/* ========================================
   WxTool - Sidebar Style Sheet
   Classic Navigation Layout with Glassmorphism
   ======================================== */

.app-layout {
    display: flex;
    min-height: calc(100vh - 66px); /* 减去 Header 预留高度 */
    background: var(--page-gradient);
    overflow: hidden;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-shrink: 0;
    transition: width var(--transition-slow) cubic-bezier(0.4, 0, 0.2, 1);
    height: calc(100vh - 66px);
    overflow-y: auto;
    overflow-x: hidden;
}

/* Collapsed Sidebar State */
.sidebar.collapsed {
    width: 72px;
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}
.sidebar::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.menu-title {
    font-size: 0.6875rem;
    color: var(--text-tertiary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 0.75rem;
    margin-top: 0.5rem;
}

.sidebar.collapsed .menu-title {
    display: none;
}

/* Menu Item */
.menu-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    user-select: none;
}

.menu-item:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.menu-item.active {
    background: var(--primary-gradient);
    color: var(--text-on-primary);
    box-shadow: var(--shadow-primary);
    font-weight: 600;
}

.menu-item svg {
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.sidebar.collapsed .menu-item span {
    display: none;
}

/* Menu Groups (Sub-menus) */
.menu-group {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.menu-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 0.75rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    user-select: none;
}

.menu-group-header:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.menu-group-header .group-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.menu-group-header .arrow-icon {
    transition: transform var(--transition-base);
}

.menu-group.open .menu-group-header .arrow-icon {
    transform: rotate(180deg);
}

.menu-group-items {
    display: none;
    flex-direction: column;
    gap: 0.125rem;
    padding-left: 1.5rem;
}

.menu-group.open .menu-group-items {
    display: flex;
}

.sidebar.collapsed .menu-group-header .arrow-icon,
.sidebar.collapsed .menu-group-items {
    display: none !important;
}

.sidebar.collapsed .menu-group-header span {
    display: none;
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    padding: 1.5rem 2rem;
    overflow-y: auto;
    height: calc(100vh - 66px);
}

/* Collapse Toggle Button at Sidebar Bottom */
.sidebar-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.sidebar-collapse-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-xs);
}

.sidebar-collapse-btn:hover {
    color: var(--primary);
    border-color: var(--primary-light);
    background: var(--primary-light);
}

.sidebar.collapsed .sidebar-collapse-btn span {
    display: none;
}

.sidebar.collapsed .sidebar-footer {
    padding-top: 0.5rem;
}