:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --ink: #1b2330;
  --muted: #5d6778;
  --line: #d5dae2;
  --accent: #1f5fbf;
  --accent-ink: #ffffff;
  --ok: #2e9e5b;
  --warning: #e0a100;
  --critical: #d93025;
  --unknown: #8a8f98;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161d;
    --surface: #1a212b;
    --ink: #e7ebf1;
    --muted: #9aa5b5;
    --line: #2f3947;
    --accent: #6ea8ff;
    --accent-ink: #0c1320;
    --ok: #46c27a;
    --warning: #f0b93a;
    --critical: #ff6b5e;
    --unknown: #8a94a3;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
}
[hidden] { display: none !important; }
h1, h2, h3 { margin: 0; line-height: 1.2; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }
h3 { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.muted { color: var(--muted); }
.error { color: var(--critical); margin: 0; }

button, input, select, textarea { font: inherit; color: inherit; }
button {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  white-space: nowrap;
}
button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
button.danger { color: var(--critical); }
button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
input, select, textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 7px 9px;
}
label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
label > input, label > select { color: var(--ink); }

/* Inicio de sesión */
.login { min-height: 100%; display: grid; place-items: center; padding: 24px; }
.card {
  width: min(360px, 100%);
  display: grid; gap: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px;
}
.card p { margin: 0; }

/* Aplicación */
.app { height: 100%; display: grid; grid-template-rows: auto 1fr; }
.bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 8px 14px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.brand { font-size: 15px; letter-spacing: .01em; margin-right: 6px; }
.inline { display: flex; align-items: center; gap: 6px; }
.inline select { width: auto; min-width: 150px; }
.spacer { flex: 1; }
.counts { display: flex; gap: 12px; font-variant-numeric: tabular-nums; }
.counts span { display: inline-flex; align-items: center; gap: 5px; }
.live { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.live.stale { color: var(--critical); font-weight: 600; }

.work { display: flex; min-height: 0; }
.canvas-wrap { position: relative; flex: 1; min-width: 0; }
#cy { position: absolute; inset: 0; }
.canvas-wrap.stale #cy { opacity: .45; }
.empty {
  position: absolute; inset: 0;
  display: grid; place-items: center; text-align: center;
  padding: 24px; color: var(--muted); pointer-events: none;
}
.legend {
  position: absolute; left: 12px; bottom: 12px;
  display: flex; gap: 14px; margin: 0; padding: 6px 10px; list-style: none;
  background: var(--surface); border: 1px solid var(--line); border-radius: 6px;
  font-size: 12px;
}
.legend li { display: inline-flex; align-items: center; gap: 5px; }
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; border: 3px solid var(--unknown); }
.dot.ok { border-color: var(--ok); }
.dot.warning { border-color: var(--warning); }
.dot.critical { border-color: var(--critical); border-style: double; border-width: 4px; }
.dot.unknown { border-style: dashed; border-width: 2px; }

/* Panel lateral */
.panel {
  width: 400px; max-width: 100%;
  overflow-y: auto;
  background: var(--surface);
  border-left: 1px solid var(--line);
  padding: 16px;
  display: grid; gap: 16px; align-content: start;
}
.panel-head { display: flex; align-items: flex-start; gap: 10px; }
.panel-head h2 { flex: 1; overflow-wrap: anywhere; }
.panel-head button { padding: 2px 9px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--line); border-radius: 999px;
  padding: 2px 10px; font-size: 12px; font-weight: 600;
}
.chip.ok { color: var(--ok); border-color: var(--ok); }
.chip.warning { color: var(--warning); border-color: var(--warning); }
.chip.critical { color: var(--critical); border-color: var(--critical); }
.chip.unknown { color: var(--unknown); border-style: dashed; }
.facts { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 0; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; overflow-wrap: anywhere; }
.ranges { display: flex; gap: 4px; }
.ranges button { padding: 3px 9px; font-size: 12px; }
.chart { display: grid; gap: 2px; }
.chart-head { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); }
.chart-head b { color: var(--ink); font-variant-numeric: tabular-nums; }
.chart svg { width: 100%; height: 64px; display: block; border: 1px solid var(--line); border-radius: 6px; }
.chart polyline { fill: none; stroke: var(--accent); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.chart polyline.second { stroke: var(--warning); }
.chart-foot { display: flex; justify-content: space-between; font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; }
table.ifaces { width: 100%; border-collapse: collapse; font-size: 12px; }
table.ifaces th { text-align: left; color: var(--muted); font-weight: 500; padding: 4px 6px; border-bottom: 1px solid var(--line); }
table.ifaces td { padding: 4px 6px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
table.ifaces tr.pick { cursor: pointer; }
table.ifaces tr.pick:hover td, table.ifaces tr.sel td { background: var(--bg); }
.up { color: var(--ok); }
.down { color: var(--critical); }
.panel-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Diálogos */
dialog {
  width: min(520px, calc(100% - 24px));
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--line); border-radius: 10px; padding: 0;
}
dialog::backdrop { background: rgb(0 0 0 / .45); }
dialog form, .admin { display: grid; gap: 12px; padding: 20px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stack { display: grid; gap: 10px; }
.stack > div { display: grid; gap: 10px; }
.actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 4px; }
.admin section { display: grid; gap: 8px; padding-top: 12px; border-top: 1px solid var(--line); }
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.list li { display: flex; align-items: center; gap: 8px; }
.list li span:first-child { flex: 1; overflow-wrap: anywhere; }
.list button { padding: 2px 8px; font-size: 12px; }
.addrow { display: flex; gap: 8px; }
.addrow select { width: auto; }
.token { display: grid; gap: 6px; padding: 10px; border: 1px solid var(--warning); border-radius: 6px; }
.token p { margin: 0; }
.token textarea { font: 12px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; resize: vertical; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--ink); color: var(--bg);
  padding: 8px 16px; border-radius: 6px; max-width: 90%;
}

@media (max-width: 820px) {
  .work { flex-direction: column; }
  .panel { width: 100%; max-height: 55%; border-left: 0; border-top: 1px solid var(--line); }
  .row { grid-template-columns: 1fr; }
}