/* ══════════════════════════════════════════════════════════
   admin-settings.css — Workspace-style Admin Tabs
   Maintenance, Branding, Export/Import, Node Dashboard
   Follows the server-workspace panel pattern
   ══════════════════════════════════════════════════════════ */

/* ── Panel Layout (from workspace) ────────────────────── */

.panel-tab-layout {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 24px;
}

.panel-card-overview {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
}

.panel-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, .1);
}

.panel-card-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.panel-card-header h3 .material-icons {
    font-size: 20px;
    color: var(--accent-primary);
}

.panel-card-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-usage-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.panel-usage-badge .material-icons {
    font-size: 14px;
    color: var(--accent-primary);
}

.panel-card-info-section {
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.panel-info-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.panel-info-row .material-icons {
    font-size: 16px;
    color: var(--accent-primary);
    flex-shrink: 0;
    margin-top: 1px;
}

.panel-card-list {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: border-color var(--transition, .2s);
}

.panel-card-list:hover {
    border-color: var(--border-hover);
}

.panel-card-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0, 0, 0, .1);
}

.panel-card-list-header h3 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-card-list-header h3 .material-icons {
    font-size: 18px;
    color: var(--accent-primary);
}

.panel-card-body {
    padding: 20px 24px;
}

.panel-card-hint {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 1rem;
}

/* ── Form Input (dark themed, mirrors workspace) ─────── */

.panel-tab-layout .form-input,
.panel-tab-layout .form-group input,
.panel-tab-layout .form-group select,
.panel-tab-layout .form-group textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color .2s, box-shadow .2s, background .2s;
    box-sizing: border-box;
}

.panel-tab-layout .form-input:focus,
.panel-tab-layout .form-group input:focus,
.panel-tab-layout .form-group select:focus,
.panel-tab-layout .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, .1);
    background: var(--bg-primary);
}

.panel-tab-layout .form-input::placeholder,
.panel-tab-layout .form-group input::placeholder {
    color: var(--text-muted);
    opacity: .6;
}

.panel-tab-layout textarea.form-input {
    font-family: 'JetBrains Mono', 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    line-height: 1.6;
    min-height: 80px;
    resize: vertical;
}

.panel-tab-layout .form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.panel-tab-layout .form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ── Resource Graph Stats (from workspace) ──────────── */

.resource-graphs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.resource-graph-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 16px;
    transition: all .2s ease;
}

.resource-graph-card:hover {
    border-color: var(--border-hover);
}

.resource-graph-card .graph-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.resource-graph-card .graph-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: .5px;
}

.resource-graph-card .graph-title .material-icons {
    font-size: 18px;
}

.resource-graph-card:nth-child(1) .graph-title .material-icons { color: #10b981; }
.resource-graph-card:nth-child(2) .graph-title .material-icons { color: #8b5cf6; }
.resource-graph-card:nth-child(3) .graph-title .material-icons { color: #f59e0b; }
.resource-graph-card:nth-child(4) .graph-title .material-icons { color: #3b82f6; }

.resource-graph-card .graph-value {
    display: flex;
    align-items: baseline;
    gap: 2px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.resource-graph-card .graph-value .unit {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
}

.resource-graph-card .graph-detail {
    font-size: 11px;
    color: var(--text-muted);
    text-align: right;
}

/* ── Toggle Switch ────────────────────────────────────── */

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
    flex-shrink: 0;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: rgba(255, 255, 255, .1);
    border-radius: 28px;
    transition: .3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: .3s;
}

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

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(24px);
}

/* ── Admin Workspace Utilities (adm-ws-*) ─────────── */

.adm-ws-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.adm-ws-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.adm-ws-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ── Chips (Export/Import checkboxes) ─────────────── */

.adm-ws-chip-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 1rem;
}

.adm-ws-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all .2s;
}

.adm-ws-chip .material-icons {
    font-size: 16px;
    color: var(--text-muted);
}

.adm-ws-chip:hover {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, .05);
}

.adm-ws-chip:has(input:checked) {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, .08);
}

.adm-ws-chip:has(input:checked) .material-icons {
    color: var(--accent-primary);
}

.adm-ws-chip input {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color, #333);
    border-radius: 3px;
    background: var(--bg-secondary, #0a0a0a);
    cursor: pointer;
    position: relative;
    transition: all .2s ease;
    margin: 0;
    flex-shrink: 0;
}

.adm-ws-chip input:checked {
    background: var(--accent-primary, #8b5cf6);
    border-color: var(--accent-primary, #8b5cf6);
}

.adm-ws-chip input:checked::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 4px;
    width: 4px;
    height: 8px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* ── Drop Zone (Import) ──────────────────────────── */

.adm-ws-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    color: var(--text-secondary);
    transition: all .2s;
    cursor: pointer;
    margin-bottom: 1rem;
}

.adm-ws-drop-zone:hover,
.adm-ws-drop-zone.drag-over {
    border-color: var(--accent-primary);
    background: rgba(139, 92, 246, .04);
}

.adm-ws-drop-zone .material-icons {
    font-size: 40px;
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.adm-ws-drop-zone p {
    margin: 0;
    font-size: 13px;
}

.adm-ws-browse {
    color: var(--accent-primary);
    cursor: pointer;
    text-decoration: underline;
}

.adm-ws-file-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-primary);
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    margin-bottom: 12px;
}

.adm-ws-file-info .material-icons {
    font-size: 18px;
    color: var(--accent-primary);
}

/* ── IP Tag List ─────────────────────────────────── */

.adm-ws-ip-list {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: .75rem;
}

.ip-tag {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: .35rem .65rem;
    font-size: .82rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    color: var(--text-secondary);
}

.ip-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
}

.ip-remove:hover {
    color: var(--danger);
}

.adm-ws-ip-add {
    display: flex;
    gap: .5rem;
}

.adm-ws-ip-add .form-input {
    flex: 1;
}

/* ── Preview Row (Branding logo/favicon) ─────────── */

.adm-ws-preview-row {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.adm-ws-preview-img {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    object-fit: cover;
    border: 1px solid var(--border-color);
    background: rgba(0, 0, 0, .3);
    flex-shrink: 0;
}

/* ── Color Picker (Branding) ─────────────────────── */

.adm-ws-color-row {
    display: flex;
    align-items: center;
    gap: .75rem;
}

.adm-ws-color-input {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    background: none;
    padding: 0;
    flex-shrink: 0;
}

.adm-ws-color-input::-webkit-color-swatch-wrapper { padding: 0; }
.adm-ws-color-input::-webkit-color-swatch {
    border: 2px solid rgba(255, 255, 255, .1);
    border-radius: 8px;
}

.adm-ws-color-preview {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin-top: 1rem;
    padding: .75rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.adm-ws-swatch {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, .1);
}

/* ══════════════════════════════════════════════════════════
   NODE DASHBOARD — Detail Cards
   ══════════════════════════════════════════════════════════ */

.nd-chart-container {
    height: 220px;
    position: relative;
}

.nd-chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

.nd-nodes-detail-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.nd-node-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    transition: border-color .3s;
}

.nd-node-card.online {
    border-left: 3px solid #10b981;
}

.nd-node-card.offline {
    border-left: 3px solid #ef4444;
    opacity: .7;
}

.nd-node-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: .5rem;
}

.nd-node-title {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.nd-node-title h4 {
    font-size: .95rem;
    font-weight: 600;
    margin: 0;
}

.nd-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.nd-status-dot.online {
    background: #10b981;
    box-shadow: 0 0 6px #10b981;
}

.nd-status-dot.offline {
    background: #ef4444;
}

.nd-badge {
    font-size: .7rem;
    padding: .15rem .5rem;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
}

.nd-badge.online {
    background: rgba(16, 185, 129, .15);
    color: #10b981;
}

.nd-badge.offline {
    background: rgba(239, 68, 68, .15);
    color: #ef4444;
}

.nd-node-meta {
    display: flex;
    align-items: center;
    font-size: .78rem;
    color: var(--text-muted);
    gap: .25rem;
}

.nd-node-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.nd-metric-header {
    display: flex;
    justify-content: space-between;
    font-size: .78rem;
    color: var(--text-muted);
    margin-bottom: .35rem;
}

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

.nd-bar-track {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, .06);
    overflow: hidden;
}

.nd-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width .5s ease;
}

.nd-bar-fill.cpu { background: #10b981; }
.nd-bar-fill.ram { background: #8b5cf6; }
.nd-bar-fill.disk { background: #f59e0b; }

.nd-node-offline-msg {
    display: flex;
    align-items: center;
    gap: .5rem;
    color: var(--text-muted);
    font-size: .85rem;
    padding: .75rem;
    background: rgba(239, 68, 68, .05);
    border-radius: 8px;
}

/* Loading placeholder */
.loading-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .75rem;
    padding: 2rem;
    color: var(--text-muted);
    font-size: .85rem;
}

.loading-spinner-small {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, .1);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.btn-sm {
    padding: .4rem .75rem;
    font-size: .8rem;
}

.page-head-actions {
    display: flex;
    gap: .5rem;
}

/* Save button at bottom of panel-tab-layout */
.panel-tab-layout > .btn-primary,
.panel-tab-layout > .adm-ws-actions > .btn-primary {
    align-self: flex-start;
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════ */

@media (max-width: 1400px) {
    .resource-graphs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1200px) {
    .nd-node-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

@media (max-width: 768px) {
    .panel-tab-layout {
        padding: 12px;
    }

    .panel-card-header,
    .panel-card-list-header {
        padding: 14px 16px;
    }

    .panel-card-info-section {
        padding: 12px 16px;
    }

    .panel-card-body {
        padding: 16px;
    }

    .resource-graphs-grid {
        grid-template-columns: 1fr;
    }

    .adm-ws-grid-2 {
        grid-template-columns: 1fr;
    }

    .adm-ws-form-row {
        grid-template-columns: 1fr;
    }

    .nd-node-metrics {
        grid-template-columns: 1fr;
    }

    .adm-ws-preview-row {
        flex-direction: column;
    }
}