/* ---- base ---- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, sans-serif;
  background: #0f1115; color: #d8dde3;
  font-size: 14px; line-height: 1.45;
}
a { color: #7eb8ff; text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: "JetBrains Mono", Menlo, Consolas, monospace; font-size: 0.9em; color: #b8c5d6; }
.muted { color: #7a8699; font-weight: normal; }

/* ---- topbar / nav ---- */
.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  padding: 0.6rem 1.2rem; border-bottom: 1px solid #1f2530;
  background: #161a22;
}
.brand a { font-weight: 700; color: #e4e9f0; font-size: 1.05rem; }
.nav { display: flex; gap: 1rem; flex: 1; }
.nav a { color: #aab3c2; }
.nav a:hover { color: #fff; }
.user { color: #7a8699; }
.user .u { margin-right: 0.5rem; }
.user .logout { color: #d57474; margin-left: 0.5rem; }

.content { padding: 1.2rem 1.5rem; max-width: 1400px; margin: 0 auto; }
.footer { padding: 1rem 1.5rem; color: #5a6374; font-size: 0.85rem; text-align: center; }

/* ---- login ---- */
.login-box { max-width: 320px; margin: 6rem auto; background: #1a1f2a; padding: 2rem; border: 1px solid #232a38; border-radius: 8px; }
.login-box h2 { margin: 0 0 1rem; }
.login-box label { display: block; margin-bottom: 0.8rem; }
.login-box input { width: 100%; padding: 0.5rem 0.6rem; background: #0f131a; border: 1px solid #2a3244; color: #e4e9f0; border-radius: 4px; font-size: 0.95rem; margin-top: 0.2rem; }
.login-box button { width: 100%; padding: 0.6rem; background: #3a6fc8; border: 0; color: #fff; border-radius: 4px; font-weight: 600; cursor: pointer; }
.login-box button:hover { background: #4c80d9; }
.login-box .error { background: #3a1e1e; border: 1px solid #673232; color: #ffb0b0; padding: 0.6rem 0.8rem; border-radius: 4px; margin-bottom: 1rem; }

/* ---- alert banner ---- */
.alert-banner { padding: 0.6rem 1rem; border-radius: 6px; margin-bottom: 1.2rem; background: #1a332a; border: 1px solid #2a5540; }
.alert-banner.firing { background: #3a1e1e; border-color: #673232; color: #ffc0c0; }
.alert-banner a { margin-left: 1rem; }

/* ---- cluster grid / cards ---- */
.cluster-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 1rem; }
.cluster-card { background: #161a22; border: 1px solid #232a38; border-radius: 6px; padding: 1rem 1.2rem; }
.cluster-card header { display: flex; align-items: baseline; gap: 0.6rem; margin-bottom: 0.8rem; }
.cluster-card h2 { margin: 0; font-size: 1.15rem; }
.cluster-id { color: #6a7487; font-size: 0.85rem; }
.kpis { display: flex; gap: 1.5rem; margin-bottom: 0.8rem; flex-wrap: wrap; }
.kpi { display: flex; flex-direction: column; }
.kpi .n { font-size: 1.4rem; font-weight: 600; color: #f0f4fa; }
.kpi .l { color: #7a8699; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.node-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.3rem; }
.node-list li { padding: 0.2rem 0.6rem; border-radius: 3px; background: #1c2230; }
.node-list li.up .dot { background: #4ac770; }
.node-list li.down .dot { background: #d04747; }
.node-list .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 0.4rem; }

/* ---- tables ---- */
.tbl { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; }
.tbl th, .tbl td { padding: 0.4rem 0.7rem; border-bottom: 1px solid #232a38; text-align: left; }
.tbl th { color: #8c97a8; font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; }
.tbl tr.row-down td { color: #778499; }
.tbl-kv th { width: 180px; color: #8c97a8; }
.badge { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 3px; font-size: 0.8rem; font-weight: 600; }
.badge.ok   { background: #1e3f2c; color: #86e0a5; }
.badge.down { background: #3a1e1e; color: #ffa0a0; }
.badge.warn { background: #3a321e; color: #f0d080; }
.crumbs { color: #7a8699; font-size: 0.9rem; margin-bottom: 0.3rem; }
.ok { color: #86e0a5; }

/* ---- progress bar ---- */
.bar { display: inline-block; vertical-align: middle; width: 140px; height: 8px; background: #1c2230; border-radius: 4px; overflow: hidden; margin-right: 0.5rem; }
.bar .fill { height: 100%; background: #3a6fc8; transition: width 300ms ease; }
.bar .fill.hot { background: #d57474; }
.pct { font-variant-numeric: tabular-nums; color: #aab3c2; font-size: 0.9rem; }