/**
 * ============================================================================
 * SIDEBAR COMPONENT
 * ============================================================================
 * 
 * Sidebar navigation styling and responsive behavior
 */

/* === SIDEBAR CONTAINER === */
.sidebar {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-right: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    min-height: calc(100vh - var(--navbar-height));
    width: var(--sidebar-width);
    position: sticky;
    top: var(--navbar-height);
    overflow-y: auto;
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

/* === SIDEBAR NAVIGATION === */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-secondary);
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-weight: var(--font-weight-medium);
}

.nav-item:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    transform: translateX(4px);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.nav-item i {
    font-size: var(--font-size-lg);
    width: 20px;
    text-align: center;
}

.nav-item span {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* === SIDEBAR SECTIONS === */
.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.sidebar-section-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
    padding: 0 var(--spacing-lg);
}

/* === USER INFO SECTION === */
.user-info-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
}

.user-details {
    margin-left: var(--spacing-md);
}

.user-name {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.user-plan {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    display: inline-block;
}

/* === RESPONSIVE BEHAVIOR === */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: var(--navbar-height);
        left: -100%;
        width: 280px;
        height: calc(100vh - var(--navbar-height));
        z-index: 1050;
        box-shadow: var(--shadow-xl);
        transition: left var(--transition-normal);
    }
    
    .sidebar.show {
        left: 0;
    }
    
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1040;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .sidebar-overlay.show {
        opacity: 1;
        visibility: visible;
    }
    
    .nav-item {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 576px) {
    .sidebar {
        width: 100%;
        left: -100%;
    }
    
    .nav-item span {
        display: block;
    }
}

/* === THEME SPECIFIC STYLES === */
[data-theme="dark"] .sidebar {
    background: rgba(17, 24, 39, 0.95);
    border-right-color: rgba(75, 85, 99, 0.3);
}

[data-theme="dark"] .user-info-card {
    background: rgba(31, 41, 55, 0.8);
    border-color: rgba(75, 85, 99, 0.3);
}

/* === ACCESSIBILITY === */
.nav-item:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .sidebar,
    .nav-item {
        transition: none;
    }
}

/* === SCROLL STYLING === */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* === SIDEBAR HEADER === */
.sidebar-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    color: var(--text-primary);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.sidebar-header .badge {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
}

/* === SYSTEM STATUS === */
.system-status {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-xl);
    transition: all var(--transition-normal);
}

.system-status h3 {
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
}

.status-grid {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.status-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: var(--bg-secondary);
    transition: all 0.3s ease;
}

.status-indicator.online {
    background: #28a745;
    border-color: #1e7e34;
    box-shadow: 0 0 8px rgba(40, 167, 69, 0.5);
}

.status-indicator.offline {
    background: #dc3545;
    border-color: #c82333;
}

.status-indicator.idle {
    background: #ffc107;
    border-color: #e0a800;
}

.status-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: var(--font-weight-medium);
}

.storage-info,
.version-info {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.storage-info i,
.version-info i {
    margin-right: var(--spacing-xs);
    opacity: 0.7;
}

/* === DARK THEME OVERRIDES FOR SYSTEM STATUS === */
[data-theme="dark"] .system-status {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border-color);
    color: var(--dark-text-primary);
}

[data-theme="dark"] .system-status h3 {
    color: var(--dark-text-primary);
}

[data-theme="dark"] .status-indicator {
    border-color: var(--dark-border-color);
    background: var(--dark-bg-secondary);
}

[data-theme="dark"] .status-label {
    color: var(--dark-text-muted);
}

[data-theme="dark"] .storage-info,
[data-theme="dark"] .version-info {
    color: var(--dark-text-muted);
}

.status-list {
    margin: 0;
}

.status-list div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.status-list dt {
    font-weight: var(--font-weight-normal);
    color: var(--text-secondary);
    margin: 0;
}

.status-list dd {
    margin: 0;
}

.status-list .badge {
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
}