/* Spinner and label shown while an image is being processed. */
.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition);
}

.loader--visible {
    z-index: 15;
    opacity: 1;
}

.loader__ring {
    --size: 3rem;
    width: var(--size);
    height: var(--size);
    border: 4px solid var(--color-gray-light);
    border-top: 4px solid var(--color-accent);
    border-radius: 50%;
    animation: spin-in-place 1s linear infinite;
}

.loader__label {
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    background-color: var(--color-white-transparent);
    backdrop-filter: var(--blur-soft);
    font-size: 13px;
    color: var(--color-gray-dark);
    white-space: nowrap;
}