/* ---- KPI Strip ---- */
.top-bar__kpi {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.kpi-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.1rem;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    min-width: 90px;
    transition: border-color 0.2s;
}

.kpi-item:hover {
    border-color: var(--accent-radar);
}

.kpi-item__label {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    white-space: nowrap;
}

.kpi-item__value {
    font-size: 1rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
}

.kpi-item__value--green { color: var(--accent-radar); }

.kpi-item__spark {
    width: 60px;
    height: 20px;
}

.kpi-item__delta {
    font-size: 0.55rem;
    font-family: var(--font-mono);
    font-weight: 600;
}

.kpi-item__delta--up { color: var(--accent-green); }
.kpi-item__delta--down { color: var(--accent-red); }
.kpi-item__delta--neutral { color: var(--text-muted); }

.kpi-item--gated {
    text-decoration: none;
    position: relative;
    cursor: pointer;
}

.kpi-item--gated:hover { border-color: var(--accent-radar); }

.kpi-item__value--blur {
    filter: blur(5px);
    user-select: none;
    transition: filter 0.2s;
}

.kpi-item__lock {
    display: none;
    position: absolute;
    inset: 0;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--accent-radar);
    background: rgba(7, 11, 20, 0.7);
    border-radius: 6px;
    letter-spacing: 0.04em;
}

.kpi-item--gated:hover .kpi-item__lock { display: flex; }
.kpi-item--gated:hover .kpi-item__value--blur { filter: blur(8px); }

/* ---- Data Table ---- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
}

.data-table thead {
    position: sticky;
    top: 0;
    z-index: 2;
}

.data-table th {
    padding: 0.5rem 0.6rem;
    text-align: left;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
}

.data-table th:hover {
    color: var(--accent-radar);
}

.data-table th .sort-arrow {
    margin-left: 0.25rem;
    font-size: 0.6rem;
}

.data-table td {
    padding: 0.45rem 0.6rem;
    border-bottom: 1px solid rgba(35, 48, 73, 0.5);
    color: var(--text-secondary);
    white-space: nowrap;
}

.data-table tr {
    transition: background 0.15s;
    cursor: pointer;
}

.data-table tr:hover {
    background: var(--bg-card-hover);
}

.data-table tr.row--selected {
    background: rgba(0, 229, 160, 0.08);
    border-left: 2px solid var(--accent-radar);
}

/* ---- Badges ---- */
.badge-proto {
    padding: 0.15rem 0.45rem;
    border-radius: 3px;
    font-size: 0.65rem;
    font-weight: 600;
    font-family: var(--font-mono);
    text-transform: lowercase;
}

.badge-proto--meshtastic {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.badge-proto--meshcore {
    background: rgba(168, 85, 247, 0.15);
    color: var(--accent-purple);
}

.badge-role {
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-role--router {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-amber);
}

.badge-role--client {
    background: rgba(100, 116, 139, 0.15);
    color: var(--text-muted);
}

.badge-role--repeater {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-cyan);
}

.badge-role--tracker,
.badge-role--sensor {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-green);
}

/* ---- Filter Bar ---- */
.filter-bar {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.filter-input {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
    font-family: var(--font-sans);
    outline: none;
    width: 200px;
}

.filter-input:focus {
    border-color: var(--accent-radar);
}

.filter-select {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.3rem 0.5rem;
    font-size: 0.75rem;
    font-family: var(--font-sans);
    outline: none;
}

/* ---- Detail Panel ---- */
.detail-panel {
    position: fixed;
    top: 0;
    right: -420px;
    width: 400px;
    height: 100vh;
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.4);
    z-index: 1100;
    overflow-y: auto;
    transition: right 0.3s ease;
    padding: 1rem;
}

.detail-panel--open {
    right: 0;
}

.detail-panel__close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
}

.detail-panel__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    padding-right: 2rem;
}

.detail-section {
    margin-bottom: 1rem;
}

.detail-section__heading {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--border);
}

.detail-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.2rem 0.75rem;
    font-size: 0.75rem;
}

.detail-grid__label {
    color: var(--text-muted);
}

.detail-grid__value {
    color: var(--text-primary);
    font-family: var(--font-mono);
}

/* ---- Analytics Panels ---- */
.analytics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.analytics-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    transition: border-color 0.2s;
}

.analytics-panel:hover {
    border-color: rgba(0, 229, 160, 0.3);
}

.analytics-panel--wide {
    grid-column: 1 / -1;
}

.analytics-panel__title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.analytics-panel__chart {
    width: 100%;
    min-height: 200px;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem 1rem;
}

.stats-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    padding: 0.15rem 0;
}

.stats-row__label { color: var(--text-muted); }

.stats-row__value {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--accent-cyan);
}

/* ---- Layer Toggles ---- */
.layer-toggles {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.control-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.control-toggle input[type="checkbox"] {
    accent-color: var(--accent-radar);
}

/* ---- Map layout ---- */
.view-map__layout {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 1rem;
    min-height: calc(100vh - 140px);
}

.map-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: 0;
}

.panel--controls {
    flex-shrink: 0;
}

.panel__header--toggle {
    cursor: pointer;
    user-select: none;
    transition: color 0.15s;
}

.panel__header--toggle:hover {
    color: var(--accent-radar);
}

.panel__chevron {
    transition: transform 0.25s ease;
}

.panel--collapsed .panel__chevron {
    transform: rotate(-90deg);
}

.panel--collapsed > .panel__body {
    display: none;
}

.panel--recent-packets {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.panel--recent-packets .panel__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.recent-packets__count {
    background: var(--accent-radar);
    color: var(--bg-primary);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    min-width: 1.4rem;
    text-align: center;
}

.recent-packets__body {
    position: relative;
    flex: 1;
    overflow-y: auto;
    padding: 0 !important;
}


@keyframes rpFlash {
    0% { background: rgba(0, 229, 160, 0.15); }
    100% { background: transparent; }
}

.rssi-good { color: var(--accent-green); }
.rssi-mid  { color: var(--accent-amber); }
.rssi-bad  { color: var(--accent-red); }

/* ---- Activity stream (Map sidebar) ---- */
.activity-stream {
    display: flex;
    flex-direction: column;
}

.activity-card {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid rgba(35, 48, 73, 0.5);
    cursor: pointer;
    transition: background 0.15s, transform 0.15s, border-color 0.15s;
}

.activity-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-1px);
    border-left: 2px solid var(--accent-radar);
}

/* A2: Staggered entrance */
@keyframes cardSlideIn {
    from { opacity: 0; transform: translateX(12px); }
    to   { opacity: 1; transform: translateX(0); }
}

.activity-card--stagger {
    opacity: 0;
    animation: cardSlideIn 0.3s ease-out forwards;
}

.activity-card--new {
    animation: rpFlash 0.6s ease-out;
}

.activity-card__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.35rem;
}

.activity-card__topic {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}

.activity-card__mid {
    margin-bottom: 0.35rem;
}

.activity-card__badges {
    display: flex;
    gap: 0.25rem;
}

.activity-card__badges .pkt-badge {
    font-size: 0.52rem;
    padding: 0.1rem 0.35rem;
}

.activity-card__bottom {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.activity-card__time {
    font-size: 0.62rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.activity-card__observer {
    font-size: 0.62rem;
    color: var(--accent-radar);
    font-family: var(--font-mono);
    font-weight: 500;
}

/* ---- Live dot (activity header) ---- */
.activity-label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.live-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent-radar);
    animation: livePulse 2s ease-in-out infinite;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 229, 160, 0.5); }
    50%      { opacity: 0.5; box-shadow: 0 0 6px 2px rgba(0, 229, 160, 0.3); }
}

/* ---- Empty state (scanning) ---- */
.activity-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    gap: 0.75rem;
    color: var(--text-muted);
}

.activity-empty__sweep {
    animation: radarSpin 3s linear infinite;
}

.activity-empty__text {
    font-size: 0.72rem;
    font-family: var(--font-mono);
    letter-spacing: 0.04em;
}

/* ---- Map popup card ---- */
.popup-card {
    padding: 0.65rem 0.75rem;
    min-width: 200px;
    max-width: 280px;
}

.popup-card__name {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.popup-card__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.72rem;
    padding: 0.15rem 0;
    color: var(--text-secondary);
}

.popup-card__label {
    color: var(--text-muted);
}

.popup-card__value {
    font-family: var(--font-mono);
    font-weight: 500;
}

.popup-card__badges {
    display: flex;
    gap: 0.25rem;
    margin: 0.3rem 0;
}

.popup-card__badges .pkt-badge {
    font-size: 0.55rem;
    padding: 0.1rem 0.4rem;
}

.popup-card__link {
    display: inline-block;
    margin-top: 0.4rem;
    font-size: 0.65rem;
    color: var(--accent-radar);
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
}

.popup-card__link:hover {
    text-decoration: underline;
}

.badge-pill {
    font-size: 0.6rem;
    font-weight: 600;
    padding: 0.1rem 0.45rem;
    border-radius: 10px;
}

.badge-pill--online {
    background: rgba(0, 229, 160, 0.15);
    color: var(--accent-radar);
}

.badge-pill--offline {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

.badge-pill--role {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-amber);
    text-transform: uppercase;
    font-family: var(--font-mono);
    font-size: 0.52rem;
    letter-spacing: 0.03em;
}

/* ---- Signal micro bar ---- */
.sig-micro {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    flex-shrink: 0;
    margin-left: 0.5rem;
}

.sig-micro__val {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
}

.sig-micro__icon {
    vertical-align: middle;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .view-map__layout { grid-template-columns: 1fr; }
    .analytics-grid { grid-template-columns: 1fr; }
    .top-bar__kpi { display: none; }
    .panel--recent-packets { max-height: 250px; }
}

/* ---- Fleet Cards ---- */
.fleet-section__label {
    padding: 0.4rem 1rem;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-radar);
    background: rgba(0, 229, 160, 0.06);
    border-bottom: 1px solid var(--border);
}

.fleet-section__label--community {
    color: var(--text-muted);
    background: rgba(100, 116, 139, 0.06);
    margin-top: 0.25rem;
}

.fleet-empty {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.device-card { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); transition: background 0.15s; }
.device-card--owned { cursor: pointer; border-left: 2px solid var(--accent-radar); }
.device-card--community { opacity: 0.7; border-left: 2px solid transparent; }
.device-card:hover { background: var(--bg-card-hover); }
.device-card__header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.3rem; }
.device-card__name { font-weight: 600; font-size: 0.9rem; }
.device-card__status { font-size: 0.7rem; font-weight: 600; padding: 0.1rem 0.5rem; border-radius: 4px; }
.device-card__status--online { background: rgba(0, 229, 160, 0.15); color: var(--accent-radar); }
.device-card__status--offline { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }
.device-card__meta { display: flex; gap: 1rem; font-size: 0.75rem; font-family: var(--font-mono); color: var(--text-muted); flex-wrap: wrap; }
.device-card__meta .meta--id { color: var(--text-muted); }
.device-card__meta .meta--version { color: var(--accent-radar); }
.device-card__meta .meta--hw { color: var(--accent-blue); }
.device-card__meta .meta--time { color: var(--text-muted); }
.device-card__meta .meta--location { color: var(--accent-amber); }
.device-card--stale { opacity: 0.65; border-left-color: rgba(255, 193, 7, 0.5); }
.device-card__stale-notice {
    margin-top: 0.5rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.72rem;
    line-height: 1.4;
    color: var(--text-muted);
    background: rgba(255, 193, 7, 0.08);
    border: 1px solid rgba(255, 193, 7, 0.25);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}
.device-card__archive-btn {
    align-self: flex-start;
    padding: 0.2rem 0.6rem;
    font-size: 0.68rem;
    font-weight: 600;
    font-family: var(--font-mono);
    color: rgba(255, 193, 7, 0.9);
    background: rgba(255, 193, 7, 0.12);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s;
}
.device-card__archive-btn:hover { background: rgba(255, 193, 7, 0.22); }
.device-card__commands { margin-top: 0.6rem; padding-top: 0.6rem; border-top: 1px solid var(--border); }
.device-card__commands.hidden { display: none; }

.cmd-actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.cmd-btn { padding: 0.25rem 0.6rem; font-size: 0.7rem; font-weight: 600; font-family: var(--font-mono); border: 1px solid var(--accent-cyan); background: rgba(6, 182, 212, 0.08); color: var(--accent-cyan); border-radius: 4px; cursor: pointer; transition: background 0.15s; }
.cmd-btn:hover { background: rgba(6, 182, 212, 0.2); }
.cmd-btn--danger { border-color: var(--accent-red); color: var(--accent-red); background: rgba(239, 68, 68, 0.08); }
.cmd-btn--danger:hover { background: rgba(239, 68, 68, 0.2); }
.cmd-btn--share { border-color: var(--accent-cyan, #06b6d4); color: var(--accent-cyan, #06b6d4); background: rgba(6, 182, 212, 0.08); }
.cmd-btn--share:hover { background: rgba(6, 182, 212, 0.2); }
.cmd-btn--update { border-color: var(--accent-amber); color: var(--accent-amber); background: rgba(245, 158, 11, 0.08); }
.cmd-btn--update:hover { background: rgba(245, 158, 11, 0.2); }
.cmd-result { margin-top: 0.5rem; padding: 0.5rem 0.6rem; font-size: 0.72rem; font-family: var(--font-mono); line-height: 1.5; border-radius: 4px; white-space: pre-wrap; word-break: break-word; }
.cmd-result:empty { display: none; }
.cmd-result--pending { color: var(--accent-amber); background: rgba(245, 158, 11, 0.06); }
.cmd-result--success { color: var(--accent-radar); background: rgba(0, 229, 160, 0.06); }
.cmd-result--error { color: var(--accent-red); background: rgba(239, 68, 68, 0.06); }
.cmd-rtt { font-family: var(--font-mono); font-size: 0.75rem; font-weight: 700; color: var(--accent-cyan); background: rgba(6, 182, 212, 0.12); padding: 0.1rem 0.45rem; border-radius: 4px; margin-left: 0.4rem; }
.cmd-key { color: var(--text-muted); }
.cmd-log-block { max-height: 300px; overflow-y: auto; padding: 0.4rem; margin: 0.25rem 0; background: var(--bg-secondary); border-radius: 4px; font-size: 0.68rem; line-height: 1.6; }

/* ---- Map packet detail overlay (inside Activity panel) ---- */
.map-pkt-overlay {
    position: absolute;
    inset: 0;
    z-index: 800;
    overflow-y: auto;
    padding: 0.4rem;
    background: var(--bg-card);
    border-radius: 0 0 var(--radius) var(--radius);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    pointer-events: none;
}

.map-pkt-overlay--open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.map-pkt-overlay__close {
    position: absolute;
    top: 0.4rem;
    right: 0.6rem;
    z-index: 2;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
    line-height: 1;
}

.map-pkt-overlay__close:hover {
    color: var(--accent-radar);
    background: rgba(0, 229, 160, 0.1);
}

.pkt-map-notice {
    padding: 0.5rem 0.75rem;
    margin: 0.6rem 0.6rem 0;
    font-size: 0.72rem;
    color: var(--text-muted);
    background: rgba(255, 193, 7, 0.08);
    border: 1px solid rgba(255, 193, 7, 0.25);
    border-radius: 4px;
    line-height: 1.4;
}

/* ── Login gate overlay ───────────────────────────── */

.login-gate {
    position: fixed;
    inset: 0;
    z-index: 90;
    background: rgba(7, 11, 20, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: gateIn 0.3s ease-out;
}

@keyframes gateIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.login-gate__card {
    text-align: center;
    max-width: 400px;
    padding: 2.5rem 2rem;
    background: var(--bg-card, #162033);
    border: 1px solid var(--border-subtle, #233049);
    border-radius: 12px;
    animation: gateCardIn 0.35s ease-out;
}

@keyframes gateCardIn {
    from { opacity: 0; transform: translateY(16px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.login-gate__icon {
    margin-bottom: 1.25rem;
}

.login-gate__title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary, #e2e8f0);
}

.login-gate__text {
    color: var(--text-secondary, #94a3b8);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.login-gate__actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.login-gate__btn {
    padding: 0.65rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}

.login-gate__btn--primary {
    background: var(--accent-radar, #00e5a0);
    color: #070b14;
}

.login-gate__btn--primary:hover {
    opacity: 0.85;
}

.login-gate__btn--outline {
    background: transparent;
    color: var(--accent-radar, #00e5a0);
    border: 1px solid var(--accent-radar, #00e5a0);
}

.login-gate__btn--outline:hover {
    background: rgba(0, 229, 160, 0.1);
}

/* ── Skeleton rows for gated tabs ────────────────── */

.skel-gate-rows {
    padding: 0.5rem 0;
}

.skel-gate-row {
    height: 38px;
    margin-bottom: 2px;
    background: linear-gradient(90deg, var(--bg-secondary, #0f1729) 25%, var(--bg-card, #162033) 50%, var(--bg-secondary, #0f1729) 75%);
    background-size: 200px 100%;
    animation: skeletonShimmer 1.5s ease-in-out infinite;
    border-radius: 4px;
    opacity: 0.5;
}

@keyframes skeletonShimmer {
    0%   { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

@media (max-width: 640px) {
    .tab-bar { overflow-x: auto; }
    .tab-btn { padding: 0.5rem 0.8rem; font-size: 0.7rem; }

    .login-gate__card { margin: 1rem; padding: 2rem 1.25rem; }
}

/* ── Node Grid ────────────────────────────────────── */

.node-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 0.6rem;
    padding: 0.5rem 0;
}

.node-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--border);
    border-radius: 6px;
    padding: 0.65rem 0.8rem;
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}

.node-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    background: var(--bg-card-hover);
}

.node-card--meshtastic { border-left-color: var(--accent-blue); }
.node-card--meshcore { border-left-color: var(--accent-purple, #a855f7); }

.node-card__top {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.25rem;
}

.node-card__role-icon {
    flex-shrink: 0;
    color: var(--accent-amber);
    line-height: 0;
}

.node-card__name {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}

.node-card__name--mono {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
}

.node-card__proto {
    flex-shrink: 0;
}

.node-card__hw {
    font-size: 0.68rem;
    color: var(--accent-blue);
    font-family: var(--font-mono);
    margin-bottom: 0.35rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-card__signal {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.3rem;
    font-size: 0.72rem;
    font-family: var(--font-mono);
}

.node-card__snr {
    color: var(--text-muted);
}

.node-card__freshness {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.68rem;
    color: var(--text-muted);
}

.fresh-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.fresh-dot--active { background: var(--accent-radar); box-shadow: 0 0 4px var(--accent-radar); }
.fresh-dot--recent { background: var(--accent-amber); }
.fresh-dot--stale { background: var(--accent-red); }
.fresh-dot--old { background: var(--text-muted); opacity: 0.5; }

.node-card__bottom {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.68rem;
    color: var(--text-muted);
}

.node-card__location {
    color: var(--accent-amber);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-card__device {
    margin-left: auto;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 45%;
    text-align: right;
}

.node-grid__toolbar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.25rem;
}

.node-grid__count {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-left: auto;
}

.node-grid__load-more {
    grid-column: 1 / -1;
    padding: 0.6rem;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-radar);
    background: rgba(0, 229, 160, 0.06);
    border: 1px dashed rgba(0, 229, 160, 0.3);
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s;
}

.node-grid__load-more:hover {
    background: rgba(0, 229, 160, 0.12);
}

@media (max-width: 700px) {
    .node-grid { grid-template-columns: 1fr; }
}