:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel2: #1e222b;
  --border: #2a2f3a;
  --text: #e6e8ec;
  --muted: #8b93a2;
  --accent: #4c8bf5;
  --ok: #3fb950;
  --warn: #d29922;
  --err: #f85149;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.hidden { display: none !important; }

/* login */
.login { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login .card { width: 320px; display: flex; flex-direction: column; gap: 10px; }
.login h1 { font-size: 18px; margin: 0 0 8px; }

/* header */
header {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 600; }
.spacer { flex: 1; }
nav { display: flex; gap: 4px; }
nav button {
  background: transparent; border: 1px solid transparent; color: var(--muted);
  padding: 6px 12px; border-radius: 8px; cursor: pointer;
}
nav button.active { background: var(--panel2); color: var(--text); border-color: var(--border); }

main { padding: 16px; max-width: 1200px; margin: 0 auto; }

/* buttons / inputs */
button { font: inherit; cursor: pointer; border-radius: 8px; padding: 7px 12px; border: 1px solid var(--border); background: var(--panel2); color: var(--text); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.ghost { background: transparent; }
button:hover { filter: brightness(1.1); }
input, select { font: inherit; background: var(--panel2); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px; }
label { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; color: var(--muted); }
label input, label select { color: var(--text); }
.chk { flex-direction: row; align-items: center; gap: 6px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.error { color: var(--err); min-height: 18px; }
.hint { color: var(--muted); font-size: 12px; }

/* cards */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.card.narrow { max-width: 560px; margin-bottom: 16px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.stat .num { font-size: 26px; font-weight: 700; }
.stat .lbl { color: var(--muted); font-size: 12px; }
.config-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; max-width: 760px; }
.config-grid div { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--border); padding: 6px 0; }
.config-grid .k { color: var(--muted); }

/* table */
.toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; }
table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 13px; vertical-align: top; }
th { color: var(--muted); font-weight: 500; background: var(--panel2); }
tr:last-child td { border-bottom: none; }
.badge { padding: 1px 7px; border-radius: 6px; font-size: 11px; }
.badge.info { background: rgba(76,139,245,.15); color: var(--accent); }
.badge.warn { background: rgba(210,153,34,.15); color: var(--warn); }
.badge.error { background: rgba(248,81,73,.15); color: var(--err); }
.pill { padding: 1px 7px; border-radius: 6px; font-size: 11px; background: var(--panel2); border: 1px solid var(--border); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.on { background: var(--ok); } .dot.off { background: var(--muted); }

/* modal */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: flex; align-items: flex-start; justify-content: center; padding-top: 6vh; z-index: 50; }
.modal .card { width: 480px; max-height: 88vh; overflow: auto; }
pre { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 12px; overflow: auto; max-height: 380px; font-size: 12px; white-space: pre-wrap; word-break: break-word; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }