.iim-container {
    display: flex;
    width: 100%;
    overflow: hidden;
    position: relative;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.iim-sidebar {
    display: flex;
    flex-direction: column;
    z-index: 3;
}

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

.iim-tab {
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.iim-tab-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}

.iim-tab-text {
    display: block;
}

.iim-tab-description {
    display: block;
    line-height: 1.4;
    transition: color 0.3s ease;
}

/* Arrow handling for hover and active states */
.iim-tab:hover .iim-tab-arrow,
.iim-tab.active .iim-tab-arrow {
    display: block;
    position: absolute;
    right: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 10px solid transparent; 
    z-index: 10;
}

.iim-tab .iim-tab-arrow {
    display: none;
}

.iim-content-area {
    display: flex;
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.iim-submenu-wrapper {
    position: relative;
    z-index: 2;
}

.iim-submenu-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.iim-submenu-content.active {
    display: block;
}

.iim-submenu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.iim-submenu-item {
    transition: all 0.3s ease;
    cursor: pointer;
}

.iim-submenu-item .iim-submenu-link {
    text-decoration: none;
    display: block;
    transition: color 0.3s ease;
    pointer-events: none;
}

.iim-submenu-item a.iim-submenu-link {
    pointer-events: auto;
}

.iim-submenu-title {
    display: block;
    transition: color 0.3s ease;
}

.iim-submenu-description {
    display: block;
    transition: color 0.3s ease;
    line-height: 1.5;
}

.iim-image-wrapper {
    flex: 1;
    position: relative;
    z-index: 1;
}

.iim-image-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.iim-image-layer.active {
    opacity: 1;
    visibility: visible;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

@media (max-width: 767px) {
    .iim-container {
        flex-direction: column;
    }
    .iim-sidebar,
    .iim-content-area,
    .iim-submenu-wrapper {
        width: 100% !important;
        flex: none !important;
    }
    .iim-content-area {
        flex-direction: column;
    }
    .iim-image-wrapper {
        min-height: 300px;
    }
    .iim-tab:hover .iim-tab-arrow,
    .iim-tab.active .iim-tab-arrow {
        display: none;
    }
}