:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --text: #e6e8ec;
  --muted: #8b93a1;
  --line: #2a2f3a;
  --accent: #4f9cff;
  --ok: #34d399;
  --warn: #fbbf24;
  --crit: #f87171;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
h1 { font-size: 18px; margin: 0; }
h2 { font-size: 13px; margin: 0 0 8px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.muted { color: var(--muted); font-size: 12px; }

header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px; border-bottom: 1px solid var(--line);
}
.header-right { display: flex; align-items: center; gap: 12px; }
.badge {
  font-size: 12px; padding: 3px 10px; border-radius: 999px;
  background: var(--panel-2); border: 1px solid var(--line);
}
.badge.live { color: var(--ok); border-color: var(--ok); }
.badge.down { color: var(--crit); border-color: var(--crit); }
button, .btn { font: inherit; cursor: pointer; border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2); color: var(--text); padding: 6px 12px; }
button.ghost, a.ghost { background: transparent; }
button.active { background: var(--accent); border-color: var(--accent); color: #05203f; font-weight: 600; }
a.ghost { display: inline-block; border-radius: 8px; border: 1px solid var(--line); color: var(--text); padding: 6px 12px; text-decoration: none; font-size: 13px; }
a.ghost:hover { border-color: var(--accent); }
button[disabled] { opacity: .5; cursor: default; }

.alerts { margin: 16px 20px 0; display: grid; gap: 8px; }
.alert-item { background: rgba(248,113,113,.12); border: 1px solid var(--crit); color: #fecaca; padding: 10px 14px; border-radius: 10px; }

.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px; padding: 20px;
}
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.big { font-size: 30px; font-weight: 700; margin: 4px 0 10px; }
.big span { font-variant-numeric: tabular-nums; }
.gauge { height: 8px; background: var(--panel-2); border-radius: 999px; overflow: hidden; }
.gauge i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .4s ease, background .3s; }
.gauge i.warn { background: var(--warn); }
.gauge i.crit { background: var(--crit); }

.charts { padding: 0 20px 20px; }
.chart-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.ranges { display: flex; gap: 6px; }
figure { margin: 0 0 18px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; }
figcaption { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
canvas { width: 100%; display: block; }

.procs { padding: 0 20px 20px; }
table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
th, td { text-align: left; padding: 8px 14px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
tr:last-child td { border-bottom: 0; }

footer { padding: 16px 20px 32px; }

/* login */
.login-body { display: grid; place-items: center; min-height: 100vh; }
.login-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  padding: 28px; width: min(340px, 90vw); display: grid; gap: 14px;
}
.login-card label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input { font: inherit; padding: 9px 11px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2); color: var(--text); }
.login-card button { padding: 10px; background: var(--accent); border-color: var(--accent); color: #05203f; font-weight: 600; }
.error { color: var(--crit); font-size: 13px; margin: 0; }

/* settings / alerts page */
.settings { padding: 20px; max-width: 760px; }
.settings fieldset { border: 1px solid var(--line); border-radius: 12px; margin: 0 0 16px; padding: 10px 16px 16px; }
.settings legend { padding: 0 6px; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }
.settings .row { display: flex; flex-direction: column; gap: 5px; margin: 12px 0; font-size: 13px; color: var(--muted); }
.settings .check { display: flex; align-items: center; gap: 9px; margin: 10px 0; font-size: 14px; color: var(--text); }
.settings .check input { width: 16px; height: 16px; }
.settings input[type=text], .settings input[type=number], .settings select {
  font: inherit; padding: 7px 9px; border-radius: 7px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--text); max-width: 100%;
}
.settings .row > input { max-width: 420px; }
.settings code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 12px; }

.settings .table-wrap { overflow-x: auto; }
.settings table { width: 100%; background: none; border: 0; border-radius: 0; margin: 8px 0 12px; min-width: 560px; }
.settings th { text-transform: uppercase; font-size: 11px; color: var(--muted); padding: 4px 6px; letter-spacing: .04em; border-bottom: 1px solid var(--line); }
.settings td { padding: 4px 6px; border-bottom: 0; }
.settings td input, .settings td select { width: 100%; }
.settings td .r-del { width: auto; padding: 4px 9px; color: var(--muted); }
.settings .r-value, .settings .r-for { max-width: 92px; }

.settings .actions { display: flex; align-items: center; gap: 12px; margin-top: 8px; flex-wrap: wrap; }
.settings .actions button[type=submit] { background: var(--accent); border-color: var(--accent); color: #05203f; font-weight: 600; padding: 8px 18px; }
.settings #status { font-size: 13px; }
.settings header a { color: var(--muted); }