:root {
  --bg:#05080c; --bg2:#0a1017; --panel:#0c141cf2; --line:#1a2a3a; --line2:#24384c; --fg:#d6e6f2; --muted:#7f97ab; --dim:#4b5f71;
  --cyan:#22d3ee; --cyan2:#0e7490; --amber:#f5b40a; --red:#ef4444; --green:#22c55e; --violet:#a78bfa; --blue:#3b82f6;
  --mono:"IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace; --sans:Inter, -apple-system, system-ui, Segoe UI, Roboto, sans-serif;
}
* { box-sizing:border-box; }
html, body { margin:0; height:100%; background:var(--bg); color:var(--fg); font:14px/1.45 var(--sans); }
body { background-image: radial-gradient(ellipse at 20% 0%, #0b1a24 0%, transparent 55%), linear-gradient(#0a1017 1px, transparent 1px), linear-gradient(90deg, #0a1017 1px, transparent 1px); background-size:auto, 32px 32px, 32px 32px; }
a { color:var(--cyan); text-decoration:none; } a:hover { text-decoration:underline; }
.mono { font-family:var(--mono); font-variant-numeric:tabular-nums; }
.muted { color:var(--muted); } .small { font-size:12px; } .hint { color:var(--muted); font-size:12px; margin:6px 0 0; }
button, .btn { background:#101a24; color:var(--fg); border:1px solid var(--line2); border-radius:4px; padding:6px 10px; font:600 12px var(--sans); letter-spacing:.04em; text-transform:uppercase; cursor:pointer; display:inline-flex; align-items:center; gap:6px; }
button:hover, .btn:hover { border-color:var(--cyan); color:#fff; text-decoration:none; }
button.primary { background:var(--cyan2); border-color:var(--cyan); color:#fff; } button.danger { background:#3a0f12; border-color:var(--red); color:#ffb4b4; }
button.warn { background:#3a2a05; border-color:var(--amber); color:#ffe2a1; } button.active { background:var(--cyan2); border-color:var(--cyan); color:#fff; }
button:disabled { opacity:.45; cursor:not-allowed; }
input, select { background:#0a1219; color:var(--fg); border:1px solid var(--line2); border-radius:4px; padding:5px 8px; font:13px var(--mono); }
input:focus, select:focus { outline:none; border-color:var(--cyan); box-shadow:0 0 0 2px #22d3ee22; }
label.chk { display:inline-flex; align-items:center; gap:5px; font-size:12px; color:var(--muted); text-transform:uppercase; letter-spacing:.04em; cursor:pointer; }
.corners { position:relative; }
.corners::before, .corners::after { content:""; position:absolute; width:10px; height:10px; border:1px solid var(--cyan); opacity:.7; pointer-events:none; }
.corners::before { top:-1px; left:-1px; border-right:0; border-bottom:0; } .corners::after { bottom:-1px; right:-1px; border-left:0; border-top:0; }
.dot { width:8px; height:8px; border-radius:50%; background:var(--dim); display:inline-block; margin-right:8px; box-shadow:0 0 0 0 transparent; }
.dot.live { background:var(--cyan); box-shadow:0 0 8px var(--cyan); animation:blink 1.6s infinite; }
.dot.late { background:var(--amber); box-shadow:0 0 8px var(--amber); } .dot.lost { background:var(--red); box-shadow:0 0 8px var(--red); animation:blink .8s infinite; }
@keyframes blink { 50% { opacity:.35; } }

/* ---------- login ---------- */
body.login { display:flex; align-items:center; justify-content:center; }
.loginbox { background:var(--panel); border:1px solid var(--line2); padding:28px; width:min(92vw, 380px); display:flex; flex-direction:column; gap:12px; }
.loginbox h1 { margin:0; font:700 26px var(--mono); letter-spacing:.12em; color:#fff; }
.eyebrow { font:600 10px var(--mono); letter-spacing:.3em; color:var(--cyan); }
.loginbox label { display:flex; flex-direction:column; gap:4px; font:600 10px var(--mono); letter-spacing:.2em; color:var(--muted); }
.error { color:#ffb4b4; margin:0; font-size:13px; }

/* ---------- generic pages ---------- */
nav.nav { display:flex; gap:4px; align-items:center; padding:8px 14px; background:#040609; border-bottom:1px solid var(--line); position:sticky; top:0; z-index:1000; }
nav.nav a { color:var(--muted); padding:6px 10px; border-radius:4px; font:600 12px var(--mono); letter-spacing:.12em; }
nav.nav a.active, nav.nav a:hover { color:#fff; background:#101a24; text-decoration:none; }
nav.nav .brand { color:#fff; font-weight:700; margin-right:10px; } nav.nav .logout { margin-left:auto; }
.page { padding:0 14px 30px; } .page h1 { font:700 18px var(--mono); letter-spacing:.14em; margin:16px 0 10px; }
table.list { width:100%; border-collapse:collapse; margin:0 0 20px; font-size:13px; }
table.list th, table.list td { text-align:left; padding:6px 8px; border-bottom:1px solid var(--line); vertical-align:top; }
table.list th { color:var(--muted); font:600 10px var(--mono); letter-spacing:.14em; position:sticky; top:42px; background:var(--bg); }
table.list.small td { font-size:12px; padding:4px 6px; }
tr.alarm td:first-child { border-left:3px solid var(--red); } tr.stale td { color:var(--dim); }
form.filter { display:flex; gap:10px; flex-wrap:wrap; align-items:end; margin:0 0 10px; }
form.filter label { display:flex; flex-direction:column; font:600 10px var(--mono); letter-spacing:.14em; color:var(--muted); gap:3px; }
.tag { font:600 11px var(--mono); padding:1px 6px; border-radius:3px; background:#13202b; color:var(--fg); }
.tag.alarm_on { background:#3a0f12; color:#ffb4b4; } .tag.alarm_off { background:#0f2a1a; color:#9ff0b9; } .tag.link_lost { background:#3a2a05; color:#ffe2a1; }
.tag.link_ok { background:#0f2a1a; color:#9ff0b9; } .tag.batt_low { background:#3a2a05; color:#ffe2a1; } .tag.restart { background:#2a1a3a; color:#d8c3ff; }
.tag.cmd_reply { background:#0b2730; color:#9ae6f0; } .tag.cmd_timeout { background:#3a0f12; color:#ffb4b4; }

/* ---------- app layout ---------- */
.app { height:100%; display:flex; flex-direction:column; }
.topbar { display:flex; align-items:center; gap:14px; padding:6px 12px; background:#040609f2; border-bottom:1px solid var(--line); min-height:56px; }
.topbar .brand { font:700 15px var(--mono); letter-spacing:.14em; color:#fff; display:flex; align-items:center; white-space:nowrap; }
.topbar .brand .node { color:var(--dim); margin-left:10px; font-weight:400; font-size:12px; }
.chips { display:flex; gap:8px; flex:1; overflow-x:auto; }
.chip { background:#0a1219; border:1px solid var(--line2); border-radius:4px; padding:4px 10px; min-width:120px; display:flex; flex-direction:column; line-height:1.2; }
.chip b { font:600 9px var(--mono); letter-spacing:.2em; color:var(--muted); } .chip span { font:600 15px var(--mono); color:#fff; white-space:nowrap; }
.chip small { font:11px var(--mono); color:var(--muted); white-space:nowrap; }
.chip.mode.alarm { border-color:var(--red); background:#2a0b0e; } .chip.mode.alarm span { color:#ff8a8a; }
.chip.mode.normal { border-color:var(--green); } .chip.mode.normal span { color:#8ff0b0; } .chip.mode.unknown span { color:var(--muted); }
.chip.comms.live { border-color:var(--cyan); } .chip.comms.live span { color:var(--cyan); }
.chip.comms.late { border-color:var(--amber); background:#2a1f05; } .chip.comms.late span { color:#ffd66b; }
.chip.comms.lost { border-color:var(--red); background:#2a0b0e; } .chip.comms.lost span { color:#ff8a8a; }
.chip.warn { border-color:var(--amber); } .chip.warn span { color:#ffd66b; } .chip.bad { border-color:var(--red); } .chip.bad span { color:#ff8a8a; }
.topbar .right { display:flex; align-items:center; gap:10px; } .topbar .right a, .topbar .right button { font-size:14px; padding:4px 8px; }
.clock { color:var(--muted); font-size:13px; }
.main { flex:1; display:flex; min-height:0; }
.mapwrap { flex:1; position:relative; min-width:0; }
#map { position:absolute; inset:0; background:#05080c; }
.leaflet-container { font:inherit; } .leaflet-popup-content-wrapper, .leaflet-popup-tip { background:#0c141c; color:var(--fg); border:1px solid var(--line2); }
.leaflet-popup-content { font:12px var(--mono); margin:10px 12px; } .leaflet-control-zoom a { background:#0c141c !important; color:#fff !important; border-color:var(--line2) !important; }
.leaflet-bar { border:1px solid var(--line2) !important; }
.mapctl { position:absolute; top:10px; left:54px; z-index:800; background:var(--panel); border:1px solid var(--line2); padding:6px 8px; display:flex; gap:10px; align-items:center; flex-wrap:wrap; max-width:calc(100% - 70px); }
.mapctl label { display:flex; align-items:center; gap:5px; font:600 10px var(--mono); letter-spacing:.14em; color:var(--muted); text-transform:uppercase; }
.mapctl select { padding:3px 6px; font-size:12px; }
.legend { position:absolute; top:10px; right:10px; z-index:800; background:var(--panel); border:1px solid var(--line2); padding:5px 8px; font-size:10px; display:flex; gap:10px; flex-wrap:wrap; max-width:40%; }
.legend span { display:flex; align-items:center; gap:4px; } .legend i { width:14px; height:4px; display:inline-block; border-radius:2px; }
.hud { position:absolute; left:10px; bottom:168px; z-index:800; background:var(--panel); border:1px solid var(--line2); padding:8px 12px; min-width:300px; display:none; }
.hud.on { display:block; }
.hud-time { font-size:13px; color:var(--cyan); letter-spacing:.06em; margin-bottom:4px; }
.hud-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:4px 14px; }
.hud-grid div { display:flex; flex-direction:column; position:relative; } .hud-grid b { font:600 9px var(--mono); letter-spacing:.2em; color:var(--muted); }
.hud-grid span { font-size:16px; color:#fff; }
.compass { position:absolute; right:0; top:10px; width:18px; height:18px; border:1px solid var(--line2); border-radius:50%; }
.compass::after { content:""; position:absolute; left:50%; top:1px; width:0; height:0; border-left:4px solid transparent; border-right:4px solid transparent; border-bottom:8px solid var(--cyan); transform:translateX(-50%); }
.timeline { position:absolute; left:10px; right:10px; bottom:10px; z-index:800; background:var(--panel); border:1px solid var(--line2); padding:6px 10px 4px; }
.tl-row { display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap; align-items:center; }
.tl-range, .tl-play { display:flex; gap:4px; align-items:center; flex-wrap:wrap; } .tl-range button, .tl-play button { padding:3px 8px; }
.tl-range input[type=datetime-local] { font-size:11px; padding:2px 4px; width:146px; }
#tl-canvas { width:100%; height:64px; display:block; margin-top:4px; cursor:crosshair; }
#slider { width:100%; margin:0; accent-color:var(--cyan); }
.side { width:380px; background:#070c11; border-left:1px solid var(--line); display:flex; flex-direction:column; min-height:0; }
.tabs { display:flex; border-bottom:1px solid var(--line); }
.tabs button { flex:1; border:0; border-radius:0; background:transparent; color:var(--muted); padding:10px 4px; font:600 11px var(--mono); letter-spacing:.14em; border-bottom:2px solid transparent; }
.tabs button.active { color:#fff; border-bottom-color:var(--cyan); } .tabs .badge { margin-left:4px; background:var(--amber); color:#000; border-radius:8px; padding:0 5px; font-size:10px; }
.tabs .badge:empty { display:none; }
.tab { display:none; overflow:auto; padding:10px; gap:10px; flex-direction:column; } .tab.active { display:flex; }
.card { background:var(--bg2); border:1px solid var(--line); padding:10px 12px; }
.card-h { font:600 11px var(--mono); letter-spacing:.2em; color:var(--cyan); margin-bottom:8px; display:flex; justify-content:space-between; align-items:baseline; gap:8px; }
.card-h small { letter-spacing:0; font-weight:400; }
.kv { display:grid; grid-template-columns:1fr 1fr; gap:6px 12px; }
.kv div { display:flex; flex-direction:column; } .kv b { font:600 9px var(--mono); letter-spacing:.18em; color:var(--muted); } .kv span { font:500 13px var(--mono); color:#fff; }
.kv span.ok { color:#8ff0b0; } .kv span.warn { color:#ffd66b; } .kv span.bad { color:#ff8a8a; } .kv div.wide { grid-column:1 / -1; }
.row { display:flex; gap:6px; flex-wrap:wrap; margin-top:8px; align-items:center; } .row input { flex:1; min-width:140px; }
.cmdgrid { display:grid; grid-template-columns:repeat(3, 1fr); gap:6px; margin:6px 0; } .cmdgrid button { font-family:var(--mono); text-transform:none; justify-content:center; }
.confirm { margin-top:8px; padding:8px; border:1px solid var(--amber); background:#2a1f05; display:flex; gap:8px; align-items:center; flex-wrap:wrap; font-size:13px; }
.cmdlog { list-style:none; margin:0; padding:0; font:12px var(--mono); }
.cmdlog li { padding:6px 0; border-top:1px solid var(--line); display:grid; grid-template-columns:auto 1fr auto; gap:4px 8px; }
.cmdlog .st { font-weight:600; } .cmdlog .st.sent { color:var(--amber); } .cmdlog .st.replied { color:#8ff0b0; } .cmdlog .st.error, .cmdlog .st.timeout { color:#ff8a8a; }
.cmdlog .reply { grid-column:1 / -1; color:var(--fg); white-space:pre-wrap; word-break:break-word; } .cmdlog .reply.err { color:#ff8a8a; }
.cmdlog .t { color:var(--muted); }
.filters { display:flex; gap:4px; flex-wrap:wrap; margin-bottom:6px; } .filters button { padding:2px 7px; font-size:10px; }
.events { list-style:none; margin:0; padding:0; font-size:12px; }
.events li { padding:6px 0; border-top:1px solid var(--line); display:flex; gap:8px; align-items:flex-start; cursor:pointer; }
.events li:hover { background:#0c141c; } .events .t { font-family:var(--mono); color:var(--muted); white-space:nowrap; }
.bars { display:flex; flex-direction:column; gap:4px; margin:8px 0; font:11px var(--mono); }
.bars .bar { display:grid; grid-template-columns:70px 1fr 40px; gap:6px; align-items:center; } .bars .bar i { height:8px; background:var(--line2); display:block; position:relative; }
.bars .bar i b { position:absolute; left:0; top:0; bottom:0; background:var(--cyan); }
#rssi, #hist-speed { width:100%; display:block; background:#070c11; border:1px solid var(--line); margin-top:8px; }
.marker-car { width:22px; height:22px; border-radius:50%; background:var(--cyan); border:2px solid #fff; box-shadow:0 0 0 4px #22d3ee33, 0 0 14px var(--cyan); }
.marker-car.alarm { background:var(--red); box-shadow:0 0 0 4px #ef444433, 0 0 16px var(--red); animation:pulse 1.2s infinite; }
.marker-car.lost { background:var(--dim); box-shadow:none; }
@keyframes pulse { 0%{box-shadow:0 0 0 4px #ef444455} 70%{box-shadow:0 0 0 18px #ef444400} 100%{box-shadow:0 0 0 4px #ef444400} }
.marker-cursor { width:0; height:0; border-left:8px solid transparent; border-right:8px solid transparent; border-bottom:22px solid #fff; filter:drop-shadow(0 0 4px var(--cyan)); transform-origin:50% 64%; }
.arrow { width:0; height:0; border-left:4px solid transparent; border-right:4px solid transparent; border-bottom:9px solid #ffffffcc; transform-origin:50% 60%; }
.toast { position:fixed; left:50%; bottom:24px; transform:translateX(-50%); background:#0c141c; border:1px solid var(--cyan); color:#fff; padding:8px 14px; z-index:2000; font:13px var(--mono); }
.toast.err { border-color:var(--red); }
@media (max-width: 1023px) {
  .main { flex-direction:column; } .mapwrap { flex:0 0 52vh; } .side { width:auto; border-left:0; border-top:1px solid var(--line); flex:1; }
  .topbar { flex-wrap:wrap; min-height:0; padding:6px 8px; } .topbar .brand { font-size:13px; } .chips { order:3; width:100%; } .chip { min-width:104px; padding:3px 8px; }
  .chip span { font-size:13px; } .mapctl { top:6px; left:48px; gap:6px; padding:4px 6px; } .mapctl label span { display:none; }
  .legend { display:none; } .hud { left:6px; right:6px; bottom:116px; min-width:0; } .hud-grid span { font-size:14px; }
  .timeline { left:6px; right:6px; bottom:6px; padding:4px 6px; } .tl-range input[type=datetime-local], .tl-range span, #prevday, #nextday { display:none; }
  #tl-canvas { height:40px; } .kv { grid-template-columns:1fr 1fr; } .cmdgrid { grid-template-columns:repeat(3, 1fr); }
}

.dark-tiles { filter: invert(1) hue-rotate(185deg) brightness(.78) contrast(1.15) saturate(.55); }
.confirm[hidden], [hidden] { display:none !important; }
@media (max-width: 1023px) {
  .topbar { display:grid; grid-template-columns:1fr auto; gap:4px 8px; }
  .topbar .brand { grid-column:1; } .topbar .right { grid-column:2; } .chips { grid-column:1 / -1; flex-wrap:nowrap; overflow-x:auto; gap:6px; padding-bottom:2px; }
  .chip { min-width:132px; flex:0 0 auto; } .chip small { font-size:10px; }
  .mapctl { flex-wrap:nowrap; overflow-x:auto; max-width:calc(100% - 60px); gap:8px; } .mapctl label { white-space:nowrap; }
  .hud { bottom:98px; padding:6px 8px; } .hud-grid { grid-template-columns:repeat(3, 1fr); gap:2px 8px; } .hud-grid span { font-size:12px; } .hud-time { font-size:11px; }
  .timeline { padding:4px 6px 2px; } #tl-canvas { height:34px; } .tl-play label.chk { display:none; } .tl-play select { padding:2px 4px; }
}