:root {
  --bg: #fbfaf7; --surface: #ffffff; --ink: #1b1d21; --muted: #575c66; --line: #dcdde1;
  --accent: #1f5fbf; --accent-ink: #ffffff; --ok: #1d6b3a; --ok-bg: #e5f4ea; --bad: #a3221b; --bad-bg: #fbe9e7;
  --warn: #7a5200; --warn-bg: #fdf2d8; --move: #1f5fbf; --move-bg: #e4edfb; --focus: #f2a20c;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171b; --surface: #1e2126; --ink: #eceef1; --muted: #a9afb9; --line: #343842;
    --accent: #7fb0ff; --accent-ink: #0d1420; --ok: #7fd69c; --ok-bg: #173323; --bad: #ff9a90; --bad-bg: #3a1c1a;
    --warn: #f3c661; --warn-bg: #3a2e12; --move: #9ec3ff; --move-bg: #1b2b45;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
header.site { border-bottom: 1px solid var(--line); background: var(--surface); }
header.site .wrap { display: flex; gap: 16px; align-items: center; justify-content: space-between; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; }
nav.top { display: flex; gap: 14px; flex-wrap: wrap; font-size: 0.92rem; }
h1 { font-size: clamp(1.6rem, 4.5vw, 2.3rem); line-height: 1.2; margin: 28px 0 8px; letter-spacing: -0.01em; }
h2 { font-size: 1.3rem; margin: 36px 0 10px; }
h3 { font-size: 1.05rem; margin: 20px 0 6px; }
.lede { color: var(--muted); margin: 0 0 18px; max-width: 70ch; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin: 16px 0; }
label { display: block; font-weight: 600; margin: 0 0 6px; }
textarea, input[type=text], input[type=email], input[type=number], select {
  width: 100%; font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px;
}
textarea { resize: vertical; min-height: 84px; }
button, .btn { font: inherit; font-weight: 600; border-radius: 8px; padding: 9px 14px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); cursor: pointer; }
button.ghost { background: transparent; color: var(--accent); }
button:disabled { opacity: 0.55; cursor: default; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.count { font-variant-numeric: tabular-nums; font-weight: 700; }
.count.over { color: var(--bad); }
.count.ok { color: var(--ok); }
.meter { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; margin: 8px 0 4px; }
.meter > span { display: block; height: 100%; background: var(--ok); width: 0; }
.meter.over > span { background: var(--bad); }
.issues { list-style: none; padding: 0; margin: 10px 0 0; }
.issues li { padding: 7px 10px; border-radius: 6px; margin: 6px 0; font-size: 0.95rem; }
.issues .required { background: var(--bad-bg); color: var(--bad); }
.issues .guideline { background: var(--warn-bg); color: var(--warn); }
.issues .pass { background: var(--ok-bg); color: var(--ok); }
.tokens { line-height: 2.1; margin: 8px 0; }
.tok { padding: 2px 5px; border-radius: 5px; margin-right: 2px; }
.tok.move { background: var(--move-bg); color: var(--move); }
.tok.drop { background: var(--bad-bg); color: var(--bad); text-decoration: line-through; }
.legend { font-size: 0.88rem; color: var(--muted); display: flex; gap: 14px; flex-wrap: wrap; }
.grid2 { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
@media (max-width: 720px) { .grid2 { grid-template-columns: 1fr; } }
.out-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.small { font-size: 0.88rem; color: var(--muted); }
.facts { border-left: 4px solid var(--accent); }
.facts ul { margin: 6px 0; padding-left: 20px; }
.pro { border: 2px solid var(--accent); }
.pro h2 { margin-top: 0; }
.pro .thanks { color: var(--ok); font-weight: 600; }
.pro .err { color: var(--bad); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 0.93rem; }
th, td { text-align: left; vertical-align: top; padding: 8px; border-bottom: 1px solid var(--line); }
th { background: var(--bg); position: sticky; top: 0; }
td textarea { min-height: 60px; min-width: 220px; font-size: 0.93rem; padding: 6px 8px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.8rem; font-weight: 700; white-space: nowrap; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.cards a.card { display: block; text-decoration: none; color: var(--ink); margin: 0; }
.cards a.card strong { color: var(--accent); }
details { border-bottom: 1px solid var(--line); padding: 10px 0; }
summary { cursor: pointer; font-weight: 600; }
footer.site { border-top: 1px solid var(--line); margin-top: 48px; padding: 20px 0 32px; color: var(--muted); font-size: 0.9rem; }
.ex { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9rem; background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px; overflow-wrap: anywhere; }
.card > h2:first-child { margin-top: 0; }
@media (max-width: 720px) {
  .table-wrap { border: 0; overflow: visible; }
  table, tbody, tr, td { display: block; width: 100%; }
  thead { display: none; }
  tr { border: 1px solid var(--line); border-radius: 8px; margin-bottom: 12px; padding: 4px 0; }
  td { border: 0; }
  td[data-label]::before { content: attr(data-label); display: block; font-weight: 600; font-size: 0.85rem; color: var(--muted); }
  td textarea { min-width: 0; }
}