/* ============================================
   THEME BACKDROP - Shared Structure
   ============================================ */

.theme-backdrop {
    pointer-events: none;
    position: fixed;
    inset: 0;
    z-index: 1;
    opacity: 0;
    overflow: hidden;
    transition: opacity 0.7s ease 0.25s;
}

.theme-layer,
.theme-detail {
    position: absolute;
}

.matrix-rain-canvas {
    display: none;
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
}

@media (prefers-reduced-motion: reduce) {
    .theme-backdrop *,
    .theme-backdrop *::before,
    .theme-backdrop *::after {
        animation: none !important;
    }
}