:root {
  --bg: #f5f6f8; --fg: #1d2330; --muted: #6b7280; --card: #ffffff; --border: #dde1e7;
  --accent: #2f6fd0; --accent-fg: #ffffff; --danger: #c0392b; --warn: #b7791f;
  --up: #1f9d55; --down: #d63031; --pending: #8395a7; --disabled: #a0a0a0; --row-hover: #eef3fb;
  --sev0: #fde2e1; --sev3: #fdecea; --sev4: #fff6e0;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c; --fg: #e3e6eb; --muted: #9aa3af; --card: #1d2128; --border: #313743;
    --accent: #5b9bf0; --accent-fg: #0e1116; --row-hover: #232a35;
    --sev0: #4a1f1f; --sev3: #3d2222; --sev4: #3a321c;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--fg); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.4rem; margin: 0 0 .6rem; }
h2 { font-size: 1.15rem; margin: 1.2rem 0 .5rem; }
h3 { font-size: 1rem; margin: .6rem 0 .4rem; }
code, .mono, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.small { font-size: .82em; }
.muted { color: var(--muted); }
.err { color: var(--danger); }
.warn { color: var(--warn); }
.nowrap { white-space: nowrap; }

header.top { display: flex; align-items: center; gap: 1.5rem; padding: .55rem 1.2rem; background: var(--card); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
header .brand { font-weight: 700; color: var(--fg); }
header nav { display: flex; gap: 1rem; }
header nav a { color: var(--muted); padding: .2rem 0; }
header nav a.active { color: var(--fg); border-bottom: 2px solid var(--accent); }
header .logout { margin-left: auto; display: flex; gap: .6rem; align-items: center; }
main { padding: 1.2rem; max-width: 1600px; margin: 0 auto; }

.flash { background: var(--card); border-left: 4px solid var(--accent); padding: .6rem .9rem; margin-bottom: 1rem; border-radius: 4px; }
.flash.error { border-left-color: var(--danger); }
.flash ul { margin: 0; padding-left: 1.2rem; }

.toolbar { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; margin-bottom: .8rem; }
.toolbar h1, .toolbar h2 { margin: 0; }
.spacer { flex: 1; }
.counts { display: flex; gap: .35rem; }

button, .button { display: inline-block; font: inherit; padding: .38rem .8rem; border-radius: 5px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-fg); cursor: pointer; text-decoration: none; }
.button:hover, button:hover { filter: brightness(1.08); text-decoration: none; }
button.danger, .button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
button.small { padding: .15rem .5rem; font-size: .85em; }
button.link { background: none; border: none; color: var(--accent); padding: 0; }
form.inline { display: inline; }

input, select, textarea { font: inherit; padding: .35rem .5rem; border: 1px solid var(--border); border-radius: 5px; background: var(--bg); color: var(--fg); width: 100%; }
input[type=checkbox] { width: auto; }
input[type=search] { width: 18rem; }
label { display: block; margin-bottom: .6rem; }
label small { display: block; color: var(--muted); }
label.check { display: flex; gap: .5rem; align-items: center; }
fieldset { border: 1px solid var(--border); border-radius: 6px; margin: 0 0 1rem; padding: .7rem 1rem .3rem; }
legend { font-weight: 600; padding: 0 .3rem; }
.form { max-width: 820px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 1rem; }
.actions { display: flex; gap: 1rem; align-items: center; margin-top: .5rem; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 1rem; margin-bottom: 1rem; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); gap: 1rem; }
.cards .card { margin-bottom: 0; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; margin: 0; }
dt { color: var(--muted); }
dd { margin: 0; word-break: break-word; }

table.list { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
table.list th, table.list td { padding: .42rem .6rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
table.list th { font-weight: 600; background: var(--bg); position: sticky; top: 0; }
table.list tbody tr:hover { background: var(--row-hover); }
table.list.compact th, table.list.compact td { padding: .25rem .5rem; }
.num { text-align: right !important; font-variant-numeric: tabular-nums; }
tr.clickable { cursor: pointer; }
tr.selected { outline: 2px solid var(--accent); outline-offset: -2px; }
td.msg { white-space: pre-wrap; word-break: break-word; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .86em; }
td.msg .sd { color: var(--muted); font-size: .9em; }
tr.sev0 td, tr.sev1 td, tr.sev2 td { background: var(--sev0); }
tr.sev3 td { background: var(--sev3); }
tr.sev4 td { background: var(--sev4); }

.badge { display: inline-block; padding: .05rem .5rem; border-radius: 10px; font-size: .8em; font-weight: 600; color: #fff; background: var(--pending); }
.badge.up { background: var(--up); }
.badge.down { background: var(--down); }
.badge.pending { background: var(--pending); }
.badge.disabled { background: var(--disabled); }

.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0 1rem; align-items: start; }
.filters .actions { grid-column: 1 / -1; }

.ranges button { background: var(--card); color: var(--fg); border-color: var(--border); margin-left: -1px; border-radius: 0; }
.ranges button:first-child { border-radius: 5px 0 0 5px; }
.ranges button:last-child { border-radius: 0 5px 5px 0; }
.ranges button.active { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }

.charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(520px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.chart { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: .6rem; min-height: 290px; overflow: hidden; }
.chart.wide { grid-column: 1 / -1; }
.chart-title { font-weight: 600; margin-bottom: .3rem; }
.chart-empty { padding: 3rem 0; text-align: center; }
.u-legend { font-size: .82em; }

pre.copy { background: var(--bg); border: 1px solid var(--border); padding: .6rem; border-radius: 5px; overflow-x: auto; cursor: copy; }
pre.copy.copied { border-color: var(--up); }

.login { max-width: 360px; margin: 12vh auto; }
.login h1 { text-align: center; }

@media (max-width: 700px) {
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .charts { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  input[type=search] { width: 100%; }
  main { padding: .8rem; }
}