/* Sidebar Layout */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1030;
    transition: width 0.3s ease, transform 0.3s ease;
    border-right: 1px solid var(--border-color);
    background-color: var(--surface-color);
    display: flex;
    flex-direction: column;
}

/* Sidebar Header */
.sidebar-header {
    background-color: var(--primary-color);
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
}

/* Nav Link Styling */
.sidebar .nav-link {
    display: flex;
    align-items: center;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: var(--primary-color);
    background-color: #EEF2FF;
}

.sidebar .nav-link i {
    font-size: 1.25rem;
    margin-right: 0.5rem;
    min-width: 24px;
    /* Ensure icon doesn't shrink */
    text-align: center;
}

/* Desktop Sidebar Collapsed State */
@media (min-width: 769px) {
    .sidebar.collapsed {
        width: var(--sidebar-collapsed-width);
    }

    .sidebar.collapsed .sidebar-text {
        opacity: 0;
        width: 0;
        display: none;
    }

    .sidebar.collapsed .logo-area {
        display: none !important;
    }

    .sidebar.collapsed .sidebar-header {
        justify-content: center !important;
        padding: 0;
    }

    .sidebar.collapsed #sidebarToggle {
        margin: 0 !important;
    }

    .sidebar.collapsed .nav-link {
        justify-content: center;
        padding-left: 0;
        padding-right: 0;
    }

    .sidebar.collapsed .nav-link i {
        margin-right: 0 !important;
        font-size: 1.4rem;
    }

    .sidebar.collapsed .btn {
        padding-left: 0;
        padding-right: 0;
        justify-content: center;
    }

    /* Adjust main content when sidebar is collapsed */
    .sidebar.collapsed~.main-content-wrapper {
        margin-left: var(--sidebar-collapsed-width);
        width: calc(100% - var(--sidebar-collapsed-width));
    }

    /* Adjust header when sidebar is collapsed */
    .sidebar.collapsed~.main-header {
        left: var(--sidebar-collapsed-width);
        width: calc(100% - var(--sidebar-collapsed-width));
    }
}

/* Mobile Sidebar */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
        /* Always full width on mobile when active */
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: 4px 0 10px rgba(0, 0, 0, 0.1);
    }
}