/* Sidebar Styles */
.app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 250px;
    background-color: var(--background-color);
    border-right: 1px solid var(--border-color);
    z-index: 1000;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
}

.sidebar-nav {
    padding: 1rem 0;
    overflow-y: auto;
    height: calc(100% - 60px);
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: var(--text-color);
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

.sidebar-nav-item:hover {
    background-color: #f8f9fa;
}

.sidebar-nav-item.active {
    background-color: var(--primary-color);
    color: #fff;
}

.sidebar-nav-item i {
    margin-right: 0.75rem;
    font-size: 1.25rem;
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--background-color);
}

/* Sidebar Collapsed */
.app-sidebar.collapsed {
    transform: translateX(-250px);
}

/* Sidebar Dark Mode */
.app-sidebar.dark {
    background-color: #1a1a1a;
    border-right-color: #333;
}

.app-sidebar.dark .sidebar-title {
    color: #fff;
}

.app-sidebar.dark .sidebar-nav-item {
    color: #fff;
}

.app-sidebar.dark .sidebar-nav-item:hover {
    background-color: #333;
}

.app-sidebar.dark .sidebar-nav-item.active {
    background-color: var(--primary-color);
}

/* Sidebar with Icons */
.app-sidebar.with-icons .sidebar-nav-item {
    padding-left: 2.5rem;
}

.app-sidebar.with-icons .sidebar-nav-item i {
    position: absolute;
    left: 1rem;
}

/* Sidebar with Badges */
.sidebar-nav-item .badge {
    margin-left: auto;
    background-color: var(--secondary-color);
    color: #fff;
    padding: 0.25rem 0.5rem;
    border-radius: 1rem;
    font-size: 0.75rem;
}

/* Sidebar with Nested Items */
.sidebar-nav-item.has-submenu {
    position: relative;
}

.sidebar-nav-item.has-submenu::after {
    content: '';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid currentColor;
    transition: transform var(--transition-fast);
}

.sidebar-nav-item.has-submenu.open::after {
    transform: translateY(-50%) rotate(180deg);
}

.sidebar-submenu {
    display: none;
    padding-left: 2.5rem;
}

.sidebar-nav-item.open + .sidebar-submenu {
    display: block;
}

/* Sidebar Responsive */
@media (max-width: 768px) {
    .app-sidebar {
        transform: translateX(-250px);
    }

    .app-sidebar.show {
        transform: translateX(0);
    }
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

.sidebar-toggle:hover {
    background-color: #f8f9fa;
}

/* Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    display: none;
}

.sidebar-overlay.show {
    display: block;
}