.irm-container {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    overflow: hidden;
    background-color: #111;
    transition: background-color 0.4s ease;
}

.irm-bg-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.5s ease-in-out, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    transform: scale(1.05);
    z-index: 1;
}

.irm-bg-layer.active {
    opacity: 1;
    transform: scale(1);
}

.irm-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.irm-menu-wrapper {
    position: relative;
    z-index: 3;
    width: 100%;
    box-sizing: border-box;
}

.irm-menu-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.irm-menu-link {
    display: inline-block;
    text-decoration: none;
    position: relative;
    padding: 5px 0;
    font-weight: bold;
    transition: color 0.3s ease;
}

/* Bottom border / underline hover effect */
.irm-menu-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    transform: scaleX(0);
    transform-origin: bottom left;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.irm-menu-link:hover::after {
    transform: scaleX(1);
}