:root {
  --bg: #f7f7f5; --card: #fff; --ink: #1b1b1f; --muted: #5f6068; --line: #e2e2dd; --accent: #2d5bd7;
  --ok: #1f7a43; --ok-bg: #e5f4ea; --warn: #8a5a00; --warn-bg: #fff3d6; --bad: #b3261e; --bad-bg: #fde7e5; --code: #f0f0ec;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131316; --card: #1c1c21; --ink: #ececf0; --muted: #a2a3ad; --line: #30313a; --accent: #8fb0ff;
    --ok: #7bd69b; --ok-bg: #173323; --warn: #f2c66d; --warn-bg: #3a2e12; --bad: #ff9a90; --bad-bg: #3d1916; --code: #24242b;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 40px; }
.eyebrow { margin: 0; color: var(--accent); font-weight: 600; font-size: 14px; letter-spacing: .02em; }
h1 { margin: 4px 0 8px; font-size: clamp(26px, 5vw, 36px); line-height: 1.15; }
h2 { font-size: 20px; margin: 28px 0 8px; }
h3 { font-size: 16px; margin: 20px 0 6px; }
.lede { max-width: 70ch; color: var(--muted); }
.links a, a { color: var(--accent); }
code, pre { font-family: ui-monospace, "Cascadia Mono", Menlo, monospace; font-size: 13px; }
code { background: var(--code); padding: 1px 5px; border-radius: 4px; }
pre { background: var(--code); padding: 12px; border-radius: 8px; overflow: auto; max-height: 420px; white-space: pre-wrap; word-break: break-word; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 20px 0; }
.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
.row.end { justify-content: space-between; align-items: center; margin-top: 12px; }
.grow { flex: 1 1 260px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; font-weight: 600; margin-top: 10px; }
input, select, textarea, button { font: inherit; color: inherit; }
input, select, textarea { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; width: 100%; font-weight: 400; }
textarea { min-height: 84px; }
button { background: var(--accent); color: #fff; border: 0; border-radius: 8px; padding: 10px 18px; font-weight: 600; cursor: pointer; }
@media (prefers-color-scheme: dark) { button { color: #111; } }
button:disabled { opacity: .55; cursor: wait; }
.desc { color: var(--muted); margin: 10px 0 0; font-size: 14px; }
.banner { background: var(--warn-bg); color: var(--warn); border-radius: 8px; padding: 10px 12px; font-size: 14px; font-weight: 600; }
.muted { color: var(--muted); font-size: 14px; }
.error { background: var(--bad-bg); color: var(--bad); border-radius: 8px; padding: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.scroll { overflow-x: auto; }
.chip { display: inline-block; border-radius: 99px; padding: 1px 8px; font-size: 12px; font-weight: 700; }
.chip.ok, .chip.good, .chip.FAST { background: var(--ok-bg); color: var(--ok); }
.chip.warning, .chip.needs-improvement, .chip.AVERAGE, .chip.info { background: var(--warn-bg); color: var(--warn); }
.chip.error, .chip.bad, .chip.poor, .chip.SLOW { background: var(--bad-bg); color: var(--bad); }
.stats { display: flex; flex-wrap: wrap; gap: 10px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; min-width: 120px; }
.stat b { display: block; font-size: 24px; }
.bar { height: 8px; background: var(--line); border-radius: 99px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); }
ul.plain { padding-left: 18px; }
.outline li { list-style: none; }
details summary { cursor: pointer; font-weight: 600; margin: 8px 0; }
footer { padding: 24px 16px 48px; }
.msg { border-left: 3px solid var(--line); padding-left: 12px; margin: 14px 0; }
.msg.client { border-color: var(--accent); }
.msg .who { font-size: 13px; font-weight: 700; color: var(--muted); }