:root{
  --bg:#f2f5fa; --card:#fff; --ink:#18202e; --muted:#6b7484; --line:#e4e9f2;
  --accent:#2f6df6; --accent-2:#1d4fd7; --ok:#128a4b; --ok-bg:#e6f7ee;
  --warn:#a85c00; --warn-bg:#fff4e0; --bad:#c02b2b; --bad-bg:#fdecec;
  --side:#0d1626; --side-2:#131f34; --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink);
  font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:24px;margin:0 0 4px}
h2{font-size:16px;margin:0}
p{margin:8px 0}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px}
.muted{color:var(--muted)}
.small{font-size:12px}
.nowrap{white-space:nowrap}
.text-bad{color:var(--bad);font-weight:600}
.pad-top{padding-top:12px}
.empty{color:var(--muted);text-align:center;padding:26px 0}

/* shell */
.shell{display:flex;min-height:100vh}
.side{
  width:236px;flex:0 0 236px;background:var(--side);color:#c8d2e4;
  display:flex;flex-direction:column;padding:20px 14px;position:sticky;top:0;height:100vh;
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 20px}
.brand.big{padding:0 0 18px}
.logo{
  width:38px;height:38px;border-radius:10px;flex:0 0 38px;
  background:linear-gradient(135deg,#3d7bff,#1d4fd7);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;letter-spacing:.5px;
}
.brand-name{font-weight:700;color:#fff;font-size:15px;line-height:1.2}
.brand-sub{font-size:11px;color:#7d8ca6;text-transform:uppercase;letter-spacing:.08em}
.side nav{display:flex;flex-direction:column;gap:2px;margin-top:4px}
.side nav a{
  color:#b9c5da;padding:9px 12px;border-radius:9px;font-weight:500;
}
.side nav a:hover{background:var(--side-2);color:#fff;text-decoration:none}
.side nav a.on{background:#1c2c49;color:#fff;box-shadow:inset 3px 0 0 var(--accent)}
.side-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:12px;color:#7d8ca6;padding:12px 10px 2px}
.dot-live{width:8px;height:8px;border-radius:50%;background:#38c172;box-shadow:0 0 0 3px rgba(56,193,114,.15)}
.dot-live.off{background:#d9534f;box-shadow:0 0 0 3px rgba(217,83,79,.15)}

.main{flex:1;min-width:0;padding:26px 30px 48px}
.top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px}
.top .sub{color:var(--muted);margin:2px 0 0}
.top-right{display:flex;align-items:center;gap:12px}
.who{font-weight:600;color:var(--ink)}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;margin-bottom:16px}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
.link{font-size:13px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:1100px){.two-col{grid-template-columns:1fr}}

/* kpi */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.kpi span{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.kpi b{display:block;font-size:26px;line-height:1.25;margin-top:4px}
.kpi i{display:block;color:var(--muted);font-style:normal;font-size:12px;margin-top:2px}
@media(max-width:1000px){.kpis{grid-template-columns:repeat(2,1fr)}}

/* host cards */
.grid-hosts{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px;margin-bottom:18px}
.host-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;color:inherit;display:block;transition:border-color .15s, box-shadow .15s;
}
.host-card:hover{text-decoration:none;border-color:#c9d6ea;box-shadow:0 4px 18px rgba(20,40,80,.06)}
.host-card.down{border-color:#f3c9c9;background:#fffbfb}
.host-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.host-name{font-weight:700;font-size:15px}
.host-role{color:var(--muted);font-size:12px;margin-top:2px}
.host-foot{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-top:14px;border-top:1px dashed var(--line);padding-top:10px}
.host-err{color:var(--bad);font-size:12px;margin-top:10px;word-break:break-word}
.state{font-size:12px;padding:3px 9px;border-radius:20px;font-weight:600;white-space:nowrap}
.state.ok{background:var(--ok-bg);color:var(--ok)}
.state.bad{background:var(--bad-bg);color:var(--bad)}

/* meters */
.meters{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.meter-top{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.meter-top b{color:var(--ink)}
.bar{height:7px;border-radius:7px;background:#edf1f8;margin:6px 0 4px;overflow:hidden}
.bar i{display:block;height:100%;background:#3d7bff;border-radius:7px}
.bar i.warn{background:#e6982c}
.bar i.crit{background:#d9534f}
.meter-sub{font-size:11px;color:var(--muted)}

/* alerts */
.alerts{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.alert{padding:10px 14px;border-radius:10px;font-size:13px;border:1px solid}
.alert.crit{background:var(--bad-bg);border-color:#f5c6c6;color:#7f1d1d}
.alert.warn{background:var(--warn-bg);border-color:#f3ddb7;color:#7a4a00}

/* tables */
.tbl{width:100%;border-collapse:collapse}
.tbl th{
  text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.05em;
  color:var(--muted);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.tbl td{padding:10px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl.compact td{padding:7px 10px}
.tbl.compact th{padding:6px 10px}
.tbl tbody tr:hover{background:#fafcff}
.scroll{overflow-x:auto;max-width:100%}
.scroll.tall{max-height:560px;overflow-y:auto}

/* tags & buttons */
.tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11.5px;font-weight:600;background:#eef1f7;color:#4b5563;white-space:nowrap}
.tag.ok{background:var(--ok-bg);color:var(--ok)}
.tag.bad{background:var(--bad-bg);color:var(--bad)}
.tag.warn{background:var(--warn-bg);color:var(--warn)}
.chips{display:flex;gap:6px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  background:var(--accent);color:#fff;border:1px solid var(--accent);
  padding:8px 14px;border-radius:9px;font:inherit;font-weight:600;font-size:13px;cursor:pointer;
}
.btn:hover{background:var(--accent-2);border-color:var(--accent-2);text-decoration:none;color:#fff}
.btn.sm{padding:5px 10px;font-size:12px;border-radius:8px}
.btn.ghost{background:#fff;color:#41506a;border-color:#d6deec}
.btn.ghost:hover{background:#f4f7fc;color:#18202e}
.btn.danger{background:#fff;color:var(--bad);border-color:#f0c9c9}
.btn.danger:hover{background:var(--bad);border-color:var(--bad);color:#fff}
.btn.on{background:#e8f0ff;border-color:#bcd2ff;color:var(--accent-2)}
.btn.wide{width:100%}
.acts{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.acts form{display:inline-block;margin:0}

/* forms */
.toolbar{display:flex;gap:8px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.search{
  padding:8px 12px;border:1px solid #d6deec;border-radius:9px;background:#fff;font:inherit;min-width:220px;
}
.search.wide{min-width:340px;flex:1;max-width:520px}
.search:focus,input:focus,select:focus{outline:2px solid #c7d9ff;border-color:#9fbdfa}
.mini{padding:5px 6px;border:1px solid #d6deec;border-radius:7px;background:#fff;font-size:12px}
.form{display:flex;flex-direction:column;gap:14px;max-width:420px}
.form label{display:flex;flex-direction:column;gap:5px;font-weight:600;font-size:13px}
.form input{
  padding:10px 12px;border:1px solid #d6deec;border-radius:9px;font:inherit;font-weight:400;background:#fff;
}
.form small{font-weight:400;color:var(--muted);font-size:11.5px}

/* flash */
.flash{padding:10px 14px;border-radius:10px;margin-bottom:14px;font-size:13px;border:1px solid}
.flash.ok{background:var(--ok-bg);border-color:#bfe8d1;color:#0f6b3d}
.flash.bad{background:var(--bad-bg);border-color:#f3c9c9;color:#8c1f1f}
.flash.warn{background:var(--warn-bg);border-color:#f3ddb7;color:#7a4a00}

/* server detail */
.stat-row{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-bottom:16px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px}
.stat span{display:block;font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.stat b{display:block;font-size:19px;margin-top:3px}
.stat i{display:block;font-style:normal;color:var(--muted);font-size:11.5px;margin-top:2px}
@media(max-width:1200px){.stat-row{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.stat-row{grid-template-columns:repeat(2,1fr)}}
.row{display:flex;gap:8px;align-items:center}

/* log */
pre.log{
  background:#0f1726;color:#cfe0ff;border-radius:10px;padding:14px;margin:0;
  font:12px/1.55 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  max-height:480px;overflow:auto;white-space:pre-wrap;word-break:break-word;
}

/* pager */
.pager{display:flex;gap:6px;flex-wrap:wrap;margin:4px 0 16px}
.pg{padding:6px 11px;border-radius:8px;border:1px solid #d6deec;background:#fff;color:#41506a;font-size:13px}
.pg.on{background:var(--accent);border-color:var(--accent);color:#fff}
.pg:hover{text-decoration:none}

/* quick links */
.quick{display:flex;flex-direction:column}
.quick a{padding:9px 0;border-bottom:1px dashed var(--line);font-weight:500}
.quick a:last-child{border-bottom:0}

/* auth */
.auth-body{background:radial-gradient(1200px 600px at 20% 0%,#1b2d4d 0%,#0d1626 45%,#0a1220 100%);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.auth-card{background:#fff;border-radius:16px;padding:28px 30px;width:100%;max-width:420px;box-shadow:0 24px 80px rgba(0,0,0,.35)}
.auth-card h1{margin:6px 0 2px;font-size:22px}
.auth-card .btn{margin-top:4px}

@media(max-width:900px){
  .shell{flex-direction:column}
  .side{width:100%;flex:none;height:auto;position:static;flex-direction:row;flex-wrap:wrap;align-items:center;padding:12px}
  .side nav{flex-direction:row;overflow-x:auto;margin:0;gap:4px;flex:1}
  .side nav a{white-space:nowrap;padding:7px 10px}
  .side-foot{display:none}
  .brand{padding:0 10px 0 0}
  .main{padding:18px 16px 40px}
  .top{flex-direction:column}
  .search.wide{min-width:0}
}