:root {
    --sidebar-width-collapsed: 60px;
    --secondary-menu-width-expanded: 200px;
    --primary-bg: #FFFFFF;
    --secondary-bg: #f5f6f8;
    --text-color: #3b4255;
    --icon-color: #6c7786;
    --hover-bg: #e4e7ed;
    --border-color: #e4e7ed;
    --shadow-color: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
    --primary-bg: #1A1A1A;
    --secondary-bg: #222222;
    --text-color: #EFEFEF;
    --icon-color: #9C9C9C;
    --hover-bg: #2C2C2C;
    --border-color: #3C3C3C;
    --shadow-color: rgba(0, 0, 0, 0.2);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    transition: color 0.3s ease, background-color 0.3s ease, transform 0.3s ease, left 0.3s cubic-bezier(0.2, 0, 0.2, 1), width 0.3s cubic-bezier(0.2, 0, 0.2, 1);
}

body {
    background-color: var(--secondary-bg);
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    width: var(--sidebar-width-collapsed);
    background-color: var(--primary-bg);
    box-shadow: 2px 0 10px var(--shadow-color);
    position: relative;
    z-index: 100;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
}

.sidebar-header {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 60px;
}

.sidebar-main-menu {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex-grow: 1;
}

.sidebar-list {
    list-style: none;
    padding: 10px 0;
    display: flex;
    flex-direction: column;
}

.sidebar-list .sidebar-item {
    display: flex;
    align-items: center;
    height: 40px;
    padding: 0 10px;
    cursor: pointer;
    position: relative;
    color: var(--text-color);
    overflow: hidden;
    border-radius: 8px;
    margin: 0 10px 5px 10px;
    user-select: none;
}

.sidebar-list .sidebar-item.active {
    background-color: var(--hover-bg);
    color: var(--text-color);
}

.sidebar-item-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 100%;
    font-size: 20px;
    color: var(--icon-color);
}

.sidebar-item-label {
    display: none;
    opacity: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-left: 10px;
    color: var(--text-color);
}

.sidebar.expanded .sidebar-item-label {
    display: flex;
    opacity: 1;
}

.sidebar-bottom {
    padding: 10px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
}

.secondary-menu {
    position: absolute;
    top: 0;
    left: var(--sidebar-width-collapsed);
    height: 100%;
    width: 0;
    background-color: var(--primary-bg);
    box-shadow: 5px 0 10px var(--shadow-color);
    transition: width 0.3s cubic-bezier(0.2, 0, 0.2, 1), left 0.3s cubic-bezier(0.2, 0, 0.2, 1);
    overflow: hidden;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 99;
}

.secondary-menu.visible {
    width: var(--sidebar-width-collapsed);
    overflow-x: hidden;
}

.secondary-menu.expanded {
    width: var(--secondary-menu-width-expanded);
    overflow-y: auto;
}

.secondary-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    padding: 0 15px;
}

.secondary-menu-header .title {
    font-weight: bold;
    font-size: 1.1em;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.secondary-menu.expanded .secondary-menu-header .title {
    opacity: 1;
}

.secondary-menu-header .btn {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1em;
    color: var(--icon-color);
}

.secondary-menu-search {
    padding: 10px 10px;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.secondary-menu.expanded .secondary-menu-search {
    display: flex;
    opacity: 1;
}

.secondary-menu-search .search-container {
    position: relative;
}

.secondary-menu-search .search-container .bx-search {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--icon-color);
}

.secondary-menu-search .search-input {
    width: 100%;
    padding: 8px 8px 8px 35px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--secondary-bg);
    color: var(--text-color);
    outline: none;
}

.secondary-menu-list {
    list-style: none;
    padding: 10px 0;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.secondary-menu-heading {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.secondary-menu.expanded .secondary-menu-heading {
    display: block;
    opacity: 1;
    font-size: 1em;
    font-weight: bold;
    color: var(--icon-color);
    padding: 0px 15px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.secondary-menu-item {
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    white-space: nowrap;
}

.secondary-menu-item-main {
    display: flex;
    align-items: center;
    padding: 0px 15px;
    width: 100%;
    border-radius: 8px;
    justify-content: space-between;
}

.secondary-menu-item-icon {
    font-size: 20px;
    flex-shrink: 0;
    color: var(--icon-color);
    margin-right: 10px;
}

.secondary-menu.visible .secondary-menu-item-content {
    opacity: 0;
    display: none;
}

.toggle-caret {
    margin-left: auto;
    font-size: 20px;
    color: var(--icon-color);
    display: flex;
    align-items: center;        
    line-height: 1;
    transition: transform 0.3s ease;
}
.secondary-menu.visible .toggle-caret {
    opacity: 0;
    display: none;
}

.item-spacer {
    flex: 1;
}
.secondary-menu.visible .item-spacer {
    display: none;
}

.secondary-menu-item-label {
    flex-grow: 1;
    font-size: 0.8em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-color);
}

.secondary-menu-item .toggle-caret {
    font-size: 16px;
    color: var(--icon-color);
    transition: transform 0.3s ease;
}

.secondary-menu-item.has-children.open .toggle-caret {
    transform: rotate(180deg);
}

.secondary-menu-item .dropdown-list {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    width: 100%;
}

.secondary-menu-item.open .dropdown-list {
    max-height: 200px;
    /* Adjust based on content */
}

.dropdown-item {
    padding: 8px 15px 8px 45px;
    font-size: 0.8em;
    white-space: normal;
    word-wrap: break-word;
}


.theme-switcher-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 0;
    border-top: 1px solid var(--border-color);
}

.theme-switcher {
    width: 50px;
    height: 30px;
    border-radius: 15px;
    background-color: #d1d9e6;
    cursor: pointer;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.theme-switcher.dark {
    background-color: #3b3b3b;
}

.theme-switcher .bx {
    position: absolute;
    font-size: 18px;
    color: #fff;
    top: 50%;
    transform: translateY(-50%);
    transition: opacity 0.3s ease;
}

.theme-switcher .bx-sun {
    right: 5px;
    opacity: 1;
}

.theme-switcher.dark .bx-sun {
    opacity: 0;
}

.theme-switcher .bx-moon {
    left: 5px;
    opacity: 0;
}

.theme-switcher.dark .bx-moon {
    opacity: 1;
}

.theme-switcher-knob {
    width: 20px;
    height: 20px;
    background-color: var(--primary-bg);
    border-radius: 50%;
    position: absolute;
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
    transition: left 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.theme-switcher.dark .theme-switcher-knob {
    left: 25px;
}

.secondary-menu.visible .secondary-menu-search {
    display: flex;
    align-items: center;
    opacity: 1;
}

.secondary-menu.visible .search-container {
    width: 30px;   
    height: 30px;
    background: var(--secondary-bg);
    border-radius: 8px;
    display: flex;
    align-items: center;
    padding: 5px;
    box-shadow: 0 1px 4px var(--shadow-color);
    margin: 0;     /* Remove extra margin */
    position: relative;
}

.secondary-menu.visible .search-input {
    display: none;
}

.secondary-menu.visible .bx-search {
    font-size: 20px;
    color: var(--icon-color);
    position: static;
    left: unset;
    top: unset;
    transform: none;
    margin: 0;
}