/* RC2-2: bulk student registration. */
.slBulkStudentPanel {
  margin-top: 14px;
  padding: 16px;
  border: 1px solid #dbe4f0;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 10px 28px rgba(15, 23, 42, .07);
}

.slBulkStudentHead {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.slBulkStudentHead span {
  display: inline-flex;
  height: 22px;
  align-items: center;
  padding: 0 9px;
  border-radius: 999px;
  background: #dcfce7;
  color: #166534;
  font-size: 12px;
  font-weight: 900;
}

.slBulkStudentHead h3 {
  margin: 8px 0 4px;
  color: #0f172a;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0;
}

.slBulkStudentHead p {
  margin: 0;
  color: #64748b;
  font-weight: 700;
}

.slBulkStudentOptions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 8px;
}

.slBulkStudentOptions input,
.slBulkStudentText {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #f8fafc;
  color: #0f172a;
}

.slBulkStudentText {
  min-height: 132px;
  padding: 12px;
  resize: vertical;
  font-family: inherit;
  line-height: 1.55;
}

.slBulkStudentActions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.slBulkExcelTools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
}

.slBulkExcelTools input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.slBulkFileButton {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid #2563eb;
  border-radius: 8px;
  background: #2563eb;
  color: #fff;
  font-size: 14px;
  font-weight: 900;
  line-height: 1.2;
  cursor: pointer;
}

.slBulkExcelTools span {
  color: #475569;
  font-size: 13px;
  font-weight: 800;
}

.slBulkStudentActions button {
  min-height: 42px;
}

.slBulkPreview {
  margin-top: 10px;
}

.slBulkPreviewHead {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid #dbe4f0;
  border-radius: 8px 8px 0 0;
  background: #f8fafc;
  color: #0f172a;
  font-weight: 900;
}

.slBulkPreviewHead span {
  color: #64748b;
  font-size: 13px;
}

.slBulkPreviewTableWrap {
  max-height: 260px;
  overflow: auto;
  border: 1px solid #dbe4f0;
  border-top: 0;
  border-radius: 0 0 8px 8px;
}

.slBulkPreviewTable {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.4;
}

.slBulkPreviewTable th,
.slBulkPreviewTable td {
  padding: 9px 10px;
  border-bottom: 1px solid #e2e8f0;
  text-align: left;
  white-space: nowrap;
}

.slBulkPreviewTable th {
  position: sticky;
  top: 0;
  background: #f1f5f9;
  color: #334155;
  font-weight: 900;
}

.slBulkPreviewTable tr.has-warning td {
  background: #fff7ed;
  color: #9a3412;
}

.slBulkStudentResult {
  margin-top: 10px;
  padding: 11px 12px;
  border-radius: 8px;
  background: #f1f5f9;
  color: #334155;
  font-weight: 800;
  line-height: 1.45;
}

.slBulkStudentResult b,
.slBulkStudentResult span,
.slBulkStudentResult small {
  display: block;
}

.slBulkStudentResult small {
  margin-top: 4px;
  color: #64748b;
}

#portfolio .slTimelineActions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

#portfolio .slTimelineActions button {
  min-height: 36px;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .slBulkStudentPanel {
    padding: 14px;
  }

  .slBulkStudentOptions {
    grid-template-columns: 1fr;
  }

  .slBulkStudentActions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .slBulkExcelTools {
    display: grid;
    grid-template-columns: 1fr;
  }

  #portfolio .slTimelineActions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}