:root {
    --bg-primary: #202124;
    --bg-secondary: #292a2d;
    --bg-table-header: #2d2e30;
    --bg-table-row-even: #202124;
    --bg-table-row-odd: #252628;
    --bg-table-row-hover: #2d2e30;
    --bg-sidebar: #2d2e30;
    --bg-card: #292a2d;
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --text-muted: #80868b;
    --border-color: #3c4043;
    --success: #34a853;
    --warning: #f9ab00;
    --error: #ea4335;
    --in-progress: #8ab4f8;
    --router: #a46ede;
    --server: #8ab4f8;
    --database: #0d9d82;
    --shadow: rgba(0, 0, 0, 0.3);
    --sidebar-width: 220px;
    --header-height: 60px;
    --info: #a46ede;
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-table-header: #f1f3f4;
    --bg-table-row-even: #ffffff;
    --bg-table-row-odd: #fafafa;
    --bg-table-row-hover: #e8f0fe;
    --bg-sidebar: #f5f5f5;
    --bg-card: #ffffff;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-muted: #80868b;
    --border-color: #dadce0;
    --success: #0d904f;
    --warning: #e37400;
    --error: #d93025;
    --in-progress: #1a73e8;
    --router: #9334e6;
    --server: #1a73e8;
    --database: #059669;
    --info: #9334e6;
    --shadow: rgba(60, 64, 67, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition:
        background-color 0.2s,
        color 0.2s,
        border-color 0.2s;
}

body {
    font-family:
        "Segoe UI",
        system-ui,
        -apple-system,
        sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.4;
    font-size: 13px;
    min-height: 100vh;
}

/* --- Layout & Navigation --- */
.app-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    font-size: 16px;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-logo i {
    color: var(--server);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 4px;
    transition: all 0.2s;
}

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

.nav-link.active {
    background-color: var(--server);
    color: white;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-main {
    max-width: 1400px;
    margin: var(--header-height) auto 0;
    padding: 20px;
    min-height: calc(100vh - var(--header-height));
}

.page-header {
    margin-bottom: 24px;
}

.page-title {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 8px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* --- Common Components --- */
.btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.btn:hover {
    background-color: var(--bg-table-row-hover);
}

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

.btn-primary:hover {
    opacity: 0.9;
}

.btn-danger {
    background-color: rgba(217, 48, 37, 0.1);
    color: var(--error);
    border: 1px solid rgba(217, 48, 37, 0.2);
}

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

.btn-small {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-acknowledge {
    background-color: rgba(52, 168, 83, 0.1);
    color: var(--success);
    border-color: rgba(52, 168, 83, 0.3);
}

.btn-acknowledge:hover {
    background-color: rgba(52, 168, 83, 0.2);
}

.btn-delete {
    background-color: rgba(234, 67, 53, 0.1);
    color: var(--error);
    border-color: rgba(234, 67, 53, 0.3);
}

.btn-delete:hover {
    background-color: rgba(234, 67, 53, 0.2);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 8px;
    margin-bottom: 20px;
}

.stat-card {
    background-color: var(--bg-card);
    border-radius: 6px;
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border-color);
}

.stat-icon {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.stat-total {
    background-color: rgba(154, 160, 166, 0.1);
    color: var(--text-secondary);
}
.stat-success {
    background-color: rgba(52, 168, 83, 0.1);
    color: var(--success);
}
.stat-warning {
    background-color: rgba(249, 171, 0, 0.1);
    color: var(--warning);
}
.stat-error {
    background-color: rgba(234, 67, 53, 0.1);
    color: var(--error);
}
.stat-in-progress {
    background-color: rgba(138, 180, 248, 0.1);
    color: var(--in-progress);
}

.stat-info h3 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 2px;
}
.stat-info p {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Tables */
.table-container {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    background-color: var(--bg-primary);
    margin-bottom: 16px;
    box-shadow: 0 1px 3px var(--shadow);
}

.backup-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.backup-table th {
    background-color: var(--bg-table-header);
    color: var(--text-secondary);
    font-weight: 500;
    text-align: left;
    padding: 5px;
    border-bottom: 1px solid var(--border-color);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    user-select: none;
}

.backup-table th.sortable {
    cursor: pointer;
}
.backup-table th.sortable:hover {
    background-color: var(--bg-table-row-hover);
}
.backup-table th i {
    margin-left: 4px;
    font-size: 10px;
    opacity: 0.6;
}

.backup-table td {
    padding: 2px 5px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    font-size: 12px;
}

.backup-table tbody tr {
    background-color: var(--bg-table-row-even);
}
.backup-table tbody tr:nth-child(odd) {
    background-color: var(--bg-table-row-odd);
}
.backup-table tbody tr:hover {
    background-color: var(--bg-table-row-hover);
}
.backup-table tbody tr:last-child td {
    border-bottom: none;
}

/* Table Toolbars & Filters */
.table-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.table-filters {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 5px 10px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 3px;
    cursor: pointer;
    font-size: 11px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.filter-btn:hover {
    background-color: var(--bg-table-row-hover);
}
.filter-btn.active {
    background-color: var(--server);
    color: white;
    border-color: var(--server);
}

.search-box {
    position: relative;
    min-width: 200px;
}
.search-box input {
    width: 100%;
    padding: 5px 10px 5px 30px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 12px;
}
.search-box i {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 11px;
}

/* Pagination & Footer */
.table-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    font-size: 11px;
    color: var(--text-secondary);
}

.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
}
.pagination-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 11px;
}
.pagination-btn:hover:not(:disabled) {
    background-color: var(--bg-table-row-hover);
}
.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.pagination-info {
    margin: 0 8px;
}

/* Badges & Text styles */
.type-badge,
.alert-type,
.alert-level {
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 500;
    display: inline-block;
    text-align: center;
}

.type-router {
    background-color: rgba(147, 52, 230, 0.1);
    color: var(--router);
}
.type-server {
    background-color: rgba(26, 115, 232, 0.1);
    color: var(--server);
}
.type-database {
    background-color: rgba(5, 150, 105, 0.1);
    color: var(--database);
}

/* Status & Alert Levels */
.type-info,
.level-info,
.type-missed_check {
    background-color: rgba(138, 180, 248, 0.1);
    color: var(--in-progress);
}
.type-warning,
.level-warning,
.type-warning_status {
    background-color: rgba(249, 171, 0, 0.1);
    color: var(--warning);
}
.type-error,
.level-critical,
.type-error_status {
    background-color: rgba(234, 67, 53, 0.1);
    color: var(--error);
}
.type-success,
.type-recovery {
    background-color: rgba(52, 168, 83, 0.1);
    color: var(--success);
}

.node-name {
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.node-icon {
    color: var(--text-secondary);
    font-size: 12px;
}

.time-cell,
.location-cell,
.stage-cell,
.message-cell,
.ip-cell {
    font-family: "SF Mono", "Roboto Mono", monospace;
    font-weight: 500;
    color: var(--text-primary);
}

.action-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 11px;
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
}

.action-btn:hover {
    background-color: var(--bg-table-row-hover);
}

/* --- Status Indicators --- */
/* Table Column Widths */
.col-name {
    width: 22%;
}
.col-type {
    width: 12%;
}
.col-status {
    width: 14%;
}
.col-last {
    width: 16%;
}
.col-location {
    width: 16%;
}
.col-ip {
    width: 10%;
}
.col-actions {
    width: 10%;
}

/* Backup Logs Table Columns */
.col-created_at {
    width: 16%;
}
.col-stage {
    width: 22%;
}
.col-level {
    width: 14%;
}
.col-message {
    width: 16%;
}
.col-duration {
    width: 16%;
}
.col-log-actions {
    width: 16%;
}

.status-cell {
    display: table-cell;
    align-items: center;
    height: 100%;
}
.status-content {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 24px;
}
.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    display: block;
}

.status-success .status-indicator {
    background-color: var(--success);
    box-shadow: 0 0 0 2px rgba(52, 168, 83, 0.2);
}
.status-warning .status-indicator {
    background-color: var(--warning);
    box-shadow: 0 0 0 2px rgba(249, 171, 0, 0.2);
}
.status-error .status-indicator {
    background-color: var(--error);
    box-shadow: 0 0 0 2px rgba(234, 67, 53, 0.2);
}
.status-in_progress .status-indicator {
    background-color: var(--in-progress);
    box-shadow: 0 0 0 2px rgba(138, 180, 248, 0.2);
    animation: pulse 2s infinite;
}

.status-text {
    font-weight: 500;
    font-size: 12px;
    white-space: nowrap;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.status-success .status-badge {
    background-color: rgba(52, 168, 83, 0.1);
    color: var(--success);
}
.status-warning .status-badge {
    background-color: rgba(249, 171, 0, 0.1);
    color: var(--warning);
}
.status-error .status-badge {
    background-color: rgba(234, 67, 53, 0.1);
    color: var(--error);
}
.status-in_progress .status-badge {
    background-color: rgba(138, 180, 248, 0.1);
    color: var(--in-progress);
}

/* --- Specific Page Overrides/Additions --- */

/* Alerts Management Page */
.alerts-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.stat-card-alert {
    background-color: var(--bg-card);
    border-radius: 8px;
    padding: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px var(--shadow);
}

.stat-value {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-critical .stat-value {
    color: var(--error);
}
.stat-warning .stat-value {
    color: var(--warning);
}
.stat-info .stat-value {
    color: var(--in-progress);
}
.stat-total .stat-value {
    color: var(--text-primary);
}

.alert-node {
    font-weight: 500;
    margin-bottom: 4px;
}

.alert-time {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: "SF Mono", "Roboto Mono", monospace;
}

.alert-message {
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 4px;
}

.alert-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.acknowledged-badge {
    color: var(--success);
    font-size: 11px;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background: var(--bg-primary);
    padding: 24px;
    border-radius: 8px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px var(--shadow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-title {
    font-size: 18px;
    font-weight: 500;
}

.close-modal {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}

.form-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* Alerts Management Page Extras */
.alerts-container {
    background-color: var(--bg-card);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px var(--shadow);
}

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

.alerts-table th {
    background-color: var(--bg-table-header);
    color: var(--text-secondary);
    font-weight: 500;
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    user-select: none;
}

.alerts-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
    font-size: 12px;
}

.alerts-table tbody tr {
    background-color: var(--bg-table-row-even);
}

.alerts-table tbody tr:nth-child(odd) {
    background-color: var(--bg-table-row-odd);
}

.alerts-table tbody tr:hover {
    background-color: var(--bg-table-row-hover);
}

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

.stat-card-alert.stat-critical {
    border-top: 3px solid var(--error);
}
.stat-card-alert.stat-warning {
    border-top: 3px solid var(--warning);
}
.stat-card-alert.stat-info {
    border-top: 3px solid var(--in-progress);
}

.alert-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.pagination-controls {
    display: flex;
    gap: 8px;
}

.actions-panel {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.alerts-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Auth Page */
.auth-body {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 360px;
    margin: 1rem;
    padding: 2rem 1.6rem;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.auth-title {
    font-size: 1.55rem;
    margin: 0 0 1.6rem;
    text-align: center;
}

.auth-error {
    color: var(--error);
    font-size: 0.8rem;
    margin: 0.7rem 0;
}

.theme-toggle-auth {
    position: fixed;
    top: 1rem;
    right: 1rem;
    text-decoration: none;
    font-size: 1.4rem;
    transition: all 0.25s;
}

.theme-toggle-auth:hover {
    transform: scale(1.08);
}

.logout-form {
    margin-top: 2rem;
}

/* Help Page */
.help-container {
    max-width: 800px;
    margin: 0 auto;
}

.help-section {
    margin-bottom: 30px;
}

.help-section:last-child {
    margin-bottom: 0;
}

.section-title {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.help-content {
    line-height: 1.6;
    color: var(--text-primary);
}

.help-content p {
    margin-bottom: 12px;
}

.help-content ul,
.help-content ol {
    margin-bottom: 12px;
    padding-left: 20px;
}

.help-content li {
    margin-bottom: 6px;
}

.help-content code {
    background-color: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: "SF Mono", monospace;
    font-size: 12px;
    color: var(--error);
}

.help-content .note,
.help-content .warning,
.help-content .success {
    padding: 12px 16px;
    margin: 16px 0;
    border-radius: 0 4px 4px 0;
}

.help-content .note {
    background-color: rgba(138, 180, 248, 0.1);
    border-left: 3px solid var(--in-progress);
}

.help-content .warning {
    background-color: rgba(249, 171, 0, 0.1);
    border-left: 3px solid var(--warning);
}

.help-content .success {
    background-color: rgba(52, 168, 83, 0.1);
    border-left: 3px solid var(--success);
}

.help-content .info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
    margin: 20px 0;
}

.help-content .info-item {
    background-color: var(--bg-secondary);
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.help-content .info-item h4 {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.help-content .info-item p {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Node Stats Page */
.stats-layout {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.nodes-sidebar {
    width: 280px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 120px);
    position: sticky;
    top: 80px;
    flex-shrink: 0;
    box-shadow: 0 1px 3px var(--shadow);
    overflow: hidden;
}

.sidebar-header {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.nodes-list {
    overflow-y: auto;
    flex: 1;
}

.node-item {
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

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

.node-item:hover {
    background-color: var(--bg-table-row-hover);
}

.node-item.active {
    background-color: rgba(26, 115, 232, 0.1);
    border-left: 4px solid var(--server);
}

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

.node-item-name {
    font-weight: 500;
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-item-meta {
    font-size: 11px;
    color: var(--text-secondary);
}

.stats-main {
    flex: 1;
    min-width: 0;
}

.stat-card-large {
    background-color: var(--bg-card);
    border-radius: 8px;
    padding: 16px;
    border: 1px solid var(--border-color);
}

.node-stats-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 16px;
    flex-wrap: wrap;
}

.stat-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.stat-icon-large {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

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

.stat-value {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 4px;
}

.stat-change {
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 4px;
}

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

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

.chart-container {
    margin-bottom: 24px;
}

.chart-placeholder {
    height: 200px;
    background-color: var(--bg-secondary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.node-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.info-item {
    background-color: var(--bg-secondary);
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.info-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.info-value {
    font-size: 14px;
    font-weight: 500;
}

.status-display {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 6px;
    background-color: var(--bg-secondary);
}

.status-large {
    width: 14px;
    height: 14px;
    border-radius: 50%;
}

.status-success .status-large {
    background-color: var(--success);
    box-shadow: 0 0 0 3px rgba(52, 168, 83, 0.2);
}

.status-warning .status-large {
    background-color: var(--warning);
    box-shadow: 0 0 0 3px rgba(249, 171, 0, 0.2);
}

.status-error .status-large {
    background-color: var(--error);
    box-shadow: 0 0 0 3px rgba(234, 67, 53, 0.2);
}

.status-in_progress .status-large {
    background-color: var(--in-progress);
    box-shadow: 0 0 0 3px rgba(138, 180, 248, 0.2);
    animation: pulse 2s infinite;
}

.progress-bar {
    height: 6px;
    background-color: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 8px;
}

.progress-fill {
    height: 100%;
    background-color: var(--success);
    border-radius: 3px;
    transition: width 0.3s;
}

.log-level {
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 500;
    display: inline-block;
}

.log-info {
    background-color: rgba(138, 180, 248, 0.1);
    color: var(--in-progress);
}

.log-success {
    background-color: rgba(52, 168, 83, 0.1);
    color: var(--success);
}

.log-warning {
    background-color: rgba(249, 171, 0, 0.1);
    color: var(--warning);
}

.log-error {
    background-color: rgba(234, 67, 53, 0.1);
    color: var(--error);
}

.log-time {
    font-family: "SF Mono", "Roboto Mono", monospace;
    font-size: 11px;
    color: var(--text-secondary);
}

.backup-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.backup-pagination-info {
    font-size: 13px;
    color: var(--text-secondary);
}

.backup-pagination-btns {
    display: flex;
    gap: 8px;
}

.backup-pagination-btns button {
    padding: 6px 14px;
    font-size: 13px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
}

.backup-pagination-btns button:hover:not(:disabled) {
    background: var(--bg-secondary);
}

.backup-pagination-btns button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--server);
    text-decoration: none;
    margin-bottom: 16px;
    font-size: 13px;
}

.back-link:hover {
    text-decoration: underline;
}

.backup_link {
    color: var(--text-primary);
    text-decoration: none;
}

.card-body {
    padding-top: 15px;
}

/* --- Animations --- */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
    100% {
        opacity: 1;
    }
}

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

/* --- Forms --- */
.form-group {
    margin-bottom: 16px;
}
.form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-primary);
}
.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 13px;
    transition: border-color 0.2s;
}
.form-control:focus {
    outline: none;
    border-color: var(--server);
}
textarea.form-control {
    min-height: 120px;
    resize: vertical;
    font-family: inherit;
}

/* --- Utilities --- */
.loading {
    text-align: center;
    padding: 40px;
    font-size: 13px;
    color: var(--text-secondary);
}
.loading i {
    animation: spin 1s linear infinite;
}
.error,
.error-message,
.error-msg {
    text-align: center;
    padding: 40px;
    color: var(--error);
    font-size: 13px;
}
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 13px;
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* --- Responsiveness --- */
@media (max-width: 1200px) {
    .table-container {
        overflow-x: auto;
    }
    .backup-table {
        min-width: 1000px;
    }
}

@media (max-width: 768px) {
    .stats-layout {
        flex-direction: column;
    }
    .nodes-sidebar {
        width: 100%;
        max-height: 400px;
        position: static;
        margin-bottom: 20px;
    }
    .nav-container {
        padding: 0 12px;
    }
    .nav-links {
        gap: 8px;
    }
    .nav-link span {
        display: none;
    }
    .app-main {
        padding: 12px;
    }
    .page-title {
        font-size: 20px;
    }
    .alerts-header,
    .alerts-toolbar,
    .table-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    .search-box {
        min-width: 100%;
    }
    .stats-grid,
    .stats-cards {
        grid-template-columns: repeat(3, 1fr);
    }

    .filters {
        justify-content: center;
    }
    .table-footer {
        flex-direction: column;
        gap: 8px;
        align-items: stretch;
    }

    .alerts-table {
        display: block;
        overflow-x: auto;
    }
    .alert-actions {
        flex-direction: column;
    }
    .btn-small {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .stats-grid,
    .stats-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    .modal-content {
        padding: 16px;
    }
}