:root {
  --bg: #0b0f17;
  --panel: #121826;
  --panel-2: #18202f;
  --border: #243047;
  --text: #e6ebf5;
  --muted: #8a97b1;
  --accent: #4f8cff;
  --ok: #2ecc71;
  --warn: #f5b942;
  --bad: #ff5a5f;
  --info: #5ac8fa;
  --radius: 10px;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); min-height: 100%; }
body { font-size: 14px; line-height: 1.45; }
a { color: var(--accent); text-decoration: none; }
h1, h2, h3 { margin: 0 0 .5rem; font-weight: 600; }
h1 { font-size: 1.25rem; }
h2 { font-size: 1.05rem; color: var(--text); }
h3 { font-size: .95rem; }
code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: .9em; }
button, .btn {
  background: var(--accent); color: #fff; border: 0; border-radius: 7px; padding: 8px 14px; cursor: pointer; font: inherit; font-weight: 500;
}
button:hover { filter: brightness(1.1); }
button.secondary { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); }
button.danger { background: var(--bad); }
button:disabled { opacity: .5; cursor: default; }
input, select {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border); border-radius: 7px; padding: 9px 11px; font: inherit; width: 100%;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
label { display: block; color: var(--muted); font-size: .85rem; margin-bottom: 4px; }
.field { margin-bottom: 14px; }
.muted { color: var(--muted); }
.small { font-size: .82rem; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.error { color: var(--bad); margin: 8px 0; min-height: 1.2em; }
.success { color: var(--ok); margin: 8px 0; }

/* ---- auth pages ---- */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.auth-card { width: 100%; max-width: 400px; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 28px; }
.auth-card .brand { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.auth-card .brand .dot { width: 12px; height: 12px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 12px var(--ok); }
.auth-card button { width: 100%; margin-top: 8px; }
.notice { background: var(--panel-2); border: 1px solid var(--border); border-left: 3px solid var(--warn); padding: 10px 12px; border-radius: 7px; margin-bottom: 16px; }

/* ---- layout ---- */
.topbar {
  display: flex; align-items: center; gap: 16px; padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar .brand { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.topbar .brand .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.topbar .brand .dot.bad { background: var(--bad); box-shadow: 0 0 10px var(--bad); }
.topbar .brand .dot.warn { background: var(--warn); box-shadow: 0 0 10px var(--warn); }
.tabs { display: flex; gap: 4px; margin-left: 12px; }
.tabs button { background: transparent; color: var(--muted); padding: 7px 12px; border-radius: 7px; }
.tabs button.active { background: var(--panel-2); color: var(--text); }
.spacer { flex: 1; }
.topbar .right { display: flex; align-items: center; gap: 10px; }
main { padding: 20px; max-width: 1500px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

.banner { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; display: flex; align-items: center; gap: 12px; border: 1px solid; }
.banner.critical { background: rgba(255,90,95,.12); border-color: var(--bad); }
.banner.warning { background: rgba(245,185,66,.12); border-color: var(--warn); }
.banner.info { background: rgba(90,200,250,.1); border-color: var(--info); }
.banner .spacer { flex: 1; }

.grid { display: grid; gap: 14px; }
.grid.tiles { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); margin-bottom: 16px; }
.grid.sites { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.tile .label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
.tile .value { font-size: 1.7rem; font-weight: 600; margin-top: 4px; }
.tile .sub { color: var(--muted); font-size: .82rem; margin-top: 2px; }
.tile.ok .value { color: var(--ok); }
.tile.warn .value { color: var(--warn); }
.tile.bad .value { color: var(--bad); }

.site-card { display: flex; flex-direction: column; gap: 8px; }
.site-card .head { display: flex; align-items: center; gap: 8px; }
.site-card .head .name { font-weight: 600; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); flex-shrink: 0; }
.status-dot.ok { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.status-dot.bad { background: var(--bad); box-shadow: 0 0 8px var(--bad); }
.status-dot.warn { background: var(--warn); }
.pill { font-size: .72rem; padding: 2px 7px; border-radius: 999px; background: var(--panel-2); color: var(--muted); border: 1px solid var(--border); white-space: nowrap; }
.site-card .stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.site-card .stat { background: var(--panel-2); border-radius: 7px; padding: 6px 8px; }
.site-card .stat .k { color: var(--muted); font-size: .7rem; text-transform: uppercase; }
.site-card .stat .v { font-weight: 600; font-size: .95rem; }
.site-card .spark { position: relative; height: 48px; }
.site-card .foot { display: flex; justify-content: space-between; color: var(--muted); font-size: .8rem; }

.toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.range { display: inline-flex; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 3px; }
.range button { background: transparent; color: var(--muted); padding: 6px 12px; }
.range button.active { background: var(--accent); color: #fff; }
.chart-box { position: relative; height: 320px; }
.chart-box.short { height: 220px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr:hover td { background: rgba(255,255,255,.02); }
.table-wrap { overflow-x: auto; }

.budget-bar { height: 12px; background: var(--panel-2); border-radius: 999px; overflow: hidden; margin: 8px 0; }
.budget-bar > div { height: 100%; background: var(--ok); transition: width .4s; }
.budget-bar.warning > div { background: var(--warn); }
.budget-bar.over > div { background: var(--bad); }

.alert-row { display: flex; gap: 12px; align-items: flex-start; padding: 12px 0; border-bottom: 1px solid var(--border); }
.alert-row .sev { width: 8px; align-self: stretch; border-radius: 4px; }
.alert-row .sev.critical { background: var(--bad); }
.alert-row .sev.warning { background: var(--warn); }
.alert-row .sev.info { background: var(--info); }
.alert-row .body { flex: 1; }
.alert-row.acked { opacity: .55; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } .tabs { display: none; } .mobile-tabs { display: flex; } }
.mobile-tabs { display: none; gap: 4px; padding: 8px 12px; overflow-x: auto; background: var(--panel); border-bottom: 1px solid var(--border); }
.mobile-tabs button { background: transparent; color: var(--muted); padding: 6px 10px; white-space: nowrap; }
.mobile-tabs button.active { background: var(--panel-2); color: var(--text); }
.empty { color: var(--muted); padding: 30px; text-align: center; }
.log-line { display: grid; grid-template-columns: 150px 70px 1fr; gap: 8px; padding: 4px 0; border-bottom: 1px dashed var(--border); font-size: .8rem; }
.log-line .ok { color: var(--ok); } .log-line .fail { color: var(--bad); }