:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e3e6eb;
  --text: #16191d;
  --muted: #5d6673;
  --faint: #eef0f3;
  --ok: #1a8f52;
  --ok-soft: #e3f4ea;
  --warn: #b7791f;
  --warn-soft: #fbf0dc;
  --bad: #c53030;
  --bad-soft: #fbe5e5;
  --unknown: #8a93a0;
  --unknown-soft: #eceef1;
  --accent: #2b6cb0;
  --accent-soft: #e6effa;
  --nodata: #dfe3e8;
  --empty: #eceef1;
  --flash: #f5b400;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1216; --surface: #171b21; --border: #262c35; --text: #e6e9ee; --muted: #98a2b0; --faint: #1f242c;
    --ok: #3fbf7f; --ok-soft: #15291f; --warn: #e0a840; --warn-soft: #2c2415; --bad: #f06a6a; --bad-soft: #2f1a1a;
    --unknown: #7b8594; --unknown-soft: #20252c; --accent: #6aa8ec; --accent-soft: #17263a; --nodata: #2a3039; --empty: #1d2229;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1216; --surface: #171b21; --border: #262c35; --text: #e6e9ee; --muted: #98a2b0; --faint: #1f242c;
  --ok: #3fbf7f; --ok-soft: #15291f; --warn: #e0a840; --warn-soft: #2c2415; --bad: #f06a6a; --bad-soft: #2f1a1a;
  --unknown: #7b8594; --unknown-soft: #20252c; --accent: #6aa8ec; --accent-soft: #17263a; --nodata: #2a3039; --empty: #1d2229;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
main { max-width: 980px; margin: 0 auto; padding: 24px 16px 64px; }
[hidden] { display: none !important; }

/* --- Top bar --- */
.topbar { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.topbar-inner { max-width: 980px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.brand { font-weight: 650; color: var(--text); text-decoration: none; display: flex; align-items: center; gap: 8px; }
.tag { font-size: 11px; font-weight: 500; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 1px 8px; }
nav { display: flex; gap: 2px; }
nav a { color: var(--muted); text-decoration: none; font-size: 14px; padding: 6px 10px; border-radius: 8px; transition: background .15s, color .15s; }
nav a:hover { background: var(--faint); color: var(--text); }
nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
section[data-view] { animation: view-in .25s var(--ease); }
@keyframes view-in { from { opacity: 0; transform: translateY(6px); } }

/* --- Cards & text --- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
.card h2 { font-size: 15px; margin: 0 0 14px; display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.card h3 { font-size: 14px; margin: 18px 0 8px; }
.note, .hint { font-weight: 400; color: var(--muted); font-size: 13px; }
.hint { margin: -6px 0 14px; }
.empty { color: var(--muted); font-size: 14px; }
.mono { font-family: var(--mono); }

.banner { display: flex; align-items: center; gap: 14px; padding: 18px 20px; border-radius: var(--radius); margin-bottom: 16px; transition: background .4s; }
.banner .dot { width: 14px; height: 14px; border-radius: 50%; flex: none; position: relative; }
.banner .dot::after { content: ""; position: absolute; inset: 0; border-radius: 50%; background: inherit; animation: ping 2.4s var(--ease) infinite; }
@keyframes ping { 0% { transform: scale(1); opacity: .6; } 80%, 100% { transform: scale(2.6); opacity: 0; } }
.banner strong { font-size: 17px; display: block; }
.banner span { color: var(--muted); font-size: 13px; }
.s-operational { background: var(--ok-soft); } .s-operational .dot { background: var(--ok); }
.s-degraded { background: var(--warn-soft); } .s-degraded .dot { background: var(--warn); }
.s-outage { background: var(--bad-soft); } .s-outage .dot { background: var(--bad); }
.s-unknown { background: var(--unknown-soft); } .s-unknown .dot { background: var(--unknown); }
.outside-line { margin: -8px 0 16px; padding: 0 4px; font-size: 12px; color: var(--muted); }
.outside-line b { color: var(--text); font-weight: 600; }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.metric { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.metric .label { color: var(--muted); font-size: 12px; }
.metric .value { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; margin-top: 2px; }
.metric .value small { font-size: 13px; color: var(--muted); font-weight: 500; }
@media (max-width: 640px) { .metrics { grid-template-columns: repeat(2, 1fr); } }

/* --- Controls --- */
.tabs { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; flex: none; }
.tabs button { background: none; border: 0; padding: 4px 10px; font: inherit; font-size: 12px; color: var(--muted); cursor: pointer; }
.tabs button[aria-pressed="true"] { background: var(--faint); color: var(--text); font-weight: 600; }
.btn { font: inherit; font-size: 14px; padding: 7px 14px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; transition: background .15s, transform .1s; }
.btn:hover { background: var(--faint); }
.btn:active { transform: scale(.97); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.icon { width: 36px; height: 36px; padding: 0; display: grid; place-items: center; flex: none; }
.btn:disabled { opacity: .5; cursor: progress; }
.lookup-form { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.lookup-form input, .controls select, .controls input { font: inherit; font-size: 14px; padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); }
.lookup-form input { flex: 1; min-width: 180px; font-family: var(--mono); }
.controls { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }

/* --- Pills, legends --- */
.pill { font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.pill.operational, .pill.up { color: var(--ok); background: var(--ok-soft); }
.pill.degraded { color: var(--warn); background: var(--warn-soft); }
.pill.outage, .pill.down { color: var(--bad); background: var(--bad-soft); }
.pill.unknown, .pill.empty, .pill.not_monitored { color: var(--unknown); background: var(--unknown-soft); }
.legend { display: flex; gap: 16px; color: var(--muted); font-size: 12px; margin-top: 10px; flex-wrap: wrap; align-items: center; }
.legend i { display: inline-block; width: 14px; height: 0; border-top: 2px solid var(--accent); vertical-align: middle; margin-right: 6px; }
.legend i.dash { border-top: 1px dashed var(--muted); }
.legend i.box { height: 10px; border: 0; background: var(--bad); opacity: 0.25; }
.legend i.rtt { border-top: 2px solid var(--warn); }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }
.sw.operational { background: var(--ok); } .sw.degraded { background: var(--warn); } .sw.outage { background: var(--bad); }
.sw.empty { background: var(--empty); outline: 1px solid var(--border); } .sw.flash { background: var(--flash); }
.legend i.gradient { display: inline-block; width: 90px; height: 10px; border: 0; border-radius: 2px; vertical-align: -1px; margin: 0 6px; }

/* --- Charts --- */
.chart { position: relative; min-height: 60px; }
.chart svg { width: 100%; height: 200px; display: block; overflow: visible; }
.chart.small svg { height: 140px; }
.chart .line { fill: none; stroke: var(--accent); stroke-width: 2; vector-effect: non-scaling-stroke; }
.chart .line.draw { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 1.1s var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.chart .rtt { fill: none; stroke: var(--warn); stroke-width: 1.5; vector-effect: non-scaling-stroke; opacity: .8; }
.chart .area { fill: var(--accent); opacity: 0.08; animation: fade-in .8s ease; }
.chart .expected { fill: none; stroke: var(--muted); stroke-width: 1; stroke-dasharray: 4 4; vector-effect: non-scaling-stroke; }
.chart .incident { fill: var(--bad); opacity: 0.12; }
.chart .grid { stroke: var(--border); stroke-width: 1; vector-effect: non-scaling-stroke; }
.chart .cursor { stroke: var(--muted); stroke-width: 1; vector-effect: non-scaling-stroke; }
.chart-axis { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; margin-top: 6px; }
@keyframes fade-in { from { opacity: 0; } }
.tooltip { position: absolute; top: 0; z-index: 5; pointer-events: none; background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; padding: 6px 8px; font-size: 12px; white-space: nowrap; box-shadow: 0 4px 14px rgb(0 0 0 / 0.12); }

.bars { display: grid; grid-template-columns: repeat(30, 1fr); gap: 3px; height: 28px; }
.bars span { border-radius: 2px; background: var(--nodata); transform-origin: bottom; animation: grow .5s var(--ease) backwards; }
.bars span.ok { background: var(--ok); } .bars span.warn { background: var(--warn); } .bars span.bad { background: var(--bad); }
@keyframes grow { from { transform: scaleY(0); } }
.bars-axis { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; margin-top: 4px; }

/* History strip for one address */
.history { display: flex; height: 26px; border-radius: 4px; overflow: hidden; background: var(--nodata); }
.history span { height: 100%; transform-origin: left; animation: grow-x .7s var(--ease) backwards; }
.history .up { background: var(--ok); } .history .down { background: var(--bad); } .history .unmonitored { background: var(--nodata); }
@keyframes grow-x { from { transform: scaleX(0); } }

/* --- Status tiles --- */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 6px; }
.tile { border-radius: 6px; padding: 7px 8px; font-size: 11px; line-height: 1.35; cursor: pointer; border: 1px solid transparent;
  transition: transform .15s var(--ease), box-shadow .15s; background: var(--faint); color: var(--text); text-align: left; font-family: inherit; }
.tile:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgb(0 0 0 / .12); }
.tile .n { font-family: var(--mono); font-size: 11px; display: block; }
.tile .c { color: var(--muted); }
.tile.operational { background: var(--ok-soft); border-color: color-mix(in srgb, var(--ok) 30%, transparent); }
.tile.degraded { background: var(--warn-soft); border-color: var(--warn); }
.tile.outage { background: var(--bad-soft); border-color: var(--bad); animation: alarm 1.6s ease-in-out infinite; }
.tile.empty { opacity: .55; }
@keyframes alarm { 50% { box-shadow: 0 0 0 3px color-mix(in srgb, var(--bad) 35%, transparent); } }

/* --- Lookup --- */
.result-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.big-state { font-size: 22px; font-weight: 650; display: flex; align-items: center; gap: 10px; }
.big-state .dot { width: 12px; height: 12px; border-radius: 50%; }
.kv { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-top: 14px; }
.kv div { font-size: 13px; } .kv b { display: block; font-size: 16px; font-variant-numeric: tabular-nums; }
.kv .label { color: var(--muted); }
.callout { background: var(--faint); border-radius: 8px; padding: 10px 12px; font-size: 13px; color: var(--muted); margin-top: 14px; }

/* --- Time-lapse --- */
.tl-grid { display: grid; gap: 14px; }
.tl-group-label { font-size: 12px; color: var(--muted); margin-bottom: 6px; font-family: var(--mono); }
.tl-tiles { display: grid; grid-template-columns: repeat(8, 1fr); gap: 5px; }
.tl-tile { aspect-ratio: 1.6; border-radius: 5px; background: var(--nodata); position: relative; cursor: pointer; border: 0; padding: 0;
  transition: background-color .35s linear, transform .15s var(--ease); font: inherit; }
.tl-tile:hover { transform: scale(1.06); z-index: 1; }
.tl-tile span { position: absolute; left: 5px; bottom: 3px; font-size: 10px; font-family: var(--mono); color: rgb(255 255 255 / .9); text-shadow: 0 1px 2px rgb(0 0 0 / .4); }
.tl-tile.empty { background: var(--empty); outline: 1px dashed var(--border); outline-offset: -1px; }
.tl-tile.empty span { color: var(--muted); text-shadow: none; }
.tl-tile.incident::after { content: ""; position: absolute; inset: -3px; border-radius: 7px; border: 2px solid var(--bad); animation: alarm-ring 1.2s ease-out infinite; }
.tl-tile.selected { outline: 2px solid var(--text); outline-offset: 2px; }
@keyframes alarm-ring { from { opacity: 1; transform: scale(.96); } to { opacity: 0; transform: scale(1.12); } }
.tl-controls { display: flex; align-items: center; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.tl-track { position: relative; flex: 1; min-width: 200px; height: 36px; }
.tl-track canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.tl-track input { position: absolute; inset: 0; width: 100%; margin: 0; background: transparent; appearance: none; -webkit-appearance: none; cursor: pointer; }
.tl-track input::-webkit-slider-runnable-track { height: 36px; background: transparent; }
.tl-track input::-webkit-slider-thumb { -webkit-appearance: none; width: 3px; height: 36px; background: var(--text); border-radius: 2px; box-shadow: 0 0 0 3px color-mix(in srgb, var(--surface) 70%, transparent); }
.tl-track input::-moz-range-thumb { width: 3px; height: 36px; background: var(--text); border: 0; border-radius: 2px; }
.tl-track input::-moz-range-track { background: transparent; }
.tl-readout { margin-top: 10px; font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; min-height: 20px; }
.tl-readout b { color: var(--text); }

/* --- Latency bars --- */
.latency { position: relative; }
.lat-row { display: grid; grid-template-columns: 130px 1fr 120px; gap: 10px; align-items: center; height: 26px;
  position: absolute; left: 0; right: 0; transition: transform .6s var(--ease); }
.lat-row .name { font-family: var(--mono); font-size: 12px; }
.lat-row .track { position: relative; height: 12px; background: var(--faint); border-radius: 3px; }
.lat-row .fill { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 3px; background: var(--accent); transition: width .6s var(--ease), background .3s; }
.lat-row .fill.warn { background: var(--warn); } .lat-row .fill.bad { background: var(--bad); }
.lat-row .typ { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--text); opacity: .55; transition: left .6s var(--ease); }
.lat-row .val { font-size: 12px; text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); }
.lat-row .val b { color: var(--text); }
@media (max-width: 640px) { .lat-row { grid-template-columns: 105px 1fr 90px; } }

/* --- Gantt --- */
.gantt-row { display: grid; grid-template-columns: 130px 1fr; gap: 10px; align-items: center; height: 24px; }
.gantt-row .name { font-family: var(--mono); font-size: 12px; }
.gantt-row .lane { position: relative; height: 14px; background: var(--faint); border-radius: 3px; }
.gantt-row .bar { position: absolute; top: 0; bottom: 0; min-width: 3px; border-radius: 3px; background: var(--bad); transform-origin: left; animation: grow-x .8s var(--ease) backwards; cursor: default; }
.gantt-row .bar.open { background: repeating-linear-gradient(45deg, var(--bad) 0 6px, color-mix(in srgb, var(--bad) 60%, transparent) 6px 12px); background-size: 17px 17px; animation: grow-x .8s var(--ease) backwards, march 1s linear infinite; }
@keyframes march { to { background-position: 17px 0; } }
.gantt-axis { display: grid; grid-template-columns: 130px 1fr; gap: 10px; color: var(--muted); font-size: 11px; margin-top: 4px; }
.gantt-axis div { display: flex; justify-content: space-between; }

/* --- Tables --- */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); font-variant-numeric: tabular-nums; white-space: nowrap; }
th { color: var(--muted); font-weight: 600; position: sticky; top: 0; background: var(--surface); cursor: pointer; user-select: none; }
tr.clickable { cursor: pointer; } tr.clickable:hover td { background: var(--faint); }
.table-wrap { overflow: auto; }
.table-wrap.tall { max-height: 60vh; }
.meter { display: inline-block; width: 60px; height: 6px; background: var(--faint); border-radius: 3px; vertical-align: middle; margin-right: 6px; overflow: hidden; }
.meter i { display: block; height: 100%; background: var(--ok); transform-origin: left; animation: grow-x .8s var(--ease) backwards; }
.meter i.warn { background: var(--warn); } .meter i.bad { background: var(--bad); }

/* --- Admin map & tools --- */
.map-wrap { position: relative; }
.map-wrap canvas { width: 100%; display: block; cursor: crosshair; }
.ping-bars { display: flex; align-items: flex-end; gap: 4px; height: 90px; margin-top: 12px; }
.ping-bars span { flex: 1; background: var(--accent); border-radius: 3px 3px 0 0; transform-origin: bottom; animation: grow .45s var(--ease) backwards; position: relative; }
.ping-bars span.lost { background: var(--bad); height: 100% !important; opacity: .25; }
.hops { list-style: none; padding: 0; margin: 12px 0 0; font-size: 13px; }
.hops li { display: grid; grid-template-columns: 34px 170px 1fr; gap: 8px; align-items: center; padding: 3px 0; animation: hop-in .35s var(--ease) backwards; }
.hops .rtt-bar { height: 6px; background: var(--accent); border-radius: 3px; transform-origin: left; animation: grow-x .6s var(--ease) backwards; }
@keyframes hop-in { from { opacity: 0; transform: translateX(-8px); } }

.about { color: var(--muted); font-size: 13px; }
.about h2 { color: var(--text); }
.about ul { padding-left: 18px; margin: 8px 0 0; }
.about li { margin-bottom: 4px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
}