/* Module narration player — /learn/* curriculum pages */
.learn-audio {
    margin: var(--space-6) auto 0;
    max-width: var(--container-max, 72rem);
    padding: 0 var(--space-5);
}

.learn-audio--in-header {
    margin: var(--space-6) 0 0;
    padding: 0;
    max-width: none;
}

.learn-audio__shell {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    background: linear-gradient(135deg, rgba(255, 106, 44, 0.12), var(--ink-3) 55%);
    border: 1px solid rgba(255, 106, 44, 0.35);
    border-radius: var(--r-lg);
    box-shadow: 0 12px 40px -24px rgba(0, 0, 0, 0.65);
}

.learn-audio__play {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border: none;
    border-radius: 50%;
    background: var(--edge);
    color: var(--ink);
    cursor: pointer;
    display: grid;
    place-items: center;
    font-size: 1.1rem;
    transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.learn-audio__play:hover {
    transform: scale(1.04);
    box-shadow: 0 0 0 6px rgba(255, 106, 44, 0.2);
}

.learn-audio__play:focus-visible {
    outline: 2px solid var(--bone);
    outline-offset: 3px;
}

.learn-audio__play-icon--pause {
    display: none;
    letter-spacing: -0.2em;
    font-size: 0.85rem;
}

.learn-audio--playing .learn-audio__play-icon--play {
    display: none;
}

.learn-audio--playing .learn-audio__play-icon--pause {
    display: block;
}

.learn-audio__main {
    flex: 1;
    min-width: 0;
}

.learn-audio__label {
    margin: 0 0 var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--t-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--edge);
}

.learn-audio__track {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.learn-audio__scrub {
    width: 100%;
    height: 6px;
    accent-color: var(--edge);
    cursor: pointer;
}

.learn-audio__times {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: var(--t-xs);
    color: var(--bone-3);
}

.learn-audio__mode {
    margin: var(--space-2) 0 0;
    font-size: var(--t-xs);
    color: var(--bone-3);
    line-height: 1.45;
}

.learn-audio__speed-wrap {
    flex-shrink: 0;
}

.learn-audio__speed {
    font-family: var(--font-mono);
    font-size: var(--t-xs);
    padding: 6px 8px;
    border-radius: var(--r-sm);
    border: 1px solid var(--line-2);
    background: var(--ink-4);
    color: var(--bone);
    cursor: pointer;
}

.learn-audio__element {
    display: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 640px) {
    .learn-audio__shell {
        flex-wrap: wrap;
    }

    .learn-audio__speed-wrap {
        width: 100%;
    }

    .learn-audio__speed {
        width: 100%;
    }
}