.di-core-media-background { position: relative; isolation: isolate; overflow: hidden; min-height: clamp(180px, 30vw, 480px); }
.di-core-media-background > .di-core-background-fallback, .di-core-media-background > .di-core-background-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; pointer-events: none; margin: 0; }
.di-core-media-background > .di-core-background-video { opacity: 0; }
.di-core-media-background.is-background-playing > .di-core-background-video { opacity: 1; }
.di-core-media-background > .di-core-background-content { position: relative; z-index: 1; }
@media (prefers-reduced-motion: no-preference) { .di-core-background-video { transition: opacity 150ms ease; } }
/* Also suppress controls emitted by installed imported-theme runtimes. */
.di-core-background-playback, .di2026-background-playback, .di-background-playback { display: none !important; }
@media (max-width: 600px) { .di-core-media-background { min-height: 180px; } }