:root{
  --bg:#0d1117; --panel:#141a22; --panel2:#1a212b; --line:#273140; --line2:#334155;
  --text:#e6edf3; --muted:#8b98a9; --faint:#5b6878;
  --normal:#22c55e; --z1:#2E9E3E; --z2:#4363D8; --alarm:#ef4444; --power:#f59e0b; --offline:#7c8796; --pending:#6366f1; --accent:#3b82f6;
  --r:10px;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-size:14px}
.hidden{display:none!important}
.muted{color:var(--muted)}
button{font:inherit;color:inherit}
input,select,textarea{font:inherit;color:var(--text);background:#0f141b;border:1px solid var(--line2);border-radius:8px;padding:8px 10px;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:transparent}
label{display:block;font-size:12px;color:var(--muted);margin:10px 0 0}
label > input,label > select,label > textarea{margin-top:4px}
svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.btn{background:var(--panel2);border:1px solid var(--line2);border-radius:8px;padding:7px 12px;cursor:pointer;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;justify-content:center}
.btn:hover{border-color:#4b5b70;background:#202938}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.btn.primary:hover{filter:brightness(1.1)}
.btn.danger{color:#fca5a5;border-color:#5b2730}
.btn.danger:hover{background:#3a1820}
.btn.icon{padding:7px;width:34px;height:34px;font-size:18px;line-height:1}
.btn.sm{padding:4px 9px;font-size:12px}
.btn.icon.sm{width:28px;height:28px;padding:4px}
.btn.wide{width:100%;margin-top:16px;padding:10px}
.btn.on{background:#1e3a5f;border-color:var(--accent)}
.btn.off .wave{display:none}

/* login */
.login{position:fixed;inset:0;display:grid;place-items:center;background:radial-gradient(1200px 600px at 50% -10%,#1b2738,var(--bg))}
.login-card{width:340px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px}
.login-card h1{margin:12px 0 2px;font-size:22px}
.login-card p{margin:0 0 8px;font-size:13px}
.brand-mark{width:44px;height:44px;border-radius:10px;background:#12301f;color:var(--normal);display:grid;place-items:center}
.brand-mark svg{width:26px;height:26px}
.brand-mark.sm{width:34px;height:34px}
.brand-mark.sm svg{width:20px;height:20px}
.err{color:#fca5a5;font-size:13px;min-height:18px;margin-top:8px}

/* layout */
.app{display:flex;flex-direction:column;height:100vh}
.topbar{display:flex;align-items:center;gap:16px;padding:10px 16px;border-bottom:1px solid var(--line);background:var(--panel)}
.brand{display:flex;gap:10px;align-items:center;min-width:220px}
.site-name{font-weight:700;font-size:15px}
.sub{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--offline)}
.dot.live{background:var(--normal);box-shadow:0 0 0 3px #22c55e33}
.counters{display:flex;gap:8px;flex:1;justify-content:center;flex-wrap:wrap}
.counter{display:flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:var(--panel2);font-size:13px}
.counter b{font-size:16px;font-variant-numeric:tabular-nums}
.counter i{width:10px;height:10px;border-radius:50%}
.counter.hot{border-color:var(--alarm);background:#3a1418}
.actions{display:flex;gap:6px}

.alarm-banner{background:var(--alarm);color:#fff;padding:8px 16px;font-weight:600;display:flex;align-items:center;gap:12px;animation:flashbg 1s steps(2) infinite}
.alarm-banner .btn{background:#fff;color:#7f1d1d;border:0;font-weight:700}
.alarm-banner.acked{animation:none;background:#7f1d1d}
@keyframes flashbg{50%{background:#b91c1c}}

.main{flex:1;display:flex;min-height:0}
.rail{width:300px;border-right:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;min-height:0}
.rail-head{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid var(--line);font-weight:600}
.rail-head input{padding:5px 8px;font-size:12px}
.rail-sub{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:10px 12px 6px}
.tiles{overflow:auto;flex:1;padding:8px;display:flex;flex-direction:column;gap:6px}

.tile{border:1px solid var(--line);border-left:4px solid var(--c,var(--offline));border-radius:var(--r);padding:8px 10px;background:var(--panel2);cursor:pointer}
.tile:hover{border-color:#4b5b70;border-left-color:var(--c)}
.tile.sel{outline:2px solid var(--accent);outline-offset:-1px}
.tile .t1{display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.tile .nm{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tile .st{font-size:11px;font-weight:700;letter-spacing:.04em;color:var(--c)}
.tile .t2{font-size:11px;color:var(--faint);margin-top:1px}
.chips{display:flex;gap:4px;margin-top:6px}
.chip{flex:1;text-align:center;font-size:11px;padding:3px 0;border-radius:6px;background:#0f141b;border:1px solid var(--line);color:var(--muted)}
.chip.normal{color:#86efac;border-color:#1f4d33}
.chip.alarm{color:#fff;background:var(--alarm);border-color:var(--alarm)}
.chip.unknown,.chip.na{opacity:.55}
.tile.blink{animation:tileblink 1s steps(2) infinite}
@keyframes tileblink{50%{background:#3a1418}}

.unknown{border-top:1px solid var(--line);max-height:40%;overflow:auto;padding-bottom:8px}
.unk{margin:0 8px 6px;padding:8px 10px;border:1px dashed #4b5b70;border-radius:var(--r);display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px}
.unk b{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}

/* map */
.mapwrap{flex:1;position:relative;overflow:hidden;background:#0a0e13}
.viewport{position:absolute;inset:0;cursor:grab;touch-action:none}
.viewport.dragging{cursor:grabbing}
.viewport.placing{cursor:crosshair}
.stage{position:absolute;left:0;top:0;transform-origin:0 0}
.stage img{display:block;user-select:none;-webkit-user-drag:none;max-width:none}
.pins{position:absolute;inset:0}
.map-tools{position:absolute;left:12px;top:12px;z-index:5;display:flex;flex-direction:column;gap:6px}
.map-tools .btn{background:#141a22e6}
.legend{position:absolute;left:12px;bottom:12px;z-index:5;flex-wrap:wrap;max-width:calc(100% - 24px);background:#141a22e6;border:1px solid var(--line);border-radius:8px;padding:6px 10px;display:flex;gap:12px;font-size:12px;color:var(--muted)}
.legend span{display:flex;align-items:center;gap:5px}
.lg{width:10px;height:10px;border-radius:50%;display:inline-block}
.lg.normal{background:var(--normal)}.lg.split{background:#fff;border:2px solid #111}.lg.ghost{border:2px dashed #cbd5e1}.lgl{width:16px;height:4px;border-radius:2px;display:inline-block}.lg.alarm{background:var(--alarm)}.lg.powerfail{background:var(--power)}.lg.offline{background:var(--offline)}.lg.pending{background:var(--pending)}
.layout-hint{position:absolute;top:12px;left:50%;transform:translateX(-50%);z-index:6;background:#1e3a5f;border:1px solid var(--accent);padding:6px 8px 6px 14px;border-radius:999px;display:flex;align-items:center;gap:10px;font-size:13px}
.empty-map{position:absolute;inset:0;display:grid;place-items:center;color:var(--muted);text-align:center}

/* pin (Tally markup style: filled circle, white ring, white centre dot) */
.pin{position:absolute;width:0;height:0;z-index:2}
.pin .mk{position:absolute;left:-15px;top:-15px;width:30px;height:30px;cursor:pointer;filter:drop-shadow(0 1px 3px #000c);transition:transform .12s}
.pin .mk:hover{transform:scale(1.15)}
.pin .mk svg{width:30px;height:30px;stroke:none;display:block}
.pin .lbl{position:absolute;left:15px;top:-31px;white-space:nowrap;font-size:12px;font-weight:700;padding:2px 6px;border-radius:4px;background:#0d1117eb;border:1.5px solid var(--c);color:#fff;pointer-events:none;letter-spacing:.02em}
.pin.flip .lbl{left:auto;right:15px}
.pin .lbl em{font-style:normal;color:var(--c);margin-right:5px}
.pin .lbl small{font-weight:600;color:var(--c);margin-left:5px}
.pin .halo{position:absolute;left:-22px;top:-22px;width:44px;height:44px;border-radius:50%;border:3px solid var(--c);opacity:0;pointer-events:none}
.pin.alarm.unacked .halo,.pin.powerfail.unacked .halo,.pin.offline.unacked .halo{animation:halo 1.2s ease-out infinite}
.pin.sel .lbl{background:var(--c)}
.pin.sel .lbl em,.pin.sel .lbl small{color:#fff}
.pin.sel{z-index:4}
.pin.dragging .mk{cursor:grabbing}
body.layout .pin .mk{cursor:grab}
.pin.moving{z-index:5}
.pin.moving .mk{cursor:grab}
.pin.moving .halo{border-color:var(--accent);animation:halo 1.2s ease-out infinite}
.pin.moving .lbl{background:var(--accent);border-color:var(--accent)}
.pin.ghost{z-index:1;--c:#94a3b8}
.pin.ghost .lbl{background:#0d1117b3;color:#cbd5e1;font-weight:600;border-style:dashed}
.pin.ghost .mk{opacity:.85}
@keyframes halo{0%{opacity:.9;transform:scale(.4)}100%{opacity:0;transform:scale(1.8)}}

/* zones drawn over the site drawing */
#zoneLayer{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1;overflow:visible}
#zoneLayer .hit{pointer-events:all;cursor:help}
#zoneLayer text{font-family:inherit}
@keyframes zflash{0%,100%{opacity:1}50%{opacity:.18}}
@keyframes zchase{to{stroke-dashoffset:-36}}
#zoneLayer .zl.flash,#zoneLayer .za.flash{animation:zflash 1s steps(2,jump-none) infinite}
#zoneLayer .zrun{animation:zchase .9s linear infinite}
@media (prefers-reduced-motion:reduce){#zoneLayer .zl.flash,#zoneLayer .za.flash,#zoneLayer .zrun,.pin .halo{animation:none!important}}
.en-tag{font-style:normal;font-size:11px;font-weight:700;color:var(--muted);border:1px solid var(--line2);border-radius:4px;padding:0 4px;margin-right:6px}

/* drawer */
.drawer{width:360px;border-left:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;min-height:0}
.drawer.closed{display:none}
.drawer-tabs{display:flex;align-items:center;border-bottom:1px solid var(--line);padding:0 6px 0 4px}
.tab{background:none;border:0;padding:12px 12px;cursor:pointer;color:var(--muted);border-bottom:2px solid transparent;font-weight:600}
.tab.active{color:var(--text);border-bottom-color:var(--accent)}
.drawer-tabs .close{margin-left:auto}
.tabpane{overflow:auto;flex:1;padding:14px}
.dhead{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.dhead h3{margin:0;font-size:18px}
.dhead .sn{font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--muted);font-size:12px;margin-top:2px}
.bigstate{margin:14px 0;padding:14px;border-radius:var(--r);background:color-mix(in srgb,var(--c) 14%,transparent);border:1px solid color-mix(in srgb,var(--c) 45%,transparent);display:flex;justify-content:space-between;align-items:center}
.bigstate b{font-size:22px;color:var(--c);letter-spacing:.02em}
.bigstate span{font-size:12px;color:var(--muted);text-align:right}
.sigcards{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.sig{border:1px solid var(--line);border-radius:var(--r);padding:10px 8px;text-align:center;background:var(--panel2)}
.sig .k{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.sig .v{font-size:17px;font-weight:800;margin:4px 0 2px}
.sig .s{font-size:10px;color:var(--faint)}
.sig.normal .v{color:var(--normal)} .sig.alarm{border-color:var(--alarm);background:#2a1216} .sig.alarm .v{color:var(--alarm)}
.sig.power.alarm{border-color:var(--power);background:#2a2010} .sig.power.alarm .v{color:var(--power)}
.sig.unknown .v,.sig.na .v{color:var(--faint)}
.kv{display:grid;grid-template-columns:110px 1fr;gap:6px 10px;font-size:13px;margin:14px 0}
.kv div:nth-child(odd){color:var(--muted)}
.section-t{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:18px 0 6px}
.pintable{width:100%;border-collapse:collapse;font-size:12px}
.pintable td{padding:5px 6px;border-bottom:1px solid var(--line)}
.pintable td:last-child{text-align:right;font-family:ui-monospace,Menlo,Consolas,monospace}
.pintable tr.used td:first-child{color:var(--text);font-weight:600}
pre.raw{background:#0a0e13;border:1px solid var(--line);border-radius:8px;padding:10px;font-size:11px;overflow:auto;max-height:220px;white-space:pre-wrap;word-break:break-all}
.btnrow{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.log{display:flex;flex-direction:column;gap:2px}
.ev{display:grid;grid-template-columns:62px 1fr;gap:8px;padding:6px 4px;border-bottom:1px solid var(--line);font-size:12px}
.ev time{color:var(--faint);font-variant-numeric:tabular-nums}
.ev.alarm span{color:#fca5a5;font-weight:600}
.ev.offline span{color:#cbd5e1;font-weight:600}
.ev.restore span,.ev.online span{color:#86efac}
.ev.ack span,.ev.config span{color:var(--muted)}
.ev .d{font-size:10px;color:var(--faint)}

/* modal */
.modal{position:fixed;inset:0;background:#000a;display:grid;place-items:center;z-index:50;padding:16px}
.modal-card{width:520px;max-width:100%;max-height:92vh;overflow:auto;background:var(--panel);border:1px solid var(--line2);border-radius:14px;padding:18px 20px}
.modal-head{display:flex;justify-content:space-between;align-items:center}
.modal-head h2{margin:0;font-size:18px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.maprow{display:grid;grid-template-columns:90px 1fr 1fr;gap:8px;align-items:center;margin-top:8px;font-size:13px}
.maprow.h{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.help{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.45}
.code{font-family:ui-monospace,Menlo,Consolas,monospace;background:#0a0e13;border:1px solid var(--line);border-radius:6px;padding:6px 8px;font-size:12px;word-break:break-all;margin-top:4px;display:flex;justify-content:space-between;gap:8px;align-items:center}
.modal-foot{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.toast{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);background:#1f2937;border:1px solid var(--line2);padding:10px 16px;border-radius:10px;z-index:60;box-shadow:0 8px 30px #0008}

@media (max-width:1100px){.drawer{position:absolute;right:0;top:0;bottom:0;z-index:20;box-shadow:-10px 0 30px #0008}.main{position:relative}}
@media (max-width:760px){.rail{display:none}.counters{display:none}.brand{min-width:0}.drawer{width:100%}}