/*
 * Managed Services Platform - Modern Dark Theme
 * Next.js inspired design with bold typography and rounded components
 */

/* ===== CSS VARIABLES ===== */
:root {
    /* Colors - Dark Theme */
    --color-bg-primary: #0a0a0a;
    --color-bg-secondary: #111111;
    --color-bg-tertiary: #171717;
    --color-bg-card: #1a1a1a;
    --color-bg-elevated: #262626;
    --color-bg-hover: #2a2a2a;
    
    /* Borders */
    --color-border: #262626;
    --color-border-light: #333333;
    --color-border-focus: #3b82f6;
    
    /* Text */
    --color-text-primary: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    --color-text-inverse: #0a0a0a;
    
    /* Accent Colors */
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-primary-light: rgba(59, 130, 246, 0.15);
    
    --color-success: #22c55e;
    --color-success-light: rgba(34, 197, 94, 0.15);
    --color-warning: #f59e0b;
    --color-warning-light: rgba(245, 158, 11, 0.15);
    --color-danger: #ef4444;
    --color-danger-light: rgba(239, 68, 68, 0.15);
    --color-info: #06b6d4;
    --color-info-light: rgba(6, 182, 212, 0.15);
    --color-purple: #a855f7;
    --color-purple-light: rgba(168, 85, 247, 0.15);
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.25rem;
    --radius-full: 9999px;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Sidebar */
    --sidebar-width: 280px;
    --sidebar-collapsed: 80px;
    --topbar-height: 64px;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.text-muted { color: var(--color-text-muted); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }

/* ===== LAYOUT ===== */
.app-layout {
    display: flex;
    min-height: 100vh;
}

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

.sidebar-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.sidebar-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: var(--text-lg);
    color: white;
}

.sidebar-logo-text {
    font-weight: 700;
    font-size: var(--text-xl);
    background: linear-gradient(135deg, var(--color-text-primary), var(--color-text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-4);
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--space-6);
}

.nav-section-title {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-2);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    font-weight: 500;
    transition: all var(--transition-fast);
    margin-bottom: var(--space-1);
}

.nav-item:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.nav-item.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--color-border);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-8);
    z-index: 50;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* Hide sidebar toggle on desktop */
.sidebar-toggle {
    display: none;
}

@media (max-width: 1024px) {
    .sidebar-toggle {
        display: flex;
    }
}

.topbar-title {
    font-size: var(--text-xl);
    font-weight: 700;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.page-content {
    flex: 1;
    padding: var(--space-8);
    max-width: 1600px;
}

/* ===== CARDS ===== */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--color-border-light);
}

.card-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
}

.card-body {
    padding: var(--space-6);
}

.card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-tertiary);
}

/* ===== STAT CARDS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--stat-color, var(--color-primary));
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    background: var(--stat-bg, var(--color-primary-light));
    color: var(--stat-color, var(--color-primary));
}

.stat-icon svg {
    width: 24px;
    height: 24px;
}

.stat-value {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-text-primary);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-xs);
    font-weight: 600;
    margin-top: var(--space-2);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
}

.stat-change.positive {
    background: var(--color-success-light);
    color: var(--color-success);
}

.stat-change.negative {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg-hover);
    border-color: var(--color-border-light);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.btn-danger {
    background: var(--color-danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-lg);
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    font-family: inherit;
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-muted);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

/* ===== TABLES ===== */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--space-4) var(--space-5);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    background: var(--color-bg-tertiary);
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--color-bg-hover);
}

.table td {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    background: var(--color-bg-elevated);
    color: var(--color-text-secondary);
}

.badge-primary {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.badge-danger {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.badge-info {
    background: var(--color-info-light);
    color: var(--color-info);
}

.badge-purple {
    background: var(--color-purple-light);
    color: var(--color-purple);
}

/* Priority Badges */
.priority-critical {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

.priority-high {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.priority-medium {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.priority-low {
    background: var(--color-success-light);
    color: var(--color-success);
}

/* Status Dots */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    display: inline-block;
}

.status-dot.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ===== DASHBOARD GRID ===== */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

.dashboard-grid-full {
    grid-column: 1 / -1;
}

@media (max-width: 1200px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== CHARTS ===== */
.chart-container {
    position: relative;
    height: 300px;
    padding: var(--space-4);
}

.chart-container-sm {
    height: 200px;
}

.chart-container-lg {
    height: 400px;
}

/* ===== LISTS ===== */
.list-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    transition: background var(--transition-fast);
}

.list-item:hover {
    background: var(--color-bg-hover);
}

.list-item + .list-item {
    border-top: 1px solid var(--color-border);
}

.list-item-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-elevated);
    color: var(--color-text-muted);
    flex-shrink: 0;
}

.list-item-content {
    flex: 1;
    min-width: 0;
}

.list-item-title {
    font-weight: 600;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.list-item-subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.list-item-meta {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    text-align: right;
}

/* ===== ACTIVITY TIMELINE ===== */
.timeline {
    position: relative;
    padding-left: var(--space-8);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-5);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -25px;
    top: 4px;
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    background: var(--color-bg-elevated);
    border: 2px solid var(--color-primary);
}

.timeline-time {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-1);
}

.timeline-content {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ===== NOTIFICATIONS ===== */
.notification-btn {
    position: relative;
}

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    background: var(--color-danger);
    color: white;
    font-size: 10px;
    font-weight: 700;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

.notification-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 380px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    display: none;
}

.notification-dropdown.show {
    display: block;
    animation: slideIn 0.2s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== FLASH MESSAGES ===== */
.flash-messages {
    position: fixed;
    top: var(--space-6);
    right: var(--space-6);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.flash-message {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

.flash-message.success {
    border-left: 4px solid var(--color-success);
}

.flash-message.error {
    border-left: 4px solid var(--color-danger);
}

.flash-message.warning {
    border-left: 4px solid var(--color-warning);
}

.flash-message.info {
    border-left: 4px solid var(--color-info);
}

/* ===== AUTH PAGES ===== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    box-shadow: var(--shadow-xl);
}

.auth-logo {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-logo-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
    border-radius: var(--radius-xl);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: var(--text-2xl);
    color: white;
    margin-bottom: var(--space-4);
}

.auth-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-2);
}

.auth-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--space-8);
}

/* ===== EMPTY STATES ===== */
.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-6);
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-6);
    background: var(--color-bg-elevated);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.empty-state-icon svg {
    width: 40px;
    height: 40px;
}

.empty-state-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.empty-state-text {
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
}

/* ===== KANBAN ===== */
.kanban-board {
    display: flex;
    gap: var(--space-5);
    overflow-x: auto;
    padding-bottom: var(--space-4);
}

.kanban-column {
    min-width: 320px;
    max-width: 320px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
}

.kanban-column-header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kanban-column-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
}

.kanban-count {
    background: var(--color-bg-elevated);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.kanban-cards {
    padding: var(--space-4);
    flex: 1;
    overflow-y: auto;
    min-height: 200px;
}

.kanban-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-3);
    cursor: grab;
    transition: all var(--transition-fast);
}

.kanban-card:hover {
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-md);
}

.kanban-card:active {
    cursor: grabbing;
}

.kanban-card.dragging {
    opacity: 0.5;
    transform: rotate(3deg);
}

/* ===== PROGRESS BAR ===== */
.progress-bar {
    height: 8px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-purple));
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

/* ===== USER AVATAR ===== */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    font-size: var(--text-sm);
    flex-shrink: 0;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: var(--text-xs);
}

.avatar-lg {
    width: 56px;
    height: 56px;
    font-size: var(--text-lg);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .page-content {
        padding: var(--space-5);
    }
}

@media (max-width: 768px) {
    :root {
        --text-4xl: 1.875rem;
        --text-3xl: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .topbar {
        padding: 0 var(--space-4);
    }
    
    .auth-card {
        padding: var(--space-6);
    }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-light);
}

/* ===== UTILITIES ===== */
.hidden { display: none !important; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mt-4 { margin-top: var(--space-4); }
.p-4 { padding: var(--space-4); }
.rounded-lg { border-radius: var(--radius-lg); }
.font-bold { font-weight: 700; }
.text-center { text-align: center; }