:root {
  --bg: #f6f7f9; --panel: #ffffff; --text: #18202b; --muted: #5d6878; --line: #e2e6ec;
  --accent: #2f6fdf; --calm: #1f8a5b; --calm-bg: #e6f4ed; --caution: #a66a00;
  --caution-bg: #fdf3e0; --stress: #c2362b; --stress-bg: #fbe9e7; --chart-1: #2f6fdf;
  --chart-2: #8a63d2; --chart-band: rgba(194, 54, 43, 0.10);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1318; --panel: #171c23; --text: #e6e9ee; --muted: #98a2b1; --line: #29303a;
    --accent: #6c9cf0; --calm: #4cc38a; --calm-bg: #15291f; --caution: #e0a640;
    --caution-bg: #2c2414; --stress: #f0705f; --stress-bg: #301a17; --chart-1: #6c9cf0;
    --chart-2: #b296f0; --chart-band: rgba(240, 112, 95, 0.14);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
header.top {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap; padding: 10px 20px;
  background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5;
}
header.top .brand { font-weight: 700; font-size: 17px; color: var(--text); letter-spacing: .02em; }
header.top nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
header.top nav a { padding: 6px 10px; border-radius: 6px; color: var(--muted); }
header.top nav a.on { background: var(--bg); color: var(--text); font-weight: 600; }
header.top form { margin: 0; }
main { max-width: 1180px; margin: 0 auto; padding: 20px 16px 60px; }
footer.disclaimer {
  max-width: 1180px; margin: 0 auto; padding: 0 16px 30px; color: var(--muted); font-size: 12.5px;
}
h1 { font-size: 22px; margin: 4px 0 14px; }
h2 { font-size: 16px; margin: 0 0 10px; }
h3 { font-size: 14.5px; margin: 0 0 6px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.grid { display: grid; gap: 14px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.g4 { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; min-width: 0; }
.card + .card, .grid + .card, .card + .grid, .grid + .grid { margin-top: 14px; }
.grid > .card { margin-top: 0; }
.kpi .v { font-size: 24px; font-weight: 650; font-variant-numeric: tabular-nums; }
.kpi .l { color: var(--muted); font-size: 13px; }
.tone { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12.5px; font-weight: 600; white-space: nowrap; }
.tone.calm { color: var(--calm); background: var(--calm-bg); }
.tone.caution { color: var(--caution); background: var(--caution-bg); }
.tone.stress { color: var(--stress); background: var(--stress-bg); }
.axis { border-left: 4px solid var(--line); }
.axis.calm { border-left-color: var(--calm); }
.axis.caution { border-left-color: var(--caution); }
.axis.stress { border-left-color: var(--stress); }
.axis ul { margin: 6px 0 0; padding-left: 18px; color: var(--muted); font-size: 13px; }
.alert { background: var(--caution-bg); border: 1px solid var(--caution); border-radius: 10px; padding: 12px 14px; margin-bottom: 12px; }
.alert h3 { color: var(--caution); }
.alert ul { margin: 6px 0; padding-left: 18px; }
.alert form { display: inline; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: .03em; }
td.num, th.num { text-align: right; }
.scroll { overflow-x: auto; }
.bar { position: relative; height: 8px; background: var(--bg); border-radius: 4px; min-width: 80px; }
.bar > span { position: absolute; top: 0; bottom: 0; left: 0; background: var(--chart-1); border-radius: 4px; }
.bar > i { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--text); }
.status-over { color: var(--stress); font-weight: 600; }
.status-under { color: var(--caution); font-weight: 600; }
.status-ok { color: var(--calm); }
.chart { width: 100%; height: 300px; }
.chart.tall { height: 380px; }
.spark { width: 100%; height: 56px; margin: 6px 0; }
.ind .top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.ind .val { font-size: 20px; font-weight: 650; font-variant-numeric: tabular-nums; }
.ind p { margin: 4px 0 6px; font-size: 13.5px; }
.stale { color: var(--stress); font-size: 12px; font-weight: 600; }
button, .btn {
  font: inherit; font-size: 13.5px; padding: 6px 12px; border-radius: 7px; border: 1px solid var(--line);
  background: var(--panel); color: var(--text); cursor: pointer; display: inline-block;
}
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.link { border: 0; background: none; color: var(--accent); padding: 0; }
button:disabled { opacity: .6; cursor: wait; }
input, select, textarea {
  font: inherit; width: 100%; padding: 8px 10px; border-radius: 7px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text);
}
textarea.code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; min-height: 320px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.row > * { flex: 0 0 auto; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 14px; }
.error { color: var(--stress); background: var(--stress-bg); padding: 8px 12px; border-radius: 8px; white-space: pre-wrap; }
.coach-answer { margin-top: 10px; padding: 10px 14px; border-left: 3px solid var(--accent); background: var(--bg); border-radius: 6px; }
.coach-answer p:first-child { margin-top: 0; }
.coach-error { margin-top: 10px; color: var(--caution); font-size: 13.5px; }
.htmx-indicator { display: none; color: var(--muted); font-size: 13px; }
.htmx-request .htmx-indicator, .htmx-request.htmx-indicator { display: inline; }
pre.yaml { background: var(--bg); padding: 10px 12px; border-radius: 8px; overflow-x: auto; font-size: 12.5px; }
.lesson { max-width: 760px; }
.lesson h2 { margin-top: 18px; }
.login { max-width: 360px; margin: 60px auto; }
.pill-list { display: flex; flex-wrap: wrap; gap: 6px; }
details summary { cursor: pointer; color: var(--accent); }
@media (max-width: 640px) {
  header.top { padding: 8px 12px; gap: 8px; }
  main { padding: 14px 10px 50px; }
  .kpi .v { font-size: 20px; }
}