/* Pulse dashboard. Colour roles follow one validated palette (light + dark chosen separately). */
:root {
  color-scheme: light;
  --page: #f6f6f3;
  --surface: #fcfcfb;
  --surface-2: #f1f1ee;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #7a7973;
  --grid: #e7e6e0;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --border-strong: rgba(11, 11, 11, 0.18);
  --accent: #2a78d6;
  --accent-wash: rgba(42, 120, 214, 0.10);
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100;
  --s5: #e87ba4; --s6: #008300; --s7: #6250d6; --s8: #e34948;
  --good: #0ca30c; --warning: #fab219; --serious: #ec835a; --critical: #d03b3b;
  --good-ink: #006300;
  --meter-track: #e3edf9;
  --shadow: 0 1px 2px rgba(11, 11, 11, 0.04);
  --radius: 10px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --page: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
    --ink: #f0efec; --ink-2: #c3c2b7; --muted: #8f8e88;
    --grid: #2c2c2a; --axis: #383835;
    --border: rgba(255, 255, 255, 0.10); --border-strong: rgba(255, 255, 255, 0.18);
    --accent: #3987e5; --accent-wash: rgba(57, 135, 229, 0.12);
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
    --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
    --good-ink: #0ca30c; --meter-track: #1f2a38; --shadow: none;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
  --ink: #f0efec; --ink-2: #c3c2b7; --muted: #8f8e88;
  --grid: #2c2c2a; --axis: #383835;
  --border: rgba(255, 255, 255, 0.10); --border-strong: rgba(255, 255, 255, 0.18);
  --accent: #3987e5; --accent-wash: rgba(57, 135, 229, 0.12);
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
  --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767;
  --good-ink: #0ca30c; --meter-track: #1f2a38; --shadow: none;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--page); color: var(--ink);
  font: 14px/1.45 var(--font); -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
button { font: inherit; color: inherit; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 22px; }
h2 { font-size: 15px; }
h3 { font-size: 13px; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------------------------------------------------------------- chrome */
.banner {
  background: var(--accent); color: #fff; text-align: center; font-size: 13px; padding: 7px 16px;
}
.banner a { text-decoration: underline; }
.topbar {
  position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--page) 86%, transparent); backdrop-filter: blur(10px);
}
.topbar-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 24px; height: 56px;
  display: flex; align-items: center; gap: 28px;
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 650; font-size: 15px; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 26px; height: 26px; }
.brand-mark rect { fill: var(--accent); }
.brand-mark path { fill: none; stroke: #fff; stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.nav { display: flex; gap: 4px; }
.nav a { padding: 6px 10px; border-radius: 7px; color: var(--ink-2); font-weight: 500; }
.nav a:hover { background: var(--surface-2); text-decoration: none; color: var(--ink); }
.nav a.active { color: var(--ink); background: var(--surface-2); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.freshness { color: var(--muted); font-size: 12.5px; display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.freshness .live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--good); }
.freshness.stale .live-dot { background: var(--warning); }
.icon-btn, .text-btn {
  border: 1px solid var(--border); background: var(--surface); border-radius: 8px; cursor: pointer;
  height: 32px; min-width: 32px; display: inline-flex; align-items: center; justify-content: center; padding: 0 10px;
}
.icon-btn { padding: 0; }
.icon-btn svg { width: 16px; height: 16px; }
.icon-btn:hover, .text-btn:hover { border-color: var(--border-strong); }
.main { max-width: 1280px; margin: 0 auto; padding: 24px 24px 64px; outline: none; }
.loading, .empty { color: var(--muted); padding: 48px 0; text-align: center; }

/* ---------------------------------------------------------------- layout */
.stack { display: flex; flex-direction: column; gap: 20px; }
.row { display: flex; align-items: center; gap: 10px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.split { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 14px; align-items: start; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 6px 0 -6px; }
.section-head .hint { color: var(--muted); font-size: 12.5px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px 18px; min-width: 0;
}
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.card-head .sub { color: var(--muted); font-size: 12.5px; }
.muted { color: var(--muted); }
.ink2 { color: var(--ink-2); }
.small { font-size: 12.5px; }
.nowrap { white-space: nowrap; }

/* ---------------------------------------------------------------- verdict + alerts */
.verdict { display: flex; gap: 16px; align-items: flex-start; padding: 20px 22px; }
.verdict-icon { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; flex: none; }
.verdict-icon svg { width: 22px; height: 22px; }
.verdict.ok .verdict-icon { background: color-mix(in srgb, var(--good) 14%, transparent); color: var(--good); }
.verdict.bad .verdict-icon { background: color-mix(in srgb, var(--serious) 16%, transparent); color: var(--serious); }
.verdict.crit .verdict-icon { background: color-mix(in srgb, var(--critical) 14%, transparent); color: var(--critical); }
.verdict-body { flex: 1; min-width: 0; }
.verdict-title { font-size: 19px; font-weight: 600; letter-spacing: -0.01em; }
.verdict-sub { color: var(--ink-2); margin-top: 2px; }
.alerts { list-style: none; margin: 14px 0 0; padding: 0; border-top: 1px solid var(--border); }
.alert { border-bottom: 1px solid var(--border); }
.alert:last-child { border-bottom: 0; }
.alert summary {
  list-style: none; cursor: pointer; display: grid; grid-template-columns: 112px minmax(0, 1fr) auto; gap: 12px;
  align-items: center; padding: 11px 0;
}
.alert summary::-webkit-details-marker { display: none; }
.alert-title { font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.alert-meta { color: var(--muted); font-size: 12.5px; display: flex; gap: 10px; align-items: center; white-space: nowrap; }
.alert-body { padding: 0 0 14px 124px; color: var(--ink-2); }
.alert-body ol { margin: 8px 0 0; padding-left: 18px; }
.alert-body li { margin: 3px 0; }
.alert-body code { background: var(--surface-2); padding: 1px 5px; border-radius: 4px; color: var(--ink); }
.tag { font-size: 11.5px; padding: 1px 7px; border-radius: 99px; border: 1px solid var(--border); color: var(--ink-2); }
.chev { width: 14px; height: 14px; color: var(--muted); transition: transform .15s; }
details[open] .chev { transform: rotate(90deg); }

/* status labels: icon + word, never colour alone */
.sev { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 550; color: var(--ink-2); white-space: nowrap; }
.sev svg { width: 14px; height: 14px; flex: none; }
.sev.crit svg, .st-crit svg { color: var(--critical); }
.sev.serious svg, .st-serious svg { color: var(--serious); }
.sev.warn svg, .st-warn svg { color: var(--warning); }
.sev.info svg { color: var(--accent); }
.sev.good svg, .st-ok svg { color: var(--good); }
.st-offline svg, .st-pending svg { color: var(--muted); }
.pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px 3px 7px; border-radius: 99px;
  border: 1px solid var(--border); background: var(--surface); font-size: 12px; font-weight: 550; color: var(--ink-2); white-space: nowrap;
}
.pill svg { width: 13px; height: 13px; }

/* ---------------------------------------------------------------- stat tiles */
.tile { display: flex; flex-direction: column; gap: 6px; }
.tile-label { color: var(--ink-2); font-size: 12.5px; }
.tile-value { font-size: 26px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.15; }
.tile-value small { font-size: 14px; color: var(--muted); font-weight: 500; margin-left: 2px; }
.tile-foot { color: var(--muted); font-size: 12px; display: flex; gap: 10px; flex-wrap: wrap; }
.tile .spark { margin-top: 4px; }

/* ---------------------------------------------------------------- host cards */
.host-card { display: flex; flex-direction: column; gap: 12px; transition: border-color .15s; }
.host-card:hover { border-color: var(--border-strong); text-decoration: none; }
.host-card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.host-name { font-weight: 600; font-size: 15px; }
.host-os { color: var(--muted); font-size: 12px; margin-top: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.meters { display: grid; gap: 8px; }
.meter-row { display: grid; grid-template-columns: 54px minmax(0, 1fr) 42px; gap: 10px; align-items: center; font-size: 12.5px; }
.meter-row .lbl { color: var(--ink-2); }
.meter-row .val { text-align: right; font-variant-numeric: tabular-nums; }
.meter { height: 6px; border-radius: 99px; background: var(--meter-track); overflow: hidden; }
.meter > span { display: block; height: 100%; border-radius: 99px; background: var(--accent); }
.meter.warn > span { background: var(--warning); }
.meter.crit > span { background: var(--critical); }
.host-net { display: flex; gap: 14px; font-size: 12.5px; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.host-foot { display: flex; justify-content: space-between; gap: 8px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--border); padding-top: 10px; }
.host-card.offline .meters, .host-card.offline .spark { opacity: .45; }

/* ---------------------------------------------------------------- charts */
.chart { position: relative; width: 100%; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; shape-rendering: crispEdges; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; shape-rendering: crispEdges; }
.chart .tick { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .area { stroke: none; }
.chart .end-dot { stroke: var(--surface); stroke-width: 2; }
.chart .cross { stroke: var(--axis); stroke-width: 1; }
.chart .hover-dot { stroke: var(--surface); stroke-width: 2; }
.chart .threshold { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 3 3; opacity: .7; }
.chart .threshold-label { fill: var(--muted); font-size: 10.5px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--ink-2); margin-bottom: 8px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 14px; height: 3px; border-radius: 2px; display: inline-block; }
.chart-tools { display: flex; align-items: center; gap: 8px; }
.link-btn { border: 0; background: none; color: var(--muted); cursor: pointer; font-size: 12px; padding: 2px 4px; border-radius: 5px; }
.link-btn:hover { color: var(--ink); background: var(--surface-2); }
.data-table { width: 100%; border-collapse: collapse; font-size: 12.5px; font-variant-numeric: tabular-nums; }
.data-table th, .data-table td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); }
.data-table th { color: var(--muted); font-weight: 500; }
.data-table td.num, .data-table th.num { text-align: right; }
.table-scroll { max-height: 260px; overflow: auto; }
.tooltip {
  position: fixed; z-index: 50; pointer-events: none; background: var(--surface); color: var(--ink);
  border: 1px solid var(--border-strong); border-radius: 8px; padding: 8px 10px; font-size: 12px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .14); min-width: 140px; max-width: 280px;
}
.tooltip .tt-time { color: var(--muted); margin-bottom: 4px; }
.tooltip .tt-row { display: grid; grid-template-columns: 10px 1fr auto; gap: 8px; align-items: center; font-variant-numeric: tabular-nums; }
.tooltip .tt-row i { width: 8px; height: 8px; border-radius: 50%; }

/* ---------------------------------------------------------------- host page */
.back { color: var(--muted); font-size: 13px; display: inline-flex; gap: 6px; align-items: center; }
.host-hero { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.host-hero h1 { display: flex; align-items: center; gap: 12px; }
.facts { display: flex; flex-wrap: wrap; gap: 6px 18px; color: var(--ink-2); font-size: 13px; margin-top: 6px; }
.facts b { color: var(--muted); font-weight: 500; margin-right: 5px; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; padding: 2px; background: var(--surface); }
.seg button { border: 0; background: none; padding: 4px 12px; border-radius: 6px; cursor: pointer; color: var(--ink-2); font-size: 13px; }
.seg button[aria-pressed="true"] { background: var(--surface-2); color: var(--ink); font-weight: 550; }
.kv { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 12px; font-size: 13px; align-items: center; }
.kv .k { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------------------------------------------------------------- events */
.events { list-style: none; margin: 0; padding: 0; }
.event { display: grid; grid-template-columns: 64px 18px minmax(0, 1fr) auto; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--border); align-items: start; font-size: 13px; }
.event:last-child { border-bottom: 0; }
.event .time { color: var(--muted); font-variant-numeric: tabular-nums; padding-top: 1px; }
.event .ev-icon svg { width: 15px; height: 15px; margin-top: 2px; }
.event .ev-title { font-weight: 500; }
.event .ev-detail { color: var(--muted); font-size: 12.5px; }
.event .ev-host { color: var(--ink-2); font-size: 12.5px; }
.ev-alert .ev-icon { color: var(--serious); }
.ev-alert.crit .ev-icon { color: var(--critical); }
.ev-alert.warn .ev-icon { color: var(--warning); }
.ev-resolved .ev-icon { color: var(--good); }
.ev-notify .ev-icon, .ev-host-kind .ev-icon { color: var(--muted); }
.day-head { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; margin: 18px 0 2px; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { border: 1px solid var(--border); background: var(--surface); border-radius: 99px; padding: 4px 12px; cursor: pointer; font-size: 13px; color: var(--ink-2); }
.chip[aria-pressed="true"] { border-color: var(--ink-2); color: var(--ink); font-weight: 550; }

/* ---------------------------------------------------------------- login */
.login { max-width: 360px; margin: 10vh auto 0; }
.login form { display: flex; flex-direction: column; gap: 12px; margin-top: 14px; }
.login input {
  font: inherit; padding: 9px 12px; border-radius: 8px; border: 1px solid var(--border-strong);
  background: var(--page); color: var(--ink);
}
.btn-primary { background: var(--accent); color: #fff; border: 0; border-radius: 8px; padding: 9px 12px; font-weight: 600; cursor: pointer; }
.error { color: var(--critical); font-size: 13px; min-height: 18px; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 1080px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 760px) {
  .topbar-inner { padding: 0 16px; gap: 14px; }
  .main { padding: 16px 16px 48px; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3, .grid-2 { grid-template-columns: minmax(0, 1fr); }
  .freshness .text { display: none; }
  .alert summary { grid-template-columns: minmax(0, 1fr) auto; }
  .alert summary .sev { grid-column: 1 / -1; }
  .alert-title { white-space: normal; }
  .alert-body { padding-left: 0; }
  .tile-value { font-size: 22px; }
  .verdict { padding: 16px; }
  .event { grid-template-columns: 52px 18px minmax(0, 1fr); }
  .event .ev-host { grid-column: 3; }
}
@media (max-width: 420px) {
  .nav a { padding: 6px 7px; }
  .brand-name { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* series slots, referenced by class so no inline styles are needed */
.k1 { --k: var(--s1); } .k2 { --k: var(--s2); } .k3 { --k: var(--s3); } .k4 { --k: var(--s4); }
.k5 { --k: var(--s5); } .k6 { --k: var(--s6); } .k7 { --k: var(--s7); } .k8 { --k: var(--s8); }
.legend i, .tooltip .tt-row i { background: var(--k); }
.spark .s-area { fill: var(--k); fill-opacity: 0.1; }
.spark .s-line { fill: none; stroke: var(--k); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.spark { display: block; }
.mt { margin-top: 18px; }
.alert-since { margin-top: 8px; }

/* ---------------------------------------------------------------- incident timeline */
.host-card-head > div:first-child { min-width: 0; flex: 1; }
.tl { display: grid; gap: 9px; margin-top: 4px; }
.tl-row { display: grid; grid-template-columns: 76px minmax(0, 1fr) 76px; gap: 12px; align-items: center; font-size: 13px; }
.tl-name { font-weight: 550; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tl-track { position: relative; height: 16px; background: var(--surface-2); border-radius: 4px; }
.tl-seg {
  position: absolute; top: 0; bottom: 0; min-width: 4px; border-radius: 3px; cursor: default;
  box-shadow: 0 0 0 2px var(--surface); background: var(--warning);
}
.tl-seg.serious { background: var(--serious); }
.tl-seg.crit { background: var(--critical); }
.tl-seg:hover, .tl-seg:focus-visible { outline: 2px solid var(--ink); outline-offset: 1px; z-index: 2; }
.tl-up { text-align: right; color: var(--ink-2); font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tl-axis { position: relative; height: 14px; }
.tl-axis span { position: absolute; transform: translateX(-50%); font-size: 11px; color: var(--muted); }
.tl-legend { margin: 0; }
.tooltip .sev { margin: 2px 0; }
@media (max-width: 760px) {
  .tl-row { grid-template-columns: 58px minmax(0, 1fr) 62px; gap: 8px; }
  .tl-legend { display: none; }
}
.tl-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
.tl-stat { font-size: 18px; font-weight: 600; letter-spacing: -0.01em; margin-top: 2px; }
@media (max-width: 760px) {
  .verdict { flex-direction: column; gap: 10px; }
  .verdict-icon { width: 34px; height: 34px; }
  .tl-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.host-dots { display: flex; gap: 4px; margin-top: 6px; }
.hd { width: 100%; max-width: 34px; height: 10px; border-radius: 3px; background: var(--good); }
.hd.st-warn { background: var(--warning); }
.hd.st-serious { background: var(--serious); }
.hd.st-crit { background: var(--critical); }
.hd.st-offline, .hd.st-pending { background: var(--axis); }
.sev-bar { display: flex; gap: 2px; height: 10px; margin-top: 6px; border-radius: 3px; overflow: hidden; }
.sev-bar span { height: 100%; }
.sev-bar .crit { background: var(--critical); }
.sev-bar .serious { background: var(--serious); }
.sev-bar .warn { background: var(--warning); }
.sev-bar .info { background: var(--accent); }
.sev-bar .none { background: var(--good); opacity: .35; }
.tile-foot { margin-top: auto; }