { background: rgba(99, 102, 241, 0.45); }

/* Table */
.xl-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.xl-diff-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  font-family: var(--font-mono);
}

.xl-diff-table th {
  background: var(--bg-secondary);
  padding: 0.45rem 0.75rem;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 1;
}

.xl-diff-table td {
  padding: 0.35rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  white-space: pre;
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: top;
}

.xl-diff-table tr.row-added   td { background: rgba(34, 197, 94, 0.1); }
.xl-diff-table tr.row-removed td { background: rgba(239, 68, 68, 0.1); text-decoration: line-through; opacity: 0.75; }
.xl-diff-table tr.row-changed td { background: rgba(234, 179, 8, 0.07); }

.xl-diff-table td.cell-changed {
  background: rgba(99, 102, 241, 0.15);
  border-left: 2px solid var(--color-primary);
}

.row-num {
  color: var(--text-muted);
  font-size: 0.72rem;
  user-select: none;
  text-align: right;
  padding-right: 0.5rem;
  min-width: 2.5rem;
}

.row-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 100px;
  user-select: none;
}

.badge-added   { background: rgba(34, 197, 94, 0.25); color: #16a34a; }
.badge-removed { background: rgba(239, 68, 68, 0.25); color: #dc2626; }
.badge-changed { background: rgba(234, 179, 8, 0.3);  color: #a16207; }