/* ================================================================
   ORION Observatory — Lesson Workspace (Nebula)
   Multi-modal learning: Watch, Listen, Map, Recall, Read
   ================================================================ */

/* ── Orbit Hierarchy ── */
.orbit-parent-picker {
  margin: 24px 0 18px;
}

.orbit-parent-picker {
  padding: 18px;
}

.orbit-parent-picker__summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 320px);
  gap: 16px;
  align-items: end;
}

.orbit-parent-picker__summary h2 {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-top: 8px;
}

.orbit-parent-picker__select {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.orbit-parent-picker__select span {
  color: var(--c-white-dim);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.orbit-rail-label {
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.2em;
  color: var(--c-white-dim);
  text-shadow: 0 0 12px rgba(var(--glow),0.16);
  text-transform: uppercase;
}

.orbit-rail-copy {
  color: var(--c-white-muted);
  font-size: var(--fs-sm);
  line-height: 1.45;
  margin-top: 6px;
}

.orbit-flashcard {
  border: 1px solid var(--hair);
  border-radius: 14px;
  background: rgba(255,255,255,0.018);
  color: var(--text);
  cursor: pointer;
  text-align: left;
  perspective: 1400px;
  overflow: hidden;
}

.orbit-capsule-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--hair);
  padding-top: 22px;
}

/* Watch/Listen/Flow/Recall/Read mode switcher. Desktop wraps to a second
   row when needed; mobile turns it into a single scrollable strip (Phase C
   Orbit spec) instead of wrapping five 44px buttons across two lines. */
.orbit-mode-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 18px 0;
}

.orbit-course-shell {
  margin-bottom: 22px;
  padding: 0;
  overflow: hidden;
}

.orbit-course-shell__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--hair);
}

.orbit-course-shell__head p {
  color: var(--c-white-muted);
  font-size: var(--fs-sm);
  line-height: 1.45;
  margin-top: 6px;
}

.orbit-section-list {
  display: flex;
  flex-direction: column;
}

.orbit-section {
  border-bottom: 1px solid var(--hair);
  background: rgba(255,255,255,0.012);
}

.orbit-section:last-child {
  border-bottom: 0;
}

.orbit-section--expanded {
  background:
    radial-gradient(85% 120% at 0% 0%, rgba(var(--glow),0.045), transparent 68%),
    rgba(255,255,255,0.024);
}

.orbit-section__header {
  width: 100%;
  min-height: 58px;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  gap: 12px;
  /* finding 12 — title (Grotesk) and meta (Mono) read as one line, so they
     share a baseline; the chevron column opts back into center below. */
  align-items: baseline;
  border: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  padding: 16px 20px;
  text-align: left;
}

.orbit-section__chevron {
  align-self: center;
  color: var(--c-white-dim);
  font-family: var(--f-mono);
  font-size: var(--fs-sm);
}

.orbit-section__title {
  color: var(--text);
  font-size: var(--fs-base);
  font-weight: 700;
  line-height: 1.25;
}

.orbit-section__meta {
  color: var(--c-white-muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  white-space: nowrap;
  /* Absolute match to .orbit-section__title's line-height (not just the
     ratio) so align-items:baseline lines the two typefaces up cleanly. */
  line-height: calc(var(--fs-base) * 1.25);
}

.orbit-section__topics {
  display: flex;
  flex-direction: column;
  padding: 0 20px 14px 48px;
}

.orbit-topic-row {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto auto;
  gap: 12px;
  /* finding 12 — title (Grotesk) and time/mode (Mono) read as one line, so
     they share a baseline; the icon column opts back into center below. */
  align-items: baseline;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  padding: 10px 12px;
  text-align: left;
}

.orbit-topic-row__icon {
  align-self: center;
}

.orbit-topic-row:hover,
.orbit-topic-row--active {
  border-color: var(--hair2);
  background: rgba(255,255,255,0.04);
}

.orbit-topic-row--active {
  box-shadow: inset 2px 0 0 var(--accent), 0 0 18px rgba(var(--glow),0.06);
}

.orbit-topic-row__icon,
.orbit-topic-row__time,
.orbit-topic-row__modes {
  color: var(--c-white-muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  /* Absolute match to .orbit-topic-row__title's line-height (not just the
     ratio) so align-items:baseline lines the two typefaces up cleanly. */
  line-height: calc(var(--fs-sm) * 1.35);
}

.orbit-topic-row__title {
  color: var(--c-white-dim);
  font-size: var(--fs-sm);
  line-height: 1.35;
}

.orbit-topic-row--active .orbit-topic-row__title {
  color: var(--text);
  font-weight: 700;
}

.orbit-topic-row__modes {
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.orbit-selected-context {
  display: flex;
  flex-direction: column;
  gap: 5px;
  border-top: 1px solid var(--hair);
  padding: 14px 20px 18px;
}

.orbit-selected-context span {
  color: var(--c-white-muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.orbit-selected-context b {
  color: var(--c-white-dim);
  font-family: var(--f-mono);
  font-size: var(--fs-xs);
  font-weight: 700;
  line-height: 1.4;
}

.orbit-capsule-header h2,
.orbit-capsule-title {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-top: 8px;
}

.orbit-capsule-copy {
  color: var(--muted);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.orbit-gate {
  position: sticky;
  top: 96px;
  min-width: 0;
  overflow: hidden;
}

.orbit-gate h3 {
  font-size: var(--fs-lg);
  line-height: 1.15;
  margin: 10px 0 6px;
}

.orbit-gate__action {
  width: 100%;
  margin-top: 18px;
}

@media (max-width: 900px) {
  .orbit-gate {
    position: static;
  }
}

.orbit-capsule-media {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background:
    radial-gradient(65% 65% at 50% 50%, rgba(var(--glow),0.12), transparent 62%),
    repeating-linear-gradient(45deg,#0e0e12,#0e0e12 12px,#101015 12px,#101015 24px);
}

.orbit-capsule-badge {
  position: absolute;
  left: 14px;
  top: 12px;
  border: 1px solid var(--hair2);
  border-radius: 7px;
  color: var(--muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  padding: 5px 8px;
  text-transform: uppercase;
}

.orbit-play-button {
  width: 74px;
  height: 74px;
  border: 1px solid var(--hair2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.42);
  color: var(--text);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.12em;
}

.orbit-resource-list,
.orbit-flow {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.orbit-resource-list div,
.orbit-flow__step {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 14px;
  border-top: 1px solid var(--hair);
  padding-top: 12px;
}

.orbit-resource-list b,
.orbit-flow__step span {
  color: var(--text);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.orbit-resource-list span,
.orbit-flow__step small,
.orbit-read p {
  color: var(--muted);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.orbit-flow__step div b {
  display: block;
  font-family: var(--f-body);
  font-size: var(--fs-base);
  letter-spacing: 0;
  margin-bottom: 4px;
  text-transform: none;
}

.orbit-flashcard {
  width: 100%;
  max-width: 760px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: clamp(20px, 4vw, 34px);
  cursor: default;
  font-family: var(--f-body);
  text-align: left;
}

.orbit-recall {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  font-family: var(--f-body);
}

.orbit-recall__header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.orbit-recall .orbit-rail-label,
.orbit-recall__eyebrow {
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.orbit-recall__counter,
.orbit-recall__meta,
.orbit-recall__evidence code {
  font-family: var(--f-mono);
}

.orbit-recall__counter {
  color: var(--muted);
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.orbit-flashcard__inner {
  width: 100%;
  display: grid;
  transform-style: preserve-3d;
  transition: transform 480ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.orbit-flashcard--flipped .orbit-flashcard__inner {
  transform: rotateY(180deg);
}

.orbit-flashcard__face {
  grid-area: 1 / 1;
  width: 100%;
  min-width: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.orbit-flashcard__front {
  min-height: 150px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  text-align: center;
}

.orbit-flashcard__front h2 {
  max-width: 34ch;
  margin: 0;
  font-family: var(--f-body);
  font-size: var(--fs-lg);
  font-weight: 600;
  line-height: 1.35;
}

.orbit-recall__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.orbit-recall__meta span {
  border: 1px solid var(--hair);
  border-radius: 999px;
  padding: 4px 8px;
  color: var(--muted);
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.orbit-flashcard__back {
  display: grid;
  gap: 18px;
  transform: rotateY(180deg);
}

@media (prefers-reduced-motion: reduce) {
  .orbit-flashcard__inner {
    transition-duration: 1ms;
  }
}

.orbit-recall__answer,
.orbit-recall__detail p,
.orbit-recall__detail li,
.orbit-recall__rubric dd,
.orbit-recall--empty p {
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-base);
  line-height: 1.65;
}

.orbit-recall__answer {
  margin: 0;
  color: var(--text);
  font-size: var(--fs-md);
}

.orbit-recall__detail {
  border-top: 1px solid var(--hair);
  padding-top: 14px;
}

.orbit-recall__detail h3 {
  margin: 0 0 8px;
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 600;
}

.orbit-recall__detail ul,
.orbit-recall__detail ol {
  margin: 0;
  padding-left: 22px;
}

.orbit-recall__evidence code {
  color: var(--text);
  font-size: var(--fs-sm);
  overflow-wrap: anywhere;
}

.orbit-recall__rubric {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
}

.orbit-recall__rubric-item {
  min-width: 0;
}

.orbit-recall__rubric dt {
  color: var(--text);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  text-transform: capitalize;
}

.orbit-recall__rubric dd {
  margin: 4px 0 0;
}

.orbit-recall__safety--review {
  border-top-color: rgba(255, 176, 64, 0.4);
}

.orbit-flashcard__flip,
.orbit-recall__source {
  align-self: flex-start;
}

.orbit-recall__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.orbit-recall--empty {
  align-items: flex-start;
}

.orbit-recall--empty h2,
.orbit-recall--empty p {
  margin: 0;
}

.orbit-read h2 {
  font-size: var(--fs-2xl);
  letter-spacing: -0.02em;
  margin: 12px 0 16px;

}
.orbit-read__lede {
  max-width: 72ch;
  color: var(--text);
  font-family: var(--f-body);
  font-size: var(--fs-md);
  font-weight: 500;
  line-height: 1.65;
}

.orbit-read .orbit-read__lede {
  font-size: var(--fs-md);
  line-height: 1.65;
}

.orbit-read__section,
.orbit-read__takeaways {
  max-width: 76ch;
  margin-top: 22px;
}

.orbit-read__section h3,
.orbit-read__takeaways h3,
.orbit-flow__checkpoints h3 {
  font-family: var(--f-body);
  font-size: var(--fs-base);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.3;
  text-transform: none;
}

.orbit-read__section p,
.orbit-read__section li,
.orbit-read__takeaways li,
.orbit-flow__checkpoints li {
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.65;
}

.orbit-read__section ul,
.orbit-read__takeaways ul,
.orbit-flow__checkpoints ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.orbit-read__source {
  max-width: 76ch;
  margin-top: 24px;
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 400;
  line-height: 1.5;
}

.orbit-read__source a {
  color: var(--text);
  overflow-wrap: anywhere;
  text-underline-offset: 3px;
}

.orbit-read__source a:focus-visible {
  border-radius: 3px;
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.orbit-flow {
  list-style: none;
  padding: 0;
}

.orbit-flow__description {
  max-width: 72ch;
  margin: 12px 0 0;
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-base);
  line-height: 1.65;
}

.orbit-flow__step > div small {
  display: block;
  margin-top: 5px;
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 400;
  line-height: 1.5;
}

.orbit-flow__checkpoints {
  max-width: 76ch;
  margin-top: 24px;
  border-top: 1px solid var(--hair);
  padding-top: 18px;
}

.resource-chip--supplemental {
  align-self: flex-start;
  border: 1px solid var(--hair);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.4;
  text-transform: none;
}

.resource-chip--role,
.resource-chip--quick,
.resource-chip--collection,
.resource-chip--freshness {
  align-self: flex-start;
  border: 1px solid var(--hair);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--c-white-dim);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: .08em;
  line-height: 1.4;
  text-transform: uppercase;
}

.resource-chip--quick {
  border-color: rgba(var(--glow), .28);
  color: var(--accent);
}

@media (max-width: 900px) {
  .orbit-parent-picker__summary {
    grid-template-columns: 1fr;
  }

  .orbit-resource-list div,
  .orbit-flow__step {
    grid-template-columns: 1fr;
  }

  /* The bank-entry's auto-sized meta column (e.g. "75 MUST-SOLVE QUESTIONS
     / 75 NEETCODE VIDEOS") claims its full max-content width before the
     minmax(0,1fr) description column gets a share, so below 900px the
     description collapses toward its 0 minimum and wraps one word per
     line. Stack instead of squeeze. #view-nebula prefix (not just source
     order) beats the later, unscoped base rule at equal specificity. */
  #view-nebula .orbit-bank-entry {
    grid-template-columns: 1fr;
  }

  .orbit-course-shell__head {
    align-items: flex-start;
    flex-direction: column;
  }

  .orbit-section__header {
    grid-template-columns: 24px minmax(0, 1fr);
  }

  .orbit-section__meta {
    grid-column: 2;
  }

  .orbit-section__topics {
    padding-left: 20px;
  }

  .orbit-topic-row {
    grid-template-columns: 20px minmax(0, 1fr) auto;
  }

  .orbit-topic-row__modes {
    grid-column: 2 / -1;
  }
}

@media (max-width: 480px) {
  .orbit-read .orbit-read__lede {
    font-size: var(--fs-base);
  }

  .orbit-read__section p,
  .orbit-read__section li,
  .orbit-read__takeaways li,
  .orbit-flow__checkpoints li {
    font-size: var(--fs-base);
  }
}

/* ── Phase C / mobile (≤768px) — Orbit screen ──
   Rule 4: heroes collapse to eyebrow + one 26px line, no copy paragraph.
   Scoped to #view-nebula so it never touches the other eight routes'
   shared .section-heading. The secondary role/fit line and the copy
   paragraph are removed from layout entirely (not just visually hidden)
   so the <br> the shared OrionUI.sectionHeader() emits before the
   secondary span can't leave a blank second line inside the title. */
@media (max-width: 768px) {
  #view-nebula .section-heading {
    margin-bottom: var(--sp-4);
  }

  #view-nebula .section-heading__title {
    max-width: 100%;
    margin-top: 6px;
    font-size: 26px;
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  #view-nebula .section-heading__title br,
  #view-nebula .section-heading__secondary,
  #view-nebula .section-heading__copy {
    display: none;
  }

  /* Learn modes become a scrollable strip instead of wrapping five 44px
     buttons across two lines. */
  .orbit-mode-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 2px;
    margin: 14px 0 18px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .orbit-mode-row::-webkit-scrollbar {
    display: none;
  }

  .orbit-mode-row [data-orbit-mode] {
    flex: 0 0 auto;
  }

  /* The star-switch select and the Resources panel's filter/search
     controls inherit the shared 42px .orion-input (design-system.css) —
     2px under the 44px floor. Scoped here rather than touching the shared
     base rule, which every other route also depends on. */
  #view-nebula .orion-input {
    min-height: 44px;
  }
}

/* ── Per-topic video management ── */
.orbit-topic-videos {
  padding: 4px 12px 4px 28px;
  border-left: 1px solid var(--hair);
  margin-left: 16px;
}

.orbit-topic-videos__header {
  width: 100%;
  min-height: 40px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 8px 0;
  text-align: left;
}

.orbit-topic-videos__header span {
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.15em;
}

.orbit-topic-videos__header:hover,
.orbit-topic-videos__header:focus-visible {
  color: var(--text);
  outline: 1px solid var(--hair2);
  outline-offset: 2px;
}

.orbit-watch-filters {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.orbit-watch-filters__label {
  margin-right: 2px;
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
}

.orbit-watch-filter {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--hair);
  border-radius: 999px;
  padding: 7px 12px;
  background: rgba(255,255,255,.02);
  color: var(--c-white-dim);
  cursor: pointer;
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
}

.orbit-watch-filter:hover,
.orbit-watch-filter--active {
  border-color: rgba(var(--glow), .35);
  background: rgba(var(--glow), .08);
  color: var(--text);
}

.orbit-watch-filter:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.orbit-media-panel {
  margin-top: 12px;
  border: 1px solid var(--hair);
  border-radius: 12px;
  padding: 14px;
  background: rgba(255,255,255,0.018);
}

.orbit-media-panel[hidden] { display: none; }

.orbit-media-notice {
  min-height: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--c-white-dim);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
}

.orbit-media-notice:empty { display: none; }

.orbit-media-sync-status {
  margin-top: 10px;
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  line-height: 1.4;
}

.orbit-media-sync-status[hidden] { display: none; }

.orbit-media-add,
.orbit-media-move {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.orbit-media-notice:not(:empty) + .orbit-media-add { margin-top: 12px; }

.orbit-media-form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
  gap: 10px;
}

.orbit-media-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  color: var(--c-white-dim);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  line-height: 1.35;
}

.orbit-media-field small {
  color: var(--faint);
  font: inherit;
}

.orbit-media-field--destination { grid-column: 1 / -1; }

.orbit-media-field .orion-input {
  min-height: 42px;
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  text-transform: none;
}

.orbit-media-form-actions,
.orbit-media-row__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.orbit-media-action {
  min-height: 40px;
}

.orbit-media-error {
  color: var(--text);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  line-height: 1.4;
}

.orbit-media-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 40px auto;
  gap: 8px;
  align-items: center;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
}

.orbit-media-favorite {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  align-self: center;
  border: 1px solid var(--hair);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--c-white-muted);
  cursor: pointer;
}

.orbit-media-favorite svg {
  width: 17px;
  height: 17px;
  fill: transparent;
  stroke: currentColor;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.orbit-media-favorite:hover,
.orbit-media-favorite:focus-visible {
  border-color: var(--hair2);
  background: rgba(255, 255, 255, .05);
  color: var(--text);
}

.orbit-media-favorite:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.orbit-media-favorite--active {
  border-color: rgba(var(--glow), .3);
  background: rgba(var(--glow), .08);
  color: var(--accent);
}

.orbit-media-favorite--active svg { fill: currentColor; }

.orbit-media-row:hover,
.orbit-media-row--active {
  border-color: var(--hair2);
  background: rgba(255,255,255,0.04);
}

.orbit-media-row--active {
  box-shadow: inset 2px 0 0 var(--accent), 0 0 18px rgba(var(--glow),0.06);
}

.orbit-media-play {
  min-width: 0;
  min-height: 48px;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  padding: 10px 12px;
  text-align: left;
}

.orbit-media-row__metadata {
  grid-column: 2 / -1;
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
}

.orbit-media-meta-chip {
  display: inline-flex;
  align-items: center;
  min-height: 20px;
  border: 1px solid var(--hair);
  border-radius: 999px;
  padding: 2px 7px;
  color: var(--muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: .07em;
  line-height: 1.2;
  text-transform: uppercase;
}

.orbit-media-play:focus-visible,
.orbit-media-action:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.orbit-media-row--active .orbit-topic-row__title {
  color: var(--text);
  font-weight: 700;
}

.orbit-media-row__actions { padding-right: 8px; }

.orbit-media-move {
  grid-column: 1 / -1;
  border-top: 1px solid var(--hair);
  padding: 12px;
}

.orbit-media-empty {
  color: var(--faint);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  line-height: 1.5;
}

/* DSA keeps the curriculum compact: foundations first, then searchable banks. */
.orbit-course-shell--dsa .orbit-section--bank {
  background: linear-gradient(90deg, rgba(var(--glow), .055), transparent 60%);
}

.orbit-bank-entry {
  width: 100%;
  min-height: 52px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--hair);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, .025);
  color: var(--text);
  padding: 10px 12px;
  text-align: left;
}

.orbit-bank-entry:hover {
  border-color: var(--hair2);
  background: rgba(255, 255, 255, .055);
}

.orbit-bank-entry p,
.orbit-bank-entry span { min-width: 0; }
.orbit-bank-entry p {
  color: var(--c-white-dim);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 400;
  line-height: 1.45;
}
.orbit-bank-entry span {
  color: var(--c-white-muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: .04em;
  line-height: 1.35;
  text-transform: uppercase;
}

.dsa-bank {
  min-width: 0;
  margin-top: 24px;
  border: 1px solid var(--hair2);
  border-radius: var(--r-lg);
  background: linear-gradient(145deg, rgba(21, 21, 26, .97), rgba(10, 10, 13, .96));
  box-shadow: 0 24px 70px rgba(0, 0, 0, .28);
  overflow: hidden;
}

.dsa-bank__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 22px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--hair);
}

.dsa-bank__head h2 {
  max-width: 760px;
  margin: 6px 0 0;
  font-family: var(--f-body);
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.25;
}

.dsa-bank__stats {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.dsa-bank__stats span {
  border: 1px solid var(--hair);
  border-radius: 999px;
  padding: 6px 9px;
  color: var(--muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  line-height: 1.2;
  letter-spacing: .08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.dsa-bank__filters {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) minmax(150px, .6fr) minmax(190px, .8fr);
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--hair);
}

.dsa-bank__filters label {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
  color: var(--muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  line-height: 1.2;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.dsa-bank__filters .orion-input {
  width: 100%;
  min-height: 44px;
  color: var(--text);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  letter-spacing: 0;
  text-transform: none;
}

.dsa-bank__search {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 7px;
}

.dsa-bank__workspace {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(300px, .84fr) minmax(0, 1.16fr);
  min-height: 540px;
}

.dsa-bank-list {
  min-width: 0;
  max-height: 650px;
  overflow: auto;
  border-right: 1px solid var(--hair);
  padding: 10px;
}

.dsa-bank-row {
  width: 100%;
  min-width: 0;
  min-height: 58px;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--text);
  padding: 8px 10px;
  cursor: pointer;
  text-align: left;
}

.dsa-bank-row:hover,
.dsa-bank-row--active {
  border-color: var(--hair2);
  background: rgba(255, 255, 255, .045);
}

.dsa-bank-row--active { box-shadow: inset 2px 0 0 var(--accent); }
.dsa-bank-row--solved .dsa-bank-row__index { color: var(--accent); }
.dsa-bank-row__index,
.dsa-bank-row__status {
  color: var(--faint);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  line-height: 1.2;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.dsa-bank-row__body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.dsa-bank-row__body b {
  overflow: hidden;
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dsa-bank-row__body small {
  overflow: hidden;
  color: var(--muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  line-height: 1.25;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.dsa-bank-list__more { width: 100%; margin-top: 8px; }

.dsa-bank-detail {
  min-width: 0;
  align-self: start;
  padding: var(--sp-6);
}

.dsa-bank-detail h2 {
  max-width: 760px;
  margin: 8px 0 14px;
  font-family: var(--f-body);
  font-size: var(--fs-xl);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.dsa-bank-detail__meta,
.dsa-bank-detail__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.dsa-bank-detail__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 28px 0;
}

.dsa-bank-detail__facts div,
.dsa-bank-detail__video {
  min-width: 0;
  border: 1px solid var(--hair);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, .025);
  padding: 12px;
}

.dsa-bank-detail__facts dt,
.dsa-bank-detail__video span {
  color: var(--faint);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  line-height: 1.2;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.dsa-bank-detail__facts dd {
  margin: 7px 0 0;
  color: var(--text);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.dsa-bank-detail__actions { margin-bottom: 18px; }
.dsa-bank-detail__video { display: flex; flex-direction: column; gap: 6px; }
.dsa-bank-detail__video b {
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1.4;
  overflow-wrap: anywhere;
}
.dsa-bank-detail__video small,
.dsa-bank-detail__note {
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  line-height: 1.5;
}
.dsa-bank-detail__video--pending { border-style: dashed; }

.dsa-bank-empty {
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  line-height: 1.5;
  padding: 28px;
  text-align: center;
}

.dsa-bank-resources {
  border-top: 1px solid var(--hair);
  padding: 18px 20px 20px;
}

.dsa-bank-resources__head h3 {
  margin-top: 5px;
  font-family: var(--f-body);
  font-size: var(--fs-base);
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.3;
}

.dsa-bank-resources__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.dsa-bank-resource {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid var(--hair);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, .025);
  color: var(--text);
  padding: 13px 14px;
  text-decoration: none;
}

.dsa-bank-resource:hover,
.dsa-bank-resource:focus-visible {
  border-color: var(--hair2);
  background: rgba(255, 255, 255, .05);
}

.dsa-bank-resource:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.dsa-bank-resource span,
.dsa-bank-resource small {
  color: var(--c-white-muted);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  letter-spacing: .06em;
  line-height: 1.3;
  text-transform: uppercase;
}

.dsa-bank-resource b {
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: 1.35;
}

.dsa-bank-resource p {
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-sm);
  line-height: 1.5;
}

.dsa-bank-resource small { margin-top: auto; }

.dsa-bank__source {
  border-top: 1px solid var(--hair);
  padding: 13px 20px;
  color: var(--faint);
  font-family: var(--f-mono);
  font-size: var(--fs-micro);
  line-height: 1.5;
  letter-spacing: .045em;
  overflow-wrap: anywhere;
}

@media (max-width: 900px) {
  .dsa-bank__workspace { grid-template-columns: 1fr; }
  .dsa-bank-list { max-height: 430px; border-right: 0; border-bottom: 1px solid var(--hair); }
  .dsa-bank-detail__facts { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .dsa-bank__head { align-items: flex-start; flex-direction: column; padding: 20px 16px 15px; }
  .dsa-bank__stats { justify-content: flex-start; }
  .dsa-bank__filters { grid-template-columns: 1fr; padding: 15px 16px; }
  .dsa-bank__search { grid-template-columns: 1fr; }
  .dsa-bank-list { padding: 7px; }
  .dsa-bank-row { grid-template-columns: 32px minmax(0, 1fr); min-height: 62px; }
  .dsa-bank-row__status { grid-column: 2; }
  .dsa-bank-detail { padding: 24px 18px; }
  .dsa-bank-detail__actions { flex-direction: column; }
  .dsa-bank-detail__actions .orion-action { width: 100%; justify-content: center; }
  .dsa-bank-resources { padding: 16px; }
  .dsa-bank-resources__grid { grid-template-columns: 1fr; }
  .dsa-bank__source { padding: 13px 16px; }

  .orbit-recall__header {
    align-items: flex-start;
  }

  .orbit-flashcard {
    min-height: 0;
    padding: 20px;
  }

  .orbit-flashcard__front h2 {
    font-size: var(--fs-md);
  }

  .orbit-recall__rubric {
    grid-template-columns: 1fr;
  }

  .orbit-flashcard__flip,
  .orbit-recall__source,
  .orbit-recall__actions .orion-action {
    min-height: 44px;
  }

  .orbit-topic-videos {
    margin-left: 8px;
    padding-left: 18px;
  }

  .orbit-topic-videos__header,
  .orbit-media-action,
  .orbit-media-field .orion-input {
    min-height: 44px;
  }

  .orbit-media-form-grid { grid-template-columns: 1fr; }
  .orbit-media-field--destination { grid-column: auto; }

  .orbit-media-row { grid-template-columns: minmax(0, 1fr) 44px; }
  .orbit-media-play { grid-template-columns: 20px minmax(0, 1fr); }
  .orbit-media-play .orbit-topic-row__modes { grid-column: 2; }
  .orbit-media-row__metadata { grid-column: 2; }
  .orbit-media-row__actions { grid-column: 1 / -1; padding: 0 8px 8px; }
  .orbit-media-favorite { width: 44px; height: 44px; }

  .orbit-watch-filters__label {
    flex-basis: 100%;
  }

  .orbit-watch-filter {
    min-height: 44px;
    min-width: 44px;
  }
}
.resource-chip--authority,
.resource-chip--practice,
.resource-chip--time {
  align-self: flex-start;
}

.resource-chip--authority {
  border-color: color-mix(in srgb, var(--accent) 52%, var(--hair));
  color: var(--text);
}

.resource-chip--practice {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.resource-proof {
  margin-top: 3px;
  padding-top: 7px;
  border-top: 1px solid var(--hair);
  color: var(--muted);
  font-family: var(--f-body);
  font-size: var(--fs-xs);
  line-height: 1.45;
}

.resource-proof b {
  color: var(--text);
  font-weight: 600;
}