:root {
  --bg: #0f1216;
  --card: #171b21;
  --line: #262c35;
  --fg: #dfe4ea;
  --muted: #8b97a6;
  --accent: #4ea3ff;
  --ok: #3ddc84;
  --bad: #ff5f56;
  --warn: #ffb648;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

body.centered {
  display: grid;
  place-items: center;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, .mono, pre { font-family: ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace; }
.mono { font-size: 13px; }
.break { word-break: break-all; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.spacer { flex: 1; }
.nowrap { white-space: nowrap; }

/* --- навигация --- */
.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}
.nav a { color: var(--muted); }
.nav a.on { color: var(--fg); font-weight: 600; }
.brand { font-weight: 700; margin-right: 8px; }

main { max-width: 1180px; margin: 0 auto; padding: 24px; }

/* --- карточки --- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 18px;
}
.card h2 { margin: 0 0 14px; font-size: 16px; font-weight: 600; }
.card.login { width: min(360px, 92vw); display: grid; gap: 14px; }
.card.login h1 { margin: 0; font-size: 20px; text-align: center; }

.grid.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}
.stat { display: grid; gap: 4px; align-content: start; }
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.stat .value { font-size: 26px; font-weight: 600; }
.stat .value.small { font-size: 17px; }

/* --- формы --- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 12px;
  align-items: end;
}
.form-grid .wide { grid-column: 1 / -1; }
label { display: grid; gap: 5px; font-size: 13px; color: var(--muted); }
label.check { display: flex; align-items: center; gap: 8px; color: var(--fg); }
label.check input { width: auto; }

input, select, textarea {
  background: #0d1015;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--fg);
  padding: 8px 10px;
  font: inherit;
  width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 1px solid var(--accent); border-color: var(--accent); }
textarea { resize: vertical; }

button, .btn {
  background: var(--accent);
  border: 1px solid transparent;
  border-radius: 7px;
  color: #06121f;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  padding: 8px 14px;
  white-space: nowrap;
}
button:hover, .btn:hover { filter: brightness(1.1); text-decoration: none; }
button.ghost, .btn.ghost { background: transparent; border-color: var(--line); color: var(--fg); }
button.danger { background: transparent; border-color: #4a2a2a; color: var(--bad); }

.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 12px; }
.row form { margin: 0; }

/* --- таблицы --- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
tr.active { background: rgba(78, 163, 255, .07); }
td.row { margin: 0; }

/* --- индикаторы --- */
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--muted); }
.dot.ok { background: var(--ok); box-shadow: 0 0 7px rgba(61, 220, 132, .6); }
.dot.bad { background: var(--bad); }
.dot.off { background: #3a424d; }
.dot.idle { background: #59636f; }

.pill { border-radius: 999px; padding: 3px 10px; font-size: 12px; border: 1px solid var(--line); }
.pill.ok { color: var(--ok); border-color: rgba(61, 220, 132, .35); }
.pill.bad { color: var(--bad); border-color: rgba(255, 95, 86, .35); }

.tag {
  background: #222932; border-radius: 5px; padding: 2px 7px;
  font-size: 12px; color: var(--muted);
}
.lat.good { color: var(--ok); }
.lat.meh { color: var(--warn); }

.flash { border-radius: 8px; padding: 10px 14px; margin-bottom: 16px; font-size: 14px; }
.flash.ok { background: rgba(61, 220, 132, .1); border: 1px solid rgba(61, 220, 132, .3); }
.flash.bad { background: rgba(255, 95, 86, .1); border: 1px solid rgba(255, 95, 86, .3); }

.checks { list-style: none; margin: 0 0 4px; padding: 0; display: grid; gap: 7px; }
.checks li::before { content: "● "; }
.checks li.ok::before { color: var(--ok); }
.checks li.bad::before { color: var(--bad); }

.events { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; font-size: 13px; }
.events li.error { color: var(--bad); }
.events li.warn { color: var(--warn); }

.peer-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.peer-head h2 { margin: 0; }

pre.log {
  background: #0b0e12;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  max-height: 420px;
  overflow: auto;
  font-size: 12.5px;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}
details summary { cursor: pointer; color: var(--muted); margin-bottom: 8px; }