:root {
    --bg-primary: #070b14;
    --bg-secondary: #0f1729;
    --bg-card: #162033;
    --bg-card-hover: #1c2a42;
    --bg-glass: rgba(22, 32, 51, 0.7);
    --border: #233049;
    --border-glow: rgba(0, 229, 160, 0.2);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-radar: #00e5a0;
    --accent-green: #22c55e;
    --accent-blue: #3b82f6;
    --accent-amber: #f59e0b;
    --accent-red: #ef4444;
    --accent-purple: #a855f7;
    --accent-cyan: #06b6d4;
    --glow-green: 0 0 8px rgba(0, 229, 160, 0.3);
    --glow-cyan: 0 0 8px rgba(6, 182, 212, 0.3);
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(0, 229, 160, 0.03) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(6, 182, 212, 0.03) 0%, transparent 50%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-bar__brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.top-bar__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
}

.radar-sweep {
    animation: radarSpin 3s linear infinite;
}

@keyframes radarSpin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

.top-bar__brand h1 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--accent-radar);
}

.top-bar__tagline {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 0.25rem;
}

.top-bar__status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.ws-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    transition: background 0.3s;
}
.ws-indicator--connected {
    background: var(--accent-green);
    box-shadow: 0 0 6px var(--accent-green);
}
.ws-indicator--reconnecting {
    background: var(--accent-amber);
    box-shadow: 0 0 4px var(--accent-amber);
}
.ws-indicator--connecting {
    background: var(--accent-amber);
}
.ws-indicator--disconnected {
    background: var(--text-muted);
}

.badge {
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge--green {
    background: rgba(0, 229, 160, 0.15);
    color: var(--accent-radar);
    border: 1px solid rgba(0, 229, 160, 0.3);
}

.divider { color: var(--border); }

.dashboard {
    padding: 1rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.panel {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.panel:hover {
    border-color: var(--border-glow);
    box-shadow: var(--glow-green);
}

.panel__header {
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel__body {
    flex: 1;
    overflow: auto;
    position: relative;
}

.panel__legend {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 400;
    text-transform: none;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.legend-dot--device { background: var(--accent-radar); box-shadow: 0 0 6px var(--accent-radar); }
.legend-dot--meshtastic { background: var(--accent-blue); }
.legend-dot--meshcore { background: var(--accent-purple); }
.legend-dot--line {
    width: 14px;
    height: 2px;
    border-radius: 0;
    border-top: 2px dashed var(--text-muted);
    background: none;
    margin-left: 0.25rem;
}

#map { min-height: 520px; overflow: hidden; }

.panel--map { border: none; }
.panel--map .panel__header { border-bottom: none; }

.mesh-point-glow {
    filter: drop-shadow(0 0 6px #00e5a0) drop-shadow(0 0 12px rgba(0, 229, 160, 0.3));
}

.packet-line {
    filter: drop-shadow(0 0 4px rgba(0, 229, 160, 0.6));
}

.node-pulse {
    animation: nodePulseRing 1.5s ease-out infinite;
}

@keyframes nodePulseRing {
    0% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.5); }
    70% { box-shadow: 0 0 0 8px rgba(6, 182, 212, 0); }
    100% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0); }
}

@keyframes pulseExpand {
    0% {
        r: 10;
        opacity: 0.7;
        stroke-width: 3;
    }
    100% {
        r: 35;
        opacity: 0;
        stroke-width: 1;
    }
}

.relay-pulse-ring {
    animation: pulseExpand 1.2s ease-out forwards;
    pointer-events: none;
}

.leaflet-control-layers {
    background: var(--bg-card) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius) !important;
    color: var(--text-secondary) !important;
    font-family: var(--font-sans) !important;
    font-size: 0.75rem !important;
    padding: 0.5rem 0.75rem !important;
}

.leaflet-control-layers label {
    color: var(--text-secondary) !important;
    margin-bottom: 0.2rem;
}

.leaflet-control-layers-separator {
    border-top-color: var(--border) !important;
}


@media (max-width: 640px) {
    .top-bar { flex-direction: column; gap: 0.5rem; }
}

/* --- Control panel sidebar --- */
.control-panel {
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    overflow-y: auto;
}
.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.control-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}
.control-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;
    width: 100%;
}
.control-select:focus {
    border-color: var(--accent-radar);
}
.control-radios {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}
.control-radio {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
}
.control-radio input[type="radio"] {
    accent-color: var(--accent-radar);
    margin: 0;
}
.control-divider {
    border-top: 1px solid var(--border);
    margin: 0.25rem 0;
}
.map-summary {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}
.map-summary__title {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.1rem;
}
.map-summary__row {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
}
.map-summary__value {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--accent-cyan);
}
.search-wrapper {
    position: relative;
}
.search-results {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    min-width: 220px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    max-height: 240px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
.search-result {
    padding: 0.4rem 0.6rem;
    cursor: pointer;
    font-size: 0.72rem;
    display: flex;
    gap: 0.5rem;
    align-items: center;
    border-bottom: 1px solid var(--border);
}
.search-result:hover {
    background: var(--bg-secondary);
}
.search-result__name {
    flex: 1;
    font-weight: 500;
}
.search-result__meta {
    font-size: 0.65rem;
    opacity: 0.7;
}
.search-no-results {
    padding: 0.6rem;
    font-size: 0.72rem;
    opacity: 0.6;
    text-align: center;
}
.distance-label {
    background: rgba(0,0,0,0.75) !important;
    border: 1px solid rgba(255,255,255,0.2) !important;
    color: #fff !important;
    font-size: 11px !important;
    font-weight: 600;
    padding: 2px 6px !important;
    border-radius: 3px;
    box-shadow: none !important;
}
.distance-label::before {
    display: none !important;
}

.device-label {
    background: rgba(7, 11, 20, 0.85) !important;
    border: 1px solid var(--border) !important;
    color: var(--accent-radar) !important;
    font-size: 10px !important;
    font-weight: 600;
    font-family: var(--font-mono) !important;
    padding: 2px 6px !important;
    border-radius: 3px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4) !important;
    white-space: nowrap;
}

.device-label::before {
    border-right-color: var(--border) !important;
}

/* --- Marker cluster overrides (dark theme) --- */
.marker-cluster {
    background-clip: padding-box;
    border-radius: 20px;
}
.marker-cluster div {
    width: 30px;
    height: 30px;
    margin-left: 5px;
    margin-top: 5px;
    text-align: center;
    border-radius: 15px;
    font: 12px "Inter", sans-serif;
    font-weight: 600;
    color: #fff;
}
.marker-cluster span {
    line-height: 30px;
}
.marker-cluster-small {
    background: rgba(59, 130, 246, 0.35);
}
.marker-cluster-small div {
    background: rgba(59, 130, 246, 0.7);
}
.marker-cluster-medium {
    background: rgba(168, 85, 247, 0.35);
}
.marker-cluster-medium div {
    background: rgba(168, 85, 247, 0.7);
}
.marker-cluster-large {
    background: rgba(0, 229, 160, 0.35);
}
.marker-cluster-large div {
    background: rgba(0, 229, 160, 0.7);
}

/* Role-based pictogram marker styling */
.role-marker {
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 0 4px rgba(59, 130, 246, 0.5));
    transition: filter 0.2s;
}

.role-marker:hover {
    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.8)) drop-shadow(0 0 16px rgba(59, 130, 246, 0.3));
}

/* A8: Marker entrance animation */
@keyframes markerPop {
    0%   { transform: scale(0); opacity: 0; }
    60%  { transform: scale(1.15); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

.marker-enter {
    animation: markerPop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* A9: Gradient border on panel hover */
.panel {
    position: relative;
}

.panel::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: calc(var(--radius) + 1px);
    background: linear-gradient(135deg, rgba(0, 229, 160, 0.3), rgba(6, 182, 212, 0.3));
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.panel:hover::before {
    opacity: 1;
}

/* Leaflet popup dark theme (B1) */
.leaflet-popup-content-wrapper {
    background: var(--bg-card) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius) !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5) !important;
    font-family: var(--font-sans) !important;
    padding: 0 !important;
}

.leaflet-popup-content {
    margin: 0 !important;
    font-size: 0.78rem !important;
    line-height: 1.5 !important;
}

.leaflet-popup-tip {
    background: var(--bg-card) !important;
    border: 1px solid var(--border) !important;
    box-shadow: none !important;
}

.leaflet-popup-close-button {
    color: var(--text-muted) !important;
    font-size: 18px !important;
    top: 6px !important;
    right: 8px !important;
}

.leaflet-popup-close-button:hover {
    color: var(--accent-radar) !important;
}