/* ── Playback bar ──────────────────────────────────────────── */
.playback-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.6rem;
    background: var(--surface2);
    border-radius: 8px;
    margin-bottom: 0.75rem;
}
.pb-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
    width: 30px;
    height: 30px;
    cursor: pointer;
    font-size: 0.85rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: border-color 0.15s, color 0.15s;
}
.pb-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.pb-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.pb-btn.pb-active { border-color: var(--accent); color: var(--accent); }
.pb-progress {
    flex: 1;
    height: 5px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    cursor: pointer;
    position: relative;
}
.pb-progress-fill {
    position: absolute;
    inset: 0 auto 0 0;
    background: var(--accent);
    width: 0%;
    pointer-events: none;
    transition: width 0.08s linear;
}
.pb-time {
    font-size: 0.72rem;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
    min-width: 3.2em;
    text-align: right;
    flex-shrink: 0;
}
.pb-loading { font-size: 0.7rem; color: var(--muted); flex-shrink: 0; }
.pb-knob-wrap {
    display: flex; flex-direction: column; align-items: center; gap: 1px;
    flex-shrink: 0; cursor: ns-resize; touch-action: none; user-select: none;
}
.pb-knob { display: block; overflow: visible; }
.pb-knob-track { fill: none; stroke: var(--border);  stroke-width: 2.5; stroke-linecap: round; }
.pb-knob-fill  { fill: none; stroke: var(--accent);  stroke-width: 2.5; stroke-linecap: round; }
.pb-knob-notch { stroke: var(--text); stroke-width: 2; stroke-linecap: round; }
.pb-knob-dot   { fill: var(--surface2); stroke: var(--accent); stroke-width: 1.5; }
.pb-knob-lbl   { font-size: 0.58rem; color: var(--muted); text-align: center;
                  line-height: 1.3; pointer-events: none; }
.pb-knob-lbl b { display: block; font-size: 0.62rem; color: var(--text); font-weight: 500; }