:root {
  color-scheme: light dark;
  --fg: #14161a;
  --muted: #5c6470;
  --bg: #ffffff;
  --panel: #f6f7f9;
  --line: #d9dde3;
  --ok: #0a7d43;
  --ok-bg: #e6f4ec;
  --bad: #b42318;
  --bad-bg: #fdecea;
  --unknown: #8a6100;
  --unknown-bg: #fdf4e0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e7e9ee; --muted: #9aa2b0; --bg: #14161a; --panel: #1c1f26; --line: #2c313a;
    --ok: #6fd39b; --ok-bg: #10281c; --bad: #f2847a; --bad-bg: #2c1512; --unknown: #e3c07a; --unknown-bg: #2a2110;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0 auto; padding: 2.5rem 1.25rem 4rem; max-width: 62rem;
  font: 16px/1.6 ui-sans-serif, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--fg); background: var(--bg);
}
.brand { margin: 0; color: var(--muted); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin: .2rem 0 .6rem; font-size: 1.9rem; }
.lede { margin: 0 0 2rem; color: var(--muted); max-width: 46rem; }
form { margin: 0 0 .75rem; }
label { display: block; margin-bottom: .4rem; font-weight: 600; font-size: .9rem; }
.row { display: flex; gap: .6rem; flex-wrap: wrap; }
input {
  flex: 1 1 20rem; padding: .7rem .8rem; font: inherit; color: var(--fg);
  background: var(--panel); border: 1px solid var(--line); border-radius: .5rem;
}
button {
  padding: .7rem 1.4rem; font: inherit; font-weight: 600; color: #fff; cursor: pointer;
  background: #2a5bd7; border: 0; border-radius: .5rem;
}
button[disabled] { opacity: .55; cursor: progress; }
.hint { color: var(--muted); font-size: .88rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .86em; }
.hash { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .78rem; word-break: break-all; }
.verdict { display: flex; align-items: baseline; gap: .8rem; margin: 1.5rem 0 .3rem; padding: 1rem 1.2rem; border-radius: .6rem; }
.verdict h2 { margin: 0; font-size: 1.3rem; }
.verdict p { margin: 0; font-size: .9rem; }
.v-verified { background: var(--ok-bg); color: var(--ok); }
.v-failed { background: var(--bad-bg); color: var(--bad); }
.v-unverifiable { background: var(--unknown-bg); color: var(--unknown); }
section.block { margin-top: 2rem; }
h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
ul.checks { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); border-radius: .6rem; overflow: hidden; }
ul.checks li { padding: .85rem 1rem; border-top: 1px solid var(--line); display: grid; grid-template-columns: 4.5rem 1fr; gap: .9rem; }
ul.checks li:first-child { border-top: 0; }
.pill { font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-align: center; padding: .2rem .3rem; border-radius: .3rem; height: fit-content; }
.p-pass { background: var(--ok-bg); color: var(--ok); }
.p-fail { background: var(--bad-bg); color: var(--bad); }
.p-unknown { background: var(--unknown-bg); color: var(--unknown); }
.c-label { font-weight: 600; }
.c-detail { color: var(--muted); font-size: .88rem; margin-top: .15rem; }
details { border: 1px solid var(--line); border-radius: .6rem; padding: .8rem 1rem; margin-top: .8rem; background: var(--panel); }
summary { cursor: pointer; font-weight: 600; }
dl { display: grid; grid-template-columns: minmax(8rem, max-content) 1fr; gap: .35rem .9rem; margin: .9rem 0 0; }
dt { color: var(--muted); font-size: .85rem; }
dd { margin: 0; }
table { border-collapse: collapse; width: 100%; margin-top: .8rem; font-size: .8rem; }
th, td { text-align: left; padding: .35rem .5rem; border-bottom: 1px solid var(--line); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; word-break: break-all; }
th { color: var(--muted); font-weight: 600; }
.error { color: var(--bad); }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }