:root {
  --bg: #0b0d12;
  --panel: #12151c;
  --panel-alt: #171b24;
  --border: #262b36;
  --text: #e6e8ee;
  --text-dim: #8b93a3;
  --accent: #5eb4ff;
  --accent-dim: #2c5c85;
  --danger: #e0616b;
  --radius: 3px; /* sleek/near-square look — applies to every rounded box in the app except true circles (border-radius: 50%) */
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

#app {
  display: grid;
  grid-template-columns: 320px 1fr;
  grid-template-rows: auto 1fr;
  height: 100vh;
}

#top-bar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

#top-bar h1 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
  white-space: nowrap;
}

#top-bar h1 .brand-primary { font-weight: 500; }
#top-bar h1 .brand-accent { color: var(--accent); font-weight: 700; }
#top-bar h1 .brand-dot { color: #f2b134; font-weight: 700; }
#top-bar h1 .brand-icon { width: 28px; height: 28px; margin-right: 8px; vertical-align: middle; }

#view-tabs { display: flex; gap: 4px; }

.view-tab {
  padding: 8px 14px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
}

.view-tab:hover { border-color: var(--accent-dim); color: var(--text); }
.view-tab.active { border-color: var(--accent); color: var(--accent); }

#search-panel { position: relative; flex: 1; max-width: 480px; }

#reset-graph-button {
  padding: 8px 14px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
}

#reset-graph-button:hover { border-color: var(--danger); color: var(--danger); }
#reset-graph-button.hidden { display: none; }

#help-button {
  flex: 0 0 auto;
  margin-left: auto;
  width: 33px;
  height: 33px;
  padding: 0;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

#help-button:hover { border-color: var(--accent-dim); color: var(--accent); }

#search-input {
  width: 100%;
  padding: 8px 12px;
  background: var(--panel-alt);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
}

#search-input:focus { outline: none; border-color: var(--accent-dim); }

.dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  margin: 0;
  padding: 4px;
  list-style: none;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-height: 320px;
  overflow-y: auto;
  z-index: 10;
}

.dropdown.hidden { display: none; }

.dropdown li {
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: pointer;
}

.dropdown li:hover { background: var(--accent-dim); }

.dropdown .track-title { font-weight: 500; }
.dropdown .track-artist { color: var(--text-dim); font-size: 12px; }

.dropdown .dropdown-error { color: var(--danger); cursor: default; font-size: 12px; }

.dropdown .dropdown-manual-add .track-title { color: var(--accent); }
.dropdown .dropdown-error:hover { background: none; }

#sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

#sidebar h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin: 0 0 8px;
}

/* Shared box treatment for Pinned Tracks and Most Similar To Pinned — same
   background/border/radius/padding so the two read as matching containers. */
.sidebar-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
}

#seed-tracks-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }

#seed-tracks-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: rgba(94,180,255,0.1);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius);
  font-size: 13px;
  cursor: pointer;
}

#seed-tracks-list li:hover { border-color: var(--accent); }

#seed-tracks-list img {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--accent);
  flex-shrink: 0;
  background: var(--bg);
}

#seed-tracks-list .seed-text { flex: 1; overflow: hidden; }
#seed-tracks-list .seed-title { font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#seed-tracks-list .seed-meta { color: var(--text-dim); font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

#seed-tracks-list .remove-seed {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  flex-shrink: 0;
}

#seed-tracks-list .remove-seed:hover { color: var(--danger); }

/* Absolutely positioned against #settings-sheet (its nearest positioned
   ancestor) rather than the viewport, so it pokes up above the sheet's own
   top edge and translates up/down together with it — when the sheet is
   translated fully off-screen, its top edge sits at the viewport's bottom
   edge, which is exactly where this tab needs to be to stay visible. */
#settings-pull-tab {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -100%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 22px;
  padding: 0;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
}

#settings-pull-tab:hover { color: var(--accent); border-color: var(--accent-dim); }

/* Transform-only show/hide (not display:none) so the sheet keeps sliding in
   from below rather than popping, and the pull tab (a child, see above)
   stays visible/clickable while the sheet itself is off-screen. */
#settings-sheet {
  position: fixed;
  bottom: 0;
  left: 50%;
  z-index: 30;
  width: min(94vw, 1000px);
  transform: translate(-50%, 100%);
  transition: transform 0.22s ease;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 8px 12px;
  box-shadow: 0 -8px 24px rgba(0,0,0,0.4);
}

#settings-sheet.open { transform: translate(-50%, 0); }

#settings-sheet-content {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.sheet-group { flex: 1 1 auto; min-width: 0; }

/* Fixed height (rather than letting content size it) so "Discover settings"
   — plain text — lines up with "Graph options" — text plus a bordered Reset
   button, which is taller than a text line on its own. */
.sheet-group h2 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 18px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin: 0 0 4px;
}

.sheet-group h2 button {
  padding: 2px 8px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 10px;
  text-transform: none;
  letter-spacing: normal;
}

.sheet-group h2 button:hover { border-color: var(--accent-dim); color: var(--accent); }

.sheet-divider {
  align-self: stretch;
  width: 1px;
  background: rgba(230, 232, 238, 0.18);
}

#settings-sheet .settings-row {
  display: flex;
  gap: 8px;
}

#settings-sheet label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 68px;
  font-size: 10px;
  color: var(--text-dim);
}

#settings-sheet input[type="range"] { width: 100%; }

.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text-dim);
  font-size: 9px;
  cursor: help;
}

/* Positioned in JS via getBoundingClientRect — `position: fixed` so it's
   never clipped by #sidebar's overflow-y: auto, unlike an ::after popup would be. */
.info-tooltip {
  position: fixed;
  max-width: 240px;
  padding: 8px 10px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 11px;
  line-height: 1.4;
  z-index: 1000;
  pointer-events: none;
}

#discover-button {
  width: 100%;
  padding: 8px;
  margin-top: 4px;
  background: var(--accent-dim);
  border: none;
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  font-weight: 500;
}

#discover-button:hover { background: var(--accent); color: #06131f; }
#discover-button:disabled { opacity: 0.5; cursor: not-allowed; }

#discover-progress-overlay {
  position: absolute;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  color: var(--text-dim);
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

#discover-progress-overlay.hidden { display: none; }

.discover-progress-spinner {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: discover-spin 0.8s linear infinite;
}

@keyframes discover-spin { to { transform: rotate(360deg); } }

.discover-progress-text { white-space: nowrap; }

.discover-progress-bar {
  width: 120px;
  height: 4px;
  flex-shrink: 0;
  background: var(--panel-alt);
  border-radius: var(--radius);
  overflow: hidden;
}

.discover-progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.2s ease;
}

#discover-progress-overlay.indeterminate .discover-progress-fill {
  width: 30% !important;
  animation: discover-pulse 1.2s ease-in-out infinite;
}

@keyframes discover-pulse {
  0% { margin-left: 0%; }
  50% { margin-left: 70%; }
  100% { margin-left: 0%; }
}

#top-similar-panel {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

#top-similar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-color: var(--border) transparent; /* Firefox */
  scrollbar-width: thin;
}

#top-similar-list::-webkit-scrollbar { width: 8px; }
#top-similar-list::-webkit-scrollbar-track { background: transparent; }
#top-similar-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: var(--radius); }
#top-similar-list::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

#top-similar-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
  cursor: pointer;
}

#top-similar-list li:hover { border-color: var(--accent-dim); }

#top-similar-list img {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
  background: var(--bg);
}

#top-similar-list .top-similar-text { overflow: hidden; }
#top-similar-list .top-similar-title { font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#top-similar-list .top-similar-meta { color: var(--text-dim); font-size: 11px; }
#top-similar-list .top-similar-views { color: var(--text-dim); font-size: 10px; font-weight: 700; }

#graph-container {
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

#graph-container.hidden, #sidebar.hidden { display: none; }

#library-container {
  grid-column: 1 / -1;
  grid-row: 2;
  position: relative;
  overflow: hidden;
  background: var(--bg);
  display: flex;
  flex-direction: column;
}

/* visibility, not display:none — the library graph is now constructed
   eagerly at boot (see main.js) so its force-graph simulation has already
   settled by the time the tab is actually opened; display:none would
   collapse this container to 0x0 at construction time, which is exactly
   what force-graph needs real dimensions for. visibility:hidden keeps the
   layout box (and thus clientWidth/clientHeight) intact while still
   painting nothing and blocking pointer events. */
#library-container.hidden { visibility: hidden; }

.library-graph-controls {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  /* column-gap must clear each thumb's own overflow past its slider's box
     edge (thumbs are wider than the track and centered on 0%/100%, so they
     hang 8px out past each side) or adjacent thumbs visually touch/overlap
     — a 16px gap left zero clearance between them. */
  column-gap: 40px;
  row-gap: 8px;
  padding: 6px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-dim);
}

.library-graph-controls label { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
/* margin: 0 strips the UA-default 2px margin on <input type="range">, which
   otherwise shifts it down relative to the custom sliders (which have no
   margin) and throws off the vertical alignment across the row. */
.library-graph-controls input[type="range"] { width: 160px; margin: 0; }

.library-graph-status { display: flex; flex-direction: column; gap: 2px; }

/* Same fixed-width-box technique as .range-slider-value — always "X of Y
   tracks" (never "585 tracks" alone) specifically so this width stays
   constant as the match count changes; this is now the leftmost element in
   the row, so letting it size to content would shove every slider after it
   back and forth. Sized for up to 4-digit counts ("9999 of 9999 tracks"). */
.library-graph-status-line {
  min-width: 12ch;
  font-variant-numeric: tabular-nums;
}

.library-graph-divider {
  align-self: stretch;
  width: 1px;
  background: var(--border);
}

.range-slider-field { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; white-space: nowrap; }

/* Reserves a fixed-width box for the changing "90 – 180"-style text so
   digit-count changes (e.g. "90" -> "132") don't reflow every slider field
   to its right — width is fixed regardless of content, only the text inside
   changes. tabular-nums keeps individual digits from jittering horizontally
   within that box as they change. */
.range-slider-value {
  display: inline-block;
  /* Must exceed the widest realistic content ("132 – 180", "999 – 2.2B") or
     it does nothing — a min-width narrower than the actual text still lets
     the box grow/shrink with it, which is exactly the jitter this is meant
     to prevent (e.g. BPM going from the 2-digit "90" to the 3-digit "132"
     widened this box and shoved every slider field to its right over). */
  min-width: 11ch;
  font-variant-numeric: tabular-nums;
}

/* Colors/sizing intentionally match the "Min similarity" native
   <input type="range">'s unstyled browser-default look (Chrome's own
   default range-input colors, not this app's --accent/--border theme) —
   sampled directly from its rendered pixels so the custom dual-thumb
   sliders read as the same control family, not a different widget. */
.range-slider {
  --range-slider-width: 160px;
  width: var(--range-slider-width);
  /* Matches the native <input type="range">'s own rendered box height (its
     thin track sits vertically centered inside that, same as here) — without
     this, this element collapses to the track's own 6px height and its
     thumb ends up ~5px higher than the native slider's, visibly misaligned
     across the row. */
  height: 16px;
  position: relative;
}

.range-slider-track {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  height: 6px;
  border-radius: 3px;
  background: #efefef;
  touch-action: none;
}

.range-slider-fill {
  position: absolute;
  top: 0;
  height: 100%;
  border-radius: 3px;
  background: #0075ff;
}

.range-slider-thumb {
  position: absolute;
  top: 50%;
  width: 16px;
  height: 16px;
  margin-left: -8px;
  border-radius: 50%;
  background: #0075ff;
  transform: translateY(-50%);
  cursor: pointer;
}

.range-slider-thumb:focus-visible {
  outline: 2px solid #0075ff;
  outline-offset: 2px;
}

.range-slider-disabled {
  opacity: 0.4;
}

.range-slider-disabled .range-slider-thumb {
  cursor: default;
}

.library-graph-canvas { flex: 1 1 auto; position: relative; overflow: hidden; }

.node-tooltip {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 10px;
  font-size: 12px;
  color: var(--text);
}

.hint { font-size: 12px; color: var(--text-dim); margin: 0 0 10px; }

#node-detail-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  width: 320px;
  background: var(--panel-alt);
  border-left: 1px solid var(--border);
  padding: 16px;
  padding-top: 40px;
  overflow-y: auto;
  box-shadow: -8px 0 24px rgba(0,0,0,0.4);
}

#node-detail-panel.hidden { display: none; }

#library-node-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  width: 320px;
  background: var(--panel-alt);
  border-left: 1px solid var(--border);
  padding: 16px;
  padding-top: 40px;
  overflow-y: auto;
  box-shadow: -8px 0 24px rgba(0,0,0,0.4);
}

#library-node-panel.hidden { display: none; }

#library-node-panel .popup-add-to-workspace {
  width: 100%;
  margin-bottom: 12px;
  padding: 8px 12px;
  background: none;
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius);
  color: var(--accent);
  cursor: pointer;
  font-size: 13px;
}

#library-node-panel .popup-add-to-workspace:hover { border-color: var(--accent); }

/* Discover is the most-used action in this panel — full width so it reads
   as the primary button, rather than sharing a row with Pin/View in library. */
#node-detail-panel .popup-discover { width: 100%; margin-bottom: 6px; font-weight: 700; }

/* Secondary/outlined look for the row below Discover, which is now the one
   primary/filled action in this panel. .popup-pin-active (below) still wins
   out over this when the track is actually pinned. */
#node-detail-panel .popup-pin, #node-detail-panel .popup-view-in-library {
  background: none;
  border: 1px solid var(--accent-dim);
  color: var(--accent);
}
#node-detail-panel .popup-pin:hover, #node-detail-panel .popup-view-in-library:hover { background: none; border-color: var(--accent); color: var(--accent); }

#node-detail-panel .popup-header-row, #library-node-panel .popup-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}
#node-detail-panel .popup-header-text, #library-node-panel .popup-header-text { flex: 1 1 auto; min-width: 0; }

#node-detail-panel .popup-title, #library-node-panel .popup-title { font-weight: 600; margin-bottom: 2px; }
#node-detail-panel .popup-artist, #library-node-panel .popup-artist { color: var(--text-dim); font-size: 12px; }

#node-detail-panel .popup-external-link, #library-node-panel .popup-external-link { display: block; margin-top: 2px; font-size: 10px; color: var(--accent); text-decoration: none; }
#node-detail-panel .popup-external-link:hover, #library-node-panel .popup-external-link:hover { text-decoration: underline; }

#node-detail-panel .popup-viewcount, #library-node-panel .popup-viewcount {
  flex: 0 0 25%;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}
#node-detail-panel .popup-viewcount-value, #library-node-panel .popup-viewcount-value { font-size: 15px; font-weight: 700; color: var(--accent); line-height: 1.3; }
#node-detail-panel .popup-viewcount-label, #library-node-panel .popup-viewcount-label { font-size: 10px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; }

#node-detail-panel .popup-chips, #library-node-panel .popup-chips { display: flex; gap: 6px; margin-bottom: 12px; }
#node-detail-panel .popup-chip, #library-node-panel .popup-chip {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 4px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
#node-detail-panel .popup-chip-value, #library-node-panel .popup-chip-value { font-size: 13px; font-weight: 600; color: var(--text); }
#node-detail-panel .popup-chip-label, #library-node-panel .popup-chip-label { font-size: 9px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.04em; }

#node-detail-panel .popup-section, #library-node-panel .popup-section { margin-bottom: 12px; }
#node-detail-panel .popup-section-title, #library-node-panel .popup-section-title { font-size: 10px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-dim); margin-bottom: 6px; }

#node-detail-panel .popup-relation-list, #library-node-panel .popup-relation-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
#node-detail-panel .popup-relation-list-scroll, #library-node-panel .popup-relation-list-scroll {
  max-height: 320px;
  overflow-y: auto;
  scrollbar-color: var(--border) transparent;
  scrollbar-width: thin;
}
#node-detail-panel .popup-relation-list-scroll::-webkit-scrollbar, #library-node-panel .popup-relation-list-scroll::-webkit-scrollbar { width: 6px; }
#node-detail-panel .popup-relation-list-scroll::-webkit-scrollbar-track, #library-node-panel .popup-relation-list-scroll::-webkit-scrollbar-track { background: transparent; }
#node-detail-panel .popup-relation-list-scroll::-webkit-scrollbar-thumb, #library-node-panel .popup-relation-list-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: var(--radius); }

#node-detail-panel .popup-relation-item, #library-node-panel .popup-relation-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}
#node-detail-panel .popup-relation-item:hover, #library-node-panel .popup-relation-item:hover { border-color: var(--accent-dim); }

#node-detail-panel .popup-relation-item img, #library-node-panel .popup-relation-item img,
#node-detail-panel .popup-relation-thumb-fallback, #library-node-panel .popup-relation-thumb-fallback {
  width: 34px;
  height: 34px;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
  background: var(--bg);
}

#node-detail-panel .popup-relation-text, #library-node-panel .popup-relation-text { flex: 1; overflow: hidden; }
#node-detail-panel .popup-relation-title, #library-node-panel .popup-relation-title { font-size: 11px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#node-detail-panel .popup-relation-meta, #library-node-panel .popup-relation-meta { font-size: 10px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#node-detail-panel .popup-relation-scores, #library-node-panel .popup-relation-scores { font-size: 10px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 1px; }
#node-detail-panel .popup-relation-score-nearfield, #library-node-panel .popup-relation-score-nearfield { color: var(--accent); font-weight: 600; }

/* Bigger standalone card for "Found via" — only ever 0-1 of these, so it can
   afford more room than the compact .popup-relation-item rows above. */
#node-detail-panel .popup-found-via-card, #library-node-panel .popup-found-via-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}
#node-detail-panel .popup-found-via-card:hover, #library-node-panel .popup-found-via-card:hover { border-color: var(--accent-dim); }

#node-detail-panel .popup-found-via-thumb, #library-node-panel .popup-found-via-thumb {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
  background: var(--bg);
}

#node-detail-panel .popup-found-via-text, #library-node-panel .popup-found-via-text { flex: 1; overflow: hidden; }
#node-detail-panel .popup-found-via-title, #library-node-panel .popup-found-via-title { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#node-detail-panel .popup-found-via-meta, #library-node-panel .popup-found-via-meta { font-size: 11px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 1px; }
/* Its own line, in accent color, so the ours-vs-cosine.club comparison is
   obvious at a glance rather than buried at the end of a dense meta line. */
#node-detail-panel .popup-found-via-cosine, #library-node-panel .popup-found-via-cosine { font-size: 11px; font-weight: 600; color: var(--accent); margin-top: 2px; }

#node-detail-panel .popup-link { display: block; font-size: 12px; color: var(--accent); text-decoration: none; margin-bottom: 4px; }
#node-detail-panel .popup-link:hover { text-decoration: underline; }
#node-detail-panel .popup-link:last-of-type { margin-bottom: 10px; }

#node-detail-panel .popup-icon-row, #library-node-panel .popup-icon-row { display: flex; align-items: center; justify-content: space-between; }
#node-detail-panel .popup-search-icons, #library-node-panel .popup-search-icons { display: flex; gap: 8px; }
#node-detail-panel .popup-search-icon, #library-node-panel .popup-search-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 10px;
  font-weight: 700;
  text-decoration: none;
}
#node-detail-panel .popup-search-icon:hover, #library-node-panel .popup-search-icon:hover { border-color: var(--accent); color: var(--accent); }
#node-detail-panel .popup-search-icon i, #library-node-panel .popup-search-icon i { font-size: 12px; }

#node-detail-panel .popup-delete {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  padding: 0;
  margin-left: auto;
  border-radius: 50%;
  background: rgba(224, 97, 107, 0.12);
  border: 1px solid rgba(224, 97, 107, 0.4);
  color: var(--danger);
}
#node-detail-panel .popup-delete:hover { background: var(--danger); border-color: var(--danger); color: var(--text); }
#node-detail-panel .popup-delete i { font-size: 14px; }

#node-detail-panel .popup-video, #library-node-panel .popup-video { margin-bottom: 10px; }

#node-detail-panel .mini-player, #library-node-panel .mini-player {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
}

#node-detail-panel .mini-player-iframe, #library-node-panel .mini-player-iframe { position: absolute; inset: 0; display: block; width: 100%; height: 100%; border: none; }

#node-detail-panel .mini-player-controls, #library-node-panel .mini-player-controls {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 26px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0));
}

#node-detail-panel .mini-player-toggle, #library-node-panel .mini-player-toggle {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 10px;
}
#node-detail-panel .mini-player-toggle:hover, #library-node-panel .mini-player-toggle:hover { background: var(--accent); color: #06131f; }
#node-detail-panel .mini-player-toggle i, #library-node-panel .mini-player-toggle i { font-size: 8px; }

#node-detail-panel .mini-player-scrub, #library-node-panel .mini-player-scrub {
  position: relative;
  flex: 1 1 auto;
  height: 4px;
  background: var(--panel-alt);
  border-radius: var(--radius);
  cursor: pointer;
  touch-action: none;
}
#node-detail-panel .mini-player-scrub-fill, #library-node-panel .mini-player-scrub-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 0%;
  background: var(--accent);
  border-radius: var(--radius);
  transition: width 0.2s ease;
}
#node-detail-panel .mini-player-scrub.dragging .mini-player-scrub-fill, #library-node-panel .mini-player-scrub.dragging .mini-player-scrub-fill { transition: none; }

#node-detail-panel .mini-player-time, #library-node-panel .mini-player-time {
  flex-shrink: 0;
  min-width: 26px;
  text-align: right;
  font-size: 10px;
  color: var(--text-dim);
  line-height: 1;
}

#node-detail-panel .popup-actions { display: flex; gap: 8px; margin-bottom: 12px; }

#node-detail-panel button {
  flex: 1;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--accent-dim);
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
}

#node-detail-panel button:hover { background: var(--accent); color: #06131f; }
#node-detail-panel button:disabled { opacity: 0.5; cursor: not-allowed; }

#node-detail-panel .popup-btn-icon, #library-node-panel .popup-btn-icon { margin-right: 6px; font-size: 11px; }

#node-detail-panel button.popup-close, #library-node-panel button.popup-close {
  position: absolute;
  top: 8px;
  right: 8px;
  background: none;
  border: none;
  flex: 0;
  width: auto;
  font-size: 17px;
  color: var(--text-dim);
}
#node-detail-panel button.popup-close:hover, #library-node-panel button.popup-close:hover { background: none; color: var(--danger); }

#node-detail-panel button.popup-pin-active { background: var(--accent); color: #06131f; }
#node-detail-panel button.popup-pin-active:hover { background: var(--danger); color: var(--text); }

#node-detail-panel button.popup-delete:hover { background: var(--danger); color: var(--text); }

#help-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
}

#help-modal-overlay.hidden { display: none; }

#help-modal {
  position: relative;
  width: min(90vw, 440px);
  max-height: 80vh;
  overflow-y: auto;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

#help-modal h2 { margin: 0 0 16px; font-size: 16px; }
#help-modal h3 { margin: 0 0 4px; font-size: 13px; color: var(--accent); }
#help-modal section + section { margin-top: 14px; }
#help-modal p { margin: 0; font-size: 13px; line-height: 1.5; color: var(--text-dim); }

#help-modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  font-size: 18px;
  color: var(--text-dim);
  cursor: pointer;
}

#help-modal-close:hover { color: var(--danger); }