:root {
  --bg: #ffffff;
  --surface: #f7f8fa;
  --border: #e3e6eb;
  --ink: #16191d;
  --ink-soft: #5a626e;
  --accent: #1c5d99;
  --accent-soft: #eaf1f8;
  --critical: #b3261e;
  --serious: #a24c00;
  --moderate: #5f4b8b;
  --advisory: #5a626e;
  --radius: 10px;
  --measure: 68ch;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101317;
    --surface: #171b21;
    --border: #262c35;
    --ink: #e8eaed;
    --ink-soft: #a2abb8;
    --accent: #7db3e8;
    --accent-soft: #17222e;
    --critical: #f2837c;
    --serious: #e0a267;
    --moderate: #b9a5e8;
    --advisory: #a2abb8;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.prose { max-width: var(--measure); }
header.site {
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(8px); z-index: 10;
}
header.site .wrap { display: flex; align-items: center; gap: 24px; height: 62px; }
.brand { font-weight: 650; letter-spacing: -0.01em; color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 9px; }
.brand svg { display: block; }
nav.site { margin-left: auto; display: flex; gap: 20px; flex-wrap: wrap; }
nav.site a { color: var(--ink-soft); text-decoration: none; font-size: 15px; }
nav.site a:hover, nav.site a[aria-current="page"] { color: var(--ink); }
h1 { font-size: clamp(30px, 4.4vw, 44px); line-height: 1.15; letter-spacing: -0.022em; margin: 0 0 16px; }
h2 { font-size: 25px; letter-spacing: -0.015em; margin: 48px 0 14px; }
h3 { font-size: 18px; margin: 30px 0 8px; }
p, li { color: var(--ink); }
.lede { font-size: 19px; color: var(--ink-soft); max-width: var(--measure); }
.muted { color: var(--ink-soft); font-size: 14px; }
main { padding: 56px 0 80px; }
.hero { padding: 24px 0 8px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 8px; }
.btn {
  display: inline-block; padding: 11px 20px; border-radius: var(--radius);
  text-decoration: none; font-weight: 560; border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { border-color: var(--border); color: var(--ink); }
.btn-ghost:hover { background: var(--surface); }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin: 26px 0; }
.card { border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; background: var(--surface); }
.card h3 { margin-top: 0; }
.card p { margin-bottom: 0; color: var(--ink-soft); font-size: 15px; }
.note { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 14px 18px; border-radius: 0 var(--radius) var(--radius) 0; margin: 24px 0; }
table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 18px 0; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft); font-weight: 600; }
.table-scroll { overflow-x: auto; }
.sev { font-size: 12px; font-weight: 650; text-transform: uppercase; letter-spacing: 0.04em; }
.sev-critical { color: var(--critical); }
.sev-serious { color: var(--serious); }
.sev-moderate { color: var(--moderate); }
.sev-advisory { color: var(--advisory); }
.price-table td:first-child { font-variant-numeric: tabular-nums; }
footer.site { border-top: 1px solid var(--border); padding: 32px 0 56px; color: var(--ink-soft); font-size: 14px; }
footer.site .wrap { display: flex; gap: 22px; flex-wrap: wrap; align-items: center; }
footer.site a { color: var(--ink-soft); }
footer.site .spacer { margin-left: auto; }
ul.checks { padding-left: 20px; }
ul.checks li { margin-bottom: 6px; }
code { background: var(--surface); padding: 2px 6px; border-radius: 5px; font-size: 0.9em; border: 1px solid var(--border); }

/* --- public checker --- */
.paste-area {
  min-height: 190px; border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 18px; background: var(--surface); overflow: auto; max-height: 340px;
}
.paste-area:focus { outline: 2px solid var(--accent); outline-offset: 2px; border-style: solid; }
.paste-area[data-empty="true"]::before {
  content: attr(data-placeholder); color: var(--ink-soft); pointer-events: none; display: block;
}
.paste-area img { max-width: 100%; }
.scorecard { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin: 26px 0 10px; }
.score-num { font-size: 42px; font-weight: 680; letter-spacing: -0.02em; line-height: 1; }
.pill { display: inline-block; padding: 4px 11px; border-radius: 999px; font-size: 13px; font-weight: 620; border: 1px solid var(--border); }
.pill-pass { background: #e6f4ea; color: #14532d; border-color: #bfe3ca; }
.pill-fail { background: #fdeceb; color: #7f1d1a; border-color: #f5c6c2; }
@media (prefers-color-scheme: dark) {
  .pill-pass { background: #12261a; color: #9ee2b4; border-color: #24503a; }
  .pill-fail { background: #2a1514; color: #f5a9a3; border-color: #592a27; }
}
.finding { border: 1px solid var(--border); border-left-width: 4px; border-radius: var(--radius); padding: 14px 16px; margin-bottom: 10px; background: var(--surface); }
.finding.critical { border-left-color: var(--critical); }
.finding.serious { border-left-color: var(--serious); }
.finding.moderate { border-left-color: var(--moderate); }
.finding.advisory { border-left-color: var(--advisory); }
.finding h4 { margin: 0 0 4px; font-size: 16px; }
.finding p { margin: 4px 0; font-size: 15px; }
.finding .evidence { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 6px 9px; display: inline-block; }
.controls { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 16px 0 6px; }
.hidden { display: none; }
textarea.raw { width: 100%; min-height: 190px; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; background: var(--surface); color: var(--ink); }
.card h2.card-title { font-size: 18px; margin: 0 0 8px; letter-spacing: -0.005em; }