/* ==========================================================================
   Scoperis — Sightline
   One calibrated line runs through the site. Sections hang from it like
   entries in a research file; photographs are plates on a dark ground.
   Tokens → Base → Header → Sightline → Plates → Components → Pages →
   Responsive → Motion → Print
   ========================================================================== */

/* ---------- Tokens ---------- */
:root{
  --evergreen:#0E4A49;
  --sand:#F3EEE6;
  --sage:#92A8A0;
  --graphite:#2F353B;
  --bronze:#B4874D;

  --evergreen-deep:#0A3A39;
  --evergreen-ink:#062423;
  --sand-raised:#F8F5EF;
  --sand-deep:#E9E2D6;
  --sage-pale:#C6D2CC;
  --sage-deep:#567068;
  --bronze-pale:#D8B482;
  --bronze-deep:#8A6332;
  --graphite-soft:#4C555C;

  --serif:'Playfair Display','Iowan Old Style',Georgia,'Times New Roman',serif;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --fs-display:clamp(2.6rem,1.4rem + 3.8vw,4.9rem);
  --fs-xl:clamp(2.1rem,1.4rem + 2.4vw,3.4rem);
  --fs-lg:clamp(1.7rem,1.25rem + 1.6vw,2.6rem);
  --fs-md:clamp(1.25rem,1.1rem + 0.7vw,1.6rem);
  --fs-sm:clamp(1.05rem,1rem + 0.25vw,1.15rem);
  --fs-lead:clamp(1.06rem,1rem + 0.35vw,1.2rem);
  --fs-fine:0.9rem;
  --fs-label:0.68rem;
  --fs-big:clamp(3rem,2rem + 3.6vw,5.4rem);

  --gap:clamp(18px,2.6vw,36px);
  --gutter:clamp(20px,5vw,60px);
  --sec:clamp(64px,8.5vw,128px);
  --maxw:1280px;
  --measure:62ch;

  --rule:rgba(47,53,59,.16);
  --rule-strong:rgba(47,53,59,.34);
  --rule-dark:rgba(146,168,160,.24);
  --rule-dark-strong:rgba(146,168,160,.45);

  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:74px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
[id]{ scroll-margin-top:calc(var(--header-h) + 20px); }

body{
  margin:0; background:var(--sand); color:var(--graphite);
  font-family:var(--sans); font-size:1.0625rem; line-height:1.6;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,canvas{ display:block; max-width:100%; }
img{ height:auto; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; cursor:pointer; background:none; border:none; }
ul,ol{ margin:0; padding:0; list-style:none; }
p{ margin:0; }
h1,h2,h3,h4{ margin:0; font-family:var(--serif); font-weight:500; color:var(--evergreen); text-wrap:balance; }
strong,b{ font-weight:600; color:var(--evergreen); }
em{ font-style:italic; }
::selection{ background:var(--evergreen); color:var(--sand); }

:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--bronze-deep); outline-offset:3px; border-radius:1px;
}
.sec-dark :where(a,button,summary,[tabindex]):focus-visible,
.hero :where(a,button):focus-visible,
.cta :where(a,button):focus-visible,
.plateband :where(a,button):focus-visible,
.ftr :where(a,button):focus-visible{ outline-color:var(--bronze-pale); }

/* ---------- Type utilities ---------- */
.lead{ font-size:var(--fs-lead); line-height:1.55; max-width:var(--measure); }
.fine{ font-size:var(--fs-fine); line-height:1.6; color:var(--graphite-soft); max-width:var(--measure); }
.muted{ color:var(--graphite-soft); }
.mono{ font-family:var(--mono); }
.t-md{ font-size:var(--fs-md); line-height:1.24; }
.vh{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0 0 0 0); clip-path:inset(50%); white-space:nowrap; border:0;
}
.label,.k,.tk,.pn{
  font-family:var(--mono); font-size:var(--fs-label); font-weight:500;
  letter-spacing:.18em; text-transform:uppercase; color:var(--bronze-deep);
}
.label{ display:block; }
.k{ display:block; margin-bottom:10px; }
.big{
  font-family:var(--serif); font-weight:500; font-size:var(--fs-big); line-height:.86;
  color:var(--bronze-deep); opacity:.62; letter-spacing:-.02em;
  font-variant-numeric:lining-nums tabular-nums;
}
.inline-link{ color:var(--bronze-deep); text-decoration:underline; text-underline-offset:3px; text-decoration-thickness:1px; }
.inline-link:hover{ color:var(--evergreen); }

/* ---------- Layout ---------- */
.wrap{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter); }
.sec{ padding-block:var(--sec); }
.sec + .sec{ padding-top:0; }
.sec-dark{ background:var(--evergreen); color:rgba(243,238,230,.84); padding-top:var(--sec) !important; }
.sec-dark + .sec{ padding-top:var(--sec); }
.sec-dark h1,.sec-dark h2,.sec-dark h3,.sec-dark h4{ color:var(--sand); }
.sec-dark strong,.sec-dark b{ color:var(--sand); }
.sec-dark .muted,.sec-dark .fine{ color:rgba(243,238,230,.7); }
.sec-dark .label,.sec-dark .k,.sec-dark .tk{ color:var(--bronze-pale); }
.sec-dark .big{ color:var(--bronze-pale); opacity:.55; }
.sec-dark .inline-link{ color:var(--bronze-pale); }
.sec-dark .inline-link:hover{ color:var(--sand); }
.sec-foot{ margin-top:clamp(28px,3.5vw,48px); }
.sec-lead{ padding-top:0; }
.sec-lead > .plateband{ margin-top:0; }
.sec-dark .sec-dark{ background:var(--evergreen-deep); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px; min-height:46px;
  font-family:var(--mono); font-size:.72rem; font-weight:500;
  letter-spacing:.13em; text-transform:uppercase;
  padding:13px 24px; border:1px solid var(--evergreen); color:var(--evergreen);
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.btn:hover{ background:var(--evergreen); color:var(--sand); }
.btn-light{ background:var(--sand); border-color:var(--sand); color:var(--evergreen); }
.btn-light:hover{ background:var(--bronze-pale); border-color:var(--bronze-pale); color:var(--evergreen-ink); }
.btn-ghost{ border-color:rgba(198,210,204,.5); color:var(--sand); }
.btn-ghost:hover{ background:rgba(243,238,230,.1); border-color:var(--sand); color:var(--sand); }
.btn-row{ display:flex; flex-wrap:wrap; gap:12px; }
.arw{ transition:transform .22s var(--ease); }
.btn:hover .arw{ transform:translateX(3px); }

/* ---------- Skip link + header ---------- */
.skip{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--evergreen); color:var(--sand); padding:12px 20px;
  font-family:var(--mono); font-size:var(--fs-fine);
}
.skip:focus{ left:12px; top:12px; }

.hdr{
  position:sticky; top:0; z-index:100; height:var(--header-h);
  display:flex; align-items:center; gap:clamp(16px,2.5vw,36px);
  padding-inline:var(--gutter);
  background:rgba(243,238,230,.94);
  -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px);
  border-bottom:1px solid transparent; transition:border-color .25s var(--ease);
}
.hdr.stuck{ border-bottom-color:var(--rule); }

.brand{ display:flex; align-items:center; gap:11px; flex:none; margin-right:auto; }
.brand picture{ display:block; flex:none; }
.brand img{ width:32px; height:34px; object-fit:contain; }
.brand-text{ display:flex; flex-direction:column; line-height:1; gap:4px; }
.brand-name{ font-family:var(--serif); font-size:1.28rem; font-weight:600; color:var(--evergreen); }
.brand-sub{
  font-family:var(--mono); font-size:.545rem; font-weight:500;
  letter-spacing:.16em; text-transform:uppercase; color:var(--bronze-deep);
}

.nav{ display:flex; align-items:center; gap:clamp(14px,2vw,30px); }
.nav a{
  font-family:var(--mono); font-size:.715rem; font-weight:500;
  letter-spacing:.11em; text-transform:uppercase; color:var(--graphite);
  position:relative; padding:13px 0; min-height:44px; display:inline-flex; align-items:center; white-space:nowrap; transition:color .2s var(--ease);
}
.nav a::after{
  content:''; position:absolute; left:0; bottom:2px; width:0; height:1px;
  background:var(--bronze-deep); transition:width .25s var(--ease);
}
.nav a:hover{ color:var(--bronze-deep); }
.nav a:hover::after{ width:100%; }
.nav a[aria-current="page"]{ color:var(--evergreen); }
.nav a[aria-current="page"]::after{ width:100%; background:var(--evergreen); }
.nav a.cta{
  color:var(--sand); background:var(--evergreen); border:1px solid var(--evergreen);
  padding:11px 20px; min-height:44px; display:inline-flex; align-items:center;
  transition:background .2s var(--ease), border-color .2s var(--ease);
}
.nav a.cta::after{ display:none; }
.nav a.cta:hover{ background:var(--bronze-deep); border-color:var(--bronze-deep); color:#fff; }

/* The aperture: the mark as a reading instrument. The eye opens as you read. */
.aperture{ flex:none; color:var(--evergreen); }
.aperture .ap-eye{ transition:ry .12s linear; }

.burger{ display:none; width:44px; height:44px; flex-direction:column; justify-content:center; gap:5px; }
.burger span{ height:1.5px; width:22px; background:var(--evergreen); margin-inline:auto; transition:transform .25s var(--ease), opacity .18s; }
.burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.burger[aria-expanded="true"] span:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }

/* ---------- The sightline ----------
   A hairline with a ring-tick at its origin and the section code sitting on
   the line. The heading hangs beneath; three modes place it differently. */
.sl{
  display:grid; grid-template-columns:repeat(12,minmax(0,1fr)); column-gap:var(--gap);
  row-gap:clamp(18px,2.4vw,30px); margin-bottom:clamp(36px,4.5vw,64px); align-items:end;
}
.sl-rule{
  grid-column:1 / -1; position:relative; height:1px; background:var(--rule-strong); margin-bottom:14px;
}
.sl-rule::before{
  content:''; position:absolute; left:0; top:50%; width:11px; height:11px; transform:translateY(-50%);
  border-radius:50%; border:1.6px solid var(--evergreen); background:var(--sand);
}
.sl-code{
  position:absolute; left:22px; top:50%; transform:translateY(-50%);
  font-family:var(--mono); font-size:var(--fs-label); font-weight:500;
  letter-spacing:.18em; text-transform:uppercase; color:var(--bronze-deep);
  background:var(--sand); padding-inline:10px 12px; white-space:nowrap;
}
.sl h2,.sl h1{ font-size:var(--fs-lg); line-height:1.12; letter-spacing:-.014em; }
.sl .lead{ color:var(--graphite-soft); }
.sl-left h2{ grid-column:1 / 8; }
.sl-left .lead{ grid-column:8 / 13; }
.sl-wide h2{ grid-column:1 / 11; font-size:var(--fs-xl); line-height:1.06; letter-spacing:-.018em; }
.sl-wide .lead{ grid-column:1 / 8; }
.sl-rail h2{ grid-column:5 / 13; }
.sl-rail .lead{ grid-column:1 / 5; grid-row:2; align-self:end; }
.sl-rail h2{ grid-row:2; }

.sec-dark .sl-rule{ background:var(--rule-dark-strong); }
.sec-dark .sl-rule::before{ border-color:var(--sage); background:var(--evergreen); }
.sec-dark .sl-code{ background:var(--evergreen); color:var(--bronze-pale); }
.sec-dark .sl .lead{ color:rgba(243,238,230,.74); }
.sl-rule-dark{ background:var(--rule-dark-strong); }
.sl-rule-dark::before{ border-color:var(--sage); background:var(--evergreen-ink); }
.sl-rule-dark .sl-code{ background:var(--evergreen-ink); color:var(--sage-pale); }

/* ---------- Plates ----------
   A photograph shown whole on a dark ground. Never cropped: several are
   multi-panel composites. Registration marks at two corners. */
.plateband{ background:var(--evergreen-ink); padding-block:clamp(32px,4vw,56px); }
.plateband > .plate{ max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter); }
.sec .plateband{ margin-block:clamp(36px,4.5vw,64px); }
.sec .plateband-tail{ margin-bottom:0; }
.sec .plateband-lead{ margin-top:0; }
.sec-dark .plateband{ background:var(--evergreen-ink); }
.sec .wrap + .plateband + .wrap > .ledger,
.sec .wrap + .plateband + .wrap > .keyed{ margin-top:0; }

.plate{ margin:0; position:relative; }
.plate img{
  display:block; width:100%; height:auto; aspect-ratio:var(--ar, 3 / 2);
  object-fit:contain; background:var(--evergreen-ink);
}
.plate figcaption{
  display:flex; gap:18px; align-items:baseline; margin-top:14px;
  font-family:var(--mono); font-size:.7rem; letter-spacing:.06em; color:rgba(243,238,230,.74);
}
.plate .pn{ color:var(--bronze-pale); letter-spacing:.18em; }
.plate figcaption::before{ content:''; width:11px; height:11px; border-radius:50%; border:1.4px solid var(--sage); align-self:center; flex:none; }
/* a plate on the light ground: caption in the light palette */
.sec:not(.sec-dark) .evidence .plate figcaption{ color:var(--graphite-soft); }
.sec:not(.sec-dark) .evidence .plate .pn{ color:var(--bronze-deep); }
.sec:not(.sec-dark) .evidence .plate figcaption::before{ border-color:var(--evergreen); }
/* registration marks */
.plate img{ outline:1px solid rgba(146,168,160,.16); outline-offset:-1px; }

/* ---------- Ticks: calibrated marks on one rule ---------- */
.ticks{
  display:grid; grid-template-columns:repeat(var(--n,4),minmax(0,1fr)); column-gap:var(--gap);
  border-top:1px solid var(--rule-strong); counter-reset:none;
}
.ticks li{ position:relative; padding:24px 0 8px; }
.ticks li::before{ content:''; position:absolute; left:0; top:-1px; width:1px; height:16px; background:var(--evergreen); }
.ticks .tk{ display:block; margin-bottom:14px; }
.ticks h3{ font-size:var(--fs-sm); line-height:1.3; margin-bottom:8px; }
.ticks p{ font-size:var(--fs-fine); color:var(--graphite-soft); line-height:1.55; max-width:32ch; }
.sec-dark .ticks{ border-color:var(--rule-dark-strong); }
.sec-dark .ticks li::before{ background:var(--sage); }
.sec-dark .ticks p{ color:rgba(243,238,230,.72); }

/* ---------- Ledger: numbered entries with a large numeral ---------- */
.ledger{ border-top:1px solid var(--rule); }
.ledger article{
  display:grid; grid-template-columns:minmax(0,3fr) minmax(0,9fr); column-gap:var(--gap);
  padding-block:clamp(28px,3.6vw,48px); border-bottom:1px solid var(--rule); align-items:start;
}
.ledger .big{ grid-column:1; }
.ledger-in{ grid-column:2; display:grid; grid-template-columns:minmax(0,5fr) minmax(0,7fr); column-gap:var(--gap); align-items:start; }
.ledger h3{ font-size:var(--fs-md); line-height:1.22; }
.ledger .body{ display:flex; flex-direction:column; gap:16px; }
.ledger p{ color:var(--graphite-soft); max-width:var(--measure); }
.tags{ display:flex; flex-wrap:wrap; gap:7px; }
.tag{
  font-family:var(--mono); font-size:.63rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--sage-deep); border:1px solid var(--rule); padding:5px 10px;
}
.sec-dark .ledger,.sec-dark .ledger article{ border-color:var(--rule-dark); }
.sec-dark .ledger p{ color:rgba(243,238,230,.76); }

/* ---------- Statements: three, no boxes ---------- */
.stmt{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:clamp(28px,4vw,64px) var(--gap); }
.stmt > div{ display:flex; flex-direction:column; gap:14px; }
.stmt .big{ margin-bottom:6px; }
.stmt h3{ font-size:var(--fs-md); line-height:1.22; max-width:16ch; }
.stmt p{ color:var(--graphite-soft); }

/* ---------- Cross: four entries on one hairline cross ---------- */
.cross{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); }
.cross > div{ padding:clamp(24px,3vw,40px); display:flex; flex-direction:column; gap:12px; }
.cross > div:nth-child(odd){ border-right:1px solid var(--rule-strong); padding-left:0; }
.cross > div:nth-child(even){ padding-right:0; }
.cross > div:nth-child(-n+2){ border-bottom:1px solid var(--rule-strong); padding-top:0; }
.cross > div:nth-child(n+3){ padding-bottom:0; }
.cross h3{ font-size:var(--fs-md); line-height:1.22; }
.cross p{ color:var(--graphite-soft); max-width:40ch; }
.sec-dark .cross > div{ border-color:var(--rule-dark-strong); }
.sec-dark .cross p{ color:rgba(243,238,230,.76); }

/* ---------- Keyed register ---------- */
.keyed{ display:grid; column-gap:clamp(28px,4vw,56px); row-gap:0; }
.keyed-2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.keyed-3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
.keyed > div{ border-top:1px solid var(--rule); padding:22px 0 26px; display:flex; flex-direction:column; gap:8px; }
.keyed .k{ margin-bottom:6px; }
.keyed h3{ font-size:var(--fs-sm); line-height:1.3; }
.keyed p{ font-size:var(--fs-fine); color:var(--graphite-soft); line-height:1.58; }
.sec-dark .keyed > div{ border-color:var(--rule-dark); }
.sec-dark .keyed p{ color:rgba(243,238,230,.74); }

/* ---------- Split by a vertical rule ---------- */
.splitrule{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); column-gap:0; align-items:start; }
.splitrule > div{ display:flex; flex-direction:column; gap:14px; }
.splitrule > div:first-child{ border-right:1px solid var(--rule-strong); padding-right:clamp(24px,4vw,64px); }
.splitrule > div:last-child{ padding-left:clamp(24px,4vw,64px); }
.splitrule h3{ font-size:var(--fs-md); line-height:1.22; }
.splitrule p{ color:var(--graphite-soft); max-width:var(--measure); }
.splitrule .lead{ color:var(--graphite); }
.sec-dark .splitrule > div:first-child{ border-color:var(--rule-dark-strong); }
.sec-dark .splitrule p{ color:rgba(243,238,230,.76); }
.sec-dark .splitrule .lead{ color:var(--sand); }

/* ---------- Lists ---------- */
.checks{ display:flex; flex-direction:column; gap:11px; }
.checks li{ position:relative; padding-left:26px; font-size:var(--fs-fine); line-height:1.56; }
.checks li::before{
  content:''; position:absolute; left:1px; top:.55em; width:11px; height:6px;
  border-left:1.5px solid var(--bronze-deep); border-bottom:1.5px solid var(--bronze-deep);
  transform:rotate(-45deg);
}
.sec-dark .checks li::before{ border-color:var(--bronze-pale); }
.nots li::before{
  content:'\2014'; border:0; transform:none; top:0; left:0; width:auto; height:auto;
  color:var(--sage-deep); font-family:var(--mono); font-size:.78rem;
}
.sec-dark .nots li::before{ color:var(--sage); }

/* ---------- Evidence: a plate beside an annotated record ---------- */
.evidence{
  display:grid; grid-template-columns:minmax(0,5fr) minmax(0,7fr); column-gap:clamp(28px,4vw,64px);
  align-items:start; margin-bottom:clamp(36px,4.5vw,64px);
}
.evidence-flip{ grid-template-columns:minmax(0,7fr) minmax(0,5fr); margin-top:clamp(36px,4.5vw,64px); margin-bottom:0; }
.evidence-flip .evidence-art{ order:2; }
.evidence-copy{ display:flex; flex-direction:column; gap:18px; }
.evidence-copy h3{ font-size:var(--fs-md); line-height:1.22; }
.evidence-copy p{ max-width:var(--measure); }
.sec-dark .evidence-copy p{ color:rgba(243,238,230,.8); }

.record{ margin-top:10px; border:1px solid var(--rule-dark-strong); font-family:var(--mono); font-size:.76rem; }
.rec-row{ display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.6fr); gap:16px; padding:10px 16px; border-bottom:1px solid var(--rule-dark); }
.rec-row:last-child{ border-bottom:0; }
.rec-k{ color:var(--bronze-pale); }
.rec-v{ color:rgba(243,238,230,.7); }
.rec-ok{ color:var(--sage-pale); }
.rec-hi{ background:rgba(180,135,77,.08); box-shadow:inset 3px 0 0 var(--bronze); }
.rec-hi .rec-v{ color:var(--sand); }

/* ---------- Spec table ---------- */
.spec{ border:1px solid var(--rule-dark-strong); background:var(--evergreen-ink); }
.spec-hd{ display:flex; flex-wrap:wrap; gap:16px; justify-content:space-between; align-items:baseline; padding:clamp(16px,2.2vw,24px) clamp(18px,3vw,32px); border-bottom:1px solid var(--rule-dark-strong); }
.spec-hd h3{ color:var(--sand); font-size:var(--fs-sm); }
.spec-hd .label{ color:var(--bronze-pale); }
.spec-scroll{ overflow-x:auto; }
.spec table{ width:100%; border-collapse:collapse; font-family:var(--mono); font-size:.775rem; min-width:520px; }
.spec th{
  text-align:left; font-weight:500; letter-spacing:.14em; text-transform:uppercase; font-size:.6rem;
  color:var(--sage-pale); padding:13px clamp(18px,3vw,32px); border-bottom:1px solid var(--rule-dark-strong);
}
.spec td{ padding:12px clamp(18px,3vw,32px); border-bottom:1px solid rgba(146,168,160,.12); color:rgba(243,238,230,.84); vertical-align:top; line-height:1.5; }
.spec tr:last-child td{ border-bottom:0; }
.spec td:first-child{ color:var(--bronze-pale); white-space:nowrap; }
.spec td:nth-child(2){ color:var(--sage-pale); white-space:nowrap; font-size:.72rem; }

/* ---------- Etymology specimens ---------- */
.etym{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); column-gap:var(--gap); border-top:1px solid var(--rule-dark-strong); }
.etym > div{ padding-top:26px; display:flex; flex-direction:column; gap:12px; }
.etym h3{ font-family:var(--serif); font-style:italic; font-weight:500; font-size:var(--fs-xl); line-height:1; color:var(--sand); letter-spacing:-.01em; }
.etym p{ font-size:var(--fs-fine); color:rgba(243,238,230,.74); max-width:30ch; }
.etym-sum{ margin-top:clamp(28px,3.5vw,48px); max-width:var(--measure); }

/* ---------- The calibrated sequence (Process) ---------- */
.seq{ position:relative; }
.seq::before{ content:''; position:absolute; left:calc(var(--fs-big) * .62); top:0; bottom:0; width:1px; background:var(--rule-strong); }
.seq-step{
  position:relative; display:grid; grid-template-columns:calc(var(--fs-big) * 1.45) minmax(0,1fr); column-gap:var(--gap);
  padding-block:clamp(30px,4vw,56px); border-top:1px solid var(--rule);
}
.seq-step:first-child{ border-top:0; }
.seq-step::before{
  content:''; position:absolute; left:calc(var(--fs-big) * .62 - 5px); top:calc(clamp(30px,4vw,56px) + .52em);
  width:11px; height:11px; border-radius:50%; background:var(--sand); border:1.6px solid var(--bronze-deep);
  transition:background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
.seq-step .big{ position:relative; background:var(--sand); padding-right:8px; width:max-content; transition:color .3s var(--ease), opacity .3s var(--ease); }
.seq-step.is-active .big{ color:var(--evergreen); opacity:1; }
.seq-step.is-active::before{ background:var(--evergreen); border-color:var(--evergreen); transform:scale(1.25); }
.seq-in{ display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); column-gap:var(--gap); row-gap:18px; align-items:start; }
.seq-in h3{ grid-column:1 / -1; font-size:var(--fs-md); line-height:1.22; }
.seq-in p{ color:var(--graphite-soft); }

/* ---------- Services: index + entries ---------- */
.svc-layout{ display:grid; grid-template-columns:minmax(0,3fr) minmax(0,9fr); column-gap:clamp(28px,4vw,64px); align-items:start; }
.svc-index{ position:sticky; top:calc(var(--header-h) + 24px); }
.svc-index .k{ margin-bottom:8px; }
.svc-index > ol > li{ padding-bottom:22px; }
.svc-index > ol > li > a{ font-family:var(--serif); font-size:var(--fs-sm); color:var(--evergreen); display:block; margin-bottom:8px; }
.svc-index ol ol li a{
  display:flex; gap:10px; align-items:baseline; padding:5px 0; font-size:.86rem; color:var(--graphite-soft);
  border-left:1px solid transparent; margin-left:-1px; padding-left:0; transition:color .15s var(--ease);
}
.svc-index ol ol{ border-left:1px solid var(--rule); padding-left:14px; }
.svc-index ol ol li a .tk{ color:var(--sage-deep); letter-spacing:.1em; }
.svc-index ol ol li a:hover,.svc-index ol ol li a:focus-visible{ color:var(--evergreen); }
.svc-index ol ol li a.is-current{ color:var(--evergreen); }
.svc-index ol ol li a.is-current .tk{ color:var(--bronze-deep); }
.svc-index ol ol li a.is-current::before{ content:''; position:absolute; }
.svc-group + .svc-group{ margin-top:clamp(48px,6vw,88px); }
.svc-gh{ display:flex; flex-direction:column; gap:10px; margin-bottom:clamp(20px,2.5vw,32px); }
.svc-gh h2{ font-size:var(--fs-lg); line-height:1.12; letter-spacing:-.014em; }
.svc{
  display:grid; grid-template-columns:minmax(0,2fr) minmax(0,10fr); column-gap:var(--gap);
  padding-block:clamp(26px,3.2vw,44px); border-top:1px solid var(--rule); align-items:start;
}
.svc:last-child{ border-bottom:1px solid var(--rule); }
.svc-in{ display:flex; flex-direction:column; gap:18px; }
.svc-in h3{ font-size:var(--fs-md); line-height:1.22; }
.svc-in > p{ color:var(--graphite-soft); max-width:var(--measure); }
.svc-cols{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); column-gap:var(--gap); row-gap:16px; }
.svc-cols h4{ font-family:var(--mono); font-size:var(--fs-label); font-weight:500; letter-spacing:.16em; text-transform:uppercase; color:var(--bronze-deep); margin-bottom:10px; }
.svc-stop{ font-size:var(--fs-fine); color:var(--graphite-soft); display:grid; grid-template-columns:auto minmax(0,1fr); gap:14px; align-items:baseline; }
.svc-stop .k{ margin:0; color:var(--sage-deep); flex:none; }

/* ---------- Questions (Resources) ---------- */
.questions{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); column-gap:clamp(28px,4vw,64px); row-gap:0; }
.questions li{ display:grid; grid-template-columns:auto minmax(0,1fr); column-gap:18px; padding:26px 0; border-top:1px solid var(--rule); align-items:start; }
.questions .big{ font-size:clamp(2rem,1.4rem + 2vw,3.2rem); }
.questions h3{ font-size:var(--fs-sm); line-height:1.3; margin-bottom:8px; }
.questions p{ font-size:var(--fs-fine); color:var(--graphite-soft); line-height:1.58; }

/* ---------- Dictionary (glossary) ---------- */
.dict{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); column-gap:clamp(28px,4vw,64px); margin:0; }
.dict > div{ border-top:1px solid var(--rule-dark); padding:18px 0 22px; display:grid; grid-template-columns:minmax(0,2fr) minmax(0,3fr); column-gap:18px; }
.dict dt{ font-family:var(--serif); font-size:var(--fs-sm); color:var(--sand); line-height:1.3; }
.dict dd{ margin:0; font-size:var(--fs-fine); color:rgba(243,238,230,.74); line-height:1.56; }

/* ---------- Q&A (FAQ) ---------- */
.qa{ border-top:1px solid var(--rule); max-width:68rem; }
.qa details{ border-bottom:1px solid var(--rule); }
.qa summary{
  list-style:none; cursor:pointer; position:relative; min-height:44px;
  padding:clamp(16px,2vw,22px) 46px clamp(16px,2vw,22px) 0;
  font-family:var(--serif); font-size:var(--fs-sm); color:var(--evergreen); line-height:1.34; transition:color .18s;
}
.qa summary::-webkit-details-marker{ display:none; }
.qa summary::after,.qa summary::before{ content:''; position:absolute; right:10px; top:50%; background:var(--bronze-deep); transition:transform .25s var(--ease), opacity .25s var(--ease); }
.qa summary::after{ width:14px; height:1.5px; margin-top:-.75px; }
.qa summary::before{ width:1.5px; height:14px; right:16.25px; margin-top:-7px; }
.qa details[open] summary::before{ transform:rotate(90deg); opacity:0; }
.qa summary:hover{ color:var(--bronze-deep); }
.qa-body{ padding:0 clamp(20px,5vw,72px) clamp(18px,2.2vw,26px) 0; }
.qa-body p{ color:var(--graphite-soft); max-width:var(--measure); }

/* ---------- Contact ---------- */
.contact-grid{ display:grid; grid-template-columns:minmax(0,7fr) minmax(0,5fr); column-gap:clamp(28px,4vw,72px); align-items:start; }
.contact-card{ display:flex; flex-direction:column; gap:clamp(24px,3vw,40px); padding-top:6px; }
.contact-line{ display:flex; flex-direction:column; gap:10px; }
.contact-line .label{ color:var(--sage-deep); }
.contact-line a{
  font-family:var(--serif); font-size:clamp(1.5rem,1.1rem + 1.8vw,2.6rem); line-height:1.15; color:var(--evergreen);
  text-decoration:underline; text-decoration-thickness:1px; text-underline-offset:8px;
  text-decoration-color:rgba(180,135,77,.55); word-break:break-word; letter-spacing:-.01em;
}
.contact-line a:hover{ color:var(--bronze-deep); text-decoration-color:currentColor; }
.contact-help{ border-left:1px solid var(--rule-strong); padding-left:clamp(24px,3vw,44px); display:flex; flex-direction:column; gap:14px; }
.contact-help h2{ font-size:var(--fs-md); line-height:1.24; }
.contact-help .checks{ margin-top:6px; }

/* ---------- Hero ---------- */
.hero{ background:var(--evergreen-ink); color:rgba(243,238,230,.82); position:relative; overflow:hidden; }
.hero::before{
  content:''; position:absolute; inset:0; pointer-events:none;
  background-image:linear-gradient(rgba(146,168,160,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(146,168,160,.045) 1px,transparent 1px);
  background-size:84px 84px;
  -webkit-mask-image:radial-gradient(110% 80% at 80% 20%,#000 0%,transparent 70%);
  mask-image:radial-gradient(110% 80% at 80% 20%,#000 0%,transparent 70%);
}
.hero-in{ position:relative; z-index:1; padding-block:clamp(48px,6vw,80px) clamp(40px,5vw,72px); }
.hero-grid{ display:grid; grid-template-columns:minmax(0,7fr) minmax(0,5fr); column-gap:clamp(28px,4vw,72px); align-items:start; }
.hero-copy{ padding-top:clamp(4px,1.5vw,20px); }
.hero .label{ color:var(--bronze-pale); }
.hero h1{ color:var(--sand); font-size:var(--fs-display); line-height:1.02; letter-spacing:-.024em; max-width:19ch; margin-top:22px; }
.hero h1 em{ color:var(--bronze-pale); }
.hero-sub{ color:rgba(243,238,230,.78); font-size:var(--fs-lead); line-height:1.56; max-width:44ch; margin-top:26px; }
.hero .btn-row{ margin-top:clamp(28px,4vw,48px); }
.hero-art{ margin-top:clamp(24px,7vw,110px); }
.hero-art .plate figcaption{ justify-content:flex-end; }

/* ---------- Page header ---------- */
.phead{ background:var(--evergreen); color:var(--sand); padding-block:clamp(44px,6vw,84px) clamp(44px,6vw,80px); position:relative; overflow:hidden; }
.phead::after{
  content:''; position:absolute; right:-8%; top:-52%; width:min(560px,60vw); aspect-ratio:1;
  border-radius:50%; border:1px solid rgba(146,168,160,.2); pointer-events:none;
}
.phead .wrap{ position:relative; z-index:1; }
.phead-grid{ display:grid; grid-template-columns:minmax(0,7fr) minmax(0,5fr); column-gap:clamp(28px,4vw,72px); align-items:end; margin-top:clamp(28px,4vw,52px); }
.phead h1{ color:var(--sand); font-size:var(--fs-xl); line-height:1.04; letter-spacing:-.02em; max-width:18ch; }
.phead .lead{ color:rgba(243,238,230,.78); max-width:44ch; }
.crumbs{ font-family:var(--mono); font-size:.66rem; letter-spacing:.1em; text-transform:uppercase; color:rgba(243,238,230,.76); }
.crumbs ol{ display:flex; flex-wrap:wrap; gap:8px; align-items:center; }
.crumbs a{ color:rgba(243,238,230,.72); }
.crumbs a:hover{ color:var(--bronze-pale); text-decoration:underline; text-underline-offset:3px; }
.crumbs li+li::before{ content:'/'; margin-right:8px; opacity:.5; }

/* ---------- Standards strip (home) ---------- */
.sec-std{ padding-block:clamp(40px,5vw,72px) 0; }
.sec-std + .sec{ padding-top:var(--sec); }

/* ---------- CTA ---------- */
.cta{ background:var(--evergreen-ink); color:rgba(243,238,230,.8); position:relative; overflow:hidden; padding-block:clamp(56px,7vw,104px); }
.cta::after{
  content:''; position:absolute; right:-6%; bottom:-40%; width:min(420px,50vw); aspect-ratio:1;
  border-radius:50%; border:1px solid rgba(146,168,160,.16); pointer-events:none;
}
.cta-in{ position:relative; z-index:1; display:grid; grid-template-columns:minmax(0,7fr) minmax(0,5fr); column-gap:clamp(28px,4vw,72px); align-items:end; }
.cta .label{ grid-column:1 / -1; color:var(--bronze-pale); margin-bottom:6px; }
.cta h2{ color:var(--sand); font-size:var(--fs-lg); line-height:1.1; letter-spacing:-.014em; max-width:20ch; }
.cta p{ max-width:40ch; }
.cta .btn{ margin-top:22px; }

/* ---------- Prose (legal pages) + 404 ---------- */
.prose{ max-width:74ch; }
.prose h2{ font-size:var(--fs-md); margin-top:48px; padding-bottom:12px; border-bottom:1px solid var(--rule); }
.prose h2:first-child{ margin-top:0; }
.prose h3{ font-size:var(--fs-sm); margin-top:32px; }
.prose p{ margin-top:16px; color:var(--graphite-soft); }
.prose ul{ margin-top:16px; display:flex; flex-direction:column; gap:9px; }
.prose ul li{ position:relative; padding-left:22px; color:var(--graphite-soft); font-size:var(--fs-fine); line-height:1.6; }
.prose ul li::before{ content:''; position:absolute; left:2px; top:.62em; width:6px; height:6px; border:1px solid var(--bronze-deep); }
.prose .updated{ font-family:var(--mono); font-size:.7rem; letter-spacing:.1em; text-transform:uppercase; color:var(--sage-deep); }
.split{ display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.2fr); gap:clamp(24px,5vw,72px); align-items:start; }

/* ---------- Footer ---------- */
.ftr{ background:var(--evergreen-ink); color:rgba(243,238,230,.68); padding-block:clamp(40px,5vw,72px) 32px; }
.ftr .sl-rule{ margin-bottom:clamp(36px,4vw,56px); }
.ftr-top{ display:grid; grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,1fr)); gap:clamp(28px,4vw,64px); padding-bottom:48px; border-bottom:1px solid rgba(146,168,160,.18); }
.ftr .brand-name{ color:var(--sand); }
.ftr-brand p{ font-size:var(--fs-fine); color:rgba(243,238,230,.62); max-width:40ch; line-height:1.6; margin-top:16px; }
.ftr h2{ font-family:var(--mono); font-size:var(--fs-label); font-weight:500; letter-spacing:.16em; text-transform:uppercase; color:var(--sage-pale); margin-bottom:16px; }
.ftr-col a{ display:block; padding:6px 0; font-size:var(--fs-fine); color:rgba(243,238,230,.74); }
.ftr-col a:hover{ color:var(--bronze-pale); text-decoration:underline; text-underline-offset:3px; }
.ftr-bot{ padding-top:24px; display:flex; flex-wrap:wrap; gap:16px 32px; justify-content:space-between; align-items:center; font-size:.78rem; color:rgba(243,238,230,.5); }
.ftr-legal{ display:flex; flex-wrap:wrap; gap:24px; }
.ftr-legal a:hover{ color:var(--bronze-pale); text-decoration:underline; text-underline-offset:3px; }

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .svc-layout{ grid-template-columns:minmax(0,4fr) minmax(0,8fr); }
  .ledger-in{ grid-template-columns:1fr; row-gap:12px; }
}
@media (max-width:1024px){
  .sl-left h2,.sl-wide h2,.sl-rail h2{ grid-column:1 / -1; grid-row:auto; }
  .sl-left .lead,.sl-wide .lead,.sl-rail .lead{ grid-column:1 / -1; grid-row:auto; }
  .sl{ align-items:start; }
  .ticks{ grid-template-columns:repeat(2,minmax(0,1fr)); row-gap:8px; }
  .ticks li{ padding-bottom:20px; }
  .stmt{ grid-template-columns:1fr; gap:36px; }
  .keyed-3{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .evidence,.evidence-flip{ grid-template-columns:1fr; row-gap:28px; }
  .evidence-flip .evidence-art{ order:0; }
  .svc-layout{ grid-template-columns:1fr; }
  .svc-index{ position:static; margin-bottom:clamp(32px,4vw,52px); }
  .svc-index > ol{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); column-gap:var(--gap); }
  .contact-grid{ grid-template-columns:1fr; row-gap:36px; }
  .contact-help{ border-left:0; padding-left:0; border-top:1px solid var(--rule-strong); padding-top:28px; }
  .cta-in{ grid-template-columns:1fr; row-gap:22px; }
  .phead-grid{ grid-template-columns:1fr; row-gap:22px; }
}
@media (max-width:900px){
  .burger{ display:flex; }
  .aperture{ margin-right:2px; }
  .nav{
    position:absolute; top:var(--header-h); left:0; right:0;
    flex-direction:column; align-items:stretch; gap:0;
    background:var(--sand); border-bottom:1px solid var(--rule);
    padding:0 var(--gutter); max-height:0; overflow:hidden;
    transition:max-height .3s var(--ease), padding .3s var(--ease);
  }
  .nav.open{ max-height:min(78vh,520px); overflow-y:auto; padding-block:8px 24px; }
  .nav a{ font-size:.82rem; padding:15px 0; border-bottom:1px solid var(--rule); }
  .nav a::after{ display:none; }
  .nav a[aria-current="page"]{ color:var(--bronze-deep); }
  .nav a.cta{ margin-top:16px; justify-content:center; border-bottom:1px solid var(--evergreen); }
  .hero-grid{ grid-template-columns:1fr; row-gap:36px; }
  .hero-art{ margin-top:0; order:-1; }
  .hero-art .plate figcaption{ justify-content:flex-start; }
  .hero h1{ max-width:none; }
  .ledger article{ grid-template-columns:1fr; row-gap:14px; }
  .ledger .big{ font-size:clamp(2.2rem,1.6rem + 2vw,3rem); }
  .cross{ grid-template-columns:1fr; }
  .cross > div{ padding:24px 0 !important; border-right:0 !important; border-bottom:1px solid var(--rule-strong) !important; }
  .cross > div:last-child{ border-bottom:0 !important; }
  .sec-dark .cross > div{ border-color:var(--rule-dark-strong) !important; }
  .keyed-2,.keyed-3{ grid-template-columns:1fr; }
  .splitrule{ grid-template-columns:1fr; row-gap:24px; }
  .splitrule > div:first-child{ border-right:0; padding-right:0; border-bottom:1px solid var(--rule-strong); padding-bottom:24px; }
  .splitrule > div:last-child{ padding-left:0; }
  .sec-dark .splitrule > div:first-child{ border-color:var(--rule-dark-strong); }
  .etym{ grid-template-columns:1fr; }
  .etym > div{ padding:22px 0; border-bottom:1px solid var(--rule-dark); }
  .etym > div:last-child{ border-bottom:0; }
  .seq::before{ display:none; }
  .seq-step{ grid-template-columns:1fr; row-gap:10px; }
  .seq-step::before{ display:none; }
  .seq-step .big{ font-size:clamp(2.2rem,1.6rem + 2vw,3rem); background:none; }
  .seq-in{ grid-template-columns:1fr; }
  .svc{ grid-template-columns:1fr; row-gap:12px; }
  .svc .big{ font-size:clamp(2.2rem,1.6rem + 2vw,3rem); }
  .questions{ grid-template-columns:1fr; }
  .dict{ grid-template-columns:1fr; }
  .split{ grid-template-columns:1fr; }
  .ftr-top{ grid-template-columns:1fr 1fr; }
  .ftr-brand{ grid-column:1 / -1; }
}
@media (max-width:640px){
  :root{ --header-h:64px; }
  .brand-sub{ display:none; }
  .ticks{ grid-template-columns:1fr; }
  .ticks li{ border-bottom:1px solid var(--rule); padding-bottom:18px; }
  .ticks li::before{ display:none; }
  .ticks li:last-child{ border-bottom:0; }
  .sec-dark .ticks li{ border-color:var(--rule-dark); }
  .svc-index > ol{ grid-template-columns:1fr; }
  .svc-cols{ grid-template-columns:1fr; }
  .svc-stop{ grid-template-columns:1fr; gap:6px; }
  .dict > div{ grid-template-columns:1fr; row-gap:6px; }
  .sl-code{ left:20px; letter-spacing:.12em; }
  .plate figcaption{ flex-wrap:wrap; gap:10px 16px; }
  .ftr-top{ grid-template-columns:1fr; }
  .ftr-bot{ flex-direction:column; align-items:flex-start; }
  .rec-row{ grid-template-columns:1fr; gap:4px; }
}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
}
@media (hover:none){
  .nav a::after{ display:none; }
}

/* ---------- Print ---------- */
@media print{
  .hdr,.ftr,.cta,.skip,.aperture{ display:none !important; }
  body{ background:#fff; color:#000; }
  .sec-dark,.plateband,.hero{ background:#fff !important; color:#000 !important; }
  a[href^="http"]::after{ content:" (" attr(href) ")"; font-size:.8em; }
}