/* Plain, legible, and deliberately unsold-to.
   The product sits in a category full of scam letters, so anything that looks like marketing works
   against it. No gradients, no drop shadows, no hero image, no pill buttons. It should read like a
   record, because that is what it is. */

:root {
  --bg: #fbfbf9;
  --panel: #ffffff;
  --ink: #17181a;
  --ink-soft: #55585e;
  --ink-faint: #7c8189;
  --rule: #dfe0dc;
  --rule-strong: #c3c5c0;
  --accent: #1c4d7c;
  --accent-ink: #ffffff;
  --flag: #8a3324;
  --flag-bg: #fdf3f1;
  --warn: #7a5a12;
  --warn-bg: #fdf8ec;
  --ok: #2c5f3f;
  --ok-bg: #f1f7f2;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "DejaVu Sans Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14151700; --bg: #141517;
    --panel: #1c1e21;
    --ink: #e9e9e6;
    --ink-soft: #adb1b6;
    --ink-faint: #868b91;
    --rule: #2e3135;
    --rule-strong: #43474c;
    --accent: #7fb2dd;
    --accent-ink: #101216;
    --flag: #e8a294;
    --flag-bg: #2c1f1c;
    --warn: #e0c07a;
    --warn-bg: #2a2418;
    --ok: #9dc9ac;
    --ok-bg: #1b2620;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
}

.wrap { max-width: 46rem; margin: 0 auto; padding: 0 1.25rem 5rem; }
.wide { max-width: 66rem; }

/* ── masthead ─────────────────────────────────────────────────────────── */
header.site {
  border-bottom: 1px solid var(--rule);
  background: var(--panel);
}
header.site .wrap { padding-top: 1.1rem; padding-bottom: 0; }
header.site a.brand {
  font: 600 1rem/1.2 var(--sans);
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
header.site .tag {
  color: var(--ink-faint);
  font-size: 0.8rem;
  margin: 0.2rem 0 0;
}
nav.site { margin-top: 0.9rem; display: flex; flex-wrap: wrap; gap: 0 1.4rem; }
nav.site a {
  display: block;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
nav.site a:hover { color: var(--ink); }
nav.site a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); font-weight: 600; }

/* ── type ─────────────────────────────────────────────────────────────── */
h1 { font-size: 1.7rem; line-height: 1.25; letter-spacing: -0.02em; margin: 2.4rem 0 0.6rem; font-weight: 650; }
h2 { font-size: 1.15rem; line-height: 1.3; margin: 2.4rem 0 0.5rem; font-weight: 650; }
h3 { font-size: 0.95rem; margin: 1.6rem 0 0.35rem; font-weight: 650; }
p { margin: 0 0 1rem; }
.lede { font-size: 1.05rem; color: var(--ink-soft); margin-bottom: 1.8rem; }
.small { font-size: 0.85rem; color: var(--ink-soft); }
.faint { color: var(--ink-faint); }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
code, .mono, .num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
strong { font-weight: 650; }

/* ── the form ─────────────────────────────────────────────────────────── */
form.lookup { margin: 0 0 1.6rem; }
label.field { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.4rem; }
.row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
input[type="text"], textarea {
  font: 1rem/1.4 var(--mono);
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  padding: 0.7rem 0.75rem;
  width: 100%;
}
input[type="text"] { flex: 1 1 12rem; min-width: 0; }
textarea { min-height: 9rem; resize: vertical; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
button {
  font: 600 0.95rem/1 var(--sans);
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid var(--accent);
  border-radius: 3px;
  padding: 0.75rem 1.15rem;
  cursor: pointer;
}
button:hover { filter: brightness(1.1); }
button[disabled] { opacity: 0.55; cursor: default; filter: none; }
button.quiet { background: transparent; color: var(--accent); }
.hint { font-size: 0.8rem; color: var(--ink-faint); margin: 0.5rem 0 0; }

/* ── result card ──────────────────────────────────────────────────────── */
.card {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1.25rem;
  margin: 1.5rem 0;
}
.card.flag { border-left: 3px solid var(--flag); background: var(--flag-bg); }
.card.warn { border-left: 3px solid var(--warn); background: var(--warn-bg); }
.card.ok   { border-left: 3px solid var(--ok);   background: var(--ok-bg); }

.verdict { font-size: 1.2rem; font-weight: 650; margin: 0 0 0.4rem; letter-spacing: -0.01em; }
.card.flag .verdict { color: var(--flag); }
.card.warn .verdict { color: var(--warn); }
.card.ok   .verdict { color: var(--ok); }
.who { font-size: 1rem; font-weight: 650; margin: 0 0 0.1rem; }
.where { font-size: 0.85rem; color: var(--ink-soft); margin: 0 0 1rem; }

dl.facts { display: grid; grid-template-columns: auto 1fr; gap: 0.45rem 1.1rem; margin: 1.1rem 0 0; font-size: 0.9rem; }
dl.facts dt { color: var(--ink-faint); }
dl.facts dd { margin: 0; font-family: var(--mono); font-variant-numeric: tabular-nums; }
dl.facts dd.plain { font-family: var(--sans); }

.note {
  border-top: 1px solid var(--rule);
  margin-top: 1.1rem;
  padding-top: 0.9rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

/* ── callouts ─────────────────────────────────────────────────────────── */
.callout {
  border: 1px solid var(--rule-strong);
  border-left: 3px solid var(--flag);
  background: var(--panel);
  border-radius: 3px;
  padding: 1rem 1.15rem;
  margin: 1.6rem 0;
}
.callout h2, .callout h3 { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }
blockquote {
  margin: 1.2rem 0;
  padding: 0 0 0 1rem;
  border-left: 2px solid var(--rule-strong);
  color: var(--ink-soft);
  font-size: 0.95rem;
}
blockquote cite { display: block; margin-top: 0.5rem; font-size: 0.8rem; font-style: normal; color: var(--ink-faint); }

/* ── tables ───────────────────────────────────────────────────────────── */
.scroll { overflow-x: auto; margin: 1.4rem 0; }
table { border-collapse: collapse; width: 100%; font-size: 0.875rem; }
th, td { text-align: left; padding: 0.55rem 0.7rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-faint); font-weight: 650; white-space: nowrap; }
td.n, th.n { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
tbody tr:hover { background: var(--bg); }
td .label { font-size: 0.75rem; font-weight: 650; text-transform: uppercase; letter-spacing: 0.03em; }
td .label.flag { color: var(--flag); }
td .label.warn { color: var(--warn); }
td .label.ok { color: var(--ok); }

/* ── status line ──────────────────────────────────────────────────────── */
.status { font-size: 0.875rem; color: var(--ink-soft); margin: 1.2rem 0; }
.status.err { color: var(--flag); }

footer.site {
  border-top: 1px solid var(--rule);
  margin-top: 4rem;
  padding-top: 1.4rem;
  font-size: 0.82rem;
  color: var(--ink-faint);
}
footer.site p { margin: 0 0 0.5rem; }

ul.tight { padding-left: 1.2rem; margin: 0 0 1rem; }
ul.tight li { margin-bottom: 0.4rem; }

@media (max-width: 34rem) {
  h1 { font-size: 1.45rem; }
  dl.facts { grid-template-columns: 1fr; gap: 0.15rem; }
  dl.facts dt { margin-top: 0.6rem; }
}