/* ── Speed Controls Transport Bar ─────────────────────────────────────── */
#speedControls {
    position: fixed;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 0.8rem;
    background: var(--dev-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--dev-border);
    border-radius: var(--dev-radius);
    box-shadow: 0 6px 22px rgba(60,40,60,0.20);
    z-index: var(--z-dev-panel);
    font-family: var(--dev-font);
    user-select: none;
}

.speed-grip {
    align-self: stretch;
    display: flex;
    align-items: center;
    padding: 0 0.4rem;
    margin-right: 0.2rem;
    color: var(--dev-ink-muted);
    font-size: 1.6rem;
    line-height: 1;
    letter-spacing: -2px;
}
.speed-grip:hover { color: var(--dev-accent); }

.speed-btn {
    min-width: 3.4rem;
    height: 3.0rem;
    padding: 0 0.6rem;
    background: var(--dev-surface);
    color: var(--dev-ink);
    border: none;
    border-radius: var(--dev-radius-sm);
    cursor: pointer;
    font-family: var(--dev-font);
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1;
    transition: background 120ms, color 120ms;
}

.speed-btn:hover {
    background: var(--dev-surface-hover);
    color: #fff;
}

.speed-btn.active {
    background: var(--dev-accent);
    color: #fff;
    box-shadow: 0 1px 6px rgba(var(--accent-rgb), 0.4);
}

.speed-btn.speed-pause.active {
    background: rgba(220, 70, 70, 0.9);
    color: #fff;
}

.speed-label {
    min-width: 5.2rem;
    margin-left: 0.6rem;
    padding: 0 0.8rem;
    color: var(--dev-ink);
    font-weight: 600;
    text-align: center;
    font-size: 1.1rem;
}

/* Phone: the bar must fit the viewport width — shrink buttons, wrap if still too wide. */
@media (max-width: 640px) {
    #speedControls {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.25rem;
        padding: 0.4rem;
        max-width: calc(100vw - 16px);
        box-sizing: border-box;
    }
    .speed-btn { min-width: 2.4rem; height: 2.4rem; padding: 0 0.3rem; font-size: 1rem; }
    .speed-grip { padding: 0 0.2rem; font-size: 1.3rem; }
    .speed-label { min-width: 0; margin-left: 0.2rem; padding: 0 0.3rem; font-size: 1rem; }
}