:root {
    --primary-color: #007bff;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --border-color: #dee2e6;
    --text-color: #212529;
    --sidebar-width: 250px;
    
    /* Light theme colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --card-bg: #ffffff;
    --sidebar-bg: #343a40;
    --sidebar-text: #ffffff;
    --border-light: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

/* Dark theme */
body.dark-mode {
    --bg-primary: #1a1d23;
    --bg-secondary: #252930;
    --bg-tertiary: #2f3541;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --card-bg: #252930;
    --sidebar-bg: #1a1d23;
    --sidebar-text: #e0e0e0;
    --border-light: #404552;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    transition: transform 0.3s ease, background-color 0.3s ease;
    z-index: 1000;
}

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

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: 1.5rem;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s;
}

.nav-item:hover,
.nav-item.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-item .icon {
    margin-right: 0.75rem;
    font-size: 1.2rem;
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 2rem;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.header h1 {
    font-size: 2rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Overview Cards */
.overview-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    gap: 1rem;
}

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

.stat-card.danger {
    border-left: 4px solid var(--danger-color);
}

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

.stat-icon {
    font-size: 2rem;
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: #6c757d;
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 600;
}

/* Card */
.card {
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow-color);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 8px var(--shadow-color);
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
}

.card-actions {
    display: flex;
    gap: 0.5rem;
}

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

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

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

th {
    font-weight: 600;
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

tr:hover {
    background-color: var(--bg-tertiary);
    transition: background-color 0.2s ease;
}

/* Status Badge */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-badge.status-up {
    background-color: #d4edda;
    color: #155724;
}

.status-badge.status-down {
    background-color: #f8d7da;
    color: #721c24;
}

.status-badge.status-timeout {
    background-color: #fff3cd;
    color: #856404;
}

.status-badge.status-error {
    background-color: #f8d7da;
    color: #721c24;
}

.status-badge.status-unknown {
    background-color: #e2e3e5;
    color: #383d41;
}

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

.status-up .status-indicator {
    background-color: var(--success-color);
}

.status-down .status-indicator,
.status-error .status-indicator {
    background-color: var(--danger-color);
}

.status-timeout .status-indicator {
    background-color: var(--warning-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    background-color: #0056b3;
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #545b62;
}

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

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

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.375rem;
}

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

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

.badge-warning {
    background-color: var(--warning-color);
    color: #212529;
}

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

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control,
.form-select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.9rem;
}

.form-control[multiple] {
    min-height: 120px;
    padding: 0.25rem;
}

.form-control[multiple] option {
    padding: 0.5rem;
    border-radius: 4px;
    margin: 0.1rem;
}

.form-control[multiple] option:checked {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
}

.form-select {
    width: auto;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
    overflow-y: auto;
    padding: 2rem 0;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: white;
    padding: 2.5rem;
    border-radius: 12px;
    max-width: 900px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    margin: auto;
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e9ecef;
    color: #2c3e50;
}

/* Alert List */
.alert-item {
    padding: 1rem;
    border-left: 4px solid;
    margin-bottom: 0.75rem;
    border-radius: 4px;
    background-color: var(--light-color);
}

.alert-item.alert-down {
    border-left-color: var(--danger-color);
}

.alert-item.alert-recovery {
    border-left-color: var(--success-color);
}

.alert-item.alert-timeout {
    border-left-color: var(--warning-color);
}

.alert-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.alert-time {
    font-size: 0.85rem;
    color: #6c757d;
}

/* Spinner */
.spinner {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 1rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-muted {
    color: #6c757d;
}

.error-message {
    color: var(--danger-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.success-message {
    color: var(--success-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }

    .main-content {
        margin-left: 0;
        padding: 1rem;
    }

    .overview-cards {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

/* Service Detail Modal */
.modal-large {
    max-width: 1200px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #6c757d;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.modal-close:hover {
    background-color: var(--light-color);
    color: var(--danger-color);
}

.service-detail-header {
    margin-bottom: 2rem;
}

.service-detail-status {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.service-detail-name {
    font-size: 1.8rem;
    font-weight: 600;
}

.service-detail-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding: 1rem;
    background-color: var(--light-color);
    border-radius: 8px;
}

.meta-item {
    display: flex;
    flex-direction: column;
}

.meta-label {
    font-size: 0.85rem;
    color: #6c757d;
    margin-bottom: 0.25rem;
}

.meta-value {
    font-weight: 600;
    font-size: 1rem;
}

.detail-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.detail-stat-card {
    background-color: white;
    padding: 1.25rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.detail-stat-label {
    font-size: 0.85rem;
    color: #6c757d;
    margin-bottom: 0.5rem;
}

.detail-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark-color);
}

.detail-section {
    margin-bottom: 2rem;
}

.detail-section h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: var(--dark-color);
}

.chart-container {
    position: relative;
    height: 300px;
    background-color: white;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.uptime-bars {
    display: flex;
    gap: 2px;
    height: 50px;
    background-color: white;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow-x: auto;
}

.uptime-bar {
    flex: 1;
    min-width: 8px;
    border-radius: 2px;
    cursor: pointer;
    position: relative;
    transition: transform 0.2s;
}

.uptime-bar:hover {
    transform: scaleY(1.2);
}

.uptime-bar.status-up {
    background-color: var(--success-color);
}

.uptime-bar.status-down {
    background-color: var(--danger-color);
}

.uptime-bar.status-timeout {
    background-color: var(--warning-color);
}

.uptime-bar.status-error {
    background-color: #6c757d;
}

.detail-table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
}

.detail-table th,
.detail-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.detail-table th {
    background-color: var(--light-color);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark-color);
}

.detail-table tbody tr:hover {
    background-color: #f8f9fa;
}

.check-now-btn {
    cursor: pointer;
    transition: opacity 0.2s;
}

.check-now-btn:hover {
    opacity: 0.7;
}

@media (max-width: 768px) {
    .modal-large {
        width: 98%;
        max-height: 95vh;
    }

    .detail-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

/* Toast Notifications */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 400px;
}

.toast {
    background-color: white;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 300px;
    animation: slideInRight 0.3s ease-out;
    border-left: 4px solid;
    position: relative;
    overflow: hidden;
}

.toast.toast-success {
    border-left-color: var(--success-color);
}

.toast.toast-error {
    border-left-color: var(--danger-color);
}

.toast.toast-info {
    border-left-color: var(--info-color);
}

.toast.toast-warning {
    border-left-color: var(--warning-color);
}

.toast-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--dark-color);
}

.toast-message {
    font-size: 0.9rem;
    color: #6c757d;
}

.toast-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6c757d;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
    flex-shrink: 0;
}

.toast-close:hover {
    background-color: var(--light-color);
    color: var(--danger-color);
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background-color: currentColor;
    animation: toastProgress 3s linear forwards;
}

.toast.toast-success .toast-progress {
    color: var(--success-color);
}

.toast.toast-error .toast-progress {
    color: var(--danger-color);
}

.toast.toast-info .toast-progress {
    color: var(--info-color);
}

.toast.toast-warning .toast-progress {
    color: var(--warning-color);
}

@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

@keyframes toastProgress {
    from {
        width: 100%;
    }
    to {
        width: 0%;
    }
}

.toast.toast-hiding {
    animation: slideOutRight 0.3s ease-out forwards;
}

/* SSL Certificate Info Section */
.ssl-cert-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 8px;
    padding: 1.5rem;
    color: white;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.ssl-cert-section h3 {
    color: white;
    margin-bottom: 1rem;
}

.ssl-cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.ssl-cert-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 6px;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.ssl-cert-card.ssl-cert-highlight {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.ssl-cert-label {
    font-size: 0.85rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.ssl-cert-value {
    font-size: 1rem;
    font-weight: 600;
    word-break: break-word;
}

/* DNS Info Section */
.dns-info-section {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    border-radius: 8px;
    padding: 1.5rem;
    color: white;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.dns-info-section h3 {
    color: white;
    margin-bottom: 1rem;
}

.dns-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.dns-info-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 6px;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.dns-info-label {
    font-size: 0.85rem;
    opacity: 0.95;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.dns-info-value {
    font-size: 1rem;
    font-weight: 600;
    word-break: break-word;
}

.dns-ip-list-container {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.dns-ip-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.dns-ip-list code {
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

@media (max-width: 768px) {
    #toast-container {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }

    .toast {
        min-width: auto;
        width: 100%;
    }
}

/* ============================================
   NEW FEATURES STYLES
   ============================================ */

/* Theme Toggle Button */
.theme-toggle {
    position: relative;
    width: 60px;
    height: 30px;
    background-color: var(--bg-tertiary);
    border-radius: 15px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    padding: 3px;
    border: 2px solid var(--border-light);
}

.theme-toggle-slider {
    width: 24px;
    height: 24px;
    background-color: var(--primary-color);
    border-radius: 50%;
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

body.dark-mode .theme-toggle-slider {
    transform: translateX(30px);
}

.theme-toggle-slider::before {
    content: '☀️';
}

body.dark-mode .theme-toggle-slider::before {
    content: '🌙';
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 2px 8px var(--shadow-color);
}

/* Search Box */
.search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-input {
    width: 100%;
    padding: 0.5rem 2.5rem 0.5rem 1rem;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-size: 0.9rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.search-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

/* View Toggle */
.view-toggle {
    display: flex;
    gap: 0.5rem;
    background-color: var(--bg-tertiary);
    padding: 0.25rem;
    border-radius: 8px;
}

.view-toggle-btn {
    padding: 0.5rem 1rem;
    border: none;
    background-color: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 1.2rem;
}

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

.view-toggle-btn:hover:not(.active) {
    background-color: var(--bg-primary);
}

/* Grid View for Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px var(--shadow-color);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px var(--shadow-color);
    border-color: var(--primary-color);
}

.service-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.service-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.service-card-protocol {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.service-card-target {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    word-break: break-all;
}

.service-card-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.service-card-stat {
    text-align: center;
    padding: 0.75rem;
    background-color: var(--bg-tertiary);
    border-radius: 8px;
}

.service-card-stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

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

.service-card-actions {
    display: flex;
    gap: 0.5rem;
}

.service-card-actions .btn {
    flex: 1;
    justify-content: center;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Time Range Selector */
.time-range-selector {
    display: flex;
    gap: 0.5rem;
    background-color: var(--bg-tertiary);
    padding: 0.25rem;
    border-radius: 8px;
    flex-wrap: wrap;
}

.time-range-btn {
    padding: 0.5rem 1rem;
    border: none;
    background-color: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.85rem;
    font-weight: 500;
}

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

.time-range-btn:hover:not(.active) {
    background-color: var(--bg-primary);
}

/* Export Menu */
.export-dropdown {
    position: relative;
    display: inline-block;
}

.export-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.5rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
    min-width: 180px;
    z-index: 1000;
}

.export-menu.active {
    display: block;
}

.export-menu-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    color: var(--text-primary);
    transition: background-color 0.2s ease;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.export-menu-item:hover {
    background-color: var(--bg-tertiary);
}

.export-menu-item:first-child {
    border-radius: 8px 8px 0 0;
}

.export-menu-item:last-child {
    border-radius: 0 0 8px 8px;
}

/* Filter Chips */
.filter-chips {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.filter-chip-remove {
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1rem;
    line-height: 1;
}

.filter-chip-remove:hover {
    transform: scale(1.2);
}

/* Live Update Indicator - Fixed Position */
.live-indicator {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background-color: var(--success-color);
    color: white;
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3);
    z-index: 999;
    transition: all 0.3s ease;
}

.live-indicator.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}

.live-indicator .pulse-dot {
    width: 10px;
    height: 10px;
    background-color: white;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
    }
    50% {
        opacity: 0.7;
        transform: scale(0.9);
        box-shadow: 0 0 0 8px rgba(255, 255, 255, 0);
    }
}

/* Comparison Modal */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.comparison-card {
    background-color: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 2px solid var(--border-light);
}

.comparison-card h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: 4px;
}

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

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    width: 60%;
    margin-bottom: 1rem;
}

/* Status Badges Enhancement */
.status-badge {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Improvements */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .search-box {
        max-width: 100%;
    }
    
    .time-range-selector {
        justify-content: center;
    }
    
    .header-actions {
        flex-direction: column;
        width: 100%;
        align-items: stretch;
    }
}

/* Modal Enhancements */
.modal-content {
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Utility Classes */
.fade-in {
    animation: fadeIn 0.3s ease;
}

.slide-in-right {
    animation: slideInRight 0.3s ease;
}

.pulse-animation {
    animation: pulse 2s ease-in-out infinite;
}

/* Enhanced Stat Cards */
.stat-card {
    animation: fadeIn 0.5s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.stat-card.success::before {
    background: var(--success-color);
}

.stat-card.danger::before {
    background: var(--danger-color);
}

.stat-card.warning::before {
    background: var(--warning-color);
}

.stat-card:hover::before {
    width: 8px;
}


/* ============================================
   CATEGORY FILTERS
   ============================================ */
.category-filter-card {
    margin-bottom: 1.5rem;
}

.category-filter-header {
    margin-bottom: 1rem;
}

.category-filter-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.category-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.125rem;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-light);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.category-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1));
    transition: width 0.3s ease;
}

.category-btn:hover::before {
    width: 100%;
}

.category-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.category-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.category-btn .category-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 6px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.category-btn.active .category-count {
    background: rgba(255, 255, 255, 0.3);
}

/* Category badges in service cards */
.service-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

.service-category-badge .category-icon {
    font-size: 0.875rem;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .category-filters {
        gap: 0.5rem;
    }
    
    .category-btn {
        padding: 0.5rem 0.875rem;
        font-size: 0.813rem;
    }
    
    .category-filter-card {
        margin-bottom: 1rem;
    }
}

/* ============================================
   SLA COMPLIANCE DASHBOARD
   ============================================ */
.sla-dashboard-card {
    margin-bottom: 1.5rem;
}

.sla-summary {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.sla-summary-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sla-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.sla-value {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

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

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

.sla-gauges-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.sla-gauge-card {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 1.25rem;
    border: 2px solid var(--border-light);
    transition: all 0.3s ease;
}

.sla-gauge-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.sla-gauge-card.met {
    border-color: var(--success-color);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, rgba(46, 204, 113, 0.05) 100%);
}

.sla-gauge-card.violated {
    border-color: var(--danger-color);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, rgba(220, 53, 69, 0.05) 100%);
}

.sla-gauge-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.sla-service-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sla-status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.sla-status-badge.met {
    background: var(--success-color);
    color: white;
}

.sla-status-badge.violated {
    background: var(--danger-color);
    color: white;
}

.sla-gauge-body {
    margin: 1.5rem 0;
}

.sla-gauge {
    position: relative;
    width: 100%;
    height: 160px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.sla-gauge-svg {
    transform: rotate(-90deg);
}

.sla-gauge-bg {
    fill: none;
    stroke: var(--border-light);
    stroke-width: 12;
}

.sla-gauge-fill {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 12;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease, stroke 0.3s ease;
}

.sla-gauge-fill.met {
    stroke: var(--success-color);
}

.sla-gauge-fill.violated {
    stroke: var(--danger-color);
}

.sla-gauge-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.sla-gauge-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.sla-gauge-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.sla-gauge-footer {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.sla-metric {
    text-align: center;
}

.sla-metric-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 0.25rem;
}

.sla-metric-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sla-metric-value.success {
    color: var(--success-color);
}

.sla-metric-value.danger {
    color: var(--danger-color);
}

.sla-target-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding: 0.5rem;
    background: rgba(0, 123, 255, 0.1);
    border-radius: 8px;
    font-size: 0.813rem;
}

.sla-target-indicator.met {
    background: rgba(46, 204, 113, 0.1);
    color: var(--success-color);
}

.sla-target-indicator.violated {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .sla-summary {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .sla-gauges-container {
        grid-template-columns: 1fr;
    }
    
    .sla-gauge {
        height: 140px;
    }
    
    .sla-gauge-value {
        font-size: 1.75rem;
    }
}

/* ============================================
   ALERT ACKNOWLEDGMENT & MUTING
   ============================================ */
.alert-item.acknowledged {
    opacity: 0.7;
    border-left: 4px solid var(--success-color);
}

.alert-ack-info {
    margin-top: 0.75rem;
    padding: 0.5rem;
    background: rgba(46, 204, 113, 0.1);
    border-left: 3px solid var(--success-color);
    border-radius: 4px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.alert-mute-badge {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 165, 0, 0.2);
    border: 1px solid rgba(255, 165, 0, 0.5);
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--warning-color);
}

.alert-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-light);
}

.alert-actions .btn {
    font-size: 0.813rem;
    padding: 0.375rem 0.75rem;
}

/* Mute Duration Buttons */
.mute-duration-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.mute-duration-btn {
    flex: 1 1 auto;
    min-width: 120px;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    border: 2px solid var(--border-light);
    transition: all 0.3s ease;
}

.mute-duration-btn:hover {
    border-color: var(--primary-color);
    background: rgba(0, 123, 255, 0.1);
}

.mute-duration-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Modal Enhancements */
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

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

.modal-footer {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-light);
}

/* Form Controls */
.form-control {
    width: 100%;
    padding: 0.625rem;
    font-size: 0.875rem;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .alert-actions {
        flex-direction: column;
    }
    
    .alert-actions .btn {
        width: 100%;
    }
    
    .mute-duration-buttons {
        flex-direction: column;
    }
    
    .mute-duration-btn {
        min-width: 100%;
    }
}

/* Speed Test Styles */
.speed-test-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.speed-test-result-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.speed-test-result-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
    border-color: var(--primary-color);
}

.speed-test-result-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.speed-test-result-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0.5rem 0;
    line-height: 1.2;
}

.speed-test-result-unit {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.modal-large {
    max-width: 700px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .speed-test-results-grid {
        grid-template-columns: 1fr;
    }
}