/**
 * mobile.css — Native Mobile Design System for PGC Monitoring
 * 
 * Features:
 *  - Full Safe Area Insets (iOS notch, Dynamic Island, Home indicator)
 *  - Emil Kowalski's Design Engineering easing curves (--ease-drawer, --ease-out)
 *  - Native Bottom Navigation Dock (.mobile-bottom-nav)
 *  - Native Sticky Mobile Top Bar (.mobile-top-bar)
 *  - Switch Port Cards (.mobile-port-card)
 *  - Interactive Switch Faceplate Panel (.switch-faceplate)
 *  - Smooth Bottom Sheet Drawer (.bottom-sheet)
 *  - Client / Subscriber Hero & Gauges (.client-hero-mobile, .optical-gauge)
 *  - Device Cards & KPI Grid (.mobile-device-card, .mobile-kpi-grid)
 *  - Touch target compliance (>= 44x44px) & iOS zoom prevention (font-size >= 16px)
 *  - Full Dark / Light theme support
 */

/* ==========================================================================
   1. Root Variables & Safe Area Tokens
   ========================================================================== */
:root {
    /* iOS Safe Area Insets */
    --sat: env(safe-area-inset-top, 0px);
    --sab: env(safe-area-inset-bottom, 0px);
    --sal: env(safe-area-inset-left, 0px);
    --sar: env(safe-area-inset-right, 0px);

    /* Mobile Shell Dimensions */
    --mobile-nav-height: 60px;
    --mobile-top-bar-height: 54px;
    --touch-target-min: 44px;

    /* Emil Kowalski's Physics & Easing Curves */
    --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
    --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
    --ease-drawer: cubic-bezier(0.32, 0.72, 0, 1);
    --ease-spring: cubic-bezier(0.32, 0.72, 0, 1);
    --dur-fast: 140ms;
    --dur-normal: 200ms;
    --dur-sheet: 280ms;

    /* Theme Tokens (Dark Mode Default - NOC Deep Carbon) */
    --mobile-nav-bg: #080c14;
    --mobile-top-bg: #080c14;
    --mobile-sheet-bg: #0e1626;
    --mobile-sheet-border: rgba(148, 163, 184, 0.15);
    --mobile-card-bg: #0e1626;
    --mobile-card-border: rgba(148, 163, 184, 0.12);
    --mobile-card-hover: rgba(148, 163, 184, 0.25);
    --mobile-chip-bg: rgba(148, 163, 184, 0.08);
    --mobile-chip-border: rgba(148, 163, 184, 0.18);
    --mobile-handle-bg: rgba(148, 163, 184, 0.35);
    --mobile-faceplate-bg: linear-gradient(180deg, #0e1626 0%, #080c14 100%);
    --mobile-faceplate-port-bg: #141f36;
    --mobile-faceplate-port-border: rgba(148, 163, 184, 0.2);
}

/* Light Theme Overrides */
[data-theme="light"],
body.light-theme {
    --mobile-nav-bg: #f8fafc;
    --mobile-top-bg: #f8fafc;
    --mobile-sheet-bg: #ffffff;
    --mobile-sheet-border: rgba(148, 163, 184, 0.25);
    --mobile-card-bg: #ffffff;
    --mobile-card-border: rgba(148, 163, 184, 0.2);
    --mobile-card-hover: rgba(148, 163, 184, 0.35);
    --mobile-chip-bg: rgba(148, 163, 184, 0.1);
    --mobile-chip-border: rgba(148, 163, 184, 0.25);
    --mobile-handle-bg: rgba(100, 116, 139, 0.4);
    --mobile-faceplate-bg: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
    --mobile-faceplate-port-bg: #ffffff;
    --mobile-faceplate-port-border: #cbd5e1;
}

/* ==========================================================================
   2. Media Query Breakpoint: <= 768px (Tablets & Mobile)
   ========================================================================== */
@media (max-width: 768px) {
    /* Hide Desktop Sidebar Completely */
    .sidebar,
    #sidebar {
        display: none !important;
        visibility: hidden !important;
        width: 0 !important;
        pointer-events: none !important;
    }

    /* Adapt Main Layout Shell to Single Column */
    html, body {
        width: 100%;
        min-height: 100vh;
        min-height: 100dvh;
        overflow-x: hidden;
        -webkit-text-size-adjust: 100%;
    }

    body {
        height: auto !important;
        overflow-y: auto !important;
        -webkit-tap-highlight-color: transparent;
    }

    .layout {
        display: flex !important;
        flex-direction: column !important;
        width: 100% !important;
        height: auto !important;
        min-height: 100vh !important;
        min-height: 100dvh !important;
        overflow-x: hidden !important;
        position: relative !important;
    }

    .main {
        width: 100% !important;
        flex: 1 1 auto !important;
        height: auto !important;
        min-height: 100vh !important;
        min-height: 100dvh !important;
        overflow-x: hidden !important;
        overflow-y: visible !important;
        display: flex !important;
        flex-direction: column !important;
        padding-bottom: calc(var(--mobile-nav-height) + var(--sab) + 16px) !important;
    }

    .page-content-scroll {
        flex: 1 !important;
        overflow-y: visible !important;
        height: auto !important;
        width: 100% !important;
    }

    .content {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 14px 14px calc(var(--mobile-nav-height) + var(--sab) + 20px) 14px !important;
        overflow-x: hidden !important;
        overflow-y: visible !important;
    }

    /* Prevent iOS Auto-Zoom on form focus */
    input[type="text"],
    input[type="search"],
    input[type="password"],
    input[type="number"],
    input[type="email"],
    input[type="tel"],
    input[type="url"],
    select,
    textarea {
        font-size: 16px !important;
    }

    /* Interactive Elements Touch Target Compliance (>= 44x44px) */
    .btn,
    .tab-btn,
    .filter-btn,
    .icon-btn,
    .segment-toggle,
    .mobile-back-btn,
    .diag-action-btn,
    .mobile-nav-item,
    button:not(:disabled) {
        min-height: var(--touch-target-min);
        box-sizing: border-box;
    }

    /* Expand clickable target area for compact buttons */
    .btn-sm,
    .icon-btn,
    .filter-pill,
    .tag-pill {
        position: relative;
    }

    .btn-sm::before,
    .icon-btn::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        min-width: var(--touch-target-min);
        min-height: var(--touch-target-min);
        width: 100%;
        height: 100%;
        z-index: 1;
    }

    /* Tactile Press State Feedback */
    .btn:active,
    .tab-btn:active,
    .filter-btn:active,
    .mobile-nav-item:active,
    .mobile-port-card:active,
    .mobile-device-card:active,
    .diag-action-btn:active,
    button:active:not(:disabled) {
        transform: scale(0.96) !important;
        transition: transform var(--dur-fast) var(--ease-out);
    }

    /* Responsive Header Adjustments: на мобильных устройствах десктопный .header
       полностью скрывается, уступая место нативному .mobile-top-bar */
    .header {
        display: none !important;
    }

    .header-search input {
        min-width: 0 !important;
        width: 100% !important;
        font-size: 13.5px !important;
    }

    .header-user,
    .header-right {
        flex-shrink: 0 !important;
        margin-left: auto !important;
        display: flex !important;
        align-items: center !important;
        gap: 6px !important;
    }

    .user-menu-wrapper {
        position: relative !important;
        display: inline-flex !important;
        align-items: center !important;
    }

    .user-badge-btn {
        padding: 5px 8px !important;
        font-size: 12px !important;
        gap: 5px !important;
        max-width: 150px !important;
        background: var(--mobile-card-bg) !important;
        border-color: var(--border) !important;
    }

    .user-badge-btn .user-badge-icon {
        width: 13px !important;
        height: 13px !important;
    }

    .user-badge-text {
        max-width: 95px !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        white-space: nowrap !important;
        font-size: 12px !important;
    }

    .user-dropdown-menu {
        right: 0 !important;
        left: auto !important;
        min-width: 185px !important;
        max-width: calc(100vw - 20px) !important;
        z-index: 1200 !important;
    }

    /* Page Navigation & Breadcrumbs */
    .page-nav-bar {
        margin-bottom: 14px !important;
        gap: 8px !important;
    }

    .breadcrumbs {
        font-size: 12px !important;
        max-width: 240px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    /* Responsive Tables */
    .table-responsive,
    .table-container,
    .ports-table-wrap {
        width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        margin-bottom: 16px !important;
        border-radius: var(--radius-md, 8px) !important;
        border: 1px solid var(--border) !important;
    }

    /* Stats Grid Adaptation */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
        margin-bottom: 16px !important;
    }

    /* Dashboard 3 Fields Grid Adaptation */
    .dashboard-fields-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
        margin-bottom: 18px !important;
    }

    .dashboard-field-card {
        padding: 14px 12px !important;
        gap: 10px !important;
    }

    .field-card-buttons {
        gap: 6px !important;
    }

    .field-btn {
        min-width: 48px !important;
        padding: 6px 4px !important;
    }

    .field-btn-val {
        font-size: 16px !important;
    }

    .field-btn-label {
        font-size: 11px !important;
    }

    .stat-card {
        padding: 14px 12px !important;
        border-radius: var(--radius-md, 8px) !important;
    }

    .stat-value {
        font-size: 22px !important;
    }
}

/* ==========================================================================
   3. Native Bottom Navigation Dock (.mobile-bottom-nav)
   ========================================================================== */
.mobile-bottom-nav {
    display: none; /* Desktop default */
}

@media (max-width: 768px) {
    .mobile-bottom-nav {
        display: flex !important;
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 1000 !important;
        height: calc(var(--mobile-nav-height) + var(--sab)) !important;
        padding-bottom: var(--sab) !important;
        padding-left: var(--sal) !important;
        padding-right: var(--sar) !important;
        background: var(--mobile-nav-bg) !important;
        border-top: 1px solid var(--border) !important;
        justify-content: space-around !important;
        align-items: stretch !important;
        box-shadow: 0 -2px 16px rgba(0, 0, 0, 0.4) !important;
        user-select: none !important;
        -webkit-user-select: none !important;
    }

    .mobile-nav-item {
        flex: 1 1 0 !important;
        min-width: 0 !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        text-decoration: none !important;
        color: var(--text-muted) !important;
        position: relative !important;
        min-height: var(--mobile-nav-height) !important;
        cursor: pointer !important;
        transition: color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out) !important;
    }

    .mobile-nav-item:active {
        transform: scale(0.92) !important;
    }

    .mobile-nav-icon {
        font-size: 20px !important;
        line-height: 1 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        margin-bottom: 2px !important;
        position: relative !important;
        transition: transform var(--dur-fast) var(--ease-out) !important;
    }

    .mobile-nav-icon svg {
        display: block !important;
        width: 18px !important;
        height: 18px !important;
        stroke-width: 1.75px !important;
        stroke-linecap: round !important;
        stroke-linejoin: round !important;
    }

    .mobile-nav-label {
        font-size: 10.5px !important;
        font-weight: 500 !important;
        letter-spacing: -0.01em !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        max-width: 90% !important;
        line-height: 1.2 !important;
    }

    .mobile-nav-badge {
        position: absolute !important;
        top: -4px !important;
        right: -8px !important;
        min-width: 16px !important;
        height: 16px !important;
        padding: 0 4px !important;
        border-radius: var(--radius-xs, 4px) !important;
        background: var(--danger) !important;
        color: #ffffff !important;
        font-family: var(--font-mono) !important;
        font-size: 9.5px !important;
        font-weight: 700 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        box-shadow: 0 1px 4px var(--danger-glow) !important;
        border: 1px solid var(--bg-base) !important;
    }

    /* Active Nav Item with Calm Indicator */
    .mobile-nav-item.active {
        color: var(--accent) !important;
        font-weight: 600 !important;
    }

    .mobile-nav-item.active .mobile-nav-icon {
        color: var(--accent) !important;
    }

    .mobile-nav-item.active::after {
        content: '' !important;
        position: absolute !important;
        top: 0 !important;
        left: 50% !important;
        transform: translateX(-50%) !important;
        width: 24px !important;
        height: 2px !important;
        border-radius: 0 0 2px 2px !important;
        background: var(--accent) !important;
    }
}

/* ==========================================================================
   4. Native Mobile Top Bar (.mobile-top-bar)
   ========================================================================== */
.mobile-top-bar {
    display: none; /* Desktop default */
}

@media (max-width: 768px) {
    .mobile-top-bar {
        display: flex !important;
        position: sticky !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 800 !important;
        height: calc(var(--mobile-top-bar-height) + var(--sat)) !important;
        padding-top: var(--sat) !important;
        padding-left: calc(14px + var(--sal)) !important;
        padding-right: calc(14px + var(--sar)) !important;
        background: var(--mobile-top-bg) !important;
        border-bottom: 1px solid var(--border) !important;
        align-items: center !important;
        justify-content: space-between !important;
        gap: 8px !important;
        box-sizing: border-box !important;
    }

    .mobile-back-btn {
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        gap: 4px !important;
        min-width: var(--touch-target-min) !important;
        min-height: var(--touch-target-min) !important;
        padding: 0 8px !important;
        border: none !important;
        background: transparent !important;
        color: var(--text-primary) !important;
        font-size: 14px !important;
        font-weight: 500 !important;
        border-radius: var(--radius-sm, 5px) !important;
        cursor: pointer !important;
        transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out) !important;
    }

    .mobile-back-btn:active {
        transform: scale(0.92) !important;
        background: rgba(255, 255, 255, 0.08) !important;
    }

    .mobile-top-title {
        flex: 1 1 auto !important;
        min-width: 0 !important;
        text-align: center !important;
        font-family: var(--font-display) !important;
        font-size: 15px !important;
        font-weight: 600 !important;
        letter-spacing: -0.01em !important;
        color: var(--text-primary) !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        padding: 0 6px !important;
        line-height: 1.2 !important;
    }

    .mobile-top-subtitle {
        display: block !important;
        font-size: 11px !important;
        font-weight: 400 !important;
        color: var(--text-muted) !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        margin-top: 1px !important;
    }

    .mobile-top-actions {
        display: flex !important;
        align-items: center !important;
        justify-content: flex-end !important;
        gap: 4px !important;
        min-width: var(--touch-target-min) !important;
    }

    .mobile-top-actions .btn-icon,
    .mobile-top-actions button {
        min-width: var(--touch-target-min) !important;
        min-height: var(--touch-target-min) !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        background: transparent !important;
        border: none !important;
        color: var(--text-primary) !important;
        font-size: 18px !important;
        cursor: pointer !important;
        border-radius: var(--radius-sm, 5px) !important;
    }
}

/* ==========================================================================
   5. Switch Port Cards (.mobile-port-card)
   ========================================================================== */
.mobile-port-card {
    background: var(--mobile-card-bg);
    border: 1px solid var(--mobile-card-border);
    border-radius: var(--radius-md, 8px);
    padding: 14px;
    margin-bottom: 10px;
    position: relative;
    overflow: hidden;
    transition: transform var(--dur-fast) var(--ease-out),
                border-color var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) var(--ease-out);
    box-sizing: border-box;
}

.mobile-port-card:hover {
    border-color: var(--mobile-card-hover);
}

/* Port Status Border Strips */
.mobile-port-card.port-status-up,
.mobile-port-card.port-up {
    border-left: 3px solid var(--success);
}

.mobile-port-card.port-status-down,
.mobile-port-card.port-down {
    border-left: 3px solid var(--text-muted);
    opacity: 0.88;
}

.mobile-port-card.port-status-error,
.mobile-port-card.port-error {
    border-left: 3px solid var(--danger);
}

.mobile-port-card.port-status-warning,
.mobile-port-card.port-warning {
    border-left: 3px solid var(--warning);
}

.mobile-port-card.port-status-client,
.mobile-port-card.port-client {
    border-left: 3px solid var(--accent);
}

.mobile-port-card.port-status-uplink,
.mobile-port-card.port-uplink {
    border-left: 3px solid var(--purple);
}

.port-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
}

.port-card-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

.port-card-badges {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.port-card-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.port-card-desc {
    color: var(--text-secondary);
    line-height: 1.4;
    word-break: break-word;
    font-weight: 500;
}

.port-card-vlan {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.port-card-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin: 10px 0;
    background: rgba(0, 0, 0, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-xs, 4px);
    padding: 10px 12px;
}

[data-theme="light"] .port-card-metrics,
body.light-theme .port-card-metrics {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.port-metric-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.port-metric-label {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
}

.port-metric-value {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

.port-card-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.port-card-actions .btn {
    flex: 1 1 calc(50% - 4px);
    justify-content: center;
    min-height: var(--touch-target-min);
    font-size: 13px;
    border-radius: var(--radius-sm, 5px);
}

/* ==========================================================================
   6. Visual Switch Port Matrix Panel (.switch-faceplate) — Physical Layout
   ========================================================================== */
.switch-faceplate {
    background: var(--bg-surface, #111827);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.1));
    border-radius: 12px;
    padding: 14px 18px;
    margin-bottom: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
    user-select: none;
    -webkit-user-select: none;
    font-family: var(--font-sans, system-ui);
}

[data-theme="light"] .switch-faceplate,
body.light-theme .switch-faceplate {
    background: #ffffff;
    border-color: #e2e8f0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* Header bar */
.matrix-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 10px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    flex-wrap: wrap;
    gap: 10px;
}

[data-theme="light"] .matrix-header-bar,
body.light-theme .matrix-header-bar {
    border-bottom-color: #e2e8f0;
}

.matrix-title-area {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.matrix-vendor-pill {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

.matrix-vendor-pill.v-dlink { background: rgba(2, 132, 199, 0.18); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }
.matrix-vendor-pill.v-snr { background: rgba(234, 88, 12, 0.18); color: #fb923c; border: 1px solid rgba(251, 146, 60, 0.3); }
.matrix-vendor-pill.v-bdcom { background: rgba(37, 99, 235, 0.18); color: #60a5fa; border: 1px solid rgba(96, 165, 250, 0.3); }
.matrix-vendor-pill.v-mikrotik { background: rgba(220, 38, 38, 0.18); color: #f87171; border: 1px solid rgba(248, 113, 113, 0.3); }
.matrix-vendor-pill.v-cisco { background: rgba(8, 145, 178, 0.18); color: #22d3ee; border: 1px solid rgba(34, 211, 238, 0.3); }
.matrix-vendor-pill.v-eltex { background: rgba(79, 70, 229, 0.18); color: #818cf8; border: 1px solid rgba(129, 140, 248, 0.3); }
.matrix-vendor-pill.v-generic { background: rgba(100, 116, 139, 0.18); color: #94a3b8; border: 1px solid rgba(148, 163, 184, 0.3); }

.matrix-model-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono, monospace);
}

.matrix-stats-badges {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 11.5px;
    color: var(--text-muted);
    font-family: var(--font-mono, monospace);
}

/* Scroll wrapper for matrix */
.matrix-scroll-wrap {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 4px 2px 8px 2px;
    scrollbar-width: thin;
}

.matrix-scroll-wrap::-webkit-scrollbar {
    height: 6px;
}

.matrix-scroll-wrap::-webkit-scrollbar-thumb {
    background: var(--border, rgba(255, 255, 255, 0.2));
    border-radius: 3px;
}

/* Physical Grid of Port Clusters */
.matrix-clusters-row {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    width: max-content;
    padding: 2px;
}

/* Port cluster / block (e.g. 1-12, 13-24, Uplinks) */
.matrix-cluster {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
    border-radius: 8px;
    padding: 6px 8px 8px 8px;
}

[data-theme="light"] .matrix-cluster,
body.light-theme .matrix-cluster {
    background: #f8fafc;
    border-color: #e2e8f0;
}

.matrix-cluster-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 9.5px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0 2px 3px 2px;
    border-bottom: 1px solid var(--border, rgba(255, 255, 255, 0.06));
    margin-bottom: 2px;
}

[data-theme="light"] .matrix-cluster-header,
body.light-theme .matrix-cluster-header {
    border-bottom-color: #e2e8f0;
}

/* Grid of columns: each column has 2 ports (top odd, bottom even) */
.matrix-columns-grid {
    display: flex;
    gap: 6px;
}

.matrix-col {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

/* Individual Port Jack Cell */
.matrix-port-cell {
    width: 38px;
    height: 40px;
    min-width: 38px;
    min-height: 40px;
    background: var(--bg-surface-alt, #1e293b);
    border: 1px solid var(--border, rgba(255, 255, 255, 0.12));
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 3px 2px;
    box-sizing: border-box;
    cursor: pointer;
    position: relative;
    transition: transform 0.12s ease, border-color 0.12s ease, box-shadow 0.12s ease;
}

[data-theme="light"] .matrix-port-cell,
body.light-theme .matrix-port-cell {
    background: #ffffff;
    border-color: #cbd5e1;
}

.matrix-port-cell:hover {
    transform: translateY(-2px);
    border-color: var(--accent, #38bdf8) !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
    z-index: 3;
}

.matrix-port-cell:active {
    transform: scale(0.92);
}

.matrix-port-cell.is-up {
    border-color: rgba(34, 197, 94, 0.6);
}

.matrix-port-cell.is-down {
    border-color: var(--border, rgba(255, 255, 255, 0.08));
    opacity: 0.72;
}

.matrix-port-cell.is-unreachable {
    border-color: rgba(239, 68, 68, 0.7);
}

/* Optical SFP cell variant */
.matrix-port-cell.is-sfp {
    background: rgba(168, 85, 247, 0.08);
    border-style: dashed;
}

[data-theme="light"] .matrix-port-cell.is-sfp,
body.light-theme .matrix-port-cell.is-sfp {
    background: rgba(168, 85, 247, 0.06);
    border-color: #a855f7;
}

/* Port top meta: LED on left, badge on right */
.matrix-port-meta {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2px;
}

.matrix-port-led {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #475569;
    flex-shrink: 0;
}

.matrix-port-led.led-green {
    background: #22c55e;
    box-shadow: 0 0 5px #22c55e;
}

.matrix-port-led.led-amber {
    background: #f59e0b;
    box-shadow: 0 0 5px #f59e0b;
}

.matrix-port-led.led-red {
    background: #ef4444;
    box-shadow: 0 0 5px #ef4444;
}

.matrix-port-tag {
    font-size: 7.5px;
    font-weight: 700;
    line-height: 1;
    border-radius: 2px;
    padding: 1px 2px;
    letter-spacing: 0.02em;
}

.matrix-port-tag.tag-sfp { color: #c084fc; background: rgba(192, 132, 252, 0.15); }
.matrix-port-tag.tag-cl { color: var(--accent, #38bdf8); background: rgba(56, 189, 248, 0.15); }
.matrix-port-tag.tag-up { color: #a855f7; background: rgba(168, 85, 247, 0.15); }
.matrix-port-tag.tag-lbd { color: #ef4444; background: rgba(239, 68, 68, 0.2); font-weight: 900; }

.matrix-port-number {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono, monospace);
    line-height: 1;
}

/* PON OLT Port Cell */
.matrix-port-cell.is-pon-olt {
    width: 76px;
    height: 44px;
    min-width: 76px;
    min-height: 44px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.45);
    border-radius: 6px;
    padding: 3px 6px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
}

.matrix-port-cell.is-pon-olt:hover {
    border-color: #10b981 !important;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}

.pon-cell-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.pon-cell-title {
    font-size: 11px;
    font-weight: 800;
    color: #10b981;
}

.pon-cell-count {
    font-size: 9.5px;
    font-weight: 700;
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.25);
    border-radius: 3px;
    padding: 1px 4px;
    text-align: center;
}

[data-theme="light"] .pon-cell-count,
body.light-theme .pon-cell-count {
    background: rgba(0, 0, 0, 0.06);
}

.pon-cell-action {
    font-size: 8px;
    color: var(--text-muted);
    text-align: center;
}

/* Footer Legend */
.matrix-footer-legend {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 10px;
    margin-top: 8px;
    border-top: 1px solid var(--border, rgba(255, 255, 255, 0.06));
    font-size: 11px;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 8px;
}

[data-theme="light"] .matrix-footer-legend,
body.light-theme .matrix-footer-legend {
    border-top-color: #e2e8f0;
}

.matrix-legend-items {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.matrix-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* PON Focus pulse highlight for cards */
@keyframes ponCardFocusPulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    50% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0.3); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.pon-focus-highlight {
    animation: ponCardFocusPulse 1.2s ease 2;
    border-color: #10b981 !important;
}

/* ==========================================================================
   7. Smooth Bottom Sheet Modal (.bottom-sheet)
   ========================================================================== */
.bottom-sheet {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    pointer-events: none;
    visibility: hidden;
    transition: visibility var(--dur-sheet);
}

.bottom-sheet.open,
.bottom-sheet.is-open,
.bottom-sheet[aria-hidden="false"] {
    visibility: visible;
    pointer-events: auto;
}

.bottom-sheet-backdrop {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity var(--dur-sheet) var(--ease-out);
}

.bottom-sheet.open .bottom-sheet-backdrop,
.bottom-sheet.is-open .bottom-sheet-backdrop,
.bottom-sheet[aria-hidden="false"] .bottom-sheet-backdrop {
    opacity: 1;
}

.bottom-sheet-panel {
    position: relative;
    z-index: 10;
    width: 100%;
    max-height: calc(90vh - var(--sat));
    max-height: calc(90dvh - var(--sat));
    background: var(--mobile-sheet-bg);
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    border-top: 1px solid var(--mobile-sheet-border);
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.6);
    transform: translateY(100%);
    transition: transform var(--dur-sheet) var(--ease-drawer);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding-bottom: calc(16px + var(--sab));
    box-sizing: border-box;
}

@media (min-width: 769px) {
    .bottom-sheet-panel {
        max-width: 580px;
        margin: 0 auto;
        border-radius: 16px 16px 0 0;
    }
}

.bottom-sheet.open .bottom-sheet-panel,
.bottom-sheet.is-open .bottom-sheet-panel,
.bottom-sheet[aria-hidden="false"] .bottom-sheet-panel {
    transform: translateY(0);
}

.bottom-sheet-drag-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 26px;
    cursor: grab;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
    padding-top: 8px;
    box-sizing: border-box;
}

.bottom-sheet-drag-handle::after {
    content: '';
    width: 36px;
    height: 3px;
    border-radius: 2px;
    background: var(--mobile-handle-bg);
    transition: background-color var(--dur-fast) var(--ease-out);
}

.bottom-sheet-drag-handle:active::after {
    background: var(--accent);
}

.bottom-sheet-header {
    padding: 6px 18px 12px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    gap: 8px;
}

.bottom-sheet-title {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.bottom-sheet-close {
    min-width: var(--touch-target-min);
    min-height: var(--touch-target-min);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    border-radius: var(--radius-sm, 5px);
    transition: color var(--dur-fast) var(--ease-out);
}

.bottom-sheet-close:hover,
.bottom-sheet-close:active {
    color: var(--text-primary);
}

.bottom-sheet-body,
.bottom-sheet-content {
    flex: 1 1 auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 16px 18px;
    box-sizing: border-box;
}

/* ==========================================================================
   8. Subscriber / Client Mobile Card (.client-hero-mobile, .optical-gauge)
   ========================================================================== */
.client-hero-mobile {
    background: var(--mobile-card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    padding: 16px 14px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}

[data-theme="light"] .client-hero-mobile,
body.light-theme .client-hero-mobile {
    background: var(--mobile-card-bg);
    border: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.client-hero-title {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
    line-height: 1.3;
}

.client-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 12.5px;
    color: var(--text-secondary);
    margin-top: 6px;
}

.client-section-card {
    background: var(--mobile-card-bg);
    border: 1px solid var(--mobile-card-border);
    border-radius: var(--radius-md, 8px);
    padding: 16px;
    margin-bottom: 14px;
    box-sizing: border-box;
}

.client-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.client-section-title {
    font-family: var(--font-display);
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Optical Signal Gauge */
.optical-gauge {
    background: rgba(0, 0, 0, 0.18);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm, 5px);
    padding: 14px;
    margin: 10px 0;
    box-sizing: border-box;
}

[data-theme="light"] .optical-gauge,
body.light-theme .optical-gauge {
    background: rgba(0, 0, 0, 0.03);
}

.gauge-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 8px;
}

.gauge-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.gauge-val {
    font-size: 18px;
    font-weight: 700;
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

.gauge-track {
    height: 8px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    margin: 8px 0;
}

[data-theme="light"] .gauge-track,
body.light-theme .gauge-track {
    background: rgba(0, 0, 0, 0.08);
}

.gauge-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, #10b981 0%, #38bdf8 100%);
    transition: width var(--dur-normal) var(--ease-out);
}

.gauge-good { color: var(--success); }
.gauge-warning { color: var(--warning); }
.gauge-danger { color: var(--danger); }

/* Diagnostic Action Buttons */
.diag-action-btn {
    min-height: 48px;
    min-width: var(--touch-target-min);
    padding: 10px 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-sm, 5px);
    font-size: 13.5px;
    font-weight: 500;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    cursor: pointer;
    box-sizing: border-box;
    transition: transform var(--dur-fast) var(--ease-out),
                background-color var(--dur-fast) var(--ease-out),
                border-color var(--dur-fast) var(--ease-out);
}

[data-theme="light"] .diag-action-btn,
body.light-theme .diag-action-btn {
    background: rgba(0, 0, 0, 0.04);
}

.diag-action-btn:active {
    transform: scale(0.96);
}

.diag-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

/* --- Mobile Emergency Banner --- */
.mobile-emergency-banner {
    border-radius: var(--radius-md, 8px);
    padding: 14px 16px;
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
}

.mobile-emergency-banner.banner-unreachable {
    background: rgba(168, 85, 247, 0.12);
    border: 1px solid rgba(168, 85, 247, 0.35);
}
.mobile-emergency-banner.banner-unreachable .banner-title {
    color: #c084fc;
}

.mobile-emergency-banner.banner-down {
    background: rgba(244, 63, 94, 0.12);
    border: 1px solid rgba(244, 63, 94, 0.35);
}
.mobile-emergency-banner.banner-down .banner-title {
    color: var(--danger);
}

.banner-icon {
    font-size: 26px;
    line-height: 1;
    margin-top: 2px;
    flex-shrink: 0;
}

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

.banner-title {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
    line-height: 1.3;
}

.banner-desc {
    font-size: 12.5px;
    color: var(--text-primary);
    line-height: 1.45;
    margin-bottom: 6px;
}

.banner-action-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    text-decoration: underline;
    color: inherit;
    margin-top: 4px;
}

/* --- Session Badges & Pulsing LEDs --- */
.session-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 8px;
    border-radius: var(--radius-xs, 4px);
    font-size: 11px;
    font-weight: 700;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    line-height: 1;
    white-space: nowrap;
}

.session-badge.session-online {
    background: rgba(16, 185, 129, 0.16);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.35);
}

.session-badge.session-offline {
    background: rgba(244, 63, 94, 0.16);
    color: var(--danger);
    border: 1px solid rgba(244, 63, 94, 0.35);
}

.pulse-dot.pulse-online {
    background: var(--success);
}

.pulse-dot.pulse-offline {
    background: var(--danger);
}

/* --- Touch Copy Buttons (>= 44x44px) --- */
.btn-touch-copy {
    min-width: 44px !important;
    min-height: 44px !important;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm, 5px);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 17px;
    padding: 0;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
    transition: transform var(--dur-fast) var(--ease-out),
                background-color var(--dur-fast) var(--ease-out),
                border-color var(--dur-fast) var(--ease-out);
}
[data-theme="light"] .btn-touch-copy,
body.light-theme .btn-touch-copy {
    background: rgba(0, 0, 0, 0.05);
}

.btn-touch-copy:active {
    transform: scale(0.92);
    background: rgba(255, 255, 255, 0.15);
}
.btn-touch-copy.copied {
    background: rgba(16, 185, 129, 0.2) !important;
    border-color: #10b981 !important;
}

/* --- Hero Credential Cards --- */
.hero-creds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 10px;
    margin: 14px 0;
}

.cred-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm, 5px);
    padding: 8px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
[data-theme="light"] .cred-card,
body.light-theme .cred-card {
    background: rgba(0, 0, 0, 0.02);
}

.cred-meta {
    flex: 1;
    min-width: 0;
}

.cred-label {
    font-size: 11px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 2px;
}

.cred-val {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
    word-break: break-all;
}

/* --- Optical Gauge Advanced Meter --- */
.optical-gauge-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    padding: 14px;
    margin: 12px 0;
}
[data-theme="light"] .optical-gauge-card,
body.light-theme .optical-gauge-card {
    background: rgba(0, 0, 0, 0.02);
}

.gauge-bar-track {
    height: 14px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.08);
    position: relative;
    display: flex;
    overflow: visible;
    margin: 16px 0 8px 0;
}

.gauge-zone {
    height: 100%;
}
.gauge-zone.zone-critical {
    background: var(--danger);
    border-radius: 4px 0 0 4px;
}
.gauge-zone.zone-warning {
    background: var(--warning);
}
.gauge-zone.zone-optimal {
    background: var(--success);
}
.gauge-zone.zone-overload {
    background: #f97316;
    border-radius: 0 4px 4px 0;
}

.gauge-marker {
    position: absolute;
    top: -6px;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 10;
    pointer-events: none;
    transition: left var(--dur-normal) var(--ease-out);
}

.gauge-pin {
    width: 3px;
    height: 26px;
    background: #ffffff;
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.9);
}

.gauge-marker-val {
    font-size: 10px;
    font-weight: 700;
    color: #ffffff;
    background: rgba(15, 23, 42, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 1px 5px;
    border-radius: var(--radius-xs, 4px);
    margin-top: 3px;
    white-space: nowrap;
    box-shadow: 0 2px 6px rgba(0,0,0,0.5);
}

.gauge-scale-legend {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
    font-family: var(--font-mono);
}

/* --- Engineer Tools Grid --- */
.engineer-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
    margin: 12px 0;
}

.tool-btn {
    min-height: 52px;
    padding: 10px 12px;
    border-radius: var(--radius-sm, 5px);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    text-align: left;
    -webkit-tap-highlight-color: transparent;
    transition: transform var(--dur-fast) var(--ease-out),
                background-color var(--dur-fast) var(--ease-out),
                border-color var(--dur-fast) var(--ease-out);
    color: var(--text-primary);
}
[data-theme="light"] .tool-btn,
body.light-theme .tool-btn {
    background: rgba(0, 0, 0, 0.03);
}

.tool-btn:active {
    transform: scale(0.95);
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
}

.tool-btn.active {
    border-color: var(--accent);
    background: rgba(14, 165, 233, 0.12);
}

.tool-icon {
    font-size: 22px;
    line-height: 1;
    flex-shrink: 0;
}

.tool-text {
    flex: 1;
    min-width: 0;
}

.tool-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    line-height: 1.2;
}

.tool-desc {
    font-size: 10.5px;
    color: var(--text-muted);
    display: block;
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Tool output box */
.tool-output-box {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm, 5px);
    padding: 14px;
    margin-top: 12px;
    animation: tool-in 200ms var(--ease-out);
}
[data-theme="light"] .tool-output-box,
body.light-theme .tool-output-box {
    background: rgba(0, 0, 0, 0.03);
}

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


.pair-badge {
    font-size: 11px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: var(--radius-xs, 4px);
    display: inline-block;
}
.pair-badge.badge-normal {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}
.pair-badge.badge-open {
    background: rgba(244, 63, 94, 0.15);
    color: var(--danger);
}
.pair-badge.badge-short {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
}

.pair-length {
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

/* --- Mobile Session Cards --- */
.session-cards-mobile {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.session-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-md, 8px);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
[data-theme="light"] .session-card,
body.light-theme .session-card {
    background: rgba(0, 0, 0, 0.02);
}

.session-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 6px;
}
[data-theme="light"] .session-card-head,
body.light-theme .session-card-head {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.session-card-body {
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 12.5px;
}

.session-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.session-row code {
    font-size: 12px;
}

.session-copy-btn {
    width: 32px;
    height: 32px;
    min-width: 32px;
    min-height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xs, 4px);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 14px;
}
[data-theme="light"] .session-copy-btn,
body.light-theme .session-copy-btn {
    background: rgba(0, 0, 0, 0.04);
}

/* --- Floating Toast --- */
.mobile-toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg-elevated, #141f36);
    border: 1px solid var(--border);
    color: #ffffff;
    padding: 10px 18px;
    border-radius: var(--radius-sm, 5px);
    font-size: 13px;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 3000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms var(--ease-out), transform 200ms var(--ease-out);
}
.mobile-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}


/* ==========================================================================
   9. Dashboard Device Cards, KPI Grid & Filter Chips
   ========================================================================== */
.mobile-device-cards,
.mobile-client-cards,
.mobile-alerts-cards {
    display: none;
}

@media (max-width: 768px) {
    .mobile-device-cards,
    .mobile-client-cards,
    .mobile-alerts-cards {
        display: flex !important;
        flex-direction: column !important;
        gap: 8px;
    }
    #devicesTableWrap,
    #servicesTableWrap,
    #clientsTableWrap {
        display: none !important;
    }
}

.mobile-device-card {
    background: var(--mobile-card-bg);
    border: 1px solid var(--mobile-card-border);
    border-radius: var(--radius-md, 8px);
    padding: 14px 16px;
    margin-bottom: 10px;
    position: relative;
    cursor: pointer;
    box-sizing: border-box;
    transition: transform var(--dur-fast) var(--ease-out),
                border-color var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) var(--ease-out);
}

.mobile-device-card:hover {
    border-color: var(--mobile-card-hover);
}

.mobile-device-card:active {
    transform: scale(0.98);
}

.device-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.device-card-name {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

.device-card-ip {
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

.device-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--text-muted);
}

.device-ports-summary {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11.5px;
    margin-top: 8px;
    font-family: var(--font-mono);
}

/* Mobile KPI Grid */
.mobile-kpi-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.mobile-kpi-item {
    background: var(--mobile-card-bg);
    border: 1px solid var(--mobile-card-border);
    border-radius: var(--radius-sm, 5px);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-sizing: border-box;
}

.mobile-kpi-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
}

.mobile-kpi-val {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* Mobile Filter Chips (Horizontally Scrollable) */
.mobile-filter-chips {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding: 4px 2px 12px 2px;
    scrollbar-width: none;
}

.mobile-filter-chips::-webkit-scrollbar {
    display: none;
}

.mobile-filter-chip {
    min-height: 38px;
    min-width: var(--touch-target-min);
    padding: 6px 12px;
    border-radius: var(--radius-xs, 4px);
    font-size: 12.5px;
    font-weight: 500;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--mobile-chip-border);
    background: var(--mobile-chip-bg);
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    transition: all var(--dur-fast) var(--ease-out);
    box-sizing: border-box;
}

.mobile-filter-chip:active {
    transform: scale(0.94);
}

.mobile-filter-chip.active {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    box-shadow: 0 2px 8px var(--accent-glow);
    font-weight: 600;
}

/* ==========================================================================
   10. Extra Narrow Screens Breakpoint: <= 480px (Smartphones)
   ========================================================================== */
@media (max-width: 480px) {
    .content {
        padding: 12px 10px calc(var(--mobile-nav-height) + var(--sab) + 16px) 10px !important;
    }

    .page-header h1 {
        font-size: 18px !important;
    }

    .stat-value {
        font-size: 20px !important;
    }

    .port-card-metrics {
        grid-template-columns: 1fr 1fr !important;
        gap: 6px !important;
        padding: 8px 10px !important;
    }

    .port-metric-value {
        font-size: 12.5px !important;
    }

    .port-card-actions .btn {
        flex: 1 1 100% !important;
    }

    .faceplate-grid {
        grid-template-rows: repeat(2, 34px) !important;
        grid-auto-columns: 34px !important;
        gap: 4px !important;
    }

    .faceplate-port {
        width: 34px !important;
        height: 34px !important;
        min-width: 34px !important;
        min-height: 34px !important;
    }

    .faceplate-port-num {
        font-size: 8.5px !important;
    }

    .port-led {
        width: 5px !important;
        height: 5px !important;
        margin-bottom: 2px !important;
    }

    .diag-grid {
        grid-template-columns: 1fr !important;
    }

    .mobile-kpi-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 8px !important;
    }

    .mobile-kpi-val {
        font-size: 18px !important;
    }
}

/* ==========================================================================
   11. Switch Mobile View Enhancements (Subagent 2)
   ========================================================================== */

/* Page Switch shell overrides on mobile */
@media (max-width: 768px) {
    body.page-switch .sidebar,
    body.page-switch #sidebar {
        display: none !important;
        width: 0 !important;
    }

    body.page-switch .header {
        display: none !important;
    }

    body.page-switch .page-nav-bar {
        display: none !important;
    }

    body.page-switch .main {
        padding-top: calc(var(--mobile-top-bar-height) + var(--sat)) !important;
        padding-bottom: calc(var(--mobile-nav-height) + var(--sab) + 20px) !important;
        margin-left: 0 !important;
        width: 100% !important;
    }

    body.page-switch .page-content-scroll {
        padding: 0 !important;
    }

    body.page-switch .content {
        padding: 12px 10px calc(var(--mobile-nav-height) + var(--sab) + 20px) 10px !important;
    }

    body.page-switch #switchMainContainer > div {
        padding: 16px 12px !important;
        border-radius: 10px !important;
        margin-bottom: 14px !important;
    }

    /* На мобильных устройствах (< 768px) скрываем переключатель видов и всегда отображаем карточки */
    .port-view-controls {
        display: none !important;
    }
}

/* Port View Switcher (Desktop Default) */
.port-view-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
}

.port-view-switcher {
    display: inline-flex;
    background: var(--bg-base, #080c14);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm, 6px);
    padding: 3px;
    gap: 3px;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
}

.port-view-btn {
    background: transparent;
    border: none;
    padding: 6px 14px;
    border-radius: var(--radius-xs, 4px);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--dur-fast) var(--ease-out);
    display: flex;
    align-items: center;
    gap: 5px;
    min-height: 38px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.port-view-btn:hover {
    color: var(--text-primary);
}

.port-view-btn.active {
    background: var(--accent);
    color: #ffffff;
    box-shadow: 0 2px 8px var(--accent-glow);
}

.mobile-port-cards-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

@media (min-width: 900px) {
    .mobile-port-cards-grid {
        flex-direction: row !important;
        flex-wrap: wrap !important;
        align-items: stretch;
    }
    .mobile-port-cards-grid .mobile-port-card {
        flex: 1 1 calc(33.333% - 10px);
        min-width: 320px;
        margin-bottom: 0;
    }
    .mobile-port-cards-grid .mpc-pon-separator {
        flex: 0 0 100% !important;
        width: 100% !important;
        box-sizing: border-box;
    }
}

.ports-faceplate-wrap {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Mobile Search Dropdown Bar */
.mobile-search-bar {
    position: fixed;
    top: calc(var(--mobile-top-bar-height) + var(--sat));
    left: 0;
    right: 0;
    background: var(--mobile-sheet-bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 12px;
    z-index: 850;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    animation: mobileSearchSlideDown 0.18s var(--ease-out);
}

@keyframes mobileSearchSlideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.mobile-search-inner {
    display: flex;
    align-items: center;
    background: var(--bg-base, rgba(0, 0, 0, 0.25));
    border: 1px solid var(--border);
    border-radius: var(--radius-sm, 5px);
    padding: 0 10px;
    height: 40px;
    gap: 8px;
}

.mobile-search-inner input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
}

.mobile-search-clear {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Enhanced Port Card Layout */
.mpc-port-top-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.mpc-port-num {
    font-family: var(--font-mono, monospace);
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-variant-numeric: tabular-nums;
}

.mpc-client-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-sm, 5px);
    padding: 8px 10px;
    margin-bottom: 8px;
}

[data-theme="light"] .mpc-client-box,
body.light-theme .mpc-client-box {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.07);
}

.mpc-client-title-line {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.mpc-client-link {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
}

.mpc-client-name {
    font-size: 12px;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 2px;
}

.mpc-client-addr {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 6px;
    font-family: var(--font-mono);
}

.mpc-neighbor-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: var(--radius-xs, 4px);
    margin-bottom: 8px;
    font-size: 12px;
    font-family: var(--font-mono);
}

.mpc-upstream-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: var(--radius-xs, 4px);
    margin-bottom: 8px;
    font-size: 12px;
    font-family: var(--font-mono);
}

.mpc-metrics-table {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
    background: rgba(0, 0, 0, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-xs, 4px);
    padding: 8px 10px;
    margin-bottom: 10px;
}

[data-theme="light"] .mpc-metrics-table,
body.light-theme .mpc-metrics-table {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.mpc-metric-row {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.mpc-metric-lbl {
    font-size: 9.5px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    font-weight: 600;
}

.mpc-metric-val {
    font-family: var(--font-mono, monospace);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mpc-actions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.mpc-touch-btn {
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 6px 4px;
    border-radius: var(--radius-sm, 5px);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--dur-fast) var(--ease-out);
    white-space: nowrap;
}

[data-theme="light"] .mpc-touch-btn,
body.light-theme .mpc-touch-btn {
    background: rgba(0, 0, 0, 0.03);
}

.mpc-touch-btn:active {
    transform: scale(0.95);
    background: var(--accent);
    color: #ffffff;
}

/* Mobile Events Log Cards */
.mobile-events-container {
    display: none;
    flex-direction: column;
    gap: 8px;
}

@media (max-width: 768px) {
    .desktop-only-events {
        display: none !important;
    }
    .mobile-events-container {
        display: flex !important;
    }
}

@media (min-width: 769px) {
    .mobile-events-container {
        display: none !important;
    }
}

.mobile-event-card {
    background: var(--mobile-card-bg);
    border: 1px solid var(--mobile-card-border);
    border-radius: var(--radius-sm, 5px);
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mec-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.mec-time {
    font-family: var(--font-mono, monospace);
    font-size: 11px;
    color: var(--text-muted);
}

.mec-target {
    font-size: 11px;
    color: var(--text-secondary);
}

.mec-reason {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-primary);
}

.mec-output {
    font-family: var(--font-mono, monospace);
    font-size: 10.5px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs, 4px);
    padding: 4px 8px;
    word-break: break-all;
    color: var(--text-secondary);
}

[data-theme="light"] .mec-output,
body.light-theme .mec-output {
    background: rgba(0, 0, 0, 0.04);
}

/* Toast */
.switch-toast {
    position: fixed;
    bottom: calc(var(--mobile-nav-height) + var(--sab) + 14px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-elevated, #141f36);
    color: #ffffff;
    border: 1px solid var(--accent);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    padding: 8px 16px;
    border-radius: var(--radius-sm, 5px);
    font-size: 13px;
    font-weight: 600;
    z-index: 1200;
    pointer-events: none;
    animation: toastFadeIn 0.2s var(--ease-out);
}

@keyframes toastFadeIn {
    from { opacity: 0; transform: translate(-50%, 8px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

/* ==========================================================================
   12. Small Screens Breakpoint: <= 375px (iPhone SE/Mini)
   ========================================================================== */
@media (max-width: 375px) {
    .client-hero-title,
    .page-header h1 {
        font-size: 85% !important;
    }
    .mobile-kpi-grid {
        gap: 6px !important;
    }
    .mobile-kpi-item,
    .client-hero-mobile,
    .mobile-device-card {
        padding: 10px !important;
    }
    .faceplate-grid {
        gap: 2px !important;
    }
    .faceplate-port {
        width: 32px !important;
        height: 32px !important;
        min-width: 32px !important;
        min-height: 32px !important;
    }
}

/* ==========================================================================
   13. Global Touch & Interaction Enhancements
   ========================================================================== */
a, button, .btn, .icon-btn, .tab-btn, [role="button"], .faceplate-port, .mobile-nav-item, .mobile-filter-chip {
    touch-action: manipulation;
}

/* ==========================================================================
   14. Responsive Tables (Mobile)
   ========================================================================== */
/* Allow long text in explicit wrap columns */
.table td.cell-wrap,
.table td.col-desc,
.table td.col-message,
.table td.col-comment,
.ports-table td.col-desc {
    word-break: break-word;
    white-space: normal;
}

/* Hard protection for tabular data, timestamps, numbers, IP/MAC, and badges:
   NEVER break mid-timestamp (e.g. 19:32:45) or mid-word */
.tabular-nums,
code.tabular-nums,
.log-time,
.event-time,
.mec-time,
.time-col,
.time-cell,
.date-cell,
.ip-badge,
.mac-badge,
.status-badge,
.badge,
.port-tag,
.port-num,
.port-name,
.uptime-val,
.duration {
    white-space: nowrap !important;
    word-break: keep-all !important;
    overflow-wrap: normal !important;
    flex-shrink: 0 !important;
}

.table-responsive, .ports-table-wrap, .table-container, .table-wrap, .port-history-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ==========================================================================
   15. iOS Keyboard Fix
   ========================================================================== */
@media (max-width: 768px) {
    body.keyboard-open .mobile-bottom-nav {
        transform: translateY(100%);
        transition: transform var(--dur-normal) var(--ease-out);
    }
}

/* ==========================================================================
   16. Port History Modal & Discrepancy Popovers
   ========================================================================== */
.port-history-overlay {
    position: fixed;
    inset: 0;
    z-index: 1400;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    box-sizing: border-box;
}

.port-history-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 1;
}

.port-history-dialog {
    position: relative;
    z-index: 2;
    background: var(--bg-surface, #0e1626);
    border: 1px solid var(--border, rgba(148, 163, 184, 0.18));
    border-radius: 14px;
    width: 100%;
    max-width: 680px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
    overflow: hidden;
    animation: modalScaleIn 180ms cubic-bezier(0.23, 1, 0.32, 1);
}

@keyframes modalScaleIn {
    0% { transform: scale(0.96); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.port-history-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border, rgba(148, 163, 184, 0.15));
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 0, 0, 0.12);
}

.port-history-header-icon {
    font-size: 20px;
}

.port-history-header-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.port-history-close-btn {
    position: absolute;
    right: 14px;
    top: 14px;
    background: none;
    border: none;
    color: var(--text-muted, #94a3b8);
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
    z-index: 3;
}

.port-history-close-btn:hover {
    color: var(--text-primary, #fff);
    background: rgba(255, 255, 255, 0.08);
}

.port-history-loading {
    padding: 48px 20px;
    text-align: center;
    color: var(--text-muted);
}

.port-history-spinner {
    font-size: 28px;
    margin-bottom: 10px;
    animation: spin 1.2s linear infinite;
    display: inline-block;
}

.port-history-content {
    padding: 16px 20px;
    overflow-y: auto;
    flex: 1;
}

.port-history-table-wrap {
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid var(--border, rgba(148, 163, 184, 0.12));
}

.port-history-table {
    width: 100%;
    min-width: 680px; /* Preserve columns and enable horizontal scroll on mobile */
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

.port-history-table th {
    padding: 10px 12px;
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border, rgba(148, 163, 184, 0.12));
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap !important;
}

.port-history-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border, rgba(148, 163, 184, 0.08));
    color: var(--text-secondary);
}

.port-history-table td:first-child,
.port-history-table td:nth-child(2),
.port-history-table td:nth-child(3),
.port-history-table td:nth-child(4),
.port-history-table td:last-child {
    white-space: nowrap !important;
}

.flap-details code.tabular-nums {
    white-space: nowrap !important;
    word-break: keep-all !important;
    overflow-wrap: normal !important;
    flex-shrink: 0 !important;
}

.port-history-table tr:last-child td {
    border-bottom: none;
}

/* Discrepancy Indicator & Popover */
.discrepancy-inline-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
}

.discrepancy-icon-btn {
    background: rgba(245, 158, 11, 0.18);
    border: 1px solid rgba(245, 158, 11, 0.45);
    color: #f59e0b;
    border-radius: 6px;
    width: 22px;
    height: 22px;
    font-size: 12px;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    user-select: none;
    -webkit-user-select: none;
    line-height: 1;
    margin-left: 6px;
}

.discrepancy-icon-btn:hover,
.discrepancy-icon-btn.active {
    background: rgba(245, 158, 11, 0.25);
    border-color: #f59e0b;
}

.discrepancy-popover {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1250;
    width: 310px;
    max-width: calc(100vw - 32px);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    font-size: 12px;
    line-height: 1.45;
    color: var(--text-primary);
    text-align: left;
    white-space: normal;
    box-sizing: border-box;
}

.discrepancy-popover.open {
    display: block;
    animation: popoverFadeIn 140ms cubic-bezier(0.23, 1, 0.32, 1);
}

.discrepancy-popover::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: #0f172a transparent transparent transparent;
}

@keyframes popoverFadeIn {
    0% { opacity: 0; transform: translate(-50%, 4px); }
    100% { opacity: 1; transform: translate(-50%, 0); }
}

.discrepancy-popover-title {
    font-weight: 700;
    color: #f59e0b;
    margin-bottom: 8px;
    font-size: 12.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.discrepancy-popover-item {
    margin-bottom: 6px;
    font-size: 11.5px;
    padding: 4px 6px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 4px;
}

.discrepancy-popover-item b {
    color: #93c5fd;
}

.discrepancy-popover-msg {
    margin-top: 8px;
    padding-top: 6px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 11px;
    color: #cbd5e1;
}

/* ==========================================================================
   Universal Mobile Global Search Modal Overlay
   ========================================================================== */
body.search-modal-open {
    overflow: hidden !important;
    touch-action: none !important;
}

.mobile-search-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    height: 100dvh !important;
    background: rgba(0, 0, 0, 0.8) !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    z-index: 9999 !important;
    display: none;
    flex-direction: column;
    padding: max(14px, env(safe-area-inset-top, 14px)) 12px 14px 12px !important;
    box-sizing: border-box !important;
}

.mobile-search-overlay.open {
    display: flex !important;
}

.mobile-search-box {
    background: var(--bg-surface, #1e293b);
    border: 1px solid var(--border, #334155);
    border-radius: 14px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
    max-height: calc(100dvh - 30px);
    box-sizing: border-box;
}

.mobile-search-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-search-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border, #334155);
    border-radius: 10px;
    padding: 11px 14px;
    font-size: 15px;
    color: var(--text-primary);
    outline: none;
    -webkit-appearance: none;
}

.mobile-search-input:focus {
    border-color: var(--accent, #38bdf8);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.mobile-search-results {
    max-height: calc(100dvh - 110px);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.mobile-search-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    touch-action: pan-y;
}

.mobile-search-item:hover, .mobile-search-item:active {
    background: rgba(56, 189, 248, 0.12) !important;
    border-color: rgba(56, 189, 248, 0.35) !important;
}

.mobile-search-badge {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}

/* ==========================================================================
   17. Switch sysUpTime mobile alignment fix
   ========================================================================== */
@media (max-width: 768px) {
    .hero-sys-uptime {
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        justify-content: flex-start !important;
        gap: 2px !important;
        margin-top: 4px !important;
        padding-top: 4px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .hero-sys-uptime-label {
        font-size: 10px !important;
        white-space: nowrap !important;
        letter-spacing: 0.02em !important;
        line-height: 1.2 !important;
    }

    .hero-sys-uptime-val {
        font-size: 12px !important;
        white-space: nowrap !important;
        text-align: left !important;
        line-height: 1.2 !important;
    }
}

/* ==========================================================================
   19. Dashboard Redesign Mobile Adaptations (Subagent 3)
   ========================================================================== */
@media (max-width: 1024px) {
    .dashboard-hero-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }
}

@media (max-width: 768px) {
    .dashboard-hero-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
        margin-bottom: 16px !important;
    }

    .dash-card {
        padding: 14px 16px !important;
        border-radius: var(--radius-md, 8px) !important;
    }

    .dash-chart-body {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 14px !important;
    }

    .dash-chart-wrapper {
        margin: 0 auto !important;
    }

    .dash-hero-value .tabular-nums {
        font-size: 26px !important;
    }

    .compliance-popover {
        position: fixed !important;
        left: 12px !important;
        right: 12px !important;
        top: auto !important;
        bottom: calc(var(--mobile-nav-height) + var(--sab) + 12px) !important;
        max-width: none !important;
        width: auto !important;
        z-index: 2000 !important;
    }
}