/* wachturm: ink on paper. Red only for problems. */
:root {
  --bg: #F2EEE6; --surface: #E7E2D8; --line: #DDD7CC;
  --text: #1A1A1A; --muted: #8A8580; --soft: #5C5853; --accent: #B23A2E;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141414; --surface: #1E1E1E; --line: #2A2826;
    --text: #E9E4DA; --muted: #5C5853; --soft: #8A8580; --accent: #C8473A;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0; color: var(--text); background: var(--bg);
  font: 15px/1.45 "IBM Plex Sans", system-ui, sans-serif;
}
main { max-width: 1180px; margin: 0 auto; padding: 8px 20px 40px; }
h1, h2 { font-weight: 600; letter-spacing: .01em; }
h1 { font-size: 20px; margin: 0; display: flex; align-items: center; gap: 10px; }
h2 { font-size: 13px; text-transform: uppercase; color: var(--soft); margin: 28px 0 10px; }
.seal { display: inline-block; width: 14px; height: 14px; background: var(--accent); border-radius: 2px; }
.muted { color: var(--soft); }
.small { font-size: 12.5px; }
.bad { color: var(--accent); }
.mono, td.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 13px; }

/* header */
.top {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 14px 20px; border-bottom: 1px solid var(--line); background: var(--surface);
}
.top .spacer { flex: 1; }
.top form { margin: 0; }
.badge { display: inline-block; padding: 0 7px; border: 1px solid var(--line); border-radius: 3px; font-size: 12px; margin-left: 6px; }
.badge.bad { border-color: var(--accent); }

/* problems */
.problems { border-left: 3px solid var(--accent); padding: 2px 0 2px 14px; margin-top: 18px; }
.problems h2 { color: var(--accent); margin-top: 6px; }
.problems ul { margin: 0; padding: 0; list-style: none; }
.problems li { padding: 3px 0; }
.problems li .muted { margin-left: 8px; }

/* metric cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; margin-top: 18px; }
.card { background: var(--surface); border-radius: 4px; padding: 12px 14px 8px; }
.card .label { font-size: 12.5px; color: var(--soft); }
.card .value { font-size: 22px; font-weight: 600; margin: 2px 0 4px; font-variant-numeric: tabular-nums; }
.card .value .muted { font-size: 13px; font-weight: 400; }
svg.spark { width: 100%; height: 60px; display: block; }
svg.spark .area { fill: var(--line); stroke: none; }
svg.spark .line { fill: none; stroke: var(--text); stroke-width: 1.4; vector-effect: non-scaling-stroke; }
svg.spark .line2 { fill: none; stroke: var(--muted); stroke-width: 1.2; vector-effect: non-scaling-stroke; }
svg.spark .warn { stroke: var(--accent); stroke-dasharray: 3 3; stroke-width: 1; vector-effect: non-scaling-stroke; }
.ranges { margin: 8px 0 0; text-align: right; }
.ranges button { background: none; border: 0; color: var(--soft); font: inherit; font-size: 12.5px; padding: 2px 8px; cursor: pointer; }
.ranges button.active { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 0 32px; }

/* disks */
.disk { margin: 8px 0 12px; }
.disk .head { display: flex; justify-content: space-between; font-size: 13.5px; }
.bar { height: 8px; background: var(--surface); border-radius: 2px; overflow: hidden; margin-top: 4px; }
.bar > div { height: 100%; background: var(--text); }
.bar.bad > div { background: var(--accent); }

/* tables */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-weight: 500; color: var(--soft); font-size: 12px; padding: 4px 8px; border-bottom: 1px solid var(--line); }
td { padding: 5px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
td.dot { width: 14px; padding-right: 0; }
.dot::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 1px; background: var(--muted); }
tr.bad .dot::before { background: var(--accent); }
tr.bad td.state { color: var(--accent); }
td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
th.num { text-align: right; }
.flag { color: var(--accent); font-size: 12px; margin-left: 6px; }
.table-wrap { overflow-x: auto; }

/* logs */
ul.log { list-style: none; margin: 0; padding: 0; font-size: 13.5px; }
ul.log li { padding: 4px 0; border-bottom: 1px solid var(--line); display: flex; gap: 10px; }
ul.log time { color: var(--soft); min-width: 92px; font-variant-numeric: tabular-nums; }
ul.log .bad { font-weight: 500; }

footer { margin-top: 36px; padding-top: 12px; border-top: 1px solid var(--line); }
button.link { background: none; border: 0; padding: 0; color: var(--soft); font: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
button.link:hover { color: var(--text); }
button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* login */
body.login { display: grid; place-items: center; min-height: 100vh; }
.login-box { width: min(340px, 90vw); }
.login-box h1 { margin-bottom: 22px; font-size: 24px; }
.login-box label { display: block; font-size: 13px; color: var(--soft); margin-bottom: 14px; }
.login-box input {
  display: block; width: 100%; margin-top: 4px; padding: 8px 10px; font: inherit; color: var(--text);
  background: var(--surface); border: 1px solid var(--line); border-radius: 3px;
}
.login-box button[type=submit] {
  margin-top: 6px; padding: 8px 18px; font: inherit; font-weight: 500; cursor: pointer;
  color: var(--bg); background: var(--text); border: 0; border-radius: 3px;
}

@media (max-width: 640px) {
  main { padding: 4px 12px 30px; }
  td, th { padding: 4px 5px; }
  .hide-narrow { display: none; }
}