/*NexFlow Dashboard Stylesheet - Premium Dark & Glassmorphism Design System */

:root {
    /* Color Palette */
    --bg-dark: #080b11;
    --bg-main: #0c101b;
    --sidebar-bg: rgba(13, 17, 28, 0.7);
    --card-bg: rgba(20, 27, 45, 0.5);
    --card-border: rgba(255, 255, 255, 0.06);
    --card-hover-border: rgba(99, 102, 241, 0.3);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    /* Accent Colors */
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --success: #10b981;
    --success-light: #34d399;
    --danger: #f43f5e;
    --warning: #f59e0b;
    
    /* Platform Colors */
    --meta-color: #1877f2;
    --google-color: #ea4335;
    --google-blue: #4285f4;
    
    /* Glows & Shadows */
    --primary-glow: rgba(99, 102, 241, 0.15);
    --success-glow: rgba(16, 185, 129, 0.15);
    --shadow-main: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(168, 85, 247, 0.05) 0px, transparent 50%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scrollbar Styles */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

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

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
}

.sidebar-header {
    padding: 30px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

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

.logo-icon {
    font-size: 24px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
}

.logo-text {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.logo-text span {
    color: var(--primary-light);
    font-weight: 400;
}

.sidebar-nav {
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition-smooth);
}

.nav-item i {
    width: 18px;
    height: 18px;
    transition: var(--transition-smooth);
}

.nav-item:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.nav-item.active {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.15);
    border-left: 3px solid var(--primary);
    font-weight: 600;
}

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

.sidebar-footer {
    padding: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

/* Connection Badges */
.connection-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.badge-demo {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-demo .status-dot {
    background: var(--warning);
    box-shadow: 0 0 8px var(--warning);
}

.badge-connected {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-connected .status-dot {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    margin-left: 260px;
    padding: 40px;
    min-height: 100vh;
    background-color: var(--bg-main);
}

/* Top Header */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 20px;
}

#page-title {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.header-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Custom Selects and Inputs */
.select-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.select-icon {
    position: absolute;
    left: 14px;
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
    pointer-events: none;
}

.custom-select {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 12px 16px 12px 42px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    transition: var(--transition-smooth);
    appearance: none;
    -webkit-appearance: none;
}

.custom-select:focus, .custom-select:hover {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.select-sm {
    padding: 8px 12px 8px 12px;
    font-size: 12px;
}

/* Date Picker styling */
.date-picker-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.custom-date-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
}

.custom-date-inputs.hidden {
    display: none !important;
}

.date-input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
    outline: none;
}

.date-separator {
    color: var(--text-muted);
    font-size: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition-smooth);
}

.btn-icon {
    padding: 12px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
}

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

.btn-secondary:hover {
    border-color: rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.05);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-danger {
    background: rgba(244, 63, 94, 0.1);
    border: 1px solid rgba(244, 63, 94, 0.2);
    color: var(--danger);
}

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

.btn-sm {
    padding: 8px 14px;
    font-size: 12px;
}

/* Demo Mode Banner */
.demo-banner {
    background: linear-gradient(90deg, rgba(245, 158, 11, 0.15) 0%, rgba(200, 100, 10, 0.1) 100%);
    border: 1px solid rgba(245, 158, 11, 0.2);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    margin-bottom: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: fadeIn 0.5s ease-out;
}

.demo-banner.hidden {
    display: none;
}

.banner-content {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: rgba(245, 158, 11, 0.9);
}

.banner-content i {
    width: 20px;
    height: 20px;
}

/* KPI Cards Section */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-main);
    transition: var(--transition-smooth);
}

.kpi-card:hover {
    border-color: var(--card-hover-border);
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.4);
}

.kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.kpi-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.kpi-icon-wrapper {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.kpi-icon-wrapper i {
    width: 18px;
    height: 18px;
}

/* KPI Icon Background Variants */
.color-invest {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
}
.color-leads {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}
.color-cpl {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}
.color-roi {
    background: rgba(168, 85, 247, 0.1);
    color: #c084fc;
}

.kpi-value {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.kpi-footer {
    display: flex;
    align-items: center;
    gap: 8px;
}

.kpi-trend {
    font-size: 12px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 12px;
}

.trend-up {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.trend-down {
    background: rgba(244, 63, 94, 0.1);
    color: var(--danger);
}

.trend-neutral {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
}

.kpi-period {
    font-size: 12px;
    color: var(--text-muted);
}

/* Secondary KPIs Grid */
.secondary-kpis {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.kpi-card.mini {
    padding: 18px 20px;
}

.mini-value-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
}

.mini-value {
    font-size: 20px;
    font-weight: 700;
}

.mini-trend {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
}

/* Charts Grid */
.charts-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.charts-container.full-width {
    grid-template-columns: 1fr;
}

.chart-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-main);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.chart-title-group h3 {
    font-size: 18px;
    font-weight: 700;
}

.chart-title-group p {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.chart-actions {
    display: flex;
    gap: 16px;
}

.chart-legend-item {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-color {
    width: 10px;
    height: 10px;
    border-radius: 30%;
    display: inline-block;
}

.legend-color.spent {
    background: var(--primary);
}

.legend-color.leads {
    background: var(--success);
}

.chart-body {
    min-height: 320px;
    position: relative;
}

.pie-chart-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 320px;
}

/* Table Card Section */
.table-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-main);
    margin-bottom: 40px;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.table-title-group h3 {
    font-size: 18px;
    font-weight: 700;
}

.table-title-group p {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.table-filters {
    display: flex;
    gap: 12px;
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-wrapper i {
    position: absolute;
    left: 12px;
    width: 16px;
    height: 16px;
    color: var(--text-muted);
    pointer-events: none;
}

#campaign-search {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 10px 16px 10px 38px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    outline: none;
    width: 220px;
    transition: var(--transition-smooth);
}

#campaign-search:focus {
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.05);
    width: 280px;
}

.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

.data-table th {
    padding: 14px 16px;
    color: var(--text-secondary);
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table td {
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.01);
}

.text-right {
    text-align: right;
}

/* Badges for platforms & status */
.platform-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 6px;
}

.badge-meta {
    background: rgba(24, 119, 242, 0.1);
    color: #4da3ff;
    border: 1px solid rgba(24, 119, 242, 0.2);
}

.badge-google {
    background: rgba(234, 67, 53, 0.1);
    color: #ff8c82;
    border: 1px solid rgba(234, 67, 53, 0.2);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 12px;
}

.status-active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.status-paused {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
}

/* Tabs Toggle Content */
.tab-content {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.tab-content.active-tab {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Platform Overview Intro Cards */
.platform-overview-card {
    border-radius: var(--radius-md);
    padding: 30px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--card-border);
}

.platform-overview-card.meta-theme {
    background: linear-gradient(135deg, rgba(24, 119, 242, 0.15) 0%, rgba(13, 20, 36, 0.5) 100%);
    border-left: 4px solid var(--meta-color);
}

.platform-overview-card.google-theme {
    background: linear-gradient(135deg, rgba(66, 133, 244, 0.12) 0%, rgba(13, 20, 36, 0.5) 100%);
    border-left: 4px solid var(--google-blue);
}

.platform-logo-bg {
    position: absolute;
    right: -20px;
    bottom: -30px;
    font-size: 120px;
    opacity: 0.05;
    color: var(--text-primary);
}

.platform-overview-card h2 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.platform-overview-card p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Settings View Layout */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.settings-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-main);
}

.settings-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.settings-card-header i {
    width: 22px;
    height: 22px;
    color: var(--primary-light);
}

.settings-card-header h3 {
    font-size: 18px;
    font-weight: 700;
}

.settings-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    outline: none;
    transition: var(--transition-smooth);
}

.form-control:focus {
    border-color: var(--primary);
    background: rgba(255,255,255,0.04);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.help-block {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
}

.inline-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.inline-checkbox input {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

.inline-checkbox label {
    margin-bottom: 0;
    cursor: pointer;
}

.settings-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

/* Connection tests outputs */
.connection-result {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    animation: fadeIn 0.3s ease-out;
}

.connection-result.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-light);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.connection-result.error {
    background: rgba(244, 63, 94, 0.1);
    color: var(--danger);
    border: 1px solid rgba(244, 63, 94, 0.2);
}

/* Client Add Section */
.client-add-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.clients-list-container h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    padding-bottom: 6px;
}

.clients-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.client-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
}

.client-item-info {
    display: flex;
    flex-direction: column;
}

.client-item-info span:first-child {
    font-weight: 600;
}

.client-item-info span:last-child {
    font-size: 11px;
    color: var(--text-muted);
}

.btn-remove-client {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition-smooth);
}

.btn-remove-client:hover {
    color: var(--danger);
    background: rgba(244, 63, 94, 0.1);
}

/* Documentation Code Box */
.doc-card {
    margin-top: 24px;
}

.code-block {
    background: #05070a;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 18px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    color: #a7b5cc;
    max-height: 350px;
}

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

/* Responsive adjustments */
@media (max-width: 1200px) {
    .charts-container {
        grid-template-columns: 1fr;
    }
    
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .sidebar {
        width: 70px;
        padding: 10px 0;
    }
    
    .logo-text, .nav-item span, .connection-status span:not(.status-dot) {
        display: none;
    }
    
    .logo {
        justify-content: center;
    }
    
    .nav-item {
        justify-content: center;
        padding: 12px;
    }
    
    .sidebar-footer {
        padding: 16px 0;
        display: flex;
        justify-content: center;
    }
    
    .main-content {
        margin-left: 70px;
        padding: 24px;
    }
    
    .top-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-right {
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 600px) {
    .header-right {
        flex-direction: column;
        align-items: stretch;
    }
    
    .date-picker-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .custom-date-inputs {
        flex-direction: column;
        align-items: stretch;
    }
    
    .demo-banner {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .table-filters {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }
    
    #campaign-search {
        width: 100%;
    }
    
    #campaign-search:focus {
        width: 100%;
    }
}

/* Login Screen Overlay */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(168, 85, 247, 0.08) 0px, transparent 50%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: var(--transition-smooth);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.login-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.login-card {
    background: rgba(20, 27, 45, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-main);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    animation: fadeIn 0.5s ease-out;
}

.user-info-sidebar {
    font-weight: 500;
    opacity: 0.8;
}

.hidden {
    display: none !important;
}

.spin-animation {
    animation: spin 1.2s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}