/* ============================================================================
   APP LAYOUT
   ============================================================================ */
.app {
    flex: 1;
    min-width: var(--app-min-width);
    overflow-x: auto;
    margin-left: var(--sidebar-width);
    padding: var(--spacing-xl);
    min-height: 100vh;
    transition: margin-left var(--transition-base);
}

.app--no-padding {
    padding: 0;
}

.app--loading {
    opacity: 0.5;
    pointer-events: none;
}

/* ============================================================================
   SIDEBAR COMPONENT
   ============================================================================ */
#sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--color-card-bg);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-base), background var(--transition-base);
    z-index: var(--z-header);
    overflow: hidden;
}

.sidebar__logo {
    display: flex;
    align-items: center;
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.sidebar__logo-icon {
    margin-right: var(--spacing-sm);
    width: 2rem;
    height: 2rem;
    color: var(--color-primary);
}

.sidebar__logo-text {
    color: var(--color-text);
}

/* Scrollable container for navigation */
.sidebar__scroll-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
}

.sidebar__nav {
    list-style: none;
    padding: var(--spacing-md) 0;
}

.sidebar__nav-item {
    margin-bottom: var(--spacing-xs);
}

.sidebar__nav-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    border-left: 3px solid transparent;
}

.sidebar__nav-link:hover {
    background-color: var(--color-surface-hover);
    color: var(--color-text);
}

.sidebar__nav-link--active {
    background-color: var(--color-primary-bg);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

.sidebar__nav-icon {
    margin-right: var(--spacing-sm);
    width: 20px;
    text-align: center;
}

.sidebar__nav-text {
    font-size: var(--font-size-base);
}

.sidebar__user {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-md);
    flex-shrink: 0;
    margin-top: auto;
    background: var(--color-surface);
}

.sidebar__user-info {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.sidebar__avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-right: var(--spacing-sm);
}

.sidebar__user-details {
    flex: 1;
    min-width: 0;
}

.sidebar__user-name {
    font-weight: 500;
    font-size: var(--font-size-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--color-text);
}

.sidebar__user-email {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar__user-actions {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.sidebar__action-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
}

.sidebar__action-btn:hover {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.sidebar__action-btn--logout:hover {
    background-color: var(--color-danger);
    border-color: var(--color-danger);
}

.sidebar__action-btn i {
    font-size: var(--font-size-base);
}

/* Sidebar separator for custom menu items */
.sidebar__separator {
    height: 1px;
    background-color: var(--color-border);
    margin: var(--spacing-md) var(--spacing-md);
    opacity: 0.5;
    flex-shrink: 0;
}

/* Custom user menu section */
.sidebar__nav--custom {
    min-height: 0;
    padding: 0;
    margin: 0;
}



/* ============================================================================
   Page Containers - For persistent pages
   ============================================================================ */
.page-container {
    width: 100%;
    height: 100%;
}

/* ============================================================================
   Connection Status Indicator
   ============================================================================ */
.connection-status {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    box-shadow: var(--shadow-default);
    transition: all var(--transition-base);
    z-index: var(--z-header);
}

.connection-status--connected {
    background: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

.connection-status--disconnected {
    background: var(--color-warning);
    color: white;
    border-color: var(--color-warning);
    animation: pulse 2s infinite;
}

.connection-status--hidden {
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}





/* Sidebar Header with Collapse Button */
.sidebar__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
    height: var(--sidebar-header-height);
    box-sizing: border-box;
}

[data-theme="dark"] #sidebar {
    background: var(--color-surface);
    border-right-color: var(--color-border);
}

[data-theme="cyber"] #sidebar {
    background: var(--color-surface);
    border-right-color: var(--color-primary);
    border-right-width: 1px;
    box-shadow: 2px 0 10px rgba(0, 217, 255, 0.1);
}


[data-theme="cyber"] .sidebar__nav-link:hover {
    background: rgba(0, 217, 255, 0.1);
    color: var(--color-primary);
}

[data-theme="cyber"] .sidebar__nav-link--active {
    background: rgba(0, 217, 255, 0.15);
    box-shadow: inset 3px 0 0 var(--color-primary);
}

[data-theme="cyber"] .sidebar__logo-icon {
    filter: drop-shadow(0 0 5px rgba(0, 217, 255, 0.5));
}

/* ============================================================================
   RESPONSIVE STYLES
   ============================================================================ */

@media (max-width: 1260px) {
    :root {
        --sidebar-width-collapsed: 90px;
        /* Adjusted for better spacing */
    }

    #sidebar {
        width: var(--sidebar-width-collapsed);
    }

    .app {
        margin-left: var(--sidebar-width-collapsed);
    }

    /* Hide text elements we don't want to show vertically */
    .sidebar__logo-text,
    .sidebar__user-details {
        display: none;
    }

    /* Center the logo icon */
    .sidebar__logo {
        justify-content: center;
    }

    .sidebar__logo-icon {
        margin-right: 0;
    }

    /* --- Changes for Nav Items --- */
    .sidebar__nav-link {
        flex-direction: column;
        /* Stack icon and text vertically */
        justify-content: center;
        height: var(--sidebar-nav-item-height);
        /* Give items a consistent height */
        padding: var(--spacing-sm);
    }

    .sidebar__nav-icon {
        margin-right: 0;
        /* Remove horizontal margin */
        margin-bottom: var(--spacing-xs);
        /* Add space between icon and text */
    }

    .sidebar__nav-text {
        font-size: var(--font-size-xs);
        /* Make text smaller */
        text-align: center;
    }

    /* --- End of Changes for Nav Items --- */


    /* Adjust user section for collapsed view */
    .sidebar__user-info {
        flex-direction: column;
        align-items: center;
        margin-bottom: var(--spacing-md);
    }

    .sidebar__avatar {
        margin-right: 0;
        margin-bottom: var(--spacing-sm);
    }

    .sidebar__user-actions {
        flex-direction: column;
    }
}