:root {
  --bg: #f6f5f1;
  --panel: #ffffff;
  --fg: #1d1d1b;
  --muted: #6b6a64;
  --line: #e4e2da;
  --accent: #1f6f5c;
  --accent-soft: #d7ebe4;
  --bar-muted: #cfcdc4;
  --warn: #a35c00;
  --bad: #b3261e;
  --ok: #1f6f5c;
  --radius: 12px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161614;
    --panel: #1f1f1c;
    --fg: #ecebe6;
    --muted: #a09f98;
    --line: #34332f;
    --accent: #5cc3a5;
    --accent-soft: #23423a;
    --bar-muted: #4a4943;
    --warn: #e0a34a;
    --bad: #f08b84;
    --ok: #5cc3a5;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--sans); font-size: 15px; line-height: 1.5; }
a { color: var(--accent); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px 48px; }

/* nav */
.top { border-bottom: 1px solid var(--line); background: var(--panel); position: sticky; top: 0; z-index: 5; }
.top .wrap { display: flex; align-items: center; gap: 16px; padding-top: 10px; padding-bottom: 10px; flex-wrap: wrap; }
.brand { font-family: var(--serif); font-size: 1.2rem; text-decoration: none; color: var(--fg); }
.nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.nav a { text-decoration: none; color: var(--muted); padding: 4px 10px; border-radius: 999px; font-size: .9rem; }
.nav a.on, .nav a:hover { color: var(--fg); background: var(--accent-soft); }
.top form { margin: 0; }

h1 { font-family: var(--serif); font-weight: 400; font-size: 1.9rem; margin: 28px 0 4px; }
h2 { font-size: 1.05rem; font-weight: 600; margin: 0 0 4px; }
.lede { color: var(--muted); margin: 0 0 20px; }
.note { color: var(--muted); font-size: .85rem; margin: 0 0 12px; }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 12px; margin-bottom: 16px; }
.tile, .card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.tile .lab { color: var(--muted); font-size: .8rem; }
.tile .num { font-family: var(--serif); font-size: 1.9rem; font-variant-numeric: tabular-nums; margin-top: 2px; }
.tile .unit { font-family: var(--sans); font-size: .85rem; color: var(--muted); }
.tile .sub { font-size: .8rem; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 12px; margin-bottom: 12px; }
.card { margin-bottom: 12px; }
.grid .card { margin-bottom: 0; }

table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th { text-align: left; font-weight: 600; color: var(--muted); font-size: .78rem; padding: 6px 10px 6px 0; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 8px 10px 8px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
.r { text-align: right; }
.scroll { overflow-x: auto; }
.muted { color: var(--muted); }
.up { color: var(--ok); }
.down { color: var(--warn); }
.bad { color: var(--bad); }
.pill { display: inline-block; font-size: .72rem; padding: 1px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--fg); }

/* charts */
.chart { display: block; }
.chart .lbl { font-size: 13px; fill: var(--fg); }
.chart .lbl.muted, .chart .tick { fill: var(--muted); }
.chart .tick { font-size: 11px; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .bar-muted { fill: var(--bar-muted); }
.chart .bar-accent { fill: var(--accent); }
.chart .line-accent { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.chart .dot-accent { fill: var(--accent); }
.empty { color: var(--muted); font-size: .85rem; padding: 24px 0; text-align: center; }

/* forms */
form.inline { display: inline; }
label { display: block; font-size: .82rem; color: var(--muted); margin-bottom: 4px; }
input[type=text], input[type=number], input[type=email], input[type=password], input[type=date], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--fg); font: inherit;
}
input[type=number] { text-align: right; }
td input { min-width: 90px; }
.field { margin-bottom: 12px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.row > * { flex: 1 1 180px; }
button, .btn {
  display: inline-block; font: inherit; font-size: .9rem; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--accent);
  background: var(--accent); color: #fff; cursor: pointer; text-decoration: none;
}
button.ghost, .btn.ghost { background: transparent; color: var(--accent); }
button.link { background: none; border: 0; color: var(--muted); padding: 0; font-size: .85rem; text-decoration: underline; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.flash { background: var(--accent-soft); border-radius: 8px; padding: 10px 14px; margin: 16px 0 0; }
.error { background: color-mix(in srgb, var(--bad) 15%, transparent); border-radius: 8px; padding: 10px 14px; margin: 16px 0 0; }

.prose { max-width: 760px; }
.prose table { margin: 12px 0; }
.prose h2 { margin-top: 20px; }

.login { max-width: 360px; margin: 12vh auto; }
.list { margin: 0; padding-left: 1.2em; }
.list li { margin-bottom: 4px; }
@media (max-width: 600px) {
  .hide-sm { display: none; }
  h1 { font-size: 1.6rem; }
}