/* ==============================================================
   SIDEBAR COMPONENT
   Flexible and Collapsible Navigation
   ============================================================== */

.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: sticky;
    top: 0;
    transition: var(--transition);
    z-index: 100;
    overflow: hidden;
}

.sidebar-header {
    padding: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border-bottom: 1px solid var(--border);
    min-height: var(--top-bar-height, 85px);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.sidebar-logo-icon {
    width: 100%;
    height: auto;
    max-height: 60px;
    background: transparent;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0;
    overflow: hidden;
}

.sidebar-logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding-bottom: 24px;
}

/* Sidebar Navigation Items */
.sidebar-nav ul {
    list-style: none;
}

/* Section group label */
.sidebar-nav li.nav-group-label {
    padding: 20px 24px 6px;
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-muted);
    opacity: 0.5;
    pointer-events: none;
    cursor: default;
    margin-top: 4px;
}

.sidebar-nav li.nav-group-label:first-child {
    margin-top: 0;
    padding-top: 10px;
}

.sidebar.collapsed li.nav-group-label {
    display: none;
}

.sidebar-nav li a {
    padding: 12px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    font-weight: 500;
    white-space: nowrap;
}

.sidebar-nav li a:hover {
    color: var(--text-main);
    background: rgba(var(--primary-rgb), 0.05);
}

.sidebar-nav li.active a {
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.1);
}

.sidebar-nav li.active a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background-color: var(--primary);
    border-radius: 0 4px 4px 0;
}

/* Collapsed State */
.sidebar.collapsed {
    width: 80px !important;
}

.sidebar.collapsed .logo span,
.sidebar.collapsed .sidebar-nav span,
.sidebar.collapsed .sidebar-nav a::after,
.sidebar.collapsed .user-info,
.sidebar.collapsed .logo::after {
    display: none !important;
    opacity: 0 !important;
}

.sidebar.collapsed .sidebar-logo-icon {
    margin-right: 0;
}

/* Footer & User Profile */
.sidebar-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    background: var(--bg-sidebar);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 4px;
    border-radius: 8px;
    transition: var(--transition);
}

.user-profile:hover {
    background: var(--glass-bg);
}

.user-avatar {
    width: 42px;
    height: 42px;
    background: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    font-weight: 800;
    font-size: 16px;
    flex-shrink: 0;
}

.user-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.user-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 5px;
}

.user-role {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: capitalize;
}

.user-chevron {
    width: 12px;
    height: 12px;
    transition: var(--transition);
}

.user-profile.active .user-chevron {
    transform: rotate(180deg);
}

.sidebar-user-dropdown {
    display: none;
    position: absolute;
    bottom: 80px;
    left: 15px;
    right: 15px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 -10px 40px rgba(var(--black-rgb), 0.4);
    z-index: 10001;
    padding: 8px;
    animation: slideUp 0.3s ease;
}

.sidebar-user-dropdown.active {
    display: flex !important;
    flex-direction: column;
    gap: 4px;
}

.user-dropdown-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-main);
    background: var(--glass-bg);
    border: 1px solid var(--border);
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
}

.user-dropdown-link:hover {
    background: rgba(var(--white-rgb), 0.06);
    border-color: var(--primary);
}

.user-dropdown-item {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-main);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: 0.2s;
    border-radius: 8px;
}

.user-dropdown-item:hover {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
}

.user-dropdown-item.danger {
    color: var(--danger);
}

.user-dropdown-item.danger:hover {
    background: rgba(var(--accent-rgb, 255, 77, 77), 0.1);
}

/* Submenu Styles (Rule 38) */
.has-submenu .submenu {
    display: none;
    list-style: none;
    padding: 8px 0;
    background: rgba(var(--black-rgb), 0.15);
    border-radius: 8px;
    margin: 5px 15px;
    animation: fadeIn 0.3s ease;
}

.has-submenu.open .submenu {
    display: block !important;
}

.has-submenu .submenu li a {
    padding: 10px 15px 10px 45px;
    font-size: 13px;
    gap: 12px;
}

.has-submenu .submenu li a i {
    width: 14px;
    height: 14px;
}

.submenu-chevron {
    margin-left: auto;
    transition: transform 0.3s ease;
}

.has-submenu.open .submenu-chevron {
    transform: rotate(180deg);
}

/* Mobile Responsiveness & Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(var(--black-rgb), 0.6);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 992px) {
    .sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        bottom: 0;
        height: 100vh;
        z-index: 1000;
        box-shadow: 20px 0 50px rgba(var(--black-rgb), 0.5);
        transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        width: 280px !important;
    }

    .sidebar.active {
        left: 0 !important;
    }

    .sidebar.collapsed {
        width: 280px !important;
        left: -280px !important;
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(10px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}