.ptr-scroll {
    position: relative;
    overflow: auto;
    overscroll-behavior-y: contain;
}

.ptr-indicator {
    height: 0;
    overflow: hidden;
    transition: height 0.18s ease;
    flex-shrink: 0;
}

.ptr-indicator__inner {
    height: 72px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--color-text-secondary);
}

.ptr-indicator__spinner {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid rgba(var(--color-primary-rgb), 0.2);
    border-top-color: var(--color-primary);
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.ptr-indicator__label {
    font-size: 12px;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.ptr-indicator--ready .ptr-indicator__spinner,
.ptr-indicator--active .ptr-indicator__spinner {
    opacity: 1;
    transform: scale(1);
}

.ptr-indicator--ready .ptr-indicator__label {
    opacity: 1;
}

.ptr-indicator--active .ptr-indicator__spinner {
    animation: ptr-spin 0.75s linear infinite;
}

.ptr-indicator--active .ptr-indicator__label {
    opacity: 0;
}

@keyframes ptr-spin {
    to {
        transform: rotate(360deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    .ptr-indicator {
        transition: none;
    }

    .ptr-indicator--active .ptr-indicator__spinner {
        animation: none;
        border-top-color: var(--color-primary);
    }
}