:root {
  --bg: #f6f7f9; --card: #ffffff; --text: #16191d; --muted: #5f6873; --line: #e3e6ea;
  --accent: #2f6fde; --accent-text: #ffffff; --warn: #d9822b; --danger: #c93c3c; --alert-bg: #eef3fd;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418; --card: #1a1e24; --text: #e8ebef; --muted: #9aa4af; --line: #2b313a;
    --accent: #5b8ff0; --accent-text: #0d1117; --warn: #e89a4c; --danger: #e06666; --alert-bg: #1d2738;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1080px; margin: 0 auto; padding-inline: 16px; }
main.wrap { padding-block: 24px 48px; }
h1 { font-size: 1.6rem; margin: 0 0 4px; }
h2 { font-size: 1.05rem; margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.top { background: var(--card); border-bottom: 1px solid var(--line); }
.top-inner { display: flex; justify-content: space-between; align-items: center; padding-block: 12px; gap: 12px; flex-wrap: wrap; }
.brand { font-weight: 650; color: var(--text); }
nav { display: flex; gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin-top: 16px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.tiles .card { margin-top: 16px; }
.tile { display: flex; flex-direction: column; gap: 4px; }
.tile .label { color: var(--muted); font-size: .85rem; }
.tile .value { font-size: 1.6rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.meter { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; margin-top: 6px; }
.meter-fill { height: 100%; background: var(--accent); }
.meter-fill.warn { background: var(--warn); }
.chart { position: relative; height: 260px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 550; font-size: .85rem; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.narrow { max-width: 420px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: .9rem; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: 8px; }
input, select { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line);
  border-radius: 7px; padding: 8px 10px; }
button { font: inherit; background: var(--accent); color: var(--accent-text); border: 0; border-radius: 7px;
  padding: 9px 14px; cursor: pointer; font-weight: 550; align-self: flex-start; }
button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
button.danger { background: var(--danger); color: #fff; margin-top: 8px; }
details summary { cursor: pointer; color: var(--accent); }
details[open] { min-width: 240px; }
details form { margin-top: 10px; }
.alert { background: var(--alert-bg); border: 1px solid var(--line); padding: 10px 12px; border-radius: 8px; }
.tag { font-size: .75rem; border: 1px solid var(--line); border-radius: 4px; padding: 1px 6px; color: var(--muted); }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.row-between h2 { margin: 0; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 0 16px; }
.login { max-width: 380px; margin: 10vh auto 0; }
.login h1 { text-align: center; }
.login > p { text-align: center; }