:root {
  --bg: #0b0e11; --surface: #13171b; --surface-2: #181d22; --border: #282e33;
  --text: #edf1f3; --text-2: #98a4ad; --green: #43d18d; --yellow: #efc66d; --red: #ff6681; --blue: #70b8ef;
  --radius: 6px; --font: 'Montserrat', system-ui, -apple-system, 'Segoe UI', sans-serif; --mono: 'Fira Mono', ui-monospace, Consolas, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font: 14px/1.45 var(--font); }
button { font: inherit; color: inherit; cursor: pointer; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.ok { color: var(--green); } .warn { color: var(--yellow); } .bad { color: var(--red); } .info { color: var(--blue); }
[hidden] { display: none !important; }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(360px, 100%); background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 24px; display: grid; gap: 14px; }
.login-card h1 { margin: 0 0 4px; font-size: 18px; }
.login-card label { display: grid; gap: 6px; color: var(--text-2); font-size: 13px; }
.login-card input:not([type=checkbox]) { background: var(--bg); border: 1px solid var(--border); border-radius: 5px; color: var(--text); padding: 9px 10px; font: inherit; }
.login-card input:focus { outline: 2px solid var(--blue); outline-offset: 0; }
.login-card .check { display: flex; align-items: center; gap: 8px; }
.login-card button { background: var(--green); color: #06130c; border: 0; border-radius: 5px; padding: 10px; font-weight: 600; }
.err { color: var(--red); margin: 0; min-height: 1em; font-size: 13px; }

/* layout */
.app { display: grid; grid-template-columns: 430px 1fr; height: 100vh; }
.side { border-right: 1px solid var(--border); display: flex; flex-direction: column; min-height: 0; background: var(--bg); }
.side-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px 10px; }
.brand { display: flex; align-items: center; gap: 8px; font-size: 15px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-2); flex: none; }
.dot.on { background: var(--green); } .dot.off { background: var(--red); } .dot.stale { background: var(--yellow); }
.side-actions { display: flex; gap: 4px; }
.icon { background: transparent; border: 1px solid transparent; border-radius: 5px; width: 32px; height: 32px; display: grid; place-items: center; color: var(--text-2); }
.icon:hover { border-color: var(--border); color: var(--text); }
.icon:disabled { opacity: .4; cursor: default; }
.icon svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.counters { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 0 16px 10px; }
.counters div { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 10px; display: grid; }
.counters span { color: var(--text-2); font-size: 12px; }
.counters b { font-size: 20px; }
.times { padding: 0 16px 10px; color: var(--text-2); font-size: 12px; display: grid; gap: 2px; }
.node-list { overflow-y: auto; flex: 1; padding: 0 10px 16px; }
.group-title { color: var(--text-2); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; padding: 10px 6px 4px; }

/* node rows (compact) */
.node .scan-wrap { justify-self: end; }
.node .chip { justify-self: end; }
.node { display: grid; grid-template-columns: 22px minmax(0, 1fr) 64px 34px 112px; align-items: center; gap: 8px; min-height: 36px; padding: 4px 8px; border-radius: 5px; border: 1px solid transparent; transition: background .15s; }
.node:hover { background: var(--surface); }
.node .flag { font-size: 16px; line-height: 1; display: flex; align-items: center; }
.flag-img { width: 18px; height: 13.5px; border-radius: 2px; vertical-align: -2px; box-shadow: 0 0 0 1px rgba(255,255,255,.08); object-fit: cover; display: inline-block; }
.flag-img.none { background: var(--surface-2); }
.node .name { background: none; border: 0; padding: 0; text-align: left; font-weight: 500; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node .name:hover { text-decoration: underline; text-underline-offset: 3px; }
.badge { font-size: 10px; font-weight: 600; padding: 1px 6px; border-radius: 4px; border: 1px solid var(--border); color: var(--text-2); margin-left: 6px; vertical-align: 1px; }
.users { color: var(--text); font-size: 13px; min-width: 36px; text-align: right; }
.users.unknown { color: var(--text-2); }
.chip { font-size: 11px; font-weight: 600; padding: 2px 7px; border-radius: 4px; white-space: nowrap; }
.chip.ok { background: rgba(67,209,141,.12); } .chip.warn { background: rgba(239,198,109,.12); } .chip.bad { background: rgba(255,102,129,.14); } .chip.muted { color: var(--text-2); background: var(--surface-2); }
.flash-ok { animation: flashOk 1.2s; } .flash-bad { animation: flashBad 1.2s; }
@keyframes flashOk { from { background: rgba(67,209,141,.22); } } @keyframes flashBad { from { background: rgba(255,102,129,.25); } }

/* node cards (full) */
.scan { display: inline-flex; align-items: center; gap: 3px; color: var(--green); font-size: 12px; }
.scan svg { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linejoin: round; }
.scan.none { color: var(--text-2); }
.cats { grid-area: cats; display: grid; gap: 3px; }
.cat { display: grid; grid-template-columns: 82px 1fr 46px; align-items: center; gap: 8px; font-size: 11.5px; color: var(--text-2); }
.cat .num { text-align: right; color: var(--text); }
.track { height: 4px; background: var(--surface-2); border-radius: 2px; overflow: hidden; }
.track i { display: block; height: 100%; width: 0; border-radius: 2px; transition: width .35s; }
.track i.ok { background: var(--green); } .track i.bad { background: var(--red); } .track i.warn { background: var(--yellow); } .track i.muted { background: var(--text-2); }
.bars i.warn { background: var(--yellow); }
details summary { cursor: pointer; color: var(--text-2); font-size: 13px; margin-bottom: 6px; }
.full .node { grid-template-columns: 22px 1fr auto auto; grid-template-areas: "flag name scan chip" ". meta meta meta" ". cats cats cats" ". hist hist hist"; background: var(--surface); border-color: var(--border); padding: 10px 12px; margin-bottom: 6px; row-gap: 6px; }
.full .node .flag { grid-area: flag; } .full .node .name-wrap { grid-area: name; } .full .node .chip { grid-area: chip; } .full .node .users { display: none; } .full .node .scan-wrap { grid-area: scan; }
.meta { grid-area: meta; color: var(--text-2); font-size: 12px; display: flex; flex-wrap: wrap; gap: 4px 12px; }
.meta b { color: var(--text); font-weight: 500; }
.hist { grid-area: hist; display: grid; gap: 4px; }
.bars { display: grid; grid-template-columns: repeat(48, 1fr); gap: 1px; height: 14px; }
.bars i { border-radius: 1px; background: var(--surface-2); }
.bars i.ok { background: rgba(67,209,141,.7); } .bars i.bad { background: var(--red); }
.hist small { color: var(--text-2); font-size: 11px; }
.name-wrap { min-width: 0; display: flex; align-items: center; }

/* main */
.main { overflow-y: auto; padding: 14px 20px 24px; display: grid; gap: 14px; align-content: start; }
.topbar { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.topbar h2 { margin: 0; font-size: 18px; }
.metric { display: flex; align-items: baseline; gap: 8px; color: var(--text-2); font-size: 13px; }
.metric b { color: var(--text); font-size: 20px; }
.mode { margin-left: auto; display: flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.mode button { background: transparent; border: 0; padding: 6px 12px; color: var(--text-2); font-size: 13px; }
.mode button.active { background: var(--surface-2); color: var(--text); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; }
.card h3 { margin: 0 0 8px; font-size: 14px; font-weight: 600; }
.banner { border-radius: 6px; padding: 8px 12px; font-size: 13px; border: 1px solid; }
.banner.warn { border-color: rgba(239,198,109,.4); background: rgba(239,198,109,.08); color: var(--yellow); }
.empty { color: var(--text-2); font-size: 13px; padding: 4px 0; }
.att { display: flex; align-items: center; gap: 10px; padding: 7px 0; border-top: 1px solid var(--border); font-size: 13px; }
.att:first-child { border-top: 0; }

/* journal */
.day { color: var(--text-2); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; padding: 10px 0 4px; }
.ev { display: grid; grid-template-columns: 52px 18px 1fr; gap: 8px; align-items: start; padding: 7px 8px; border-radius: 5px; font-size: 13.5px; transition: background .15s, transform .15s; }
.ev:hover { background: var(--surface-2); transform: scale(1.008); }
.ev time { color: var(--text-2); font-family: var(--mono); font-size: 12.5px; padding-top: 1px; }
.ev .sub { color: var(--text-2); font-size: 12.5px; }
.ev.alarm { box-shadow: inset 2px 0 0 var(--red); }
.ev.fresh { animation: fresh 2s; }
@keyframes fresh { from { background: rgba(112,184,239,.18); } }

/* modal */
dialog { background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 0; width: min(640px, calc(100vw - 32px)); max-height: calc(100vh - 48px); }
dialog[open] { animation: pop .18s ease-out; }
@keyframes pop { from { opacity: 0; transform: translateY(6px); } }
dialog::backdrop { background: rgba(0,0,0,.55); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--surface); }
.modal-head h3 { margin: 0; font-size: 15px; }
#modal-body { padding: 14px 16px 18px; display: grid; gap: 14px; }
.kv { display: grid; grid-template-columns: 170px 1fr; gap: 6px 12px; font-size: 13px; }
.kv dt { color: var(--text-2); } .kv dd { margin: 0; overflow-wrap: anywhere; }
.btn { background: var(--surface-2); border: 1px solid var(--border); border-radius: 5px; padding: 6px 12px; font-size: 13px; }
.btn:hover { border-color: var(--text-2); } .btn:disabled { opacity: .45; cursor: default; }
table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
th, td { text-align: left; padding: 6px 6px; border-top: 1px solid var(--border); vertical-align: top; }
th { color: var(--text-2); font-weight: 500; }
/* infrastructure */
.infra { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 8px; }
.infra-item { text-align: left; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; display: grid; gap: 6px; font-size: 13px; transition: border-color .15s; }
.infra-item:hover { border-color: var(--text-2); }
.infra-head { display: flex; align-items: center; gap: 8px; min-width: 0; }
.infra-head b { font-weight: 500; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.infra:not(.full) .infra-item { padding: 6px 10px; }
.infra .cat { grid-template-columns: 38px 1fr 40px; }

/* map */
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.card-head h3 { margin: 0; }
.map-wrap { position: relative; }
#map { width: 100%; height: auto; display: block; aspect-ratio: 2.3 / 1; }
#map .land { fill: #161b20; stroke: #222a30; stroke-width: .4; }
#map .route { fill: none; stroke: rgba(112,184,239,.35); stroke-width: 1.1; transition: stroke .2s, opacity .2s; }
#map.focus .route { opacity: .15; }
#map.focus .route.hl { opacity: 1; stroke: var(--blue); stroke-width: 1.6; }
#map .particle { fill: var(--blue); opacity: .85; }
#map.static .particle { display: none; }
#map.focus .particle:not([data-cc]) { opacity: .2; }
#map .pt { cursor: pointer; outline: none; }
#map .dot-c { fill: var(--green); stroke: var(--bg); stroke-width: 1; }
#map .pt.warn .dot-c { fill: var(--yellow); } #map .pt.bad .dot-c { fill: var(--red); } #map .pt.muted .dot-c { fill: var(--text-2); }
#map .leader { stroke: var(--text-2); opacity: .55; }
#map .lbl-bg { fill: rgba(11,14,17,.82); stroke: var(--border); stroke-width: .5; }
#map .lbl { fill: var(--text); font-family: var(--font); font-weight: 500; }
#map .pt:hover .lbl-bg, #map .pt:focus .lbl-bg { stroke: var(--blue); }
.map-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 14px; font-size: 12px; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border); }
.lg-t { color: var(--text-2); font-size: 10.5px; text-transform: uppercase; letter-spacing: .05em; flex-basis: 100%; }
.lg-i { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.sd { width: 7px; height: 7px; border-radius: 50%; background: var(--text-2); flex: none; }
.sd.ok { background: var(--green); } .sd.bad { background: var(--red); } .sd.warn { background: var(--yellow); }
.node.hl-country { background: rgba(112,184,239,.10); }

.h4 { margin: 0 0 6px; font-size: 13px; font-weight: 600; }
.muted { color: var(--text-2); }
.note { color: var(--text-2); font-size: 12px; }
code { font-family: var(--mono); font-size: 12px; background: var(--bg); padding: 1px 4px; border-radius: 3px; }
.toast { position: fixed; right: 16px; bottom: 16px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 10px 14px; font-size: 13px; opacity: 0; transform: translateY(8px); transition: .2s; pointer-events: none; }
.toast.show { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; height: auto; }
  .side { border-right: 0; border-bottom: 1px solid var(--border); }
  .node-list { overflow: visible; }
  .main { overflow: visible; padding: 14px 16px 24px; }
  .mode { margin-left: 0; }
  .kv { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}