#pptxm {
  max-width: 720px;
  margin: 0 auto;
  font-family: sans-serif;
}

/* ── Tabs ── */
.pptxm-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 2px solid #ddd;
}
.pptxm-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  padding: 10px 20px;
  font-size: 15px;
  cursor: pointer;
  color: #666;
}
.pptxm-tab:hover { color: #2271b1; }
.pptxm-tab-active {
  color: #2271b1;
  border-bottom-color: #2271b1;
  font-weight: 600;
}

/* ── Upload tab ── */
#pptxm-drop {
  border: 2px dashed #bbb;
  border-radius: 10px;
  padding: 36px 24px;
  text-align: center;
  transition: background .2s;
}
#pptxm-drop.pptxm-dragover {
  background: #eef6ff;
  border-color: #2271b1;
}
#pptxm-add {
  background: #2271b1;
  color: #fff;
  border: none;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 15px;
  cursor: pointer;
}
#pptxm-add:hover { background: #135e96; }

/* ── NC tab ── */
.pptxm-nc-top {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  align-items: center;
}
#pptxm-nc-folder {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 14px;
}
#pptxm-nc-load {
  background: #2271b1;
  color: #fff;
  border: none;
  padding: 8px 20px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}
#pptxm-nc-load:hover:not(:disabled) { background: #135e96; }
#pptxm-nc-load:disabled { background: #ccc; cursor: default; }

/* NC file list */
#pptxm-nc-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}
#pptxm-nc-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f8f9fa;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 6px;
}
#pptxm-nc-list li.sortable-ghost {
  opacity: .4;
  background: #d0eaff;
}
.pptxm-nc-item-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.pptxm-nc-label {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pptxm-nc-fname {
  font-size: 12px;
  color: #666;
}
.pptxm-nc-ver {
  font-size: 12px;
  padding: 2px 6px;
  border: 1px solid #ccc;
  border-radius: 4px;
  color: #444;
  background: #fff;
  max-width: 100%;
}

/* NC buttons */
.pptxm-nc-btns {
  display: flex;
  gap: 10px;
  margin-bottom: 8px;
}
#pptxm-nc-dl {
  flex: 1;
  background: #00a32a;
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: 6px;
  font-size: 15px;
  cursor: pointer;
}
#pptxm-nc-dl:hover:not(:disabled) { background: #007a1f; }
#pptxm-nc-save {
  flex: 1;
  background: #0073aa;
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: 6px;
  font-size: 15px;
  cursor: pointer;
}
#pptxm-nc-save:hover:not(:disabled) { background: #005177; }
#pptxm-nc-dl:disabled, #pptxm-nc-save:disabled { background: #ccc; cursor: default; }

/* ── Shared ── */
.pptxm-sub {
  color: #888;
  font-size: 13px;
  margin: 10px 0 0;
}
#pptxm-body { margin-top: 20px; }
.pptxm-hint {
  font-size: 13px;
  color: #666;
  margin: 0 0 8px;
}
#pptxm-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}
#pptxm-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f8f9fa;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 6px;
}
#pptxm-list li.sortable-ghost {
  opacity: .4;
  background: #d0eaff;
}
.pptxm-handle {
  cursor: grab;
  color: #aaa;
  font-size: 18px;
  user-select: none;
  flex-shrink: 0;
}
.pptxm-num {
  color: #999;
  font-size: 13px;
  min-width: 18px;
  flex-shrink: 0;
}
.pptxm-name {
  flex: 1;
  font-size: 14px;
  word-break: break-all;
}
.pptxm-remove {
  background: none;
  border: none;
  color: #bbb;
  cursor: pointer;
  font-size: 16px;
  padding: 0 4px;
  flex-shrink: 0;
}
.pptxm-remove:hover { color: #c00; }
#pptxm-merge {
  width: 100%;
  background: #00a32a;
  color: #fff;
  border: none;
  padding: 14px;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
}
#pptxm-merge:hover:not(:disabled) { background: #007a1f; }
#pptxm-merge:disabled { background: #ccc; cursor: default; }
#pptxm-progress, #pptxm-nc-progress {
  text-align: center;
  color: #666;
  margin-top: 14px;
  font-size: 14px;
}
#pptxm-result, #pptxm-nc-result { margin-top: 14px; }
.pptxm-dl {
  display: block;
  background: #2271b1;
  color: #fff;
  text-align: center;
  text-decoration: none;
  padding: 14px;
  border-radius: 6px;
  font-size: 16px;
}
.pptxm-dl:hover { background: #135e96; color: #fff; }
.pptxm-err {
  color: #c00;
  background: #fff0f0;
  border: 1px solid #fcc;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 14px;
}
.pptxm-ok {
  color: #0f5132;
  background: #d1e7dd;
  border: 1px solid #a3cfbb;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 14px;
}