.loading-overlay {
    position: absolute;
    inset: 0;
    z-index: 5;
    display: none;
    pointer-events: none;
    color: var(--color-base-content);
}

.loading-overlay[data-visible="song"] {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    background: var(--color-base-100);
}

.loading-overlay[data-visible="page"] {
    display: block;
}

.loading-overlay[data-visible="page"] .loading-overlay__song {
    display: none;
}

.loading-overlay__song {
    text-align: center;
}

.loading-overlay__key {
    font-size: clamp(3rem, 14vmin, 9rem);
    font-weight: 700;
    line-height: 1;
}

.loading-overlay__title {
    margin-top: 0.75rem;
    font-size: clamp(1rem, 4vmin, 1.75rem);
}

.loading-overlay__metronome {
    width: 4rem;
}

.loading-overlay[data-visible="page"] .loading-overlay__metronome {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    width: 1.75rem;
}

.loading-overlay__body {
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linejoin: round;
}

.loading-overlay__pendulum {
    stroke: currentColor;
    stroke-width: 2.5;
    stroke-linecap: round;
    transform-origin: 20px 40px;
    animation: loading-overlay-swing 0.6s ease-in-out infinite alternate;
}

@keyframes loading-overlay-swing {
    from { transform: rotate(-25deg); }
    to { transform: rotate(25deg); }
}

@media (prefers-reduced-motion: reduce) {
    .loading-overlay__pendulum {
        animation: none;
    }
}