:root,
[data-theme="light"] {
  --bg: #e4e9f0;
  --card: #f6f8fb;
  --text: #101828;
  --muted: #475467;
  --border: #b8c4d4;
  --input-bg: #ffffff;
  --stat-bg: #e9eef4;
  /* ~20% darker than former #f3f5f8 — clearer hover on cards */
  --ghost-hover: #dce3ed;
  --row-hover: #d2dae6;
  --table-row-hover: color-mix(in srgb, var(--accent) 10%, var(--ghost-hover));
  --badge-bg: #e3ebf8;
  --badge-text: #1e3a8a;
  --shadow: 0 10px 36px rgba(16, 24, 40, 0.08);
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --hover-duration: 0.3s;
  --radius: 14px;
  --problems-panel-bg: #ffffff;
  --problems-table-bg: #ffffff;
  --problems-row-a: #e5edf1;
  --problems-row-b: #ffffff;
  --problems-cell-text: #1a2332;
  --problems-header-num-bg: #31e52d;
  --problems-wrap-border: color-mix(in srgb, var(--border) 85%, #94a3b8);
  --problems-divider: #ffffff;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

[data-theme="dark"] {
  --bg: #0f131a;
  --card: #1a2130;
  --text: #edf1f7;
  --muted: #a3adbc;
  --border: #3a4558;
  --input-bg: #121820;
  --stat-bg: #222b3a;
  --ghost-hover: #2b3445;
  --row-hover: #333d50;
  --table-row-hover: color-mix(in srgb, var(--accent) 14%, var(--ghost-hover));
  --badge-bg: #2a3650;
  --badge-text: #a8c4f5;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.42);
  --accent: #6b9af2;
  --accent-hover: #5a88e8;
  --hover-duration: 0.3s;
  --problems-panel-bg: var(--card);
  --problems-table-bg: color-mix(in srgb, var(--card) 88%, #000);
  --problems-row-a: #252f42;
  --problems-row-b: #1a2130;
  --problems-cell-text: var(--text);
  --problems-header-num-bg: #31e52d;
  --problems-wrap-border: var(--border);
  --problems-divider: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

.hidden {
  display: none !important;
}

.portal {
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.screen {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.screen-auth {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px 32px;
  box-shadow: var(--shadow);
  position: relative;
}

.auth-card-top {
  display: flex;
  justify-content: flex-end;
  margin: -8px 0 4px;
}

.school-title {
  margin: 0 0 8px;
  font-size: 1.5rem;
  font-weight: 650;
  text-align: center;
  line-height: 1.25;
}

.school-sub {
  margin: 0 0 28px;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

.auth-form .field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.auth-form .field span {
  font-size: 0.875rem;
  color: var(--muted);
}

.auth-form input {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  background: var(--input-bg);
  color: var(--text);
}

.auth-form input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-color: var(--accent);
}

.btn-primary {
  width: 100%;
  margin-top: 8px;
  padding: 13px 16px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: wait;
}

.btn-secondary {
  width: 100%;
  margin-top: 8px;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--ghost-hover);
}

.error {
  margin: 0 0 8px;
  color: #b42318;
  font-size: 0.9rem;
}

.screen-app.is-test-active .app-bar {
  display: none;
}

.screen-app.is-test-active .app-main {
  padding-top: 8px;
}

.screen-app.is-test-active .btn-scroll-top {
  display: none;
}

.exam-guard-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.exam-guard-modal.hidden {
  display: none;
}

.exam-guard-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, #000 55%, transparent);
}

.exam-guard-dialog {
  position: relative;
  z-index: 1;
  width: min(100%, 420px);
  margin: 0;
  box-shadow: 0 12px 40px color-mix(in srgb, #000 25%, transparent);
}

.exam-guard-dialog h3 {
  margin: 0 0 10px;
}

.student-confirm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 18px;
}

.student-confirm-actions .btn-ghost,
.student-confirm-actions .btn-primary {
  width: auto;
  margin-top: 0;
  min-width: 7rem;
}

.admin-demo-reset {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
}

.admin-demo-reset .field-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 10px 0;
}

.admin-demo-reset input {
  width: 6rem;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font: inherit;
}

.student-bundle-tests .student-bundle-test,
.student-bundle-tests .student-bundle-pick {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.student-bundle-tests .student-bundle-test.is-done {
  opacity: 0.85;
}

.student-bundle-tests .bundle-step-mark {
  flex: 0 0 auto;
  width: 1.25rem;
  text-align: center;
}

.student-bundle-tests .row-link-main {
  flex: 1 1 auto;
  min-width: 0;
}

.student-bundle-pick-meta {
  flex: 0 1 auto;
  text-align: right;
}

.exam-guard-dialog .exam-guard-reason {
  margin: 0 0 8px;
}

.exam-guard-dialog .exam-guard-count {
  margin: 0 0 14px;
  font-size: 0.9rem;
}

.exam-guard-dialog .btn-primary {
  width: 100%;
}

body.exam-guard-open {
  overflow: hidden;
}

body.exam-guard-open #screen-app {
  pointer-events: none;
  user-select: none;
}

body.exam-guard-open #exam-guard-modal {
  pointer-events: auto;
}

body.exam-guard-open #exam-guard-modal .exam-guard-dialog {
  user-select: text;
}

.student-test-run {
  min-height: min(70vh, 640px);
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.student-test-shell {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
}

.student-test-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  color: var(--muted);
}

.student-test-timer-wrap strong {
  font-variant-numeric: tabular-nums;
  color: var(--text);
  font-size: 1.05rem;
}

.student-test-timer.is-urgent {
  color: #f87171;
}

.student-test-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px 24px;
}

.student-test-q {
  margin: 0 0 20px;
  font-size: 1.08rem;
  line-height: 1.45;
  font-weight: 600;
}

.student-test-opts {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.student-test-opt {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--input-bg);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  font: inherit;
  line-height: 1.35;
}

.student-test-opt:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  background: var(--ghost-hover);
}

.student-test-opt.is-selected {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--card));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent);
}

.student-test-opt-letter {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--muted);
  min-width: 1.25rem;
}

.student-test-card .btn-confirm-answer {
  width: 100%;
  margin-top: 4px;
}

.screen-app {
  max-width: 960px;
}

.app-bar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.app-bar-school {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.app-bar-head {
  min-width: 0;
  flex: 1;
}

.app-bar-user {
  margin: 4px 0 0;
  font-size: 1.35rem;
  font-weight: 650;
}

.breadcrumbs {
  margin: 10px 0 0;
}

.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
  line-height: 1.35;
}

.breadcrumbs-list li {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
}

.breadcrumbs-list li + li::before {
  content: "›";
  margin: 0 8px;
  color: var(--muted);
  flex-shrink: 0;
}

.breadcrumbs a,
.breadcrumbs button.crumb-link {
  padding: 0;
  border: none;
  background: none;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  text-align: left;
  text-decoration: none;
}

.breadcrumbs a:hover,
.breadcrumbs button.crumb-link:hover {
  text-decoration: underline;
}

.breadcrumbs .crumb-current {
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: min(280px, 70vw);
}

.btn-ghost {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
  transition:
    background var(--hover-duration) ease,
    border-color var(--hover-duration) ease,
    color var(--hover-duration) ease;
}

.btn-ghost:hover {
  background: var(--ghost-hover);
}

.app-bar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.staff-tests-hint {
  margin: -4px 0 10px;
  font-size: 0.9rem;
}

.panel-staff-tests {
  --staff-pool-done: #22c55e;
}

.staff-tests-pools {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 8px;
}

.staff-tests-pool {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px 8px;
  background: color-mix(in srgb, var(--stat-bg) 35%, var(--card));
}

.panel-staff-tests .staff-tests-pool--active {
  border-color: color-mix(in srgb, var(--accent) 22%, var(--border));
  border-left: 3px solid color-mix(in srgb, var(--accent) 70%, var(--border));
}

.panel-staff-tests .staff-tests-pool--done {
  border-color: color-mix(in srgb, var(--staff-pool-done) 20%, var(--border));
  border-left: 3px solid color-mix(in srgb, var(--staff-pool-done) 65%, var(--border));
}

.staff-tests-pool-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
}

.staff-tests-pool-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
}

.staff-tests-pool-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0.85;
}

.panel-staff-tests .staff-tests-pool--active .staff-tests-pool-badge {
  background: color-mix(in srgb, var(--accent) 10%, var(--card));
  color: color-mix(in srgb, var(--accent) 55%, var(--text));
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border));
}

.panel-staff-tests .staff-tests-pool--active .staff-tests-pool-badge::before {
  background: color-mix(in srgb, var(--accent) 80%, var(--muted));
}

.panel-staff-tests .staff-tests-pool--done .staff-tests-pool-badge {
  background: color-mix(in srgb, var(--staff-pool-done) 10%, var(--card));
  color: color-mix(in srgb, var(--staff-pool-done) 45%, var(--text));
  border: 1px solid color-mix(in srgb, var(--staff-pool-done) 16%, var(--border));
}

.panel-staff-tests .staff-tests-pool--done .staff-tests-pool-badge::before {
  background: color-mix(in srgb, var(--staff-pool-done) 75%, var(--muted));
}

.staff-tests-pool-count {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
}

.panel-staff-tests .staff-tests-pool-list {
  margin: 0;
  padding: 2px 4px 0;
  border-radius: 8px;
  background: transparent;
}

.staff-tests-pool-list li.staff-tests-empty {
  padding: 8px 4px 10px;
  border-bottom: none;
}

.panel-staff-tests .staff-tests-pool--active .staff-tests-pool-list li.row-link:hover {
  background: color-mix(in srgb, var(--accent) 12%, var(--ghost-hover));
}

.panel-staff-tests .staff-tests-pool--done .staff-tests-pool-list li.row-link:hover {
  background: color-mix(in srgb, var(--staff-pool-done) 14%, var(--ghost-hover));
}

.data-table tbody tr.row-link {
  cursor: pointer;
}

.data-table tbody tr.row-link:hover td {
  background: var(--table-row-hover, color-mix(in srgb, var(--accent) 8%, transparent));
}

.btn-theme {
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  line-height: 1;
  transition:
    background var(--hover-duration) ease,
    border-color var(--hover-duration) ease;
}

.btn-theme:hover {
  background: var(--ghost-hover);
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 16px;
}

.exam-blocks-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 4px;
}

.exam-blocks-stack > .panel-block {
  margin-bottom: 0;
}

.panel-block .lead.muted {
  margin: -4px 0 12px;
  font-size: 0.88rem;
}

.panel h3 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.panel-collapse {
  padding: 0;
  overflow: hidden;
}

.panel-collapse.is-open {
  overflow: visible;
}

.panel-collapse .collapse-trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 22px;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  font: inherit;
}

.panel-collapse .collapse-trigger-text {
  flex: 1;
  min-width: 0;
}

.panel-collapse .collapse-trigger h3 {
  margin: 0;
  font-size: 1.05rem;
}

.panel-collapse .collapse-hint {
  display: block;
  margin-top: 4px;
  font-size: 0.85rem;
  font-weight: normal;
  color: var(--muted);
}

.panel-collapse .collapse-hint-row {
  margin-top: 10px;
}

.panel-collapse .collapse-hint-row .metric-columns {
  margin-top: 0;
}

.panel-collapse .collapse-hint-row .metric-cell {
  padding: 8px 10px;
}

.panel-collapse .collapse-hint-row .metric-value {
  font-size: 0.88rem;
}

.panel-collapse .collapse-chevron {
  flex-shrink: 0;
  color: var(--muted);
  font-size: 1.25rem;
  line-height: 1;
  display: inline-block;
  transition: transform 0.8s ease;
}

.panel-collapse.is-open .collapse-chevron {
  transform: rotate(90deg);
}

.panel-collapse .collapse-body {
  display: grid;
  grid-template-rows: 0fr;
  padding: 0 22px;
  border-top: 1px solid transparent;
  transition:
    grid-template-rows 0.8s ease,
    padding-bottom 0.8s ease,
    border-color 0.8s ease;
}

.panel-collapse .collapse-body-inner {
  overflow: hidden;
  min-height: 0;
}

.panel-collapse.is-open .collapse-body {
  grid-template-rows: 1fr;
  padding-bottom: 20px;
  border-top-color: var(--border);
}

.panel-collapse.is-open .collapse-body-inner {
  overflow: visible;
}

.panel-collapse .collapse-body-inner > .panel,
.panel-collapse .collapse-body-inner > .panel-warn {
  margin-top: 16px;
  margin-bottom: 0;
}

.panel-collapse .collapse-body-inner > .panel + .panel {
  margin-top: 12px;
}

li.student-row {
  flex-wrap: wrap;
  gap: 4px 12px;
}

li.student-row .student-row-meta {
  text-align: right;
  max-width: 100%;
  line-height: 1.35;
}

.panel .list-plain.list-students {
  max-height: min(520px, 60vh);
  overflow-y: auto;
  padding-right: 4px;
}

.panel-stats .list-exited {
  margin-top: 12px;
  max-height: 220px;
  overflow-y: auto;
}

.panel-exam-head .class-detail-title {
  margin-bottom: 4px;
}

.metric-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 10px 12px;
  margin-top: 14px;
}

.metric-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  background: color-mix(in srgb, var(--border) 35%, transparent);
  border: 1px solid var(--border);
  border-radius: 10px;
  min-width: 0;
}

.metric-label {
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.2;
}

.metric-value {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.3;
  word-break: break-word;
}

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: 4px;
}

.data-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.data-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--card);
  box-shadow: 0 1px 0 var(--border);
}

.data-table tbody tr:hover td {
  background: var(--table-row-hover, color-mix(in srgb, var(--accent) 6%, transparent));
}

.data-table td.num {
  text-align: right;
  white-space: nowrap;
  width: 1%;
}

.student-table-wrap .btn-students-expand {
  display: block;
  width: 100%;
  margin-top: 12px;
  padding: 10px 14px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 10px;
}

.panel-students,
.panel-problems-table {
  overflow: hidden;
}

.panel-problems-table.panel-warn {
  background: var(--problems-panel-bg);
  border-color: var(--problems-wrap-border);
  color: var(--text);
}

.panel-problems-table.panel-warn h3 {
  color: var(--text);
}

.panel-problems-table .problem-panel-meta {
  color: var(--muted);
}

.student-table-scroll {
  overflow-x: hidden;
  margin-top: 4px;
  max-width: 100%;
}

.data-table.table-students {
  table-layout: fixed;
  min-width: 0;
  width: 100%;
  font-size: 0.84rem;
}

.data-table.table-students th,
.data-table.table-students td {
  border-right: 1px solid var(--border);
  padding: 8px 6px;
  vertical-align: middle;
}

.data-table.table-students th:last-child,
.data-table.table-students td:last-child {
  border-right: none;
}

.data-table.table-students th:nth-child(1),
.data-table.table-students td:nth-child(1) {
  width: 34%;
  max-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.data-table.table-students th:nth-child(2),
.data-table.table-students td:nth-child(2) {
  width: 22%;
  text-align: center;
  white-space: nowrap;
}

.data-table.table-students th:nth-child(3),
.data-table.table-students td:nth-child(3) {
  width: 18%;
  text-align: center;
}

.data-table.table-students th:nth-child(4),
.data-table.table-students td:nth-child(4) {
  width: 26%;
  text-align: center;
}

.data-table.table-students td.num {
  text-align: center;
}

.data-table.table-students td:nth-child(2) .cell-submission {
  display: inline-block;
  font-weight: 600;
}

.panel-students .tag {
  padding: 2px 7px;
  font-size: 0.7rem;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: middle;
}

@media (max-width: 380px) {
  .data-table.table-students {
    font-size: 0.78rem;
  }

  .data-table.table-students th,
  .data-table.table-students td {
    padding: 7px 4px;
  }

  .data-table.table-students th:nth-child(1),
  .data-table.table-students td:nth-child(1) {
    width: 30%;
  }

  .data-table.table-students th:nth-child(4),
  .data-table.table-students td:nth-child(4) {
    width: 28%;
  }
}

.tag {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.2;
}

.tag-ok {
  color: var(--text);
  background: color-mix(in srgb, var(--border) 50%, transparent);
}

.tag-warn {
  color: #fbbf24;
  background: color-mix(in srgb, #fbbf24 18%, transparent);
  border: 1px solid color-mix(in srgb, #fbbf24 35%, transparent);
}

.panel-muted-inline {
  padding: 14px 18px;
  margin-bottom: 12px;
}

.panel-nested {
  padding: 0;
  margin: 0;
  border: none;
  background: transparent;
}

.panel-demo {
  border-style: dashed;
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
}

.panel-demo-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.panel-demo-head h3 {
  margin: 0;
}

.panel-teacher-exam-editor {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.panel-teacher-exam-editor.panel-collapse:not(.is-open) .collapse-body {
  display: none;
  padding: 0;
  border-top: none;
}

.panel-teacher-exam-editor.panel-collapse.is-open .collapse-body {
  display: block;
  grid-template-rows: none;
  padding: 0 22px 20px;
  border-top-color: var(--border);
}

.panel-teacher-exam-editor .collapse-body-inner > .lead {
  margin-top: 16px;
}

.panel-students-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
  margin-bottom: 12px;
}

.panel-students-head h3 {
  margin: 0;
}

.panel-students-progress {
  margin: 0;
  font-size: 0.92rem;
}

.panel-students-progress strong {
  color: var(--text);
}

.student-table-hint {
  margin: 10px 0 0;
  font-size: 0.88rem;
}

.table-students-clickable .student-row-clickable {
  cursor: pointer;
}

.table-students-clickable .student-row-clickable:hover td,
.table-students-clickable .student-row-clickable:focus-visible td {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.table-students-clickable .student-row-clickable:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.teacher-student-submission-dialog {
  width: min(100%, 920px);
  max-height: min(90vh, 880px);
  overflow: auto;
  padding-top: 44px;
}

.teacher-student-submission-close {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 1.5rem;
  line-height: 1;
  min-width: 40px;
  min-height: 40px;
  padding: 0;
}

.teacher-student-submission-body h3 {
  margin: 0 0 8px;
  padding-right: 36px;
}

.teacher-student-submission-test {
  margin: 16px 0;
}

.teacher-student-answers-title {
  margin: 20px 0 10px;
  font-size: 1rem;
}

body.teacher-submission-modal-open {
  overflow: hidden;
}

.data-table.table-student-answers-teacher {
  table-layout: fixed;
  min-width: 0;
  width: 100%;
}

.data-table.table-student-answers-teacher th,
.data-table.table-student-answers-teacher td {
  vertical-align: middle;
}

.data-table.table-student-answers-teacher th:nth-child(1),
.data-table.table-student-answers-teacher td:nth-child(1) {
  width: 2.75rem;
  text-align: center;
}

.data-table.table-student-answers-teacher th:nth-child(3),
.data-table.table-student-answers-teacher td:nth-child(3),
.data-table.table-student-answers-teacher th:nth-child(4),
.data-table.table-student-answers-teacher td:nth-child(4),
.data-table.table-student-answers-teacher th:nth-child(5),
.data-table.table-student-answers-teacher td:nth-child(5),
.data-table.table-student-answers-teacher th:nth-child(6),
.data-table.table-student-answers-teacher td:nth-child(6) {
  border-left: 1px solid var(--border);
}

.data-table.table-student-answers-teacher th:nth-child(3),
.data-table.table-student-answers-teacher td:nth-child(3) {
  width: 22%;
}

.data-table.table-student-answers-teacher th:nth-child(4),
.data-table.table-student-answers-teacher td:nth-child(4) {
  width: 4.25rem;
}

.data-table.table-student-answers-teacher th:nth-child(5),
.data-table.table-student-answers-teacher td:nth-child(5) {
  width: 6.5rem;
}

.data-table.table-student-answers-teacher th:nth-child(6),
.data-table.table-student-answers-teacher td:nth-child(6) {
  width: 5.5rem;
}

.data-table.table-student-answers-teacher th:nth-child(3) {
  text-align: left;
}

.data-table.table-student-answers-teacher th:nth-child(4),
.data-table.table-student-answers-teacher th:nth-child(5),
.data-table.table-student-answers-teacher th:nth-child(6) {
  text-align: center;
}

.data-table.table-student-answers-teacher td.col-answer {
  text-align: left;
  line-height: 1.35;
  padding-left: 10px;
  padding-right: 10px;
}

.data-table.table-student-answers-teacher td.col-time,
.data-table.table-student-answers-teacher td.col-window,
.data-table.table-student-answers-teacher td.col-result {
  text-align: center;
  white-space: nowrap;
}

.data-table.table-student-answers-teacher td.col-window {
  font-size: 0.82rem;
  line-height: 1.25;
  white-space: normal;
}

.data-table.table-student-answers-teacher td.col-window .tag {
  display: inline-block;
  max-width: 100%;
  text-align: center;
}

.teacher-student-submission-body .table-scroll {
  overflow-x: auto;
  margin-top: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.teacher-q-edit-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 8px 0 4px;
}

.teacher-q-edit-count {
  margin-left: auto;
  font-size: 0.88rem;
}

.teacher-q-edit-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 12px 0 16px;
}

.teacher-q-edit-card {
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--stat-bg) 50%, var(--card));
  overflow: hidden;
}

.teacher-q-edit-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin: 0;
  padding: 12px 14px;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

.teacher-q-edit-toggle:hover {
  background: var(--ghost-hover);
}

.teacher-q-edit-card.is-open .teacher-q-edit-toggle {
  background: color-mix(in srgb, var(--accent) 8%, var(--ghost-hover));
  border-bottom: 1px solid var(--border);
}

.teacher-q-edit-num {
  font-weight: 700;
  font-size: 0.88rem;
  flex-shrink: 0;
}

.teacher-q-preview {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.88rem;
}

.teacher-q-chevron {
  flex-shrink: 0;
  color: var(--muted);
  transition: transform 0.25s ease;
}

.teacher-q-edit-card.is-open .teacher-q-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

.teacher-q-edit-body {
  display: none;
  padding: 12px 14px 14px;
}

.teacher-q-edit-card.is-open .teacher-q-edit-body {
  display: block;
}

.teacher-q-label {
  display: block;
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--muted);
}

.teacher-q-text {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font: inherit;
  resize: vertical;
  min-height: 3.2rem;
}

.teacher-q-opts {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.teacher-q-opt-row {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 8px;
  align-items: center;
  cursor: pointer;
}

.teacher-q-opt-letter {
  font-weight: 700;
  min-width: 1.2rem;
  color: var(--muted);
}

.teacher-q-opt-input {
  width: 100%;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font: inherit;
}

.teacher-exam-editor-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.panel-admin-timing .admin-timing-total,
.panel-admin-timing .admin-timing-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 10px 0;
  flex-wrap: wrap;
}

.panel-admin-timing input[type="number"],
.panel-admin-tests .admin-timing-input {
  width: 5rem;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font: inherit;
  -moz-appearance: textfield;
  appearance: textfield;
}

.panel-admin-tests .admin-timing-input::-webkit-outer-spin-button,
.panel-admin-tests .admin-timing-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.panel-admin-tests .admin-timing-total {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.panel-admin-tests .btn-timing-confirm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  padding: 0;
  margin-left: 2px;
  border-radius: 8px;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
  transition:
    background var(--hover-duration) ease,
    border-color var(--hover-duration) ease,
    color var(--hover-duration) ease,
    opacity var(--hover-duration) ease;
}

.panel-admin-tests .btn-timing-confirm.is-idle {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  opacity: 0.45;
  cursor: default;
}

.panel-admin-tests .btn-timing-confirm.is-pending {
  border: 1px solid color-mix(in srgb, var(--accent) 55%, var(--border));
  background: color-mix(in srgb, var(--accent) 22%, var(--card));
  color: var(--accent);
  opacity: 1;
  cursor: pointer;
}

.panel-admin-tests .btn-timing-confirm.is-pending:hover {
  background: color-mix(in srgb, var(--accent) 32%, var(--card));
}

.panel-admin-tests .btn-timing-confirm:disabled {
  cursor: default;
}

.admin-timing-subjects {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.panel-admin-exam-publish .admin-exam-publish-actions {
  margin-top: 12px;
}

.panel-admin-class-hub .admin-class-hub-divider {
  margin: 20px 0 16px;
  border-top: 1px solid var(--border);
}

.panel-admin-class-hub .admin-class-hub-subhead {
  margin: 0 0 6px;
  font-size: 1rem;
}

.panel-admin-class-hub .admin-class-hub-hint {
  margin: 0 0 10px;
}

.panel-admin-tests .admin-tests-timing-block,
.panel-admin-class-hub .admin-tests-timing-block {
  padding: 12px 0 16px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.panel-admin-tests .admin-bundle-order {
  margin: 12px 0;
}

.panel-admin-class-hub .admin-bundle-hint {
  margin: 0 0 8px;
}

.panel-admin-class-hub .admin-bundle-exam-title {
  text-align: right;
  max-width: min(52%, 22rem);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.panel-admin-tests .admin-tests-publish-row {
  margin-top: 16px;
}

.panel-admin-tests .admin-tests-publish-row .btn-primary {
  width: 100%;
  max-width: 22rem;
}

.bundle-steps {
  margin: 12px 0 16px;
}

.bundle-step-mark {
  display: inline-block;
  width: 1.2rem;
  font-weight: 700;
}

.teacher-exam-editor-hint.error {
  color: #f87171;
}

.list-plain li.row-link.is-locked {
  opacity: 0.72;
}

.tag-demo {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.panel-notify {
  padding-top: 12px;
  padding-bottom: 12px;
}

.panel-notify .notify-disclosure {
  display: block;
  width: 100%;
  margin: 0;
}

.panel-notify .notify-summary {
  display: flex;
  align-items: stretch;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, var(--border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--stat-bg) 65%, var(--card));
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  user-select: none;
  appearance: none;
  -webkit-appearance: none;
  transition:
    background var(--hover-duration) ease,
    border-color var(--hover-duration) ease;
}

.panel-notify .notify-summary:hover {
  background: var(--ghost-hover);
  border-color: color-mix(in srgb, var(--accent) 32%, var(--border));
}

.panel-notify .notify-disclosure.is-open .notify-summary {
  background: var(--ghost-hover);
  border-color: color-mix(in srgb, var(--accent) 38%, var(--border));
}

.panel-notify .notify-summary-row {
  display: flex;
  flex: 1;
  flex-wrap: nowrap;
  align-items: center;
  gap: 10px;
  min-height: 1.5rem;
  width: 100%;
  min-width: 0;
}

.panel-notify .notify-summary-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  flex: 0 1 auto;
  white-space: nowrap;
}

.panel-notify .notify-summary-count {
  font-size: 0.88rem;
  white-space: nowrap;
  flex-shrink: 0;
  margin-left: auto;
}

.panel-notify .notify-chevron {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  margin-left: auto;
  border-radius: 8px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1;
  background: transparent;
  transform: rotate(0deg);
  transform-origin: center center;
  transition:
    transform 0.8s ease,
    color var(--hover-duration) ease;
}

.panel-notify .notify-summary-count + .notify-chevron {
  margin-left: auto;
}

.panel-notify .notify-summary:hover .notify-chevron {
  color: var(--accent);
  background: transparent;
}

.panel-notify .notify-disclosure.is-open .notify-chevron,
.panel-notify #btn-notify-toggle[aria-expanded="true"] .notify-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

.panel-notify .notify-body {
  display: none;
  margin-top: 0;
  padding-top: 0;
  border-top: 1px solid transparent;
}

.panel-notify .notify-body-inner {
  padding-top: 0;
}

.panel-notify .notify-disclosure.is-open .notify-body {
  display: block;
  margin-top: 14px;
  padding-top: 14px;
  border-top-color: var(--border);
}

@media (prefers-reduced-motion: reduce) {
  .panel-collapse .collapse-body,
  .panel-notify .notify-body,
  .panel-collapse .collapse-chevron,
  .panel-notify .notify-chevron {
    transition: none;
  }
}

.panel-notify .notify-body .lead {
  margin-top: 0;
}

.notify-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.notify-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px 12px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--stat-bg) 70%, var(--card));
}

.notify-item-kind {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.notify-item-value {
  font-size: 0.92rem;
  word-break: break-all;
}

.btn-notify-remove {
  min-width: 36px;
  padding: 4px 10px;
  font-size: 1.2rem;
  line-height: 1;
}

.notify-empty {
  margin: 12px 0 0;
  font-size: 0.9rem;
}

.notify-add-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 10px 12px;
  margin-top: 14px;
}

.notify-add-field {
  flex: 1 1 220px;
  margin: 0;
  min-width: 0;
}

.notify-add-field span {
  font-size: 0.78rem;
  color: var(--muted);
}

.notify-counter {
  margin: 10px 0 0;
  font-size: 0.85rem;
}

.demo-save-hint {
  margin: 10px 0 0;
  font-size: 0.85rem;
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 16px 0 12px;
  cursor: pointer;
  font-size: 0.92rem;
  line-height: 1.4;
}

.check-row input {
  margin-top: 3px;
  flex-shrink: 0;
}

.session-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.session-actions .btn-primary:disabled,
.session-actions .btn-secondary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.session-actions .btn-primary,
.session-actions .btn-secondary {
  width: auto;
  min-width: 180px;
  margin-top: 0;
}

.session-hint {
  margin: 0;
  font-size: 0.85rem;
}

.panel-wait .wait-box {
  margin-top: 16px;
  padding: 18px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}

.wait-title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 600;
}

.wait-note {
  margin: 12px 0 0;
  font-size: 0.88rem;
}

@media (max-width: 640px) {
  .notify-add-row .btn-primary {
    width: 100%;
  }
}

.panel p.lead {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  background: var(--badge-bg);
  color: var(--badge-text);
  margin-bottom: 12px;
}

.list-plain {
  list-style: none;
  margin: 0;
  padding: 0;
}

.list-plain li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.list-plain li:last-child {
  border-bottom: none;
}

.list-plain li.row-link {
  cursor: pointer;
  border-radius: 8px;
  margin: 0 -8px;
  padding: 10px 8px;
  transition: background var(--hover-duration) ease, color var(--hover-duration) ease;
}

.list-plain li.row-link:hover {
  background: var(--row-hover, var(--ghost-hover));
}

.list-plain li.row-link::after {
  content: "›";
  color: var(--muted);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.list-plain li.row-link .row-link-main {
  flex: 1;
  min-width: 0;
}

.btn-back {
  margin-bottom: 16px;
}

.panel h3.class-detail-title {
  margin-top: 0;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 8px;
}

.stat-box {
  background: var(--stat-bg);
  border-radius: 10px;
  padding: 14px;
  text-align: center;
}

.stat-box strong {
  display: block;
  font-size: 1.5rem;
}

.stat-box span {
  font-size: 0.8rem;
  color: var(--muted);
}

.panel-warn {
  border-color: color-mix(in srgb, #c4a24a 45%, var(--border));
  background: color-mix(in srgb, #c4a24a 8%, var(--card));
}

.list-questions .question-row {
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
}

.list-questions .question-row > div {
  line-height: 1.4;
}

.test-demo {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
}

.test-demo-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--stat-bg);
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.test-demo-timer {
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}

.test-demo-body {
  padding: 12px 16px 16px;
}

.test-demo-q {
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.test-demo-q:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.test-demo-q p {
  margin: 0 0 10px;
  line-height: 1.4;
}

.test-demo-opt {
  display: block;
  width: 100%;
  text-align: left;
  margin: 6px 0;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  cursor: pointer;
  font: inherit;
}

.test-demo-opt.is-correct {
  border-color: color-mix(in srgb, #6aab7a 55%, var(--border));
  background: color-mix(in srgb, #6aab7a 12%, var(--card));
}

.test-demo-opt.is-wrong {
  border-color: color-mix(in srgb, #e07070 55%, var(--border));
  background: color-mix(in srgb, #e07070 14%, var(--card));
}

.test-demo-opt.is-pick:hover {
  border-color: var(--accent);
}

.test-demo-note {
  margin: 0 0 12px;
  font-size: 0.875rem;
  color: var(--muted);
}

.btn-scroll-top {
  position: fixed;
  right: max(16px, env(safe-area-inset-right, 0px));
  bottom: max(20px, env(safe-area-inset-bottom, 0px));
  z-index: 100;
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 6px 24px color-mix(in srgb, #000 18%, transparent);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity 0.22s ease,
    visibility 0.22s ease,
    transform 0.22s ease,
    background var(--hover-duration) ease,
    color var(--hover-duration) ease;
  pointer-events: none;
}

.btn-scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.btn-scroll-top:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.student-results-stack {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}

.panel-student-results .lead {
  margin-bottom: 0;
}

.student-result-card.panel-collapse {
  border: 1px solid var(--border);
  border-radius: var(--radius, 10px);
  background: color-mix(in srgb, var(--card) 92%, var(--muted));
}

.student-result-card--highlight {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent);
}

.student-result-card .collapse-trigger {
  padding: 12px 14px;
}

.student-result-trigger-text {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.student-result-order-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  font-size: 0.75rem;
  border: 1px solid var(--border);
}

.student-result-subject-line {
  font-weight: 600;
  font-size: 1rem;
  text-align: left;
}

.student-result-details {
  padding: 0 14px 14px;
}

.student-result-meta {
  margin: 0 0 10px;
  font-size: 0.85rem;
  line-height: 1.4;
}

.student-result-details .metric-columns {
  margin-bottom: 10px;
}

.student-result-card .btn-result-detail {
  margin-top: 4px;
}

.cell-errors-stack {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  line-height: 1.25;
}

.cell-errors-stack .cell-time-sub,
.cell-errors-stack .cell-exit-sub {
  font-size: 0.78rem;
  font-weight: 500;
  white-space: nowrap;
}

.problem-panel-meta {
  margin: 0 0 10px;
  font-size: 0.88rem;
  line-height: 1.35;
}

.problem-table-wrap {
  margin-top: 4px;
  border: none;
  border-radius: 10px;
  overflow: hidden;
  background: var(--problems-table-bg);
}

.problem-table-wrap .student-table-scroll {
  margin-top: 0;
}

.data-table.table-problems {
  table-layout: fixed;
  min-width: 0;
  width: 100%;
  font-size: 0.84rem;
  border-collapse: separate;
  border-spacing: 0;
}

.data-table.table-problems th,
.data-table.table-problems td {
  padding: 14px 8px;
  vertical-align: middle;
  text-align: center;
  border-bottom: 2px solid var(--problems-divider);
}

.data-table.table-problems th:not(:last-child),
.data-table.table-problems td:not(:last-child) {
  border-right: 2px solid var(--problems-divider);
}

.data-table.table-problems thead th {
  text-align: center;
  border-bottom: 2px solid var(--problems-divider);
  box-shadow: none;
  font-weight: 700;
  font-size: 0.95rem;
  color: #ffffff;
}

.data-table.table-problems thead th:nth-child(1) {
  background: var(--problems-header-num-bg);
}

.data-table.table-problems thead th:nth-child(2) {
  background: #fcbd27;
}

.data-table.table-problems thead th:nth-child(3) {
  background: #fa4b73;
}

.data-table.table-problems thead th:nth-child(4) {
  background: #4c68df;
}

.data-table.table-problems thead th:nth-child(5) {
  background: #8638e3;
}

.data-table.table-problems tbody td {
  border-bottom: 2px solid var(--problems-divider);
  color: var(--problems-cell-text);
}

.data-table.table-problems tbody tr:nth-child(odd) td {
  background: var(--problems-row-a);
}

.data-table.table-problems tbody tr:nth-child(even) td {
  background: var(--problems-row-b);
}

.data-table.table-problems tbody tr:last-child td {
  border-bottom: none;
}

.data-table.table-problems th:nth-child(1),
.data-table.table-problems td:nth-child(1) {
  width: 7%;
  text-align: center;
}

.data-table.table-problems th:nth-child(2),
.data-table.table-problems td:nth-child(2) {
  width: 36%;
  max-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: center;
}

.data-table.table-problems th:nth-child(3),
.data-table.table-problems td:nth-child(3) {
  width: 14%;
  text-align: center;
}

.data-table.table-problems th:nth-child(4),
.data-table.table-problems td:nth-child(4) {
  width: 20%;
  text-align: center;
}

.data-table.table-problems th:nth-child(5),
.data-table.table-problems td:nth-child(5) {
  width: 23%;
  text-align: center;
}

.data-table.table-problems td.num {
  text-align: center;
  width: auto;
  white-space: nowrap;
}

.cell-exit-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  line-height: 1.2;
}

.cell-exit-col .cell-away-sub {
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
}

.panel-problems-table .tag,
.panel-warn.panel-block .tag {
  padding: 2px 7px;
  font-size: 0.7rem;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: middle;
}

@media (max-width: 380px) {
  .data-table.table-problems {
    font-size: 0.78rem;
  }

  .data-table.table-problems th,
  .data-table.table-problems td {
    padding: 7px 4px;
  }

  .data-table.table-problems th:nth-child(2),
  .data-table.table-problems td:nth-child(2) {
    width: 32%;
  }
}

.data-table td.col-errors-stack {
  vertical-align: middle;
}