/* agentready web page. Self-contained: system fonts only (the CSP allows no external ones). */
:root {
  --fg: #16181d; --muted: #5b6270; --bg: #ffffff; --line: #dfe2e7; --soft: #f5f6f8;
  --accent: #1d4e9e; --btn: #16181d; --btn-fg: #ffffff;
  --warn: #8a4b00; --ok: #1d7a4c; --focus: #1d4e9e;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #eceef2; --muted: #a0a8b5; --bg: #14161a; --line: #2d3138; --soft: #1c1f25;
    --accent: #8db3f2; --btn: #eceef2; --btn-fg: #14161a; --warn: #e5b068; --ok: #6fd1a0; --focus: #8db3f2;
  }
}
[hidden] { display: none !important; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.55 var(--sans); font-variant-numeric: tabular-nums; }
a { color: var(--accent); }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
code, pre.code { font: 12.5px/1.45 ui-monospace, Menlo, Consolas, monospace; background: var(--soft); padding: 2px 5px; border-radius: 4px; overflow-wrap: anywhere; white-space: pre-wrap; }
pre.code { display: block; padding: 10px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--muted); }
.meta { font-size: 13px; color: var(--muted); margin: 6px 0; }
.url { overflow-wrap: anywhere; }
.pre { white-space: pre-wrap; overflow-wrap: anywhere; }

.page { max-width: 880px; margin: 0 auto; padding: 0 24px 64px; }

/* top bar */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 28px 0 8px; flex-wrap: wrap; }
.wordmark { font: italic 400 30px/1 var(--serif); letter-spacing: -0.01em; color: var(--fg); text-decoration: none; }
.topnav { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.toplink { background: none; border: 0; padding: 4px 0; color: var(--accent); font-size: 15px; text-decoration: none; }
.toplink:hover { text-decoration: underline; }
.plugin-btn { border: 1px solid var(--accent); border-radius: 999px; padding: 7px 16px; }
.plugin-btn:hover { background: var(--accent); color: var(--bg); text-decoration: none; }

/* landing */
.hero { padding: 72px 0 24px; }
.display { font: 400 clamp(36px, 6.4vw, 60px)/1.05 var(--serif); letter-spacing: -0.02em; margin: 0 0 20px; max-width: 16em; text-wrap: balance; }
.lede { font-size: 18px; line-height: 1.6; max-width: 38em; margin: 0 0 28px; }
.scanform { display: flex; gap: 12px; flex-wrap: wrap; align-items: stretch; max-width: 620px; }
.scanform input[type="text"], .coderow input { flex: 1 1 280px; padding: 14px 18px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg); font-size: 17px; min-width: 0; }
.coderow { flex: 1 1 100%; display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
.coderow input { border-radius: 10px; font-size: 16px; }
.pill { background: var(--btn); color: var(--btn-fg); border: 0; border-radius: 999px; padding: 14px 28px; font-weight: 600; font-size: 16px; }
.pill:disabled { opacity: .45; cursor: default; }
.linkbtn2 { background: none; border: 0; padding: 4px 0; color: var(--accent); font-size: 16px; text-decoration: underline; text-underline-offset: 3px; }
.error { color: var(--warn); font-weight: 600; margin: 16px 0; overflow-wrap: anywhere; }
.banner { border-left: 3px solid var(--warn); padding: 8px 12px; background: var(--soft); margin: 12px 0; }

/* progress */
.progress { margin-top: 28px; max-width: 620px; }
.progress-line { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.track { height: 4px; background: var(--line); border-radius: 2px; overflow: hidden; }
.track > span { display: block; height: 100%; width: 0; background: var(--accent); transition: width .4s ease; }
.steps { list-style: none; margin: 14px 0 0; padding: 0; font-size: 14px; }
.steps li { display: flex; gap: 12px; padding: 3px 0; color: var(--muted); }
.steps li.cur { color: var(--fg); font-weight: 600; }
.steps .st { min-width: 68px; }
@media (prefers-reduced-motion: reduce) { .track > span, .score-track > span { transition: none; } }

/* result */
#result { padding-top: 40px; }
.eyebrow { font-size: 14px; color: var(--muted); margin: 0 0 4px; }
.score { display: flex; align-items: baseline; gap: 18px; line-height: .95; }
.score-num { font: 400 clamp(110px, 22vw, 190px)/.9 var(--serif); letter-spacing: -0.04em; color: var(--accent); }
.score-max { font: 400 clamp(22px, 4vw, 34px)/1 var(--serif); color: var(--muted); }
.score-track { height: 3px; background: var(--line); border-radius: 2px; overflow: hidden; max-width: 340px; margin: 14px 0 34px; }
.score-track > span { display: block; height: 100%; width: 0; background: var(--accent); transition: width .6s ease; }
.headline { font: 400 clamp(32px, 5.6vw, 52px)/1.08 var(--serif); letter-spacing: -0.02em; margin: 0 0 20px; text-wrap: balance; }
#result .lede { margin-bottom: 4px; }
.block { margin-top: 56px; }
.label { font-size: 13px; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); padding-bottom: 12px; border-bottom: 1px solid var(--fg); }
.serif-h { font: 400 clamp(26px, 4vw, 36px)/1.15 var(--serif); letter-spacing: -0.01em; margin: 0 0 24px; }

.q { display: flex; justify-content: space-between; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.qname { font: 400 26px/1.2 var(--serif); margin: 0 0 4px; }
.qsent { margin: 0; color: var(--muted); }
.qstat { display: flex; align-items: flex-start; gap: 8px; font-weight: 600; white-space: nowrap; padding-top: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; margin-top: 7px; flex: 0 0 auto; }
.dot-ok { background: var(--ok); } .dot-warn { background: var(--warn); }
.qstat:has(.dot-ok) { color: var(--ok); } .qstat:has(.dot-warn) { color: var(--warn); }
@media (max-width: 560px) { .q { flex-direction: column; gap: 8px; } .qstat { padding-top: 0; } }

.stepsol { list-style: none; margin: 0; padding: 0; display: grid; gap: 28px; }
.stepsol > li { display: grid; grid-template-columns: 64px 1fr; gap: 8px 16px; align-items: start; }
.num { font: 400 52px/1 var(--serif); color: var(--accent); }
.steptitle { font-size: 18px; display: block; }
.stepline { margin: 2px 0 0; color: var(--muted); }
.stepbody .meta { margin: 4px 0 0; }
.stepbody > .detail { margin-top: 8px; }
.actions { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; margin: 40px 0 8px; }

.more > summary, .tech > summary { cursor: pointer; color: var(--accent); text-decoration: underline; text-underline-offset: 3px; list-style: none; padding: 6px 0; }
.more > summary::-webkit-details-marker, .tech > summary::-webkit-details-marker, .proto > summary::-webkit-details-marker, .detail > summary::-webkit-details-marker { display: none; }
.more[open] > summary { margin-bottom: 16px; }
#measuresRest { margin-top: 20px; }
.detail { font-size: 15px; }
.detail > summary { cursor: pointer; color: var(--accent); font-size: 14px; list-style: none; text-decoration: underline; text-underline-offset: 3px; }
.detail dl { margin: 10px 0 0; }
.detail dt { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-top: 10px; }
.detail dd { margin: 2px 0 0; }

.idea { padding: 14px 0; border-top: 1px solid var(--line); }
.idea label { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; }
.idea input[type="checkbox"] { width: 18px; height: 18px; margin-top: 4px; accent-color: var(--accent); flex: 0 0 auto; }
.mark { font-size: 12px; border: 1px solid var(--line); border-radius: 4px; padding: 0 6px; margin-right: 6px; white-space: nowrap; }

.tech { border-top: 1px solid var(--line); padding-top: 12px; }
.techbody { margin-top: 12px; }
.proto { border-top: 1px solid var(--line); padding: 4px 0; }
.proto > summary { cursor: pointer; font-weight: 600; padding: 10px 0; list-style: none; }
.proto > summary::after { content: "+"; float: right; color: var(--muted); }
.proto[open] > summary::after { content: "–"; }
.row { padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.logline { font: 12px/1.5 ui-monospace, Menlo, Consolas, monospace; overflow-wrap: anywhere; }
.list { list-style: none; margin: 0; padding: 0; }
.list > li { padding: 10px 0; border-top: 1px solid var(--line); }
.where { font-size: 13px; color: var(--muted); }

.foot { margin-top: 72px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 15px; }
.foot p { margin: 0 0 8px; }
.install { margin: 8px 0 0 20px; padding: 0; }