:root{
  --bg:#0e1117; --panel:#161b22; --panel2:#1c2330; --line:#283040;
  --txt:#e6edf3; --muted:#8b97a7; --accent:#3fb6ff; --accent2:#1f6feb;
  --ok:#3fb950; --bad:#f85149; --warn:#d29922;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--txt);
  font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.muted{color:var(--muted)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}

.topbar{display:flex;justify-content:space-between;align-items:center;
  padding:14px 28px;background:var(--panel);border-bottom:1px solid var(--line)}
.brand{font-weight:600;font-size:18px}
.brand .logo{font-size:20px}
.topbar nav a{margin-left:20px;color:var(--muted);font-weight:500}
.topbar nav a:hover{color:var(--txt);text-decoration:none}
.topbar .logout{color:var(--bad)}

.wrap{max-width:1180px;margin:0 auto;padding:28px}
.foot{text-align:center;padding:24px;font-size:12px}

.pagehead{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
.pagehead h1{margin:0;font-size:24px}
.btn-primary{background:var(--accent2);color:#fff;padding:10px 18px;border-radius:8px;
  font-weight:600}
.btn-primary:hover{background:#388bfd;text-decoration:none}

.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.tile{background:linear-gradient(160deg,var(--panel2),var(--panel));
  border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.tile .num{font-size:32px;font-weight:700}
.tile .num .of{font-size:18px;color:var(--muted);font-weight:500}
.tile .lbl{color:var(--muted);font-size:13px;margin-top:4px}

.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:8px 20px 16px;margin-bottom:24px}
.card h2{font-size:16px;margin:16px 4px}
table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;
  color:var(--muted);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--line)}
td{padding:10px;border-bottom:1px solid #20262f}
tbody tr:hover{background:#1a212c}
td.empty{text-align:center;color:var(--muted);padding:26px}
.keys span{margin-right:4px}

.badge{font-size:12px;padding:3px 9px;border-radius:20px;font-weight:600;
  background:#222b38;color:var(--muted)}
.st-active{background:rgba(63,185,80,.15);color:var(--ok)}
.st-provisioning,.st-creating,.st-bootstrapping,.st-registering{background:rgba(210,153,34,.15);color:var(--warn)}
.st-unreachable,.st-retired,.st-degraded,.st-draining{background:rgba(248,81,73,.15);color:var(--bad)}
.role{font-size:12px;padding:3px 9px;border-radius:6px;font-weight:600;background:#222b38}
.role-relay{color:#79c0ff}.role-exit{color:#d2a8ff}.role-direct{color:#7ee787}
.flag{font-weight:600;text-transform:uppercase;font-size:12px;color:var(--accent)}

.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:5px}
.dot.ok{background:var(--ok)}.dot.bad{background:var(--bad)}

.login{max-width:340px;margin:60px auto;background:var(--panel);
  border:1px solid var(--line);border-radius:12px;padding:28px}
.login h1{font-size:20px;margin:0 0 18px}
.login label{display:block;font-size:13px;color:var(--muted);margin-bottom:14px}
.login input{display:block;width:100%;margin-top:6px;padding:10px;border-radius:8px;
  border:1px solid var(--line);background:var(--bg);color:var(--txt);font-size:15px}
.login button{width:100%;margin-top:8px;padding:11px;border:0;border-radius:8px;
  background:var(--accent2);color:#fff;font-weight:600;font-size:15px;cursor:pointer}
.login button:hover{background:#388bfd}
.alert{background:rgba(248,81,73,.12);color:var(--bad);border:1px solid rgba(248,81,73,.3);
  padding:10px 12px;border-radius:8px;margin-bottom:16px;font-size:14px}

/* --- админ-панель: пользователи/тарифы/действия --- */
.bad-num{color:var(--bad)}
.tiles+.tiles{margin-top:-8px}

.search{display:flex;gap:8px}
.search input{padding:8px 12px;border-radius:8px;border:1px solid var(--line);
  background:var(--bg);color:var(--txt);font-size:14px;min-width:240px}
.search button{padding:8px 16px;border:0;border-radius:8px;background:var(--accent2);
  color:#fff;font-weight:600;cursor:pointer}
.search button:hover{background:#388bfd}

.pager{display:flex;gap:18px;align-items:center;justify-content:center;padding:8px 0 24px}

.ok-alert{background:rgba(63,185,80,.12);color:var(--ok);border:1px solid rgba(63,185,80,.3);
  padding:10px 12px;border-radius:8px;margin-bottom:18px;font-size:14px}

table.kv{width:auto}
table.kv th{text-transform:none;letter-spacing:0;font-size:14px;color:var(--muted);
  padding:8px 24px 8px 4px;border:0;vertical-align:top}
table.kv td{border:0;padding:8px 4px}

.actions{display:flex;gap:10px;flex-wrap:wrap;margin:4px 4px 16px}
.actions form{margin:0}
.btn{padding:8px 16px;border:1px solid var(--line);border-radius:8px;background:var(--panel2);
  color:var(--txt);font-weight:600;font-size:14px;cursor:pointer}
.btn:hover{border-color:var(--accent)}
.btn.sm{padding:5px 11px;font-size:13px}
.btn-danger{color:var(--bad);border-color:rgba(248,81,73,.4)}
.btn-danger:hover{background:rgba(248,81,73,.12);border-color:var(--bad)}

.plan-form{display:flex;gap:16px;align-items:flex-end;flex-wrap:wrap;margin:4px}
.plan-form label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}
.plan-form select,.plan-form input{padding:8px 10px;border-radius:8px;border:1px solid var(--line);
  background:var(--bg);color:var(--txt);font-size:14px}
.plan-form input[type=number]{width:120px}
.role-relay{color:#79c0ff}.role-direct{color:#7ee787}

/* --- мониторинг нод (графики uPlot) --- */
.metrics-bar{display:flex;justify-content:space-between;align-items:center;
  gap:16px;flex-wrap:wrap;margin:6px 4px 16px}
.rangesw{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.rangesw button{background:var(--panel2);color:var(--muted);border:0;
  padding:7px 14px;font-size:13px;font-weight:600;cursor:pointer}
.rangesw button+button{border-left:1px solid var(--line)}
.rangesw button:hover{color:var(--txt)}
.rangesw button.active{background:var(--accent2);color:#fff}
.chart{margin:8px 0 18px}
.chart .u-title{color:var(--muted);font-size:13px;font-weight:600}
/* uPlot легенда/значения под тёмную тему */
.uplot,.uplot *{color:var(--txt)}
.uplot .u-legend{color:var(--muted);font-size:12px}
/* спарклайны на дашборде/в списке нод */
.spark{display:inline-block;vertical-align:middle}
.bw-now{font-variant-numeric:tabular-nums;color:var(--muted);font-size:12px}
td a.nodelink{color:var(--accent)}

/* --- аптайм / простои нод (SPEC-0004) --- */
.uptime-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:4px 4px 18px}
.uptime-grid .tile .num{font-size:26px}
.timeline-wrap{margin:0 4px 8px}
.timeline{display:block;width:100%;border-radius:6px;border:1px solid var(--line)}
.flag-lbl{font-size:13px;color:var(--muted);margin-left:6px;font-weight:500}