/* ============================================================================
   TG-Gate Design System v2.0 - Telegram Native / Fintech Style
   RFC-022 v2.0: Design System Revision
   
   Reference: spend.tg / wallet.tg
   
   Key principles:
   - Clean, professional look (no cyberpunk/neon)
   - System UI fonts (no monospace in UI)
   - Rounded corners (12-16px)
   - Soft shadows instead of glows
   - Light theme by default with dark mode support
   - Telegram CSS Variables for auto-theming
   ============================================================================ */

/* === CSS Variables - Telegram Native Theme === */
:root {
    /* Background - Light theme default */
    --tg-bg-primary: #ffffff;
    --tg-bg-secondary: #f4f4f5;
    --tg-bg-tertiary: #e4e4e7;
    --tg-bg-elevated: #ffffff;
    
    /* Text */
    --tg-text-primary: #18181b;
    --tg-text-secondary: #52525b;
    --tg-text-muted: #a1a1aa;
    --tg-text-inverse: #ffffff;
    
    /* Brand colors */
    --tg-accent: #0088cc;
    --tg-accent-hover: #006699;
    --tg-accent-light: rgba(0, 136, 204, 0.1);
    
    /* Semantic colors */
    --tg-success: #34c759;
    --tg-success-bg: rgba(52, 199, 89, 0.1);
    --tg-warning: #ff9500;
    --tg-warning-bg: rgba(255, 149, 0, 0.1);
    --tg-error: #ff3b30;
    --tg-error-bg: rgba(255, 59, 48, 0.1);
    --tg-info: #007aff;
    --tg-info-bg: rgba(0, 122, 255, 0.1);
    
    /* Borders */
    --tg-border: #e4e4e7;
    --tg-border-light: #f4f4f5;
    --tg-divider: rgba(0, 0, 0, 0.06);
    
    /* Shadows - soft, professional */
    --tg-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --tg-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --tg-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --tg-shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
    
    /* Radius - rounded, friendly */
    --tg-radius-sm: 8px;
    --tg-radius-md: 12px;
    --tg-radius-lg: 16px;
    --tg-radius-xl: 20px;
    --tg-radius-full: 9999px;
    
    /* Typography - System UI */
    --tg-font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --tg-font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Font sizes */
    --tg-text-xs: 0.75rem;
    --tg-text-sm: 0.875rem;
    --tg-text-base: 1rem;
    --tg-text-lg: 1.125rem;
    --tg-text-xl: 1.25rem;
    --tg-text-2xl: 1.5rem;
    --tg-text-3xl: 2rem;
    
    /* Spacing */
    --tg-space-1: 0.25rem;
    --tg-space-2: 0.5rem;
    --tg-space-3: 0.75rem;
    --tg-space-4: 1rem;
    --tg-space-5: 1.25rem;
    --tg-space-6: 1.5rem;
    --tg-space-8: 2rem;
    --tg-space-10: 2.5rem;
    --tg-space-12: 3rem;
    
    /* Transitions */
    --tg-transition-fast: 150ms ease;
    --tg-transition-normal: 200ms ease;
    --tg-transition-slow: 300ms ease;
    
    /* ============================================
       CSS Variable Aliases for backward compat
       (components use --space-*, --text-*, etc.)
       ============================================ */
    
    /* Spacing aliases */
    --space-1: var(--tg-space-1);
    --space-2: var(--tg-space-2);
    --space-3: var(--tg-space-3);
    --space-4: var(--tg-space-4);
    --space-5: var(--tg-space-5);
    --space-6: var(--tg-space-6);
    --space-8: var(--tg-space-8);
    --space-10: var(--tg-space-10);
    --space-12: var(--tg-space-12);
    
    /* Text size aliases */
    --text-xs: var(--tg-text-xs);
    --text-sm: var(--tg-text-sm);
    --text-base: var(--tg-text-base);
    --text-lg: var(--tg-text-lg);
    --text-xl: var(--tg-text-xl);
    --text-2xl: var(--tg-text-2xl);
    --text-3xl: var(--tg-text-3xl);
    
    /* Radius aliases */
    --radius-sm: var(--tg-radius-sm);
    --radius-md: var(--tg-radius-md);
    --radius-lg: var(--tg-radius-lg);
    --radius-xl: var(--tg-radius-xl);
    --radius-full: var(--tg-radius-full);
    
    /* Color aliases */
    --bg-primary: var(--tg-bg-primary);
    --bg-secondary: var(--tg-bg-secondary);
    --bg-tertiary: var(--tg-bg-tertiary);
    --bg-elevated: var(--tg-bg-elevated);
    --text-primary: var(--tg-text-primary);
    --text-secondary: var(--tg-text-secondary);
    --text-muted: var(--tg-text-muted);
    --border: var(--tg-border);
    --border-light: var(--tg-border-light);
    --accent: var(--tg-accent);
    --accent-hover: var(--tg-accent-hover);
    --accent-light: var(--tg-accent-light);
    --success: var(--tg-success);
    --success-bg: var(--tg-success-bg);
    --warning: var(--tg-warning);
    --warning-bg: var(--tg-warning-bg);
    --error: var(--tg-error);
    --error-bg: var(--tg-error-bg);
    --info: var(--tg-info);
    --info-bg: var(--tg-info-bg);
    
    /* Shadow aliases */
    --shadow-sm: var(--tg-shadow-sm);
    --shadow-md: var(--tg-shadow-md);
    --shadow-lg: var(--tg-shadow-lg);
    --shadow-xl: var(--tg-shadow-xl);
    
    /* Transition aliases */
    --transition-fast: var(--tg-transition-fast);
    --transition-normal: var(--tg-transition-normal);
    --transition-slow: var(--tg-transition-slow);
    
    /* Font aliases */
    --font-family: var(--tg-font-family);
    --font-mono: var(--tg-font-mono);
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
}

/* === Dark Theme - Manual Toggle via html.dark class === */
html.dark {
    --tg-bg-primary: #18181b;
    --tg-bg-secondary: #27272a;
    --tg-bg-tertiary: #3f3f46;
    --tg-bg-elevated: #27272a;
    
    --tg-text-primary: #fafafa;
    --tg-text-secondary: #a1a1aa;
    --tg-text-muted: #71717a;
    --tg-text-inverse: #18181b;
    
    --tg-border: #3f3f46;
    --tg-border-light: #27272a;
    --tg-divider: rgba(255, 255, 255, 0.06);
    
    --tg-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --tg-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --tg-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    --tg-shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5);
    
    /* Update aliases for dark theme */
    --bg-primary: var(--tg-bg-primary);
    --bg-secondary: var(--tg-bg-secondary);
    --bg-tertiary: var(--tg-bg-tertiary);
    --bg-elevated: var(--tg-bg-elevated);
    --text-primary: var(--tg-text-primary);
    --text-secondary: var(--tg-text-secondary);
    --text-muted: var(--tg-text-muted);
    --border: var(--tg-border);
    --border-light: var(--tg-border-light);
    --shadow-sm: var(--tg-shadow-sm);
    --shadow-md: var(--tg-shadow-md);
    --shadow-lg: var(--tg-shadow-lg);
    --shadow-xl: var(--tg-shadow-xl);
}

/* === System preference fallback (only if no html.dark class) === */
@media (prefers-color-scheme: dark) {
    html:not(.light) {
        --tg-bg-primary: #18181b;
        --tg-bg-secondary: #27272a;
        --tg-bg-tertiary: #3f3f46;
        --tg-bg-elevated: #27272a;
        
        --tg-text-primary: #fafafa;
        --tg-text-secondary: #a1a1aa;
        --tg-text-muted: #71717a;
        --tg-text-inverse: #18181b;
        
        --tg-border: #3f3f46;
        --tg-border-light: #27272a;
        --tg-divider: rgba(255, 255, 255, 0.06);
        
        --tg-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
        --tg-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
        --tg-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
        --tg-shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5);
    }
}

/* === Telegram WebApp Variables Override === */
/* When running inside Telegram, use their theme */
:root {
    --tg-bg-primary: var(--tg-theme-bg-color, #ffffff);
    --tg-bg-secondary: var(--tg-theme-secondary-bg-color, #f4f4f5);
    --tg-text-primary: var(--tg-theme-text-color, #18181b);
    --tg-text-secondary: var(--tg-theme-hint-color, #52525b);
    --tg-accent: var(--tg-theme-button-color, #0088cc);
    --tg-text-inverse: var(--tg-theme-button-text-color, #ffffff);
    --tg-border: var(--tg-theme-section-separator-color, #e4e4e7);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--tg-font-family);
    font-size: var(--tg-text-base);
    line-height: 1.5;
    color: var(--tg-text-primary);
    background: var(--tg-bg-secondary);
    min-height: 100vh;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--tg-text-primary);
    letter-spacing: -0.02em;
}

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

p {
    color: var(--tg-text-secondary);
    line-height: 1.6;
}

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

a:hover {
    color: var(--tg-accent-hover);
}

/* Monospace - ONLY for code/hashes/logs */
code, pre, .mono, .hash, .log-entry {
    font-family: var(--tg-font-mono);
    font-size: 0.9em;
}

/* === Layout === */
.main-content {
    min-height: 100vh;
    padding-top: 64px; /* Header height */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--tg-space-4);
}

/* === Header - Clean & Professional === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--tg-bg-primary);
    border-bottom: 1px solid var(--tg-border);
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.header-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--tg-space-4);
    height: 100%;
}

.header-logo {
    font-size: var(--tg-text-xl);
    font-weight: 700;
    color: var(--tg-accent);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.header-links {
    display: flex;
    align-items: center;
    gap: var(--tg-space-6);
}

.nav-link {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-secondary);
    text-decoration: none;
    padding: var(--tg-space-2) var(--tg-space-3);
    border-radius: var(--tg-radius-sm);
    transition: all var(--tg-transition-fast);
}

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

.nav-link-primary {
    color: var(--tg-accent);
    font-weight: 600;
}

.nav-link-primary:hover {
    color: var(--tg-accent-hover);
    background: var(--tg-accent-light);
}

.logout-btn {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-error);
    background: none;
    border: none;
    padding: var(--tg-space-2) var(--tg-space-3);
    border-radius: var(--tg-radius-sm);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
}

.logout-btn:hover {
    background: var(--tg-error-bg);
}

/* === Cards - Clean with subtle shadow === */
.card {
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
    overflow: hidden;
}

.card-header {
    padding: var(--tg-space-4) var(--tg-space-5);
    border-bottom: 1px solid var(--tg-divider);
}

.card-body {
    padding: var(--tg-space-5);
}

.card-footer {
    padding: var(--tg-space-4) var(--tg-space-5);
    border-top: 1px solid var(--tg-divider);
    background: var(--tg-bg-secondary);
}

/* === Buttons - Flat/Subtle design === */
button, .btn {
    font-family: var(--tg-font-family);
    font-size: var(--tg-text-sm);
    font-weight: 600;
    cursor: pointer;
    border: none;
    border-radius: var(--tg-radius-md);
    padding: var(--tg-space-3) var(--tg-space-5);
    transition: all var(--tg-transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--tg-space-2);
}

.btn-primary {
    background: var(--tg-accent);
    color: var(--tg-text-inverse);
}

.btn-primary:hover {
    background: var(--tg-accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--tg-shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-secondary:hover {
    background: var(--tg-bg-tertiary);
    border-color: var(--tg-text-muted);
}

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

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

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

.btn-danger:hover {
    background: #e0342b;
}

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

.btn-success:hover {
    background: #2db84d;
}

/* Button sizes */
.btn-sm {
    font-size: var(--tg-text-xs);
    padding: var(--tg-space-2) var(--tg-space-3);
    border-radius: var(--tg-radius-sm);
}

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

/* === Form Elements === */
.form-group {
    margin-bottom: var(--tg-space-4);
}

.form-label {
    display: block;
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-secondary);
    margin-bottom: var(--tg-space-2);
}

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

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

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

.form-error {
    font-size: var(--tg-text-sm);
    color: var(--tg-error);
    margin-top: var(--tg-space-2);
    display: flex;
    align-items: center;
    gap: var(--tg-space-1);
}

/* === Loading States === */
.loading-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--tg-space-8);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--tg-border);
    border-top-color: var(--tg-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

@media (prefers-color-scheme: dark) {
    .loading-overlay {
        background: rgba(24, 24, 27, 0.9);
    }
}

/* === Auth Redirect Overlay === */
.auth-redirect-overlay {
    position: fixed;
    inset: 0;
    background: var(--tg-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.auth-redirect-content {
    text-align: center;
}

.auth-redirect-spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto var(--tg-space-4);
    border: 3px solid var(--tg-border);
    border-top-color: var(--tg-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.auth-redirect-text {
    color: var(--tg-text-secondary);
    font-size: var(--tg-text-sm);
}

/* === Dashboard === */
.dashboard {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--tg-space-6);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--tg-space-6);
}

.dashboard-title {
    font-size: var(--tg-text-2xl);
    font-weight: 700;
    color: var(--tg-text-primary);
}

.dashboard-subtitle {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-muted);
    margin-top: var(--tg-space-1);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--tg-space-4);
    margin-bottom: var(--tg-space-6);
}

.stat-card {
    background: var(--tg-bg-primary);
    padding: var(--tg-space-5);
    border-radius: var(--tg-radius-lg);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
}

.stat-label {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-muted);
    margin-bottom: var(--tg-space-2);
}

.stat-value {
    font-size: var(--tg-text-3xl);
    font-weight: 700;
    color: var(--tg-text-primary);
    letter-spacing: -0.02em;
}

.stat-value-primary { color: var(--tg-accent); }
.stat-value-success { color: var(--tg-success); }
.stat-value-warning { color: var(--tg-warning); }
.stat-value-error { color: var(--tg-error); }

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: var(--tg-space-1);
    font-size: var(--tg-text-sm);
    font-weight: 500;
    margin-top: var(--tg-space-2);
}

.stat-change-positive { color: var(--tg-success); }
.stat-change-negative { color: var(--tg-error); }

/* Quick Actions */
.quick-actions {
    display: flex;
    gap: var(--tg-space-3);
    flex-wrap: wrap;
}

.quick-action-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--tg-space-2);
    padding: var(--tg-space-3) var(--tg-space-4);
    background: var(--tg-bg-primary);
    border: 1px solid var(--tg-border);
    border-radius: var(--tg-radius-md);
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-primary);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
}

.quick-action-btn:hover {
    background: var(--tg-bg-secondary);
    border-color: var(--tg-accent);
    color: var(--tg-accent);
}

/* === Session Cards === */
.session-card {
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    padding: var(--tg-space-4);
    margin-bottom: var(--tg-space-3);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
    transition: all var(--tg-transition-fast);
}

.session-card:hover {
    box-shadow: var(--tg-shadow-md);
    transform: translateY(-2px);
}

.session-card-active {
    border-left: 4px solid var(--tg-success);
}

.session-card-idle {
    border-left: 4px solid var(--tg-warning);
}

.session-card-error {
    border-left: 4px solid var(--tg-error);
}

.session-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.session-phone {
    font-size: var(--tg-text-lg);
    font-weight: 600;
    color: var(--tg-text-primary);
    margin: 0 0 var(--tg-space-1) 0;
}

.session-id {
    font-size: var(--tg-text-xs);
    font-family: var(--tg-font-mono);
    color: var(--tg-text-muted);
    margin: 0;
}

.session-meta {
    display: flex;
    gap: var(--tg-space-4);
    margin-top: var(--tg-space-3);
}

.session-meta-item {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-secondary);
}

.session-status-active { color: var(--tg-success); }
.session-status-idle { color: var(--tg-warning); }
.session-status-error { color: var(--tg-error); }

.session-actions {
    display: flex;
    gap: var(--tg-space-2);
    margin-top: var(--tg-space-3);
}

/* === Trust Badge === */
.trust-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--tg-space-1) var(--tg-space-3);
    border-radius: var(--tg-radius-full);
    font-size: var(--tg-text-sm);
    font-weight: 600;
}

.trust-badge-high {
    background: var(--tg-success-bg);
    color: var(--tg-success);
}

.trust-badge-medium {
    background: var(--tg-warning-bg);
    color: var(--tg-warning);
}

.trust-badge-low {
    background: var(--tg-error-bg);
    color: var(--tg-error);
}

/* === Login Page === */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--tg-space-6);
    background: var(--tg-bg-secondary);
}

.login-card {
    background: var(--tg-bg-primary);
    padding: var(--tg-space-8);
    border-radius: var(--tg-radius-xl);
    box-shadow: var(--tg-shadow-lg);
    width: 100%;
    max-width: 400px;
}

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

.login-subtitle {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-muted);
    text-align: center;
    margin-bottom: var(--tg-space-6);
}

.login-btn {
    width: 100%;
    padding: var(--tg-space-4);
    background: var(--tg-accent);
    color: var(--tg-text-inverse);
    border: none;
    border-radius: var(--tg-radius-md);
    font-size: var(--tg-text-base);
    font-weight: 600;
    cursor: pointer;
    margin-top: var(--tg-space-4);
    transition: all var(--tg-transition-fast);
}

.login-btn:hover {
    background: var(--tg-accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--tg-shadow-md);
}

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* === Sessions Page === */
.sessions-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--tg-space-6);
}

.sessions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--tg-space-6);
}

.sessions-title {
    font-size: var(--tg-text-2xl);
    font-weight: 700;
}

.sessions-filters {
    display: flex;
    gap: var(--tg-space-2);
    margin-bottom: var(--tg-space-4);
    padding: var(--tg-space-1);
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
}

.filter-btn {
    padding: var(--tg-space-2) var(--tg-space-4);
    background: transparent;
    border: none;
    border-radius: var(--tg-radius-sm);
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-secondary);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
}

.filter-btn:hover {
    color: var(--tg-text-primary);
}

.filter-btn-active {
    background: var(--tg-bg-primary);
    color: var(--tg-accent);
    box-shadow: var(--tg-shadow-sm);
}

.sessions-list {
    display: flex;
    flex-direction: column;
}

.empty-state {
    text-align: center;
    padding: var(--tg-space-12);
    color: var(--tg-text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--tg-space-4);
    opacity: 0.5;
}

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

/* === Session Detail === */
.session-detail {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--tg-space-6);
}

.session-detail-header {
    margin-bottom: var(--tg-space-6);
}

.session-detail-title {
    font-size: var(--tg-text-2xl);
    font-weight: 700;
    margin-bottom: var(--tg-space-1);
}

.session-detail-id {
    font-family: var(--tg-font-mono);
    font-size: var(--tg-text-sm);
    color: var(--tg-text-muted);
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--tg-space-4);
}

.detail-card {
    background: var(--tg-bg-primary);
    padding: var(--tg-space-5);
    border-radius: var(--tg-radius-lg);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
}

.detail-card-title {
    font-size: var(--tg-text-base);
    font-weight: 600;
    color: var(--tg-text-primary);
    margin-bottom: var(--tg-space-4);
    padding-bottom: var(--tg-space-3);
    border-bottom: 1px solid var(--tg-divider);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: var(--tg-space-3) 0;
    border-bottom: 1px solid var(--tg-divider);
}

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

.detail-label {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-muted);
}

.detail-value {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-primary);
}

.action-buttons {
    display: flex;
    gap: var(--tg-space-3);
    margin-top: var(--tg-space-4);
}

/* === Settings Page === */
.settings-page {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--tg-space-6);
}

.settings-title {
    font-size: var(--tg-text-2xl);
    font-weight: 700;
    margin-bottom: var(--tg-space-6);
}

.settings-section {
    background: var(--tg-bg-primary);
    padding: var(--tg-space-5);
    border-radius: var(--tg-radius-lg);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
    margin-bottom: var(--tg-space-4);
}

.settings-section-title {
    font-size: var(--tg-text-base);
    font-weight: 600;
    margin-bottom: var(--tg-space-4);
    padding-bottom: var(--tg-space-3);
    border-bottom: 1px solid var(--tg-divider);
}

.settings-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--tg-space-4) 0;
    border-bottom: 1px solid var(--tg-divider);
}

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

.settings-label {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-primary);
}

.settings-description {
    font-size: var(--tg-text-xs);
    color: var(--tg-text-muted);
    margin-top: var(--tg-space-1);
}

/* === Toggle Switch === */
.toggle {
    position: relative;
    width: 48px;
    height: 28px;
}

.toggle-input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--tg-border);
    border-radius: var(--tg-radius-full);
    transition: var(--tg-transition-fast);
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--tg-transition-fast);
    box-shadow: var(--tg-shadow-sm);
}

.toggle-input:checked + .toggle-slider {
    background: var(--tg-accent);
}

.toggle-input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* === Toasts === */
.toast-container {
    position: fixed;
    top: 80px;
    right: var(--tg-space-4);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-2);
    max-width: 400px;
}

.toast {
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-md);
    padding: var(--tg-space-4);
    box-shadow: var(--tg-shadow-lg);
    border: 1px solid var(--tg-border);
    display: flex;
    align-items: flex-start;
    gap: var(--tg-space-3);
    animation: slideIn 0.2s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-icon {
    font-size: var(--tg-text-lg);
}

.toast-message {
    flex: 1;
    font-size: var(--tg-text-sm);
    color: var(--tg-text-primary);
}

.toast-dismiss {
    background: none;
    border: none;
    color: var(--tg-text-muted);
    cursor: pointer;
    padding: 0;
    font-size: var(--tg-text-lg);
    line-height: 1;
}

.toast-dismiss:hover {
    color: var(--tg-text-primary);
}

/* === Responsive === */
@media (max-width: 768px) {
    .header-links {
        gap: var(--tg-space-3);
    }

    .nav-link {
        font-size: var(--tg-text-xs);
        padding: var(--tg-space-1) var(--tg-space-2);
    }

    .dashboard, .sessions-page, .session-detail, .settings-page {
        padding: var(--tg-space-4);
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .detail-grid {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: var(--tg-space-6);
    }
    
    .commander-grid {
        grid-template-columns: 1fr !important;
    }
    
    .kpi-row {
        flex-wrap: wrap;
    }
    
    .kpi-card {
        min-width: calc(50% - 8px);
    }
}

/* ============================================================================
   Commander View - RFC-023 Control Panel
   ============================================================================ */

.commander-view {
    padding: var(--tg-space-6);
    max-width: 1400px;
    margin: 0 auto;
}

.commander-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--tg-space-6);
    padding-bottom: var(--tg-space-4);
    border-bottom: 1px solid var(--tg-border);
}

.commander-title {
    display: flex;
    align-items: center;
    gap: var(--tg-space-4);
}

.commander-title h1 {
    font-size: var(--tg-text-2xl);
    font-weight: 700;
}

.commander-status {
    font-size: var(--tg-text-xs);
    font-weight: 600;
    color: var(--tg-success);
    background: var(--tg-success-bg);
    padding: var(--tg-space-1) var(--tg-space-3);
    border-radius: var(--tg-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* KPI Row */
.kpi-row {
    display: flex;
    gap: var(--tg-space-4);
    margin-bottom: var(--tg-space-6);
}

.kpi-card {
    flex: 1;
    min-width: 200px;
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    padding: var(--tg-space-5);
    border: 1px solid var(--tg-border-light);
    box-shadow: var(--tg-shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--tg-space-4);
    transition: all var(--tg-transition-fast);
}

.kpi-card:hover {
    box-shadow: var(--tg-shadow-md);
    transform: translateY(-2px);
}

.kpi-icon {
    font-size: 2rem;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
}

.kpi-content {
    flex: 1;
}

.kpi-value {
    font-size: var(--tg-text-2xl);
    font-weight: 700;
    color: var(--tg-text-primary);
}

.kpi-title {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-secondary);
}

.kpi-trend {
    font-size: var(--tg-text-xs);
    font-weight: 500;
    margin-top: var(--tg-space-1);
}

.trend-up {
    color: var(--tg-success);
}

.trend-down {
    color: var(--tg-error);
}

/* Commander Grid */
.commander-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--tg-space-6);
    margin-bottom: var(--tg-space-6);
}

.commander-panel {
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    padding: var(--tg-space-5);
    border: 1px solid var(--tg-border-light);
    box-shadow: var(--tg-shadow-sm);
}

.panel-title {
    font-size: var(--tg-text-lg);
    font-weight: 600;
    margin-bottom: var(--tg-space-4);
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--tg-space-4);
}

/* DC Grid / Mini Heatmap */
.mini-heatmap {
    padding: var(--tg-space-2);
}

.dc-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--tg-space-2);
}

.dc-cell {
    aspect-ratio: 1;
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--tg-transition-fast);
    border: 2px solid transparent;
}

.dc-cell:hover {
    border-color: var(--tg-accent);
    transform: scale(1.05);
}

.dc-cell-active {
    background: var(--tg-accent-light);
}

.dc-label {
    font-size: var(--tg-text-xs);
    font-weight: 600;
    color: var(--tg-text-secondary);
}

.dc-count {
    font-size: var(--tg-text-lg);
    font-weight: 700;
    color: var(--tg-text-primary);
}

.cell-selection {
    margin-top: var(--tg-space-3);
    padding: var(--tg-space-2) var(--tg-space-3);
    background: var(--tg-accent-light);
    border-radius: var(--tg-radius-sm);
    font-size: var(--tg-text-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Quick Actions Grid */
.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--tg-space-3);
}

.action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--tg-space-5);
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
    border: 1px solid var(--tg-border-light);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
    text-decoration: none;
    color: var(--tg-text-primary);
}

.action-card:hover {
    background: var(--tg-accent-light);
    border-color: var(--tg-accent);
    transform: translateY(-2px);
}

.action-icon {
    font-size: 2rem;
    margin-bottom: var(--tg-space-2);
}

.action-label {
    font-size: var(--tg-text-sm);
    font-weight: 500;
}

/* Sessions Table */
.sessions-panel {
    grid-column: 1 / -1;
}

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

.sessions-table th,
.sessions-table td {
    text-align: left;
    padding: var(--tg-space-3) var(--tg-space-4);
    border-bottom: 1px solid var(--tg-border-light);
}

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

.sessions-table tbody tr:hover {
    background: var(--tg-bg-secondary);
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: var(--tg-space-1) var(--tg-space-2);
    border-radius: var(--tg-radius-full);
    font-size: var(--tg-text-xs);
    font-weight: 500;
    text-transform: capitalize;
}

.status-active {
    background: var(--tg-success-bg);
    color: var(--tg-success);
}

.status-idle, .status-paused {
    background: var(--tg-warning-bg);
    color: var(--tg-warning);
}

.status-offline, .status-error {
    background: var(--tg-error-bg);
    color: var(--tg-error);
}

.status-imported {
    background: var(--tg-info-bg);
    color: var(--tg-info);
}

/* Trust Badge */
.trust-badge {
    display: inline-block;
    padding: var(--tg-space-1) var(--tg-space-2);
    border-radius: var(--tg-radius-sm);
    font-size: var(--tg-text-xs);
    font-weight: 600;
    background: linear-gradient(90deg, var(--tg-success-bg) var(--trust-level, 0%), var(--tg-bg-secondary) var(--trust-level, 0%));
    border: 1px solid var(--tg-border-light);
}

/* Commander Footer */
.commander-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--tg-space-4);
    margin-top: var(--tg-space-6);
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    border: 1px solid var(--tg-border-light);
}

.system-status {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
    font-size: var(--tg-text-sm);
    color: var(--tg-text-secondary);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-green {
    background: var(--tg-success);
}

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

.server-info {
    font-size: var(--tg-text-xs);
    color: var(--tg-text-muted);
}

/* Btn Link */
.btn-link {
    background: none;
    border: none;
    color: var(--tg-accent);
    font-size: var(--tg-text-sm);
    font-weight: 500;
    cursor: pointer;
    padding: 0;
    text-decoration: none;
}

.btn-link:hover {
    color: var(--tg-accent-hover);
    text-decoration: underline;
}

/* Btn Small */
.btn-sm {
    font-size: var(--tg-text-xs);
    padding: var(--tg-space-1) var(--tg-space-3);
}

/* Heatmap Loading */
.heatmap-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    color: var(--tg-text-muted);
}

/* Login Footer */
.login-footer {
    margin-top: var(--tg-space-6);
    text-align: center;
}

.login-hint {
    font-size: var(--tg-text-xs);
    color: var(--tg-text-muted);
}

/* ============================================================================
   Sessions Page - Quick Filters & Toolbar
   ============================================================================ */

.sessions-toolbar {
    display: flex;
    align-items: center;
    gap: var(--tg-space-3);
    padding: var(--tg-space-3) var(--tg-space-4);
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    margin-bottom: var(--tg-space-4);
    flex-wrap: wrap;
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
}

.search-container {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
    flex: 1;
    min-width: 200px;
    max-width: 320px;
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
    padding: var(--tg-space-2) var(--tg-space-3);
    border: 1px solid var(--tg-border-light);
    transition: all var(--tg-transition-fast);
}

.search-container:focus-within {
    border-color: var(--tg-accent);
    box-shadow: 0 0 0 3px var(--tg-accent-light);
}

.search-icon {
    color: var(--tg-text-muted);
    font-size: var(--tg-text-sm);
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--tg-text-sm);
    color: var(--tg-text-primary);
    outline: none;
    padding: 0;
    width: 100%;
}

.search-input::placeholder {
    color: var(--tg-text-muted);
}

.search-clear {
    background: none;
    border: none;
    color: var(--tg-text-muted);
    cursor: pointer;
    padding: var(--tg-space-1);
    font-size: var(--tg-text-xs);
    border-radius: var(--tg-radius-sm);
    transition: all var(--tg-transition-fast);
}

.search-clear:hover {
    background: var(--tg-bg-tertiary);
    color: var(--tg-text-primary);
}

.quick-filters {
    display: flex;
    align-items: center;
    gap: var(--tg-space-1);
    padding: var(--tg-space-1);
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
}

.quick-filter-btn {
    padding: var(--tg-space-2) var(--tg-space-3);
    background: transparent;
    border: none;
    border-radius: var(--tg-radius-sm);
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-secondary);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
    white-space: nowrap;
}

.quick-filter-btn:hover {
    color: var(--tg-text-primary);
    background: var(--tg-bg-tertiary);
}

.quick-filter-btn.active {
    background: var(--tg-bg-primary);
    color: var(--filter-color, var(--tg-accent));
    box-shadow: var(--tg-shadow-sm);
}

.filter-toggle {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
    padding: var(--tg-space-2) var(--tg-space-3);
    background: var(--tg-bg-secondary);
    border: 1px solid var(--tg-border-light);
    border-radius: var(--tg-radius-md);
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-secondary);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
}

.filter-toggle:hover {
    background: var(--tg-bg-tertiary);
    color: var(--tg-text-primary);
}

.filter-toggle.active {
    background: var(--tg-accent-light);
    color: var(--tg-accent);
    border-color: var(--tg-accent);
}

.filter-icon {
    font-size: var(--tg-text-base);
}

.view-mode-toggle {
    display: flex;
    align-items: center;
    gap: var(--tg-space-1);
    padding: var(--tg-space-1);
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
}

.view-mode-btn {
    padding: var(--tg-space-2);
    background: transparent;
    border: none;
    border-radius: var(--tg-radius-sm);
    font-size: var(--tg-text-base);
    color: var(--tg-text-muted);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
    line-height: 1;
}

.view-mode-btn:hover {
    color: var(--tg-text-primary);
    background: var(--tg-bg-tertiary);
}

.view-mode-btn.active {
    background: var(--tg-bg-primary);
    color: var(--tg-accent);
    box-shadow: var(--tg-shadow-sm);
}

.select-all-btn {
    padding: var(--tg-space-2) var(--tg-space-3);
    background: transparent;
    border: 1px solid var(--tg-border);
    border-radius: var(--tg-radius-md);
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-secondary);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
}

.select-all-btn:hover {
    background: var(--tg-bg-secondary);
    color: var(--tg-text-primary);
    border-color: var(--tg-accent);
}

/* Sessions Header Enhanced */
.sessions-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--tg-space-4);
    gap: var(--tg-space-4);
    flex-wrap: wrap;
}

.header-left {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-2);
}

.page-title {
    font-size: var(--tg-text-2xl);
    font-weight: 700;
    color: var(--tg-text-primary);
    margin: 0;
}

.session-stats {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
    font-size: var(--tg-text-sm);
    color: var(--tg-text-secondary);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--tg-space-1);
}

.stat-value {
    font-weight: 600;
    color: var(--tg-text-primary);
}

.stat-active .stat-value { color: var(--tg-success); }
.stat-idle .stat-value { color: var(--tg-warning); }
.stat-error .stat-value { color: var(--tg-error); }

.stat-divider {
    color: var(--tg-text-muted);
}

.header-actions {
    display: flex;
    gap: var(--tg-space-2);
}

.btn-icon {
    font-weight: 400;
}

/* Sessions Container Views */
.sessions-container {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-3);
}

.sessions-container.view-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--tg-space-4);
}

.sessions-container.view-list {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-2);
}

.sessions-container.view-compact {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-1);
}

/* Advanced Filters Panel */
.advanced-filters {
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    padding: var(--tg-space-5);
    margin-bottom: var(--tg-space-4);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
}

.filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--tg-space-4);
    padding-bottom: var(--tg-space-3);
    border-bottom: 1px solid var(--tg-divider);
}

.filters-header h3 {
    font-size: var(--tg-text-lg);
    font-weight: 600;
    color: var(--tg-text-primary);
    margin: 0;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--tg-text-muted);
    cursor: pointer;
    padding: var(--tg-space-2);
    font-size: var(--tg-text-lg);
    border-radius: var(--tg-radius-sm);
    transition: all var(--tg-transition-fast);
}

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

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--tg-space-4);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-2);
}

.filter-label {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-secondary);
}

.range-inputs {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
}

.range-input {
    width: 80px;
    padding: var(--tg-space-2);
    font-size: var(--tg-text-sm);
}

.filters-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--tg-space-3);
    margin-top: var(--tg-space-4);
    padding-top: var(--tg-space-4);
    border-top: 1px solid var(--tg-divider);
}

/* ============================================================================
   Settings Page Enhanced Styles
   ============================================================================ */

.settings-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--tg-space-6);
    max-width: 1000px;
}

.settings-nav {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-1);
    background: var(--tg-bg-primary);
    padding: var(--tg-space-3);
    border-radius: var(--tg-radius-lg);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
    height: fit-content;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--tg-space-3);
    padding: var(--tg-space-3) var(--tg-space-4);
    background: transparent;
    border: none;
    border-radius: var(--tg-radius-md);
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-secondary);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
    text-align: left;
    width: 100%;
}

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

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

.nav-icon {
    font-size: var(--tg-text-lg);
}

.nav-text {
    flex: 1;
}

.settings-content {
    min-width: 0;
}

.settings-section {
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    padding: var(--tg-space-6);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
}

.section-title {
    font-size: var(--tg-text-xl);
    font-weight: 600;
    color: var(--tg-text-primary);
    margin: 0 0 var(--tg-space-2) 0;
}

.section-description {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-muted);
    margin: 0 0 var(--tg-space-6) 0;
}

.form-card {
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
    padding: var(--tg-space-5);
    margin-bottom: var(--tg-space-4);
}

.card-title {
    font-size: var(--tg-text-base);
    font-weight: 600;
    color: var(--tg-text-primary);
    margin: 0 0 var(--tg-space-2) 0;
}

.card-description {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-muted);
    margin: 0 0 var(--tg-space-4) 0;
}

.static-value {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
    padding: var(--tg-space-3);
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-md);
    border: 1px solid var(--tg-border-light);
}

.static-value code {
    font-family: var(--tg-font-mono);
    font-size: var(--tg-text-sm);
    color: var(--tg-text-primary);
}

.copy-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--tg-space-1);
    border-radius: var(--tg-radius-sm);
    transition: all var(--tg-transition-fast);
}

.copy-btn:hover {
    background: var(--tg-bg-secondary);
}

.static-text {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-secondary);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--tg-space-3);
    margin-top: var(--tg-space-4);
    padding-top: var(--tg-space-4);
    border-top: 1px solid var(--tg-divider);
}

.danger-zone {
    background: var(--tg-error-bg);
    border: 1px solid var(--tg-error);
    border-radius: var(--tg-radius-md);
    padding: var(--tg-space-5);
    margin-top: var(--tg-space-6);
}

.danger-title {
    font-size: var(--tg-text-base);
    font-weight: 600;
    color: var(--tg-error);
    margin: 0 0 var(--tg-space-2) 0;
}

.danger-description {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-secondary);
    margin: 0 0 var(--tg-space-4) 0;
}

/* 2FA Status */
.twofa-status {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
    margin-bottom: var(--tg-space-4);
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.status-indicator.enabled {
    background: var(--tg-success);
}

.status-indicator.disabled {
    background: var(--tg-text-muted);
}

.status-text {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-secondary);
}

/* ============================================================================
   Finance Page Enhanced Styles
   ============================================================================ */

.finance-page {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--tg-space-6);
}

.finance-header {
    margin-bottom: var(--tg-space-6);
}

.finance-title {
    font-size: var(--tg-text-2xl);
    font-weight: 700;
    color: var(--tg-text-primary);
    margin: 0;
}

.finance-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--tg-space-6);
}

.finance-card {
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    padding: var(--tg-space-6);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
}

.finance-card-title {
    font-size: var(--tg-text-lg);
    font-weight: 600;
    color: var(--tg-text-primary);
    margin: 0 0 var(--tg-space-4) 0;
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
}

.balance-display {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-1);
    margin-bottom: var(--tg-space-4);
}

.balance-amount {
    font-size: var(--tg-text-3xl);
    font-weight: 700;
    color: var(--tg-text-primary);
}

.balance-currency {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-muted);
}

.low-balance-warning {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
    padding: var(--tg-space-3);
    background: var(--tg-warning-bg);
    border-radius: var(--tg-radius-md);
    font-size: var(--tg-text-sm);
    color: var(--tg-warning);
    margin-bottom: var(--tg-space-4);
}

.deposit-section {
    padding-top: var(--tg-space-4);
    border-top: 1px solid var(--tg-divider);
}

.deposit-title {
    font-size: var(--tg-text-base);
    font-weight: 600;
    color: var(--tg-text-primary);
    margin: 0 0 var(--tg-space-2) 0;
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
}

.deposit-badge {
    font-size: var(--tg-text-xs);
    font-weight: 500;
    padding: var(--tg-space-1) var(--tg-space-2);
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-sm);
    color: var(--tg-text-muted);
}

.deposit-description {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-muted);
    margin: 0 0 var(--tg-space-4) 0;
}

.plan-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--tg-space-2);
    padding: var(--tg-space-2) var(--tg-space-3);
    background: var(--tg-warning-bg);
    border-radius: var(--tg-radius-md);
    font-size: var(--tg-text-sm);
    font-weight: 600;
    color: var(--tg-warning);
    margin-bottom: var(--tg-space-4);
}

.plan-details {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-3);
}

.plan-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--tg-space-2) 0;
}

.plan-label {
    font-size: var(--tg-text-sm);
    color: var(--tg-text-muted);
}

.plan-value {
    font-size: var(--tg-text-sm);
    font-weight: 600;
    color: var(--tg-text-primary);
}

.upgrade-btn {
    width: 100%;
    margin-top: var(--tg-space-4);
}

.transaction-empty {
    text-align: center;
    padding: var(--tg-space-8);
    color: var(--tg-text-muted);
}

.transaction-empty-icon {
    font-size: 2rem;
    margin-bottom: var(--tg-space-2);
    opacity: 0.5;
}

.transaction-empty-title {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-secondary);
    margin: 0 0 var(--tg-space-1) 0;
}

.transaction-empty-text {
    font-size: var(--tg-text-xs);
    color: var(--tg-text-muted);
    margin: 0;
}

/* ============================================================================
   Automation Page Enhanced Styles
   ============================================================================ */

.automation-page {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--tg-space-4);
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--tg-space-6);
    min-height: calc(100vh - 64px);
}

.automation-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-4);
}

.automation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.automation-title {
    font-size: var(--tg-text-lg);
    font-weight: 600;
    color: var(--tg-text-primary);
    margin: 0;
}

.script-library {
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    padding: var(--tg-space-4);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
    flex: 1;
    overflow: auto;
}

.library-title {
    font-size: var(--tg-text-sm);
    font-weight: 600;
    color: var(--tg-text-secondary);
    margin: 0 0 var(--tg-space-3) 0;
}

.library-search {
    width: 100%;
    margin-bottom: var(--tg-space-3);
}

.library-filters {
    display: flex;
    gap: var(--tg-space-1);
    margin-bottom: var(--tg-space-3);
    flex-wrap: wrap;
}

.library-filter {
    padding: var(--tg-space-1) var(--tg-space-2);
    background: var(--tg-bg-secondary);
    border: none;
    border-radius: var(--tg-radius-sm);
    font-size: var(--tg-text-xs);
    color: var(--tg-text-muted);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
}

.library-filter:hover {
    color: var(--tg-text-primary);
}

.library-filter.active {
    background: var(--tg-accent-light);
    color: var(--tg-accent);
}

.script-list {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-2);
}

.script-item {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-1);
    padding: var(--tg-space-3);
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
    border: 2px solid transparent;
}

.script-item:hover {
    background: var(--tg-bg-tertiary);
}

.script-item.active {
    border-color: var(--tg-accent);
    background: var(--tg-accent-light);
}

.script-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.script-item-name {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-primary);
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
}

.script-item-badge {
    font-size: var(--tg-text-xs);
    padding: var(--tg-space-1) var(--tg-space-2);
    background: var(--tg-info-bg);
    color: var(--tg-info);
    border-radius: var(--tg-radius-sm);
}

.script-item-description {
    font-size: var(--tg-text-xs);
    color: var(--tg-text-muted);
    line-height: 1.4;
}

.automation-main {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-4);
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--tg-bg-primary);
    padding: var(--tg-space-3) var(--tg-space-4);
    border-radius: var(--tg-radius-lg);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
}

.editor-title {
    font-size: var(--tg-text-base);
    font-weight: 500;
    color: var(--tg-text-primary);
}

.editor-actions {
    display: flex;
    gap: var(--tg-space-2);
}

.editor-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    overflow: hidden;
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
}

.code-editor {
    flex: 1;
    min-height: 400px;
    font-family: var(--tg-font-mono);
    font-size: var(--tg-text-sm);
    line-height: 1.6;
    background: #1e1e2e;
    color: #cdd6f4;
    padding: var(--tg-space-4);
    border: none;
    resize: none;
    outline: none;
}

.editor-output {
    background: var(--tg-bg-secondary);
    border-top: 1px solid var(--tg-border);
    padding: var(--tg-space-3) var(--tg-space-4);
}

.output-title {
    font-size: var(--tg-text-xs);
    font-weight: 600;
    color: var(--tg-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--tg-space-2);
}

.output-content {
    font-family: var(--tg-font-mono);
    font-size: var(--tg-text-sm);
    color: var(--tg-text-secondary);
    white-space: pre-wrap;
    max-height: 150px;
    overflow-y: auto;
}

.editor-error {
    color: var(--tg-error);
    font-size: var(--tg-text-sm);
    padding: var(--tg-space-2) var(--tg-space-4);
    background: var(--tg-error-bg);
    border-top: 1px solid var(--tg-error);
}

/* ============================================================================
   God View / Swarm Canvas Styles
   ============================================================================ */

.god-view-page {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 64px);
    padding: var(--tg-space-4);
}

.god-view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--tg-space-4);
    padding: var(--tg-space-3) var(--tg-space-4);
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-lg);
    box-shadow: var(--tg-shadow-sm);
    border: 1px solid var(--tg-border-light);
}

.god-view-stats {
    display: flex;
    gap: var(--tg-space-6);
}

.god-view-stat {
    display: flex;
    flex-direction: column;
}

.god-view-stat-value {
    font-size: var(--tg-text-lg);
    font-weight: 700;
    color: var(--tg-text-primary);
}

.god-view-stat-label {
    font-size: var(--tg-text-xs);
    color: var(--tg-text-muted);
}

.god-view-controls {
    display: flex;
    gap: var(--tg-space-2);
}

.canvas-container {
    flex: 1;
    background: #0d0d14;
    border-radius: var(--tg-radius-lg);
    overflow: hidden;
    position: relative;
}

.canvas-container canvas {
    width: 100%;
    height: 100%;
}

.canvas-legend {
    position: absolute;
    bottom: var(--tg-space-4);
    right: var(--tg-space-4);
    background: var(--tg-bg-primary);
    border-radius: var(--tg-radius-md);
    padding: var(--tg-space-3);
    box-shadow: var(--tg-shadow-lg);
    border: 1px solid var(--tg-border-light);
}

.legend-title {
    font-size: var(--tg-text-xs);
    font-weight: 600;
    color: var(--tg-text-muted);
    margin-bottom: var(--tg-space-2);
}

.legend-items {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-2);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
    font-size: var(--tg-text-xs);
    color: var(--tg-text-secondary);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-dot.active-high { background: var(--tg-success); }
.legend-dot.active-low { background: var(--tg-warning); }
.legend-dot.inactive { background: var(--tg-text-muted); }
.legend-dot.banned { background: var(--tg-error); }
.legend-dot.quarantined { background: #ff6b35; }

/* ============================================================================
   Language Switcher
   ============================================================================ */

.lang-switcher {
    display: flex;
    align-items: center;
    gap: var(--tg-space-1);
    padding: var(--tg-space-1);
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
}

.lang-btn {
    padding: var(--tg-space-1) var(--tg-space-2);
    background: transparent;
    border: none;
    border-radius: var(--tg-radius-sm);
    font-size: var(--tg-text-xs);
    font-weight: 500;
    color: var(--tg-text-muted);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
}

.lang-btn:hover {
    color: var(--tg-text-primary);
}

.lang-btn.active {
    background: var(--tg-bg-primary);
    color: var(--tg-accent);
    box-shadow: var(--tg-shadow-sm);
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: var(--tg-space-2);
    padding: var(--tg-space-2) var(--tg-space-3);
    background: var(--tg-bg-secondary);
    border: none;
    border-radius: var(--tg-radius-md);
    font-size: var(--tg-text-sm);
    color: var(--tg-text-secondary);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
}

.theme-toggle:hover {
    background: var(--tg-bg-tertiary);
    color: var(--tg-text-primary);
}

.theme-icon {
    font-size: var(--tg-text-lg);
}

/* ============================================================================
   Theme & Language Selectors in Settings
   ============================================================================ */

.theme-selector,
.language-selector {
    display: flex;
    gap: var(--tg-space-3);
    margin-top: var(--tg-space-3);
}

.theme-option,
.lang-option {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--tg-space-2);
    padding: var(--tg-space-4);
    background: var(--tg-bg-secondary);
    border: 2px solid var(--tg-border-light);
    border-radius: var(--tg-radius-lg);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
}

.theme-option:hover,
.lang-option:hover {
    background: var(--tg-bg-tertiary);
    border-color: var(--tg-text-muted);
}

.theme-option.active,
.lang-option.active {
    background: var(--tg-accent-light);
    border-color: var(--tg-accent);
}

.theme-icon,
.lang-flag {
    font-size: 2rem;
}

.theme-name,
.lang-name {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-primary);
}

.theme-option.active .theme-name,
.lang-option.active .lang-name {
    color: var(--tg-accent);
}

/* Toggle Row Enhanced */
.toggle-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--tg-space-4) 0;
    border-bottom: 1px solid var(--tg-divider);
}

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

.toggle-info {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-1);
}

.toggle-label {
    font-size: var(--tg-text-sm);
    font-weight: 500;
    color: var(--tg-text-primary);
}

.toggle-description {
    font-size: var(--tg-text-xs);
    color: var(--tg-text-muted);
}

.toggle-switch {
    position: relative;
    width: 48px;
    height: 28px;
    flex-shrink: 0;
}

.toggle-switch .toggle-input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.toggle-switch .toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--tg-border);
    border-radius: var(--tg-radius-full);
    transition: var(--tg-transition-fast);
}

.toggle-switch .toggle-slider::before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--tg-transition-fast);
    box-shadow: var(--tg-shadow-sm);
}

.toggle-switch .toggle-input:checked + .toggle-slider {
    background: var(--tg-accent);
}

.toggle-switch .toggle-input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* ============================================================================
   Responsive adjustments
   ============================================================================ */

@media (max-width: 1024px) {
    .finance-grid {
        grid-template-columns: 1fr;
    }
    
    .automation-page {
        grid-template-columns: 1fr;
    }
    
    .automation-sidebar {
        order: 2;
    }
    
    .automation-main {
        order: 1;
    }
}

@media (max-width: 768px) {
    .settings-layout {
        grid-template-columns: 1fr;
    }
    
    .settings-nav {
        flex-direction: row;
        overflow-x: auto;
        padding: var(--tg-space-2);
    }
    
    .nav-item {
        padding: var(--tg-space-2) var(--tg-space-3);
        white-space: nowrap;
    }
    
    .nav-text {
        display: none;
    }
    
    .sessions-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-container {
        max-width: none;
    }
    
    .quick-filters {
        overflow-x: auto;
    }
}

/* ============================================================================
   Language Switcher with Flags
   ============================================================================ */

.lang-switcher {
    display: flex;
    gap: 0.25rem;
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-lg);
    padding: 0.25rem;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.625rem;
    background: transparent;
    border: none;
    border-radius: var(--tg-radius-md);
    cursor: pointer;
    transition: all var(--tg-transition-fast);
    color: var(--tg-text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
}

.lang-btn:hover {
    background: var(--tg-bg-tertiary);
    color: var(--tg-text);
}

.lang-btn.active {
    background: var(--tg-accent);
    color: white;
}

.lang-flag {
    font-size: 1rem;
    line-height: 1;
}

.lang-code {
    font-family: inherit;
}

/* ============================================================================
   Theme Transition Animations
   ============================================================================ */

/* Smooth color transitions for theme switching */
html, html * {
    transition-property: background-color, border-color, color, fill, stroke, box-shadow;
    transition-duration: 0.25s;
    transition-timing-function: ease-out;
}

/* Disable transitions during page load to prevent flash */
html.no-transition, html.no-transition * {
    transition: none !important;
}

/* Page transition animations */
.page-enter {
    opacity: 0;
    transform: translateY(10px);
}

.page-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.page-leave {
    opacity: 1;
    transform: translateY(0);
}

.page-leave-active {
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Content fade animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

.fade-out {
    animation: fadeOut 0.2s ease forwards;
}

/* Card hover animations */
.session-card,
.stat-card,
.widget-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.25s ease;
}

.session-card:hover,
.stat-card:hover,
.widget-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--tg-shadow-lg);
}

/* Button press effect */
.btn, button {
    transition: transform 0.1s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}

.btn:active, button:active {
    transform: scale(0.98);
}

/* Sidebar slide animation */
.sidebar {
    transition: transform 0.3s ease, width 0.3s ease;
}

.sidebar.collapsed {
    transform: translateX(-100%);
}

/* Modal animations */
.modal-overlay {
    animation: fadeIn 0.2s ease;
}

.modal-content {
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Toast slide in animation */
.toast {
    animation: toastSlideIn 0.3s ease forwards;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================================================
   Loading Skeleton Animations
   ============================================================================ */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--tg-bg-tertiary) 25%,
        var(--tg-bg-secondary) 50%,
        var(--tg-bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
    border-radius: var(--tg-radius-md);
}

@keyframes skeleton-shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Skeleton card */
.skeleton-card {
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-lg);
    padding: var(--tg-space-4);
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-3);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.skeleton-line {
    height: 1rem;
    border-radius: var(--tg-radius-sm);
}

.skeleton-line.short {
    width: 40%;
}

.skeleton-line.medium {
    width: 70%;
}

.skeleton-line.long {
    width: 100%;
}

/* Session card skeleton */
.session-card-skeleton {
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-lg);
    padding: var(--tg-space-4);
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-3);
    min-height: 140px;
}

.session-card-skeleton .skeleton-header {
    display: flex;
    align-items: center;
    gap: var(--tg-space-3);
}

.session-card-skeleton .skeleton-body {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-2);
}

.session-card-skeleton .skeleton-footer {
    display: flex;
    justify-content: space-between;
    margin-top: auto;
}

/* Grid skeleton loader */
.sessions-skeleton {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--tg-space-4);
    padding: var(--tg-space-4);
}

/* Table skeleton */
.table-skeleton {
    display: flex;
    flex-direction: column;
    gap: var(--tg-space-2);
}

.table-skeleton-row {
    display: flex;
    gap: var(--tg-space-4);
    padding: var(--tg-space-3);
    background: var(--tg-bg-secondary);
    border-radius: var(--tg-radius-md);
}

.table-skeleton-row .skeleton {
    flex: 1;
    height: 1rem;
}

/* ============================================================================
   Enhanced Responsive Design (Mobile First)
   ============================================================================ */

/* Small phones */
@media (max-width: 480px) {
    :root {
        --tg-space-base: 0.875rem;
    }
    
    .app-header {
        padding: var(--tg-space-2) var(--tg-space-3);
    }
    
    .logo-text {
        display: none;
    }
    
    .header-nav {
        display: none;
    }
    
    /* Mobile bottom navigation */
    .mobile-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--tg-bg);
        border-top: 1px solid var(--tg-border);
        padding: var(--tg-space-2);
        justify-content: space-around;
        z-index: 100;
    }
    
    .mobile-nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.25rem;
        padding: var(--tg-space-2);
        color: var(--tg-text-secondary);
        text-decoration: none;
        font-size: 0.625rem;
        transition: color var(--tg-transition-fast);
    }
    
    .mobile-nav-item.active {
        color: var(--tg-accent);
    }
    
    .mobile-nav-item .nav-icon {
        font-size: 1.25rem;
    }
    
    .page-content {
        padding-bottom: 70px; /* Space for mobile nav */
    }
    
    .sessions-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--tg-space-3);
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .session-stats {
        flex-wrap: wrap;
        gap: var(--tg-space-2);
    }
    
    .sessions-container.view-grid {
        grid-template-columns: 1fr;
    }
    
    .session-card {
        padding: var(--tg-space-3);
    }
    
    .bulk-actions-toolbar {
        flex-wrap: wrap;
        padding: var(--tg-space-2);
    }
    
    .bulk-actions-toolbar .action-btn {
        flex: 1;
        min-width: 80px;
        justify-content: center;
    }
    
    .finance-grid {
        gap: var(--tg-space-3);
    }
    
    .wallet-card,
    .tariff-card {
        padding: var(--tg-space-3);
    }
    
    .wallet-balance {
        font-size: 1.75rem;
    }
    
    .modal-content {
        margin: var(--tg-space-2);
        max-height: calc(100vh - 2rem);
        border-radius: var(--tg-radius-lg);
    }
    
    .lang-switcher {
        gap: 0.125rem;
        padding: 0.125rem;
    }
    
    .lang-btn {
        padding: 0.25rem 0.375rem;
    }
    
    .lang-code {
        display: none;
    }
}

/* Tablets */
@media (min-width: 481px) and (max-width: 1024px) {
    .sessions-container.view-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .finance-grid {
        grid-template-columns: 1fr;
    }
    
    .automation-page {
        grid-template-columns: 1fr;
    }
    
    .god-view-container {
        flex-direction: column;
    }
    
    .god-view-sidebar {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--tg-border);
    }
}

/* Desktop large screens */
@media (min-width: 1440px) {
    .sessions-container.view-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .app-container {
        max-width: 1600px;
        margin: 0 auto;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .session-card:hover {
        transform: none;
    }
    
    .btn:hover {
        transform: none;
    }
    
    /* Larger touch targets */
    .btn, button, .nav-link, .tab-btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .quick-filter-btn {
        min-height: 40px;
        padding: var(--tg-space-2) var(--tg-space-4);
    }
    
    /* Disable hover effects */
    .session-card:hover,
    .stat-card:hover,
    .widget-card:hover {
        box-shadow: var(--tg-shadow);
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .skeleton {
        animation: none;
        background: var(--tg-bg-tertiary);
    }
}

/* Print styles */
@media print {
    .app-header,
    .mobile-nav,
    .sidebar,
    .bulk-actions-toolbar,
    .theme-toggle,
    .lang-switcher {
        display: none !important;
    }
    
    .page-content {
        padding: 0;
    }
    
    .sessions-container {
        display: block;
    }
    
    .session-card {
        break-inside: avoid;
        margin-bottom: 1rem;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}