/* Website-only side-panel structure. The desktop build concatenates
   game-board.css directly, so these rules intentionally live in a separate
   asset loaded only by the web Analysis and game-detail templates. */

body.game-board-page .history-column {
  --viewer-panel-row-height: 40px;
  container-type: inline-size;
}

body.game-board-page .viewer-panel-view,
body.game-board-page .game-rail-panel.viewer-panel-view,
body.game-board-page .annotation-rail.viewer-panel-view {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0;
  min-width: 0;
  min-height: 0;
  padding: 0;
  overflow: hidden;
}

body.game-board-page .viewer-panel-view[hidden],
body.game-board-page .game-rail-panel.viewer-panel-view[hidden],
body.game-board-page .annotation-rail.viewer-panel-view[hidden] {
  display: none;
}

body.game-board-page .game-rail-panel.viewer-panel-view,
body.game-board-page .annotation-rail.viewer-panel-view {
  grid-row: 2;
}

body.game-board-page .viewer-panel-body {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

body.game-board-page #game-share-rail-panel .viewer-panel-body {
  scrollbar-gutter: auto;
}

body.game-board-page .viewer-panel-footer {
  box-sizing: border-box;
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  min-width: 0;
  min-height: var(--viewer-panel-row-height);
  margin: 0;
  padding: 7px 10px;
  border-top: 1px solid rgba(var(--tint-rgb), 0.18);
  background: rgba(0, 0, 0, 0.16);
}

body.game-board-page .viewer-panel-footer:empty {
  display: none;
}

body.game-board-page .viewer-panel-row {
  box-sizing: border-box;
  display: grid;
  grid-template-columns: minmax(76px, 28%) minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  width: 100%;
  min-width: 0;
  min-height: var(--viewer-panel-row-height);
  margin: 0;
  padding: 7px 12px;
  border: 0;
  border-radius: 0;
  color: var(--data-secondary);
  font-family: 'Share Tech Mono', monospace;
  font-size: 13px;
  line-height: 1.35;
}

body.game-board-page .viewer-panel-rows > .viewer-panel-row:nth-child(even),
body.game-board-page .analysis-import-fields > .viewer-panel-row:nth-child(even),
body.game-board-page .annotation-rail-list > .viewer-panel-row:nth-child(even),
body.game-board-page .game-underboard-actions > .viewer-panel-row:nth-child(even),
body.game-board-page .game-underboard-actions > details:nth-child(even) > .viewer-panel-row {
  background: rgba(255, 255, 255, 0.035);
}

body.game-board-page .viewer-panel-row-label {
  min-width: 0;
  color: var(--muted);
  font-weight: 700;
  overflow-wrap: anywhere;
}

body.game-board-page .viewer-panel-row-value {
  min-width: 0;
  overflow-wrap: anywhere;
}

body.game-board-page .viewer-panel-row-meta {
  min-width: 0;
  color: var(--muted);
  font-size: 0.9em;
  letter-spacing: 0.8px;
  text-align: right;
  text-transform: uppercase;
  white-space: nowrap;
}

body.game-board-page #moves-history.viewer-panel-body {
  padding-top: 0;
}

body.game-board-page #moves-history .move-result {
  box-sizing: border-box;
  width: 100%;
}

body.game-board-page #moves-history .move-result-terminal {
  display: grid;
  place-items: center;
  min-height: var(--viewer-panel-row-height);
  padding: 6px 12px;
  text-align: center;
}

body.game-board-page #moves-history .move-result-pending {
  display: block;
  min-height: 0;
  padding: 8px 12px;
  text-align: left;
}

/* The game-info table is the reference row treatment. */
body.game-board-page .game-info-table.viewer-panel-rows {
  display: grid;
  flex: 1 0 auto;
  grid-auto-rows: minmax(48px, auto);
  overflow: visible;
  border: 0;
  background: transparent;
}

body.game-board-page .game-info-body {
  display: flex;
  flex-direction: column;
}

body.game-board-page .game-info-row.viewer-panel-row {
  grid-template-columns: minmax(76px, 28%) minmax(0, 1fr);
  min-height: 48px;
  padding: 9px 12px;
  color: var(--data-secondary);
  font-size: 14px;
}

body.game-board-page .game-info-row-date .game-info-value {
  color: var(--white);
  font-weight: 700;
  letter-spacing: 0.5px;
}

body.game-board-page .game-related-links {
  flex: 0 0 auto;
  margin: 0;
  padding: 12px;
  font-size: 12px;
}

/* Import is a title + scrollable rows + natural-width action footer. */
body.game-board-page .analysis-import-rail-content,
body.game-board-page .analysis-import-panel.analysis-import-rail-content {
  flex: 1 1 auto;
  min-height: 0;
  height: auto;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

body.game-board-page .analysis-import-rail-content form {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

body.game-board-page .analysis-import-fields {
  display: flex;
  flex-direction: column;
}

body.game-board-page .analysis-import-row {
  flex: 0 0 auto;
}

body.game-board-page .analysis-import-pgn-row {
  flex: 1 0 calc(var(--viewer-panel-row-height) * 4);
  align-items: stretch;
}

body.game-board-page .analysis-import-label.viewer-panel-row-label {
  display: flex;
  align-items: center;
  align-self: stretch;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: inherit;
  letter-spacing: 0;
  text-transform: none;
}

body.game-board-page .analysis-import-value {
  display: flex;
  flex-direction: column;
  align-self: stretch;
  justify-content: center;
}

body.game-board-page .analysis-game-link-input,
body.game-board-page .analysis-fen-input,
body.game-board-page .analysis-pgn-input {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(var(--tint-rgb), 0.3);
  border-radius: 2px;
  outline: 0;
  background: rgba(0, 0, 0, 0.38);
  color: var(--white);
}

body.game-board-page .analysis-game-link-input,
body.game-board-page .analysis-fen-input {
  min-height: 34px;
  padding: 6px 9px;
}

body.game-board-page .analysis-pgn-input {
  flex: 1;
  min-height: calc(var(--viewer-panel-row-height) * 3);
  padding: 8px 9px;
  resize: vertical;
}

body.game-board-page .analysis-game-link-input:focus-visible,
body.game-board-page .analysis-fen-input:focus-visible,
body.game-board-page .analysis-pgn-input:focus-visible,
body.game-board-page .game-share-fen input:focus-visible {
  border-color: var(--cyan);
  outline: 2px solid rgba(var(--cyan-rgb), 0.28);
  outline-offset: 1px;
  box-shadow: inset 0 0 18px rgba(var(--tint-rgb), 0.14);
}

body.game-board-page .analysis-game-link-status {
  margin: 3px 0 0;
}

body.game-board-page .analysis-import-actions.viewer-panel-footer {
  display: flex;
  grid-template-columns: none;
  justify-content: flex-end;
}

body.game-board-page .analysis-import-actions.viewer-panel-footer .btn-node {
  flex: 0 0 auto;
  width: auto;
  min-width: 0;
  padding-inline: 14px;
}

/* Share/export actions are the rows themselves: one aligned column pair and
   one click target, rather than a second button-grid language. */
body.game-board-page .game-share-fen.viewer-panel-row {
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch;
  gap: 4px;
  margin: 0;
  padding-block: 6px;
}

body.game-board-page .game-share-fen-field {
  grid-template-columns: minmax(0, 1fr) 32px;
}

body.game-board-page .game-share-fen input {
  height: 36px;
  padding: 6px 4px;
  border-color: rgba(var(--tint-rgb), 0.3);
  background: rgba(0, 0, 0, 0.38);
  font-family: 'Noto Sans', 'Segoe UI', system-ui, Roboto, Helvetica, Arial, sans-serif;
  font-size: 10.5px;
  letter-spacing: -0.25px;
  white-space: nowrap;
}

body.game-board-page .game-share-fen-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  min-width: 32px;
  height: 36px;
  padding: 0;
}

body.game-board-page .game-share-fen-copy svg {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
}

body.game-board-page .game-underboard-actions {
  display: block;
}

body.game-board-page .game-underboard-actions > * {
  width: 100%;
  margin: 0;
}

body.game-board-page .game-share-action.viewer-panel-action-row {
  grid-template-columns: minmax(0, 1fr) max-content;
  justify-content: initial;
  min-height: var(--viewer-panel-row-height);
  padding: 7px 12px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: var(--data-secondary);
  text-align: left;
  text-decoration: none;
}

body.game-board-page .game-share-action.viewer-panel-action-row:hover,
body.game-board-page .game-share-action.viewer-panel-action-row:focus-visible,
body.game-board-page .annotation-rail-note.viewer-panel-row:hover,
body.game-board-page .annotation-rail-note.viewer-panel-row:focus-visible {
  outline: 0;
  background: rgba(var(--tint-rgb), 0.1);
  box-shadow: inset 2px 0 0 var(--cyan);
  color: var(--white);
}

body.game-board-page .game-share-action.viewer-panel-action-row .viewer-panel-row-label {
  color: inherit;
}

body.game-board-page .game-open-notebook-status {
  padding: 8px 12px;
  border-top: 1px solid rgba(var(--tint-rgb), 0.18);
  color: var(--data-secondary);
  font-size: 0.78rem;
  line-height: 1.45;
}

body.game-board-page .game-open-notebook-status span,
body.game-board-page .game-open-notebook-status a {
  display: block;
}

body.game-board-page .game-open-notebook-status a {
  margin-top: 4px;
  color: var(--cyan);
}

/* An annotated-book playlist is a compact table of contents. Its book title,
   filter, scrolling entries, and book navigation own four distinct rows; the
   separate move-navigation rail below remains untouched. */
body.game-board-page .game-playlist-title {
  box-sizing: border-box;
  display: grid;
  flex: 0 0 auto;
  gap: 4px;
  min-width: 0;
  min-height: calc(var(--viewer-panel-row-height) + 20px);
  padding-block: 9px;
  padding-inline: 12px;
  border-bottom: 1px solid rgba(var(--tint-rgb), 0.18);
  background: rgba(0, 0, 0, 0.22);
}

body.game-board-page .game-playlist-title h2 {
  color: var(--white);
  font-size: 0.78rem;
  line-height: 1.35;
  letter-spacing: 1px;
  overflow-wrap: anywhere;
  text-transform: none;
  white-space: normal;
}

body.game-board-page .game-playlist-title > span {
  color: var(--muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.4px;
}

body.game-board-page .game-playlist-filter {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 32px;
  gap: 8px;
  flex: 0 0 auto;
  align-items: center;
  min-width: 0;
  min-height: 46px;
  padding: 6px 12px;
  border-bottom: 1px solid rgba(var(--tint-rgb), 0.16);
  background: rgba(255, 255, 255, 0.025);
}

body.game-board-page .game-playlist-filter .game-playlist-autoplay-toggle {
  width: 32px;
  min-width: 32px;
  height: 34px;
  min-height: 34px;
  margin: 0;
}

body.game-board-page .game-playlist-filter-field {
  box-sizing: border-box;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  width: 100%;
  min-width: 0;
  height: 34px;
  border: 1px solid rgba(var(--tint-rgb), 0.3);
  border-radius: 2px;
  background: rgba(0, 0, 0, 0.38);
}

body.game-board-page .game-playlist-filter-glyph {
  padding-left: 10px;
  color: var(--muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 16px;
  pointer-events: none;
}

body.game-board-page .game-playlist-filter input {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  height: 32px;
  padding: 6px 10px;
  border: 0;
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--white);
  font-family: 'Share Tech Mono', monospace;
}

body.game-board-page .game-playlist-filter-field:focus-within {
  border-color: var(--cyan);
  outline: 2px solid rgba(var(--cyan-rgb), 0.28);
  outline-offset: 1px;
  box-shadow: inset 0 0 18px rgba(var(--tint-rgb), 0.14);
}

body.game-board-page .game-playlist-body {
  padding: 0;
}

body.game-board-page .game-playlist-games {
  overflow: visible;
}

body.game-board-page .game-playlist-row {
  display: grid;
  min-height: 44px;
  border-bottom: 1px solid rgba(var(--tint-rgb), 0.1);
}

body.game-board-page .game-playlist-row:nth-child(even) {
  background: rgba(255, 255, 255, 0.025);
}

body.game-board-page .game-playlist-row > .game-playlist-link,
body.game-board-page .game-playlist-row > .game-playlist-menu {
  grid-area: 1 / 1;
}

body.game-board-page .game-playlist-row > .game-playlist-link.viewer-panel-row {
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  min-height: 44px;
  padding: 5px 12px 5px 8px;
}

body.game-board-page .game-playlist-row > .game-playlist-menu {
  align-self: start;
  justify-self: end;
  margin: 4px;
  z-index: 1;
}

body.game-board-page .game-playlist-number.viewer-panel-row-label {
  align-self: center;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 400;
  text-align: right;
}

body.game-board-page .game-playlist-game {
  display: block;
  overflow: hidden;
}

body.game-board-page .game-playlist-game > strong,
body.game-board-page .game-playlist-meta {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

body.game-board-page .game-playlist-game > strong {
  font-size: 0.76rem;
  font-weight: 500;
  line-height: 1.35;
}

body.game-board-page .game-playlist-player {
  color: var(--cyan);
}

body.game-board-page .game-playlist-vs,
body.game-board-page .game-playlist-date {
  color: var(--muted);
}

body.game-board-page .game-playlist-result {
  color: var(--chrome);
}

body.game-board-page .game-playlist-opening,
body.game-board-page .game-playlist-meta .sep {
  color: var(--gold);
}

body.game-board-page .game-playlist-meta {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.64rem;
  line-height: 1.25;
}

body.game-board-page .game-playlist-games .game-playlist-load-more {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: var(--viewer-panel-row-height);
  padding: 7px 12px;
  border-bottom: 1px solid rgba(var(--tint-rgb), 0.1);
  background: transparent;
  color: var(--muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.4px;
  text-decoration: none;
}

body.game-board-page .game-playlist-games .game-playlist-load-more:hover,
body.game-board-page .game-playlist-games .game-playlist-load-more:focus-visible {
  outline: 0;
  background: rgba(var(--tint-rgb), 0.08);
  box-shadow: inset 2px 0 0 var(--cyan);
  color: var(--cyan);
}

body.game-board-page .game-playlist-footer {
  flex-wrap: nowrap;
  align-items: center;
  gap: 10px;
  min-height: var(--viewer-panel-row-height);
  padding-block: 5px;
}

body.game-board-page .game-playlist-footer-position {
  flex: 0 1 auto;
  min-width: 0;
  color: var(--muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.66rem;
  white-space: nowrap;
}

body.game-board-page .game-playlist-book-navigation {
  display: flex;
  flex: 0 1 auto;
  align-items: center;
  gap: 12px;
  min-width: 0;
  margin-left: auto;
}

body.game-board-page .game-playlist-book-navigation a,
body.game-board-page .game-playlist-book-navigation span {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.68rem;
  text-decoration: none;
  white-space: nowrap;
}

body.game-board-page .game-playlist-book-navigation span {
  color: var(--muted);
}

body.game-board-page .game-playlist-book-navigation a:hover,
body.game-board-page .game-playlist-book-navigation a:focus-visible {
  color: var(--white);
  outline: 1px solid var(--cyan);
  outline-offset: 3px;
}

/* Annotation notes are the long-form instance of the same label/value row. */
body.game-board-page .annotation-rail-body {
  padding: 0;
}

body.game-board-page .annotation-rail-intro {
  margin: 0;
  padding: 12px;
  border-bottom: 1px solid rgba(var(--tint-rgb), 0.16);
}

body.game-board-page .annotation-rail-note.viewer-panel-row {
  grid-template-columns: minmax(76px, 28%) minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  padding: 9px 12px;
  border-top: 0;
  border-bottom: 1px solid rgba(var(--tint-rgb), 0.12);
}

body.game-board-page .annotation-rail-note.viewer-panel-row.current {
  border-color: rgba(var(--tint-rgb), 0.55);
}

body.game-board-page .annotation-rail-source.viewer-panel-footer {
  display: block;
  min-height: var(--viewer-panel-row-height);
  padding: 9px 12px;
}

/* Text identity wins space over toolbar chrome. View/action icons may scroll;
   the separate preference control stays reachable at the edge. */
body.game-board-page .analysis-header {
  justify-content: flex-start;
  gap: 8px;
}

body.game-board-page .analysis-title {
  flex: 1 1 92px;
  min-width: 58px;
}

body.game-board-page .analysis-status {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: clip;
}

body.game-board-page .analysis-panel.engine-off .analysis-title {
  flex-direction: row;
  align-items: center;
}

body.game-board-page .analysis-panel.engine-off .engine-summary {
  display: none;
}

body.game-board-page .history-column:has(.viewer-panel-switcher):not(:has(.analysis-panel.engine-active)) {
  --engine-panel-height: 52px;
}

body.game-board-page .viewer-panel-switcher {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 4px;
  min-width: 0;
  min-height: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

body.game-board-page .analysis-header:has(.viewer-panel-switcher) {
  gap: 4px;
}

body.game-board-page .viewer-panel-switcher > * {
  flex: 0 0 32px;
}

body.game-board-page .viewer-panel-switcher .engine-bookmark-control,
body.game-board-page .viewer-panel-switcher .save-popover-shell {
  width: 32px;
  height: 32px;
}

body.game-board-page .viewer-panel-switcher .position-action {
  width: 32px;
  min-width: 32px;
  height: 32px;
  min-height: 32px;
  padding: 0;
}

body.game-board-page .move-navigation:has(.annotation-rail-nav-toggle) {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

body.game-board-page .annotation-rail-nav-toggle svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

body.game-board-page .analysis-panel:has(.viewer-panel-switcher) .engine-controls-priority {
  flex: 0 0 32px;
  min-width: 32px;
  overflow: visible;
}

body.game-board-page .analysis-panel:has(.viewer-panel-switcher) .engine-toolbar-scroll {
  display: none;
}

body.game-board-page .engine-controls-priority {
  display: flex;
  flex: 0 1 190px;
  gap: 4px;
  min-width: 40px;
  overflow: hidden;
}

/* Analysis owns a compact action rail rather than the five-switch game-detail
   toolbar. Let its copy/replay/import icons size to their content so settings
   follows them directly instead of being stranded at the far edge. */
body.game-board-page .analysis-board-shell .engine-controls-priority {
  flex: 0 1 auto;
  min-width: 36px;
}

body.game-board-page .analysis-board-shell .engine-toolbar-scroll {
  flex: 0 1 auto;
}

body.game-board-page .engine-toolbar-scroll {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  gap: 4px;
  min-width: 0;
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-inline: contain;
  scrollbar-width: none;
}

body.game-board-page .engine-toolbar-scroll::-webkit-scrollbar {
  display: none;
}

body.game-board-page .engine-toolbar-scroll > * {
  flex: 0 0 32px;
}

body.game-board-page .engine-preference-controls {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
}

body.game-board-page .game-viewer-settings-portal {
  display: contents !important;
}

body.game-board-page .game-viewer-settings-portal .engine-panel-settings-popover {
  position: fixed;
  z-index: 2000;
  max-width: calc(100vw - 20px);
  max-height: calc(100svh - 20px);
  overflow-x: hidden;
  overflow-y: auto;
}

@container (max-width: 340px) {
  body.game-board-page .analysis-header {
    gap: 3px;
    padding-inline: 6px;
  }

  body.game-board-page .engine-power {
    min-width: 74px;
    padding-inline: 8px;
  }

  body.game-board-page .analysis-title {
    min-width: 0;
  }

  body.game-board-page .viewer-panel-switcher {
    gap: 2px;
  }

  body.game-board-page .game-share-fen.viewer-panel-row {
    padding-inline: 7px;
  }

  body.game-board-page .game-share-fen input {
    font-size: 7.5px;
    letter-spacing: -0.18px;
  }
}

@container (max-width: 300px) {
  body.game-board-page .viewer-panel-row-meta,
  body.game-board-page .game-playlist-game > .entity-meta {
    display: none;
  }

  body.game-board-page .viewer-panel-action-row {
    grid-template-columns: minmax(0, 1fr);
  }

}

@media (max-width: 900px) {
  body.game-board-page .history-column:has(.viewer-panel-switcher):not(:has(.analysis-panel.engine-active)) {
    --engine-panel-height: 44px;
  }

  body.game-board-page .game-rail-panel.viewer-panel-view,
  body.game-board-page .annotation-rail.viewer-panel-view {
    grid-row: 3;
  }
}

@media (max-width: 720px) {
  body.game-board-page .game-playlist-title,
  body.game-board-page .viewer-panel-footer,
  body.game-board-page .viewer-panel-row {
    padding-inline: 10px;
  }

  body.game-board-page .analysis-title {
    flex-basis: 78px;
  }

  body.game-board-page .engine-controls-priority {
    flex-basis: 150px;
  }

  body.game-board-page .analysis-panel:has(.viewer-panel-switcher) .engine-controls-priority {
    flex-basis: 32px;
  }
}

@media (max-width: 480px) {
  body.game-board-page .history-column:has(.viewer-panel-switcher):not(:has(.analysis-panel.engine-active)) {
    --engine-panel-height: 42px;
  }
}