:root {
  color-scheme: dark;
  --window: #05070c;
  --panel: #090d14;
  --panel-alt: #121824;
  --field: #111827;
  --field-focus: #172033;
  --border: #263044;
  --text: #f8fafc;
  --muted: #a8b3c7;
  --accent: #38bdf8;
  --accent-hover: #0ea5e9;
  --success: #34d399;
  --danger: #fb7185;
  --warning: #fbbf24;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

[data-admin-tab-section="removed"] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--window);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

.app-shell {
  width: min(1480px, 100%);
  margin: 0 auto;
  padding: 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 58px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
}

.brand,
.topnav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  color: var(--text);
  font-weight: 800;
  font-size: 18px;
}

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  border: 2px solid var(--accent);
  background: linear-gradient(135deg, var(--panel-alt), var(--field));
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  right: 4px;
  bottom: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
}

.topnav a,
.user-pill {
  color: var(--muted);
  font-size: 14px;
}

.install-app-button {
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: transparent;
  color: var(--accent);
  padding: 7px 11px;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.install-app-button:hover {
  background: color-mix(in srgb, var(--accent) 16%, transparent);
}

.user-pill {
  border: 1px solid var(--border);
  background: var(--panel-alt);
  border-radius: 999px;
  padding: 8px 12px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  margin: 8px 0 18px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 6px;
  font-size: clamp(26px, 3vw, 40px);
}

h2 {
  font-size: 18px;
  margin-bottom: 14px;
}

h3 {
  margin: 8px 0 4px;
  font-size: 15px;
}

.page-header p,
.muted,
.empty {
  color: var(--muted);
}

.flash-stack {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.flash {
  border: 1px solid var(--border);
  background: var(--panel-alt);
  border-radius: 8px;
  padding: 12px 14px;
}

.flash.success {
  border-color: color-mix(in srgb, var(--success), var(--border) 35%);
}

.flash.error {
  border-color: color-mix(in srgb, var(--danger), var(--border) 35%);
}

.login-layout {
  min-height: calc(100vh - 130px);
  display: grid;
  place-items: center;
}

.login-panel,
.panel,
.lesson-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.login-panel {
  width: min(430px, 100%);
  padding: 28px;
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  align-items: start;
}

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

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.admin-main-tabs {
  margin-bottom: 14px;
}

.admin-main-tabs .tab-nav {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  padding: 10px;
}

.stat {
  min-height: 82px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 16px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.stat strong,
.progress-box strong {
  font-size: 28px;
}

.stat span,
.progress-box span {
  color: var(--muted);
}

.form-grid {
  display: grid;
  gap: 12px;
}

.homework-material-form label:has(select[name="kind"]),
.homework-material-form label:has(input[name="url"]) {
  display: none;
}

.checkbox-list,
.category-chip-list {
  display: grid;
  gap: 8px;
}

.category-chip-list {
  grid-template-columns: repeat(auto-fit, minmax(120px, max-content));
  margin-top: 12px;
}

.category-chip-form {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
}

.chip-delete-button {
  min-height: 24px;
  width: 24px;
  padding: 0;
  border-radius: 999px;
  border-color: var(--danger);
  color: var(--danger);
  background: transparent;
  font-size: 12px;
  line-height: 1;
}

.chip-delete-button:hover {
  background: color-mix(in srgb, var(--danger), transparent 84%);
}

.checkbox-list {
  max-height: 190px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field);
  padding: 8px;
}

.compact-checkbox-list {
  max-height: 130px;
}

.checkbox-row {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  gap: 10px;
  border-radius: 8px;
  padding: 8px;
  color: var(--text);
  font-size: 14px;
}

.checkbox-row:hover {
  background: var(--field-focus);
}

.checkbox-row input {
  width: auto;
  margin: 0;
}

.two-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.field-help {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.field-group {
  display: grid;
  gap: 6px;
}

.field-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--field);
  color: var(--text);
  font: inherit;
  padding: 11px 12px;
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  background: var(--field-focus);
}

button,
.resource-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel-alt);
  color: var(--text);
  font-weight: 800;
  padding: 0 14px;
  cursor: pointer;
}

button:hover,
.resource-link:hover {
  background: var(--field-focus);
  color: var(--text);
}

button.primary,
.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--window);
}

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

button.small {
  min-height: 32px;
  padding: 0 10px;
  font-size: 12px;
}

a.small {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel-alt);
  color: var(--text);
  font-size: 12px;
  font-weight: 800;
  padding: 0 10px;
}

button.danger {
  border-color: var(--danger);
  color: var(--danger);
}

.sms-link {
  border-color: var(--success);
  color: var(--success);
  margin: 0 6px 6px 0;
}

.table-panel {
  overflow: hidden;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

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

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.inline-form {
  display: flex;
  gap: 8px;
  align-items: center;
}

.stacked-form {
  align-items: stretch;
  flex-wrap: wrap;
}

.stacked-form input {
  min-width: 150px;
}

.reschedule-form {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.student-reschedule-form {
  display: grid;
  gap: 10px;
}

.inline-form select {
  min-width: 150px;
}

.tag-access-form {
  min-width: 300px;
}

.tag-access-form select {
  min-width: 150px;
}

.tag-picker {
  min-width: 180px;
  position: relative;
}

.tag-picker summary {
  min-height: 40px;
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--field);
  color: var(--text);
  font-weight: 700;
  padding: 0 12px;
  cursor: pointer;
  list-style: none;
}

.tag-picker summary::-webkit-details-marker {
  display: none;
}

.tag-picker[open] summary {
  border-color: var(--accent);
  background: var(--field-focus);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.tag-picker .checkbox-list {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

.student-tag-list {
  min-width: 180px;
}

.student-tag-list > summary {
  width: fit-content;
  min-height: 30px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  list-style: none;
}

.student-tag-list > summary::-webkit-details-marker {
  display: none;
}

.student-tag-list-items {
  width: min(310px, 32vw);
  margin-top: 8px;
  padding: 9px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--field);
}

.video-fields {
  display: grid;
  gap: 10px;
}

.video-field-row {
  display: grid;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
}

.homework-video-link-panel {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field);
  padding: 12px;
}

.video-bundle-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.video-bundle-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
}

.bundle-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.exam-plan-items {
  display: grid;
  gap: 10px;
}

.exam-plan-item-row {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
  position: relative;
}

.exam-plan-item-row::before {
  content: "Krok " attr(data-step);
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel-alt);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  padding: 0 9px;
}

.badge.done {
  border-color: var(--success);
  color: var(--success);
}

.badge.in_progress {
  border-color: var(--warning);
  color: var(--warning);
}

.badge.todo {
  border-color: var(--accent);
  color: var(--accent);
}

.badge.kind-homework {
  border-color: var(--warning);
  color: var(--warning);
}

.badge.kind-video {
  border-color: var(--accent);
  color: var(--accent);
}

.badge.kind-task {
  border-color: var(--warning);
  color: var(--warning);
}

.badge.kind-link {
  border-color: var(--success);
  color: var(--success);
}

.badge.assessment-planned {
  border-color: var(--accent);
  color: var(--accent);
}

.badge.assessment-passed {
  border-color: var(--success);
  color: var(--success);
}

.badge.assessment-failed {
  border-color: var(--danger);
  color: var(--danger);
}

.badge.assessment-postponed {
  border-color: var(--warning);
  color: var(--warning);
}

.material-list {
  display: grid;
  gap: 10px;
}

.material-access-panel {
  grid-column: 1 / -1;
}

.material-access-panel .form-grid {
  grid-template-columns: minmax(170px, 1fr) minmax(220px, 1.3fr) minmax(145px, 0.65fr) minmax(220px, 1.2fr) auto;
  align-items: start;
}

.material-access-panel .form-grid > button {
  align-self: end;
}

.material-library-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.material-library-header h2,
.material-library-header p {
  margin: 0;
}

.material-library-header .muted {
  margin-top: 5px;
}

.material-library-count {
  padding: 8px 12px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  white-space: nowrap;
}

.material-library {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.material-library-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.material-library-tab {
  min-height: 36px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--field);
  color: var(--muted);
  cursor: pointer;
  font-weight: 800;
}

.material-library-tab:hover,
.material-library-tab.active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--window);
}

.material-kind-section {
  display: grid;
  gap: 12px;
}

.material-kind-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field);
}

.material-kind-header p {
  margin: 6px 0 0;
  color: var(--muted);
}

.material-kind-header > strong {
  min-width: 36px;
  min-height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--panel-alt);
  color: var(--text);
}

.material-library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 12px;
}

.admin-material-list {
  display: grid;
  gap: 8px;
}

.admin-material-list-item {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
}

.admin-material-list-item[open] {
  border-color: var(--accent);
}

.admin-material-list-item > summary {
  min-height: 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto 26px;
  gap: 14px;
  align-items: center;
  padding: 10px 14px;
  cursor: pointer;
  list-style: none;
}

.admin-material-list-item > summary::-webkit-details-marker {
  display: none;
}

.admin-material-list-item > summary::after {
  content: "+";
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  grid-column: 3;
  grid-row: 1;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--accent);
  font-weight: 900;
}

.admin-material-list-item[open] > summary::after {
  content: "−";
  border-color: var(--accent);
}

.admin-material-list-item > summary:hover {
  background: var(--field-focus);
}

.collapsible-data-panel {
  padding: 0;
}

.collapsible-data-panel > summary {
  min-height: 64px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: 850;
}

.collapsible-data-panel > summary::-webkit-details-marker {
  display: none;
}

.collapsible-data-panel > summary:hover {
  background: var(--field-focus);
}

.assessment-schedule-toggle {
  min-width: 82px;
  min-height: 34px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}

.collapsible-data-panel[open] > summary {
  border-bottom: 1px solid var(--border);
}

.collapsible-data-panel[open] .assessment-schedule-toggle {
  color: var(--text);
  border-color: var(--border);
  font-size: 0;
}

.collapsible-data-panel[open] .assessment-schedule-toggle::after {
  content: "Ukryj";
  font-size: 12px;
}

.assessment-schedule-content {
  margin: 0;
  border: 0;
  border-radius: 0;
}

.admin-material-list-title {
  min-width: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
}

.admin-material-list-title strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-material-list-counts {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 6px;
}

.admin-material-list-counts span {
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--field);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  white-space: nowrap;
}

.admin-material-list-detail {
  display: grid;
  gap: 12px;
  padding: 14px;
  border-top: 1px solid var(--border);
  background: var(--panel);
}

.admin-material-list-actions {
  display: flex;
  justify-content: flex-end;
}

.material-library-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
}

.material-library-card > header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.material-library-card h3,
.material-library-card p {
  margin: 0;
}

.material-library-card h3 {
  margin-top: 8px;
  font-size: 1rem;
}

.material-meta,
.material-description {
  color: var(--muted);
  line-height: 1.45;
}

.attached-videos {
  padding: 10px;
  border: 1px solid var(--accent);
  border-radius: 9px;
  background: var(--field);
}

.attached-videos h4 {
  margin: 0 0 8px;
  font-size: 0.85rem;
  color: var(--accent);
}

.attached-videos ol {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 22px;
}

.attached-videos li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.attached-videos a {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  white-space: nowrap;
}

.compact-material-thumbs {
  grid-template-columns: repeat(3, minmax(80px, 1fr));
}

.material-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
}

.paste-zone {
  min-height: 150px;
  border: 1px dashed var(--accent);
  border-radius: 10px;
  background: var(--field);
  color: var(--muted);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 14px;
  cursor: text;
}

.paste-zone:focus {
  outline: none;
  background: var(--field-focus);
}

.screenshot-slots {
  display: grid;
  gap: 10px;
}

.screenshot-topic-editor,
.screenshot-topic {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
}

.screenshot-topic-header {
  display: flex;
  gap: 8px;
  align-items: center;
}

.screenshot-topic-header input {
  min-width: 0;
  flex: 1;
}

.screenshot-topic h3 {
  margin: 0;
  font-size: 0.95rem;
}

.screenshot-slot {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--field);
  padding: 10px;
}

.screenshot-slot.is-empty {
  min-height: 130px;
  border-style: dashed;
  border-color: var(--accent);
  color: var(--muted);
  display: grid;
  place-items: center;
  text-align: center;
  cursor: text;
}

.screenshot-slot.is-empty:focus {
  outline: none;
  background: var(--field-focus);
}

.screenshot-slot-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.screenshot-slot-preview {
  display: block;
  width: 100%;
  max-height: 260px;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #000;
}

.paste-zone.has-image {
  display: block;
  text-align: left;
}

.paste-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.paste-preview,
.material-thumb,
.material-image {
  display: block;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #000;
}

.paste-preview {
  max-height: 260px;
  margin-top: 10px;
}

.paste-preview-list,
.material-thumb-grid,
.material-image-grid {
  display: grid;
  gap: 10px;
}

.paste-preview-list {
  width: 100%;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  margin-bottom: 10px;
}

.paste-preview-item {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
}

.paste-preview-item img {
  display: block;
  width: 100%;
  height: 120px;
  object-fit: contain;
  background: #000;
}

.paste-preview-remove {
  position: absolute;
  right: 8px;
  top: 8px;
  border: 1px solid var(--danger);
  border-radius: 999px;
  background: rgba(255, 92, 122, 0.16);
  color: var(--text);
  padding: 4px 8px;
  font-weight: 800;
  cursor: pointer;
}

.material-thumb-grid {
  grid-template-columns: repeat(auto-fit, minmax(120px, 180px));
  align-items: start;
  margin: 10px 0;
}

.material-image-grid {
  margin: 12px 0;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.compact-link {
  display: inline-flex;
  margin: 8px 0;
}

.pdf-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0;
}

.pdf-link-list .compact-link {
  margin: 0;
}

.material-thumb {
  max-height: 130px;
  margin: 0;
}

.material-image-wrap {
  margin: 12px 0;
}

.material-image {
  width: 100%;
  max-height: 560px;
  object-fit: contain;
}

.previewable-screenshot {
  cursor: zoom-in;
}

.previewable-screenshot:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.image-viewer-open {
  overflow: hidden;
}

.image-viewer {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: none;
  grid-template-rows: auto 1fr;
  padding: 16px;
  background: rgb(0 0 0 / 88%);
}

.image-viewer.open {
  display: grid;
}

.image-viewer-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  padding: 8px 10px 14px;
  color: var(--text);
}

.image-viewer-toolbar > span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.image-viewer-actions {
  display: flex;
  gap: 8px;
}

.icon-button {
  display: grid;
  width: 38px;
  height: 38px;
  min-width: 38px;
  place-items: center;
  padding: 0;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
}

.image-viewer-stage {
  display: grid;
  min-height: 0;
  place-items: center;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
  overscroll-behavior: contain;
}

.image-viewer-stage.dragging {
  cursor: grabbing;
}

.image-viewer-stage img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transform-origin: center;
  user-select: none;
  -webkit-user-drag: none;
  will-change: transform;
}

.student-dashboard-header {
  align-items: center;
}

.student-summary-grid {
  display: grid;
  grid-template-columns: minmax(320px, 2fr) repeat(3, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.next-lesson-card,
.student-mini-stat {
  margin-bottom: 0;
}

.next-lesson-card {
  display: grid;
  gap: 8px;
}

.next-lesson-card h2 {
  margin-bottom: 0;
}

.next-lesson-card strong {
  font-size: 28px;
}

.next-lesson-card p {
  margin: 0;
}

.student-mini-stat {
  min-height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  background: var(--panel-alt);
}

.student-mini-stat span {
  color: var(--muted);
  font-weight: 800;
}

.student-mini-stat strong {
  font-size: 34px;
}

.student-tabs {
  display: grid;
  gap: 14px;
}

.tab-nav {
  display: flex;
  gap: 10px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  overflow-x: auto;
}

.tab-button {
  min-width: 160px;
  border-radius: 999px;
}

.tab-button.active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--window);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.student-plan {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 14px;
}

.homework-list {
  display: grid;
  gap: 0;
  padding: 0;
  overflow: hidden;
}

.homework-list-header,
.homework-list-item > summary {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 130px;
  align-items: center;
  gap: 14px;
}

.homework-list-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.homework-list-item {
  border-bottom: 1px solid var(--border);
}

.homework-list-item:last-of-type {
  border-bottom: 0;
}

.homework-list-item > summary {
  min-height: 58px;
  padding: 10px 16px;
  cursor: pointer;
  list-style: none;
}

.homework-list-item > summary::-webkit-details-marker {
  display: none;
}

.homework-list-item > summary:hover,
.homework-list-item[open] > summary {
  background: var(--field-focus);
}

.homework-list-date {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.homework-list-detail {
  padding: 0 16px 16px;
}

.homework-list-detail .lesson-card {
  max-width: none;
}

.legacy-video-groups,
.legacy-task-bank,
.legacy-test-preps {
  display: none;
}

.video-plan {
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
}

.video-topic-tabs {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  margin-bottom: 14px;
  padding-bottom: 4px;
}

.video-topic-button {
  min-width: 180px;
  justify-content: space-between;
  gap: 12px;
  border-radius: 999px;
}

.video-topic-button span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  min-height: 24px;
  border-radius: 999px;
  background: var(--field);
  color: var(--muted);
  font-size: 12px;
}

.video-topic-button.active {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--window);
}

.video-topic-button.active span {
  background: rgba(5, 7, 12, 0.16);
  color: var(--window);
}

.video-topic-panel {
  display: none;
}

.video-topic-panel.active {
  display: grid;
}

.video-category-badge {
  border-color: var(--accent);
  color: var(--accent);
}

.exam-progress-list {
  display: grid;
  gap: 14px;
}

.exam-progress-card,
.exam-student-plan {
  display: grid;
  gap: 14px;
}

.exam-progress-card {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-alt);
}

.exam-progress-header,
.exam-student-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.exam-progress-header h3,
.exam-student-header h2 {
  margin: 8px 0 4px;
}

.exam-score {
  min-width: 130px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--field);
  text-align: right;
}

.exam-score strong {
  display: block;
  font-size: 26px;
  line-height: 1.1;
}

.exam-score span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.exam-progress-bar {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--field);
}

.exam-progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--success));
}

.exam-item-checklist,
.exam-task-list {
  display: grid;
  gap: 10px;
}

.exam-item-row span {
  display: grid;
  gap: 2px;
}

.exam-item-row small {
  color: var(--muted);
  font-weight: 700;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.button-row .primary {
  flex: 1 1 180px;
}

.exam-task-card {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  background: var(--field);
}

.exam-task-card.done {
  border-left-color: var(--success);
}

.exam-task-card.locked {
  border-left-color: var(--border);
  opacity: 0.58;
}

.exam-task-card h3 {
  margin-top: 0;
}

.exam-task-card p:last-child {
  margin-bottom: 0;
}

.sms-list {
  display: grid;
  gap: 12px;
}

.sms-card {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-alt);
}

.sms-card.sent {
  opacity: 0.78;
}

.sms-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
}

.sms-card-header h3 {
  margin: 8px 0 4px;
}

.sms-body-preview {
  min-height: 104px;
  resize: vertical;
  line-height: 1.5;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 12px;
}

.assessment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.assessment-calendar-stack {
  display: grid;
  gap: 14px;
  margin-bottom: 16px;
}

.assessment-calendar {
  padding: 16px;
}

.assessment-calendar-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.assessment-calendar-header h2 {
  margin-bottom: 0;
}

.calendar-month-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.calendar-month-nav,
.calendar-month-current {
  display: inline-grid;
  min-height: 32px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: var(--field);
  text-decoration: none;
}

.calendar-month-nav {
  width: 32px;
  font-size: 18px;
}

.calendar-month-current {
  padding: 0 10px;
  font-size: 13px;
}

.calendar-month-nav:hover,
.calendar-month-current:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.assessment-calendar-header span {
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
}

.calendar-weekdays,
.calendar-month-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.calendar-weekdays {
  margin-bottom: 8px;
}

.calendar-weekdays span {
  color: var(--muted);
  text-align: center;
  font-size: 12px;
  font-weight: 800;
}

.calendar-day {
  min-height: 104px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
  padding: 9px;
  overflow: hidden;
}

.calendar-day.outside {
  opacity: 0.38;
}

.calendar-day.today {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent), transparent 40%);
}

.calendar-day.has-assessment {
  background: var(--field);
}

.calendar-day-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  color: var(--text);
  font-weight: 800;
  font-size: 13px;
}

.calendar-day.today .calendar-day-number {
  background: var(--accent);
  color: var(--window);
}

.calendar-day-items {
  display: grid;
  gap: 6px;
  margin-top: 8px;
}

.calendar-assessment {
  display: grid;
  gap: 2px;
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  background: var(--panel);
  padding: 7px 8px;
  min-width: 0;
}

.calendar-assessment strong,
.calendar-assessment span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.calendar-assessment strong {
  color: var(--accent);
  font-size: 11px;
}

.calendar-assessment span {
  color: var(--text);
  font-size: 12px;
  font-weight: 800;
}

.calendar-assessment.assessment-passed {
  border-left-color: var(--success);
}

.calendar-assessment.assessment-failed {
  border-left-color: var(--danger);
}

.calendar-assessment.assessment-postponed {
  border-left-color: var(--warning);
}

.assessment-card {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  background: var(--panel-alt);
}

.assessment-card.passed {
  border-left-color: var(--success);
}

.assessment-card.failed {
  border-left-color: var(--danger);
}

.assessment-card.postponed {
  border-left-color: var(--warning);
}

.test-prep-card {
  border-left: 4px solid var(--warning);
}

.assessment-date {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
}

.assessment-date strong {
  color: var(--text);
  font-size: 17px;
}

.compact-note {
  margin-top: 10px;
  padding: 10px;
}

.ai-tutor-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.ai-model-pill {
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  background: var(--panel-alt);
  padding: 8px 12px;
  font-weight: 800;
  font-size: 12px;
}

.ai-chat-log {
  display: grid;
  gap: 10px;
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--window);
  padding: 12px;
  margin-bottom: 12px;
}

.ai-message {
  max-width: min(880px, 100%);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: var(--panel-alt);
}

.ai-message.student {
  justify-self: end;
  border-color: color-mix(in srgb, var(--accent), var(--border) 40%);
}

.ai-message.assistant {
  justify-self: start;
  border-color: color-mix(in srgb, var(--success), var(--border) 45%);
}

.ai-message p {
  margin: 6px 0 0;
  line-height: 1.55;
}

.ai-empty {
  color: var(--muted);
  padding: 10px;
}

.ai-form {
  display: grid;
  gap: 12px;
}

.ai-solution-paste-zone {
  min-height: 96px;
  padding: 16px;
  display: grid;
  place-content: center;
  gap: 6px;
  border: 1px dashed var(--accent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--field), var(--accent) 5%);
  color: var(--muted);
  cursor: pointer;
  text-align: center;
}

.ai-solution-paste-zone:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.ai-solution-paste-zone strong {
  color: var(--text);
}

.ai-solution-paste-zone span {
  font-size: 12px;
}

.ai-solution-preview {
  display: grid;
  gap: 8px;
}

.ai-solution-preview img {
  width: 100%;
  max-height: 230px;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--window);
}

.ai-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.ai-floating {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 50;
}

.ai-bubble {
  width: 68px;
  height: 68px;
  min-height: 68px;
  border-radius: 50%;
  border-color: var(--accent);
  background: var(--accent);
  color: var(--window);
  box-shadow: 0 18px 48px rgba(56, 189, 248, 0.24);
  font-size: 18px;
}

.ai-drawer {
  position: absolute;
  right: 0;
  bottom: 82px;
  width: min(680px, calc(100vw - 36px));
  max-height: min(860px, calc(100vh - 86px));
  display: none;
  overflow: auto;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
}

.ai-drawer.open {
  display: block;
}

.ai-drawer .ai-model-pill {
  display: none;
}

.ai-close {
  white-space: nowrap;
}

.ai-mark {
  border-radius: 6px;
  padding: 1px 5px;
  font-weight: 800;
}

.ai-blue {
  color: #7dd3fc;
  background: rgba(56, 189, 248, 0.14);
}

.ai-green {
  color: #86efac;
  background: rgba(52, 211, 153, 0.14);
}

.ai-yellow {
  color: #fde68a;
  background: rgba(251, 191, 36, 0.16);
}

.ai-red {
  color: #fda4af;
  background: rgba(251, 113, 133, 0.16);
}

.ai-underline {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
  background: rgba(56, 189, 248, 0.12);
}

.lesson-card {
  padding: 18px;
  border-left: 4px solid var(--accent);
}

.lesson-card.done {
  border-left-color: var(--success);
}

.lesson-card.in_progress {
  border-left-color: var(--warning);
}

.lesson-card.todo {
  border-left-color: var(--accent);
}

.note-block,
.task-content {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
  padding: 12px;
}

.task-content {
  white-space: pre-wrap;
  overflow: auto;
  color: var(--text);
  font: 14px/1.5 "Segoe UI", system-ui, sans-serif;
}

.video-frame {
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin: 12px 0;
  background: #000;
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.homework-video-list {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.homework-video-list h3 {
  margin: 0;
  font-size: 15px;
}

.homework-video-item {
  display: grid;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-alt);
  padding: 12px;
}

.compact-video-frame {
  margin: 0;
}

.status-form {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.homework-complete-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-alt);
  cursor: pointer;
}

.homework-complete-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.homework-checkmark {
  display: grid;
  place-items: center;
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  border: 2px solid var(--accent);
  border-radius: 6px;
  color: transparent;
  font-weight: 800;
}

.homework-complete-toggle input:checked + .homework-checkmark {
  border-color: var(--success);
  background: var(--success);
  color: #06110d;
}

.homework-complete-toggle input:focus-visible + .homework-checkmark {
  outline: 3px solid rgba(57, 189, 248, 0.35);
  outline-offset: 2px;
}

.homework-complete-toggle strong,
.homework-complete-toggle small {
  display: block;
}

.homework-complete-toggle small {
  margin-top: 3px;
  color: var(--muted);
}

.progress-box {
  min-width: 150px;
  padding: 14px 18px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: right;
}

.empty-panel {
  grid-column: 1 / -1;
}

@media (max-width: 960px) {
  .admin-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .material-access-panel .form-grid {
    grid-template-columns: 1fr;
  }

  .material-library-header,
  .material-kind-header,
  .material-library-card > header {
    align-items: stretch;
    flex-direction: column;
  }

  .material-library-count {
    align-self: start;
  }

  .admin-material-list-item > summary {
    grid-template-columns: minmax(0, 1fr) 26px;
  }

  .admin-material-list-counts {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: start;
  }

  .admin-material-list-item > summary::after {
    grid-column: 2;
  }

  .topbar,
  .page-header,
  .material-row {
    align-items: stretch;
    flex-direction: column;
  }

  .student-plan {
    grid-template-columns: 1fr;
  }

  .homework-list-header {
    display: none;
  }

  .homework-list-item > summary {
    grid-template-columns: 1fr auto;
  }

  .homework-list-date {
    grid-column: 1 / -1;
    font-size: 12px;
  }

  .student-summary-grid {
    grid-template-columns: 1fr;
  }

  .video-plan {
    grid-template-columns: 1fr;
  }

  .ai-floating {
    right: 14px;
    bottom: 14px;
  }

  .ai-drawer {
    right: -2px;
    width: calc(100vw - 28px);
    max-height: calc(100vh - 104px);
  }

  .two-fields,
  .assessment-card {
    grid-template-columns: 1fr;
  }

  .calendar-weekdays,
  .calendar-month-grid {
    gap: 5px;
  }

  .calendar-day {
    min-height: 78px;
    padding: 6px;
  }

  .calendar-assessment {
    padding: 5px 6px;
  }

  .calendar-assessment strong,
  .calendar-assessment span {
    font-size: 10px;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 12px;
  }

  .topbar {
    min-height: 52px;
    margin-bottom: 14px;
  }

  .brand {
    font-size: 16px;
  }

  .brand-mark {
    width: 26px;
    height: 26px;
  }

  .topnav {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px 12px;
  }

  .topnav a,
  .user-pill,
  .install-app-button {
    font-size: 12px;
  }

  .user-pill {
    padding: 6px 9px;
  }

  button,
  input,
  select,
  textarea {
    min-height: 42px;
  }

  .panel,
  .login-panel,
  .material-library-card,
  .assessment-calendar-panel {
    border-radius: 12px;
  }
}


.lesson-total-stat {
  border-color: color-mix(in srgb, var(--success), var(--border) 45%);
}

.student-mini-stat small {
  color: var(--muted);
  font-weight: 700;
}

.lesson-calendar-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 14px;
}

.badge.lesson-planned,
.calendar-assessment.lesson-planned {
  border-left-color: var(--accent);
}

.badge.lesson-completed,
.calendar-assessment.lesson-completed {
  border-left-color: var(--success);
  color: var(--success);
}

.badge.lesson-cancelled,
.calendar-assessment.lesson-cancelled {
  border-left-color: var(--danger);
  color: var(--danger);
}

.badge.lesson-rescheduled,
.calendar-assessment.lesson-rescheduled {
  border-left-color: var(--warning);
  color: var(--warning);
}

.calendar-day.has-lesson {
  background: var(--field);
}


/* Collapsible SMS history keeps older communication compact and scannable. */
.sms-history-heading,
.sms-month-summary,
.sms-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
}

.sms-history-heading {
  margin-bottom: 14px;
}

.sms-history-heading h2 {
  margin: 3px 0 5px;
}

.sms-history-count {
  flex: 0 0 auto;
  padding: 7px 11px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.82rem;
}

.sms-month-list {
  display: grid;
  gap: 10px;
}

.sms-month-group {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-alt);
}

.sms-month-summary,
.sms-card-header {
  cursor: pointer;
  list-style: none;
}

.sms-month-summary::-webkit-details-marker,
.sms-card-header::-webkit-details-marker {
  display: none;
}

.sms-month-summary {
  align-items: center;
  padding: 13px 15px;
}

.sms-month-summary::after,
.sms-card-header::after {
  content: "+";
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 1.2rem;
  line-height: 1;
}

.sms-month-group[open] > .sms-month-summary::after,
.sms-card[open] > .sms-card-header::after {
  content: "-";
}

.sms-month-summary > div:first-child {
  display: grid;
  gap: 3px;
}

.sms-month-summary span:not(.badge) {
  color: var(--muted);
  font-size: 0.85rem;
}

.sms-month-summary-counts {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
  padding-right: 6px;
}

.sms-month-group > .sms-list {
  padding: 0 12px 12px;
}

.sms-card {
  gap: 0;
  padding: 0;
}

.sms-card-header {
  padding: 13px 14px;
}

.sms-card-header > .muted {
  padding-right: 6px;
}

.sms-card-content {
  display: grid;
  gap: 12px;
  padding: 0 14px 14px;
  border-top: 1px solid var(--border);
}

@media (max-width: 720px) {
  .sms-history-heading,
  .sms-month-summary,
  .sms-card-header {
    flex-direction: column;
  }

  .sms-month-summary-counts {
    justify-content: flex-start;
  }

  .sms-history-count {
    align-self: flex-start;
  }
}


/* Every SMS body is visible when its calendar month is expanded. */
article.sms-card .sms-card-header {
  cursor: default;
}

article.sms-card .sms-card-header::after {
  display: none;
}
.admin-grid > .assessment-plan-setup {
  grid-column: 1 / -1;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
}

@media (max-width: 960px) {
  .admin-grid > .assessment-plan-setup {
    grid-template-columns: 1fr;
  }
}

.homework-plan-panel {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--field);
}

.homework-plan-fields {
  display: grid;
  gap: 8px;
}

.homework-plan-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.32fr) minmax(260px, 1fr) auto;
  gap: 10px;
  align-items: end;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.homework-plan-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.homework-plan-row textarea {
  min-height: 70px;
}

.homework-execution-plan {
  margin: 16px 0;
  padding: 14px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.homework-execution-plan-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.homework-execution-plan-header h3,
.admin-homework-plan h4 {
  margin: 2px 0 0;
}

.homework-execution-plan-header > strong {
  color: var(--accent);
  font-size: 13px;
}

.homework-plan-timeline {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.homework-plan-timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 18px;
  min-height: 54px;
  padding: 8px 0 10px 20px;
}

.homework-plan-timeline li::before {
  content: "";
  position: absolute;
  top: 13px;
  left: 2px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--panel);
}

.homework-plan-timeline li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 25px;
  bottom: -2px;
  left: 7px;
  width: 1px;
  background: var(--border);
}

.homework-plan-timeline time {
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.homework-plan-timeline p {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.45;
}

.admin-homework-plan {
  margin: 14px 0;
}

.compact-homework-plan li {
  min-height: 42px;
  padding-top: 5px;
  padding-bottom: 6px;
}

@media (max-width: 760px) {
  .homework-plan-row {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .homework-plan-timeline li {
    grid-template-columns: 1fr;
    gap: 3px;
  }
}