:root {
  --canvas: #f3f5f8;
  --surface: #ffffff;
  --surface-2: #f8f9fb;
  --ink: #141b2b;
  --ink-2: #475069;
  --muted: #7a8296;
  --line: #e2e6ee;
  --accent: #2e5bd8;
  --accent-ink: #ffffff;
  --ok: #1f9d6b;
  --ok-bg: #e5f6ee;
  --warn: #b7791f;
  --warn-bg: #fdf3e1;
  --down: #c83a3a;
  --down-bg: #fcebeb;
  --none: #a2a9b8;
  --spark: #2e5bd8;
  --spark-2: #1f9d6b;
  --shadow: 0 1px 2px rgb(20 27 43 / 0.06), 0 6px 20px rgb(20 27 43 / 0.05);
  --radius: 10px;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --canvas: #0e1320; --surface: #151c2c; --surface-2: #1a2235; --ink: #e8ecf5; --ink-2: #b4bccd; --muted: #8790a6;
    --line: #273047; --accent: #6f93ff; --accent-ink: #0e1320; --ok: #3ccf91; --ok-bg: #12352a; --warn: #f2b544; --warn-bg: #3a2d12;
    --down: #ff6b6b; --down-bg: #3d1b1f; --none: #5c657c; --spark: #6f93ff; --spark-2: #3ccf91;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --canvas: #0e1320; --surface: #151c2c; --surface-2: #1a2235; --ink: #e8ecf5; --ink-2: #b4bccd; --muted: #8790a6;
  --line: #273047; --accent: #6f93ff; --accent-ink: #0e1320; --ok: #3ccf91; --ok-bg: #12352a; --warn: #f2b544; --warn-bg: #3a2d12;
  --down: #ff6b6b; --down-bg: #3d1b1f; --none: #5c657c; --spark: #6f93ff; --spark-2: #3ccf91;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.3); color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--canvas); color: var(--ink); font: 14px/1.45 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; letter-spacing: -0.01em; text-wrap: balance; }
h1 { font-size: 22px; font-weight: 700; }
h2 { font-size: 15px; font-weight: 600; }
.muted { color: var(--muted); }
.pad { padding: 24px; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.topbar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 20px; padding: 0 20px; height: 54px; background: var(--surface); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand-mark { display: inline-flex; gap: 3px; padding: 5px; border-radius: 7px; background: #172033; }
.brand-mark i { width: 8px; height: 8px; border-radius: 50%; background: #34c38f; }
.brand-mark i + i { background: #f2b544; }
.tabs { display: flex; gap: 2px; flex: 1; overflow-x: auto; }
.tabs a { padding: 8px 12px; border-radius: 8px; color: var(--ink-2); font-weight: 500; white-space: nowrap; }
.tabs a:hover { background: var(--surface-2); text-decoration: none; }
.tabs a.active { color: var(--ink); background: var(--surface-2); box-shadow: inset 0 -2px 0 var(--accent); }

main { max-width: 1440px; margin: 0 auto; padding: 20px; display: grid; gap: 16px; }

button, .button { font: inherit; font-weight: 500; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); padding: 8px 14px; cursor: pointer; min-height: 36px; display: inline-flex; align-items: center; gap: 6px; }
button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button.danger { color: var(--down); }
button.ghost { background: transparent; }
button.small { min-height: 30px; padding: 4px 10px; font-size: 13px; }
button:disabled { opacity: 0.55; cursor: progress; }

input, select, textarea { font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; min-height: 36px; width: 100%; }
textarea { min-height: 140px; font-family: var(--mono); font-size: 13px; }
label { display: grid; gap: 4px; font-size: 12px; font-weight: 600; color: var(--ink-2); }
.hint { font-size: 12px; font-weight: 400; color: var(--muted); }

/* KPI */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.kpi { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; display: grid; gap: 2px; }
.kpi span { font-size: 12px; color: var(--muted); }
.kpi strong { font: 600 22px/1.2 var(--mono); font-variant-numeric: tabular-nums; }
.kpi.is-down strong { color: var(--down); }
.kpi.is-warn strong { color: var(--warn); }

/* Bộ lọc */
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.toolbar input[type=search] { max-width: 280px; }
.toolbar select { width: auto; }
.toolbar .spacer { flex: 1; }
.check { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500; color: var(--ink-2); }
.check input { width: auto; min-height: 0; }

/* Bảng */
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.panel > header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.panel > .body { padding: 14px 16px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; background: var(--surface-2); position: sticky; top: 0; }
td { padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tbody tr { cursor: pointer; }
tbody tr:hover td { background: var(--surface-2); }
tr.lvl-down td:first-child { box-shadow: inset 3px 0 0 var(--down); }
tr.lvl-warn td:first-child { box-shadow: inset 3px 0 0 var(--warn); }
.proj { display: grid; gap: 2px; min-width: 190px; }
.proj strong { font-weight: 600; }
.proj small { color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 2px; }
.tag { font-size: 11px; padding: 1px 7px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--line); color: var(--ink-2); }
.cell-num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.cell-num small { display: block; color: var(--muted); font-size: 11px; }
.dash { color: var(--none); }

.chip { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 999px; white-space: nowrap; background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--line); }
.chip.s-live { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.chip.s-building { background: #e8eeff; color: var(--accent); border-color: transparent; }
.chip.s-paused { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; background: var(--none); flex: none; }
.dot.ok { background: var(--ok); } .dot.warn { background: var(--warn); } .dot.down { background: var(--down); box-shadow: 0 0 0 3px var(--down-bg); }
.health { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.issues { font-size: 12px; color: var(--ink-2); max-width: 260px; }
.issues .down { color: var(--down); font-weight: 600; }
.issues .warn { color: var(--warn); }
.spark { display: block; }

/* Thẻ cho màn hình hẹp */
.cards { display: none; gap: 10px; }
.card { color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; display: grid; gap: 8px; }
.card.lvl-down { border-left: 3px solid var(--down); }
.card.lvl-warn { border-left: 3px solid var(--warn); }
.card-row { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; }
@media (max-width: 860px) {
  .table-wrap { display: none; }
  .cards { display: grid; }
  main { padding: 12px 16px; }
  .topbar { padding: 0 12px; gap: 10px; }
  .brand { font-size: 0; gap: 0; }
}

/* Chi tiết */
.detail-head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 12px; }
.detail-head .actions { display: flex; flex-wrap: wrap; gap: 8px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; font-size: 13px; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; overflow-wrap: anywhere; }
.chart { width: 100%; height: 150px; display: block; }
.chart text { fill: var(--muted); font: 10px var(--mono); }
.chart .grid { stroke: var(--line); }
.chart .line { fill: none; stroke: var(--spark); stroke-width: 1.8; }
.chart .area { fill: var(--spark); opacity: 0.1; }
.chart .bad { fill: var(--down); }
.chart-title { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.chart-title strong { font: 600 16px var(--mono); }
.list { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; font-size: 13px; }
.list li { display: flex; gap: 8px; justify-content: space-between; }
.events li { justify-content: flex-start; }
.events time { color: var(--muted); font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.lvl-down-t { color: var(--down); } .lvl-warn-t { color: var(--warn); } .lvl-up-t { color: var(--ok); }
form.edit { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
form.edit .wide { grid-column: 1 / -1; }
form.edit .form-actions { grid-column: 1 / -1; display: flex; gap: 8px; }
.empty { padding: 40px 20px; text-align: center; color: var(--muted); display: grid; gap: 10px; justify-items: center; }
.integ { display: grid; gap: 10px; }
.integ-row { display: grid; grid-template-columns: 24px 1fr auto; gap: 10px; align-items: start; padding: 10px 0; border-bottom: 1px solid var(--line); }
.integ-row:last-child { border-bottom: 0; }
.integ-row p { margin: 2px 0 0; font-size: 12px; color: var(--muted); overflow-wrap: anywhere; }
code { font-family: var(--mono); font-size: 12px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; overflow-wrap: anywhere; }
pre { font-family: var(--mono); font-size: 12px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px; padding: 10px; overflow-x: auto; margin: 0; }
.toast { position: fixed; right: 16px; bottom: 16px; background: var(--ink); color: var(--canvas); padding: 10px 14px; border-radius: 8px; font-size: 13px; box-shadow: var(--shadow); z-index: 20; }

dialog#login { border: 1px solid var(--line); border-radius: 14px; padding: 28px; width: min(360px, calc(100vw - 32px)); background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }
dialog#login::backdrop { background: var(--canvas); }
#login-form { display: grid; gap: 14px; }
.error { color: var(--down); font-size: 13px; margin: 0; min-height: 1em; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }
.card:hover { text-decoration: none; border-color: var(--muted); }