/* Final product pass: one quiet visual language for the platform and institution workspaces. */
:root {
  --cos-focus: #087f78;
  --cos-focus-soft: #dff4ef;
  --cos-canvas: #f1f3f2;
}

.courseos-app {
  --cos-radius: 6px;
  background: #f5f3ee;
  color: #202523;
}

.courseos-app button,
.courseos-app input,
.courseos-app select,
.courseos-app textarea {
  font-family: inherit;
}

.courseos-app button:focus-visible,
.courseos-app input:focus-visible,
.courseos-app select:focus-visible,
.courseos-app textarea:focus-visible,
.courseos-app a:focus-visible {
  outline: 3px solid var(--cos-focus-soft);
  outline-offset: 2px;
}

.courseos-app .content,
.courseos-app .institution-content {
  isolation: isolate;
}

/* Keep the application shell inside the browser viewport. Individual data
   surfaces may scroll, but the navigation and page frame must never drift. */
html {
  overflow-x: hidden;
}

body.courseos-app {
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
}

.courseos-app .app,
.courseos-app .main,
.courseos-app .content,
.courseos-app .view,
.courseos-app #org {
  min-width: 0;
  max-width: 100%;
}

.courseos-app .app {
  width: 100%;
  grid-template-columns: minmax(0, 244px) minmax(0, 1fr);
}

.courseos-app .sidebar {
  min-width: 0;
  overflow-x: hidden;
}

.courseos-app .view.active,
.courseos-app .inst-view.active {
  animation: courseos-view-in 180ms ease-out both;
}

@keyframes courseos-view-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

.courseos-app .headline,
.courseos-app .inst-page-head {
  gap: 22px;
}

.courseos-app .headline h1,
.courseos-app .inst-page-head h2 {
  text-wrap: balance;
}

.courseos-app .stats,
.courseos-app .inst-metrics,
.courseos-app .homework-summary {
  align-items: stretch;
}

.courseos-app .stat,
.courseos-app .panel,
.courseos-app .course-card,
.courseos-app .inst-panel,
.courseos-app .overview-subject,
.courseos-app .product-large,
.courseos-app .training-card,
.courseos-app .prep-board,
.courseos-app .homework-list {
  overflow: hidden;
}

.courseos-app .course-card,
.courseos-app .overview-subject,
.courseos-app .product-large,
.courseos-app .inst-panel,
.courseos-app .panel {
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.courseos-app .course-card:hover,
.courseos-app .overview-subject:hover,
.courseos-app .product-large:hover {
  border-color: #b8d9d0;
}

.courseos-app .cover,
.courseos-app .entity-cover,
.courseos-app .subsubject-cover,
.courseos-app .level-cover,
.courseos-app .institution-explorer-cover,
.courseos-app .institution-lesson-cover,
.courseos-app .institution-unit-cover {
  min-height: 145px;
  background-repeat: no-repeat;
}

.courseos-app .course-card .cover h3,
.courseos-app .product-large h3,
.courseos-app .overview-subject h3 {
  text-wrap: balance;
}

.courseos-app .product-large.art {
  background-image: linear-gradient(90deg, rgba(71, 42, 34, .72), rgba(71, 42, 34, .08)), url("site-assets/course-art/derived/creative-paint-banner.jpg");
  background-size: cover;
  background-position: center;
}

.courseos-app .product-large.music {
  background-image: linear-gradient(90deg, rgba(32, 48, 104, .74), rgba(32, 48, 104, .08)), url("site-assets/course-art/creative-art-03.jpg");
  background-size: cover;
  background-position: center;
}

.courseos-app .product-large.code {
  background-image: linear-gradient(90deg, rgba(22, 75, 70, .74), rgba(22, 75, 70, .08)), url("site-assets/course-art/creative-art-05.jpg");
  background-size: cover;
  background-position: center;
}

.courseos-app .product-large > * {
  position: relative;
  z-index: 1;
}

.courseos-app .institution-shell.visible {
  background: #f5f3ee;
}

/* The institution preview is a fixed workspace above the platform shell. Keep
   its main column opaque so the platform page can never bleed through it. */
.courseos-app .institution-main {
  background: var(--cos-paper);
}

.courseos-app .institution-nav,
.courseos-app .nav button,
.courseos-app .product-tabs button,
.courseos-app .level-tab,
.courseos-app .material-filter button {
  min-height: 38px;
}

.courseos-app .institution-nav i {
  min-width: 18px;
  text-align: center;
}

.courseos-app .institution-search-card,
.courseos-app .material-card,
.courseos-app .training-card,
.courseos-app .schedule-card,
.courseos-app .prep-item,
.courseos-app .team-row,
.courseos-app .homework-row {
  min-width: 0;
}

/* AI Operations keeps the same paper / ink / teal hierarchy as the workspaces. */
.courseos-app #aiOps,
.courseos-app #instAiOps {
  color: #202523;
}

.courseos-app .agent-workbench {
  border-radius: 6px;
  border-color: #dedbd2;
  box-shadow: 0 12px 30px rgba(42, 48, 43, .07);
}

.courseos-app .agent-rail,
.courseos-app .agent-context {
  background: #fbfaf6;
}

.courseos-app .agent-session.active,
.courseos-app .agent-product-materials,
.courseos-app .agent-welcome {
  background: #e4f0eb;
  border-color: #b8d9d0;
}

.courseos-app .agent-send,
.courseos-app .agent-material-tools button.primary {
  background: #202523;
  border-color: #202523;
}

.courseos-app .agent-send:hover,
.courseos-app .agent-material-tools button.primary:hover {
  background: #16766d;
  border-color: #16766d;
}

/* The live classroom is an operating surface, not a separate dark product. */
.courseos-workbench {
  --wb-paper: #f5f3ee;
  --wb-canvas: #ebe9e2;
  --wb-ink: #202523;
  --wb-muted: #78817c;
  --wb-line: #dedbd2;
  --wb-teal: #16766d;
  background: var(--wb-paper) !important;
  color: var(--wb-ink) !important;
}

.courseos-workbench .courseos-wb-topbar,
.courseos-workbench .courseos-wb-stage-head,
.courseos-workbench .courseos-wb-transport,
.courseos-workbench .courseos-wb-right,
.courseos-workbench .courseos-wb-overlay-card {
  background: #fffdf9 !important;
  border-color: var(--wb-line) !important;
}

.courseos-workbench .courseos-wb-layout,
.courseos-workbench .courseos-wb-main,
.courseos-workbench .courseos-wb-center {
  background: var(--wb-canvas) !important;
}

.courseos-workbench .courseos-wb-rail {
  background: #fbfaf6 !important;
  border-color: var(--wb-line) !important;
}

.courseos-workbench .courseos-wb-brand,
.courseos-workbench .courseos-wb-context strong,
.courseos-workbench .courseos-wb-stage-head h2,
.courseos-workbench .courseos-wb-panel h3,
.courseos-workbench .courseos-wb-overlay-card header h3 {
  color: var(--wb-ink) !important;
}

.courseos-workbench .courseos-wb-kicker,
.courseos-workbench .courseos-wb-tabs button.active,
.courseos-workbench .courseos-wb-resource-status,
.courseos-workbench .courseos-wb-result {
  color: var(--wb-teal) !important;
}

.courseos-workbench .courseos-wb-mark {
  border-radius: 4px !important;
  background: var(--wb-ink) !important;
  color: #f6c9a2 !important;
  transform: none !important;
}

.courseos-workbench .courseos-wb-live {
  color: var(--wb-teal) !important;
  background: #e4f0eb !important;
  border-color: #b8d9d0 !important;
}

.courseos-workbench .courseos-wb-button {
  border-radius: 4px !important;
  background: #fffdf9 !important;
  border-color: var(--wb-line) !important;
  color: #3d4743 !important;
  box-shadow: none !important;
}

.courseos-workbench .courseos-wb-button.primary {
  background: var(--wb-ink) !important;
  border-color: var(--wb-ink) !important;
  color: #fff !important;
}

.courseos-workbench .courseos-wb-button:hover,
.courseos-workbench .courseos-wb-button.primary:hover {
  background: var(--wb-teal) !important;
  border-color: var(--wb-teal) !important;
  color: #fff !important;
}

.courseos-workbench .courseos-wb-nav button.active,
.courseos-workbench .courseos-wb-resource.active,
.courseos-workbench .courseos-wb-tool:hover {
  background: #e4f0eb !important;
  border-color: #b8d9d0 !important;
  color: var(--wb-teal) !important;
}

.courseos-workbench .courseos-wb-canvas {
  min-height: 0 !important;
  border-radius: 4px !important;
  border-color: var(--wb-line) !important;
  background: #fffdf9 !important;
  box-shadow: 0 12px 28px rgba(42, 48, 43, .1) !important;
}

.courseos-workbench .courseos-wb-canvas iframe,
.courseos-workbench .courseos-wb-canvas img,
.courseos-workbench .courseos-wb-canvas video {
  max-width: 100%;
  max-height: 100%;
}

.courseos-workbench .courseos-wb-resource,
.courseos-workbench .courseos-wb-tool,
.courseos-workbench .courseos-wb-question {
  border-radius: 4px !important;
}

.courseos-workbench .courseos-wb-overlay {
  background: rgba(32, 37, 35, .26) !important;
}

.courseos-workbench .courseos-wb-overlay-card {
  border-radius: 6px !important;
}

@media (max-width: 900px) {
  .courseos-app .headline,
  .courseos-app .inst-page-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .courseos-app .headline > button,
  .courseos-app .inst-page-head > button {
    align-self: flex-start;
  }
}

@media (max-width: 620px) {
  .courseos-app .course-grid,
  .courseos-app .product-overview-grid {
    gap: 10px;
  }

  .courseos-app .course-card .cover {
    min-height: 160px;
  }

  .courseos-workbench .courseos-wb-canvas {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .courseos-app .view.active,
  .courseos-app .inst-view.active,
  .courseos-app .course-card,
  .courseos-app .overview-subject,
  .courseos-app .product-large {
    animation: none;
    transition: none;
  }
}

/* Catalog cards should use the available canvas as the catalog grows. */
.courseos-app .explorer-grid,
.courseos-app .institution-card-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: stretch;
}

.courseos-app .explorer-unit-grid,
.courseos-app .institution-unit-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.courseos-app .explorer-lesson-grid,
.courseos-app .institution-lesson-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Real course artwork carries the hierarchy; keep the overlay quiet and remove
   the old decorative geometry that made different levels look interchangeable. */
.courseos-app .explorer-cover.has-cover-image,
.courseos-app .institution-explorer-cover.has-cover-image,
.courseos-app .institution-unit-cover.has-cover-image,
.courseos-app .institution-lesson-cover.has-cover-image {
  background-color: #dfe8e4;
  background-blend-mode: normal;
}

.courseos-app .explorer-cover.has-cover-image::after,
.courseos-app .institution-explorer-cover.has-cover-image::after,
.courseos-app .institution-unit-cover.has-cover-image::after,
.courseos-app .institution-lesson-cover.has-cover-image::after {
  display: none !important;
}

/* Decorative outline shapes are not part of the cover artwork. Keep them out
   of generated and real-image cards alike so the course image remains the
   primary visual signal. */
.courseos-app .explorer-cover::after,
.courseos-app .institution-explorer-cover::after,
.courseos-app .institution-unit-cover::after,
.courseos-app .institution-lesson-cover::after {
  display: none;
}

.courseos-app .institution-explorer-cover::before {
  display: none !important;
}

.courseos-app .explorer-cover.has-cover-image > *,
.courseos-app .institution-explorer-cover.has-cover-image > *,
.courseos-app .institution-unit-cover.has-cover-image > *,
.courseos-app .institution-lesson-cover.has-cover-image > * {
  position: relative;
  z-index: 1;
  color: #fff;
  text-shadow: 0 1px 8px rgba(17, 27, 25, .28);
}

/* Unit cards contain a button wrapper around their title and summary. The
   original direct-child selectors missed that wrapper and let inline text
   collapse into the next line. */
.courseos-app .explorer-unit-grid,
.courseos-app .institution-unit-grid {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.courseos-app .explorer-unit-main {
  display: block;
  width: 100%;
  min-height: 132px;
  padding: 0;
  text-align: left;
  font: inherit;
  color: inherit;
  background: transparent;
  border: 0;
}

.courseos-app .explorer-unit-main > b,
.courseos-app .institution-unit-card > b {
  display: block;
  padding: 10px 10px 3px;
  font-size: 11px;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.courseos-app .explorer-unit-main > small,
.courseos-app .institution-unit-card > small {
  display: -webkit-box;
  min-height: 2.8em;
  padding: 0 10px 10px;
  color: #8a9698;
  font-size: 9px;
  line-height: 1.45;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.courseos-app .explorer-unit-actions {
  display: flex;
  gap: 6px;
  padding: 0 10px 10px;
}

.courseos-app .explorer-unit-actions button {
  flex: 1;
  min-height: 28px;
  padding: 6px 5px;
  font-size: 9px;
}

.courseos-app .explorer-unit-cover,
.courseos-app .institution-unit-cover,
.courseos-app .explorer-lesson-cover,
.courseos-app .institution-lesson-cover {
  position: relative;
  overflow: hidden;
  background-color: #dfe8e4;
}

.courseos-app .explorer-unit-cover.has-cover-image::after,
.courseos-app .explorer-lesson-cover.has-cover-image::after,
.courseos-app .institution-unit-cover.has-cover-image::after,
.courseos-app .institution-lesson-cover.has-cover-image::after {
  display: none !important;
}

.courseos-app .explorer-unit-cover.has-cover-image > *,
.courseos-app .explorer-lesson-cover.has-cover-image > *,
.courseos-app .institution-unit-cover.has-cover-image > *,
.courseos-app .institution-lesson-cover.has-cover-image > * {
  position: relative;
  z-index: 1;
}

.courseos-app .institution-explorer-cover.has-cover-image b,
.courseos-app .explorer-cover.has-cover-image b {
  font-weight: 800;
}

.courseos-app .institution-explorer-cover.has-cover-image b {
  -webkit-text-stroke: 1px rgba(19, 30, 30, .88);
  text-shadow: 0 2px 5px rgba(19, 30, 30, .85);
}

.courseos-app .institution-explorer-cover.has-cover-image small {
  display: inline-block;
  padding: 3px 6px;
  background: rgba(19, 30, 30, .82);
  color: #fff !important;
  opacity: 1 !important;
  text-shadow: none;
}

/* The lesson preview must cover the navigation as well as the page content. */
.courseos-app #platformLessonPreview.open {
  z-index: 420 !important;
}

@media (max-width: 760px) {
  .courseos-app .explorer-grid,
  .courseos-app .institution-card-grid,
  .courseos-app .explorer-unit-grid,
  .courseos-app .institution-unit-grid,
  .courseos-app .explorer-lesson-grid,
  .courseos-app .institution-lesson-grid {
    grid-template-columns: 1fr;
  }
}

/* Fallback art for covers that have not received a custom or API image yet. */
.courseos-app .cover-mint,
.courseos-app .entity-cover.cover-mint,
.courseos-app .institution-explorer-cover.cover-mint,
.courseos-app .institution-lesson-cover.cover-mint {
  background-image: url("site-assets/course-art/creative-art-03.jpg");
}
.courseos-app .cover-coral,
.courseos-app .entity-cover.cover-coral,
.courseos-app .institution-explorer-cover.cover-coral,
.courseos-app .institution-lesson-cover.cover-coral {
  background-image: url("site-assets/course-art/derived/creative-paint-banner.jpg");
}
.courseos-app .cover-indigo,
.courseos-app .entity-cover.cover-indigo,
.courseos-app .institution-explorer-cover.cover-indigo,
.courseos-app .institution-lesson-cover.cover-indigo {
  background-image: url("site-assets/course-art/derived/creative-studio-banner.jpg");
}

.courseos-app .studio-learning-editor {
  margin: 16px 0;
  border: 1px solid #dce8e3;
  border-radius: 6px;
  background: #fff;
}
.courseos-app .studio-learning-editor summary {
  cursor: pointer;
  padding: 14px 16px;
  color: #173c3b;
  font-size: 13px;
  font-weight: 700;
}
.courseos-app .studio-learning-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 4px 16px 16px;
}
.courseos-app .studio-learning-fields label { min-width: 0; }
.courseos-app .studio-learning-fields span,
.courseos-app .studio-learning-share b { display: block; margin-bottom: 6px; font-size: 12px; font-weight: 700; color: #345452; }
.courseos-app .studio-learning-fields textarea {
  display: block;
  width: 100%;
  min-height: 78px;
  padding: 9px 11px;
  resize: vertical;
  border: 1px solid #dce8e3;
  border-radius: 5px;
  background: #fbfdfc;
  color: #1b3033;
  font: inherit;
  font-size: 12px;
}
.courseos-app .studio-learning-fields textarea:focus-visible { outline: 2px solid #087f78; outline-offset: 1px; }
.courseos-app .studio-learning-share { padding: 16px; border-top: 1px solid #e6eeea; }
.courseos-app .studio-learning-share p,
.courseos-app .studio-learning-share small { margin: 0 0 10px; color: #66787a; font-size: 11px; line-height: 1.6; }
.courseos-app .studio-learning-share label { display: flex; align-items: flex-start; gap: 8px; padding: 7px 0; font-size: 12px; overflow-wrap: anywhere; }
.courseos-app .studio-learning-share input { margin: 3px 0 0; accent-color: #087f78; }

.courseos-app .platform-learning-sheet { max-width: 1040px; margin: 0 auto; color: #1b3033; }
.courseos-app .platform-learning-hero {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: flex-end;
  padding: 28px 32px 26px;
  background: #e8f3ee;
  border-top: 5px solid #087f78;
}
.courseos-app .platform-learning-kicker { color: #087f78; font-size: 12px; font-weight: 700; }
.courseos-app .platform-learning-hero h2 { margin: 9px 0 8px; font-size: 28px; line-height: 1.3; color: #193531; }
.courseos-app .platform-learning-hero p { margin: 0; font-size: 13px; color: #59716e; line-height: 1.6; }
.courseos-app .platform-learning-progress { display: flex; flex-direction: column; align-items: flex-end; flex: none; }
.courseos-app .platform-learning-progress strong { font-size: 40px; line-height: 1; color: #087f78; }
.courseos-app .platform-learning-progress span { margin-top: 7px; font-size: 11px; color: #59716e; }
.courseos-app .platform-learning-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 0; border-bottom: 1px solid #dce8e3; }
.courseos-app .platform-learning-actions span { color: #748383; font-size: 11px; }
.courseos-app .platform-learning-actions button { flex: none; padding: 9px 14px; background: #087f78; border: 1px solid #087f78; border-radius: 5px; color: #fff; font-size: 12px; font-weight: 700; }
.courseos-app .platform-learning-actions button:disabled { opacity: .5; cursor: not-allowed; }
.courseos-app .platform-learning-intro,
.courseos-app .platform-learning-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; }
.courseos-app .platform-learning-intro { padding: 25px 4px; border-bottom: 1px solid #dce8e3; }
.courseos-app .platform-learning-intro > div + div { border-left: 1px solid #e0e9e5; padding-left: 30px; }
.courseos-app .platform-learning-intro small { color: #aa704e; font-size: 11px; font-weight: 700; }
.courseos-app .platform-learning-intro h3 { margin: 4px 0 8px; font-size: 17px; }
.courseos-app .platform-learning-sheet section { padding: 22px 4px; border-bottom: 1px solid #dce8e3; }
.courseos-app .platform-learning-sheet section > span,
.courseos-app .platform-learning-attachments-head span { display: block; margin-bottom: 9px; color: #087f78; font-size: 12px; font-weight: 700; }
.courseos-app .platform-learning-sheet p { margin: 0; color: #405b5a; font-size: 14px; line-height: 1.8; overflow-wrap: anywhere; }
.courseos-app .platform-learning-pair section { border-bottom: 1px solid #dce8e3; }
.courseos-app .platform-learning-homework { margin-top: 20px; padding: 24px 26px !important; background: #f0f7f3; border-left: 4px solid #087f78; border-bottom: 0 !important; }
.courseos-app .platform-learning-homework p { font-size: 16px; color: #1e413a; }
.courseos-app .platform-learning-featured > div { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.courseos-app .platform-learning-featured img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #f3f6f4; }
.courseos-app .platform-learning-attachments { margin-top: 26px; }
.courseos-app .platform-learning-attachments-head { display: flex; justify-content: space-between; align-items: start; gap: 16px; margin-bottom: 16px; }
.courseos-app .platform-learning-attachments-head b { color: #798b89; font-size: 12px; white-space: nowrap; }
.courseos-app .platform-learning-attachments-head p { font-size: 12px; }
.courseos-app .platform-learning-attachment-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.courseos-app .platform-learning-attachment { min-width: 0; border: 1px solid #dce8e3; border-radius: 5px; background: #fff; overflow: hidden; }
.courseos-app .platform-learning-attachment > button:first-child { display: block; width: 100%; padding: 0 0 10px; text-align: left; color: #263c3d; }
.courseos-app .platform-learning-attachment-thumb { display: grid; place-items: center; height: 110px; margin-bottom: 9px; background: #f0f5f2; }
.courseos-app .platform-learning-attachment-thumb img { width: 100%; height: 100%; object-fit: contain; }
.courseos-app .platform-learning-attachment-thumb i { color: #087f78; font-size: 18px; font-style: normal; font-weight: 700; }
.courseos-app .platform-learning-attachment strong { display: block; padding: 0 10px; font-size: 12px; line-height: 1.4; overflow-wrap: anywhere; }
.courseos-app .platform-learning-attachment small { display: block; padding: 4px 10px 0; color: #087f78; font-size: 11px; }
.courseos-app .platform-learning-attachment-download { width: 100%; padding: 9px; border-top: 1px solid #dce8e3; color: #087f78; font-size: 11px; text-align: center; }
.courseos-app .platform-learning-attachment button:hover { background-color: #eaf5ef; }
.courseos-app .platform-learning-sheet button:focus-visible { outline: 2px solid #087f78; outline-offset: -2px; }
.courseos-app .platform-learning-empty { padding: 20px; background: #f5f8f6; }
.courseos-app .studio-learning-share > button { display: inline-flex; margin: 12px 0; padding: 8px 12px; font-size: 12px; }
@media (max-width: 700px) {
  .courseos-app .studio-learning-fields,
  .courseos-app .platform-learning-intro,
  .courseos-app .platform-learning-pair { grid-template-columns: 1fr; gap: 0; }
  .courseos-app .platform-learning-hero { padding: 22px 18px; gap: 12px; align-items: start; }
  .courseos-app .platform-learning-hero h2 { font-size: 22px; }
  .courseos-app .platform-learning-progress strong { font-size: 27px; }
  .courseos-app .platform-learning-actions { align-items: stretch; flex-direction: column; }
  .courseos-app .platform-learning-intro > div + div { margin-top: 15px; padding: 15px 0 0; border-left: 0; border-top: 1px solid #e0e9e5; }
  .courseos-app .platform-learning-attachment-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .courseos-app .platform-learning-featured > div { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 420px) {
  .courseos-app .platform-learning-attachment-grid { grid-template-columns: 1fr; }
  .courseos-app .platform-learning-attachment { display: flex; align-items: stretch; }
  .courseos-app .platform-learning-attachment > button:first-child { display: grid; grid-template-columns: 74px 1fr; gap: 4px 10px; padding: 0; }
  .courseos-app .platform-learning-attachment-thumb { grid-row: span 2; height: 74px; margin: 0; }
  .courseos-app .platform-learning-attachment strong { align-self: end; padding: 0; }
  .courseos-app .platform-learning-attachment small { padding: 0; }
  .courseos-app .platform-learning-attachment-download { width: 65px; flex: none; border-top: 0; border-left: 1px solid #dce8e3; }
}

/* Institution management uses the same blue command language as the rest of
   the workspace. Keep the dense data surface readable on desktop and usable
   on narrow screens. */
.courseos-app #org .org-workbench {
  gap: 18px;
}

.courseos-app #org .org-workbench-head {
  align-items: flex-start;
  padding: 2px 0 4px;
}

.courseos-app #org .org-head-actions {
  max-width: 760px;
  justify-content: flex-end;
}

.courseos-app #org .org-head-actions .org-action {
  min-height: 38px;
  padding: 9px 13px;
}

.courseos-app #org .org-head-actions .org-action.primary,
.courseos-app #org .org-inline-actions .org-action.primary {
  background: var(--cos-primary);
  border-color: var(--cos-primary);
  color: #fff;
  box-shadow: 0 7px 16px rgba(63, 123, 243, .16);
}

.courseos-app #org .org-head-actions .org-action.primary:hover,
.courseos-app #org .org-inline-actions .org-action.primary:hover {
  background: var(--cos-primary-strong);
  border-color: var(--cos-primary-strong);
}

.courseos-app #org .org-kpis {
  grid-template-columns: repeat(5, minmax(132px, 1fr));
  gap: 12px;
}

.courseos-app #org .org-kpi {
  min-height: 92px;
  border-color: var(--cos-line);
  border-radius: var(--cos-radius);
  box-shadow: var(--cos-shadow-sm);
}

.courseos-app #org .org-kpi b {
  color: var(--cos-ink);
}

.courseos-app #org .org-toolbar {
  padding: 12px;
  background: var(--cos-surface-soft);
  border-color: var(--cos-line);
  border-radius: var(--cos-radius);
}

.courseos-app #org .org-search,
.courseos-app #org .org-filter {
  border-color: var(--cos-line-strong);
  border-radius: var(--cos-radius-sm);
}

.courseos-app #org .org-workspace {
  grid-template-columns: minmax(310px, 360px) minmax(0, 1fr);
  gap: 16px;
}

/* The directory is a hierarchy first: institutions contain stores, while
   the detail pane carries the full authorization and billing information. */
.courseos-app #org .org-directory-list,
.courseos-app #org .org-hierarchy-view {
  min-width: 0;
}

.courseos-app #org .org-hierarchy-card,
.courseos-app #org .org-hierarchy-branch {
  min-width: 0;
}

@media (max-width: 1500px) {
  .courseos-app #org .org-directory-table-wrap {
    overflow-x: auto;
    overscroll-behavior-x: contain;
  }
}

.courseos-app #org .org-directory,
.courseos-app #org .org-detail-pane {
  border-color: var(--cos-line);
  border-radius: var(--cos-radius);
  box-shadow: var(--cos-shadow-sm);
}

.courseos-app #org .org-directory-head,
.courseos-app #org .org-detail-head {
  background: var(--cos-surface);
  border-color: var(--cos-line);
}

.courseos-app #org .org-directory-table th {
  background: var(--cos-surface-soft);
  color: var(--cos-muted);
}

.courseos-app #org .org-directory-table tbody tr:hover {
  background: var(--cos-primary-soft);
}

.courseos-app #org .org-directory-table tbody tr.active {
  background: #edf7ff;
}

.courseos-app #org .org-view-toggle {
  border-color: var(--cos-line);
  background: var(--cos-surface-soft);
}

.courseos-app #org .org-view-toggle button.active {
  background: var(--cos-primary);
  color: #fff;
}

.courseos-app #org .org-workflow {
  background: var(--cos-surface-soft);
  border-color: var(--cos-line);
  border-radius: var(--cos-radius);
}

.courseos-app #org .org-workflow-step {
  min-width: 0;
  border-color: var(--cos-line);
  background: var(--cos-surface);
}

.courseos-app #org .org-workflow-step:hover {
  border-color: #b9d2ff;
  background: var(--cos-primary-soft);
}

.courseos-app #org .org-workflow-step.done {
  border-color: #bfe5d5;
  background: var(--cos-success-soft);
}

.courseos-app #org .org-selection-bar {
  border-color: #b9d2ff;
  background: var(--cos-primary-soft);
  color: var(--cos-primary);
}

@media (max-width: 1180px) {
  .courseos-app #org .org-kpis {
    grid-template-columns: repeat(3, minmax(150px, 1fr));
  }

  .courseos-app #org .org-workspace {
    grid-template-columns: 300px minmax(0, 1fr);
  }
}

@media (max-width: 820px) {
  .courseos-app #org .org-workbench-head {
    display: block;
  }

  .courseos-app #org .org-head-actions {
    max-width: none;
    justify-content: flex-start;
    margin-top: 14px;
  }

  .courseos-app #org .org-kpis {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .courseos-app #org .org-workspace {
    grid-template-columns: 1fr;
  }

  .courseos-app #org .org-directory-list {
    max-height: 320px;
    overflow: auto;
  }
}

@media (max-width: 560px) {
  .courseos-app #org .org-kpis,
  .courseos-app #org .org-card-grid,
  .courseos-app #org .org-metric-grid,
  .courseos-app #org .org-workflow-steps {
    grid-template-columns: 1fr;
  }

  .courseos-app #org .org-head-actions .org-action {
    flex: 1 1 calc(50% - 8px);
  }

  .courseos-app #org .org-toolbar {
    align-items: stretch;
  }

  .courseos-app #org .org-search,
  .courseos-app #org .org-filter {
    flex-basis: 100%;
    width: 100%;
  }
}

#library .curriculum-tree .major,
#library .curriculum-tree .system {
  width: 100%;
  text-align: left;
}

#library .curriculum-tree .major span:last-child,
#library .curriculum-tree .system span:last-child,
#library .lesson > div {
  min-width: 0;
}

#library .design-unit-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

#library .lesson > div {
  flex: 1;
}

#library .lesson b,
#library .lesson small {
  overflow-wrap: anywhere;
}

#library [hidden] {
  display: none !important;
}

#library .design-search-empty {
  margin: 12px 3px;
  color: var(--muted);
  font-size: 12px;
}

#library .summary-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
}

@media (max-width: 680px) {
  #library .unit-head,
  #library .lesson {
    flex-wrap: wrap;
    gap: 8px;
  }

  #library .unit-head > div {
    flex-wrap: wrap;
  }

  #library .design-unit-actions {
    width: 100%;
  }

  #library .lesson > div {
    flex-basis: calc(100% - 35px);
  }

  #library .lesson .ghost {
    flex: 1 1 auto;
  }
}