.learn-video-poster {
  position: relative;
  display: block;
  min-height: 210px;
  margin-top: 12px;
  border: 1px solid var(--learn-line);
  border-radius: var(--learn-radius);
  overflow: hidden;
  filter: grayscale(1);
}

.learn-video-poster-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.learn-video-poster::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.42)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 8px);
}

.learn-play-button {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border: 2px solid rgba(255, 255, 255, 0.86);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.36);
  font-family: "Space Mono", Consolas, monospace;
}

.learn-duration {
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 2;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.68);
  font-size: 12px;
}

.learn-image-card img {
  width: 100%;
  display: block;
  border: 1px solid var(--learn-line);
  border-radius: var(--learn-radius);
  filter: grayscale(1);
}

.learn-image-card figcaption {
  color: var(--learn-muted);
  font-size: 12px;
  padding-top: 8px;
}

.learn-chart {
  width: 100%;
  min-height: 140px;
  display: block;
}

.learn-tool-legend,
.learn-related-grid,
.learn-card-grid,
.learn-badge-grid,
.learn-panel-grid {
  display: grid;
  gap: 12px;
}

.learn-tool-legend {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.learn-related-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.learn-card-grid {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.learn-panel-grid {
  grid-template-columns: repeat(12, 1fr);
}
.learn-card-grid.learn-library-cluster-grid {
  grid-template-columns: 1fr;
  margin-top: 14px;
}
.learn-badge-grid.learn-badge-grid-compact {
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}

.learn-related-section {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--learn-line);
}

.learn-related-card,
.learn-activity-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  min-height: 70px;
  padding: 12px;
  border: 1px solid var(--learn-line);
  border-radius: var(--learn-radius);
  background: rgba(255, 255, 255, 0.035);
}

.learn-related-card:hover,
.learn-library-card:hover,
.learn-tool-tile:hover,
.learn-activity-row:hover {
  border-color: var(--learn-line-strong);
  background: rgba(255, 255, 255, 0.065);
  transform: translateY(-1px);
}

.learn-page-scaffold {
  height: 100%;
  overflow: auto;
  padding: 24px;
}

.learn-page-head {
  align-items: end;
  justify-content: space-between;
  margin-bottom: 20px;
}

.learn-page-title {
  font-size: 46px;
}
.learn-page-subtitle {
  margin: 10px 0 0;
  color: var(--learn-muted);
  line-height: 1.62;
  max-width: 760px;
}

.learn-panel {
  padding: 18px;
}
.learn-span-3 {
  grid-column: span 3;
}
.learn-span-4 {
  grid-column: span 4;
}
.learn-span-5 {
  grid-column: span 5;
}
.learn-span-6 {
  grid-column: span 6;
}
.learn-span-7 {
  grid-column: span 7;
}
.learn-span-8 {
  grid-column: span 8;
}
.learn-span-12 {
  grid-column: span 12;
}

.learn-input,
.learn-select,
.learn-toggle {
  padding: 0 12px;
}

.learn-input {
  min-width: min(100%, 300px);
}

.learn-chip.is-active,
.learn-tool-tile.is-active,
.learn-toggle[aria-pressed="true"] {
  border-color: var(--learn-line-strong);
  background: rgba(255, 255, 255, 0.08);
  color: var(--learn-accent);
}

.learn-tool-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 16px;
}

.learn-tool-section {
  margin-top: 16px;
}

.learn-tool-actions {
  margin: 14px 0;
}

.learn-tool-nav {
  display: grid;
  gap: 10px;
  align-content: start;
}

.learn-tool-tile {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 8px 10px;
}

.learn-tool-tile small {
  grid-column: 2;
  color: var(--learn-muted);
  line-height: 1.4;
}

.learn-textarea {
  width: 100%;
  min-height: 320px;
  resize: vertical;
  border: 1px solid var(--learn-line);
  border-radius: var(--learn-radius);
  background: rgba(0, 0, 0, 0.46);
  color: var(--learn-text);
  padding: 14px;
  font-family: "Space Mono", Consolas, ui-monospace, monospace;
  line-height: 1.55;
}

.learn-preview-box {
  min-height: 320px;
}

.learn-stat-value {
  font-size: 32px;
  font-weight: 850;
  color: var(--learn-text);
}

.learn-stat-label {
  color: var(--learn-muted);
  font-family: "Space Mono", Consolas, monospace;
  font-size: 11px;
  text-transform: uppercase;
}

.learn-progress-ring {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 6px auto 14px;
  background: conic-gradient(var(--learn-accent) var(--progress, 0%), rgba(255, 255, 255, 0.1) 0);
  position: relative;
}

.learn-progress-ring::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: inherit;
  background: #050505;
}

.learn-progress-ring strong {
  position: relative;
  z-index: 1;
  font-size: 26px;
}

.learn-profile-summary-card .learn-card-title,
.learn-profile-summary-card .learn-card-text {
  text-align: center;
}

.learn-progress-bar {
  height: 8px;
  overflow: hidden;
  border: 1px solid var(--learn-line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  margin-top: 12px;
}

.learn-progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--learn-accent);
}

.learn-activity-list {
  display: grid;
  gap: 10px;
}
.learn-activity-copy small {
  display: block;
  color: var(--learn-muted);
}
.learn-activity-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--learn-accent);
  box-shadow: 0 0 18px rgba(255, 255, 255, 0.5);
}

.learn-setting-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid var(--learn-line);
}

.learn-setting-row:last-child {
  border-bottom: 0;
}
.learn-setting-row p {
  margin: 5px 0 0;
  color: var(--learn-muted);
  line-height: 1.45;
}
.learn-range {
  min-width: 210px;
}

.learn-discord-card {
  background: linear-gradient(180deg, rgba(44, 44, 44, 0.92), rgba(12, 12, 12, 0.95));
}

.learn-discord-title {
  font-weight: 850;
  font-size: 20px;
  margin-bottom: 8px;
}
.learn-discord-description {
  color: #dedede;
  line-height: 1.55;
}

.learn-empty {
  padding: 32px;
  border: 1px dashed var(--learn-line);
  border-radius: var(--learn-radius);
  color: var(--learn-muted);
  text-align: center;
}

.learn-empty strong,
.learn-empty span,
.learn-empty small {
  display: block;
}

.learn-empty small {
  margin-top: 8px;
  color: var(--learn-faint);
}

.learn-profile-connect {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.learn-profile-api-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.learn-profile-api-grid .learn-empty {
  grid-column: 1 / -1;
}

.learn-profile-form {
  margin-top: 14px;
}

.learn-profile-fact {
  min-width: 0;
  border: 1px solid var(--learn-line);
  border-radius: var(--learn-radius);
  background: rgba(255, 255, 255, 0.035);
  padding: 12px;
}

.learn-profile-fact span {
  display: block;
  color: var(--learn-muted);
  font-family: var(--learn-mono);
  font-size: 10px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.learn-profile-fact strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.learn-palette {
  width: min(760px, calc(100vw - 36px));
  border: 1px solid var(--learn-line-strong);
  border-radius: var(--learn-radius);
  background: rgba(5, 5, 5, 0.96);
  color: var(--learn-text);
  padding: 0;
  box-shadow: 0 34px 120px rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(18px);
}

.learn-palette::backdrop {
  background: rgba(0, 0, 0, 0.64);
  backdrop-filter: blur(8px);
}
.learn-palette-shell {
  margin: 0;
}
.learn-palette-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border-bottom: 1px solid var(--learn-line);
}

.learn-palette-mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--learn-line);
  border-radius: 6px;
  color: var(--learn-accent);
}

.learn-palette-head input {
  border: 0;
  background: transparent;
  color: var(--learn-text);
  font-size: 17px;
  outline: 0;
}

.learn-palette-head button {
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--learn-muted);
}

.learn-palette-head button:hover {
  border-color: var(--learn-line);
  color: var(--learn-text);
  background: rgba(255, 255, 255, 0.055);
}

.learn-palette-close .learn-icon {
  width: 18px;
  height: 18px;
}

.learn-palette-results {
  max-height: 440px;
  overflow: auto;
  padding: 10px;
}

.learn-palette-result {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 11px;
  border-radius: var(--learn-radius);
  color: #dddddd;
}

.learn-palette-result:hover,
.learn-palette-result.is-selected {
  background: rgba(255, 255, 255, 0.075);
}
.learn-palette-result small {
  display: block;
  color: var(--learn-muted);
  margin-top: 3px;
}

.learn-toast {
  position: fixed;
  right: 24px;
  bottom: 22px;
  z-index: 40;
  min-width: 220px;
  transform: translateY(20px);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 180ms ease,
    opacity 180ms ease;
  padding: 13px 15px;
  border: 1px solid var(--learn-line-strong);
  border-radius: var(--learn-radius);
  background: rgba(5, 5, 5, 0.94);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.48);
}

.learn-toast.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.learn-skip-link {
  position: fixed;
  left: 14px;
  top: 12px;
  z-index: 100;
  transform: translateY(-150%);
  border: 1px solid var(--learn-line-strong);
  border-radius: var(--learn-radius);
  background: #050505;
  color: var(--learn-text);
  padding: 8px 11px;
  transition: transform 160ms ease;
}

.learn-skip-link:focus {
  transform: translateY(0);
}

.learn-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.learn-section-kicker {
  color: var(--learn-muted);
  font-family: "Space Mono", Consolas, ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0;
  text-transform: uppercase;
}

.learn-nav-glyph,
.learn-result-glyph {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--learn-line);
  border-radius: 6px;
  font-family: "Space Mono", Consolas, monospace;
  font-size: 12px;
}

.learn-nav-glyph .learn-icon,
.learn-result-glyph .learn-icon {
  width: 14px;
  height: 14px;
}

.learn-hub-link,
.learn-profile-mini {
  border: 1px solid var(--learn-line);
  border-radius: var(--learn-radius);
  background: rgba(255, 255, 255, 0.035);
}

.learn-hub-link {
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  color: var(--learn-muted);
  font-family: "Space Mono", Consolas, monospace;
  font-size: 12px;
}

.learn-profile-mini {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
}

.learn-profile-mini strong {
  display: block;
  font-size: 13px;
}
.learn-profile-mini small {
  display: block;
  color: var(--learn-muted);
  font-size: 10px;
}

.learn-address-pill {
  justify-self: center;
  min-width: 0;
  width: min(520px, 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #e6e6e6;
  font-size: 13px;
}