:root {
  --bg: #f5f6f8; --panel: #ffffff; --text: #1d2330; --muted: #6b7385; --border: #e3e6ec;
  --accent: #2f6fde; --ok: #1f9d55; --crit: #d62f3f; --high: #e8730c; --med: #c99a06; --low: #3b82c4;
  --crit-bg: #fde8ea; --high-bg: #fdefe2; --med-bg: #fbf3d6; --low-bg: #e4effa; --ok-bg: #e2f5ea;
  --code: #f0f2f5; --shadow: 0 1px 2px rgba(16,24,40,.06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11141a; --panel: #1a1e26; --text: #e5e8ee; --muted: #8b93a5; --border: #2a303c;
    --accent: #5b8ff0; --ok: #3ec27a; --crit: #ff5a68; --high: #ff9640; --med: #e9c235; --low: #62a6e8;
    --crit-bg: #3a1a1f; --high-bg: #3a2614; --med-bg: #362f12; --low-bg: #16293d; --ok-bg: #143022;
    --code: #232833; --shadow: none;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
h2 { font-size: 16px; margin: 0; }
button, input, select { font: inherit; color: inherit; }

.btn { border: 1px solid var(--border); background: var(--panel); border-radius: 8px; padding: 6px 12px; cursor: pointer; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; }
.btn.small { padding: 3px 9px; font-size: 12px; }

.brand { font-weight: 700; font-size: 16px; display: flex; align-items: center; gap: 8px; }
.logo { color: var(--accent); }

.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 340px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 28px; display: flex; flex-direction: column; gap: 14px; box-shadow: var(--shadow); }
.login-card label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
input, select { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px; }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.error { color: var(--crit); font-size: 13px; min-height: 18px; }

.topbar { position: sticky; top: 0; z-index: 5; display: flex; justify-content: space-between; align-items: center;
  gap: 12px; padding: 10px 24px; background: var(--panel); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.top-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.pill { font-size: 12px; padding: 3px 10px; border-radius: 99px; background: var(--code); }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.warn { background: var(--med-bg); color: var(--med); }

main { max-width: 1400px; margin: 0 auto; padding: 20px 24px 60px; display: flex; flex-direction: column; gap: 24px; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }

.tiles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.tile { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; box-shadow: var(--shadow);
  cursor: pointer; }
.tile .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.tile .value { font-size: 28px; font-weight: 700; margin-top: 4px; font-variant-numeric: tabular-nums; }
.tile.crit .value { color: var(--crit); } .tile.high .value { color: var(--high); }
.tile.med .value { color: var(--med); } .tile.low .value { color: var(--low); }
.tile.zero .value { color: var(--muted); }

.hosts { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.host { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px;
  cursor: pointer; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px; }
.host.selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.host.offline { opacity: .85; border-style: dashed; }
.host-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.host-name { font-weight: 700; font-size: 15px; display: flex; align-items: center; gap: 8px; word-break: break-all; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); flex: none; }
.dot.off { background: var(--crit); }
.host-sub { font-size: 12px; color: var(--muted); }
.meters { display: grid; grid-template-columns: 1fr; gap: 6px; }
.meter { display: grid; grid-template-columns: 38px 1fr 44px; align-items: center; gap: 8px; font-size: 12px; }
.bar { height: 6px; border-radius: 3px; background: var(--code); overflow: hidden; }
.bar > i { display: block; height: 100%; width: 0; background: var(--ok); }
.bar > i.warn { background: var(--med); } .bar > i.bad { background: var(--crit); }
.meter .v { text-align: right; font-variant-numeric: tabular-nums; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 99px; }
.sev-CRITICAL { background: var(--crit-bg); color: var(--crit); }
.sev-HIGH { background: var(--high-bg); color: var(--high); }
.sev-MEDIUM { background: var(--med-bg); color: var(--med); }
.sev-LOW, .sev-INFO { background: var(--low-bg); color: var(--low); }
.chip.ok { background: var(--ok-bg); color: var(--ok); }
.host-foot { display: flex; gap: 12px; font-size: 12px; color: var(--muted); flex-wrap: wrap; }

.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.tabs { display: flex; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 2px; }
.tabs button { border: 0; background: transparent; padding: 5px 10px; border-radius: 6px; cursor: pointer; color: var(--muted); }
.tabs button.active { background: var(--accent); color: #fff; }

.findings { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); }
.f-row { border-bottom: 1px solid var(--border); }
.f-row:last-child { border-bottom: 0; }
.f-main { display: grid; grid-template-columns: 90px 150px 1fr 120px 110px; gap: 12px; align-items: center;
  padding: 10px 16px; cursor: pointer; }
.f-main:hover { background: var(--code); }
.f-title { font-weight: 500; }
.f-check { font-size: 12px; color: var(--muted); }
.f-host { font-size: 13px; word-break: break-all; }
.f-time { font-size: 12px; color: var(--muted); }
.f-actions { text-align: right; }
.f-detail { padding: 4px 16px 16px 118px; display: flex; flex-direction: column; gap: 10px; }
.f-detail h4 { margin: 0 0 4px; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
pre { margin: 0; background: var(--code); border-radius: 8px; padding: 10px 12px; white-space: pre-wrap; word-break: break-word;
  font: 12.5px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.fix-wrap { position: relative; }
.fix-wrap .btn { position: absolute; top: 6px; right: 6px; }
.meta { font-size: 12px; color: var(--muted); display: flex; gap: 16px; flex-wrap: wrap; }
.empty { padding: 40px 16px; text-align: center; color: var(--muted); }
.status-acked { font-size: 11px; color: var(--muted); }

@media (max-width: 900px) {
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .tiles .tile:first-child { grid-column: span 2; }
  .f-main { grid-template-columns: 80px 1fr; }
  .f-main .f-host { grid-column: 2; grid-row: 2; }
  .f-main .f-time { display: none; }
  .f-main .f-actions { grid-column: 1 / -1; text-align: left; }
  .f-detail { padding: 4px 16px 16px; }
  main, .topbar { padding-left: 16px; padding-right: 16px; }
}

/* ---- host detail + charts */
.detail { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; box-shadow: var(--shadow); }
.detail-info { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 12.5px; color: var(--muted); margin-bottom: 14px; }
.detail-info b { color: var(--text); font-weight: 500; }
.charts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.chart { position: relative; border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px 6px; min-width: 0; }
.chart-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 4px; }
.chart-title { font-size: 12px; color: var(--muted); }
.chart-now { font-size: 18px; font-weight: 700; font-variant-numeric: tabular-nums; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart .grid { stroke: var(--border); stroke-width: 1; }
.chart .axis-label { fill: var(--muted); font-size: 10px; }
.chart .series { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .bar { fill: var(--accent); }
.chart .bar.dim { opacity: .35; }
.chart .cross { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 3; }
.chart .dot { fill: var(--accent); stroke: var(--panel); stroke-width: 2; }
.chart .empty-msg { fill: var(--muted); font-size: 12px; }
.tip { position: absolute; pointer-events: none; background: var(--text); color: var(--panel); font-size: 12px;
  padding: 4px 8px; border-radius: 6px; white-space: nowrap; transform: translateX(-50%); z-index: 3; }
.data-table { margin-top: 12px; font-size: 13px; }
.data-table summary { cursor: pointer; color: var(--muted); }
.data-table table { width: 100%; border-collapse: collapse; margin-top: 8px; font-variant-numeric: tabular-nums; }
.data-table th, .data-table td { text-align: right; padding: 4px 8px; border-bottom: 1px solid var(--border); }
.data-table th:first-child, .data-table td:first-child { text-align: left; }
.data-table .scroll { max-height: 280px; overflow: auto; }
@media (max-width: 1100px) { .charts { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .charts { grid-template-columns: 1fr; } }