/* ─────────────────────────────────────────────
   Image Refresh Rotator – Front-end Styles
   Shimmer / sunlight sweep animation
   ───────────────────────────────────────────── */

.irr-image-container {
    position: relative;
    display: block;
    overflow: hidden;
    border-radius: 6px;
    width: 100%;
}

.irr-rotator-image {
    display: block;
    width: 100%;
    height: auto;
}

/* ── Shimmer overlay ──
   A single sunlight-style sweep from left to right on page load.
   Inspired by the stepped-form progress bar shimmer but tuned
   to look like light glinting across a photograph.
   ──────────────────── */
.irr-shimmer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    pointer-events: none;
    opacity: var(--irr-shimmer-opacity, 0.4);
    background: linear-gradient(
        110deg,
        transparent 20%,
        rgba(255, 255, 255, 0.0) 35%,
        rgba(255, 255, 255, 0.8) 45%,
        rgba(255, 255, 255, 1.0) 50%,
        rgba(255, 255, 255, 0.8) 55%,
        rgba(255, 255, 255, 0.0) 65%,
        transparent 80%
    );
    transform: translateX(-100%);
    animation: irr-shimmer-sweep 1.6s ease-in-out 0.3s 1 forwards;
}

@keyframes irr-shimmer-sweep {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(100%);  }
}

/* ── Respect reduced-motion preference ── */
@media (prefers-reduced-motion: reduce) {
    .irr-shimmer {
        animation: none;
        display: none;
    }
}