.learning-journal-dialog {
  width: min(640px, calc(100vw - 32px));
}

.learning-journal-dialog [hidden][hidden] {
  display: none;
}

.learning-journal-body {
  gap: var(--s16);
}

.learning-journal-state {
  min-height: 24px;
  margin: 0;
  color: var(--label-2);
  font-size: 13px;
  line-height: 1.5;
}

.learning-journal-state:empty {
  min-height: 0;
}

.learning-journal-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s8);
}

.learning-journal-nav .btn {
  min-width: 44px;
}

.learning-journal-date {
  min-height: 44px;
  flex: 1 1 160px;
  padding: 0 var(--s12);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--card);
  color: var(--label);
  font: inherit;
  font-size: 15px;
}

.learning-journal-text {
  width: 100%;
  min-height: 240px;
  padding: var(--s16);
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--card);
  color: var(--label);
  font: inherit;
  font-size: 15px;
  line-height: 1.6;
}

.learning-journal-text:focus {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.knowledge-hero .actions {
  max-width: calc(100% - 300px);
}

@media (max-width: 1200px) {
  .knowledge-hero .actions {
    max-width: none;
  }
}

.learning-journal-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--s8);
}

.course-rail {
  padding: var(--s24);
}

.course-rail-block + .course-rail-block {
  margin-top: var(--s24);
  padding-top: var(--s24);
  border-top: 1px solid var(--hair);
}

.course-rail-top .course-rail-progress {
  margin-top: var(--s24);
  padding-top: var(--s24);
  border-top: 1px solid var(--hair);
}

.course-rail .daylist {
  margin-top: var(--s16);
}

.course-rail .daylist li {
  min-height: 44px;
  padding: 10px 0;
}

.course-rail-progress > .row {
  flex-wrap: wrap;
  gap: var(--s8);
}

.course-rail-progress .chip {
  margin-left: auto;
}

.course-rail-trend {
  margin-top: var(--s8);
}

.learning-plan-head {
  margin-top: var(--s16);
}

.learning-daily-plan {
  gap: 0;
  margin-top: var(--s8);
}

.learning-daily-plan li {
  display: grid;
  gap: var(--s8);
  padding: var(--s12) 0;
  border: 0;
  border-bottom: 1px solid var(--hair);
  border-radius: 0;
  background: transparent;
  color: var(--label);
  transition: background-color .15s ease, transform .15s ease;
}

.learning-daily-plan li:last-child {
  border-bottom: 0;
}

.learning-daily-plan li[data-primary="true"] {
  padding-left: var(--s8);
  padding-right: var(--s8);
  border-radius: var(--r-sm);
  background: var(--brand-0);
}

.learning-daily-plan li:hover {
  background: var(--brand-0);
  transform: translateY(-2px);
}

.learning-plan-task-head {
  display: flex;
  align-items: flex-start;
  gap: var(--s8);
}

.learning-plan-task-title {
  display: block;
  color: var(--label);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.learning-plan-task-reason {
  display: block;
  margin-top: var(--s4);
  color: var(--label-2);
  font-size: 13px;
  line-height: 1.45;
}

.learning-plan-task-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s8);
}

.learning-plan-task-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s8);
}

.learning-plan-dialog {
  width: min(720px, calc(100vw - 32px));
}

.learning-plan-body {
  gap: var(--s16);
}

.learning-plan-editor li {
  display: grid;
  gap: var(--s12);
  padding: var(--s16);
  border: 1px solid var(--hair);
  border-radius: var(--r-sm);
  background: var(--page);
}

.learning-plan-editor li[data-primary="true"] {
  border-color: var(--brand-1);
  background: var(--brand-0);
}

.learning-plan-add {
  display: flex;
  align-items: center;
  gap: var(--s8);
}

.learning-plan-add .learning-journal-date {
  min-width: 0;
}

.course-rail-traces {
  display: grid;
  gap: var(--s24);
}

.course-rail-traces .learning-practice-section,
.course-rail-journal {
  gap: var(--s12);
}

.course-rail-list {
  gap: 0;
}

.course-rail-list li {
  padding: var(--s12) 0;
  border: 0;
  border-bottom: 1px solid var(--hair);
  border-radius: 0;
  background: transparent;
  color: var(--label-2);
  font-size: 17px;
}

.course-rail-list li:last-child {
  border-bottom: 0;
}

.course-rail-list li.learning-practice-empty {
  padding-top: var(--s12);
}

.course-rail-journal .learning-journal-text {
  min-height: 190px;
}

.learning-practice-dialog {
  width: min(720px, calc(100vw - 32px));
}

.learning-practice-dialog [hidden][hidden] {
  display: none;
}

.learning-practice-body {
  gap: var(--s24);
}

.learning-practice-state {
  min-height: 24px;
  margin: 0;
  color: var(--label-2);
  font-size: 13px;
  line-height: 1.5;
}

.learning-practice-state:empty {
  min-height: 0;
}

.learning-practice-section {
  display: grid;
  gap: var(--s12);
}

.learning-practice-list,
.learning-quiz-history {
  display: grid;
  gap: var(--s8);
  margin: 0;
  padding: 0;
  list-style: none;
}

.learning-practice-list li,
.learning-quiz-history li {
  padding: var(--s12) var(--s16);
  border: 1px solid var(--hair);
  border-radius: var(--r-sm);
  background: var(--page);
  color: var(--label-2);
  font-size: 15px;
  line-height: 1.6;
}

.learning-practice-list li {
  text-wrap: pretty;
}

.learning-quiz-history li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s8);
}

.learning-practice-empty {
  color: var(--label-2);
  font-size: 15px;
  line-height: 1.6;
}

.course-point-list {
  list-style: decimal;
  padding-left: var(--s24);
}

.course-point-list li {
  display: list-item;
  max-width: 42em;
  padding: var(--s16) var(--s12);
  border: 0;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--label);
  font-size: 17px;
  line-height: 1.47;
  text-wrap: balance;
  transition: background-color .15s ease, transform .15s ease;
}

.course-point-list li::marker {
  color: var(--brand);
  font-weight: 600;
}

.course-point-list li:hover {
  background: var(--brand-0);
  transform: translateY(-2px);
}

.course-point-list li strong,
.course-point-list li span {
  display: block;
}

.course-point-list li strong {
  color: var(--label);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.35;
}

.course-point-list li strong + span {
  margin-top: var(--s8);
  color: var(--label-2);
  font-size: 17px;
  line-height: 1.47;
}

.learning-material-list {
  list-style: none;
  gap: 0;
  padding: 0;
}

.learning-material-list li {
  position: relative;
  display: grid;
  gap: var(--s8);
  padding: var(--s16) var(--s12) var(--s16) var(--s24);
  border: 0;
  border-top: 1px solid var(--hair);
  border-radius: 0;
  background: transparent;
  color: var(--label);
  transition: background-color .15s ease, transform .15s ease;
}

.learning-material-list li:last-child {
  border-bottom: 1px solid var(--hair);
}

.learning-material-list li::before {
  position: absolute;
  top: 30px;
  left: var(--s8);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--brand);
  content: "";
}

.learning-material-list li:hover {
  background: var(--brand-0);
  transform: translateY(-2px);
}

.learning-material-list .link {
  color: var(--label);
  text-wrap: pretty;
}

.learning-material-list .link:hover {
  color: var(--brand);
}

.learning-material-list .small.muted {
  max-width: 42em;
  text-wrap: pretty;
}

.course-reader,
.course-materials,
.assessment-stage {
  padding: 64px;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}

.course-reader:hover,
.course-materials:hover,
.assessment-stage:hover {
  border-color: var(--brand-1);
  box-shadow: 0 18px 40px -34px rgba(29, 29, 31, .28);
  transform: translateY(-2px);
}

.course-mode-switch {
  margin: var(--s16) 0 var(--s24);
}

.course-reader-head {
  align-items: flex-start;
}

.course-reader-head [data-inline-day-title] {
  font-size: 22px;
  line-height: 1.18;
}

.course-card-intro {
  max-width: 39em;
  font-size: 15px;
  line-height: 1.47;
}

.course-reader-head [data-inline-day-access][data-access="free"] {
  padding: 6px 12px;
  border-color: var(--brand-1);
  background: var(--brand-0);
  color: var(--deep);
  font-size: 15px;
  font-weight: 500;
}

.learning-unit-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s12) var(--s24);
  margin-top: var(--s24);
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.learning-unit-strip > .row {
  flex: 1 1 360px;
  align-items: center;
}

.learning-unit-strip > .learning-unit-steps {
  flex: 0 1 auto;
}

.learning-unit-strip > .actions {
  flex: 0 1 auto;
}

.learning-unit-steps {
  margin-top: 0;
}

.learning-unit-steps .chip[data-state="done"] {
  border-color: var(--brand-1);
  background: var(--brand-0);
  color: var(--deep);
}

.learning-unit-dialog [hidden][hidden] {
  display: none;
}

.course-copy-guide {
  max-width: 68ch;
  margin-top: var(--s32);
}

.course-content-section {
  margin-top: var(--s32);
  gap: var(--s16);
}

.course-reader .course-point-list {
  display: grid;
  gap: var(--s8);
  padding-left: var(--s32);
}

.course-reader .course-point-list li {
  padding: var(--s16) var(--s16) var(--s16) var(--s12);
}

.course-reader-note {
  margin-top: var(--s24);
}

.course-practice {
  margin-top: var(--s48);
}

.course-materials .learning-material-list {
  margin-top: var(--s24);
  gap: var(--s4);
}

.course-materials .learning-material-list li:first-child {
  border-top: 0;
}

.course-materials .learning-material-list li,
.course-materials .learning-material-list li:last-child {
  padding: var(--s16) var(--s16) var(--s16) var(--s32);
  border: 0;
}

.course-materials .learning-material-list li::before {
  top: 30px;
  left: var(--s12);
  width: 4px;
  height: 4px;
}

.course-materials .learning-material-list li:hover {
  transform: translateX(4px);
}

.assessment-stage > .row {
  align-items: flex-start;
}

.assessment-list {
  margin-top: var(--s8);
}

.assessment-list li {
  min-height: 44px;
}

.assessment-list .link {
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

#inline-quiz-title,
#inline-exam-title {
  font-size: 56px;
  line-height: 1.05;
}

.course-progress .daylist + .eyebrow {
  margin-top: var(--s32);
}

[data-planet-lit] {
  flex: none;
  white-space: nowrap;
}

[data-planet-relations] button,
[data-planet-card-relations] button {
  position: relative;
  max-width: 100%;
  height: auto;
  min-height: 28px;
  padding: 6px 8px;
  line-height: 1.3;
  text-align: left;
  white-space: normal;
}

[data-planet-relations] button::after,
[data-planet-card-relations] button::after {
  position: absolute;
  inset: -8px -4px;
  content: "";
}

.planet-universe-band {
  overflow: hidden;
  background:
    radial-gradient(circle at 16% 22%, rgba(123, 147, 255, .22), transparent 24%),
    radial-gradient(circle at 82% 12%, rgba(201, 211, 255, .13), transparent 22%),
    linear-gradient(145deg, var(--deep) 0%, var(--deep) 52%, var(--brand) 100%);
  color: #fff;
}

.planet-universe-intro {
  max-width: 44em;
}

.planet-universe-band .eyebrow,
.planet-universe-muted,
.planet-universe-band .small.muted {
  color: rgba(255, 255, 255, .68);
}

.planet-universe-lead {
  max-width: 38em;
  color: rgba(255, 255, 255, .78);
}

.planet-proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: var(--s32);
  padding: var(--s24) 0;
  border-top: 1px solid rgba(255, 255, 255, .16);
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}

.planet-proof li {
  display: grid;
  gap: var(--s8);
  padding: 0 var(--s24);
  border-left: 1px solid rgba(255, 255, 255, .16);
}

.planet-proof li:first-child {
  padding-left: 0;
  border-left: 0;
}

.planet-proof strong {
  color: #fff;
  font-size: 40px;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.006em;
}

.planet-proof span {
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
  line-height: 1.38;
}

.planet-proof-note {
  margin-top: var(--s16);
}

.planet-cosmos-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(280px, .75fr);
  gap: var(--s24);
  align-items: start;
}

.planet-cosmos-map,
.planet-cosmos-focus {
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--r-lg);
}

.planet-cosmos-map {
  position: relative;
  min-height: 440px;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 24%, rgba(255, 255, 255, .34) 0 1px, transparent 1.6px),
    radial-gradient(circle at 74% 18%, rgba(201, 211, 255, .3) 0 1px, transparent 1.8px),
    radial-gradient(circle at 42% 72%, rgba(255, 255, 255, .24) 0 1px, transparent 1.7px),
    radial-gradient(circle at 88% 66%, rgba(123, 147, 255, .34) 0 1px, transparent 1.8px),
  var(--deep);
  background-size: 180px 180px, 240px 240px, 210px 210px, 280px 280px, auto;
}

.planet-graph-inline {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
  border-radius: inherit;
  background: transparent;
}

.planet-cosmos-empty {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: var(--s24);
  padding: var(--s32);
  text-align: center;
}

.planet-cosmos-empty[hidden] {
  display: none;
}

.planet-cosmos-empty-copy {
  max-width: 24em;
  color: rgba(255, 255, 255, .9);
  font-size: 17px;
  line-height: 1.47;
}

.planet-cosmos-orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 56%;
  aspect-ratio: 1;
  border: 1px solid rgba(201, 211, 255, .16);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.planet-cosmos-orbit::before,
.planet-cosmos-orbit::after {
  position: absolute;
  border: 1px solid rgba(201, 211, 255, .1);
  border-radius: 50%;
  content: "";
}

.planet-cosmos-orbit::before {
  inset: -34%;
}

.planet-cosmos-orbit::after {
  inset: 22%;
}

.planet-cosmos-hint {
  position: absolute;
  right: var(--s24);
  left: var(--s24);
  z-index: 2;
  margin: 0;
  color: rgba(255, 255, 255, .66);
  font-size: 12px;
  line-height: 1.38;
  pointer-events: none;
}

.planet-cosmos-hint {
  top: var(--s24);
}

.planet-cosmos-focus {
  display: flex;
  flex-direction: column;
  padding: var(--s32);
background: var(--brand);
}

.planet-cosmos-focus .eyebrow {
  color: var(--brand-1);
}

.planet-universe-body {
  color: rgba(255, 255, 255, .84);
  line-height: 1.5;
}

.planet-cosmos-stats {
  margin-top: var(--s16);
}

.planet-cosmos-stats .chip {
  border-color: rgba(255, 255, 255, .18);
  color: rgba(255, 255, 255, .72);
}

.planet-cosmos-relations .chip,
.planet-cosmos-relations button {
  border-color: rgba(255, 255, 255, .18);
  background: transparent;
  color: rgba(255, 255, 255, .82);
}

.planet-cosmos-relations button:hover,
.planet-cosmos-relations button:focus-visible {
  border-color: var(--brand-1);
  color: #fff;
}

.planet-cosmos-actions {
  margin-top: var(--s24);
}

.planet-cosmos-actions .btn-ghost {
  border-color: rgba(255, 255, 255, .24);
  color: #fff;
}

.planet-cosmos-actions .btn-ghost:hover {
  background: rgba(255, 255, 255, .08);
  color: #fff;
}

.planet-cosmos-gate {
  background: #fff;
  color: var(--deep);
}

.planet-cosmos-gate:hover {
  background: var(--brand-1);
  color: var(--deep);
}

@media (max-width: 900px) {
  .planet-cosmos-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .planet-cosmos-map {
    min-height: 400px;
  }

  .planet-cosmos-focus {
    min-height: 0;
  }
}

@media (max-width: 1200px) {
  .course-reader,
  .course-materials,
  .assessment-stage {
    padding: 48px;
  }
}

@media (max-width: 600px) {
  .course-rail {
    padding: var(--s16);
  }

  .learning-plan-dialog {
    width: calc(100vw - 24px);
    max-height: calc(100vh - 24px);
  }

  .learning-plan-add {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .course-rail-block + .course-rail-block {
    margin-top: var(--s24);
    padding-top: var(--s24);
  }

  .course-reader,
  .course-materials,
  .assessment-stage {
    padding: var(--s24);
  }

  #inline-quiz-title,
  #inline-exam-title {
    font-size: 34px;
  }

  .planet-cosmos-map {
    min-height: 320px;
  }

  .planet-proof {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s16);
    padding: var(--s16) 0;
  }

  .planet-proof li {
    grid-template-columns: 144px minmax(0, 1fr);
    align-items: end;
    padding: 0;
    border-left: 0;
  }

  .planet-proof strong {
    font-size: 34px;
  }

  .planet-cosmos-empty {
    padding: var(--s24);
  }

  .planet-cosmos-focus {
    padding: var(--s24);
  }

  .course-mode-switch {
    display: flex;
    width: 100%;
    margin: var(--s16) 0 var(--s24);
  }

  .learning-unit-strip {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s12);
  }

  .learning-unit-strip > .row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s8);
  }

  .learning-unit-strip > .row .pill {
    justify-self: start;
    margin-left: 0;
    white-space: nowrap;
  }

  .learning-unit-strip > .learning-unit-steps {
    justify-content: flex-start;
  }

  .course-mode-switch button {
    flex: 1;
    min-width: 0;
    padding: 0 var(--s12);
  }

  .course-reader-head,
  .assessment-stage > .row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--s12);
  }

  .course-copy-guide,
  .course-content-section,
  .course-practice {
    margin-top: var(--s24);
  }

  .course-track > .row:first-child {
    flex-wrap: wrap;
  }

  .course-track > .row:first-child .link {
    flex-basis: 100%;
    justify-content: flex-start;
    margin-left: 0;
    white-space: normal;
    text-align: left;
  }

  .learning-material-list .row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s4);
  }

  .learning-material-list .link {
    white-space: normal;
  }

  .learning-journal-dialog {
    width: calc(100vw - 24px);
    max-height: calc(100vh - 24px);
  }

  .learning-practice-dialog {
    width: calc(100vw - 24px);
    max-height: calc(100vh - 24px);
  }

  .learning-journal-text {
    min-height: 220px;
  }

  .learning-journal-actions .btn {
    flex: 1 1 100%;
  }

  .learning-practice-dialog .library-dialog-body {
    max-height: calc(100vh - 160px);
    padding: var(--s16);
  }
}

@media (prefers-reduced-motion: reduce) {
  .course-reader,
  .course-materials,
  .assessment-stage,
  .course-point-list li,
  .learning-material-list li {
    transition: none;
  }

  .course-reader:hover,
  .course-materials:hover,
  .assessment-stage:hover,
  .course-point-list li:hover,
  .learning-material-list li:hover {
    transform: none;
  }
}

.learning-feedback-field {
  display: grid;
  gap: var(--s8);
  margin-top: var(--s24);
  color: var(--label-2);
  font-size: 13px;
}

.learning-feedback-field textarea {
  width: 100%;
  min-height: 180px;
  padding: var(--s12);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--card);
  color: var(--label);
  font: inherit;
  font-size: 17px;
  line-height: 1.47;
  resize: vertical;
}

.learning-feedback-field textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--brand-0);
  outline: 0;
}

.learning-feedback-consent {
  display: flex;
  align-items: flex-start;
  gap: var(--s8);
  margin-top: var(--s16);
  color: var(--label-2);
  font-size: 15px;
  line-height: 1.47;
}

.learning-feedback-consent input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--brand);
  flex: none;
}

.learning-record-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s8);
  margin-top: var(--s8);
}

.learning-record-actions button {
  min-height: 44px;
  padding: 0 var(--s12);
  border: 1px solid var(--hair);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--brand);
  font: inherit;
  font-size: 13px;
}

.learning-record-feedback {
  display: block;
  margin-top: var(--s8);
  color: var(--label-2);
  font-size: 13px;
}

.course-note-dialog {
  width: min(1180px, calc(100vw - 32px));
  height: min(88vh, 900px);
  max-height: calc(100vh - 32px);
  padding: 0;
}

.course-note-dialog[open] {
  display: flex;
  flex-direction: column;
}

.course-note-body {
  position: relative;
  flex: 1;
  min-height: 0;
  background: var(--page);
}

.course-note-body iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--page);
}

.course-note-state {
  position: absolute;
  inset: var(--s24);
  z-index: 1;
  margin: 0;
  color: var(--label-2);
  font-size: 15px;
  line-height: 1.47;
}

.course-note-state[hidden] {
  display: none;
}

@media (max-width: 600px) {
  .course-note-dialog {
    width: calc(100vw - 16px);
    height: calc(100dvh - 16px);
    max-height: calc(100dvh - 16px);
  }

  .course-note-dialog .library-dialog-head {
    padding: var(--s24) var(--s24) var(--s16);
  }
}

/* Classroom hierarchy: lesson title first, supporting stages second. */
#inline-today-title {
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: -.006em;
}

#inline-materials-title,
#inline-quiz-title,
#inline-exam-title {
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: -.006em;
}

main > .knowledge-hero ~ section .h2 {
  font-size: 34px;
  line-height: 1.18;
  letter-spacing: -.006em;
}

.course-reader,
.course-materials,
.assessment-stage {
  padding: var(--s48);
}

@media (max-width: 600px) {
  #inline-today-title {
    font-size: 22px;
  }

  #inline-materials-title,
  #inline-quiz-title,
  #inline-exam-title {
    font-size: 22px;
  }

  .course-reader,
  .course-materials,
  .assessment-stage {
    padding: var(--s24);
  }
}

/* Classroom authority pass: structured hero, selectable syllabus, compact progress. */
.knowledge-hero-title {
  display: grid;
  max-width: 8em;
}

#course,
#five-dim,
#prep,
#planet {
  scroll-margin-top: calc(var(--nav-h) + var(--s16));
}

.knowledge-hero-title .mask {
  display: block;
}

.knowledge-hero-links {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  width: min(100%, 680px);
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--hair);
  border-radius: 24px;
  background: var(--page);
}

.knowledge-hero-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 44px;
  min-height: 44px;
  min-width: 0;
  padding-right: var(--s12);
  padding-left: var(--s12);
  border: 0;
  border-radius: var(--r-md);
  background: transparent;
  color: var(--label-2);
  font: inherit;
  font-size: 15px;
  font-weight: 400;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.knowledge-hero-link.is-active {
  border: 1px solid var(--hair);
  background: var(--card);
  color: var(--label);
  font-weight: 500;
}

.knowledge-hero-link:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}

[data-course-track] .course-rail {
  min-height: 0;
}

.course-directory-head {
  display: grid;
  gap: var(--s8);
}

.course-module-list {
  display: grid;
}

.course-rail .course-module-list > li {
  display: block;
  min-height: 0;
  padding: 0;
}

.course-module-button {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto;
  align-items: center;
  width: 100%;
  min-height: 44px;
  gap: var(--s8);
  padding: 10px 0;
  border: 0;
  background: transparent;
  color: var(--label-2);
  font: inherit;
  font-size: 15px;
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
}

.course-module-button .dot {
  transition: transform .15s ease, background-color .15s ease, border-color .15s ease;
}

@media (hover: hover) {
  .course-module-button:hover .dot {
    border-color: var(--brand-1);
    background: var(--brand-0);
    transform: scale(1.15);
  }
}

.course-module-button:focus-visible .dot {
  border-color: var(--brand);
}

.course-module-name {
  min-width: 0;
  text-wrap: pretty;
}

.course-module-button:hover .course-module-name,
.course-module-button:focus-visible .course-module-name,
.course-module-list > li[data-on="true"] .course-module-name {
  color: var(--label);
}

.course-module-list > li[data-on="true"] .course-module-name {
  font-weight: 600;
}

.course-module-button:focus-visible,
.course-day-choice:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.course-day-sublist {
  display: grid;
  margin: 0 0 var(--s8) var(--s8);
  padding-left: var(--s12);
  border-left: 1px solid var(--hair);
}

.course-day-sublist[hidden] {
  display: none;
}

.course-day-choice {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  align-items: start;
  width: 100%;
  min-height: 44px;
  gap: var(--s8);
  padding: var(--s8);
  border: 0;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--label-2);
  font: inherit;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}

.course-day-choice:hover,
.course-day-choice[aria-current="true"] {
  background: var(--brand-0);
}

.course-day-choice span {
  color: var(--label);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.38;
  white-space: nowrap;
}

.course-day-choice small {
  min-width: 0;
  color: var(--label-2);
  font-size: 13px;
  line-height: 1.38;
  text-wrap: pretty;
}

.course-day-choice.is-title-only {
  grid-template-columns: minmax(0, 1fr);
}

.course-day-choice.is-title-only.is-numbered {
  grid-template-columns: 24px minmax(0, 1fr);
}

.course-day-choice .elective-lesson-number {
  color: var(--label-2);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.38;
  font-variant-numeric: tabular-nums;
}

.course-day-choice.is-title-only small {
  color: var(--label-2);
  font-size: 13px;
  line-height: 1.38;
}

.course-progress-strip {
  display: grid;
  gap: var(--s12);
  margin: 0 0 var(--s24);
  padding: var(--s16) var(--s24);
}

.course-progress-strip-head,
.course-progress-strip-foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s16);
}

.course-progress-title {
  margin: var(--s4) 0 0;
  color: var(--label);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.35;
  text-wrap: balance;
}

.course-progress-module,
.course-progress-strip-foot p {
  margin: 0;
  color: var(--label-2);
  font-size: 13px;
  line-height: 1.38;
}

.course-progress-module {
  max-width: 18em;
  text-align: right;
}

.course-progress-track {
  margin: 0;
}

.course-reader .course-mode-switch {
  margin: var(--s24) 0 0;
}

.course-reader .course-copy-guide {
  margin-top: var(--s24);
}

.course-source-copy {
  max-width: 34em;
  margin-top: var(--s16);
  font-size: 13px;
  line-height: 1.38;
}

.course-source-open {
  justify-content: center;
}

.course-objectives {
  margin-top: var(--s32);
  padding-top: var(--s24);
  border-top: 1px solid var(--hair);
}

.course-objectives .row {
  align-items: center;
}

.course-objectives .course-point-list {
  gap: 0;
  padding-left: var(--s24);
}

.course-objectives .course-point-list li {
  padding: var(--s8) var(--s12);
  font-size: 15px;
  line-height: 1.4;
  text-wrap: pretty;
}

.course-objectives .course-point-list li strong {
  font-size: 15px;
  line-height: 1.4;
}

.course-objectives .course-point-list li strong + span {
  margin-top: var(--s4);
  font-size: 15px;
  line-height: 1.4;
}

.course-stage-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: 100%;
}

.course-stage-tabs button {
  width: 100%;
  text-align: center;
}

.course-stage-tabs button[data-state="active"] {
  color: var(--brand);
}

.course-stage-tabs button[data-state="done"] {
  color: var(--deep);
}

.course-stage-current {
  margin-top: 0;
}

.course-stage-current p {
  margin: 0;
}

.course-reader-note {
  display: grid;
  justify-items: center;
  gap: var(--s12);
  margin-top: var(--s32);
  padding-top: var(--s32);
  border-top: 1px solid var(--hair);
}

.course-note-action {
  min-width: 200px;
  justify-content: center;
}

.course-practice-stage {
  padding: var(--s48);
}

.course-practice-stage .course-point-list {
  display: grid;
  gap: var(--s8);
  padding-left: var(--s32);
}

.course-practice-stage .course-point-list li {
  padding: var(--s16) var(--s16) var(--s16) var(--s12);
}

.elective-overview {
  padding: var(--s48);
}

#elective-overview-title {
  max-width: 20em;
  font-size: 22px;
  line-height: 1.18;
  text-wrap: balance;
}

.elective-overview-title-line {
  display: block;
}

.elective-overview .body {
  max-width: 39em;
  font-size: 15px;
  line-height: 1.47;
}

.elective-overview .small {
  font-size: 13px;
  line-height: 1.38;
}

[data-elective-open-wrap][hidden] {
  display: none;
}

.elective-directory-state {
  margin: var(--s8);
}

#inline-tasks-title {
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: -.006em;
}

.planet-kicker {
  font-size: 15px;
  font-weight: 600;
}

@media (max-width: 1200px) {
  [data-course-track].learning-layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: var(--s32);
  }

  .course-reader,
  .course-materials,
  .assessment-stage,
  .course-practice-stage,
  .elective-overview {
    padding: var(--s32);
  }
}

@media (max-width: 900px) {
  [data-course-track].learning-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--s32);
  }

  [data-course-track] .course-rail {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .knowledge-hero-title {
    max-width: 100%;
  }

  .knowledge-hero-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .knowledge-hero-link {
    height: 44px;
    min-height: 44px;
  }

  .knowledge-hero-link:last-child {
    grid-column: 1 / -1;
  }

  .course-module-button {
    grid-template-columns: 16px minmax(0, 1fr) auto;
    font-size: 13px;
  }

  .course-module-button .chip {
    grid-column: auto;
    justify-self: end;
    margin-left: 0;
  }

  .course-progress-strip {
    padding: var(--s16);
  }

  .course-stage-tabs button {
    padding-right: var(--s8);
    padding-left: var(--s8);
    font-size: 13px;
  }

  .course-progress-strip-head,
  .course-progress-strip-foot {
    display: grid;
    align-items: start;
    gap: var(--s8);
  }

  .course-progress-module {
    max-width: none;
    text-align: left;
  }

  .course-note-action {
    width: 100%;
    min-width: 0;
  }

  .course-source-open {
    width: 100%;
  }

  .course-practice-stage {
    padding: var(--s24);
  }

  .elective-overview {
    padding: var(--s24);
  }
}

@media (prefers-reduced-motion: reduce) {
  .course-module-button,
  .course-day-choice,
  .course-note-action {
    transition: none;
  }

  .course-module-button:hover .dot {
    transform: none;
  }
}