/**
 * CloudUI Theme - Sidebar Styles
 * Fixed left navigation with modern cloud service design
 */

/* ============================================
   Sidebar Container
   ============================================ */
.cloudui-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: var(--z-fixed);
    transition: width var(--transition-base), transform var(--transition-base);
    box-shadow: var(--shadow-lg);
}

/* Custom scrollbar for sidebar */
.cloudui-sidebar::-webkit-scrollbar {
    width: 6px;
}

.cloudui-sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.cloudui-sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
}

.cloudui-sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* ============================================
   Sidebar Header
   ============================================ */
.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    height: var(--navbar-height);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.sidebar-logo:hover {
    opacity: 0.9;
    color: var(--white);
}

.sidebar-logo img {
    height: 32px;
    width: auto;
    margin-right: var(--space-sm);
}

.sidebar-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--white);
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}

.sidebar-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* ============================================
   Sidebar Navigation
   ============================================ */
.sidebar-nav {
    padding: var(--space-lg) 0;
}

.sidebar-nav-section {
    margin-bottom: var(--space-xl);
}

.sidebar-nav-title {
    padding: var(--space-sm) var(--space-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.45);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-sm);
}

/* ============================================
   Menu Items
   ============================================ */
.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu-item {
    position: relative;
}

.sidebar-menu-link {
    display: flex;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
    position: relative;
}

.sidebar-menu-link:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--white);
    border-left-color: var(--primary-color);
}

.sidebar-menu-link.active {
    background: linear-gradient(90deg, rgba(255, 106, 0, 0.15) 0%, rgba(255, 106, 0, 0.05) 100%);
    color: var(--white);
    border-left-color: var(--primary-color);
    font-weight: 500;
}

.sidebar-menu-link.active::before {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--primary-color);
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

/* Menu Icon */
.sidebar-menu-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    margin-right: var(--space-md);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

/* Menu Text */
.sidebar-menu-text {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Menu Badge */
.sidebar-menu-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 var(--space-xs);
    background: var(--primary-color);
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-left: var(--space-sm);
}

/* Menu Arrow for submenu */
.sidebar-menu-arrow {
    margin-left: auto;
    padding-left: var(--space-sm);
    transition: transform var(--transition-fast);
}

.sidebar-menu-item.has-submenu.open .sidebar-menu-arrow {
    transform: rotate(180deg);
}

/* ============================================
   Submenu
   ============================================ */
.sidebar-submenu {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.sidebar-menu-item.has-submenu.open .sidebar-submenu {
    max-height: 1000px;
}

.sidebar-submenu-item {
    position: relative;
}

.sidebar-submenu-link {
    display: flex;
    align-items: center;
    padding: var(--space-sm) var(--space-xl) var(--space-sm) calc(var(--space-xl) + 32px);
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.sidebar-submenu-link::before {
    content: '';
    position: absolute;
    left: calc(var(--space-xl) + 10px);
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.sidebar-submenu-link:hover {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.05);
}

.sidebar-submenu-link:hover::before {
    background: var(--primary-color);
    width: 6px;
    height: 6px;
}

.sidebar-submenu-link.active {
    color: var(--primary-color);
    font-weight: 500;
}

.sidebar-submenu-link.active::before {
    background: var(--primary-color);
    width: 6px;
    height: 6px;
}

/* ============================================
   Sidebar Footer
   ============================================ */
.sidebar-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.2);
}

.sidebar-user {
    display: flex;
    align-items: center;
    color: var(--white);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.sidebar-user:hover {
    opacity: 0.9;
    color: var(--white);
}

.sidebar-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-right: var(--space-md);
    flex-shrink: 0;
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    font-weight: 500;
    font-size: var(--font-size-base);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.65);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   Collapsed Sidebar State
   ============================================ */
.cloudui-layout.sidebar-collapsed .cloudui-sidebar {
    width: var(--sidebar-collapsed-width);
}

.cloudui-layout.sidebar-collapsed .sidebar-logo-text,
.cloudui-layout.sidebar-collapsed .sidebar-menu-text,
.cloudui-layout.sidebar-collapsed .sidebar-menu-badge,
.cloudui-layout.sidebar-collapsed .sidebar-menu-arrow,
.cloudui-layout.sidebar-collapsed .sidebar-nav-title,
.cloudui-layout.sidebar-collapsed .sidebar-user-info {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.cloudui-layout.sidebar-collapsed .sidebar-header {
    justify-content: center;
    padding: var(--space-lg) var(--space-sm);
}

.cloudui-layout.sidebar-collapsed .sidebar-menu-link {
    justify-content: center;
    padding: var(--space-md) var(--space-sm);
}

.cloudui-layout.sidebar-collapsed .sidebar-menu-icon {
    margin-right: 0;
}

.cloudui-layout.sidebar-collapsed .sidebar-submenu {
    display: none;
}

.cloudui-layout.sidebar-collapsed .sidebar-user {
    justify-content: center;
}

.cloudui-layout.sidebar-collapsed .sidebar-user-avatar {
    margin-right: 0;
}

/* Tooltip for collapsed sidebar */
.cloudui-layout.sidebar-collapsed .sidebar-menu-link[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gray-900);
    color: var(--white);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
    margin-left: var(--space-sm);
    z-index: var(--z-tooltip);
}

.cloudui-layout.sidebar-collapsed .sidebar-menu-link:hover[data-tooltip]::after {
    opacity: 1;
}

/* ============================================
   Mobile Responsive
   ============================================ */
@media (max-width: 768px) {
    .cloudui-sidebar {
        transform: translateX(-100%);
    }

    .cloudui-sidebar.mobile-open {
        transform: translateX(0);
    }

    .sidebar-toggle {
        display: block;
    }

    /* Mobile overlay */
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: calc(var(--z-fixed) - 1);
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-base);
    }

    .sidebar-overlay.active {
        opacity: 1;
        pointer-events: all;
    }
}

@media (min-width: 769px) {
    .sidebar-toggle {
        display: block;
    }
}

/* ============================================
   Theme Variations
   ============================================ */
/* Dark theme (default) */
.cloudui-sidebar.theme-dark {
    background: var(--sidebar-bg);
}

/* Light theme */
.cloudui-sidebar.theme-light {
    background: var(--white);
    border-right: 1px solid var(--gray-200);
}

.cloudui-sidebar.theme-light .sidebar-header {
    border-bottom-color: var(--gray-200);
}

.cloudui-sidebar.theme-light .sidebar-logo,
.cloudui-sidebar.theme-light .sidebar-menu-link {
    color: var(--gray-900);
}

.cloudui-sidebar.theme-light .sidebar-menu-link:hover {
    background-color: var(--gray-100);
    color: var(--gray-900);
}

.cloudui-sidebar.theme-light .sidebar-menu-link.active {
    background: linear-gradient(90deg, rgba(255, 106, 0, 0.1) 0%, rgba(255, 106, 0, 0.02) 100%);
    color: var(--primary-color);
}

.cloudui-sidebar.theme-light .sidebar-nav-title {
    color: var(--gray-600);
}

.cloudui-sidebar.theme-light .sidebar-submenu-link {
    color: var(--gray-700);
}

.cloudui-sidebar.theme-light .sidebar-footer {
    background: var(--gray-50);
    border-top-color: var(--gray-200);
}

.cloudui-sidebar.theme-light .sidebar-user {
    color: var(--gray-900);
}

/* ============================================
   Accessibility
   ============================================ */
.sidebar-menu-link:focus,
.sidebar-submenu-link:focus,
.sidebar-user:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: -2px;
}

/* Skip to main content link */
.skip-to-main {
    position: absolute;
    top: -100px;
    left: var(--space-lg);
    z-index: var(--z-tooltip);
    padding: var(--space-md) var(--space-lg);
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: top var(--transition-fast);
}

.skip-to-main:focus {
    top: var(--space-lg);
}