.qc-uploader-wrap {
  max-width: 760px;
  margin: 40px auto;
  padding: 28px;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(20,30,50,0.08);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}
.qc-title { font-size: 24px; margin: 0; color: #0b2545; text-align: center; }
.qc-subtitle { text-align: center; color: #5b6b80; margin-top: 8px; margin-bottom: 20px; }
.qc-upload-area { padding: 10px; }
.qc-drop-zone {
  border: 2px dashed #d7dde6;
  border-radius: 14px;
  padding: 34px;
  text-align: center;
  transition: all 180ms ease;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
}
.qc-drop-zone.qc-dragover { border-color: #2b8cff; background: #f0f7ff; transform: translateY(-3px); }
.qc-drop-inner { display: flex; flex-direction: column; align-items: center; gap: 11px; }
.qc-pdf-icon { width: 72px; height: 72px; }
.qc-drop-text { font-size: 16px; color: #344a63; margin: 6px 0; }
.qc-choose-btn { padding: 10px 18px; border-radius: 8px; background: #2b8cff; color: white; border: none; cursor: pointer; }
.qc-selected-files { margin-top: 12px; }
.qc-file-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 10px;
  border: 1px solid #edf1f7;
  border-radius: 8px;
  margin-bottom: 6px;
  color: #344a63;
  background: #fbfdff;
}
.qc-file-row small { color: #6b7c90; }
.qc-actions { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.qc-btn {
  padding: 12px 22px;
  border-radius: 10px;
  border: none;
  background: #e9f2ff;
  color: #0b2545;
  min-width: 160px;
  cursor: pointer;
  transition: all 150ms ease;
  box-shadow: 0 3px 10px rgba(15,30,60,0.04);
}
.qc-btn:hover { transform: translateY(-2px); }
.qc-btn-primary { background: linear-gradient(90deg,#2b8cff,#2265d6); color: white; }
.qc-split-options { display: none; margin: 18px auto 0; max-width: 460px; }
.qc-split-options.qc-visible { display: block; }
.qc-label { display: block; color: #0b2545; margin-bottom: 6px; font-weight: 600; }
.qc-split-pages, .qc-email-input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #d7dde6;
}
.qc-help { color: #6b7c90; font-size: 13px; margin-top: 6px; }
.qc-email-box { margin: 16px auto 0; max-width: 360px; }
.qc-limit-note { margin-top: 14px; text-align: center; color: #6b7c90; font-size: 13px; }
.qc-result { margin-top: 14px; min-height: 36px; text-align: center; }
.qc-loading { color: #2265d6; }
.qc-error {
  color: #c0392b;
  background: #fff5f4;
  border: 1px solid #ffd8d2;
  padding: 10px 12px;
  border-radius: 8px;
  display: inline-block;
}
.qc-download {
  display: inline-block;
  padding: 11px 18px;
  background: #28a745;
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
}
.qc-download:hover { color: #fff; opacity: 0.9; }
@media (max-width:640px) {
  .qc-uploader-wrap { padding: 18px; margin: 20px; }
  .qc-btn { width: 100%; }
  .qc-file-row { flex-direction: column; gap: 4px; }
}