.teacher-submission {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fbfdfc;
}

.teacher-submission summary {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding: 15px 17px;
  cursor: pointer;
}

.teacher-submission summary span,
.muted-review {
  color: var(--muted);
  font-size: 11px;
}

.teacher-submission > .anonymous-work,
.teacher-submission > .feedback-card,
.teacher-submission > .empty,
.teacher-submission > .muted-review {
  margin: 12px 16px;
}

.rubric-toggle {
  align-self: center;
}

.rubric-import {
  display: grid;
  grid-template-columns: minmax(220px, .8fr) minmax(280px, 1.4fr);
  gap: 16px;
  padding: 18px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #f7faf8;
}

.rubric-import p {
  margin: 0 0 5px;
  color: var(--mid);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 1.2px;
}

.rubric-import h4 {
  margin: 0 0 8px;
  font-size: 18px;
}

.rubric-import span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.rubric-import textarea {
  margin: 0;
}

.rubric-import-actions {
  grid-column: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.rubric-builder-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: 12px 0;
}

.rubric-table-wrap,
.rubric-display-wrap {
  width: 100%;
  overflow-x: auto;
}

.rubric-editor,
.rubric-display {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.rubric-editor th,
.rubric-editor td,
.rubric-display th,
.rubric-display td {
  padding: 10px;
  border: 1px solid var(--border);
  vertical-align: top;
  text-align: left;
}

.rubric-editor th,
.rubric-display th {
  background: var(--pale);
  color: var(--green);
  font-size: 11px;
}

.rubric-editor input,
.rubric-editor textarea {
  min-width: 140px;
  margin: 0;
}

.rubric-editor [data-field="max_points"] {
  min-width: 75px;
  width: 75px;
}

.remove-rubric-column {
  display: block;
  padding: 4px 0 0;
  border: 0;
  background: transparent;
  color: var(--danger);
  font-size: 9px;
}

.rubric-display td {
  min-width: 170px;
  color: #466158;
  font-size: 12px;
  line-height: 1.55;
  white-space: pre-wrap;
}

.rubric-display th small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-weight: 500;
  line-height: 1.45;
}

.student-preview {
  margin: 28px 0;
  border: 1px solid #9fc4b6;
  border-radius: 14px;
  overflow: hidden;
}

.student-preview > summary {
  padding: 16px 18px;
  cursor: pointer;
  background: var(--pale);
  color: var(--green);
  font-weight: 800;
}

.preview-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 15px 18px 0;
}

.preview-tabs button[aria-selected="true"] {
  border-color: var(--green);
  background: var(--green);
  color: white;
}

.student-preview-screen {
  margin: 15px 18px 18px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: white;
}

.preview-student-head {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.preview-student-head span {
  color: var(--mid);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: 1.2px;
}

.preview-student-head b {
  font-size: 21px;
}

.student-preview-screen textarea,
.student-preview-screen input[type="file"] {
  margin: 9px 0;
}

.preview-review-row {
  display: grid;
  grid-template-columns: 1fr 130px 1fr;
  gap: 10px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
}

.preview-closed {
  padding: 10px 12px;
  border-radius: 9px;
  background: #f0f3f2;
  color: var(--muted);
}

.stage-warning {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 14px 0;
  padding: 13px 15px;
  border: 1px solid #e3bd70;
  border-radius: 11px;
  background: #fff8e7;
  color: #765516;
  font-size: 13px;
}

.stage-warning strong {
  min-width: 48px;
  font-size: 18px;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.finished-pill {
  border-color: #90bfae !important;
  background: #e7f5ef;
  color: var(--green) !important;
  font-weight: 800;
}

.question-builder-panel,.question-editor,.reflection-panel,.teacher-results,.class-insights{margin:22px 0;padding:18px;border:1px solid var(--border);border-radius:14px;background:#fbfdfc}
.question-editor-head,.submit-row{display:flex;align-items:center;justify-content:space-between;gap:14px}
.question-fields,.insight-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.inline-form-error{color:var(--danger);font-size:12px;font-weight:750}
.assignment-questions article,.history-card,.mark-point{margin:10px 0;padding:13px;border:1px solid var(--border);border-radius:10px;background:white}
.mark-point{display:flex;flex-direction:column;gap:5px}.mark-point.awarded{border-left:5px solid #318267}.mark-point.missed{border-left:5px solid #bd5555}.mark-point span{color:var(--muted);font-size:12px}
.results-table-wrap{overflow-x:auto}.teacher-results table{width:100%;min-width:1100px;border-collapse:collapse}.teacher-results th,.teacher-results td{padding:10px;border:1px solid var(--border);text-align:left;vertical-align:top;font-size:11px}.teacher-results th{background:var(--pale);color:var(--green)}
@media(max-width:760px){.question-fields,.insight-grid{grid-template-columns:1fr}.submit-row{align-items:flex-start;flex-direction:column}}

.live-progress {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0 28px;
}

.student-progress {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fbfdfc;
}

.presence-dot {
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #bac7c2;
}

.student-progress.active .presence-dot {
  background: #d99b28;
}

.student-progress.finished {
  border-color: #91bfad;
  background: #edf8f3;
}

.student-progress.finished .presence-dot {
  background: #21875f;
}

.student-progress b,
.student-progress small {
  display: block;
}

.student-progress small {
  margin-top: 4px;
  color: var(--muted);
  line-height: 1.35;
}

.finished-control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 24px;
  padding: 20px;
  border: 1px solid #bed5cc;
  border-radius: 14px;
  background: var(--pale);
}

.finished-control.is-finished {
  border-color: #79af9b;
  background: #e2f4ec;
}

.finished-control b,
.finished-control span {
  display: block;
}

.finished-control span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
}

.submission-upload-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 16px 0;
}

.submission-upload-grid label {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: #f7faf8;
}

.submission-upload-grid small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.submission-image-preview {
  position: relative;
  margin: 14px 0 20px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #f7faf8;
}

.submission-image-preview img,
.handwritten-work {
  display: block;
  max-width: 100%;
  max-height: 720px;
  margin: 0 auto;
  object-fit: contain;
  border-radius: 7px;
}

.submission-image-preview button {
  margin-top: 10px;
  color: var(--danger);
}

.anonymous-work .handwritten-work + div {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  white-space: pre-wrap;
}

.submission-file-ready,
.document-placeholder {
  margin: 14px 0;
  padding: 16px;
  border: 1px solid #a9c9bc;
  border-radius: 11px;
  background: #edf7f2;
}

.submission-file-ready b,
.submission-file-ready span,
.document-heading b,
.document-heading span {
  display: block;
}

.submission-file-ready span,
.document-heading span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
}

.submitted-document {
  margin: 16px 0 22px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #f7faf8;
}

.document-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: white;
}

.document-heading > div:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.document-heading a,
.document-heading button {
  padding: 8px 10px;
  border: 1px solid #a9c9bc;
  border-radius: 8px;
  background: #edf7f2;
  color: var(--green);
  font-size: 11px;
  font-weight: 800;
  text-decoration: none;
}

.document-load-status {
  margin: 0;
  padding: 10px 16px;
  color: var(--muted);
  font-size: 12px;
}

.document-load-status:empty {
  display: none;
}

.document-load-status.error {
  color: #963737;
}

.document-load-status button {
  margin-left: 6px;
}

.submission-document-frame {
  display: block;
  width: 100%;
  height: min(72vh, 850px);
  border: 0;
  background: white;
}

.submission-document-image {
  display: block;
  max-width: 100%;
  max-height: 850px;
  margin: 0 auto;
  padding: 14px;
  object-fit: contain;
}

.document-no-preview {
  margin: 0;
  padding: 32px 20px;
  color: var(--muted);
  text-align: center;
}

@media(max-width:800px) {
  .rubric-import {
    grid-template-columns: 1fr;
  }

  .rubric-import-actions {
    grid-column: auto;
    align-items: stretch;
    flex-direction: column;
  }

  .preview-review-row {
    grid-template-columns: 1fr;
  }

  .live-progress,
  .submission-upload-grid {
    grid-template-columns: 1fr;
  }

  .finished-control {
    align-items: stretch;
    flex-direction: column;
  }

  .document-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .submission-document-frame {
    height: 64vh;
  }
}