/* =========================================
   DRIVE MEASUREMENT PAGE
   Vertical tab sidebar + map layout
   ========================================= */

/* ---- CSS Variables ---- */
:root {
    --dm-bg-base: var(--ls-bg-base);
    --dm-bg-panel: rgba(30, 30, 30, 0.95);
    --dm-bg-card: var(--ls-bg-card);
    --dm-bg-input: var(--ls-bg-input);
    --dm-bg-hover: #2a2a2a;
    --dm-border: #333333;
    --dm-border-light: #444;
    --dm-text: #ffffff;
    --dm-text-muted: #a0a0a0;
    --dm-accent: var(--ls-accent);
    --dm-accent-glow: var(--ls-accent-glow);
    --dm-danger: var(--ls-danger);
    --dm-info: #3498db;
    --dm-tab-width: 48px;
    --dm-panel-width: 360px;
    --dm-sidebar-width: calc(var(--dm-tab-width) + var(--dm-panel-width));
    /* Carrier colors */
    --dm-mtn: #FFD700;
    --dm-cellc: #00BFFF;
    --dm-capitec: #DC143C;
    --dm-vodacom: #E60000;
    --dm-telkom: #0066FF;
    --dm-rain: #7B2FBE;
}

/* ---- Page Layout ---- */
body.drive-measurement-page {
    overflow: hidden !important;
    margin: 0;
    padding: 0;
}

.dm-container {
    position: fixed;
    top: var(--ls-nav-height); /* below navbar */
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    background: var(--dm-bg-base);
}

.dm-map-area #map {
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ---- Level Filter Buttons (Signal + Throughput) ---- */
.dm-signal-filters {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.dm-signal-btn,
.dm-throughput-btn {
    flex: 1;
    min-width: 55px;
    padding: 0.35rem 0.25rem;
    border: 1px solid var(--dm-border-light);
    border-radius: 6px;
    background: transparent;
    color: var(--dm-text-muted);
    font-size: 0.7rem;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

.dm-signal-btn:hover,
.dm-throughput-btn:hover {
    background: var(--dm-bg-hover);
    color: var(--dm-text);
}

.dm-signal-btn.active,
.dm-throughput-btn.active {
    background: var(--dm-accent);
    color: #000;
    border-color: var(--dm-accent);
}

/* ---- Color Mode Selector ---- */
.dm-color-modes {
    display: flex;
    gap: 0.35rem;
}

.dm-color-mode-btn,
.dm-collection-mode-btn {
    flex: 1;
    padding: 0.4rem 0.25rem;
    border: 1px solid var(--dm-border-light);
    border-radius: 6px;
    background: transparent;
    color: var(--dm-text-muted);
    font-size: 0.7rem;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

.dm-color-mode-btn:hover,
.dm-collection-mode-btn:hover {
    background: var(--dm-bg-hover);
    color: var(--dm-text);
}

.dm-color-mode-btn.active,
.dm-collection-mode-btn.active {
    background: var(--dm-bg-hover);
    color: var(--dm-accent);
    border-color: var(--dm-accent);
}

/* ---- Legend ---- */
.dm-legend {
    background: var(--dm-bg-card);
    border: 1px solid var(--dm-border);
    border-radius: 6px;
    padding: 0.6rem 0.75rem;
}

.dm-legend-title {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--dm-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.dm-legend-bar {
    display: flex;
    height: 10px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.4rem;
}

.dm-legend-bar > div {
    flex: 1;
}

.dm-legend-labels {
    display: flex;
    justify-content: space-between;
    gap: 6px;
    font-size: 0.65rem;
    color: var(--dm-text-muted);
}

.dm-legend-labels > span {
    flex: 1;
    text-align: center;
    white-space: nowrap;
}

.dm-legend-labels > span:first-child { text-align: left; }
.dm-legend-labels > span:last-child  { text-align: right; }

.dm-legend-items {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.dm-legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--dm-text);
}

.dm-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ---- Carrier Toggles ---- */
.dm-carrier-toggles {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.dm-carrier-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 0.8rem;
    color: var(--dm-text);
}

.dm-carrier-toggle:hover {
    background: var(--dm-bg-hover);
}

.dm-carrier-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ---- Technology Radio Buttons ---- */
.dm-tech-radios {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.dm-tech-radio {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    color: var(--dm-text);
    cursor: pointer;
}

.dm-tech-radio input[type="radio"] {
    accent-color: var(--dm-accent);
}

/* ---- Time Slider ---- */
.dm-time-slider {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.dm-time-slider input[type="range"] {
    width: 100%;
    accent-color: var(--dm-accent);
    height: 4px;
}

.dm-time-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--dm-text-muted);
}

/* ---- Upload Dropzone ---- */
.dm-dropzone {
    border: 2px dashed var(--dm-border-light);
    border-radius: 8px;
    padding: 1.5rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: rgba(255, 255, 255, 0.02);
}

.dm-dropzone:hover,
.dm-dropzone.drag-over {
    border-color: var(--dm-accent);
    background: rgba(0, 188, 140, 0.05);
}

.dm-dropzone i {
    font-size: 1.5rem;
    color: var(--dm-text-muted);
    display: block;
    margin-bottom: 0.5rem;
}

.dm-dropzone p {
    font-size: 0.8rem;
    color: var(--dm-text-muted);
    margin: 0;
}

.dm-dropzone .dm-dropzone-file {
    font-size: 0.75rem;
    color: var(--dm-accent);
    margin-top: 0.3rem;
}

/* ---- Progress Bar ---- */
.dm-progress {
    height: 6px;
    background: var(--dm-bg-input);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.dm-progress-bar {
    height: 100%;
    background: var(--dm-accent);
    border-radius: 3px;
    transition: width 0.2s linear;
    width: 0%;
}

/* Indeterminate "processing on server" state */
.dm-progress-bar.dm-progress-indeterminate {
    width: 100% !important;
    background: linear-gradient(90deg,
        var(--dm-accent) 0%,
        rgba(0, 188, 140, 0.5) 50%,
        var(--dm-accent) 100%);
    background-size: 200% 100%;
    animation: dm-progress-pulse 1.5s linear infinite;
}

@keyframes dm-progress-pulse {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.dm-progress-bar.dm-progress-success {
    background: var(--dm-accent);
}

.dm-progress-bar.dm-progress-error {
    background: var(--dm-danger);
}

/* ---- Per-upload status panel ---- */
.dm-upload-status {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-top: 0.5rem;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 0.72rem;
    line-height: 1.4;
    border: 1px solid transparent;
}

.dm-upload-status i {
    margin-top: 1px;
    flex-shrink: 0;
}

.dm-upload-status-uploading {
    background: rgba(52, 152, 219, 0.08);
    border-color: rgba(52, 152, 219, 0.25);
    color: #b8d8f0;
}

.dm-upload-status-uploading i {
    color: var(--dm-info);
}

.dm-upload-status-processing {
    background: rgba(0, 188, 140, 0.08);
    border-color: rgba(0, 188, 140, 0.3);
    color: #a8e6d2;
}

.dm-upload-status-processing i {
    color: var(--dm-accent);
}

.dm-upload-status-success {
    background: rgba(0, 188, 140, 0.1);
    border-color: var(--ls-accent-border);
    color: #c4f0e0;
    font-weight: 500;
}

.dm-upload-status-success i {
    color: var(--dm-accent);
}

.dm-upload-status-error {
    background: rgba(231, 76, 60, 0.1);
    border-color: rgba(231, 76, 60, 0.4);
    color: #f5c4be;
}

.dm-upload-status-error i {
    color: var(--dm-danger);
}

/* ---- Campaign Cards ---- */
.dm-campaign-card {
    background: var(--dm-bg-card);
    border: 1px solid var(--dm-border);
    border-radius: 6px;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dm-campaign-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dm-text);
}

.dm-campaign-meta {
    font-size: 0.7rem;
    color: var(--dm-text-muted);
    margin-top: 2px;
}

.dm-campaign-counts {
    display: flex;
    gap: 0.75rem;
}

.dm-campaign-count {
    font-size: 0.7rem;
    color: var(--dm-text-muted);
}

.dm-campaign-count strong {
    color: var(--dm-accent);
}

/* ---- Analysis Stats ---- */
.dm-stat-rows {
    display: flex;
    flex-direction: column;
}

.dm-stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--dm-border);
    font-size: 0.8rem;
}

.dm-stat-row:last-child {
    border-bottom: none;
}

.dm-stat-row-label {
    color: var(--dm-text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.dm-stat-row-label i {
    color: var(--dm-info);
    font-size: 0.75rem;
}

.dm-stat-row-value {
    color: var(--dm-accent);
    font-weight: 600;
}

/* ---- Chart Containers ---- */
.dm-chart-wrapper {
    background: var(--dm-bg-card);
    border: 1px solid var(--dm-border);
    border-radius: 6px;
    padding: 0.75rem;
    margin-bottom: 0.75rem;
}

.dm-chart-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--dm-text);
    margin-bottom: 0.5rem;
}

.dm-chart-wrapper canvas {
    max-height: 180px;
}

/* Coupled charts: throughput pane stacked directly over the signal pane, same x-axis,
   so the signal at any time reads straight down from the speed. */
.dm-chart-couple .dm-couple-main { position: relative; height: 150px; }
.dm-chart-couple .dm-couple-sub { position: relative; height: 94px; margin-top: 2px; }
.dm-chart-couple .dm-couple-main canvas,
.dm-chart-couple .dm-couple-sub canvas { max-height: none; }

/* Drill top row: technology mix beside the band matrix. */
.dm-drill-top { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: 8px; }
.dm-drill-top .dm-chart-wrapper { margin-bottom: 0.75rem; }
@media (max-width: 560px) { .dm-drill-top { grid-template-columns: 1fr; } }

/* Carrier x band heatmap matrix: rows = carriers, cols = bands by frequency, colour = avg Mbps. */
.dm-bandmtx { display: grid; gap: 3px; align-items: stretch; }
.dm-bandmtx-corner { font-size: 0.5rem; color: var(--dm-text-muted, #888); align-self: end; }
.dm-bandmtx-hdr { text-align: center; font-size: 0.6rem; font-weight: 600; color: var(--dm-text, #fff); line-height: 1.05; }
.dm-bandmtx-hdr span { display: block; font-size: 0.48rem; font-weight: 400; color: var(--dm-text-muted, #888); }
.dm-bandmtx-rowlbl { display: flex; align-items: center; gap: 4px; font-size: 0.62rem; font-weight: 600; color: var(--dm-text, #fff); white-space: nowrap; padding-right: 4px; }
.dm-bandmtx-cell { border-radius: 3px; min-height: 36px; display: flex; flex-direction: column; align-items: center; justify-content: center; line-height: 1.1; gap: 1px; }
.dm-bandmtx-cell b { font-size: 0.74rem; font-weight: 700; color: #eafff3; text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55); }
.dm-bandmtx-cell span { font-size: 0.56rem; font-weight: 500; color: rgba(234, 255, 243, 0.8); text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5); }
.dm-bandmtx-cell.is-bright b { color: #04241a; text-shadow: 0 1px 1px rgba(255, 255, 255, 0.25); }
.dm-bandmtx-cell.is-bright span { color: rgba(4, 36, 26, 0.85); text-shadow: none; }
.dm-bandmtx-empty { background: rgba(255, 255, 255, 0.03); }

/* ---- Loading Overlay ---- */
.dm-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.dm-loading.show {
    display: flex;
}

.dm-loading-content {
    text-align: center;
    color: var(--dm-text);
}

.dm-loading-content .spinner-border {
    width: 2rem;
    height: 2rem;
    margin-bottom: 0.5rem;
}

.dm-loading-text {
    font-size: 0.85rem;
    color: var(--dm-text-muted);
}

/* ---- Map Controls (Leaflet overrides) ---- */
.dm-map-area .leaflet-bar a {
    background-color: var(--dm-bg-card);
    color: var(--dm-text);
    border-color: var(--dm-border);
}

.dm-map-area .leaflet-bar a:hover {
    background-color: var(--dm-bg-hover);
}

.dm-map-area .leaflet-control-layers-expanded {
    background: var(--dm-bg-card);
    color: var(--dm-text);
    border: 1px solid var(--dm-border);
    border-radius: 6px;
}

.dm-map-area .leaflet-control-layers label {
    color: var(--dm-text);
}

.dm-map-area .leaflet-control-layers input[type="radio"] {
    accent-color: var(--dm-accent);
}

/* ---- Floating Map Legend Overlay ---- */
.dm-map-legend-overlay {
    background: var(--ls-bg-popup);
    color: #f0f0f0;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.72rem;
    line-height: 1.4;
    box-shadow:
        0 0 0 1px rgba(0, 0, 0, 0.5),
        0 6px 20px rgba(0, 0, 0, 0.55);
    min-width: 140px;
    max-width: 200px;
    margin-bottom: 24px !important;
    margin-left: 10px !important;
}

.dm-map-legend-overlay .dm-map-legend-title {
    font-size: 0.7rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dm-map-legend-overlay .dm-map-legend-items {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.dm-map-legend-overlay .dm-map-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.9);
}

.dm-map-legend-overlay .dm-map-legend-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    flex-shrink: 0;
    border: 1.5px solid rgba(255, 255, 255, 0.2);
}

.dm-map-legend-overlay .dm-map-legend-bar {
    display: flex;
    height: 10px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 5px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.dm-map-legend-overlay .dm-map-legend-bar > div {
    flex: 1;
}

.dm-map-legend-overlay .dm-map-legend-scale {
    display: flex;
    justify-content: space-between;
    gap: 6px;
    font-size: 0.62rem;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 2px;
    font-weight: 500;
}

.dm-map-legend-overlay .dm-map-legend-scale > span,
.dm-map-legend-overlay .dm-map-legend-scale-vals > span {
    flex: 1;
    text-align: center;
    white-space: nowrap;
}

.dm-map-legend-overlay .dm-map-legend-scale > span:first-child,
.dm-map-legend-overlay .dm-map-legend-scale-vals > span:first-child {
    text-align: left;
}

.dm-map-legend-overlay .dm-map-legend-scale > span:last-child,
.dm-map-legend-overlay .dm-map-legend-scale-vals > span:last-child {
    text-align: right;
}

.dm-map-legend-overlay .dm-map-legend-scale-vals {
    display: flex;
    justify-content: space-between;
    gap: 6px;
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.45);
}

.dm-map-legend-overlay .dm-map-legend-empty {
    display: flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
    font-size: 0.7rem;
}

.dm-map-legend-overlay .dm-map-legend-empty i {
    color: var(--dm-info);
}

/* ---- Legend notice ---- */
.dm-legend-notice {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 10px;
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.3);
    border-radius: 6px;
    color: #b8d8f0;
    font-size: 0.7rem;
    line-height: 1.4;
}

.dm-legend-notice i {
    color: var(--dm-info);
    margin-top: 1px;
    flex-shrink: 0;
}

/* ---- Popup — neutral, readable on any map layer ----
   Solid dark bg, no transparency, no backdrop-filter.
   !important to override any Leaflet default. */
.leaflet-popup.dm-popup-custom .leaflet-popup-content-wrapper {
    background: var(--ls-bg-popup) !important;
    background-color: var(--ls-bg-popup) !important;
    color: #f0f0f0 !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    border-radius: 10px !important;
    box-shadow:
        0 0 0 1px rgba(0, 0, 0, 0.6),
        0 8px 28px rgba(0, 0, 0, 0.7),
        0 2px 8px rgba(0, 0, 0, 0.5) !important;
    padding: 0 !important;
    font-size: 0.8rem !important;
    opacity: 1 !important;
}

.leaflet-popup.dm-popup-custom .leaflet-popup-content {
    margin: 0 !important;
    line-height: 1.4 !important;
    background: transparent !important;
    color: #f0f0f0 !important;
}

.leaflet-popup.dm-popup-custom .leaflet-popup-tip-container {
    overflow: visible !important;
}

.leaflet-popup.dm-popup-custom .leaflet-popup-tip {
    background: var(--ls-bg-popup) !important;
    background-color: var(--ls-bg-popup) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5) !important;
    opacity: 1 !important;
}

/* Ensure the inner content div is also opaque (defensive) */
.leaflet-popup.dm-popup-custom .dm-popup-content {
    background: var(--ls-bg-popup);
    border-radius: 10px;
    overflow: hidden;
}

.dm-popup-custom .leaflet-popup-close-button {
    color: rgba(255, 255, 255, 0.5);
    font-size: 18px;
    top: 6px;
    right: 8px;
}

.dm-popup-custom .leaflet-popup-close-button:hover {
    color: #fff;
}

.dm-popup-content {
    padding: 0;
}

.dm-popup-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px 8px;
    border-bottom: 1px solid var(--ls-border-subtle);
}

.dm-popup-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
    border: 1.5px solid rgba(255, 255, 255, 0.25);
}

.dm-popup-carrier-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: #fff;
    flex: 1;
}

.dm-popup-tech-badge {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--ls-border-medium);
    border-radius: 4px;
    padding: 1px 7px;
    font-size: 0.65rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dm-popup-body {
    padding: 8px 12px 10px;
}

.dm-popup-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 3px 0;
}

.dm-popup-icon {
    width: 16px;
    text-align: center;
    color: rgba(255, 255, 255, 0.35);
    font-size: 0.7rem;
    flex-shrink: 0;
}

.dm-popup-field {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.72rem;
    width: 40px;
    flex-shrink: 0;
}

.dm-popup-val {
    font-weight: 500;
    font-size: 0.78rem;
    color: #f0f0f0;
    margin-left: auto;
    text-align: right;
}

.dm-popup-val small {
    font-weight: 400;
    font-size: 0.65rem;
    opacity: 0.6;
}


/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .dm-sidebar {
        width: 320px;
    }

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

@media (max-width: 768px) {
    .dm-tab-bar {
        width: 40px;
    }

    .dm-sidebar {
        width: 280px;
    }

    .dm-tab-btn {
        width: 34px;
        height: 34px;
        font-size: 0.85rem;
    }
}

/* ============================================================
   FIXED MODE — deployment-site dashboard overlay panel
   ============================================================ */
.dm-side-panel {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 580px;
    max-width: 94%;
    background: var(--ls-bg-panel, #1a1a1a);
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: -8px 0 24px rgba(0, 0, 0, 0.35);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.dm-side-panel.open {
    transform: translateX(0);
}
.dm-side-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    flex: 0 0 auto;
}
.dm-side-panel-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--ls-text, #fff);
}
.dm-side-panel-close {
    background: none;
    border: none;
    color: var(--ls-text-muted, #a0a0a0);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 4px;
}
.dm-side-panel-close:hover {
    color: var(--ls-text, #fff);
}
.dm-side-panel-body {
    padding: 14px 16px;
    overflow-y: auto;
    flex: 1 1 auto;
}

/* Header stat cards: 2-up grid wrapping the app's existing .dm-stat-card */
.dm-fixed-statgrid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

/* Small carrier colour dot (carrier checks, scope pills, alerts) */
.dm-fixed-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex: 0 0 auto;
}

/* Day x hour throughput heatmap (CSS grid) */
.dm-hm {
    display: grid;
    grid-template-columns: 30px repeat(24, 1fr);
    gap: 2px;
    margin-top: 6px;
}
.dm-hm-hhdr {
    font-size: 0.6rem;
    color: var(--ls-text-muted, #a0a0a0);
    text-align: center;
}
.dm-hm-dhdr {
    font-size: 0.65rem;
    color: var(--ls-text-muted, #a0a0a0);
    display: flex;
    align-items: center;
}
.dm-hm-cell {
    aspect-ratio: 1 / 1;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.04);
}
.dm-hm-empty {
    background: rgba(255, 255, 255, 0.03);
}
.dm-fixed-note {
    font-size: 0.72rem;
    color: var(--ls-text-muted, #a0a0a0);
    margin-top: 10px;
    font-style: italic;
}
/* One-line plain-English explainer under a section title */
.dm-fixed-desc {
    font-size: 0.74rem;
    color: var(--ls-text-muted, #a0a0a0);
    margin: -4px 0 10px;
    line-height: 1.35;
}
/* Info icon (Bootstrap tooltip on hover) next to a section title */
.dm-info-icon {
    color: var(--ls-text-muted, #a0a0a0);
    font-size: 0.78rem;
    cursor: help;
    opacity: 0.55;
}
.dm-info-icon:hover,
.dm-info-icon:focus {
    opacity: 1;
    color: var(--ls-accent, #00bc8c);
    outline: none;
}
/* Coverage & alerts list */
.dm-alerts {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.dm-alert-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-radius: 6px;
    background: var(--ls-bg-card, #1e1e1e);
    font-size: 0.8rem;
}
.dm-alert-sev {
    width: 8px;
    height: 8px;
    border-radius: 2px;
    flex: 0 0 auto;
}
.dm-alert-date {
    font-variant-numeric: tabular-nums;
    color: var(--ls-text-muted, #a0a0a0);
    width: 44px;
}
.dm-alert-carrier {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--ls-text, #fff);
    flex: 1;
}
.dm-alert-pct {
    font-weight: 600;
    color: var(--ls-text, #fff);
}

/* Fixed-mode left-panel filter visibility (toggled by .dm-mode-fixed on the panel content) */
.js-fixed-only {
    display: none;
}
.dm-panel-content.dm-mode-fixed .js-fixed-only {
    display: block;
}
.dm-panel-content.dm-mode-fixed > .dm-section:not(.js-fixed-keep):not(.js-fixed-only) {
    display: none;
}

/* Fixed-mode Sites / Carriers checkbox groups */
.dm-fixed-filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.dm-fixed-check {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    color: var(--ls-text, #fff);
    cursor: pointer;
}
.dm-fixed-check input {
    accent-color: var(--ls-accent, #00bc8c);
    cursor: pointer;
}
.dm-fixed-loading,
.dm-fixed-error {
    color: var(--ls-text-muted, #a0a0a0);
    padding: 20px 0;
    text-align: center;
}

/* Panel header actions + expand-to-center toggle */
.dm-side-panel-actions {
    display: flex;
    align-items: center;
    gap: 2px;
}
.dm-side-panel-btn {
    background: none;
    border: none;
    color: var(--ls-text-muted, #a0a0a0);
    font-size: 0.9rem;
    line-height: 1;
    cursor: pointer;
    padding: 5px 7px;
    border-radius: 6px;
}
.dm-side-panel-btn:hover {
    color: var(--ls-text, #fff);
    background: rgba(255, 255, 255, 0.06);
}

/* Centered-modal (expanded) state + blurred backdrop */
.dm-side-panel-backdrop {
    position: absolute;
    inset: 0;
    z-index: 1190;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}
.dm-side-panel-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}
.dm-side-panel.expanded {
    top: 50%;
    left: 50%;
    right: auto;
    bottom: auto;
    width: min(1080px, 92%);
    height: min(880px, 90%);
    transform: translate(-50%, -50%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.55);
    transition: transform 0.25s ease, width 0.25s ease, height 0.25s ease;
}
/* Use the extra room when expanded: 4-up header stats. */
.dm-side-panel.expanded .dm-fixed-statgrid {
    grid-template-columns: repeat(4, 1fr);
}

/* Coverage alerts banner (loudest element, top of panel) */
.dm-alert-banner {
    border-radius: 10px;
    padding: 12px 14px;
    margin-bottom: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border: 1px solid transparent;
}
.dm-alert-banner-head {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.dm-alert-banner-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    line-height: 1.3;
}
.dm-alert-banner-text b {
    color: var(--ls-text, #fff);
    font-size: 0.92rem;
}
.dm-alert-banner-text span {
    color: var(--ls-text-muted, #a0a0a0);
    font-size: 0.78rem;
}
.dm-alert-ok {
    flex-direction: row;
    align-items: center;
    background: rgba(0, 188, 140, 0.08);
    border-color: rgba(0, 188, 140, 0.3);
}
.dm-alert-ok > i {
    color: #00bc8c;
    font-size: 1.1rem;
}
.dm-alert-warn {
    background: rgba(255, 176, 32, 0.1);
    border-color: rgba(255, 176, 32, 0.45);
}
.dm-alert-severe {
    background: rgba(255, 68, 68, 0.12);
    border-color: rgba(255, 68, 68, 0.55);
}
.dm-alert-pulse {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex: 0 0 auto;
    margin-top: 3px;
    background: #ffb020;
}
.dm-alert-severe .dm-alert-pulse {
    background: #ff4444;
}
.dm-alert-warn .dm-alert-pulse,
.dm-alert-severe .dm-alert-pulse {
    animation: dmAlertPulse 1.6s ease-out infinite;
}
@keyframes dmAlertPulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 68, 68, 0.5); }
    70% { box-shadow: 0 0 0 9px rgba(255, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 68, 68, 0); }
}
@media (prefers-reduced-motion: reduce) {
    .dm-alert-pulse { animation: none; }
}

/* Carrier-first collapsible cards */
.dm-carrier-card {
    margin-bottom: 8px;
    padding: 0;
    overflow: hidden;
}
.dm-carrier-head {
    width: 100%;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    text-align: left;
    color: var(--ls-text, #fff);
}
.dm-carrier-head:hover {
    background: rgba(255, 255, 255, 0.03);
}
.dm-carrier-name {
    font-weight: 600;
    font-size: 0.85rem;
}
.dm-carrier-badge {
    font-size: 0.68rem;
    color: var(--ls-text-muted, #a0a0a0);
    background: rgba(255, 255, 255, 0.06);
    padding: 1px 6px;
    border-radius: 8px;
}
.dm-carrier-chev {
    color: var(--ls-text-muted, #a0a0a0);
    font-size: 0.75rem;
    transition: transform 0.2s ease;
    flex: 0 0 auto;
}
.dm-carrier-card.open .dm-carrier-chev {
    transform: rotate(180deg);
}
.dm-carrier-detail {
    max-height: 0;
    overflow: hidden;
    padding: 0 12px;
    transition: max-height 0.25s ease;
}
.dm-carrier-card.open .dm-carrier-detail {
    max-height: 1400px;
    padding-bottom: 10px;
}
.dm-carrier-agg {
    margin-bottom: 8px;
}
.dm-fixed-devblock {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 8px;
    margin-top: 8px;
}
.dm-fixed-devname2 {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ls-text, #fff);
    margin-bottom: 4px;
}

/* Carrier viz row: uptime ring + speed sparkline + signal-quality bar */
.dm-carrier-viz {
    display: flex;
    gap: 10px;
    padding: 4px 12px 12px;
    align-items: center;
}
.dm-cv-item {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
}
.dm-cv-chart {
    width: 100%;
}
.dm-cv-cap {
    font-size: 0.62rem;
    color: var(--ls-text-muted, #a0a0a0);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}
.dm-cv-na {
    color: var(--ls-text-muted, #a0a0a0);
    font-size: 0.8rem;
    padding: 22px 0;
}
.dm-cv-qual {
    align-self: stretch;
    justify-content: center;
}
.dm-qual-bar {
    display: flex;
    width: 100%;
    height: 14px;
    border-radius: 3px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.06);
}
.dm-qual-bar span {
    display: block;
    height: 100%;
}

/* Outage-timeline (ApexCharts rangeBar) custom tooltip */
.dm-tl-tip {
    padding: 6px 9px;
    font-size: 0.72rem;
    line-height: 1.35;
}
.dm-tl-tip b {
    color: #fff;
}
.dm-tl-tip-cta {
    color: var(--ls-accent, #00bc8c);
    margin-top: 3px;
    font-size: 0.65rem;
}

/* Signal-quality legend (one key for all carrier quality bars) */
.dm-qual-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.62rem;
    color: var(--ls-text-muted, #a0a0a0);
    margin: -2px 0 10px;
}
.dm-qual-legend span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.dm-qual-legend i {
    width: 9px;
    height: 9px;
    border-radius: 2px;
    display: inline-block;
}

/* Carrier detail: stat tiles + device pills (replaces the flat stat list) */
.dm-detail-tiles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 5px;
    padding: 0;
}
.dm-detail-tile {
    background: rgba(255, 255, 255, 0.04);
    border-radius: 5px;
    padding: 5px 5px;
    text-align: center;
}
.dm-detail-val {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ls-text, #fff);
    font-variant-numeric: tabular-nums;
}
.dm-detail-sub {
    font-size: 0.58rem;
    color: var(--ls-text-muted, #a0a0a0);
    font-weight: 400;
}
.dm-detail-lbl {
    font-size: 0.55rem;
    color: var(--ls-text-muted, #a0a0a0);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-top: 1px;
}

/* Keep units cased as written (Mbps, not MBPS) inside otherwise-uppercased stat labels. */
.dm-stat-label .dm-unit,
.dm-detail-lbl .dm-unit { text-transform: none; }
.dm-dev-q {
    margin-bottom: 8px;
}
.dm-dev-q-cap {
    font-size: 0.62rem;
    color: var(--ls-text-muted, #a0a0a0);
    margin-top: 4px;
}

/* Option 1: scope pills (All + phones) re-scope a single tile grid; the row scrolls for many phones */
.dm-scope-pillwrap {
    position: relative;
}
.dm-scope-pills {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 2px 0 8px;
    scrollbar-width: none;
}
.dm-scope-pills::-webkit-scrollbar {
    display: none;
}
.dm-scope-pill {
    flex: 0 0 auto;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--ls-text, #fff);
    border-radius: 14px;
    padding: 4px 11px;
    font-size: 0.74rem;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
}
.dm-scope-pill:hover {
    background: rgba(255, 255, 255, 0.1);
}
.dm-scope-pill.active {
    background: var(--ls-accent, #00bc8c);
    border-color: var(--ls-accent, #00bc8c);
    color: #06281f;
    font-weight: 600;
}
.dm-scope-fade {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 8px;
    width: 36px;
    background: linear-gradient(to left, var(--ls-bg-card, #1e1e1e), transparent);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
}
.dm-scope-pillwrap.scrollable .dm-scope-fade {
    opacity: 1;
}
.dm-scope-grid {
    display: none;
}
.dm-scope-grid.show {
    display: block;
}
.dm-scope-grid .dm-dev-q {
    margin-bottom: 8px;
}

/* Admin Tools: device / site / assignment management lists + inline forms */
.dm-adm-list {
    margin: 4px 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 46vh;
    overflow-y: auto;
    padding-right: 2px;
}
.dm-adm-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 4px;
}
.dm-adm-row-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.dm-adm-row-main b {
    color: var(--ls-text, #fff);
    font-size: 0.8rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.dm-adm-sub {
    font-size: 0.68rem;
    color: var(--ls-text-muted, #a0a0a0);
}
.dm-adm-row-actions {
    display: flex;
    gap: 4px;
    flex: 0 0 auto;
}
.dm-adm-icon {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--ls-text-muted, #a0a0a0);
    border-radius: 4px;
    width: 26px;
    height: 26px;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.dm-adm-icon:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--ls-text, #fff);
}
.dm-adm-danger:hover {
    background: rgba(192, 57, 43, 0.2);
    border-color: #c0392b;
    color: #ff6b6b;
}
.dm-adm-form {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.dm-adm-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.dm-adm-grid > * {
    flex: 1;
    min-width: 110px;
}
.dm-adm-actions {
    display: flex;
    gap: 6px;
    margin-top: 6px;
}

/* Deployment-management panel: sub-tabs, add/edit form card, search */
.dm-adm-tabs {
    display: flex;
    gap: 2px;
    margin-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.dm-adm-tab {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--ls-text-muted, #a0a0a0);
    padding: 8px 14px;
    font-size: 0.85rem;
    cursor: pointer;
    margin-bottom: -1px;
    transition: color 0.15s ease, border-color 0.15s ease;
}
.dm-adm-tab:hover {
    color: var(--ls-text, #fff);
}
.dm-adm-tab.active {
    color: var(--ls-text, #fff);
    border-bottom-color: var(--ls-accent, #00bc8c);
}
.dm-adm-formcard {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 10px;
}
.dm-adm-formtitle {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ls-text, #fff);
    margin-bottom: 8px;
}
.dm-adm-hint {
    font-weight: 400;
    font-size: 0.72rem;
    color: var(--ls-text-muted, #a0a0a0);
    margin-left: 4px;
}
.dm-adm-search {
    margin-bottom: 8px;
    width: 100%;
}

/* Fixed-site map marker: the hub-and-spoke SVG glyph floating over the point (no pin).
   Override Leaflet's default .leaflet-div-icon white box/border so only the glyph shows.
   A white halo traces the glyph outline so it stays legible on light, dark and satellite
   basemaps; a soft drop-shadow lifts it off the map. Hover scales up. */
.dm-site-marker {
    background: transparent;
    border: none;
}
.dm-site-marker svg {
    display: block;
    filter: drop-shadow(0 0 1.5px #fff) drop-shadow(0 0 1.5px #fff) drop-shadow(0 1px 2px rgba(0, 0, 0, 0.5));
    transition: transform 0.15s ease;
    transform-origin: 50% 50%;   /* centred glyph pivots about the point */
}
.dm-site-marker:hover svg {
    transform: scale(1.15);
}

.dm-chart-hint {
    color: var(--dm-text-muted, #888);
    font-size: 0.72rem;
    font-weight: 400;
}