/* ISO 27045 Revision Checker
   Seed: "big data current, eight channels, instrument tape, indigo and chalk, condensed sans headings,
   mono numerals, a left clause rail instead of a card grid".
   Palette, layout and type are derived from that seed, not from a sibling build. */

:root {
  --ink: #101a2c;
  --ink-soft: #4b566b;
  --chalk: #fbfaf6;
  --panel: #f4f1e8;
  --copper: #a9502c;
  --copper-deep: #7f3a1f;
  --sea: #2b6459;
  --rule: #d8d3c6;
  --rule-strong: #b9b2a1;
  --focus: #1b4f9c;
  --white: #ffffff;
  --sans: "Arial Narrow", "Liberation Sans Narrow", "Helvetica Neue Condensed", "Helvetica Neue", Arial, sans-serif;
  --serif: Charter, "Bitstream Charter", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--chalk); color: var(--ink); font-family: var(--serif); font-size: 17px; line-height: 1.58; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--copper); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--copper-deep); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
h1, h2, h3, h4 { font-family: var(--sans); font-weight: 700; line-height: 1.06; letter-spacing: -0.01em; margin: 0 0 12px; font-stretch: condensed; }
h1 { font-size: clamp(38px, 5.2vw, 64px); }
h2 { font-size: clamp(26px, 3vw, 36px); margin-top: 8px; }
h3 { font-size: 22px; }
p { margin: 0 0 15px; }
p, li, td, th, dd, dt, summary, figcaption, label, legend { font-size: 17px; line-height: 1.58; }
ul, ol { margin: 0 0 18px; padding-left: 22px; }
li { margin: 7px 0; }
strong, b { font-weight: 700; }
small, .small { font-size: 14px; line-height: 1.55; }
.hint { font-size: 14px; line-height: 1.6; color: var(--ink-soft); max-width: 70ch; }
.dim { color: var(--ink-soft); font-weight: 400; }
.mono { font-family: var(--mono); font-size: 15px; }
.sr { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--chalk); padding: 12px 18px; z-index: 40; }
.skip:focus { left: 12px; top: 12px; }
.wrap { width: min(1200px, calc(100% - 48px)); margin: 0 auto; }
.wrap.narrow { width: min(780px, calc(100% - 48px)); }
.wrapin { width: min(1080px, 100%); margin: 0 auto; }

/* record tape */
.tape { background: var(--ink); color: var(--chalk); }
.tape-in { display: flex; gap: 26px; flex-wrap: wrap; align-items: center; padding: 9px 0; font-family: var(--mono); font-size: 14px; line-height: 1.4; }
.tape .t-item { display: inline-flex; gap: 6px; align-items: baseline; flex-wrap: wrap; }
.tape b { color: #f0c9a8; font-weight: 700; }
.tape .t-dim { color: #b9c2d2; }
.tape a { color: var(--chalk); text-decoration: none; border-bottom: 1px solid #6a7488; min-height: 24px; display: inline-flex; align-items: center; }
.tape a:hover { border-bottom-color: var(--chalk); }

/* masthead */
.mast { background: var(--chalk); border-bottom: 1px solid var(--rule); }
.mast-in { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 0; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; color: var(--ink); }
.brand .glyph { width: 52px; height: 44px; display: grid; place-items: center; font-family: var(--mono); font-size: 14px; font-weight: 700; color: var(--chalk); background: var(--ink); border-bottom: 4px solid var(--copper); }
.brand .bname { display: block; font-family: var(--sans); font-size: 21px; font-weight: 700; line-height: 1.1; letter-spacing: -0.01em; }
.brand .bsub { display: block; font-family: var(--mono); font-size: 14px; letter-spacing: .04em; color: var(--ink-soft); margin-top: 4px; }
.mainnav { display: flex; gap: 4px; flex-wrap: wrap; }
.mainnav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 11px; font-family: var(--sans); font-size: 16px; font-weight: 700; color: var(--ink); text-decoration: none; border-bottom: 2px solid transparent; }
.mainnav a:hover { border-bottom-color: var(--copper); color: var(--copper-deep); }
.mainnav a[aria-current="page"] { border-bottom-color: var(--copper); }

/* opening */
.opening { padding: 34px 0 0; }
.open-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 40px; align-items: end; }
.kicker { font-family: var(--mono); font-size: 14px; letter-spacing: .04em; text-transform: uppercase; color: var(--copper); margin: 0 0 14px; }
.standfirst { font-size: 20px; line-height: 1.5; color: #26324a; max-width: 62ch; }
.trustline { font-family: var(--sans); font-size: 17px; line-height: 1.45; border-left: 3px solid var(--sea); padding-left: 14px; margin: 20px 0 12px; }
.badges { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 18px; }
.chip { display: inline-flex; align-items: center; min-height: 28px; padding: 3px 10px; border: 1px solid var(--rule-strong); border-radius: 999px; font-family: var(--mono); font-size: 14px; letter-spacing: .02em; background: var(--panel); color: var(--ink); }
.rowbtns { display: flex; gap: 12px; flex-wrap: wrap; margin: 18px 0 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; background: var(--copper); color: var(--white); font-family: var(--sans); font-size: 17px; font-weight: 700; text-decoration: none; border: 2px solid var(--copper); border-radius: 2px; }
.btn:hover { background: var(--copper-deep); border-color: var(--copper-deep); color: var(--white); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--rule-strong); }
.btn.ghost:hover { border-color: var(--ink); color: var(--ink); }
.open-photo { margin: 0; position: relative; }
.open-photo img { width: 100%; height: clamp(320px, 44vw, 520px); object-fit: cover; filter: saturate(.9); }
.open-photo figcaption { background: var(--ink); color: var(--chalk); padding: 18px 20px; font-size: 16px; line-height: 1.5; max-width: 46ch; margin: -56px 0 0 24px; position: relative; }
.capk { display: block; font-family: var(--mono); font-size: 14px; text-transform: uppercase; letter-spacing: .04em; color: #f0c9a8; margin-bottom: 8px; }

/* result band */
.band { background: var(--panel); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); margin: 34px 0 0; padding: 26px 0; }
.resblank { max-width: 78ch; }
.resblank p { margin-bottom: 10px; }

/* chapter rail */
.chap { display: grid; grid-template-columns: 148px minmax(0, 1fr); gap: 28px; padding: 40px 0; border-top: 1px solid var(--rule); }
.chap .rail { position: sticky; top: 16px; align-self: start; }
.rnum { display: block; font-family: var(--mono); font-size: 30px; font-weight: 700; color: var(--copper); line-height: 1; }
.rlab { display: block; font-family: var(--mono); font-size: 14px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); margin-top: 10px; border-top: 1px solid var(--rule-strong); padding-top: 8px; }
.chap .body { min-width: 0; }
.chap .body p, .chap .body ul, .chap .body ol, .chap .body table { max-width: 72ch; }
.chap .body table.wide { max-width: 100%; }
.unit .body p { max-width: 70ch; }

/* unit head */
.unithead { padding: 40px 0 8px; max-width: 900px; }
.unithead h1 { margin-bottom: 16px; }
.unithead .standfirst { font-size: 20px; }

/* tables */
table.data { width: 100%; border-collapse: collapse; margin: 16px 0 26px; font-size: 16px; }
table.data caption { text-align: left; font-family: var(--mono); font-size: 14px; letter-spacing: .03em; text-transform: uppercase; color: var(--ink-soft); padding: 0 0 8px; }
table.data th, table.data td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--rule); font-size: 16px; line-height: 1.5; }
table.data thead th { font-family: var(--sans); font-size: 15px; letter-spacing: .01em; border-bottom: 2px solid var(--ink); }
table.data th[scope="row"] { width: 34%; color: var(--ink-soft); font-weight: 400; }
table.data td.fill { color: var(--ink-soft); font-style: italic; }
table.data tbody tr:last-child td, table.data tbody tr:last-child th { border-bottom: none; }

/* cards */
.chargrid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); margin: 18px 0 26px; }
.charcard { display: flex; flex-direction: column; gap: 8px; padding: 18px 16px 16px; background: var(--chalk); text-decoration: none; color: var(--ink); min-height: 180px; }
.charcard:hover { background: var(--panel); }
.cnum { font-family: var(--mono); font-size: 14px; color: var(--copper); letter-spacing: .04em; }
.charcard b { font-family: var(--sans); font-size: 22px; line-height: 1.1; }
.crisk { font-size: 15px; line-height: 1.45; color: var(--ink-soft); }
.clink { margin-top: auto; font-family: var(--sans); font-size: 14px; font-weight: 700; color: var(--copper); }
.smallgrid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.smallgrid .charcard { min-height: 120px; }

/* change table */
.change { border-top: 1px solid var(--rule); padding: 26px 0 8px; }
.ctop { display: flex; gap: 14px; align-items: center; margin: 0 0 6px; }
.ctag { font-family: var(--mono); font-size: 14px; letter-spacing: .04em; text-transform: uppercase; background: var(--ink); color: var(--chalk); padding: 3px 8px; }
.cgrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 30px; }
.cgrid p { margin: 0 0 6px; font-size: 16px; }
.fhead { font-family: var(--mono); font-size: 14px; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 6px; }

/* callouts, two column */
.callout { border-left: 3px solid var(--copper); background: var(--panel); padding: 14px 16px; margin: 18px 0; max-width: 72ch; }
.twocol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 40px; }
.subs { list-style: none; padding: 0; }
.subs li { border-bottom: 1px solid var(--rule); padding: 9px 0; }
.subs li:last-child { border-bottom: none; }
.evlist { list-style: none; padding: 0; }
.evlist li { border-left: 2px solid var(--sea); padding: 2px 0 2px 12px; margin: 9px 0; }
.actlist { list-style: none; padding: 0; }
.actlist li { border-top: 1px solid var(--rule); padding: 10px 0; }
.verdicts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); margin: 16px 0 22px; }
.verdict { background: var(--chalk); padding: 14px 16px; }
.verdict b { display: block; font-family: var(--sans); font-size: 19px; margin-bottom: 4px; }
.verdict p { font-size: 15px; margin: 0; color: var(--ink-soft); }

/* plans */
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; margin: 26px 0 10px; }
.plan { border: 1px solid var(--rule-strong); background: var(--chalk); padding: 24px 22px; display: flex; flex-direction: column; }
.plan .ptag { font-family: var(--mono); font-size: 14px; text-transform: uppercase; color: var(--copper); margin: 0 0 6px; }
.plan h2 { font-size: 30px; }
.price { font-family: var(--sans); font-size: 40px; font-weight: 700; line-height: 1; margin: 6px 0 16px; }
.price .dim { font-family: var(--mono); font-size: 14px; }
.ticks { list-style: none; padding: 0; margin: 0 0 20px; }
.ticks li { border-bottom: 1px solid var(--rule); padding: 8px 0 8px 24px; position: relative; font-size: 16px; }
.ticks li:before { content: ""; position: absolute; left: 2px; top: 15px; width: 9px; height: 9px; border-left: 2px solid var(--sea); border-bottom: 2px solid var(--sea); transform: rotate(-45deg); }
.buybox { border: 1px solid var(--rule-strong); background: var(--panel); padding: 22px; align-self: start; }
.buybox .price { margin-top: 0; }

/* check */
.checkwrap { align-items: start; }
.scopeform { margin: 0 0 10px; }
fieldset.q { border: 0; border-top: 1px solid var(--rule); margin: 0; padding: 18px 0 6px; min-width: 0; }
fieldset.q legend { font-family: var(--sans); font-size: 20px; font-weight: 700; line-height: 1.25; padding: 0 0 6px; }
.qnum { font-family: var(--mono); font-size: 14px; color: var(--copper); margin-right: 6px; }
.opts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
.opt { display: flex; gap: 10px; align-items: center; min-height: 48px; padding: 10px 12px; border: 1px solid var(--rule); background: var(--chalk); cursor: pointer; font-size: 16px; }
.opt:hover { border-color: var(--rule-strong); }
.opt input { width: 24px; height: 24px; accent-color: var(--copper); flex: none; }
.opt:has(input:checked) { border-color: var(--copper); background: #fdf6f1; }
.resultpanel { border: 2px solid var(--ink); background: var(--chalk); padding: 22px; position: sticky; top: 16px; }
.resultpanel h2 { font-size: 28px; margin-bottom: 10px; }
.resstate { font-size: 17px; line-height: 1.5; }
.resbody h3 { margin-top: 16px; }
.resbody .tag { display: inline-block; font-family: var(--mono); font-size: 14px; padding: 2px 8px; background: var(--ink); color: var(--chalk); margin-bottom: 8px; }
.resbody ul { padding-left: 20px; }
.resbody .act { border-top: 1px solid var(--rule); padding-top: 8px; }
.resbody .act b { display: block; }

/* answers */
.ansgrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); margin: 22px 0; }
.anscard { display: flex; flex-direction: column; gap: 8px; padding: 20px; background: var(--chalk); text-decoration: none; color: var(--ink); min-height: 140px; }
.anscard:hover { background: var(--panel); }
.anscard b { font-family: var(--sans); font-size: 21px; line-height: 1.15; }
.anscard span { font-size: 15px; color: var(--ink-soft); }
.ansfirst { font-size: 22px; line-height: 1.45; }

/* market */
.market { border-top: 1px solid var(--rule); padding: 26px 0 6px; }
.market h2 { font-size: 32px; }
.fw { border-left: 2px solid var(--rule-strong); padding-left: 14px; margin: 14px 0; }
.fname2 { font-family: var(--sans); font-size: 20px; font-weight: 700; margin: 0 0 4px; }
.fw p { margin: 0 0 4px; font-size: 16px; }
.ctrl { columns: 2; column-gap: 28px; padding-left: 18px; }
.ctrl li { font-size: 15px; break-inside: avoid; margin: 4px 0; }
details { border-top: 1px solid var(--rule); padding: 10px 0; }
details summary { font-family: var(--sans); font-size: 19px; font-weight: 700; cursor: pointer; min-height: 32px; }
details p { margin-top: 8px; }

/* grounding, provenance, sources */
.ground { background: var(--ink); color: var(--chalk); padding: 26px 28px; margin: 12px 0 0; }
.ground h2 { color: var(--chalk); font-size: 30px; margin-top: 12px; }
.ground .trustline { border-left-color: #f0c9a8; color: var(--chalk); }
.ground .chip { background: transparent; border-color: #59657c; color: var(--chalk); }
.ground .small { color: #c3cad8; }
.fwlist { list-style: none; padding: 0; }
.fwlist li { border-bottom: 1px solid #33405a; padding: 8px 0; font-size: 16px; }
.fwlist a { color: #f0c9a8; }
.fwlist .dim { color: #b9c2d2; }
.prov { border-top: 3px double var(--rule-strong); margin: 34px 0; padding-top: 16px; max-width: 84ch; }
.prov p { font-size: 15px; line-height: 1.6; color: var(--ink-soft); }
.prov b { color: var(--ink); }
.srcbox { border-top: 1px solid var(--rule); padding-top: 12px; }
.srcbox ul { list-style: none; padding: 0; }
.srcbox li { font-size: 15px; border-bottom: 1px solid var(--rule); padding: 8px 0; }
.srclast { border-top: 1px solid var(--rule); }

/* footer */
.foot { background: var(--ink); color: #d9dee8; margin-top: 50px; padding: 38px 0 22px; }
.foot-in { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.foot a { color: var(--chalk); }
.foot .fname { font-family: var(--sans); font-size: 21px; font-weight: 700; color: var(--chalk); margin: 0 0 8px; }
.foot .fhead { font-family: var(--mono); font-size: 14px; letter-spacing: .05em; text-transform: uppercase; color: #9aa6bd; margin: 0 0 8px; }
.foot ul { list-style: none; padding: 0; }
.foot li { margin: 4px 0; font-size: 15px; }
.foot p { font-size: 15px; }
.foot .small { color: #aab4c6; }
.footbase { border-top: 1px solid #33405a; margin-top: 26px; padding-top: 14px; }

/* responsive */
@media (max-width: 980px) {
  .open-grid { grid-template-columns: 1fr; }
  .open-photo img { height: 340px; }
  .chargrid, .smallgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-in { grid-template-columns: 1fr 1fr; }
  .plans, .twocol, .ansgrid, .verdicts, .cgrid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 17px; }
  .wrap, .wrap.narrow { width: min(100% - 32px, 1200px); }
  .chap { grid-template-columns: 1fr; gap: 12px; padding: 30px 0; }
  .chap .rail { position: static; display: flex; gap: 10px; align-items: baseline; }
  .rnum { font-size: 22px; }
  .rlab { border-top: 0; padding-top: 0; margin-top: 0; }
  .open-photo figcaption { margin: -40px 0 0 12px; }
  .resultpanel { position: static; }
  .opts { grid-template-columns: 1fr; }
  .ctrl { columns: 1; }
  .mainnav a { padding: 0 8px; font-size: 15px; }
  .tape-in { gap: 10px 18px; }
  table.data.wide { display: block; overflow-x: auto; }
  .price { font-size: 34px; }
  .foot-in { grid-template-columns: 1fr; }
}

/* readable targets: every link in prose and chrome is at least 24px tall (R-182) */
main a, .foot a, .prov a, .srcbox a { display: inline-flex; align-items: center; min-height: 24px; }
main p a, main li a, .prov p a { margin: 1px 0; }
.foot li a, .foot p a { font-size: 16px; line-height: 1.55; }