:root {
  --bg: #0e1116; --panel: #161b22; --panel2: #1c2330; --line: #262d3a;
  --text: #e6edf3; --muted: #8b98a8; --brand: #4f8cff; --ok: #2ea043; --warn: #d29922;
  --err: #f85149; --radius: 10px;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.55 -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout { display: flex; min-height: 100vh; }
.sidebar { width: 218px; background: var(--panel); border-right: 1px solid var(--line);
  padding: 18px 12px; position: sticky; top: 0; height: 100vh; flex-shrink: 0; }
.logo { font-weight: 700; font-size: 16px; letter-spacing: .3px; margin: 0 0 4px 8px; }
.logo small { display: block; color: var(--muted); font-weight: 400; font-size: 11px; }
.nav { margin-top: 18px; display: flex; flex-direction: column; gap: 2px; }
.nav a { padding: 9px 12px; border-radius: 8px; color: var(--text); font-size: 14px; }
.nav a:hover { background: var(--panel2); text-decoration: none; }
.nav a.active { background: var(--brand); color: #fff; }
.main { flex: 1; padding: 22px 26px 60px; max-width: 1400px; }
h1 { font-size: 21px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 22px 0 10px; }
.sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; margin-bottom: 16px; }
.grid { display: grid; gap: 14px; }
.grid.c2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid.c3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.spread { display: flex; justify-content: space-between; align-items: center; gap: 10px; }

label { display: block; font-size: 12px; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea { width: 100%; background: var(--panel2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 14px;
  font-family: inherit; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brand); }
textarea { min-height: 70px; resize: vertical; }
.hint { font-size: 11px; color: var(--muted); margin-top: 3px; }

.btn { background: var(--panel2); color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 8px 13px; font-size: 13px; cursor: pointer; }
.btn:hover { border-color: var(--brand); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.ok { background: var(--ok); border-color: var(--ok); color: #fff; }
.btn.danger { background: transparent; border-color: var(--err); color: var(--err); }
.btn.sm { padding: 4px 9px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line);
  vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase;
  letter-spacing: .4px; }
tr:hover td { background: #1a2029; }

.tag { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11.5px;
  border: 1px solid var(--line); background: var(--panel2); color: var(--muted); }
.tag.ok { color: #7ee787; border-color: #23803a; }
.tag.warn { color: #e3b341; border-color: #7a5c14; }
.tag.err { color: #ff7b72; border-color: #7d2a25; }
.tag.info { color: #79c0ff; border-color: #1f4b7a; }

.stat { font-size: 26px; font-weight: 700; }
.stat small { font-size: 12px; color: var(--muted); font-weight: 400; display: block; }

.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 14px; }
.tabs a { padding: 8px 14px; color: var(--muted); border-bottom: 2px solid transparent; }
.tabs a.active { color: var(--text); border-bottom-color: var(--brand); }

.toast { position: fixed; right: 18px; bottom: 18px; background: var(--panel2);
  border: 1px solid var(--line); border-left: 3px solid var(--brand); padding: 11px 15px;
  border-radius: 8px; font-size: 13.5px; z-index: 99; max-width: 380px; }
.toast.err { border-left-color: var(--err); }
.toast.ok { border-left-color: var(--ok); }

.article-body { background: #fff; color: #111; padding: 22px 26px; border-radius: 8px;
  max-height: 640px; overflow: auto; }
.article-body h2 { color: #111; margin-top: 20px; }
.article-body h3 { color: #222; }
.article-body a { color: #0b62d6; }
pre.log { background: #0b0e13; border: 1px solid var(--line); border-radius: 8px; padding: 12px;
  font-size: 12.5px; max-height: 460px; overflow: auto; white-space: pre-wrap; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 12.5px; }
@media (max-width: 860px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; }
  .nav { flex-direction: row; flex-wrap: wrap; }
}