/* A/B notation and contextual sound controls; all color follows existing site tokens. */
.sound-settings{display:flex;flex-direction:column;gap:5px;padding:10px 12px;border:1px solid var(--site-line);border-radius:12px;background:var(--site-surface)}
.sound-settings strong{font-size:13px}.sound-settings .volume-control{display:flex;align-items:center;gap:10px}.sound-settings .volume-control label{flex:1}.sound-settings .volume-control output{min-width:38px;text-align:right;font-variant-numeric:tabular-nums}
.sound-settings #audio-status{margin:0;font-size:11px}.sound-settings #retry-audio{align-self:flex-start;min-height:40px}
.audio-alert{position:fixed;z-index:90;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);width:min(92vw,460px);display:flex;align-items:center;gap:8px;padding:9px 10px;border:1px solid var(--ring-comet);border-radius:12px;background:var(--site-raised);box-shadow:0 8px 24px #0002;color:var(--site-ink);font-size:12px}.audio-alert span{flex:1}.audio-alert button{min-height:40px;padding:5px 10px}
.compare-switch{display:flex;gap:3px;padding:3px;margin-top:9px;border-radius:11px;background:var(--site-surface);border:1px solid var(--site-line)}
.compare-switch button{flex:1;min-width:0;min-height:40px;padding:5px;border:0;border-radius:8px;background:transparent;color:var(--site-muted);font-size:12px}.compare-switch button[aria-pressed=true]{background:var(--site-raised);color:var(--site-accent);box-shadow:0 1px 4px #0002}
.compare-switch #compare-theory-open{flex:0 0 54px;border-left:1px solid var(--site-line);border-radius:0 8px 8px 0}
.compare-score-stage{display:grid;gap:8px;min-width:0;margin-top:3px}.compare-score-row{min-width:0;border:1px solid var(--site-line);border-radius:11px;padding:7px 9px;background:var(--site-raised)}.compare-score-row.playing{border-color:var(--site-accent)}
.compare-score-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;line-height:1.2}.compare-score-heading strong{white-space:nowrap}.compare-score-heading span{color:var(--ring-comet);font-size:11px;text-align:right;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.compare-score-window{position:relative;width:100%;overflow:hidden;background:var(--site-raised)}.compare-score-window.scale{height:112px}.compare-score-window.rolling{height:118px}.compare-score-track{position:relative;height:100%;will-change:transform}.compare-score-window.scale .compare-score-track{width:100%}.compare-score-window.rolling .compare-score-track{width:1600px;max-width:none}.compare-score-track svg{display:block;width:100%;height:100%;color:var(--site-ink)}
.compare-playhead{position:absolute;top:10px;bottom:6px;width:2px;background:var(--site-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--site-accent) 18%,transparent);pointer-events:none}.compare-score-window.scale .compare-playhead{left:var(--compare-cursor,12%)}.compare-score-window.rolling .compare-playhead{left:50%}.compare-score-row:not(.playing) .compare-playhead{opacity:.42}
.compare-feature-ring{fill:none;stroke:var(--ring-comet);stroke-width:1.7;vector-effect:non-scaling-stroke}.compare-active-note path{fill:var(--ring-comet)}
#compare-score-readout{min-height:18px;margin:0;font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.difference-chips .more{display:none}
@media(max-width:760px){
 .sound-settings{padding:8px}.sound-settings .volume-control{gap:6px}.sound-settings .volume-control button{min-width:72px;padding:5px}.sound-settings #audio-status{font-size:10px}
 body[data-mobile-panel=compare] #explore-view .comparison-panel{gap:4px}.comparison-panel>p#feature-explanation,.comparison-panel #context-note,.comparison-panel #aliases,#compare-score-caption{display:none}
 .compare-switch{margin-top:3px}.compare-score-row{padding:5px 7px}.compare-score-window.scale{height:min(11dvh,82px)}.compare-score-window.rolling{height:min(12dvh,90px)}
 .compare-score-heading{font-size:11px}.compare-score-heading span{font-size:10px}
 .difference-chips{flex-wrap:nowrap;overflow:hidden;white-space:nowrap}.difference-chips span:nth-child(n+3):not(.more){display:none}.difference-chips .more{display:inline-flex;flex:0 0 auto}
 .audio-alert{bottom:calc(12px + env(safe-area-inset-bottom,0px))}
}
@media(max-width:760px) and (max-height:700px){.comparison-panel #feature-explanation,.difference-chips{display:none}.compare-score-window.scale{height:83px}.compare-score-window.rolling{height:91px}}
@media(prefers-reduced-motion:reduce){.compare-score-track{will-change:auto}.compare-playhead{box-shadow:none}}