:root{
  --bg:#0a0e16; --bg2:#0f1623; --panel:#141d2e; --panel2:#1a2538;
  --line:#22304a; --txt:#e6edf6; --muted:#8896ad; --muted2:#5e6b82;
  --acc:#34e2a6; --acc2:#38bdf8; --warn:#fbbf24; --bad:#f87171; --good:#34e2a6;
  --pur:#a78bfa; --shadow:0 8px 30px rgba(0,0,0,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:radial-gradient(1200px 800px at 80% -10%,#16243b 0,var(--bg) 55%) fixed;
  color:var(--txt);font-size:14px;-webkit-font-smoothing:antialiased;overflow:hidden;
}
.hidden{display:none!important}
a{color:var(--acc2);text-decoration:none}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#2a3852;border-radius:6px}
::-webkit-scrollbar-track{background:transparent}

/* ---- layout ---- */
#app{display:grid;grid-template-columns:230px 1fr;grid-template-rows:64px 1fr;height:100vh}
#sidebar{grid-row:1/3;background:linear-gradient(180deg,#101a2b,#0c1320);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:18px 14px}
#topbar{grid-column:2;display:flex;align-items:center;gap:18px;padding:0 22px;border-bottom:1px solid var(--line);background:rgba(15,22,35,.6);backdrop-filter:blur(8px)}
#main{grid-column:2;overflow:auto;padding:22px;position:relative}

/* ---- brand + nav ---- */
.brand{display:flex;align-items:center;gap:11px;margin-bottom:26px;padding:0 6px}
.brand .logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--acc),var(--acc2));display:grid;place-items:center;font-weight:800;color:#04201a;box-shadow:0 4px 14px rgba(52,226,166,.4)}
.brand h1{font-size:18px;font-weight:700;letter-spacing:.5px}
.brand small{display:block;color:var(--muted);font-size:10.5px;font-weight:500;letter-spacing:1.5px;text-transform:uppercase}
nav{display:flex;flex-direction:column;gap:3px;flex:1}
nav button{display:flex;align-items:center;gap:11px;background:none;border:none;color:var(--muted);padding:11px 13px;border-radius:10px;cursor:pointer;font-size:14px;font-weight:500;text-align:left;transition:.15s;width:100%}
nav button:hover{background:var(--panel);color:var(--txt)}
nav button.active{background:linear-gradient(90deg,rgba(52,226,166,.18),rgba(56,189,248,.06));color:var(--txt);box-shadow:inset 2px 0 0 var(--acc)}
nav button .ic{font-size:17px;width:20px;text-align:center}
.nav-badge{margin-left:auto;background:var(--acc);color:#042;border-radius:10px;font-size:11px;font-weight:700;padding:1px 7px}
.sb-foot{font-size:11px;color:var(--muted2);padding:8px 6px;display:flex;align-items:center;gap:7px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--bad);box-shadow:0 0 8px var(--bad)}
.dot.on{background:var(--good);box-shadow:0 0 9px var(--good)}

/* ---- topbar tiles ---- */
.view-title{font-size:19px;font-weight:700;margin-right:auto}
.tiles{display:flex;gap:12px}
.tile{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:8px 15px;min-width:96px}
.tile .v{font-size:20px;font-weight:700;line-height:1.1}
.tile .l{font-size:10.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px;margin-top:2px}
.tile .v.acc{color:var(--acc)} .tile .v.cy{color:var(--acc2)} .tile .v.wn{color:var(--warn)}

/* ---- cards/panels ---- */
.panel{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.panel-h{display:flex;align-items:center;gap:10px;padding:15px 18px;border-bottom:1px solid var(--line);font-weight:600}
.panel-h .sub{margin-left:auto;color:var(--muted);font-weight:500;font-size:12px}
.grid{display:grid;gap:16px}
.cols-2{grid-template-columns:1fr 1fr}
.cols-3{grid-template-columns:repeat(3,1fr)}
@media(max-width:1100px){.cols-2,.cols-3{grid-template-columns:1fr}}

/* ---- node cards ---- */
.nodes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px}
.ncard{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:15px;padding:15px;position:relative;transition:.15s;cursor:pointer}
.ncard:hover{border-color:#33507a;transform:translateY(-2px)}
.ncard.owned{box-shadow:inset 0 0 0 1px rgba(52,226,166,.25)}
.ncard .row1{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.avatar{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;font-weight:800;font-size:14px;color:#06121f;flex-shrink:0}
.ncard .nm{font-weight:700;font-size:15px;line-height:1.15;display:flex;align-items:center;gap:6px}
.ncard .id{font-size:11.5px;color:var(--muted);font-family:ui-monospace,monospace}
.badge{font-size:10px;font-weight:700;padding:2px 7px;border-radius:8px;text-transform:uppercase;letter-spacing:.4px}
.badge.own{background:rgba(52,226,166,.16);color:var(--acc)}
.badge.foreign{background:rgba(167,139,250,.16);color:var(--pur)}
.badge.hw{background:rgba(56,189,248,.13);color:var(--acc2)}
.badge.off{background:rgba(248,113,113,.14);color:var(--bad)}
.metrics{display:grid;grid-template-columns:1fr 1fr;gap:9px 14px;font-size:12.5px}
.metrics .m .k{color:var(--muted);font-size:10.5px;text-transform:uppercase;letter-spacing:.4px}
.metrics .m .val{font-weight:600;font-size:14px}
.batt{height:7px;border-radius:5px;background:#23304a;overflow:hidden;margin-top:5px}
.batt > i{display:block;height:100%;border-radius:5px}
.ina{margin-top:11px;padding-top:11px;border-top:1px dashed var(--line);font-size:12px;display:flex;flex-wrap:wrap;gap:6px}
.chip{background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:3px 8px;font-size:11.5px}
.chip b{color:var(--acc)}

/* ---- messages ---- */
.msg-wrap{display:grid;grid-template-columns:1fr 360px;gap:16px;height:calc(100vh - 130px)}
@media(max-width:1000px){.msg-wrap{grid-template-columns:1fr}}
.feed{display:flex;flex-direction:column;overflow:hidden}
.feed-body{flex:1;overflow:auto;padding:14px 16px;display:flex;flex-direction:column;gap:9px}
.bubble{max-width:78%;padding:9px 13px;border-radius:13px;background:var(--panel2);border:1px solid var(--line);font-size:13.5px;line-height:1.4}
.bubble .meta{font-size:10.5px;color:var(--muted);margin-bottom:3px;display:flex;gap:8px}
.bubble.tx{align-self:flex-end;background:linear-gradient(135deg,rgba(52,226,166,.2),rgba(56,189,248,.12));border-color:#2c6a5a}
.bubble.tx .meta{color:#9fe9cf}
.compose{display:flex;gap:9px;padding:13px;border-top:1px solid var(--line)}
.compose select,.compose input{background:var(--bg);border:1px solid var(--line);color:var(--txt);border-radius:10px;padding:10px 12px;font-size:13.5px}
.compose input{flex:1}
.compose button{background:linear-gradient(135deg,var(--acc),var(--acc2));color:#04201a;border:none;border-radius:10px;padding:0 18px;font-weight:700;cursor:pointer}
.lf-item{padding:9px 12px;border-bottom:1px solid var(--line);font-size:13px}
.lf-item .h{display:flex;gap:8px;font-size:11px;color:var(--muted);margin-bottom:3px}
.lf-item .h b{color:var(--acc2)}

/* ---- passing through ---- */
.pt-item{display:flex;align-items:center;gap:11px;padding:10px 14px;border-bottom:1px solid var(--line)}
.pt-item:last-child{border:none}
.pt-item .tm{margin-left:auto;font-size:11px;color:var(--muted)}

/* ---- map ---- */
#map{height:calc(100vh - 130px);border-radius:16px;border:1px solid var(--line);overflow:hidden}
.leaflet-popup-content-wrapper,.leaflet-popup-tip{background:var(--panel);color:var(--txt);box-shadow:var(--shadow)}
.leaflet-popup-content{margin:12px 14px;font-size:13px}
.leaflet-popup-content b{color:var(--acc)}
.leaflet-container{background:#0c1322}
.mk{border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 2px rgba(0,0,0,.4)}

/* ---- detail drawer ---- */
#drawer{position:fixed;top:0;right:0;width:560px;max-width:94vw;height:100vh;background:linear-gradient(180deg,var(--panel),var(--bg2));border-left:1px solid var(--line);box-shadow:-20px 0 50px rgba(0,0,0,.5);z-index:60;transform:translateX(100%);transition:.25s;overflow:auto;padding:22px}
#drawer.open{transform:none}
#drawer .x{position:absolute;top:18px;right:20px;background:var(--panel2);border:1px solid var(--line);color:var(--txt);width:34px;height:34px;border-radius:9px;cursor:pointer;font-size:17px}
.field{margin:10px 0}
.field label{display:block;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:5px}
.field input[type=text]{width:100%;background:var(--bg);border:1px solid var(--line);color:var(--txt);border-radius:9px;padding:9px 11px}
.toggle{display:flex;align-items:center;gap:9px;margin:8px 0;font-size:13.5px}
.toggle input{width:38px;height:21px;-webkit-appearance:none;appearance:none;background:#2a3852;border-radius:11px;position:relative;cursor:pointer;transition:.2s}
.toggle input:checked{background:var(--acc)}
.toggle input::after{content:'';position:absolute;width:17px;height:17px;border-radius:50%;background:#fff;top:2px;left:2px;transition:.2s}
.toggle input:checked::after{left:19px}
.btn{background:var(--panel2);border:1px solid var(--line);color:var(--txt);border-radius:10px;padding:9px 15px;font-weight:600;cursor:pointer;font-size:13px}
.btn:hover{border-color:#33507a}
.btn.acc{background:linear-gradient(135deg,var(--acc),var(--acc2));color:#04201a;border:none}
.btn.sm{padding:5px 11px;font-size:12px}

/* ---- topology ---- */
#topo{width:100%;height:calc(100vh - 130px);border-radius:16px;border:1px solid var(--line);background:radial-gradient(800px 500px at 50% 30%,#13203a,#0a1120)}

/* ---- settings ---- */
.set-row{display:flex;align-items:center;gap:12px;padding:13px 18px;border-bottom:1px solid var(--line)}
.set-row:last-child{border:none}
.set-row .k{color:var(--muted);width:200px;font-size:13px}
.set-row .v{font-weight:600}
.kbd{font-family:ui-monospace,monospace;background:var(--bg);border:1px solid var(--line);padding:2px 7px;border-radius:6px;font-size:12px}

/* ---- login ---- */
#login{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:radial-gradient(900px 600px at 50% 20%,#16243b,#070b12)}
.login-card{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:20px;padding:38px;width:360px;box-shadow:var(--shadow);text-align:center}
.login-card .logo{width:56px;height:56px;border-radius:15px;background:linear-gradient(135deg,var(--acc),var(--acc2));display:grid;place-items:center;font-weight:800;font-size:24px;color:#04201a;margin:0 auto 18px}
.login-card h2{font-size:22px;margin-bottom:5px}
.login-card p{color:var(--muted);font-size:13px;margin-bottom:22px}
.login-card input{width:100%;background:var(--bg);border:1px solid var(--line);color:var(--txt);border-radius:11px;padding:13px;font-size:15px;margin-bottom:13px;text-align:center}
.login-card button{width:100%;background:linear-gradient(135deg,var(--acc),var(--acc2));color:#04201a;border:none;border-radius:11px;padding:13px;font-weight:700;font-size:15px;cursor:pointer}
.login-err{color:var(--bad);font-size:13px;height:18px;margin-bottom:8px}

/* ---- toast ---- */
#toasts{position:fixed;bottom:22px;right:22px;z-index:90;display:flex;flex-direction:column;gap:10px}
.toast{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--acc);border-radius:12px;padding:12px 16px;box-shadow:var(--shadow);min-width:240px;animation:slidein .25s}
.toast.warn{border-left-color:var(--warn)} .toast.bad{border-left-color:var(--bad)}
.toast .t{font-weight:700;font-size:13.5px} .toast .d{color:var(--muted);font-size:12px;margin-top:2px}
@keyframes slidein{from{transform:translateX(40px);opacity:0}}
#connDot2{display:none}
.empty{color:var(--muted2);text-align:center;padding:40px;font-size:13px}

/* ===================== MOBILE ===================== */
@media(max-width:760px){
  html,body{max-width:100%;overflow-x:hidden}
  body{overflow-y:auto}
  /* let flex/grid children actually shrink so nothing forces horizontal scroll */
  #app,#main,#topbar,.panel,.tiles,.view-title,.metrics,.ncard,.bubble,.set-row .v{min-width:0}
  #app{grid-template-columns:1fr;grid-template-rows:54px 1fr 62px;height:100dvh}
  #main{overflow-x:hidden}
  #topbar{overflow:hidden}
  .view-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-shrink:1}
  .ncard,.bubble,.chip,.lf-item,.id{overflow-wrap:anywhere}
  .set-row{flex-wrap:wrap;gap:6px 10px}
  .set-row .k{width:auto;min-width:110px;flex:1 1 auto}
  /* sidebar -> bottom tab bar */
  #sidebar{grid-row:3;grid-column:1;flex-direction:row;border-right:none;border-top:1px solid var(--line);
    padding:0;background:#0c1320;z-index:50;position:relative}
  .brand,.sb-foot{display:none}
  #sidebar nav{flex-direction:row;gap:0;width:100%}
  #sidebar nav button{flex:1;flex-direction:column;gap:3px;font-size:9.5px;padding:8px 0;border-radius:0;
    justify-content:center;align-items:center;font-weight:600}
  #sidebar nav button.active{background:none;box-shadow:inset 0 2px 0 var(--acc);color:var(--acc)}
  #sidebar nav button .ic{font-size:19px;width:auto}
  .nav-badge{position:absolute;top:4px;margin:0;transform:translateX(13px)}
  /* topbar */
  #topbar{grid-column:1;grid-row:1;padding:0 14px;gap:10px}
  .view-title{font-size:16px}
  #connDot2{display:block;flex-shrink:0}
  .tiles{gap:8px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .tiles::-webkit-scrollbar{display:none}
  .tile{min-width:72px;padding:6px 11px;flex-shrink:0}
  .tile .v{font-size:17px} .tile .l{font-size:9px}
  /* main */
  #main{grid-column:1;grid-row:2;padding:13px}
  .grid.cols-2,.grid.cols-3{grid-template-columns:1fr}
  .nodes-grid{grid-template-columns:1fr}
  /* messages stack */
  .msg-wrap{grid-template-columns:1fr;height:auto;gap:13px}
  .feed{height:62vh}
  .compose{flex-wrap:wrap}
  .compose select{flex:1;min-width:46%}
  .compose input{flex-basis:100%;order:3}
  .compose button{order:4;flex:1}
  /* map / topo / mini-map */
  #map,#topo{height:74vh}
  #miniMap{height:340px!important}
  /* drawer full width */
  #drawer{width:100vw;padding:18px}
  #drawer .field input[type=text]{font-size:16px}  /* avoid iOS zoom */
  .login-card{width:90vw}
  #toasts{left:12px;right:12px;bottom:74px}
  .toast{min-width:0}
}
@media(max-width:760px) and (display-mode:standalone){
  #topbar{padding-top:env(safe-area-inset-top)}
  #sidebar{padding-bottom:env(safe-area-inset-bottom)}
}
.spin{display:inline-block;width:15px;height:15px;border:2px solid var(--line);border-top-color:var(--acc);border-radius:50%;animation:sp 1s linear infinite;vertical-align:-2px}
@keyframes sp{to{transform:rotate(360deg)}}