/**
 * ArmA 3 HC Control Panel - Modern Commercial UI
 * Professional dark theme with accent colors
 */

/* ===== CSS Variables ===== */
:root {
    /* Primary palette */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: rgba(99, 102, 241, 0.1);
    
    /* Accent colors */
    --accent-green: #10b981;
    --accent-green-hover: #059669;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --accent-blue: #3b82f6;
    
    /* Background layers */
    --bg-base: #0a0a0f;
    --bg-surface: #12121a;
    --bg-elevated: #1a1a24;
    --bg-hover: #22222e;
    
    /* Border colors */
    --border: #2a2a3a;
    --border-light: #3a3a4a;
    
    /* Text colors */
    --text-primary: #f1f1f4;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    /* Spacing */
    --sidebar-width: 260px;
    --header-height: 64px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    
    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
}

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

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

/* ===== Layout Structure ===== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* ===== Sidebar Navigation ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.sidebar-logo-img {
    height: 36px;
    width: auto;
    max-width: 120px;
    object-fit: contain;
}

.sidebar-logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-logo-text span {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.7rem;
    display: block;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all var(--transition-fast);
    margin-bottom: 4px;
    position: relative;
}

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

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

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    width: 3px;
    height: 24px;
    background: var(--primary);
    border-radius: 0 4px 4px 0;
}

.nav-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: capitalize;
}

/* ===== Main Content Area ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.content-header {
    height: var(--header-height);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.content-body {
    padding: 32px;
    max-width: 1600px;
}

/* ===== Cards & Panels ===== */
.card, .panel {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 24px;
}

.card-header, .panel-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title, .panel-title {
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-body, .panel-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    background: var(--bg-elevated);
}

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all var(--transition-normal);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.green { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.stat-icon.blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.stat-icon.orange { background: rgba(245, 158, 11, 0.15); color: var(--accent-orange); }
.stat-icon.purple { background: var(--primary-light); color: var(--primary); }
.stat-icon.red { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-glow);
    color: white;
}

.btn-success {
    background: var(--accent-green);
    color: white;
}

.btn-success:hover {
    background: var(--accent-green-hover);
    color: white;
}

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

.btn-danger:hover {
    background: #dc2626;
    color: white;
}

.btn-warning {
    background: var(--accent-orange);
    color: #1a1a1a;
}

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

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--border-light);
    color: var(--text-primary);
}

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

.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
}

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

/* ===== Forms ===== */
.form-group {
    margin-bottom: 20px;
}

.form-label, label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea,
input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:hover,
input:hover,
select:hover,
textarea:hover {
    border-color: var(--border-light);
}

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

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

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 6px;
}

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

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

table th {
    text-align: left;
    padding: 14px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
}

table td {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

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

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

table tbody tr:last-child td {
    border-bottom: none;
}

/* ===== Status Badges ===== */
.badge, .status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
}

.badge-success, .status-running {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
}

.badge-warning, .status-installing, .status-updating {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-orange);
}

.badge-danger, .status-error, .status-stopped {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

.badge-info, .status-active {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.badge-neutral, .status-inactive {
    background: var(--bg-elevated);
    color: var(--text-secondary);
}

.status-dot, .badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    animation: pulse 2s infinite;
}

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

/* ===== Progress Bars ===== */
.progress, .progress-bar-container {
    height: 8px;
    background: var(--bg-elevated);
    border-radius: 50px;
    overflow: hidden;
}

.progress-bar, .progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 50px;
    transition: width var(--transition-normal);
}

.progress-bar.success { background: var(--accent-green); }
.progress-bar.warning { background: var(--accent-orange); }
.progress-bar.danger { background: var(--accent-red); }

/* ===== Alerts & Messages ===== */
.alert, .message {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 20px;
}

.alert-success, .message-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-green);
}

.alert-warning, .message-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--accent-orange);
}

.alert-danger, .alert-error, .message-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
}

.alert-info, .message-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--accent-blue);
}

/* ===== Empty States ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.empty-state-text {
    color: var(--text-secondary);
    max-width: 400px;
    margin: 0 auto 20px;
}

/* ===== Mod Links ===== */
.mod-name-link {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

.mod-name-link:hover {
    color: var(--primary);
}

.mod-name-link:hover strong {
    text-decoration: underline;
}

/* ===== Loading States ===== */
.spinner, .loading-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-overlay.active {
    display: flex;
}

.loading-overlay .spinner {
    width: 48px;
    height: 48px;
    border-width: 4px;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ===== Server/HC Cards ===== */
.item-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
}

.item-card, .server-card, .hc-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.item-card:hover, .server-card:hover, .hc-card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-lg);
}

.item-card-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border);
}

.item-card-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.item-card-info {
    flex: 1;
    min-width: 0;
}

.item-card-name {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 4px;
}

.item-card-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.item-card-body {
    padding: 20px;
}

.item-card-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.item-card-stat {
    text-align: center;
    padding: 12px;
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
}

.item-card-stat-value {
    font-size: 1.25rem;
    font-weight: 700;
}

.item-card-stat-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.item-card-footer {
    padding: 16px 20px;
    background: var(--bg-elevated);
    display: flex;
    gap: 8px;
}

.item-card-footer .btn {
    flex: 1;
}

/* ===== Activity Log ===== */
.activity-list {
    display: flex;
    flex-direction: column;
}

.activity-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-icon.success { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.activity-icon.warning { background: rgba(245, 158, 11, 0.15); color: var(--accent-orange); }
.activity-icon.error { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }
.activity-icon.info { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }

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

.activity-message {
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.activity-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Workshop Browser ===== */
.workshop-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

.workshop-item, .mod-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.workshop-item:hover, .mod-card:hover {
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.workshop-item.added {
    border-color: var(--accent-green);
}

.workshop-thumbnail, .mod-thumbnail {
    width: 100%;
    height: 140px;
    object-fit: cover;
    background: var(--bg-elevated);
}

.workshop-thumbnail-placeholder {
    width: 100%;
    height: 140px;
    background: linear-gradient(135deg, var(--bg-elevated), var(--bg-hover));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 2rem;
}

.workshop-item-info, .mod-info {
    padding: 16px;
}

.workshop-item-name, .mod-name {
    font-weight: 600;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.workshop-item-id, .mod-id {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: monospace;
}

.workshop-item-actions, .mod-actions {
    padding: 12px 16px;
    background: var(--bg-elevated);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ===== Pagination ===== */
.pagination, .pagination-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 20px;
}

.pagination-btn, .page-btn {
    min-width: 100px;
}

.pagination-info, .page-indicator {
    padding: 8px 16px;
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===== Tabs ===== */
.tabs {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.tab {
    flex: 1;
    padding: 10px 20px;
    text-align: center;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    background: none;
}

.tab:hover {
    color: var(--text-primary);
}

.tab.active {
    background: var(--bg-surface);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

/* ===== Settings Page ===== */
.settings-section {
    margin-bottom: 32px;
}

.settings-section-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

.settings-row:last-child {
    border-bottom: none;
}

.settings-info {
    flex: 1;
}

.settings-label {
    font-weight: 500;
    margin-bottom: 4px;
}

.settings-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== Job Progress ===== */
.job-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 16px;
}

.job-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.job-name {
    font-weight: 600;
}

.job-status {
    font-size: 0.8rem;
}

.job-progress {
    margin-bottom: 8px;
}

.job-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

/* ===== Login/Setup Page ===== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--bg-base) 0%, #1a1a2e 100%);
}

.auth-box {
    width: 100%;
    max-width: 420px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--accent-blue));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 16px;
}

.auth-logo-img {
    height: 64px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    margin: 0 auto 16px;
    display: block;
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auth-form .btn {
    width: 100%;
    margin-top: 8px;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== Search Box ===== */
.search-box {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.search-input {
    flex: 1;
}

/* ===== Utility Classes ===== */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }

.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.text-muted { color: var(--text-secondary); }
.font-medium { font-weight: 500; }
.font-bold { font-weight: 700; }

.hidden { display: none !important; }
.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.w-full { width: 100%; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-body {
        padding: 20px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .menu-toggle {
        display: flex;
    }
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .item-grid {
        grid-template-columns: 1fr;
    }
    
    .workshop-grid {
        grid-template-columns: 1fr;
    }
    
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .auth-box {
        padding: 24px;
    }
}

/* ===== Mobile Menu Toggle ===== */
.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1.25rem;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

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

/* ===== Selection ===== */
::selection {
    background: var(--primary);
    color: white;
}

/* ===== Focus Visible ===== */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ===== Checkbox & Radio ===== */
input[type="checkbox"],
input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* ===== Code/Pre ===== */
code, pre {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85rem;
}

code {
    background: var(--bg-elevated);
    padding: 2px 6px;
    border-radius: 4px;
}

pre {
    background: var(--bg-elevated);
    padding: 16px;
    border-radius: var(--radius-md);
    overflow-x: auto;
}

/* ===== Update Notification Dot ===== */
.nav-icon {
    position: relative;
}

.update-dot {
    position: absolute;
    top: -2px;
    right: -4px;
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    border: 2px solid var(--bg-surface);
    animation: pulse 2s infinite;
}