:root {
  --rk-bg: #F7F3EA;
  --rk-surface: #FFFCF6;
  --rk-surface-elevated: #FFFFFF;

  --rk-text: #1F2933;
  --rk-text-secondary: #52606D;
  --rk-text-muted: #7B8794;

  --rk-border: #E6DDD0;

  --rk-primary: #2F6F73;
  --rk-primary-hover: #255E62;
  --rk-secondary: #D9A441;
  --rk-primary-soft: #EEF7F6;
  --rk-secondary-soft: #FFF8E8;
  --rk-info-soft: #EAF2FF;
  --rk-success-soft: #EAF7EF;
  --rk-neutral-soft: #F1F5F9;
  --rk-soft-accent: var(--rk-primary-soft);
  --rk-soft-accent-hover: #DCEFED;
  --rk-soft-accent-border: #C7E2DF;
  --rk-ghost-hover: #F2EBDD;
  --rk-warning-soft: var(--rk-secondary-soft);
  --rk-warning-border: #EBD7A8;

  --rk-success: #2F855A;
  --rk-warning: #B7791F;
  --rk-danger: #C2413A;
  --rk-danger-hover: #A93631;
  --rk-info: #2B6CB0;
  --rk-neutral: #64748B;

  --rk-status-assigned-bg: var(--rk-primary-soft);
  --rk-status-assigned-text: #2F6F73;
  --rk-status-assigned-border: #C7E2DF;
  --rk-status-submitted-bg: var(--rk-info-soft);
  --rk-status-submitted-text: #2B6CB0;
  --rk-status-submitted-border: #BFD7F5;
  --rk-status-needs-revision-bg: #FFF4D6;
  --rk-status-needs-revision-text: #8A5A00;
  --rk-status-needs-revision-border: #E5C46B;
  --rk-status-checked-bg: var(--rk-success-soft);
  --rk-status-checked-text: #2F855A;
  --rk-status-checked-border: #BFE3CD;
  --rk-status-closed-bg: var(--rk-neutral-soft);
  --rk-status-closed-text: #64748B;
  --rk-status-closed-border: #CBD5E1;

  --rk-muted: var(--rk-text-secondary);
  --rk-surface-soft: var(--rk-soft-accent);
  --rk-shadow: 0 10px 28px rgba(31, 41, 55, 0.07);
  --rk-shadow-soft: 0 6px 18px rgba(31, 41, 55, 0.05);
  --rk-radius: 1rem;
  --rk-radius-lg: 1.25rem;
  --rk-focus: rgba(47, 111, 115, 0.2);

  --bs-body-bg: var(--rk-bg);
  --bs-body-color: var(--rk-text);
  --bs-border-color: var(--rk-border);
  --bs-link-color: var(--rk-primary);
  --bs-link-hover-color: var(--rk-primary-hover);
  --bs-primary-rgb: 47, 111, 115;
}

html {
  min-height: 100%;
}

*,
*::before,
*::after {
  min-width: 0;
}

body {
  min-height: 100%;
  background: var(--rk-bg);
  color: var(--rk-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.bg-light {
  background: var(--rk-bg) !important;
}

a {
  color: var(--rk-primary);
  overflow-wrap: anywhere;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--rk-primary-hover);
  text-decoration-thickness: 0.08em;
}

img,
svg,
video {
  max-width: 100%;
  height: auto;
}

iframe {
  max-width: 100%;
}

main.container {
  padding-bottom: 1.5rem;
}

main.container,
header .container,
header .container-fluid,
footer .container,
footer .container-fluid,
.rk-page,
.rk-section,
.row,
.card,
.card-body,
.rk-card,
.rk-card-compact,
.rk-card-primary,
.rk-empty-state,
.alert,
.table,
.table-responsive {
  max-width: 100%;
}

.rk-page {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.rk-page-header {
  margin-bottom: 1.5rem;
}

.rk-section {
  margin-bottom: 1.5rem;
}

.rk-muted {
  color: var(--rk-text-muted);
}

.rk-card,
.rk-card-compact {
  background: var(--rk-surface);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius-lg);
  box-shadow: var(--rk-shadow-soft);
}

.rk-card-primary {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius-lg);
  box-shadow: var(--rk-shadow-soft);
}

.rk-card,
.rk-card-primary {
  padding: 1.25rem;
}

.rk-card,
.rk-card-compact,
.rk-card-primary,
.rk-empty-state,
.alert,
.card,
.table,
.form-text,
.form-label,
.btn,
.badge {
  overflow-wrap: anywhere;
}

.rk-card-compact {
  padding: 1rem;
}

.rk-card-primary {
  box-shadow: var(--rk-shadow);
}

.rk-island {
  --rk-island-bg: var(--rk-neutral-soft);
  --rk-island-border: var(--rk-status-closed-border);
  --rk-island-accent: var(--rk-neutral);

  background: var(--rk-island-bg);
  border-color: var(--rk-island-border);
  position: relative;
}

.rk-island::before {
  background: var(--rk-island-accent);
  border-radius: 999px;
  bottom: 1rem;
  content: "";
  left: 0;
  pointer-events: none;
  position: absolute;
  top: 1rem;
  width: 4px;
}

.rk-island > * {
  position: relative;
}

.rk-island-next-lesson,
.rk-island-upcoming-lessons {
  --rk-island-bg: var(--rk-soft-accent);
  --rk-island-border: var(--rk-soft-accent-border);
  --rk-island-accent: var(--rk-primary);
}

.rk-island-homework,
.rk-island-review-queue {
  --rk-island-bg: var(--rk-warning-soft);
  --rk-island-border: var(--rk-warning-border);
  --rk-island-accent: var(--rk-warning);
}

.rk-island-history {
  --rk-island-bg: var(--rk-info-soft);
  --rk-island-border: var(--rk-status-submitted-border);
  --rk-island-accent: var(--rk-info);
}

.rk-island-courses {
  --rk-island-bg: var(--rk-secondary-soft);
  --rk-island-border: var(--rk-warning-border);
  --rk-island-accent: var(--rk-secondary);
}

.rk-island-students {
  --rk-island-bg: var(--rk-info-soft);
  --rk-island-border: var(--rk-status-submitted-border);
  --rk-island-accent: var(--rk-info);
}

.rk-island-secondary {
  box-shadow: none;
}

.rk-island-next-lesson h2,
.rk-island-upcoming-lessons h3 {
  color: var(--rk-primary);
}

.rk-island-next-lesson .rk-status-row,
.rk-island-upcoming-lessons .rk-status-row,
.rk-island-review-queue .rk-status-row {
  color: var(--rk-text-secondary);
}

.rk-island-review-queue .badge.text-bg-warning {
  background-color: var(--rk-warning-soft) !important;
  border-color: var(--rk-warning-border) !important;
  color: var(--rk-warning) !important;
}

.rk-homework-card {
  --rk-homework-bg: var(--rk-secondary-soft);
  --rk-homework-border: var(--rk-warning-border);
  --rk-homework-accent: var(--rk-secondary);

  background: var(--rk-homework-bg);
  border-color: var(--rk-homework-border);
  position: relative;
}

.rk-homework-card::before {
  background: var(--rk-homework-accent);
  border-radius: 999px;
  bottom: 1rem;
  content: "";
  left: 0;
  pointer-events: none;
  position: absolute;
  top: 1rem;
  width: 4px;
}

.rk-homework-card > * {
  position: relative;
}

.rk-homework-card-assigned {
  --rk-homework-bg: var(--rk-primary-soft);
  --rk-homework-border: var(--rk-status-assigned-border);
  --rk-homework-accent: var(--rk-primary);
}

.rk-homework-card-submitted {
  --rk-homework-bg: var(--rk-info-soft);
  --rk-homework-border: var(--rk-status-submitted-border);
  --rk-homework-accent: var(--rk-info);
}

.rk-homework-card-needs_revision {
  --rk-homework-bg: var(--rk-warning-soft);
  --rk-homework-border: var(--rk-status-needs-revision-border);
  --rk-homework-accent: var(--rk-warning);
}

.rk-homework-card-checked {
  --rk-homework-bg: var(--rk-success-soft);
  --rk-homework-border: var(--rk-status-checked-border);
  --rk-homework-accent: var(--rk-success);
}

.rk-homework-card-closed {
  --rk-homework-bg: var(--rk-neutral-soft);
  --rk-homework-border: var(--rk-status-closed-border);
  --rk-homework-accent: var(--rk-neutral);
}

.rk-homework-task,
.rk-homework-answer,
.rk-homework-feedback,
.rk-homework-materials,
.rk-homework-history,
.rk-review-card,
.rk-review-answer,
.rk-review-form,
.rk-review-feedback {
  overflow-wrap: anywhere;
}

.rk-homework-task {
  background: var(--rk-surface);
}

.rk-homework-answer,
.rk-review-answer {
  background: var(--rk-surface-elevated);
  box-shadow: var(--rk-shadow);
}

.rk-homework-materials,
.rk-homework-history {
  background: var(--rk-surface);
}

.rk-homework-feedback {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-review-form {
  background: var(--rk-surface-elevated);
}

.rk-homework-feedback-needs_revision,
.rk-review-feedback-needs_revision {
  background: var(--rk-status-needs-revision-bg);
  border-color: var(--rk-status-needs-revision-border);
}

.rk-homework-feedback-checked,
.rk-review-feedback-checked {
  background: var(--rk-status-checked-bg);
  border-color: var(--rk-status-checked-border);
}

.rk-homework-feedback-closed,
.rk-review-feedback-closed {
  background: var(--rk-status-closed-bg);
  border-color: var(--rk-status-closed-border);
}

.rk-student-homework-page .rk-section {
  margin-bottom: 1.25rem;
}

.rk-homework-meta {
  justify-content: flex-start;
}

.rk-homework-revision-note {
  background: var(--rk-status-needs-revision-bg);
  border-color: var(--rk-status-needs-revision-border);
}

.rk-current-answer,
.rk-homework-review-note,
.rk-file-first-box,
.rk-homework-link-fallback {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  padding: 0.875rem;
}

.rk-homework-review-note {
  border-color: var(--rk-status-checked-border);
}

.rk-file-first-box {
  border-color: var(--rk-soft-accent-border);
}

.rk-homework-link-fallback {
  background: var(--rk-surface);
}

.rk-homework-link-fallback > summary {
  align-items: center;
  display: flex;
  min-height: 2.25rem;
}

.rk-homework-technical-section {
  margin-top: -0.25rem;
}

.rk-lesson-files-block,
.rk-lesson-link-fallback {
  background: var(--rk-surface);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  padding: 1rem;
}

.rk-lesson-files-block {
  border-color: var(--rk-soft-accent-border);
}

.rk-lesson-file-list {
  display: grid;
  gap: 0.75rem;
}

.rk-lesson-file-list-compact {
  max-width: 34rem;
}

.rk-lesson-file-row {
  align-items: center;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  padding: 0.75rem;
}

.rk-lesson-link-fallback > summary {
  align-items: center;
  display: flex;
  min-height: 2.25rem;
}

.rk-review-form {
  border-color: var(--rk-border);
}

.rk-homework-card .rk-action-row,
.rk-review-card .rk-action-row,
.rk-review-form .rk-action-row {
  margin-top: 1rem;
}

.rk-student-dashboard .rk-section {
  margin-bottom: 1.25rem;
}

.rk-dashboard-header {
  align-items: center;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) minmax(12rem, 18rem);
}

.rk-dashboard-header-copy {
  min-width: 0;
}

.rk-dashboard-visual {
  aspect-ratio: 3 / 2;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  box-shadow: var(--rk-shadow-soft);
  justify-self: end;
  max-height: 220px;
  max-width: 18rem;
  overflow: hidden;
  width: 100%;
}

.rk-dashboard-illustration {
  display: block;
  height: 100%;
  object-fit: cover;
  object-position: center;
  width: 100%;
}

.rk-dashboard-inline-note {
  display: inline-flex;
  min-height: 2.375rem;
  padding: 0.45rem 0.7rem;
}

.rk-dashboard-events {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-test-dashboard {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-test-dashboard-list {
  display: grid;
  gap: 0.65rem;
}

.rk-test-dashboard-list-compact {
  gap: 0.5rem;
}

.rk-test-dashboard-item {
  align-items: center;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(0, 1fr) auto;
  min-width: 0;
  padding: 0.8rem 0.9rem;
}

.rk-test-dashboard-item.rk-test-state-continue {
  border-color: var(--rk-warning-border);
}

.rk-test-dashboard-item.rk-test-state-start {
  border-color: var(--rk-soft-accent-border);
}

.rk-test-dashboard-item.rk-test-state-result {
  background: var(--rk-success-soft);
  border-color: var(--rk-status-checked-border);
}

.rk-test-dashboard-main,
.rk-test-dashboard-action {
  min-width: 0;
}

.rk-test-dashboard-main {
  display: grid;
  gap: 0.3rem;
}

.rk-test-dashboard-kicker,
.rk-test-dashboard-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.55rem;
}

.rk-test-dashboard-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 0;
  overflow-wrap: anywhere;
}

.rk-test-dashboard-meta {
  color: var(--rk-text-secondary);
  font-size: 0.875rem;
  line-height: 1.35;
}

.rk-test-dashboard-meta a {
  color: var(--rk-text);
  font-weight: 600;
  text-decoration: none;
}

.rk-test-dashboard-meta a:hover,
.rk-test-dashboard-meta a:focus-visible {
  color: var(--rk-primary);
  text-decoration: underline;
}

.rk-test-dashboard-action {
  align-items: center;
  display: flex;
  justify-content: flex-end;
}

.rk-test-dashboard-action form {
  margin: 0;
}

.rk-test-dashboard-action .btn {
  white-space: normal;
}

.rk-test-dashboard-kind {
  background-color: var(--rk-neutral-soft) !important;
  border: 1px solid var(--rk-status-closed-border);
  color: var(--rk-text-secondary) !important;
}

.badge.rk-test-state-start {
  background-color: var(--rk-primary-soft) !important;
  border: 1px solid var(--rk-soft-accent-border);
  color: var(--rk-primary) !important;
}

.badge.rk-test-state-continue {
  background-color: var(--rk-warning-soft) !important;
  border: 1px solid var(--rk-warning-border);
  color: var(--rk-warning) !important;
}

.badge.rk-test-state-result {
  background-color: var(--rk-status-checked-bg) !important;
  border: 1px solid var(--rk-status-checked-border);
  color: var(--rk-status-checked-text) !important;
}

.badge.rk-test-state-muted {
  background-color: var(--rk-status-closed-bg) !important;
  border: 1px solid var(--rk-status-closed-border);
  color: var(--rk-status-closed-text) !important;
}

.rk-test-dashboard-recent {
  border-top: 1px solid var(--rk-border);
}

.rk-test-dashboard-subtitle {
  color: var(--rk-text-secondary);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.rk-test-dashboard-empty {
  margin-top: 0;
}

.rk-homework-list {
  display: grid;
  gap: 0.65rem;
}

.rk-homework-list-compact {
  gap: 0.5rem;
}

.rk-homework-row {
  align-items: center;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  color: var(--rk-text);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  min-width: 0;
  padding: 0.8rem 0.9rem;
  text-decoration: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, transform 0.16s ease;
}

.rk-homework-row:hover,
.rk-homework-row:focus-visible {
  border-color: var(--rk-soft-accent-border);
  box-shadow: var(--rk-shadow-soft);
  color: var(--rk-text);
  transform: translateY(-1px);
}

.rk-homework-row-assigned {
  background: #FFFBF2;
  border-color: #F3D7A8;
}

.rk-homework-row-needs-revision {
  background: #FFF5F7;
  border-color: #F1C3CA;
}

.rk-homework-row-submitted {
  background: var(--rk-info-soft);
  border-color: var(--rk-status-submitted-border);
}

.rk-homework-row-checked {
  background: var(--rk-success-soft);
  border-color: var(--rk-status-checked-border);
}

.rk-homework-row-closed {
  background: var(--rk-neutral-soft);
  border-color: var(--rk-status-closed-border);
}

.rk-homework-row-compact {
  padding-block: 0.65rem;
}

.rk-homework-row-main,
.rk-homework-row-side {
  min-width: 0;
}

.rk-homework-row-main {
  display: grid;
  gap: 0.3rem;
}

.rk-homework-row-title {
  font-weight: 700;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.rk-homework-row-meta {
  color: var(--rk-text-secondary);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.875rem;
  gap: 0.35rem 0.75rem;
  line-height: 1.35;
}

.rk-homework-row-side {
  align-items: flex-end;
  display: grid;
  gap: 0.4rem;
  justify-items: end;
}

.rk-homework-status-dot {
  border: 2px solid var(--rk-border);
  border-radius: 999px;
  display: inline-block;
  height: 0.85rem;
  width: 0.85rem;
}

.rk-homework-status-assigned {
  background: #F2A65A;
  border-color: #E6B26F;
}

.rk-homework-status-needs-revision {
  background: #F6A9B7;
  border-color: #E58FA0;
}

.rk-homework-status-submitted {
  background: var(--rk-info);
  border-color: var(--rk-status-submitted-border);
}

.rk-homework-status-checked {
  background: var(--rk-success);
  border-color: var(--rk-status-checked-border);
}

.rk-homework-status-closed {
  background: var(--rk-neutral);
  border-color: var(--rk-status-closed-border);
}

.rk-homework-action {
  align-items: center;
  background: var(--rk-surface);
  border: 1px solid var(--rk-border);
  border-radius: 999px;
  color: var(--rk-text);
  display: inline-flex;
  font-size: 0.85rem;
  font-weight: 700;
  justify-content: center;
  line-height: 1.2;
  min-height: 2rem;
  padding: 0.35rem 0.7rem;
  text-align: center;
  white-space: nowrap;
}

.rk-homework-action-primary {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
  color: var(--rk-primary);
}

.rk-event-list,
.rk-archive-list,
.rk-dashboard-course-list {
  display: grid;
  gap: 0.75rem;
}

.rk-event-item {
  align-items: flex-start;
  border-top: 1px solid var(--rk-border);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(4.5rem, auto) minmax(0, 1fr);
  padding-top: 0.75rem;
}

.rk-event-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.rk-event-date {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 999px;
  color: var(--rk-text-secondary);
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.2;
  padding: 0.35rem 0.55rem;
  text-align: center;
}

.rk-event-link {
  color: var(--rk-text);
  font-weight: 700;
  text-decoration: none;
}

.rk-event-link:hover,
.rk-event-link:focus-visible {
  color: var(--rk-primary);
  text-decoration: underline;
}

.rk-homework-feedback-note,
.rk-homework-materials-compact {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  padding: 0.75rem;
}

.rk-homework-feedback-note {
  border-color: var(--rk-status-needs-revision-border);
}

.rk-dashboard-details {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-dashboard-details > summary {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  min-height: 2.5rem;
}

.rk-archive-row {
  align-items: center;
  border-top: 1px solid var(--rk-border);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding-top: 0.75rem;
}

.rk-archive-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.rk-dashboard-course-list {
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
}

.rk-dashboard-course-chip {
  background: var(--rk-primary-soft);
  border: 1px solid var(--rk-soft-accent-border);
  border-radius: var(--rk-radius);
  color: var(--rk-text);
  display: grid;
  gap: 0.15rem;
  padding: 0.65rem 0.75rem;
  text-decoration: none;
}

.rk-dashboard-course-chip:hover,
.rk-dashboard-course-chip:focus-visible {
  background: var(--rk-soft-accent-hover);
  color: var(--rk-text);
}

.rk-student-dashboard,
.rk-student-homework-page,
.rk-student-lesson-history,
.rk-student-dashboard .row,
.rk-student-homework-page .row,
.rk-student-lesson-history .row,
.rk-student-dashboard [class*="col-"],
.rk-student-homework-page [class*="col-"],
.rk-student-lesson-history [class*="col-"],
.rk-student-dashboard .rk-card,
.rk-student-dashboard .rk-card-compact,
.rk-student-homework-page .rk-card,
.rk-student-homework-page .rk-card-compact,
.rk-student-lesson-history .card,
.rk-student-lesson-history .card-body {
  max-width: 100%;
  min-width: 0;
}

.rk-student-dashboard .rk-card,
.rk-student-dashboard .rk-card-compact,
.rk-student-dashboard .rk-empty-state,
.rk-student-homework-page .rk-card,
.rk-student-homework-page .rk-card-compact,
.rk-student-homework-page .rk-empty-state,
.rk-student-lesson-history,
.rk-student-lesson-history .card,
.rk-student-lesson-history .border {
  overflow-wrap: anywhere;
}

.rk-student-dashboard .badge,
.rk-student-homework-page .badge,
.rk-student-lesson-history .badge {
  max-width: 100%;
  white-space: normal;
}

.rk-student-dashboard .btn,
.rk-student-homework-page .btn,
.rk-student-lesson-history .btn {
  white-space: normal;
}

.rk-student-homework-page form,
.rk-student-homework-page form > *,
.rk-student-homework-page input,
.rk-student-homework-page textarea,
.rk-student-homework-page details,
.rk-student-lesson-history .d-flex,
.rk-student-lesson-history .flex-grow-1,
.rk-student-lesson-history .rk-lesson-history-list,
.rk-student-lesson-history .rk-lesson-file-list,
.rk-student-lesson-history .rk-lesson-file-row > div {
  max-width: 100%;
  min-width: 0;
}

.rk-student-homework-page input[type="file"] {
  overflow: hidden;
}

.rk-student-lesson-history .rk-lesson-file-list-compact {
  max-width: 100%;
}

.rk-tutor-workspace {
  gap: 1.35rem;
}

.rk-tutor-workspace,
.rk-tutor-workspace .row,
.rk-tutor-workspace [class*="col-"],
.rk-tutor-panel,
.rk-tutor-panel .row,
.rk-tutor-calendar-card,
.rk-tutor-student-list,
.rk-tutor-secondary-actions {
  max-width: 100%;
  min-width: 0;
}

.rk-tutor-panel,
.rk-tutor-lesson-item,
.rk-tutor-homework-item,
.rk-tutor-student-row,
.rk-student-profile-card,
.rk-student-work-summary {
  overflow-wrap: anywhere;
}

.rk-tutor-panel-primary {
  background: var(--rk-island-bg, var(--rk-primary-soft));
  border-color: var(--rk-island-border, var(--rk-soft-accent-border));
}

.rk-tutor-panel-review {
  background: var(--rk-homework-bg, var(--rk-island-bg, var(--rk-warning-soft)));
  border-color: var(--rk-homework-border, var(--rk-island-border, var(--rk-warning-border)));
}

.rk-tutor-panel-students {
  background: var(--rk-island-bg, var(--rk-info-soft));
  border-color: var(--rk-island-border, var(--rk-status-submitted-border));
}

.rk-tutor-panel-secondary {
  background: var(--rk-homework-bg, var(--rk-island-bg, var(--rk-neutral-soft)));
  border-color: var(--rk-homework-border, var(--rk-island-border, var(--rk-status-closed-border)));
}

.rk-tutor-placeholder-card {
  border-style: dashed;
  color: var(--rk-text-secondary);
  padding-block: 1rem;
}

.rk-tutor-placeholder-card h2 {
  color: var(--rk-text);
}

.rk-tutor-lesson-form-card .form-label {
  color: var(--rk-text);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.rk-tutor-lesson-form-card .form-control,
.rk-tutor-lesson-form-card .form-select {
  max-width: 100%;
  min-width: 0;
  text-overflow: ellipsis;
}

.rk-tutor-lesson-form-card .btn[type="submit"],
.rk-tutor-student-details .btn[type="submit"] {
  max-width: 100%;
}

.rk-tutor-calendar-card {
  padding-block: 1rem;
}

.rk-tutor-calendar-tabs {
  display: grid;
  gap: 0.35rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rk-tutor-calendar-tab {
  border: 1px solid var(--rk-border);
  border-radius: 0.5rem;
  color: var(--rk-text-secondary);
  font-size: 0.85rem;
  font-weight: 700;
  min-width: 0;
  padding: 0.45rem 0.35rem;
  text-align: center;
  text-decoration: none;
}

.rk-tutor-calendar-tab:hover,
.rk-tutor-calendar-tab:focus-visible,
.rk-tutor-calendar-tab.is-active {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
  color: var(--rk-text);
}

.rk-tutor-calendar-nav {
  align-items: center;
  display: grid;
  gap: 0.45rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
}

.rk-tutor-calendar-nav-btn {
  min-width: 2.25rem;
}

.rk-tutor-calendar-today {
  min-width: 0;
  overflow-wrap: anywhere;
}

.rk-tutor-calendar-week-list,
.rk-tutor-calendar-lesson-list,
.rk-tutor-calendar-month-list,
.rk-tutor-calendar-month-lessons {
  display: grid;
  gap: 0.55rem;
}

.rk-tutor-calendar-day,
.rk-tutor-calendar-month-row {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 0.5rem;
  min-width: 0;
  padding: 0.65rem;
}

.rk-tutor-calendar-day.is-today,
.rk-tutor-calendar-month-row.is-today {
  border-color: var(--rk-soft-accent-border);
}

.rk-tutor-calendar-day-head {
  align-items: center;
  color: var(--rk-text);
  display: flex;
  font-size: 0.9rem;
  font-weight: 800;
  gap: 0.5rem;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.rk-tutor-calendar-lesson {
  align-items: start;
  background: var(--rk-surface);
  border: 1px solid var(--rk-border);
  border-radius: 0.5rem;
  color: var(--rk-text);
  display: grid;
  gap: 0.2rem 0.5rem;
  grid-template-columns: auto minmax(0, 1fr);
  min-width: 0;
  padding: 0.5rem;
  text-decoration: none;
}

.rk-tutor-calendar-lesson:hover,
.rk-tutor-calendar-lesson:focus-visible {
  border-color: var(--rk-soft-accent-border);
  color: var(--rk-text);
}

.rk-tutor-calendar-time {
  color: var(--rk-primary);
  font-size: 0.85rem;
  font-weight: 800;
  line-height: 1.35;
  white-space: nowrap;
}

.rk-tutor-calendar-main,
.rk-tutor-calendar-title,
.rk-tutor-calendar-meta,
.rk-tutor-calendar-status {
  min-width: 0;
}

.rk-tutor-calendar-main {
  display: grid;
  gap: 0.1rem;
}

.rk-tutor-calendar-title {
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.rk-tutor-calendar-meta {
  color: var(--rk-text-secondary);
  font-size: 0.78rem;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.rk-tutor-calendar-status {
  grid-column: 2;
}

.rk-tutor-calendar-status .badge {
  font-size: 0.68rem;
  max-width: 100%;
  white-space: normal;
}

.rk-tutor-calendar-month-row {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: auto minmax(0, 1fr);
}

.rk-tutor-calendar-month-date {
  align-items: center;
  background: var(--rk-primary-soft);
  border-radius: 0.5rem;
  color: var(--rk-text);
  display: flex;
  flex-direction: column;
  font-weight: 800;
  gap: 0.05rem;
  min-width: 2.55rem;
  padding: 0.35rem 0.45rem;
}

.rk-tutor-calendar-month-date small {
  color: var(--rk-text-secondary);
  font-size: 0.72rem;
}

.rk-tutor-calendar-month-main {
  min-width: 0;
}

.rk-tutor-calendar-month-main .small {
  overflow-wrap: anywhere;
}

.rk-tutor-test-review {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-tutor-test-review-list {
  display: grid;
  gap: 0.65rem;
}

.rk-tutor-test-review-item {
  align-items: center;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(0, 1fr) auto auto;
  min-width: 0;
  padding: 0.8rem 0.9rem;
}

.rk-tutor-test-review-main,
.rk-tutor-test-review-action {
  min-width: 0;
}

.rk-tutor-test-review-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 0.35rem;
  overflow-wrap: anywhere;
}

.rk-tutor-test-review-meta {
  color: var(--rk-text-secondary);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.875rem;
  gap: 0.35rem 0.65rem;
  line-height: 1.35;
}

.rk-tutor-test-review-meta a {
  color: var(--rk-text);
  font-weight: 600;
  text-decoration: none;
}

.rk-tutor-test-review-meta a:hover,
.rk-tutor-test-review-meta a:focus-visible {
  color: var(--rk-primary);
  text-decoration: underline;
}

.rk-tutor-test-review-score {
  align-items: center;
  background: var(--rk-success-soft);
  border: 1px solid var(--rk-status-checked-border);
  border-radius: 999px;
  color: var(--rk-status-checked-text);
  display: inline-flex;
  font-size: 0.9rem;
  font-weight: 800;
  justify-content: center;
  line-height: 1;
  min-width: 4rem;
  max-width: 100%;
  padding: 0.45rem 0.65rem;
  white-space: nowrap;
}

.rk-tutor-test-review-action {
  align-items: center;
  display: flex;
  justify-content: flex-end;
}

.rk-tutor-test-review-action .btn {
  max-width: 100%;
}

.rk-tutor-test-review-empty {
  margin: 0;
}

.rk-collapsible-card {
  overflow: hidden;
}

.rk-collapsible-summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  list-style: none;
  min-height: 2.75rem;
  min-width: 0;
}

.rk-collapsible-summary::-webkit-details-marker {
  display: none;
}

.rk-collapsible-summary::after {
  color: var(--rk-text-secondary);
  content: "▾";
  flex: 0 0 auto;
  font-size: 0.9rem;
  transition: transform 0.16s ease;
}

.rk-collapsible-card[open] > .rk-collapsible-summary::after {
  transform: rotate(180deg);
}

.rk-collapsible-title {
  color: var(--rk-text);
  display: block;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.rk-collapsible-muted {
  color: var(--rk-text-secondary);
  display: block;
  font-size: 0.875rem;
  margin-top: 0.15rem;
}

.rk-collapsible-body {
  border-top: 1px solid var(--rk-border);
  margin-top: 0.75rem;
  padding-top: 0.75rem;
}

.rk-tutor-secondary-actions {
  background: var(--rk-neutral-soft);
  border-color: var(--rk-status-closed-border);
}

.rk-tutor-quick-actions {
  background: var(--rk-surface-elevated);
  border-color: var(--rk-soft-accent-border);
}

.rk-tutor-quick-actions .rk-action-row {
  gap: 0.625rem;
}

.rk-tutor-quick-action {
  align-items: center;
  justify-content: center;
}

.rk-tutor-student-list {
  background: var(--rk-surface-elevated);
}

.rk-tutor-student-row summary {
  border-radius: var(--rk-radius);
  min-height: 2.75rem;
  padding-block: 0.125rem;
}

.rk-tutor-student-details {
  background: var(--rk-surface);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  padding: 1rem;
}

.rk-tutor-lesson-list,
.rk-tutor-homework-list {
  gap: 1rem;
}

.rk-tutor-lesson-item,
.rk-tutor-homework-item {
  border-color: var(--rk-border);
}

.rk-tutor-lesson-item .rk-status-row,
.rk-tutor-homework-item .rk-status-row {
  color: var(--rk-text-secondary);
}

.rk-student-profile-card {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
  position: relative;
}

.rk-student-profile-card::before {
  background: var(--rk-primary);
  border-radius: 999px;
  bottom: 1rem;
  content: "";
  left: 0;
  pointer-events: none;
  position: absolute;
  top: 1rem;
  width: 4px;
}

.rk-student-profile-card > * {
  position: relative;
}

.rk-student-work-summary {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-hero-with-visual {
  align-items: center;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, 1.1fr) minmax(16rem, 0.9fr);
}

.rk-hero-with-visual-compact {
  grid-template-columns: minmax(0, 1.2fr) minmax(15rem, 0.8fr);
}

.rk-hero-copy {
  min-width: 0;
}

.rk-hero-visual {
  aspect-ratio: 16 / 9;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  box-shadow: var(--rk-shadow-soft);
  max-height: 360px;
  overflow: hidden;
  width: 100%;
}

.rk-hero-illustration {
  display: block;
  height: 100%;
  object-fit: cover;
  object-position: center;
  width: 100%;
}

.rk-course-hero .rk-hero-visual {
  max-height: 300px;
}

.rk-home-page {
  gap: 1.75rem;
}

.rk-home-hero {
  background: var(--rk-primary-soft);
  border: 1px solid var(--rk-soft-accent-border);
  border-radius: var(--rk-radius-lg);
  box-shadow: var(--rk-shadow);
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

.rk-home-title {
  max-width: 52rem;
}

.rk-home-lead {
  max-width: 44rem;
}

.rk-home-hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.rk-home-hero-points span,
.rk-home-subject-label {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 999px;
  color: var(--rk-text-secondary);
  display: inline-flex;
  font-size: 0.86rem;
  font-weight: 600;
  line-height: 1.2;
  padding: 0.4rem 0.7rem;
}

.rk-home-subject-label {
  align-self: flex-start;
  margin-bottom: 0.85rem;
}

.rk-home-subject-grid,
.rk-home-steps,
.rk-home-parent-block {
  display: grid;
  gap: 1rem;
}

.rk-home-subject-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rk-home-subject-card {
  display: flex;
  flex-direction: column;
}

.rk-home-subject-primary {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-home-subject-warm {
  background: var(--rk-secondary-soft);
  border-color: var(--rk-warning-border);
}

.rk-home-subject-info {
  background: var(--rk-info-soft);
  border-color: var(--rk-status-submitted-border);
}

.rk-home-card-link {
  font-weight: 600;
  margin-top: auto;
}

.rk-home-flow {
  display: grid;
  gap: 1.25rem;
}

.rk-home-steps {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rk-home-step {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  box-shadow: var(--rk-shadow-soft);
  padding: 1rem;
}

.rk-home-step-number {
  align-items: center;
  background: var(--rk-primary);
  border-radius: 999px;
  color: var(--rk-surface-elevated);
  display: inline-flex;
  font-size: 0.85rem;
  font-weight: 700;
  height: 2rem;
  justify-content: center;
  line-height: 1;
  margin-bottom: 0.75rem;
  width: 2rem;
}

.rk-home-parent-block {
  grid-template-columns: minmax(0, 1.4fr) minmax(16rem, 0.8fr);
}

.rk-home-parent-card {
  background: var(--rk-surface);
}

.rk-home-platform-card {
  background: var(--rk-secondary-soft);
  border-color: var(--rk-warning-border);
}

.rk-home-check-list {
  color: var(--rk-text-secondary);
  display: grid;
  gap: 0.5rem;
  padding-left: 1.25rem;
}

.rk-home-tutor-card {
  overflow: hidden;
}

.rk-home-final-cta {
  align-items: center;
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
}

.rk-home-final-actions {
  flex: 0 0 auto;
}

.rk-course-grid {
  row-gap: 1.5rem;
}

.rk-course-page {
  gap: 1.35rem;
}

.rk-course-card {
  --rk-course-bg: var(--rk-secondary-soft);
  --rk-course-border: var(--rk-warning-border);
  --rk-course-accent: var(--rk-secondary);

  background: var(--rk-course-bg);
  border-color: var(--rk-course-border);
  position: relative;
}

.rk-course-card::before {
  background: var(--rk-course-accent);
  border-radius: 999px;
  bottom: 1rem;
  content: "";
  left: 0;
  pointer-events: none;
  position: absolute;
  top: 1rem;
  width: 4px;
}

.rk-course-card > * {
  position: relative;
}

.rk-course-card-active {
  --rk-course-bg: var(--rk-success-soft);
  --rk-course-border: var(--rk-status-checked-border);
  --rk-course-accent: var(--rk-success);
}

.rk-course-card-draft {
  --rk-course-bg: var(--rk-warning-soft);
  --rk-course-border: var(--rk-status-needs-revision-border);
  --rk-course-accent: var(--rk-warning);
}

.rk-course-meta,
.rk-course-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.rk-course-meta {
  align-items: center;
}

.rk-course-description {
  color: var(--rk-text-secondary);
  overflow-wrap: anywhere;
}

.rk-course-actions {
  align-items: center;
}

.rk-course-hero {
  background: var(--rk-soft-accent);
  border-color: var(--rk-soft-accent-border);
}

.rk-course-hero-meta {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.rk-course-workspace-hero {
  background: var(--rk-surface-elevated);
  border-color: var(--rk-soft-accent-border);
}

.rk-course-workspace-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.65fr);
}

.rk-course-workspace-note {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-course-detail-summary {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.rk-course-summary-card {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-course-summary-card-primary {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-course-summary-card-warm {
  background: var(--rk-secondary-soft);
  border-color: var(--rk-warning-border);
}

.rk-course-summary-card-info {
  background: var(--rk-info-soft);
  border-color: var(--rk-status-submitted-border);
}

.rk-course-directions {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rk-course-direction-card {
  display: flex;
  gap: 1rem;
  min-height: 100%;
}

.rk-course-direction-card-primary {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-course-direction-card-info {
  background: var(--rk-info-soft);
  border-color: var(--rk-status-submitted-border);
}

.rk-course-direction-card-neutral {
  background: var(--rk-neutral-soft);
  border-color: var(--rk-status-closed-border);
}

.rk-course-direction-icon {
  align-items: center;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 0.9rem;
  color: var(--rk-primary);
  display: inline-flex;
  flex: 0 0 3rem;
  font-weight: 800;
  height: 3rem;
  justify-content: center;
  line-height: 1;
}

.rk-course-direction-body {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
}

.rk-course-class-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.rk-course-class-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: space-between;
}

.rk-course-class-content {
  display: grid;
  gap: 0.75rem;
}

.rk-course-meta-pill {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 999px;
  color: var(--rk-text-secondary);
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.2;
  padding: 0.35rem 0.65rem;
}

.rk-course-counts {
  color: var(--rk-text-secondary);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.9rem;
  gap: 0.45rem;
}

.rk-course-counts span {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
}

.rk-course-legacy {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-internal-course-card {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-course-mini-meta,
.rk-course-mini-counts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.rk-course-mini-counts {
  color: var(--rk-text-secondary);
  font-size: 0.86rem;
}

.rk-course-mini-counts span {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 999px;
  padding: 0.28rem 0.55rem;
}

.rk-course-link {
  align-self: flex-start;
}

.rk-internal-course-chip {
  background: var(--rk-primary-soft);
  border: 1px solid var(--rk-soft-accent-border);
  border-radius: 0.85rem;
  color: var(--rk-text);
  display: grid;
  gap: 0.2rem;
  padding: 0.65rem 0.75rem;
  text-decoration: none;
}

.rk-internal-course-chip:hover {
  background: var(--rk-soft-accent-hover);
  color: var(--rk-text);
}

.rk-student-course-summary {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.rk-course-section {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-course-future-block {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-course-path {
  background: var(--rk-surface-elevated);
  border-color: var(--rk-border);
}

.rk-course-program {
  display: grid;
  gap: 1rem;
}

.rk-course-program-header {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius-lg);
  box-shadow: var(--rk-shadow-soft);
  padding: 1.25rem;
}

.rk-course-section-list {
  display: grid;
  gap: 1rem;
}

.rk-course-section-card {
  background: var(--rk-surface);
  border-color: var(--rk-border);
}

.rk-course-section-heading {
  align-items: flex-start;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.rk-course-section-label {
  color: var(--rk-primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rk-course-section-note {
  color: var(--rk-text-secondary);
  font-size: 0.92rem;
  line-height: 1.45;
}

.rk-course-topic-count {
  flex: 0 0 auto;
  white-space: nowrap;
}

.rk-course-topic-list {
  display: grid;
  gap: 0.55rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.rk-course-topic-item {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 0.85rem;
  color: var(--rk-text-secondary);
  line-height: 1.45;
  overflow-wrap: anywhere;
  padding: 0.65rem 0.8rem;
}

.rk-course-topic-item:hover,
.rk-course-topic-item:focus-within {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-course-workspace-program .rk-course-program-header {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-course-topic-work-list {
  display: grid;
  gap: 0.65rem;
}

.rk-course-topic-row {
  align-items: center;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  color: var(--rk-text);
  display: grid;
  gap: 0.85rem;
  grid-template-columns: minmax(0, 1fr) auto;
  line-height: 1.45;
  overflow-wrap: anywhere;
  padding: 0.85rem;
  text-decoration: none;
}

.rk-course-topic-row:hover,
.rk-course-topic-row:focus-visible {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
  color: var(--rk-text);
  text-decoration: none;
}

.rk-course-topic-row-main {
  display: grid;
  gap: 0.3rem;
  min-width: 0;
}

.rk-course-topic-row-title {
  font-weight: 700;
  line-height: 1.25;
}

.rk-course-topic-row-description,
.rk-course-topic-meta {
  color: var(--rk-text-secondary);
  font-size: 0.9rem;
}

.rk-course-topic-meta {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
}

.rk-topic-link {
  color: inherit;
  display: block;
  overflow-wrap: anywhere;
  text-decoration: none;
}

.rk-topic-link:hover,
.rk-topic-link:focus {
  color: var(--rk-primary);
  text-decoration: none;
}

.rk-topic-detail-hero {
  display: grid;
  gap: 1.25rem;
}

.rk-topic-breadcrumb {
  align-items: center;
  color: var(--rk-text-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.86rem;
  font-weight: 600;
  gap: 0.35rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.rk-topic-breadcrumb a {
  color: var(--rk-primary);
  text-decoration: none;
}

.rk-topic-breadcrumb a:hover,
.rk-topic-breadcrumb a:focus {
  color: var(--rk-primary-hover);
  text-decoration: underline;
}

.rk-topic-context-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
}

.rk-topic-context-card {
  background: var(--rk-surface);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius-lg);
  box-shadow: var(--rk-shadow-soft);
  overflow-wrap: anywhere;
  padding: 1.25rem;
}

.rk-topic-description {
  background: var(--rk-surface);
  border-color: var(--rk-border);
  overflow-wrap: anywhere;
}

.rk-topic-cta {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-materials-card,
.rk-admin-material-form {
  background: var(--rk-surface);
  border-color: var(--rk-border);
  overflow-wrap: anywhere;
}

.rk-materials-list {
  display: grid;
  gap: 0.75rem;
}

.rk-course-material-list {
  display: grid;
  gap: 0.75rem;
}

.rk-material-item {
  align-items: flex-start;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 0.85rem;
}

.rk-course-material-item {
  align-items: flex-start;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  overflow-wrap: anywhere;
  padding: 0.85rem;
}

.rk-material-meta {
  align-items: center;
  color: var(--rk-text-secondary);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.86rem;
  gap: 0.4rem 0.75rem;
  line-height: 1.4;
}

.rk-material-actions {
  align-items: center;
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.rk-material-actions form {
  margin: 0;
}

.rk-course-empty-state {
  background: var(--rk-neutral-soft);
  border-color: var(--rk-status-closed-border);
  color: var(--rk-text-secondary);
}

.rk-course-cta {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-course-status {
  background-color: var(--rk-status-closed-bg) !important;
  border-color: var(--rk-status-closed-border) !important;
  color: var(--rk-status-closed-text) !important;
}

.rk-course-status-active {
  background-color: var(--rk-status-checked-bg) !important;
  border-color: var(--rk-status-checked-border) !important;
  color: var(--rk-status-checked-text) !important;
}

.rk-course-status-draft {
  background-color: var(--rk-status-needs-revision-bg) !important;
  border-color: var(--rk-status-needs-revision-border) !important;
  color: var(--rk-status-needs-revision-text) !important;
}

.rk-course-status-neutral {
  background-color: var(--rk-status-closed-bg) !important;
  border-color: var(--rk-status-closed-border) !important;
  color: var(--rk-status-closed-text) !important;
}

.rk-course-page,
.rk-topic-page,
.rk-test-page,
.rk-test-review-page,
.rk-test-attach-page,
.rk-admin-dashboard-page,
.rk-admin-material-page,
.rk-course-page .row,
.rk-topic-page .row,
.rk-test-page .row,
.rk-test-review-page .row,
.rk-test-attach-page .row,
.rk-admin-dashboard-page .row,
.rk-admin-material-page .row,
.rk-course-page [class*="col-"],
.rk-topic-page [class*="col-"],
.rk-test-page [class*="col-"],
.rk-test-review-page [class*="col-"],
.rk-test-attach-page [class*="col-"],
.rk-admin-dashboard-page [class*="col-"],
.rk-admin-material-page [class*="col-"],
.rk-course-page .rk-card,
.rk-course-page .rk-card-primary,
.rk-course-page .rk-card-compact,
.rk-topic-page .rk-card,
.rk-topic-page .rk-card-primary,
.rk-topic-page .rk-card-compact,
.rk-test-page .rk-card,
.rk-test-page .rk-card-primary,
.rk-test-page .rk-card-compact,
.rk-test-review-page .rk-card,
.rk-test-review-page .rk-card-primary,
.rk-test-review-page .rk-card-compact,
.rk-test-attach-page .rk-card,
.rk-test-attach-page .rk-card-primary,
.rk-test-attach-page .rk-card-compact,
.rk-admin-dashboard-page .card,
.rk-admin-dashboard-page .card-body,
.rk-admin-material-page .rk-card,
.rk-admin-material-page .rk-card-primary,
.rk-admin-material-page .rk-card-compact {
  max-width: 100%;
  min-width: 0;
}

.rk-course-page,
.rk-topic-page,
.rk-test-page,
.rk-test-review-page,
.rk-test-attach-page,
.rk-admin-dashboard-page,
.rk-admin-material-page {
  overflow-wrap: anywhere;
}

.rk-course-page .badge,
.rk-topic-page .badge,
.rk-test-page .badge,
.rk-test-review-page .badge,
.rk-test-attach-page .badge,
.rk-admin-dashboard-page .badge,
.rk-admin-material-page .badge {
  max-width: 100%;
  white-space: normal;
}

.rk-course-page .btn,
.rk-topic-page .btn,
.rk-test-page .btn,
.rk-test-review-page .btn,
.rk-test-attach-page .btn,
.rk-admin-dashboard-page .btn,
.rk-admin-material-page .btn {
  white-space: normal;
}

.rk-course-page input,
.rk-course-page select,
.rk-course-page textarea,
.rk-topic-page input,
.rk-topic-page select,
.rk-topic-page textarea,
.rk-test-page input,
.rk-test-page select,
.rk-test-page textarea,
.rk-test-review-page input,
.rk-test-review-page select,
.rk-test-review-page textarea,
.rk-test-attach-page input,
.rk-test-attach-page select,
.rk-test-attach-page textarea,
.rk-admin-dashboard-page input,
.rk-admin-dashboard-page select,
.rk-admin-dashboard-page textarea,
.rk-admin-material-page input,
.rk-admin-material-page select,
.rk-admin-material-page textarea,
.rk-test-page form,
.rk-test-page form > *,
.rk-test-review-page form,
.rk-test-review-page form > *,
.rk-test-attach-page form,
.rk-test-attach-page form > *,
.rk-admin-dashboard-page form,
.rk-admin-dashboard-page form > *,
.rk-admin-material-page form,
.rk-admin-material-page form > * {
  max-width: 100%;
  min-width: 0;
}

.rk-course-page .table-responsive,
.rk-topic-page .table-responsive,
.rk-test-page .table-responsive,
.rk-test-review-page .table-responsive,
.rk-test-attach-page .table-responsive,
.rk-admin-dashboard-page .table-responsive,
.rk-admin-material-page .table-responsive {
  max-width: 100%;
  overflow-x: auto;
}

.rk-admin-dashboard-page .rk-admin-quick-actions .btn {
  align-items: center;
  display: inline-flex;
  justify-content: center;
  min-height: 2.65rem;
  min-width: 6.75rem;
  white-space: nowrap;
}

.rk-admin-dashboard-page .rk-admin-roster-search {
  width: min(100%, 32rem);
}

@media (min-width: 992px) {
  .rk-admin-dashboard-page .rk-admin-roster-search {
    flex: 0 1 32rem;
  }
}

.rk-admin-dashboard-page .rk-admin-roster-panel {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 0.9rem;
  height: 100%;
  padding: 1rem;
}

.rk-admin-dashboard-page .rk-admin-roster-list {
  display: grid;
  gap: 0.75rem;
  max-height: 30rem;
  overflow-y: auto;
  padding-right: 0.25rem;
}

.rk-admin-dashboard-page .rk-admin-roster-item {
  background: var(--rk-surface);
  border: 1px solid var(--rk-border);
  border-radius: 0.75rem;
  overflow-wrap: anywhere;
  padding: 0.9rem;
}

.rk-admin-dashboard-page .rk-admin-roster-item .badge {
  max-width: 100%;
}

.rk-admin-dashboard-page .rk-admin-tutor-students > summary {
  cursor: pointer;
}

@media (max-width: 1199.98px) {
  .rk-admin-dashboard-page .rk-admin-roster-panel {
    height: auto;
  }
}

.rk-admin-dashboard-page .rk-admin-course-create > summary {
  cursor: pointer;
  overflow-wrap: anywhere;
}

.rk-admin-dashboard-page .rk-admin-course-create-summary {
  align-items: center;
  display: flex;
  gap: 0.75rem 1rem;
  justify-content: space-between;
}

.rk-admin-dashboard-page .rk-admin-course-create[open] > summary {
  border-bottom: 1px solid var(--rk-border);
  margin-bottom: 1.5rem;
}

.rk-admin-dashboard-page #admin-courses,
.rk-admin-dashboard-page #admin-lessons,
.rk-admin-dashboard-page #admin-student-assignment,
.rk-admin-dashboard-page #admin-tutors {
  scroll-margin-top: 1rem;
}

.rk-work-conditions-hero {
  background: var(--rk-surface-elevated);
}

.rk-work-conditions-intro {
  max-width: 48rem;
}

.rk-work-conditions-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
}

.rk-work-conditions-list {
  display: grid;
  gap: 0.75rem;
}

.rk-condition-card {
  border-color: var(--rk-status-closed-border);
  display: grid;
  gap: 0.35rem;
  position: relative;
}

.rk-condition-card-primary {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-condition-card-warm {
  background: var(--rk-secondary-soft);
  border-color: var(--rk-warning-border);
}

.rk-condition-card-info {
  background: var(--rk-info-soft);
  border-color: var(--rk-status-submitted-border);
}

.rk-condition-number {
  align-items: center;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: 999px;
  color: var(--rk-primary);
  display: inline-flex;
  font-size: 0.85rem;
  font-weight: 700;
  height: 2rem;
  justify-content: center;
  line-height: 1;
  margin-bottom: 0.4rem;
  width: 2rem;
}

.rk-collapsible-summary .rk-condition-number {
  margin-bottom: 0;
}

.rk-work-conditions-cta {
  align-items: center;
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
}

.rk-work-conditions-actions {
  flex: 0 0 auto;
}

.rk-test-toolbar,
.rk-test-list,
.rk-test-version-list {
  display: grid;
  gap: 0.75rem;
}

.rk-test-toolbar {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
}

.rk-test-card,
.rk-test-version-item {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.rk-test-card-actions {
  align-self: center;
}

.rk-test-excerpt,
.rk-test-description {
  white-space: pre-line;
}

.rk-test-workflow {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
  display: grid;
  gap: 1rem;
}

.rk-test-workflow-steps {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rk-test-workflow-step {
  align-items: flex-start;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  display: flex;
  gap: 0.75rem;
  min-width: 0;
  padding: 0.85rem;
}

.rk-test-workflow-step-active {
  border-color: var(--rk-soft-accent-border);
  box-shadow: inset 0 0 0 1px var(--rk-soft-accent-border);
}

.rk-test-workflow-number {
  align-items: center;
  background: var(--rk-primary);
  border-radius: 999px;
  color: var(--rk-surface-elevated);
  display: inline-flex;
  flex: 0 0 2rem;
  font-size: 0.85rem;
  font-weight: 800;
  height: 2rem;
  justify-content: center;
  line-height: 1;
}

.rk-test-primary-action {
  align-items: center;
}

.rk-test-publish-note,
.rk-test-form-hint {
  color: var(--rk-text-secondary);
  font-size: 0.92rem;
}

.rk-test-form-hint {
  background: var(--rk-primary-soft);
  border: 1px solid var(--rk-soft-accent-border);
  border-radius: var(--rk-radius);
  padding: 0.85rem;
}

.rk-test-settings-grid,
.rk-test-detail-grid {
  display: grid;
  gap: 1rem;
}

.rk-test-settings-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rk-test-detail-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(16rem, 0.9fr);
}

.rk-test-setting {
  background: var(--rk-neutral-soft);
  border-radius: var(--rk-radius);
  padding: 1rem;
}

.rk-test-settings-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
}

.rk-test-settings-list div {
  align-items: baseline;
  border-bottom: 1px solid var(--rk-border);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(8rem, 0.6fr) minmax(0, 1fr);
  padding-bottom: 0.75rem;
}

.rk-test-settings-list div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.rk-test-settings-list dt {
  color: var(--rk-text-muted);
  font-size: 0.875rem;
  font-weight: 600;
}

.rk-test-settings-list dd {
  margin: 0;
}

.rk-test-placeholder {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
}

.rk-test-question-list {
  display: grid;
  gap: 0.75rem;
  grid-column: 1 / -1;
}

.rk-test-question-card {
  align-items: flex-start;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  display: grid;
  gap: 0.875rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 0.875rem;
}

.rk-test-question-card-muted {
  background: var(--rk-neutral-soft);
  opacity: 0.78;
}

.rk-test-question-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}

.rk-test-question-actions {
  justify-content: flex-end;
}

.rk-test-question-form {
  max-width: 980px;
}

.rk-test-question-empty {
  border-style: dashed;
}

.rk-test-question-section {
  border-top: 1px solid var(--rk-border);
  padding-top: 1rem;
}

.rk-test-type-hint {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rk-test-type-hint-item {
  background: var(--rk-primary-soft);
  border: 1px solid var(--rk-soft-accent-border);
  border-radius: var(--rk-radius);
  display: grid;
  gap: 0.25rem;
  line-height: 1.4;
  padding: 0.75rem;
}

.rk-test-type-hint-item span {
  color: var(--rk-text-secondary);
  font-size: 0.9rem;
}

.rk-test-option-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.rk-test-option-row {
  background: var(--rk-neutral-soft);
  border-radius: var(--rk-radius);
  padding: 0.875rem;
}

.rk-test-matching-grid {
  display: grid;
  gap: 0.75rem;
}

.rk-test-matching-row {
  background: var(--rk-neutral-soft);
  border-radius: var(--rk-radius);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0.875rem;
}

.rk-test-matching-pair {
  min-width: 0;
}

.rk-test-attach-list,
.rk-test-attachment-list,
.rk-test-usage-grid {
  display: grid;
  gap: 0.75rem;
}

.rk-test-attach-option {
  cursor: pointer;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: auto minmax(0, 1fr);
}

.rk-test-attach-option input {
  margin-top: 1.1rem;
}

.rk-test-attach-card,
.rk-test-attachment-card,
.rk-test-usage-item {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  padding: 0.875rem;
}

.rk-test-attach-card,
.rk-test-attachment-card {
  display: block;
}

.rk-test-attachment-card {
  align-items: flex-start;
  display: grid;
  gap: 0.875rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.rk-test-attachment-card-muted {
  background: var(--rk-neutral-soft);
  opacity: 0.78;
}

.rk-test-attempt-actions,
.rk-test-attempt-submit {
  align-items: flex-start;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
}

.rk-test-attempt-actions form {
  margin: 0;
}

.rk-test-attempt-summary-grid,
.rk-test-result-summary {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.rk-test-attempt-question-list,
.rk-test-result-question-list {
  display: grid;
  gap: 1rem;
}

.rk-test-attempt-card,
.rk-test-result-question {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  padding: 1rem;
}

.rk-test-answer-options {
  display: grid;
  gap: 0.625rem;
}

.rk-test-answer-option {
  align-items: flex-start;
  background: var(--rk-neutral-soft);
  border: 1px solid transparent;
  border-radius: var(--rk-radius);
  cursor: pointer;
  display: grid;
  gap: 0.625rem;
  grid-template-columns: auto minmax(0, 1fr);
  padding: 0.75rem;
}

.rk-test-answer-option:focus-within,
.rk-test-answer-option:hover {
  border-color: var(--rk-soft-accent-border);
}

.rk-test-answer-option input {
  margin-top: 0.25rem;
}

.rk-test-numeric-answer {
  max-width: 22rem;
}

.rk-test-matching-select {
  display: grid;
  gap: 0.75rem;
}

.rk-test-matching-select-row {
  align-items: center;
  background: var(--rk-neutral-soft);
  border-radius: var(--rk-radius);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(0, 1fr) minmax(12rem, 0.9fr);
  padding: 0.75rem;
}

.rk-test-matching-left {
  font-weight: 600;
  min-width: 0;
}

.rk-test-attempt-submit {
  justify-content: flex-start;
  margin-top: 1rem;
}

.rk-test-result-summary {
  grid-template-columns: minmax(0, 1.2fr) repeat(3, minmax(0, 0.8fr));
}

.rk-test-result-score,
.rk-test-result-summary-item,
.rk-test-result-answer {
  background: var(--rk-neutral-soft);
  border-radius: var(--rk-radius);
  padding: 0.875rem;
}

.rk-test-result-score-value {
  color: var(--rk-primary);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
}

.rk-attempt-list {
  display: grid;
  gap: 0.75rem;
}

.rk-attempt-row {
  align-items: flex-start;
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  display: grid;
  gap: 0.875rem;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: 0.875rem;
}

.rk-attempt-meta {
  color: var(--rk-text-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.875rem;
  gap: 0.5rem;
}

.rk-attempt-actions {
  align-self: center;
}

.rk-attempt-review-summary {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: minmax(0, 1.1fr) repeat(5, minmax(0, 0.9fr));
}

.rk-attempt-inline {
  background: var(--rk-neutral-soft);
  border-radius: var(--rk-radius);
  padding: 0.75rem;
}

.rk-test-usage-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rk-action-row,
.rk-status-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.rk-action-row {
  justify-content: flex-start;
}

.rk-status-row {
  color: var(--rk-text-muted);
}

.rk-empty-state {
  background: var(--rk-surface-soft);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius);
  color: var(--rk-text-secondary);
  padding: 1rem;
}

.rk-student-list summary {
  cursor: pointer;
  list-style: none;
}

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

.card {
  background-color: var(--rk-surface);
  border-color: var(--rk-border);
  border-radius: var(--rk-radius-lg);
  color: var(--rk-text);
}

.card.border-0 {
  border: 1px solid var(--rk-border) !important;
}

.card.shadow-sm {
  box-shadow: var(--rk-shadow-soft) !important;
}

.card-body {
  min-width: 0;
}

.rk-tutor-photo-frame {
  aspect-ratio: 4 / 3;
  background: var(--rk-neutral-soft);
  border-radius: inherit;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  overflow: hidden;
  width: 100%;
}

.rk-tutor-photo {
  display: block;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  width: 100%;
}

.btn {
  border-radius: 0.75rem;
  font-weight: 500;
  min-height: 2.5rem;
  padding-inline: 1rem;
  white-space: normal;
}

.btn-sm {
  border-radius: 0.65rem;
  min-height: 2.1rem;
  padding-inline: 0.75rem;
}

.btn-lg {
  border-radius: 0.9rem;
}

.btn:focus-visible,
.form-control:focus,
.form-select:focus {
  border-color: var(--rk-primary);
  box-shadow: 0 0 0 0.2rem var(--rk-focus);
}

.btn-primary {
  --bs-btn-bg: var(--rk-primary);
  --bs-btn-border-color: var(--rk-primary);
  --bs-btn-color: var(--rk-surface-elevated);
  --bs-btn-hover-bg: var(--rk-primary-hover);
  --bs-btn-hover-border-color: var(--rk-primary-hover);
  --bs-btn-hover-color: var(--rk-surface-elevated);
  --bs-btn-active-bg: var(--rk-primary-hover);
  --bs-btn-active-border-color: var(--rk-primary-hover);
  --bs-btn-disabled-bg: var(--rk-neutral);
  --bs-btn-disabled-border-color: var(--rk-neutral);
}

.btn-secondary,
.rk-btn-secondary {
  --bs-btn-bg: var(--rk-soft-accent);
  --bs-btn-border-color: var(--rk-soft-accent-border);
  --bs-btn-color: var(--rk-primary);
  --bs-btn-hover-bg: var(--rk-soft-accent-hover);
  --bs-btn-hover-border-color: var(--rk-soft-accent-border);
  --bs-btn-hover-color: var(--rk-primary-hover);
  --bs-btn-active-bg: var(--rk-soft-accent-hover);
  --bs-btn-active-border-color: var(--rk-soft-accent-border);
  --bs-btn-disabled-bg: var(--rk-surface-soft);
  --bs-btn-disabled-border-color: var(--rk-border);
  --bs-btn-disabled-color: var(--rk-text-muted);
}

.btn-outline-primary {
  --bs-btn-color: var(--rk-primary);
  --bs-btn-border-color: var(--rk-primary);
  --bs-btn-hover-bg: var(--rk-soft-accent);
  --bs-btn-hover-border-color: var(--rk-primary);
  --bs-btn-hover-color: var(--rk-primary-hover);
  --bs-btn-active-bg: var(--rk-soft-accent-hover);
  --bs-btn-active-border-color: var(--rk-primary-hover);
  --bs-btn-active-color: var(--rk-primary-hover);
}

.btn-outline-secondary,
.rk-btn-back,
.rk-btn-ghost {
  --bs-btn-color: var(--rk-text-secondary);
  --bs-btn-border-color: var(--rk-border);
  --bs-btn-hover-bg: var(--rk-ghost-hover);
  --bs-btn-hover-border-color: var(--rk-border);
  --bs-btn-hover-color: var(--rk-text);
  --bs-btn-active-bg: var(--rk-ghost-hover);
  --bs-btn-active-border-color: var(--rk-border);
  --bs-btn-active-color: var(--rk-text);
}

.btn-success {
  --bs-btn-bg: var(--rk-success);
  --bs-btn-border-color: var(--rk-success);
  --bs-btn-color: var(--rk-surface-elevated);
  --bs-btn-hover-bg: #276D4A;
  --bs-btn-hover-border-color: #276D4A;
  --bs-btn-hover-color: var(--rk-surface-elevated);
  --bs-btn-active-bg: #276D4A;
  --bs-btn-active-border-color: #276D4A;
}

.btn-warning {
  --bs-btn-bg: var(--rk-secondary);
  --bs-btn-border-color: var(--rk-secondary);
  --bs-btn-color: var(--rk-text);
  --bs-btn-hover-bg: #C49235;
  --bs-btn-hover-border-color: #C49235;
  --bs-btn-hover-color: var(--rk-text);
  --bs-btn-active-bg: #C49235;
  --bs-btn-active-border-color: #C49235;
}

.btn-outline-warning {
  --bs-btn-color: var(--rk-status-needs-revision-text);
  --bs-btn-border-color: var(--rk-status-needs-revision-border);
  --bs-btn-hover-bg: var(--rk-status-needs-revision-bg);
  --bs-btn-hover-border-color: var(--rk-status-needs-revision-border);
  --bs-btn-hover-color: var(--rk-status-needs-revision-text);
  --bs-btn-active-bg: var(--rk-status-needs-revision-bg);
  --bs-btn-active-border-color: var(--rk-status-needs-revision-border);
  --bs-btn-active-color: var(--rk-status-needs-revision-text);
}

.btn-danger {
  --bs-btn-bg: var(--rk-danger);
  --bs-btn-border-color: var(--rk-danger);
  --bs-btn-color: var(--rk-surface-elevated);
  --bs-btn-hover-bg: var(--rk-danger-hover);
  --bs-btn-hover-border-color: var(--rk-danger-hover);
  --bs-btn-hover-color: var(--rk-surface-elevated);
  --bs-btn-active-bg: var(--rk-danger-hover);
  --bs-btn-active-border-color: var(--rk-danger-hover);
}

.btn-outline-danger {
  --bs-btn-color: var(--rk-danger);
  --bs-btn-border-color: var(--rk-danger);
  --bs-btn-hover-bg: var(--rk-danger);
  --bs-btn-hover-border-color: var(--rk-danger);
  --bs-btn-hover-color: var(--rk-surface-elevated);
  --bs-btn-active-bg: var(--rk-danger-hover);
  --bs-btn-active-border-color: var(--rk-danger-hover);
}

.badge {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 999px;
  display: inline-flex;
  font-weight: 600;
  gap: 0.25rem;
  letter-spacing: 0.01em;
  line-height: 1.2;
  padding: 0.38em 0.68em;
  text-align: left;
  white-space: normal;
}

.alert {
  border-radius: var(--rk-radius);
  border-color: var(--rk-border);
}

.text-muted {
  color: var(--rk-text-muted) !important;
}

.text-secondary {
  color: var(--rk-text-secondary) !important;
}

.text-bg-primary {
  background-color: var(--rk-primary) !important;
  color: var(--rk-surface-elevated) !important;
}

.badge.text-bg-primary {
  background-color: var(--rk-status-assigned-bg) !important;
  border-color: var(--rk-status-assigned-border) !important;
  color: var(--rk-status-assigned-text) !important;
}

.badge.text-bg-secondary {
  background-color: var(--rk-status-closed-bg) !important;
  border-color: var(--rk-status-closed-border) !important;
  color: var(--rk-status-closed-text) !important;
}

.badge.text-bg-success {
  background-color: var(--rk-status-checked-bg) !important;
  border-color: var(--rk-status-checked-border) !important;
  color: var(--rk-status-checked-text) !important;
}

.badge.text-bg-warning {
  background-color: var(--rk-status-needs-revision-bg) !important;
  border-color: var(--rk-status-needs-revision-border) !important;
  color: var(--rk-status-needs-revision-text) !important;
}

.badge.text-bg-danger {
  background-color: #FDECEA !important;
  border-color: #F4B7B2 !important;
  color: var(--rk-danger) !important;
}

.badge.text-bg-info {
  background-color: var(--rk-status-submitted-bg) !important;
  border-color: var(--rk-status-submitted-border) !important;
  color: var(--rk-status-submitted-text) !important;
}

.bg-primary {
  background-color: var(--rk-primary) !important;
}

.bg-secondary {
  background-color: var(--rk-neutral) !important;
}

.bg-success {
  background-color: var(--rk-success) !important;
}

.bg-warning {
  background-color: var(--rk-secondary) !important;
}

.bg-danger {
  background-color: var(--rk-danger) !important;
}

.bg-info {
  background-color: var(--rk-info) !important;
}

.rk-status-badge {
  border-style: solid;
}

.rk-status-assigned {
  background-color: var(--rk-status-assigned-bg) !important;
  border-color: var(--rk-status-assigned-border) !important;
  color: var(--rk-status-assigned-text) !important;
}

.badge.rk-status-assigned {
  background-color: var(--rk-status-assigned-bg) !important;
  border-color: var(--rk-status-assigned-border) !important;
  color: var(--rk-status-assigned-text) !important;
}

.rk-status-submitted {
  background-color: var(--rk-status-submitted-bg) !important;
  border-color: var(--rk-status-submitted-border) !important;
  color: var(--rk-status-submitted-text) !important;
}

.badge.rk-status-submitted {
  background-color: var(--rk-status-submitted-bg) !important;
  border-color: var(--rk-status-submitted-border) !important;
  color: var(--rk-status-submitted-text) !important;
}

.rk-status-needs_revision {
  background-color: var(--rk-status-needs-revision-bg) !important;
  border-color: var(--rk-status-needs-revision-border) !important;
  color: var(--rk-status-needs-revision-text) !important;
}

.badge.rk-status-needs_revision {
  background-color: var(--rk-status-needs-revision-bg) !important;
  border-color: var(--rk-status-needs-revision-border) !important;
  color: var(--rk-status-needs-revision-text) !important;
}

.rk-status-checked {
  background-color: var(--rk-status-checked-bg) !important;
  border-color: var(--rk-status-checked-border) !important;
  color: var(--rk-status-checked-text) !important;
}

.badge.rk-status-checked {
  background-color: var(--rk-status-checked-bg) !important;
  border-color: var(--rk-status-checked-border) !important;
  color: var(--rk-status-checked-text) !important;
}

.rk-status-closed {
  background-color: var(--rk-status-closed-bg) !important;
  border-color: var(--rk-status-closed-border) !important;
  color: var(--rk-status-closed-text) !important;
}

.badge.rk-status-closed {
  background-color: var(--rk-status-closed-bg) !important;
  border-color: var(--rk-status-closed-border) !important;
  color: var(--rk-status-closed-text) !important;
}

.navbar,
header.bg-white {
  background-color: var(--rk-surface-elevated) !important;
}

header.border-bottom {
  border-color: var(--rk-border) !important;
}

.rk-site-header-inner {
  gap: 1rem;
  min-width: 0;
}

.rk-site-brand,
.rk-site-brand-link,
.rk-site-nav {
  min-width: 0;
  max-width: 100%;
}

.rk-site-brand-link {
  line-height: 1.25;
}

.rk-site-brand-title {
  white-space: nowrap;
}

.rk-site-brand-subtitle {
  overflow-wrap: anywhere;
}

nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

.rk-site-nav {
  margin-left: auto;
}

header .container > div:first-child,
header nav,
header nav form {
  min-width: 0;
}

header a {
  max-width: 100%;
  overflow-wrap: anywhere;
}

header nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.1rem;
}

.rk-auth-nav-link {
  border-radius: 0.75rem;
  color: var(--rk-primary);
  font-weight: 600;
  line-height: 1.25;
  padding: 0.35rem 0.5rem;
}

.rk-auth-nav-link:hover,
.rk-auth-nav-link:focus-visible {
  background: var(--rk-primary-soft);
  color: var(--rk-primary-hover);
}

.rk-nav-island {
  align-items: center;
  background: var(--rk-surface);
  border: 1px solid var(--rk-border);
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(31, 41, 51, 0.05);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  max-width: 100%;
  padding: 0.375rem;
}

.rk-nav-link,
.rk-nav-login {
  align-items: center;
  border-radius: 999px;
  display: inline-flex;
  justify-content: center;
  line-height: 1.2;
  max-width: 100%;
  min-height: 2.5rem;
  text-decoration: none;
  transition:
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease;
}

.rk-nav-link {
  background: transparent;
  border: 1px solid transparent;
  color: var(--rk-primary);
  font-weight: 500;
  padding: 0.45rem 0.875rem;
}

.rk-nav-link:hover,
.rk-nav-link:focus-visible {
  background: var(--rk-primary-soft);
  border-color: var(--rk-soft-accent-border);
  color: var(--rk-primary-hover);
}

.rk-nav-link-warm:hover,
.rk-nav-link-warm:focus-visible {
  background: var(--rk-warning-soft);
  border-color: var(--rk-warning-border);
  color: var(--rk-status-needs-revision-text);
}

.rk-nav-link-active {
  background: var(--rk-primary);
  border-color: var(--rk-primary);
  color: var(--rk-surface-elevated);
  font-weight: 600;
}

.rk-nav-link-active:hover,
.rk-nav-link-active:focus-visible {
  background: var(--rk-primary);
  border-color: var(--rk-primary);
  color: var(--rk-surface-elevated);
}

.rk-nav-login {
  background: var(--rk-surface-elevated);
  border: 1px solid var(--rk-primary);
  box-shadow: 0 4px 12px rgba(47, 111, 115, 0.08);
  color: var(--rk-primary);
  font-weight: 600;
  padding: 0.5rem 1.125rem;
}

.rk-nav-login:hover,
.rk-nav-login:focus-visible,
.rk-nav-login-active {
  background: var(--rk-primary);
  border-color: var(--rk-primary);
  color: var(--rk-surface-elevated);
}

.rk-nav-link:focus-visible,
.rk-nav-login:focus-visible {
  outline: none;
  box-shadow: 0 0 0 0.2rem var(--rk-focus);
}

header nav form {
  margin-bottom: 0;
}

header nav form.rk-logout-form {
  min-width: 0;
}

header nav form.rk-logout-form.d-inline {
  display: inline-flex !important;
}

.rk-logout-button {
  justify-content: center;
  max-width: 100%;
}

.table-responsive {
  border-radius: var(--rk-radius);
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table {
  color: var(--rk-text);
}

.table-responsive .table {
  min-width: 42rem;
}

.table th {
  color: var(--rk-muted);
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
}

.table td {
  vertical-align: middle;
}

.form-control,
.form-select,
textarea {
  background-color: var(--rk-surface-elevated);
  border-color: var(--rk-border);
  color: var(--rk-text);
  max-width: 100%;
  min-width: 0;
}

.form-control::placeholder {
  color: var(--rk-text-muted);
}

details > summary {
  border-radius: var(--rk-radius);
  cursor: pointer;
  min-height: 2.75rem;
  overflow-wrap: anywhere;
}

@media (max-width: 768px) {
  .rk-site-header-inner {
    align-items: flex-start !important;
    flex-direction: column;
    gap: 0.75rem;
  }

  .rk-site-brand,
  .rk-site-brand-link,
  .rk-site-nav {
    width: 100%;
  }

  .rk-site-nav {
    gap: 0.5rem;
    justify-content: flex-start;
    margin-left: 0;
  }

  .rk-site-nav a,
  .rk-site-nav form,
  .rk-site-nav .btn {
    flex: 1 1 9rem;
  }

  .rk-site-nav .me-3 {
    margin-right: 0 !important;
  }

  .rk-site-nav a,
  .rk-site-nav .btn {
    justify-content: center;
    min-height: 2.5rem;
    text-align: center;
  }

  .rk-site-nav .rk-logout-form {
    display: flex !important;
  }

  .rk-site-nav .rk-logout-button {
    width: 100%;
  }

  .rk-nav-island {
    border-radius: 1.5rem;
    flex: 1 1 100%;
    justify-content: center;
  }

  .rk-nav-island .rk-nav-link {
    flex: 1 1 7rem;
  }

  .rk-nav-login {
    flex: 1 1 10rem;
  }

  main.container {
    padding-left: 0.875rem;
    padding-right: 0.875rem;
  }

  .row {
    --bs-gutter-x: 1rem;
  }

  .rk-action-row,
  .rk-status-row,
  .rk-course-actions,
  .rk-course-meta,
  .rk-course-hero-meta {
    align-items: flex-start;
  }

  .rk-action-row .btn,
  .rk-action-row form,
  .rk-action-row form .btn,
  .rk-course-actions .btn,
  .rk-tutor-quick-actions .btn {
    max-width: 100%;
  }

  .rk-course-workspace-grid,
  .rk-test-detail-grid,
  .rk-test-question-card,
  .rk-test-matching-row,
  .rk-test-matching-select-row,
  .rk-test-attachment-card,
  .rk-attempt-row {
    grid-template-columns: 1fr;
  }

  .rk-course-detail-summary,
  .rk-course-directions,
  .rk-course-class-grid,
  .rk-home-subject-grid,
  .rk-home-steps,
  .rk-home-parent-block,
  .rk-test-settings-grid,
  .rk-test-type-hint,
  .rk-test-option-grid,
  .rk-test-attempt-summary-grid,
  .rk-test-result-summary,
  .rk-attempt-review-summary,
  .rk-test-usage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .rk-course-page .rk-course-detail-summary,
  .rk-course-page .rk-course-directions,
  .rk-course-page .rk-course-class-grid,
  .rk-course-page .rk-student-course-summary,
  .rk-course-page .rk-course-topic-row,
  .rk-topic-page .rk-topic-context-grid,
  .rk-test-page .rk-test-workflow-steps,
  .rk-test-page .rk-test-card,
  .rk-test-page .rk-test-version-item,
  .rk-test-page .rk-test-settings-grid,
  .rk-test-page .rk-test-type-hint,
  .rk-test-page .rk-test-option-grid,
  .rk-test-page .rk-test-attempt-summary-grid,
  .rk-test-page .rk-test-result-summary,
  .rk-test-page .rk-test-usage-grid,
  .rk-test-review-page .rk-attempt-review-summary {
    grid-template-columns: 1fr;
  }

  .rk-test-page .rk-test-card,
  .rk-test-page .rk-test-version-item,
  .rk-test-page .rk-test-question-card,
  .rk-test-review-page .rk-attempt-row {
    align-items: stretch;
  }

  .rk-test-page .rk-test-card-actions,
  .rk-test-page .rk-test-question-actions,
  .rk-test-review-page .rk-attempt-actions {
    align-items: stretch;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    width: 100%;
  }

  .rk-test-page .rk-test-card-actions .btn,
  .rk-test-page .rk-test-card-actions form,
  .rk-test-page .rk-test-card-actions form .btn,
  .rk-test-page .rk-test-question-actions .btn,
  .rk-test-page .rk-test-question-actions form,
  .rk-test-page .rk-test-question-actions form .btn,
  .rk-test-review-page .rk-attempt-actions .btn {
    width: 100%;
  }

  .rk-topic-page .rk-course-material-item,
  .rk-admin-material-page .rk-material-item,
  .rk-admin-material-page .rk-material-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .rk-topic-page .rk-course-material-item .btn,
  .rk-admin-material-page .rk-material-actions .btn,
  .rk-admin-material-page .rk-material-actions form,
  .rk-admin-material-page .rk-material-actions form .btn {
    width: 100%;
  }

  .rk-admin-dashboard-page .card-body,
  .rk-admin-material-page .rk-card,
  .rk-admin-material-page .rk-card-compact {
    padding: 1rem !important;
  }

  .rk-admin-dashboard-page .row > [class*="col-"],
  .rk-admin-dashboard-page form .row > [class*="col-"],
  .rk-admin-material-page form .row > [class*="col-"] {
    flex: 0 0 100%;
    max-width: 100%;
    width: 100%;
  }

  .rk-admin-dashboard-page .rk-admin-quick-actions .row > [class*="col-"] {
    flex: 0 0 50%;
    max-width: 50%;
    width: 50%;
  }

  .rk-admin-dashboard-page .rk-admin-quick-actions .row > [class*="col-"]:last-child {
    flex-basis: 100%;
    max-width: 100%;
    width: 100%;
  }

  .rk-tutor-workspace {
    gap: 1rem;
  }

  .rk-tutor-workspace > .row {
    --bs-gutter-y: 1rem;
  }

  .rk-tutor-workspace .col-12.col-lg-8,
  .rk-tutor-workspace aside.col-12.col-lg-4 {
    flex: 0 0 100%;
    max-width: 100%;
    width: 100%;
  }

  .rk-tutor-lesson-form-card .row {
    --bs-gutter-x: 0.75rem;
    --bs-gutter-y: 0.85rem;
  }

  .rk-tutor-lesson-form-card .row > [class*="col-"] {
    flex: 0 0 100%;
    max-width: 100%;
    width: 100%;
  }

  .rk-tutor-calendar-card {
    padding: 0.875rem;
  }

  .rk-tutor-calendar-tabs {
    gap: 0.3rem;
  }

  .rk-tutor-calendar-tab {
    align-items: center;
    display: flex;
    font-size: 0.8rem;
    justify-content: center;
    min-height: 2.35rem;
    padding: 0.42rem 0.25rem;
  }

  .rk-tutor-calendar-nav {
    grid-template-columns: minmax(2.25rem, auto) minmax(0, 1fr) minmax(2.25rem, auto);
  }

  .rk-tutor-calendar-week-list,
  .rk-tutor-calendar-lesson-list,
  .rk-tutor-calendar-month-list,
  .rk-tutor-calendar-month-lessons {
    gap: 0.45rem;
  }

  .rk-tutor-calendar-day,
  .rk-tutor-calendar-month-row {
    padding: 0.55rem;
  }

  .rk-tutor-test-review-item {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .rk-tutor-test-review-score {
    justify-self: start;
  }

  .rk-tutor-test-review-action {
    justify-content: flex-start;
  }

  .rk-tutor-student-details {
    padding: 0.875rem;
  }

  .rk-tutor-student-details .btn,
  .rk-tutor-test-review-action .btn,
  .rk-tutor-secondary-actions .rk-action-row .btn {
    width: 100%;
  }

  .rk-student-dashboard .rk-dashboard-header {
    align-items: flex-start;
    grid-template-columns: minmax(0, 1fr);
  }

  .rk-student-dashboard .rk-dashboard-visual {
    justify-self: start;
    max-width: 16rem;
  }

  .rk-student-dashboard .rk-homework-row,
  .rk-student-dashboard .rk-test-dashboard-item,
  .rk-student-dashboard .rk-event-item {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .rk-student-dashboard .rk-homework-row {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .rk-student-dashboard .rk-homework-row-side {
    align-items: flex-start;
    grid-column: 1 / -1;
    justify-items: start;
  }

  .rk-student-dashboard .rk-test-dashboard-action,
  .rk-student-dashboard .rk-test-dashboard-action form {
    align-items: stretch;
    flex-direction: column;
    justify-content: flex-start;
    width: 100%;
  }

  .rk-student-dashboard .rk-test-dashboard-action .btn {
    width: 100%;
  }

  .rk-student-dashboard .rk-event-date {
    justify-self: flex-start;
  }

  .rk-student-homework-page .rk-page-header,
  .rk-student-lesson-history .rk-lesson-history-header {
    align-items: stretch !important;
  }

  .rk-student-homework-page .rk-page-header .btn,
  .rk-student-lesson-history .rk-lesson-history-header .btn {
    align-self: flex-start;
  }

  .rk-student-homework-page .rk-test-attachment-card {
    grid-template-columns: 1fr;
  }

  .rk-student-homework-page .rk-test-attempt-actions,
  .rk-student-homework-page .rk-test-attempt-actions form {
    align-items: stretch;
    flex-direction: column;
    width: 100%;
  }

  .rk-student-homework-page .rk-test-attempt-actions .btn {
    width: 100%;
  }

  .rk-student-lesson-history .rk-lesson-history-actions {
    align-items: stretch;
  }

  .rk-student-lesson-history .rk-lesson-history-homework-action,
  .rk-student-lesson-history .rk-lesson-history-homework-action .btn {
    width: 100%;
  }

  .table-responsive {
    max-width: 100%;
  }
}

@media (max-width: 767.98px) {
  body {
    line-height: 1.55;
  }

  h1,
  .h1 {
    font-size: 1.65rem;
  }

  h2,
  .h2 {
    font-size: 1.4rem;
  }

  .lead {
    font-size: 1.05rem;
  }

  header .container {
    align-items: flex-start !important;
    flex-direction: column;
    gap: 0.75rem;
  }

  header a {
    line-height: 1.35;
  }

  header nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    width: 100%;
  }

  .rk-nav-island {
    border-radius: 1.5rem;
    flex: 1 1 100%;
    justify-content: center;
  }

  header nav a,
  header nav form,
  header nav .btn {
    flex: 1 1 9rem;
  }

  .rk-nav-island .rk-nav-link {
    flex: 1 1 7rem;
  }

  .rk-nav-login {
    flex: 1 1 10rem;
  }

  header nav a {
    justify-content: center;
    min-height: 2.5rem;
  }

  header nav .btn {
    justify-content: center;
  }

  header nav .me-3 {
    margin-right: 0 !important;
  }

  main.container {
    padding-left: 0.875rem;
    padding-right: 0.875rem;
  }

  .row {
    --bs-gutter-x: 1rem;
  }

  .rk-page {
    gap: 1rem;
  }

  .rk-hero-with-visual,
  .rk-hero-with-visual-compact {
    grid-template-columns: 1fr;
  }

  .rk-dashboard-header {
    grid-template-columns: minmax(0, 1fr) minmax(10rem, 14rem);
  }

  .rk-dashboard-visual {
    max-height: 180px;
    max-width: 14rem;
  }

  .rk-hero-visual {
    max-height: 220px;
  }

  .rk-course-hero .rk-hero-visual {
    max-height: 200px;
  }

  .card-body {
    padding: 1rem !important;
  }

  .rk-card,
  .rk-card-primary,
  .rk-card-compact,
  .rk-empty-state {
    padding: 1rem;
  }

  .rk-tutor-student-details,
  .rk-course-future-block {
    padding: 0.875rem;
  }

  .rk-island::before {
    bottom: 0.75rem;
    top: 0.75rem;
    width: 3px;
  }

  .rk-homework-card::before {
    bottom: 0.75rem;
    top: 0.75rem;
    width: 3px;
  }

  .rk-student-profile-card::before {
    bottom: 0.75rem;
    top: 0.75rem;
    width: 3px;
  }

  .rk-course-card::before {
    bottom: 0.75rem;
    top: 0.75rem;
    width: 3px;
  }

  .rk-page-header,
  .rk-section {
    margin-bottom: 1rem;
  }

  .rk-action-row {
    align-items: stretch;
    flex-direction: column;
  }

  .rk-action-row .btn,
  .rk-action-row form,
  .rk-action-row form .btn {
    width: 100%;
  }

  .rk-course-actions,
  .rk-course-meta,
  .rk-course-hero-meta,
  .rk-status-row {
    align-items: flex-start;
  }

  .rk-course-program-header,
  .rk-course-section-card {
    padding: 1rem;
  }

  .rk-course-directions,
  .rk-course-class-grid,
  .rk-course-detail-summary,
  .rk-course-workspace-grid,
  .rk-course-topic-row,
  .rk-home-subject-grid,
  .rk-home-steps,
  .rk-home-parent-block,
  .rk-student-course-summary {
    grid-template-columns: 1fr;
  }

  .rk-home-final-actions {
    flex: 1 1 100%;
  }

  .rk-test-card,
  .rk-test-version-item,
  .rk-test-question-card,
  .rk-test-workflow-steps,
  .rk-test-settings-grid,
  .rk-test-detail-grid,
  .rk-test-type-hint,
  .rk-test-option-grid,
  .rk-test-matching-row,
  .rk-test-matching-select-row,
  .rk-test-attachment-card,
  .rk-test-attempt-summary-grid,
  .rk-test-result-summary,
  .rk-attempt-row,
  .rk-attempt-review-summary,
  .rk-test-usage-grid,
  .rk-test-dashboard-item,
  .rk-tutor-test-review-item,
  .rk-event-item,
  .rk-homework-row,
  .rk-archive-row {
    grid-template-columns: 1fr;
  }

  .rk-homework-row {
    align-items: flex-start;
    grid-template-columns: auto minmax(0, 1fr);
  }

  .rk-homework-status-dot {
    grid-row: 1;
  }

  .rk-homework-row-side {
    align-items: flex-start;
    grid-column: 1 / -1;
    justify-items: start;
  }

  .rk-homework-action {
    white-space: normal;
  }

  .rk-test-attach-option {
    grid-template-columns: minmax(0, 1fr);
  }

  .rk-test-attach-option input {
    margin-top: 0;
  }

  .rk-test-attachment-card .rk-action-row,
  .rk-test-attachment-card .rk-action-row .btn {
    width: 100%;
  }

  .rk-test-attempt-actions,
  .rk-test-attempt-actions .btn,
  .rk-test-attempt-actions form,
  .rk-test-attempt-actions form .btn,
  .rk-test-dashboard-action,
  .rk-test-dashboard-action .btn,
  .rk-test-dashboard-action form,
  .rk-test-dashboard-action form .btn,
  .rk-tutor-test-review-action,
  .rk-tutor-test-review-action .btn,
  .rk-test-attempt-submit,
  .rk-test-attempt-submit .btn {
    width: 100%;
  }

  .rk-test-attempt-actions,
  .rk-test-dashboard-action,
  .rk-tutor-test-review-action,
  .rk-test-attempt-submit {
    align-items: stretch;
    flex-direction: column;
  }

  .rk-attempt-actions,
  .rk-attempt-actions .btn {
    width: 100%;
  }

  .rk-test-question-actions {
    align-items: stretch;
    justify-content: flex-start;
  }

  .rk-test-question-actions .btn,
  .rk-test-question-actions form,
  .rk-test-question-actions form .btn {
    width: 100%;
  }

  .rk-test-card-actions {
    align-self: stretch;
  }

  .rk-test-card-actions .btn {
    width: 100%;
  }

  .rk-test-settings-list div {
    gap: 0.25rem;
    grid-template-columns: 1fr;
  }

  .rk-archive-row {
    align-items: stretch;
    flex-direction: column;
  }

  .rk-lesson-file-row {
    align-items: stretch;
    flex-direction: column;
  }

  .rk-event-date {
    justify-self: flex-start;
  }

  .rk-course-direction-card {
    flex-direction: column;
  }

  .rk-course-direction-icon {
    flex-basis: auto;
  }

  .rk-course-section-heading {
    flex-direction: column;
    gap: 0.65rem;
  }

  .rk-course-topic-count {
    align-self: flex-start;
  }

  .rk-course-topic-item {
    border-radius: 0.75rem;
    padding: 0.6rem 0.7rem;
  }

  .rk-topic-breadcrumb {
    font-size: 0.8rem;
  }

  .rk-topic-context-card,
  .rk-topic-description {
    padding: 1rem;
  }

  .rk-material-item,
  .rk-course-material-item,
  .rk-material-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .rk-material-actions .btn,
  .rk-material-actions form,
  .rk-material-actions form .btn {
    width: 100%;
  }

  .rk-course-actions .btn,
  .rk-tutor-quick-actions .btn {
    width: 100%;
  }

  details > summary {
    align-items: center;
    display: flex;
  }

  .d-flex.justify-content-center {
    flex-wrap: wrap;
  }

  .d-flex.justify-content-center .btn {
    max-width: 100%;
  }

  .btn {
    min-height: 2.75rem;
    max-width: 100%;
  }

  .btn-sm {
    min-height: 2.5rem;
  }

  .table-responsive {
    margin-left: -0.25rem;
    margin-right: -0.25rem;
    padding-inline: 0.25rem;
  }

  .table-responsive .table {
    min-width: 36rem;
  }

  .form-control,
  .form-select,
  textarea {
    width: 100%;
  }

  .form-label {
    margin-bottom: 0.35rem;
  }

  footer {
    padding-left: 1rem;
    padding-right: 1rem;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 575.98px) {
  header.bg-white {
    padding: 0.875rem !important;
  }

  .rk-site-header {
    margin-bottom: 1rem !important;
  }

  .rk-site-brand-link {
    align-items: flex-start !important;
  }

  .rk-site-brand-title {
    font-size: 0.98rem;
  }

  .rk-site-nav {
    gap: 0.45rem;
  }

  .rk-nav-island {
    align-items: stretch;
    gap: 0.2rem;
    padding: 0.25rem;
    width: 100%;
  }

  .rk-nav-island .rk-nav-link {
    flex: 1 1 calc(50% - 0.25rem);
    min-height: 2.35rem;
    padding: 0.4rem 0.55rem;
  }

  .rk-nav-login {
    flex-basis: 100%;
    width: 100%;
  }

  main.container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .rk-card,
  .rk-card-primary,
  .rk-card-compact,
  .rk-empty-state {
    border-radius: var(--rk-radius);
    padding: 0.875rem;
  }

  .rk-page-header {
    margin-bottom: 0.875rem;
  }

  .rk-hero-visual {
    max-height: 180px;
  }

  .rk-dashboard-header {
    grid-template-columns: 1fr;
  }

  .rk-dashboard-visual {
    display: none;
  }

  .rk-section {
    margin-bottom: 0.875rem;
  }

  .rk-tutor-student-details,
  .rk-course-future-block {
    padding: 0.75rem;
  }

  .rk-tutor-workspace {
    gap: 0.85rem;
  }

  .rk-tutor-workspace > .row {
    --bs-gutter-x: 0.75rem;
    --bs-gutter-y: 0.85rem;
  }

  .rk-tutor-lesson-form-card .row {
    --bs-gutter-y: 0.75rem;
  }

  .rk-tutor-lesson-form-card .form-label {
    font-size: 0.85rem;
  }

  .rk-tutor-lesson-form-card .btn[type="submit"] {
    width: 100%;
  }

  .rk-tutor-calendar-tabs {
    gap: 0.25rem;
  }

  .rk-tutor-calendar-tab {
    font-size: 0.78rem;
    padding: 0.38rem 0.2rem;
  }

  .rk-tutor-calendar-nav {
    gap: 0.35rem;
  }

  .rk-tutor-calendar-nav-btn {
    min-width: 2.1rem;
    padding-inline: 0.55rem;
  }

  .rk-tutor-calendar-today {
    padding-inline: 0.55rem;
  }

  .rk-tutor-calendar-lesson {
    gap: 0.2rem;
    grid-template-columns: 1fr;
  }

  .rk-tutor-calendar-time {
    white-space: normal;
  }

  .rk-tutor-calendar-status {
    grid-column: 1;
  }

  .rk-tutor-calendar-month-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .rk-tutor-calendar-month-date {
    align-items: center;
    flex-direction: row;
    justify-content: flex-start;
    min-width: 0;
    width: fit-content;
  }

  .rk-tutor-test-review-score {
    border-radius: 0.75rem;
    justify-self: stretch;
    min-height: 2.35rem;
  }

  .rk-tutor-test-review-action .btn {
    width: 100%;
  }

  .rk-tutor-student-row summary .badge {
    max-width: 100%;
  }

  .rk-student-dashboard .rk-homework-row,
  .rk-student-dashboard .rk-test-dashboard-item,
  .rk-student-homework-page .rk-current-answer,
  .rk-student-homework-page .rk-homework-review-note,
  .rk-student-homework-page .rk-file-first-box,
  .rk-student-homework-page .rk-homework-link-fallback {
    padding: 0.75rem;
  }

  .rk-student-dashboard .rk-homework-action {
    border-radius: 0.75rem;
    justify-self: stretch;
    width: 100%;
  }

  .rk-student-homework-page .rk-page-header .btn,
  .rk-student-homework-page form > .btn[type="submit"] {
    width: 100%;
  }

  .rk-student-lesson-history .rk-lesson-history-actions {
    flex-direction: column;
  }

  .rk-student-lesson-history .rk-lesson-file-row .btn,
  .rk-student-lesson-history .rk-lesson-history-actions .btn,
  .rk-student-lesson-history .rk-lesson-history-homework-action .btn,
  .rk-student-lesson-history .rk-lesson-history-header .btn {
    width: 100%;
  }

  .rk-course-page .rk-course-topic-row,
  .rk-test-page .rk-test-option-row,
  .rk-test-page .rk-test-matching-row,
  .rk-test-page .rk-test-setting,
  .rk-test-review-page .rk-test-result-summary-item,
  .rk-test-review-page .rk-attempt-inline,
  .rk-admin-dashboard-page .card-body,
  .rk-admin-material-page .rk-material-item {
    padding: 0.75rem;
  }

  .rk-test-page .rk-test-attach-option {
    gap: 0.5rem;
  }

  .rk-admin-dashboard-page .table-responsive,
  .rk-admin-material-page .table-responsive {
    margin-left: -0.125rem;
    margin-right: -0.125rem;
    padding-inline: 0.125rem;
  }

  .rk-status-row,
  .rk-course-meta,
  .rk-course-hero-meta {
    gap: 0.4rem;
  }

  .card {
    border-radius: var(--rk-radius);
  }

  .badge {
    max-width: 100%;
    padding: 0.34em 0.58em;
  }
}