:root{
  --bg:#0f1419; --panel:#171d26; --panel2:#1d2530; --line:#2a3340;
  --txt:#dfe6ee; --muted:#8896a6; --accent:#3b9eff;
  --ok:#33c989; --warn:#ffb454; --err:#ff5d5d; --off:#55626f;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--txt);
  font:14px/1.45 -apple-system,Segoe UI,Roboto,Arial,sans-serif}
a{color:var(--accent);text-decoration:none}
.muted{color:var(--muted);font-weight:400}
.hidden{display:none!important}

/* login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center}
.login-card{background:var(--panel);padding:32px;border-radius:14px;width:320px;
  border:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.login-card h1{margin:0;font-size:22px}
.login-card input{padding:11px;border-radius:8px;border:1px solid var(--line);
  background:var(--panel2);color:var(--txt);font-size:15px}
.login-card button{padding:11px;border:0;border-radius:8px;background:var(--accent);
  color:#fff;font-size:15px;cursor:pointer}
.err{color:var(--err);font-size:13px}

/* layout */
.topbar{display:flex;align-items:center;gap:18px;padding:12px 20px;
  background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand{font-weight:700;font-size:16px}
.heartbeat{flex:1;display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--muted)}
.heartbeat b{color:var(--txt)}
.logout{font-size:13px}
.wrap{max-width:1200px;margin:18px auto;padding:0 16px;display:flex;flex-direction:column;gap:18px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.card .n{font-size:26px;font-weight:700}
.card .l{color:var(--muted);font-size:12.5px;margin-top:2px}

/* panels & grid */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.panel-head{display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;border-bottom:1px solid var(--line)}
.panel-head h2{margin:0;font-size:15px}
.filter{padding:7px 10px;border-radius:8px;border:1px solid var(--line);
  background:var(--panel2);color:var(--txt);width:240px}
table.grid{width:100%;border-collapse:collapse}
.grid th{ text-align:left;padding:9px 12px;color:var(--muted);font-weight:600;
  font-size:12px;border-bottom:1px solid var(--line);background:var(--panel2)}
.grid td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
.grid tr:hover td{background:#19212c;cursor:pointer}
.name-main{font-weight:600}
.name-sub{color:var(--muted);font-size:12px}
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11.5px;font-weight:600}
.b-on{background:rgba(51,201,137,.16);color:var(--ok)}
.b-off{background:rgba(85,98,111,.2);color:var(--off)}
.b-warn{background:rgba(255,180,84,.16);color:var(--warn)}
.b-err{background:rgba(255,93,93,.16);color:var(--err)}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--off)}
.dot.live{background:var(--ok);box-shadow:0 0 0 0 rgba(51,201,137,.6);animation:pulse 1.6s infinite}
.dot.warn{background:var(--warn)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(51,201,137,.5)}70%{box-shadow:0 0 0 7px rgba(51,201,137,0)}100%{box-shadow:0 0 0 0 rgba(51,201,137,0)}}

/* toggle */
.sw{position:relative;display:inline-block;width:42px;height:22px}
.sw input{display:none}
.sl{position:absolute;inset:0;background:var(--off);border-radius:22px;transition:.2s;cursor:pointer}
.sl:before{content:"";position:absolute;width:16px;height:16px;left:3px;top:3px;
  background:#fff;border-radius:50%;transition:.2s}
.sw input:checked+.sl{background:var(--accent)}
.sw input:checked+.sl:before{transform:translateX(20px)}

.icon-btn{background:none;border:0;color:var(--muted);cursor:pointer;font-size:13px;padding:2px 5px}
.icon-btn:hover{color:var(--accent)}

/* events */
.events{max-height:280px;overflow:auto;padding:6px 0;font-family:ui-monospace,Consolas,monospace;font-size:12.5px}
.ev{display:flex;gap:10px;padding:4px 16px}
.ev .t{color:var(--muted);white-space:nowrap}
.ev.l-ERROR .m{color:var(--err)}
.ev.l-WARN .m{color:var(--warn)}
.ev.l-INFO .m{color:var(--txt)}

/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;
  align-items:center;justify-content:center;z-index:20;padding:20px}
.modal-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;
  width:680px;max-width:100%;max-height:86vh;overflow:auto;padding:22px;position:relative}
.modal-close{position:absolute;right:14px;top:10px;background:none;border:0;
  color:var(--muted);font-size:24px;cursor:pointer}
.modal h2{margin:0 0 12px}
.kv{display:grid;grid-template-columns:160px 1fr;gap:6px 12px;margin:10px 0}
.kv div:nth-child(odd){color:var(--muted)}
.field{display:flex;flex-direction:column;gap:5px;margin:8px 0}
.field input{padding:9px;border-radius:8px;border:1px solid var(--line);
  background:var(--panel2);color:var(--txt)}
.btn{padding:9px 14px;border:0;border-radius:8px;background:var(--accent);color:#fff;cursor:pointer}
.btn.sec{background:var(--panel2);border:1px solid var(--line);color:var(--txt)}
.minigrid{width:100%;border-collapse:collapse;margin-top:6px}
.minigrid th,.minigrid td{padding:6px 8px;border-bottom:1px solid var(--line);text-align:left;font-size:12.5px}

/* toast */
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);
  background:var(--panel2);border:1px solid var(--line);padding:10px 18px;border-radius:10px;z-index:30}

@media(max-width:760px){.cards{grid-template-columns:repeat(2,1fr)}}

/* curves */
.curveblock{margin:8px 0;border:1px solid var(--line);border-radius:10px;padding:8px 10px;background:var(--panel2)}
.curvehead{display:flex;align-items:center;gap:8px;font-size:12.5px;margin-bottom:6px}
.curvehead .spacer{flex:1}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:center;gap:5px;padding:3px 8px;border-radius:16px;
  border:1px solid var(--line);background:#141a22;color:var(--muted);font-size:12px;cursor:pointer;user-select:none}
.chip.on{background:rgba(59,158,255,.14);border-color:rgba(59,158,255,.4);color:var(--txt)}
.chip.lock{cursor:default;opacity:.85}
.chip input{margin:0}