:root {
    --bg-primary: #070b14;
    --bg-secondary: #0f1729;
    --bg-card: #162033;
    --bg-card-hover: #1c2a42;
    --border: #233049;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-radar: #00e5a0;
    --accent-blue: #3b82f6;
    --accent-amber: #f59e0b;
    --accent-red: #ef4444;
    --accent-purple: #a855f7;
    --accent-cyan: #06b6d4;
    --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);
    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 {
    font-size: 1.6rem;
    color: var(--accent-radar);
}

.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);
}

.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;
}

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

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    transition: border-color 0.2s;
}

.stat-card:hover { border-color: var(--accent-radar); }

.stat-card__label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.stat-card__value {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
}

.stat-card__value--green { color: var(--accent-radar); }

.dashboard__main {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1rem;
    min-height: 420px;
}

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.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: 400px; }

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

@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;
}

.dashboard__bottom {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    min-height: 300px;
}

.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    padding: 0.75rem;
}

.chart-container {
    position: relative;
    width: 100%;
    min-height: 200px;
}

.packet-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
    font-family: var(--font-mono);
}

.packet-table thead th {
    position: sticky;
    top: 0;
    background: var(--bg-secondary);
    padding: 0.5rem 0.6rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--border);
}

.packet-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}

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

.packet-table td {
    padding: 0.4rem 0.6rem;
    white-space: nowrap;
    color: var(--text-secondary);
}

.protocol-meshtastic { color: var(--accent-blue); }
.protocol-meshcore { color: var(--accent-purple); }

@keyframes packetPulse {
    0%   { background: rgba(0, 229, 160, 0.25); }
    100% { background: transparent; }
}

.packet-row--new {
    animation: packetPulse 1.5s ease-out;
}

.packet-count-live {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: var(--accent-radar);
    color: #070b14;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    font-weight: 700;
}

.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);
}

.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-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;
}

.top-bar__user {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.top-bar__btn {
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}

.top-bar__btn:hover {
    border-color: var(--accent-radar);
    color: var(--text-primary);
}

.top-bar__btn--admin {
    border-color: var(--accent-amber);
    color: var(--accent-amber);
}

.top-bar__btn--logout {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
}

.modal__card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.modal__header h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-radar);
}

.modal__close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

.modal__close:hover { color: var(--text-primary); }

.modal__body {
    padding: 1.25rem;
    overflow-y: auto;
    flex: 1;
}

.modal__actions {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.modal__input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
}

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

.new-key-box {
    background: rgba(0, 229, 160, 0.06);
    border: 1px solid rgba(0, 229, 160, 0.25);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.new-key-value {
    display: block;
    margin-top: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-radar);
    word-break: break-all;
    user-select: all;
}

.new-key-hint {
    margin-top: 0.4rem;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.revoke-btn {
    padding: 0.15rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 600;
    border: 1px solid var(--accent-red);
    background: none;
    color: var(--accent-red);
    border-radius: 4px;
    cursor: pointer;
}

.revoke-btn:hover {
    background: rgba(239, 68, 68, 0.15);
}

@media (max-width: 1024px) {
    .dashboard__stats { grid-template-columns: repeat(2, 1fr); }
    .dashboard__main { grid-template-columns: 1fr; }
    .dashboard__bottom { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .dashboard__stats { grid-template-columns: 1fr; }
    .top-bar { flex-direction: column; gap: 0.5rem; }
}