/* ============================================
   CSS Variables & Design Tokens
   ============================================ */
:root {
    /* Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);

    --color-primary: #667eea;
    --color-primary-dark: #5568d3;
    --color-secondary: #764ba2;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;

    --bg-primary: #0f1419;
    --bg-secondary: #1a1f2e;
    --bg-tertiary: #252b3b;
    --bg-card: rgba(37, 43, 59, 0.6);
    --bg-hover: rgba(102, 126, 234, 0.1);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-color: rgba(148, 163, 184, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ============================================
   Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

/* Animated background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.15) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: bgPulse 10s ease-in-out infinite;
}

@keyframes bgPulse {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

/* ============================================
   Navigation Bar
   ============================================ */
.navbar {
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.brand-icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
    animation: rotate 20s linear infinite;
}

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

    to {
        transform: rotate(360deg);
    }
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: var(--spacing-sm);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.nav-link svg {
    width: 20px;
    height: 20px;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transform: translateY(100%);
    transition: all var(--transition-base);
}

.nav-link:hover::before,
.nav-link.active::before {
    opacity: 0.1;
    transform: translateY(0);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--bg-hover);
}

/* Dropdown Navigation */
.nav-dropdown {
    position: relative;
}

.nav-dropdown .dropdown-arrow {
    width: 16px;
    height: 16px;
    margin-left: auto;
    transition: transform var(--transition-base);
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: 1000;
    margin-top: 0.5rem;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown-menu .nav-link {
    width: 100%;
    border-radius: 0;
}

.nav-dropdown-menu .nav-link:first-child {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.nav-dropdown-menu .nav-link:last-child {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.nav-link-sub {
    padding-left: var(--spacing-md);
    font-size: 0.9rem;
}

.nav-link-sub svg {
    width: 18px;
    height: 18px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.page {
    display: none;
    animation: fadeIn var(--transition-slow);
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-header {
    margin-bottom: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.page-header h2 {
    font-size: 2rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: var(--spacing-xs);
}

/* ============================================
   Stats Grid (Dashboard)
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card:hover::before {
    opacity: 0.05;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.stat-icon.blue {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(37, 99, 235, 0.2) 100%);
}

.stat-icon.green {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2) 0%, rgba(5, 150, 105, 0.2) 100%);
}

.stat-icon.purple {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.2) 0%, rgba(126, 34, 206, 0.2) 100%);
}

.stat-icon.orange {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(217, 119, 6, 0.2) 100%);
}

.stat-icon svg {
    width: 28px;
    height: 28px;
}

.stat-icon.blue svg {
    color: #3b82f6;
}

.stat-icon.green svg {
    color: #10b981;
}

.stat-icon.purple svg {
    color: #a855f7;
}

.stat-icon.orange svg {
    color: #f59e0b;
}

.stat-content {
    flex: 1;
}

.stat-content h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ============================================
   Quick Actions
   ============================================ */
/* ============================================
   System Resources
   ============================================ */
.system-resources {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.system-resources h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.resource-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

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

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

.resource-value {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 3px;
    transition: width 0.5s ease;
}

/* ============================================
   Search & Filter Bars
   ============================================ */
.search-bar,
.filter-bar {
    margin-bottom: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.search-bar {
    position: relative;
    max-width: 500px;
}

.search-bar svg {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
}

.search-bar input,
.filter-bar input,
.filter-bar select {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 2.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all var(--transition-base);
}

.filter-bar select {
    flex: 0 0 200px;
    padding-left: var(--spacing-md);
}

.filter-bar input {
    max-width: 300px;
}

.search-bar input:focus,
.filter-bar input:focus,
.filter-bar select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ============================================
   Data Container & Cards
   ============================================ */
.data-container {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    min-height: 400px;
}

.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.user-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.user-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.user-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.user-card:hover::before {
    opacity: 1;
}

.user-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.user-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.user-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.user-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.user-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.user-detail-item label {
    color: var(--text-secondary);
}

.user-detail-item span {
    color: var(--text-primary);
    font-weight: 500;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge.success {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

.badge.warning {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

.badge.danger {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

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

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

thead {
    background: var(--bg-tertiary);
}

th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
}

td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

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

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

.action-btns {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-icon {
    padding: var(--spacing-xs);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

.btn-icon.danger:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

/* ============================================
   Logs
   ============================================ */
.logs-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-height: 70vh;
    overflow-y: auto;
}

.log-entry {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-left: 4px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-sm);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.log-entry:hover {
    background: var(--bg-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.log-entry.online {
    border-left-color: var(--color-success);
    background: linear-gradient(to right, rgba(16, 185, 129, 0.05), var(--bg-tertiary));
}

.log-entry.offline {
    border-left-color: var(--color-danger);
    background: linear-gradient(to right, rgba(239, 68, 68, 0.05), var(--bg-tertiary));
}

.log-entry.warning {
    border-left-color: var(--color-warning);
    background: linear-gradient(to right, rgba(245, 158, 11, 0.05), var(--bg-tertiary));
}

.log-entry.info {
    border-left-color: var(--color-info);
    background: linear-gradient(to right, rgba(59, 130, 246, 0.05), var(--bg-tertiary));
}

.log-status {
    flex-shrink: 0;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-top: 0.5rem;
    animation: pulse 2s ease-in-out infinite;
}

.log-status.online {
    background: var(--color-success);
    box-shadow: 0 0 12px var(--color-success);
}

.log-status.offline {
    background: var(--color-danger);
    box-shadow: 0 0 12px var(--color-danger);
}

.log-status.warning {
    background: var(--color-warning);
    box-shadow: 0 0 12px var(--color-warning);
}

.log-status.info {
    background: var(--color-info);
    box-shadow: 0 0 12px var(--color-info);
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(1.1);
    }
}

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

.log-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.log-time {
    display: flex;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    font-family: 'Monaco', 'Courier New', monospace;
}

.log-message {
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.6;
    word-break: break-word;
}

.badge-online,
.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-offline,
.badge-error {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-info {
    background: rgba(59, 130, 246, 0.15);
    color: #3b82f6;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* ============================================
   Buttons
   ============================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.btn-primary svg {
    width: 18px;
    height: 18px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

/* ============================================
   Loading State
   ============================================ */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.loading::after {
    content: '';
    width: 24px;
    height: 24px;
    margin-left: var(--spacing-md);
    border: 3px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* ============================================
   Modal Dialogs
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
    animation: modalFadeIn var(--transition-base);
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: overlayFadeIn var(--transition-base);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    z-index: 1;
    animation: modalSlideIn var(--transition-slow);
    overflow: hidden;
}

.modal-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.modal-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.modal-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

textarea.modal-input {
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
}

.full-width {
    width: 100%;
}

.modal-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    background: var(--bg-tertiary);
}

.modal-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    min-width: 100px;
}

.modal-btn-cancel {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.modal-btn-cancel:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.modal-btn-confirm {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
}

.modal-btn-confirm:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.modal-btn-confirm.danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes overlayFadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Chart Modal Styles */
.modal-content-large {
    max-width: 900px;
    width: 95%;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.modal-close svg {
    width: 24px;
    height: 24px;
}

.chart-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.chart-stat {
    text-align: center;
}

.chart-stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.chart-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.chart-stat-value.online {
    color: var(--color-success);
}

.chart-stat-value.offline {
    color: var(--color-danger);
}

.chart-container {
    position: relative;
    height: 400px;
    background: var(--bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

/* Plan Modal Styles */
.plan-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.plan-option {
    cursor: pointer;
}

.plan-option input {
    display: none;
}

.plan-card {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.plan-option input:checked+.plan-card {
    border-color: var(--color-primary);
    background: rgba(59, 130, 246, 0.1);
}

.plan-name {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

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

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet and below - 768px */
@media (max-width: 768px) {
    .nav-container {
        padding: var(--spacing-md);
    }

    .mobile-menu-toggle {
        display: flex;
        width: 44px;
        height: 44px;
        padding: var(--spacing-sm);
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
        z-index: 999;
    }

    .nav-links.active {
        max-height: 500px;
    }

    .nav-link {
        padding: var(--spacing-md) var(--spacing-lg);
        border-radius: 0;
        min-height: 48px;
    }

    .nav-link svg {
        width: 24px;
        height: 24px;
    }

    .main-content {
        padding: var(--spacing-md);
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .page-header h2 {
        font-size: 1.75rem;
    }

    .page-header .subtitle {
        font-size: 0.95rem;
    }

    /* Button improvements */
    .btn-primary,
    .btn-secondary {
        min-height: 48px;
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 0.95rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .resources-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

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

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

    .search-bar,
    .filter-bar {
        max-width: 100%;
    }

    .search-bar input {
        font-size: 16px;
        /* Prevent zoom on iOS */
        min-height: 48px;
    }

    .filter-bar {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .filter-bar select,
    .filter-bar input {
        flex: 1;
        max-width: 100%;
        min-height: 48px;
        font-size: 16px;
    }

    /* Table responsiveness with horizontal scroll */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 calc(-1 * var(--spacing-md));
        padding: 0 var(--spacing-md);
    }

    .table-responsive::after {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        width: 30px;
        background: linear-gradient(to left, var(--bg-primary), transparent);
        pointer-events: none;
    }

    table {
        font-size: 0.9rem;
        min-width: 600px;
        /* Force horizontal scroll */
    }

    th,
    td {
        padding: var(--spacing-sm) var(--spacing-xs);
        white-space: nowrap;
    }

    th:first-child,
    td:first-child {
        padding-left: var(--spacing-md);
    }

    /* Action buttons in tables */
    .action-btns {
        gap: var(--spacing-xs);
    }

    .btn-icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
    }

    /* Modal improvements */
    .modal-content {
        width: 95%;
        max-width: none;
        margin: var(--spacing-md);
    }

    .modal-footer {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .modal-btn {
        width: 100%;
        min-height: 48px;
    }

    .modal-input {
        min-height: 48px;
        font-size: 16px;
    }

    /* Resource cards */
    .resource-card {
        padding: var(--spacing-md);
    }

    .resource-label {
        font-size: 0.85rem;
    }

    .resource-value {
        font-size: 1.25rem;
    }

    /* Stat cards */
    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-content h3 {
        font-size: 1.5rem;
    }

    .stat-content p {
        font-size: 0.85rem;
    }
}

/* Medium mobile devices - 640px */
@media (max-width: 640px) {
    .page-header h2 {
        font-size: 1.5rem;
    }

    .nav-brand h1 {
        font-size: 1.25rem;
    }

    /* Optimize card layouts */
    .user-card {
        padding: var(--spacing-md);
    }

    .user-avatar {
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }

    .user-info h4 {
        font-size: 1rem;
    }

    .user-info p {
        font-size: 0.8rem;
    }

    /* Contact items */
    .contact-list-item {
        padding: var(--spacing-sm);
    }

    /* Logs */
    .log-entry {
        padding: var(--spacing-sm);
    }

    .log-message {
        font-size: 0.85rem;
    }

    /* Plan cards */
    .plan-card {
        padding: var(--spacing-md);
    }

    .plan-title {
        font-size: 1.1rem;
    }

    .plan-features .feature {
        font-size: 0.85rem;
        padding: var(--spacing-xs) 0;
    }
}

/* Small mobile devices - 480px */
@media (max-width: 480px) {
    .nav-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .nav-brand h1 {
        font-size: 1.1rem;
    }

    .brand-icon {
        width: 28px;
        height: 28px;
    }

    .page-header h2 {
        font-size: 1.35rem;
    }

    .main-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    /* Stat cards - stack vertically */
    .stat-card {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
    }

    .stat-icon {
        margin: 0 auto;
        width: 50px;
        height: 50px;
    }

    .stat-icon svg {
        width: 28px;
        height: 28px;
    }

    .stat-content h3 {
        font-size: 1.75rem;
    }

    .stat-content p {
        font-size: 0.8rem;
    }

    /* Resource cards */
    .resource-card {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .resource-value {
        font-size: 1.5rem;
    }

    .resource-desc {
        font-size: 0.75rem !important;
    }

    /* User cards */
    .user-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }

    .user-avatar {
        margin: 0 auto;
    }

    /* Badges */
    .badge {
        font-size: 0.7rem;
        padding: 0.2rem 0.6rem;
    }

    /* System resources heading */
    .system-resources h3 {
        font-size: 1.1rem;
    }

    /* Table further optimization */
    table {
        font-size: 0.85rem;
    }

    /* Chart modal */
    .chart-modal .modal-content {
        width: 100%;
        height: 90vh;
        margin: 0;
        border-radius: var(--radius-md) var(--radius-md) 0 0;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
    }

    /* Plan options in modal */
    .plan-options {
        gap: var(--spacing-sm);
    }

    .plan-card {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* Extra small devices - 375px and below */
@media (max-width: 375px) {
    .nav-brand h1 {
        font-size: 1rem;
    }

    .page-header h2 {
        font-size: 1.25rem;
    }

    .stat-content h3 {
        font-size: 1.5rem;
    }

    .resource-value {
        font-size: 1.25rem;
    }

    /* Reduce padding further */
    .main-content {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}


/* ============================================
   Contact Submissions
   ============================================ */
.contact-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Contact List Item (Compact View) */
.contact-list-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.contact-list-item.unread {
    border-left: 3px solid var(--color-warning);
    background: rgba(245, 158, 11, 0.05);
}

.contact-list-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.contact-list-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    gap: var(--spacing-md);
}

.contact-list-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    min-width: 0;
}

.contact-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.contact-avatar.large {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
}

.contact-list-details {
    flex: 1;
    min-width: 0;
}

.contact-list-name {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: 0.25rem;
}

.contact-list-name h4 {
    font-size: 1rem;
    margin: 0;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-list-email {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-list-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

.contact-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.badge.info {
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}

.contact-list-subject {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.contact-list-subject strong {
    font-weight: 600;
}

.contact-list-preview {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Contact Detail Modal */
.contact-detail {
    padding: var(--spacing-md);
}

.contact-detail-header {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.contact-detail-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.contact-detail-info p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.contact-detail-meta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    align-items: center;
}

.contact-detail-section {
    margin-bottom: var(--spacing-lg);
}

.contact-detail-section label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.contact-detail-subject {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.5;
}

.contact-detail-message {
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1.8;
    white-space: pre-wrap;
    word-wrap: break-word;
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
}

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

.modal-btn-primary:hover {
    background: var(--color-primary-dark);
}

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

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

@media (max-width: 768px) {
    .contact-list-header {
        flex-direction: column;
    }

    .contact-list-meta {
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .contact-detail-header {
        flex-direction: column;
        text-align: center;
    }

    .contact-avatar.large {
        margin: 0 auto;
    }

    .contact-detail-meta {
        justify-content: center;
    }
}

/* Pagination */
.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.pagination-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

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

/* Enhanced Plan Modal Styles */
.plan-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.plan-card {
    padding: var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.plan-option input:checked+.plan-card {
    border-color: var(--color-primary);
    background: rgba(59, 130, 246, 0.05);
    box-shadow: var(--shadow-md);
}

.plan-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.plan-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
}

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

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

.plan-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.feature svg {
    width: 16px;
    height: 16px;
    color: var(--color-success);
}

/* Plan Specific Styles */
/* Free */
.plan-free .plan-icon {
    color: var(--text-secondary);
}

.plan-option input:checked+.plan-free {
    border-color: var(--text-secondary);
    background: rgba(148, 163, 184, 0.05);
}

/* Plus */
.plan-plus .plan-icon {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.1);
}

.plan-option input:checked+.plan-plus {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.05);
}

/* Pro */
.plan-pro .plan-icon {
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.1);
}

.plan-option input:checked+.plan-pro {
    border-color: #f59e0b;
    background: rgba(245, 158, 11, 0.05);
}

/* Unlimited */
.plan-unlimited .plan-icon {
    color: #a855f7;
    background: rgba(168, 85, 247, 0.1);
}

.plan-option input:checked+.plan-unlimited {
    border-color: #a855f7;
    background: rgba(168, 85, 247, 0.05);
}

/* ============================================
   Mobile Responsiveness (Added)
   ============================================ */
@media (max-width: 768px) {

    /* Servers Table Mobile Compact Card View */
    #serversContent table,
    #serversContent thead,
    #serversContent tbody,
    #serversContent th,
    #serversContent td,
    #serversContent tr {
        display: block;
    }

    #serversContent thead tr,
    #serversContent th {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }

    #serversContent tr {
        display: grid;
        grid-template-columns: 1fr auto;
        /* Name takes space, Latency auto */
        grid-template-areas:
            "name latency"
            "address address";
        gap: 2px 8px;
        /* Row gap 2px, Col gap 8px */

        margin-bottom: var(--spacing-sm);
        /* Reduced margin */
        padding: var(--spacing-md);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        background: var(--bg-tertiary);
        overflow: hidden;
        box-shadow: var(--shadow-sm);

        /* Status indicator stripe */
        border-left: 5px solid var(--text-muted);
        position: relative;
    }

    #serversContent tr.server-row.online {
        border-left-color: var(--color-success);
    }

    #serversContent tr.server-row.warning {
        border-left-color: var(--color-warning);
    }

    #serversContent tr.server-row.offline {
        border-left-color: var(--color-danger);
    }

    /* Reset TD Styles */
    #serversContent td {
        border: none;
        padding: 0;
        min-height: auto;
        text-align: left;
    }

    #serversContent td::before {
        content: none !important;
        /* HIde all labels */
    }

    /* 1. Server Name (Top-Left) */
    #serversContent td[data-label="Server Name"] {
        grid-area: name;
        font-size: 1rem;
        color: var(--text-primary);
        font-weight: 600;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* 2. Latency (Top-Right) */
    #serversContent td[data-label="Latency"] {
        grid-area: latency;
        text-align: right;
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--text-primary);
    }

    /* 3. Address IP:Port (Bottom-Left) */
    #serversContent td[data-label="Address"] {
        grid-area: address;
        font-size: 0.85rem;
        color: var(--text-muted);
        font-family: monospace;
        letter-spacing: 0.5px;
    }

    /* HIDE UNWANTED COLUMNS */
    #serversContent td[data-label="Owner"],
    #serversContent td[data-label="Status"],
    #serversContent td[data-label="Last Updated"],
    #serversContent td:last-child {
        /* Actions column */
        display: none !important;
    }

    /* Modal Mobile Adjustments */
    .modal-content {
        width: 95%;
        margin: var(--spacing-md);
        max-height: 85vh;
        overflow-y: auto;
    }

    .modal-content-large {
        width: 100%;
        height: 100%;
        margin: 0;
        border-radius: 0;
        max-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    .modal-content-large .modal-body {
        flex: 1;
        overflow-y: auto;
        padding-bottom: 80px;
        /* Space for bottom interaction */
    }

    .chart-info {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .chart-stat {
        padding: var(--spacing-sm);
    }

    .chart-stat-value {
        font-size: 1.1rem;
    }

    .chart-container {
        height: 300px;
        margin-top: var(--spacing-md);
    }
}

/* ============================================
   Server Detail Modal
   ============================================ */
.modal-content-xl {
    max-width: 1000px;
    width: 95%;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}

/* Header */
.server-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.server-status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--text-muted);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.server-status-indicator.online {
    background-color: var(--color-success);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

.server-status-indicator.offline {
    background-color: var(--color-danger);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.4);
}

.server-status-indicator.warning {
    background-color: var(--color-warning);
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.4);
}

.server-title-group {
    display: flex;
    flex-direction: column;
}

.server-title-group h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.2;
}

.server-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.external-link-icon {
    width: 14px;
    height: 14px;
    opacity: 0.7;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Modal Body */
.server-detail-body {
    padding: var(--spacing-lg) 0 0 0;
    overflow-y: auto;
    flex: 1;
}

/* Stats Grid */
.server-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.detail-stat-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.detail-stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.detail-stat-value.success {
    color: var(--color-success);
}

.detail-stat-value.danger {
    color: var(--color-danger);
}

.detail-stat-value.warning {
    color: var(--color-warning);
}

/* Main Content Layout */
.server-detail-main {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-lg);
}

@media (max-width: 850px) {
    .server-detail-main {
        grid-template-columns: 1fr;
    }
}

.detail-section {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.section-header h4,
.detail-section h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
}

/* --- Kuma Style Modal --- */

.server-detail-stack {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
}

/* Top Section: Heartbeat & Badge */
.kuma-top-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    justify-content: space-between;
}

.kuma-heartbeat-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
}

.kuma-hb-container {
    display: flex;
    gap: 4px;
    /* Distinct spacing */
    width: 100%;
    height: 30px;
    align-items: center;
}

.kuma-pill {
    flex: 1;
    height: 100%;
    background-color: var(--bg-tertiary);
    /* Grey for empty/pending */
    border-radius: 4px;
    /* Rounded pills */
    transition: all 0.2s;
    cursor: pointer;
    position: relative;
    min-width: 6px;
}

.kuma-pill:hover {
    transform: scaleY(1.15);
    z-index: 10;
}

.kuma-pill.online {
    background-color: #10b981;
}

.kuma-pill.offline {
    background-color: #ef4444;
}

.kuma-pill.warning {
    background-color: #f59e0b;
}

.kuma-pill.empty {
    background-color: rgba(148, 163, 184, 0.1);
}

/* Filters */
.chart-filters {
    display: flex;
    gap: 4px;
    background: var(--bg-tertiary);
    padding: 4px;
    border-radius: 6px;
}

.filter-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.filter-btn.active {
    background: var(--primary-color);
    color: #fff;
    font-weight: 500;
}

/* Status Badge - Removed from HTML but keeping CSS just in case needed elsewhere or reused */
.kuma-status-wrapper {
    flex-shrink: 0;
}

.kuma-status-badge {
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    background-color: var(--bg-tertiary);
}

.kuma-status-badge.online {
    background-color: #10b981;
    color: #fff;
}

.kuma-status-badge.offline {
    background-color: #ef4444;
    color: #fff;
}

.kuma-status-badge.warning {
    background-color: #f59e0b;
    color: #fff;
}

.kuma-meta-row {
    margin-top: -10px;
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Stats Row */
.kuma-stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.kuma-stat-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.kuma-stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.kuma-stat-sublabel {
    font-size: 0.7rem;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.kuma-stat-value {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.kuma-stat-value.link {
    font-size: 1rem;
    text-decoration: underline;
    color: var(--primary-color);
    cursor: pointer;
}

/* Chart Container */
.kuma-chart-section {
    padding-top: var(--spacing-md);
}

.kuma-chart-container {
    height: 350px;
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    position: relative;
}

/* Tooltip (Reuse existing logic or add specific) */
.kuma-tooltip {
    /* ... similar to heartbeat-tooltip ... */
    position: absolute;
    bottom: 110%;
    left: 50%;
    transform: translateX(-50%);
    background: #000;
    color: #fff;
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 20;
    border: 1px solid #333;
}

.kuma-pill:hover .kuma-tooltip {
    opacity: 1;
}

/* Info List */
.info-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.info-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.info-item .label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.info-item .value {
    color: var(--text-primary);
    font-family: monospace;
    font-size: 0.95rem;
}