/* Auditura desktop visual language — October 2026
 * The mobile player's understated lines, spacing and accent-driven active
 * states, applied ONLY to the native desktop and desktop-browser layouts.
 * No structural positioning, data/streaming logic, album art or audio-badge
 * colours are changed here.  Preserve all the existing desktop controls.
 *
 * Native desktop: <html> has NO data-layout attribute.
 * Web desktop:    <html data-layout="desktop">.
 * Web mobile:     portrait/landscape/square => excluded intentionally.
 */

/* Shared desktop rhythm; honour current themes and custom accent colour. */
:is(html[data-layout="desktop"],html:not([data-layout])) {
  --desktop-line: var(--border-subtle);
  --desktop-active-line: 3px;
  --desktop-control-radius: 8px;
  --desktop-rail-gap: 12px;
}

/* MAIN CHROME: hierarchy without pill-shaped surfaces */
:is(html[data-layout="desktop"],html:not([data-layout])) .top-chrome {
  border-bottom: 1px solid var(--desktop-line);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .header {
  gap: 22px;
  padding-block: 17px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .search-bar {
  background: var(--surface-card);
  border: 1px solid var(--desktop-line);
  border-radius: var(--desktop-control-radius);
  padding: 9px 14px;
  transition: border-color 160ms ease, background 160ms ease;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .search-bar:focus-within {
  border-color: var(--accent-primary);
  background: var(--surface-elevated);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .search-results {
  border-radius: var(--desktop-control-radius);
}

/* LIBRARY TAB STRIP: mobile-style active underline, no filled pills.
 * Do not change flex-wrap or sizing: all existing desktop categories remain. */
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tabs {
  gap: 10px;
  padding: 0 24px;
  border-bottom: 0;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tabs-list {
  gap: 6px;
  row-gap: 0;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tabs-section {
  gap: 6px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tab,
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tabs-foundational .view-tab {
  position: relative;
  min-height: 42px;
  padding: 12px 14px 13px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  box-shadow: none;
  transition: color 150ms ease, background 150ms ease;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tab:hover,
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tabs-foundational .view-tab:hover {
  background: transparent;
  color: var(--text-primary);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tab.active,
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tabs-foundational .view-tab.active {
  color: var(--accent-primary);
  background: transparent;
  border: 0;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tab::after {
  content: '';
  position: absolute;
  height: var(--desktop-active-line);
  left: 12px;
  right: 12px;
  bottom: 0;
  border-radius: 3px 3px 0 0;
  background: transparent;
  pointer-events: none;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .view-tab.active::after {
  background: var(--accent-primary);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .view-settings-btn {
  border: 0;
  border-radius: 6px;
  background: transparent;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .view-settings-btn:hover {
  border: 0;
  background: var(--overlay-hover);
}

/* LEFT RAIL: same desktop sections and buttons, flatter active navigation. */
:is(html[data-layout="desktop"],html:not([data-layout])) .sidebar {
  border-right: 1px solid var(--desktop-line);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .nav {
  gap: 1px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .nav-item {
  position: relative;
  border-radius: 4px;
  padding: 11px 14px 11px 16px;
  gap: 12px;
  background: transparent;
  transition: color 150ms ease, background 150ms ease;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .nav-item:hover {
  background: var(--overlay-hover);
  color: var(--text-primary);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .nav-item.active {
  background: transparent;
  color: var(--accent-primary);
  font-weight: 650;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 21%;
  bottom: 21%;
  width: var(--desktop-active-line);
  background: var(--accent-primary);
  border-radius: 0 3px 3px 0;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .nav-sep {
  margin: 10px 8px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .devices-header,
:is(html[data-layout="desktop"],html:not([data-layout])) .playlists-header {
  border-bottom: 1px solid var(--desktop-line);
  padding-bottom: 9px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .sidebar-btn {
  border: 1px solid var(--desktop-line);
  border-radius: var(--desktop-control-radius);
  background: var(--surface-card);
  color: var(--text-primary);
  font-weight: 600;
  transform: none;
  box-shadow: none;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .sidebar-btn:hover {
  filter: none;
  transform: none;
  background: var(--surface-card-hover);
  border-color: var(--border-strong);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .sidebar-btn.sidebar-btn-accent {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .sidebar-btn.sidebar-btn-subtle {
  background: transparent;
  border-color: var(--desktop-line);
  color: var(--text-secondary);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .sidebar-btn.sidebar-btn-subtle:hover {
  color: var(--accent-primary);
}

/* NOW PLAYING: alignment and clear separation, not a different composition. */
:is(html[data-layout="desktop"],html:not([data-layout])) .queue-now-playing {
  column-gap: 28px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .queue-now-playing-queue-col .right-panel-queue {
  padding-inline: 18px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .np-queue-header {
  padding: 0 8px 9px;
  border-bottom: 1px solid var(--desktop-line);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue {
  gap: 9px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .rpq-tabs {
  display: flex;
  gap: 0;
  padding: 0;
  border-bottom: 1px solid var(--desktop-line);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .rpq-tab {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  padding: 11px 8px 13px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 650;
  text-align: center;
  box-shadow: none;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .rpq-tab:hover {
  background: transparent;
  color: var(--text-primary);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .rpq-tab.active {
  background: transparent;
  color: var(--accent-primary);
  border: 0;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .rpq-tab::after {
  content: '';
  position: absolute;
  left: 14%;
  right: 14%;
  bottom: -1px;
  height: var(--desktop-active-line);
  border-radius: 3px 3px 0 0;
  background: transparent;
  pointer-events: none;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .rpq-tab.active::after {
  background: var(--accent-primary);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .rpq-list > * {
  margin-bottom: 2px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .queue-song-item,
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .queue-album-header,
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .queue-album-track {
  border-radius: 3px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .queue-song-item:hover,
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .queue-album-header:hover {
  background: var(--overlay-hover);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .right-panel-queue .queue-album-group {
  border-radius: 6px;
}

/* Right album detail and the independent left music panel keep EXACTLY
 * their open/close, resize dimensions and controller structure. */
:is(html[data-layout="desktop"],html:not([data-layout])) .album-detail-panel,
:is(html[data-layout="desktop"],html:not([data-layout])) .music-panel {
  background: var(--surface-sidebar);
  box-shadow: -3px 0 16px rgba(0,0,0,0.12);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .music-panel {
  box-shadow: 3px 0 16px rgba(0,0,0,0.12);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .album-detail-panel .detail-view-toggle {
  gap: 0;
  justify-content: space-around;
  border-bottom: 1px solid var(--desktop-line);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .album-detail-panel .detail-view-toggle-btn {
  flex: 1 1 0;
  text-align: center;
  font-size: 12px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .album-detail-panel .detail-search {
  border-radius: var(--desktop-control-radius);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .album-detail-panel .detail-work-header {
  border-radius: 3px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .album-detail-panel .detail-work-header:hover {
  background: var(--overlay-hover);
}

/* Persistent desktop player retains all transport, EQ, volume and timing. */
:is(html[data-layout="desktop"],html:not([data-layout])) .player-bar {
  border-top: 1px solid var(--desktop-line);
  background: var(--surface-player);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .np-info h4 {
  font-weight: 680;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .ctrl-btn:not(.play-pause) {
  border-radius: 6px;
  padding: 4px;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .ctrl-btn:not(.play-pause):hover {
  background: var(--overlay-hover);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .ctrl-btn.play-pause {
  background: var(--accent-primary);
  color: var(--text-on-accent);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .ctrl-btn.play-pause .icon-svg {
  color: var(--text-on-accent);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .progress-track,
:is(html[data-layout="desktop"],html:not([data-layout])) .volume-slider {
  border-radius: 2px;
}

/* SETTINGS: cleaner category rail; no behaviour or field type changes. */
:is(html[data-layout="desktop"],html:not([data-layout])) .prefs-nav-item {
  position: relative;
  border: 0;
  border-radius: 4px;
  background: transparent;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .prefs-nav-item.active {
  background: transparent;
  color: var(--accent-primary);
}
:is(html[data-layout="desktop"],html:not([data-layout])) .prefs-nav-item.active::before {
  content: '';
  position: absolute;
  inset: 18% auto 18% 0;
  width: var(--desktop-active-line);
  background: var(--accent-primary);
  border-radius: 0 3px 3px 0;
}
:is(html[data-layout="desktop"],html:not([data-layout])) .prefs-search-input {
  border-radius: var(--desktop-control-radius);
}

/* Keep keyboard navigation highly legible, including on light themes. */
:is(html[data-layout="desktop"],html:not([data-layout])) :is(.view-tab,.rpq-tab,.nav-item,.prefs-nav-item,.sidebar-btn):focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: -2px;
}

/* The audio format/quality badges and waveform are deliberately untouched.
 * So are the album cards/cover art, panel resizing, search filtering and
 * queue hierarchy. Mobile layouts never match any selector above. */