/* russellwhite.me stylesheet. Tokens first, then components in page order,
   then responsive, motion and print. */

@font-face{font-family:"Archivo";src:url(/fonts/archivo.woff2) format("woff2-variations");font-weight:400 700;font-stretch:75% 100%;font-style:normal;font-display:swap}
@font-face{font-family:"osifont";src:url(/fonts/osifont.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap;size-adjust:112%}

:root{
  --film:#eef1f3;
  --film-2:#e3e8eb;
  --ink:#121417;
  --ink-2:#394048;
  --ink-3:#586069;
  --line:#121417;
  --line-2:#9aa3ab;
  --field:#646d76;
  --dim:#b92e1b;
  --dim-wash:rgba(200,50,31,.09);
  --on-dim:#fff7f5;
  --danger:#a3210f;
  --lw-1:1px;
  --lw-2:2px;
  --lw-3:3px;
  --text:"Archivo",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --letter:"osifont","Archivo",ui-sans-serif,system-ui,sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
  --strip:3rem;
  color-scheme:light;
}

@media (prefers-color-scheme:dark){
  :root{
    --film:#0d1014;
    --film-2:#151a20;
    --ink:#dfe5ea;
    --ink-2:#b3bcc4;
    --ink-3:#8f99a2;
    --line:#c3ccd4;
    --line-2:#3b454f;
    --field:#707b86;
    --dim:#6fc3d6;
    --dim-wash:rgba(111,195,214,.12);
    --on-dim:#0d1014;
    --danger:#ff8f7e;
    color-scheme:dark;
  }
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scrollbar-color:var(--line-2) var(--film);
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--strip) + 1rem);
}

body{
  margin:0;
  background:var(--film);
  color:var(--ink);
  font-family:var(--text);
  font-size:clamp(1rem,.96rem + .2vw,1.125rem);
  line-height:1.6;
  font-synthesis:none;
  -webkit-font-smoothing:antialiased;
  caret-color:var(--dim);
}

::selection{background:var(--dim-wash);color:var(--ink)}

:focus-visible{outline:2px solid var(--dim);outline-offset:3px}

a{color:inherit;text-decoration-color:var(--line-2);text-decoration-thickness:1px;text-underline-offset:.2em}
a:hover{text-decoration-color:var(--dim)}

h1,h2,h3{margin:0;text-wrap:balance}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

.shell{--pad:clamp(1rem,3.5vw,3rem);max-width:84rem;margin-inline:auto;padding-inline:var(--pad)}

.skip{position:absolute;left:1rem;top:-4rem;z-index:20;background:var(--ink);color:var(--film);padding:.75rem 1rem;text-decoration:none}
.skip:focus{top:.5rem}

.vh{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ------------------------------------------------------------------ strip */

.strip{
  position:sticky;top:0;z-index:10;
  background:var(--film);
  border-bottom:var(--lw-1) solid var(--line);
}
.strip__in{display:flex;align-items:center;gap:1.5rem;min-height:var(--strip)}
.strip__name{
  font-weight:650;font-stretch:85%;letter-spacing:-.01em;text-decoration:none;
  min-height:44px;display:inline-flex;align-items:center;
}
.strip__nav{margin-left:auto}
.strip__nav ul{display:flex;gap:.25rem}
.strip__nav a{
  display:inline-flex;align-items:center;min-height:44px;padding-inline:.625rem;
  font-family:var(--letter);font-size:.9375rem;text-decoration:none;color:var(--ink-2);
}
.strip__nav a:hover{color:var(--ink);text-decoration:underline;text-decoration-color:var(--dim)}
.strip__cta{
  display:inline-flex;align-items:center;min-height:44px;padding-inline:1rem;
  background:var(--ink);color:var(--film);text-decoration:none;font-weight:600;font-size:.9375rem;
}
.strip__cta:hover{background:var(--dim);color:var(--on-dim)}

@media (max-width:52rem){
  .strip__nav{display:none}
  /* one filled "Get in touch" per screen: on narrow screens the strip's is a plain link,
     the title block's Approval button stays the primary action */
  .strip__cta{
    margin-left:auto;padding-inline:.5rem;background:none;color:var(--ink);
    text-decoration:underline;text-decoration-color:var(--line-2);text-underline-offset:.25em;
  }
  .strip__cta:hover{background:none;color:var(--ink);text-decoration-color:var(--dim)}
}

/* ---------------------------------------------------------------- buttons */

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:44px;padding:.625rem 1.25rem;
  font:inherit;font-weight:600;line-height:1.2;text-decoration:none;
  border:var(--lw-2) solid var(--ink);background:transparent;color:var(--ink);
  cursor:pointer;
  transition:background-color .12s var(--ease),color .12s var(--ease),border-color .12s var(--ease);
}
.btn--primary{background:var(--ink);color:var(--film)}
.btn--primary:hover{background:var(--dim);border-color:var(--dim);color:var(--on-dim)}
.btn:active{translate:0 1px}
.btn:disabled{cursor:progress;opacity:.6}

/* ------------------------------------------------------------ title block */

.sheet{padding-block:clamp(1.25rem,3vw,2.5rem) clamp(2rem,4vw,3.5rem)}

.tb{
  display:grid;
  grid-template-columns:minmax(11rem,15rem) minmax(0,1fr) minmax(19rem,25rem);
  grid-template-areas:
    "p id revs"
    "p id ok";
  border:var(--lw-3) solid var(--line);
}
.tb > *{min-width:0}
.tb__portrait{grid-area:p;margin:0;padding:1rem;border-right:var(--lw-1) solid var(--line);display:flex}
.tb__portrait .portrait{flex:1}
@media screen and (min-width:40.01rem){.portrait{display:flex;flex-direction:column}.portrait img{flex:1;height:0;aspect-ratio:auto;min-height:14rem}}
.tb__id{grid-area:id;padding:clamp(1rem,2.5vw,2rem);display:flex;flex-direction:column;gap:1.25rem}
.tb__revs{grid-area:revs;border-left:var(--lw-1) solid var(--line);padding:.75rem 1rem .5rem}
.tb__approve{
  grid-area:ok;border-left:var(--lw-1) solid var(--line);border-top:var(--lw-1) solid var(--line);
  padding:.75rem 1rem 1rem;display:flex;flex-wrap:wrap;align-items:center;gap:.25rem 1rem;
}
.tb__approve .tb__label{flex-basis:100%}

.tb__label,.tb__range dt{
  font-family:var(--letter);font-size:.8125rem;line-height:1.3;color:var(--ink-3);
  text-transform:uppercase;letter-spacing:.04em;
}

h1{
  font-size:clamp(2.5rem,1.6rem + 4vw,5.25rem);
  font-weight:650;font-stretch:78%;
  line-height:.95;letter-spacing:-.025em;
}
.tb__scope{font-size:clamp(1.125rem,1rem + .55vw,1.4375rem);line-height:1.4;max-width:34ch;color:var(--ink)}
.tb__range{margin:auto 0 0;padding-top:.875rem;border-top:var(--lw-1) solid var(--line-2)}
.tb__range dd{margin:.125rem 0 0;color:var(--ink-2);max-width:48ch}

.tb__mail{display:inline-flex;align-items:center;min-height:44px;font-size:.9375rem;color:var(--ink-2)}

/* portrait with its own dimensions */
.portrait{position:relative;padding:1.625rem 1.875rem 0 0}
.portrait img{display:block;width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;object-position:45% 18%;filter:grayscale(.15) contrast(1.03)}
.pdim{position:absolute;color:var(--dim);font-family:var(--letter);font-size:.875rem;line-height:1}
.pdim--x{top:0;left:0;right:1.875rem;height:1.625rem}
.pdim--x::before{
  content:"";position:absolute;left:0;right:0;bottom:.4375rem;height:9px;
  border-inline:var(--lw-1) solid currentColor;
  background:linear-gradient(currentColor,currentColor) center/100% 1px no-repeat;
}
.pdim--y{top:1.625rem;right:0;bottom:0;width:1.875rem}
.pdim--y::before{
  content:"";position:absolute;top:0;bottom:0;left:.4375rem;width:9px;
  border-block:var(--lw-1) solid currentColor;
  background:linear-gradient(currentColor,currentColor) center/1px 100% no-repeat;
}
.pdim__t{position:absolute;background:var(--film);padding:0 .3125rem;white-space:nowrap}
.pdim--x .pdim__t{left:50%;bottom:.3125rem;translate:-50% 0}
.pdim--y .pdim__t{top:50%;left:.25rem;writing-mode:vertical-rl;rotate:180deg;translate:0 -50%;padding:.3125rem 0}

/* compact revision table */
.tb__revs .tb__label{margin-bottom:.25rem}
.rt li + li{border-top:var(--lw-1) solid var(--line-2)}
.rt a{
  display:grid;grid-template-columns:1.75rem 5.25rem minmax(0,1fr);align-items:center;gap:.5rem;
  min-height:44px;padding:.25rem .375rem;text-decoration:none;
}
.rt a:hover .rt__what{text-decoration:underline;text-decoration-color:var(--ink-3);text-underline-offset:.2em}
.rt__rev,.rt__when{font-family:var(--letter)}
.rt__when{font-size:.875rem;color:var(--ink-3);font-variant-numeric:tabular-nums}
.rt__what{font-size:.9375rem;line-height:1.3}

/* revision delta: the triangle that marks a revision letter */
.rt__rev,.rev__letter{
  position:relative;display:inline-grid;place-items:center;
  width:1.625rem;height:1.5rem;padding-top:.3125rem;font-size:.9375rem;line-height:1;isolation:isolate;
}
.rt__rev::before,.rev__letter::before,.rev__letter::after{
  content:"";position:absolute;inset:0;z-index:-1;
  clip-path:polygon(50% 0,100% 100%,0 100%);
}
.rev__letter::before{background:var(--ink)}
.rev__letter::after{inset:var(--lw-2) calc(var(--lw-2) * 1.9) calc(var(--lw-1) * 1.5);background:var(--film);clip-path:polygon(50% 0,100% 100%,0 100%)}
.rt__rev::before{background:transparent}

/* ------------------------------------------------------------- dimensions */

.dim{
  --w:1px;
  display:grid;grid-template-rows:auto 11px auto;row-gap:.3125rem;
  color:var(--dim);text-decoration:none;
}
.dim__fig{
  font-family:var(--letter);line-height:1;justify-self:center;white-space:nowrap;
  padding-inline:.375rem;font-variant-numeric:tabular-nums lining-nums;
}
.dim__line{
  position:relative;
  border-inline:var(--lw-1) solid currentColor;
  background:linear-gradient(currentColor,currentColor) center/100% 1px no-repeat;
}
.dim__line::before,.dim__line::after{
  content:"";position:absolute;top:50%;width:10px;height:6px;margin-top:-3px;background:currentColor;
}
.dim__line::before{left:1px;clip-path:polygon(0 50%,100% 0,100% 100%)}
.dim__line::after{right:1px;clip-path:polygon(100% 50%,0 0,0 100%)}
.dim__cap{font-size:.875rem;line-height:1.4;color:var(--ink-2);text-wrap:pretty}
.dim__rev{font-family:var(--letter);color:var(--ink-3);white-space:nowrap;margin-left:.25rem}

/* figures inside the sheet are quiet ink on a plain rule: the dimension
   colour belongs to the lead figures and the portrait only */
.rail--side .dim,.rail--rev .dim{color:var(--ink)}
.rail--side .dim__line,.rail--rev .dim__line{border:0;background-image:linear-gradient(var(--line-2),var(--line-2))}
.rail--side .dim__line::before,.rail--side .dim__line::after,
.rail--rev .dim__line::before,.rail--rev .dim__line::after{display:none}

/* lit: a lead figure's line steps up one weight, instantly */
a.dim:is(:hover,:focus-visible) .dim__line{background-size:100% 2px}
a.dim:is(:hover,:focus-visible) .dim__cap{color:var(--ink)}

/* lead figures: the magnitude ramp's top step */
.rail--lead{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(1.25rem,3vw,3rem);
  margin-top:clamp(1.5rem,3vw,2.5rem);
}
.rail--lead .dim__fig{font-size:clamp(1.875rem,1.25rem + 2.1vw,3rem)}
.rail--lead .dim__cap{font-size:.9375rem;max-width:34ch}
.rail--lead a.dim{padding-bottom:.25rem}

/* ------------------------------------------------------- revision lighting */
/* The one signature moment: a lead figure underlines the revision it belongs
   to (compact row and full revision). A revision reached by anchor keeps the
   same underline so the jump lands somewhere marked. No wash, no motion. */
body:has(.rail--lead [data-rev="d"]:is(:hover,:focus-visible)) :is(.rt [data-rev="d"] .rt__what,#rev-d h3),
body:has(.rail--lead [data-rev="c"]:is(:hover,:focus-visible)) :is(.rt [data-rev="c"] .rt__what,#rev-c h3),
.rev:target h3{text-decoration:underline;text-decoration-color:var(--dim);text-decoration-thickness:2px;text-underline-offset:.2em}

/* ---------------------------------------------------------------- bands */

.band{
  display:grid;grid-template-columns:minmax(10rem,15rem) minmax(0,1fr);column-gap:clamp(1.5rem,4vw,4rem);
  padding-block:clamp(2.5rem,5vw,4.5rem);
}
.band > h2{grid-column:1}
.band > :not(h2){grid-column:2}
/* section rule: drawn across the content width, not the gutters */
.sheet + .band,.band + .band{
  background:linear-gradient(var(--line),var(--line)) top center/calc(100% - 2 * var(--pad)) var(--lw-2) no-repeat;
}

h2{
  font-size:clamp(1.5rem,1.2rem + 1.1vw,2.125rem);
  font-weight:650;font-stretch:82%;line-height:1.05;letter-spacing:-.015em;
  align-self:start;
}
h3{font-size:1.1875rem;font-weight:600;line-height:1.3;letter-spacing:-.005em}

.prose{max-width:66ch}
.prose p + p{margin-top:1em}
.prose p{color:var(--ink-2)}
.prose p:first-child{color:var(--ink)}

.note{font-size:.9375rem;color:var(--ink-3);max-width:62ch;margin-bottom:1.5rem}

/* AI practice: prose with its own figures beside it */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(13rem,17rem);gap:clamp(1.5rem,4vw,4rem);align-items:start}
.rail--side{display:grid;gap:1.75rem}
.rail--side .dim__fig,.rail--rev .dim__fig{font-size:clamp(1.5rem,1.25rem + .8vw,2rem)}

/* current hands-on practice: a bill of materials, like the parts list below */
.bom{margin:1.75rem 0 0;max-width:36rem}
.bom figcaption{padding-bottom:.375rem;border-bottom:var(--lw-2) solid var(--line)}
.bom ol{counter-reset:bom}
.bom li{
  counter-increment:bom;display:grid;grid-template-columns:3.5rem minmax(0,1fr);
  padding:.5rem 0;border-bottom:var(--lw-1) solid var(--line-2);font-weight:600;color:var(--ink);
}
.bom li::before{content:counter(bom);font-family:var(--letter);font-weight:400;color:var(--ink-3)}

/* revisions */
.rev{
  display:grid;grid-template-columns:10rem minmax(0,1fr) minmax(16rem,22rem);column-gap:clamp(1rem,2.5vw,2.5rem);
  padding:1.5rem .75rem;border-top:var(--lw-1) solid var(--line);
}
.rev:last-child{border-bottom:var(--lw-1) solid var(--line)}
.rev__mark{display:flex;flex-direction:column;align-items:flex-start;gap:.5rem}
.rev__when{white-space:nowrap;font-family:var(--letter);font-size:.875rem;color:var(--ink-3);font-variant-numeric:tabular-nums}
.rev__org{color:var(--ink-3);font-size:.9375rem;margin-top:.125rem}
.rev__scope{margin-top:.75rem;max-width:62ch;color:var(--ink-2)}
.rail--rev{display:grid;grid-template-columns:repeat(auto-fill,minmax(8.5rem,1fr));gap:1.25rem 1.5rem;align-content:start}
.rev--short{padding-block:1.125rem}
.rail--rev .dim--wide{grid-column:1 / -1}

/* detail callout: a closed summary that opens into its detail */
.detail{margin-top:1.25rem;border-top:var(--lw-1) solid var(--line-2)}
.detail summary{
  display:flex;align-items:center;gap:.75rem;min-height:44px;padding-block:.5rem;
  cursor:pointer;list-style:none;font-weight:600;
}
.detail summary::-webkit-details-marker{display:none}
.detail summary::after{
  content:"";flex:none;width:.625rem;height:.625rem;margin-left:auto;
  border-right:var(--lw-2) solid var(--ink);border-bottom:var(--lw-2) solid var(--ink);
  rotate:45deg;translate:0 -.125rem;
}
.detail[open] summary::after{rotate:225deg;translate:0 .125rem}
.detail__tag{
  flex:none;font-family:var(--letter);font-weight:400;font-size:.875rem;color:var(--ink-2);
  border-bottom:var(--lw-1) solid currentColor;
}
.detail__body{padding:.5rem 0 .5rem}

/* general notes */
.notes{counter-reset:note;display:grid;gap:1.75rem;max-width:66ch}
.notes li{counter-increment:note;display:grid;grid-template-columns:2.25rem minmax(0,1fr);column-gap:.75rem}
.notes li::before{content:counter(note) ".";font-family:var(--letter);font-size:1.125rem;line-height:1.5;color:var(--ink-3);grid-row:1 / span 2}
.notes h3{font-size:1.1875rem}
.notes p{color:var(--ink-2);margin-top:.25rem}

/* education: a parts list */
.parts{border-collapse:collapse;width:100%;max-width:52rem;font-variant-numeric:tabular-nums}
.parts th,.parts td{text-align:left;vertical-align:top;padding:.75rem 1rem .75rem 0;border-bottom:var(--lw-1) solid var(--line-2)}
.parts thead th{
  font-family:var(--letter);font-weight:400;font-size:.8125rem;color:var(--ink-3);text-transform:uppercase;letter-spacing:.04em;
  border-bottom:var(--lw-2) solid var(--line);padding-block:.25rem .5rem;
}
.parts tbody th{font-weight:600}
.parts td:first-child{font-family:var(--letter);color:var(--ink-3);width:3.5rem}
.parts td:last-child{color:var(--ink-2)}

/* ---------------------------------------------------------------- contact */

.contact{grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);column-gap:clamp(2rem,6vw,6rem)}
.contact > :is(.contact__intro,.form){grid-column:auto}
.contact__intro p{margin-top:1rem;max-width:40ch;color:var(--ink-2);font-size:1.0625rem}
.direct{margin-top:1.5rem;display:grid;gap:.25rem}
.direct a{display:inline-flex;align-items:center;min-height:44px;font-weight:600}

.form{display:grid;gap:1.125rem;align-content:start}
.field{display:grid;gap:.375rem}
label{font-family:var(--letter);font-size:.875rem;color:var(--ink-2);text-transform:uppercase;letter-spacing:.04em}
.opt{text-transform:none;letter-spacing:0;color:var(--ink-3)}
input,textarea{
  font:inherit;color:var(--ink);background:var(--film);
  border:var(--lw-1) solid var(--field);border-radius:0;
  padding:.625rem .75rem;min-height:44px;width:100%;
  transition:border-color .12s var(--ease),box-shadow .12s var(--ease);
}
textarea{resize:vertical;min-height:8rem}
input:hover,textarea:hover{border-color:var(--ink)}
input:focus-visible,textarea:focus-visible{outline:none;border-color:var(--dim);box-shadow:inset 0 0 0 1px var(--dim)}
[aria-invalid="true"]{border-color:var(--danger);box-shadow:inset 0 0 0 1px var(--danger)}
.err{color:var(--danger);font-size:.9375rem;display:flex;gap:.5rem;align-items:baseline}
.err::before{
  content:"";flex:none;width:.75rem;height:.6875rem;background:currentColor;
  clip-path:polygon(50% 0,100% 100%,0 100%);translate:0 .0625rem;
}
.err[hidden]{display:none}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.form .btn{justify-self:start}
.status{min-height:1.5em;color:var(--ink-2)}
.status:focus{outline:none}
.status[data-state="error"]{color:var(--danger)}
.status[data-state="sent"]{color:var(--ink);font-weight:600}
.form.is-sending #submit{cursor:progress}
#turnstile:empty{display:none}

/* ---------------------------------------------------------------- footer */

.foot{border-top:var(--lw-3) solid var(--line)}
.foot__in{display:flex;justify-content:space-between;align-items:center;gap:1rem;min-height:4.5rem;font-size:.9375rem;color:var(--ink-3)}
.foot a{display:inline-flex;align-items:center;min-height:44px}

/* ------------------------------------------------------------- responsive */

@media (max-width:72rem){
  .tb{
    grid-template-columns:minmax(10rem,14rem) minmax(0,1fr);
    grid-template-areas:
      "p id"
      "revs revs"
      "ok ok";
  }
  .tb__revs,.tb__approve{border-left:0;border-top:var(--lw-1) solid var(--line)}
  .rev{grid-template-columns:9rem minmax(0,1fr)}
  .rev .rail--rev{grid-column:2;margin-top:1.25rem}
}

@media (max-width:52rem){
  .band,.contact{grid-template-columns:minmax(0,1fr)}
  .band > h2{margin-bottom:1.25rem}
  .band > :not(h2),.contact > *{grid-column:1}
  .contact .form{margin-top:2rem}
  .split{grid-template-columns:minmax(0,1fr)}
  .rail--side{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem}
  .rev{grid-template-columns:minmax(0,1fr);padding-inline:.5rem}
  .rev__mark{flex-direction:row;align-items:center;gap:.75rem;margin-bottom:.625rem}
  .rev .rail--rev{grid-column:1;grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:40rem){
  .tb{
    grid-template-columns:8.5rem minmax(0,1fr);
    grid-template-areas:
      "p name"
      "scope scope"
      "range range"
      "ok ok";
  }
  /* on a phone the Revisions section lists every role; the lead figures come first */
  .tb__revs{display:none}
  .tb__id{display:contents}
  .tb__portrait{padding:.625rem;border-bottom:var(--lw-1) solid var(--line)}
  .tb h1{grid-area:name;align-self:end;padding:.75rem;border-bottom:var(--lw-1) solid var(--line);font-size:clamp(2.25rem,1.2rem + 5vw,2.75rem)}
  .tb__scope{grid-area:scope;padding:1rem .875rem .25rem}
  .tb__range{grid-area:range;margin:0 .875rem;padding-bottom:1rem}
  .portrait{padding:1.375rem 1.5rem 0 0}
  .pdim{font-size:.75rem}
  .pdim--x{right:1.5rem;height:1.375rem}
  .pdim--x::before{bottom:.3125rem}
  .pdim--y{top:1.375rem;width:1.5rem}
  .pdim--y::before{left:.3125rem}
  .rt a{grid-template-columns:1.75rem 4.75rem minmax(0,1fr)}
  .rail--lead{grid-template-columns:minmax(0,1fr);gap:1.5rem}
  .rail--lead .dim__fig{font-size:2rem}
  /* the revision reference is a drawing convention; on a phone the figure's link already goes there */
  .dim__rev{display:none}
}

/* ----------------------------------------------------------------- motion */

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
}

/* ------------------------------------------------------------------ print */

@media print{
  :root{
    --film:#fff;--film-2:#fff;--ink:#111;--ink-2:#2a2f35;--ink-3:#4a525a;
    --line:#111;--line-2:#9aa3ab;--dim:#b92e1b;--dim-wash:transparent;--on-dim:#fff;
    color-scheme:light;
  }
  @page{margin:11mm 13mm}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  html{scroll-behavior:auto}
  body{font-size:8.1pt;line-height:1.3;background:#fff;color:#111}
  .skip,.strip,.contact,.foot,.tb__revs,.tb__approve .btn,.tb__approve .tb__label,.dim__rev,.note,#turnstile{display:none !important}
  .shell{max-width:none;padding-inline:0}
  a{text-decoration:none}
  .sheet{padding:0 0 3mm}
  .tb{grid-template-columns:23mm minmax(0,1fr) 62mm;grid-template-areas:"p id ok";border-width:2px}
  .tb__portrait{padding:2mm}
  .portrait{padding:0}
  .pdim{display:none}
  .tb__id{padding:3mm 4mm;gap:1.5mm}
  h1{font-size:24pt}
  .tb__scope{font-size:10.5pt;max-width:none}
  .tb__range{padding-top:1.5mm}
  .tb__approve{border-top:0;border-left:1px solid var(--line);align-content:center;padding:3mm}
  .tb__mail{min-height:0}
  .rail--lead{margin-top:3mm;gap:6mm}
  .rail--lead .dim__fig{font-size:16pt}
  .rail--lead .dim__cap{font-size:8pt}
  .dim{row-gap:1mm}
  .band{display:block;padding-block:2.2mm}
  .sheet + .band,.band + .band{background-size:100% 1px}
  .band > h2{font-size:12pt;margin-bottom:2mm}
  h3{font-size:9.6pt}
  .split{grid-template-columns:minmax(0,1fr) 44mm;gap:6mm}
  .rail--side{gap:3mm}
  .rail--side .dim__fig,.rail--rev .dim__fig{font-size:11pt}
  .dim__cap{font-size:7.2pt;line-height:1.25}
  .prose p + p{margin-top:.6em}
  .rev{grid-template-columns:22mm minmax(0,1fr) 58mm;padding:2.2mm 0;break-inside:avoid;column-gap:5mm}
  .rev:has(.detail){break-inside:auto}
  .rev__mark{align-self:start;gap:1mm}
  .rev__when{white-space:normal;font-size:7.6pt}
  .rev .rail--rev{grid-column:auto;margin-top:0;grid-template-columns:repeat(2,minmax(0,1fr));gap:2mm 4mm}
  .rev__scope{margin-top:1mm}
  .rev__letter{width:6mm;height:5.4mm;font-size:7.6pt;padding-top:1mm}
  .detail{margin-top:1.5mm;border-top:0}
  .detail summary{min-height:0;padding:0;font-size:8.1pt}
  .detail summary::after{display:none}
  .detail::details-content{content-visibility:visible;display:block}
  .detail__body{padding:1mm 0 0}
  .bom{margin-top:1.5mm;max-width:none}
  .bom figcaption{display:inline;border:0;padding:0;margin-right:2mm;font-size:7.6pt}
  .bom ol{display:inline}
  .bom li{display:inline;padding:0;border:0;font-weight:600;white-space:nowrap}
  .bom li::before{content:counter(bom) " ";margin-right:.4mm;font-size:7.6pt}
  .bom li + li{margin-left:3mm}
  .notes{gap:2mm;max-width:none}
  .notes li{grid-template-columns:5mm minmax(0,1fr);break-inside:avoid}
  .notes li::before{font-size:9pt}
  .notes h3{font-size:9.6pt}
  .notes p{margin-top:0}
  .parts th,.parts td{padding:1mm 3mm 1mm 0}
  .contact{display:block}
  .contact__intro p{max-width:none;margin-top:1mm;font-size:8.6pt}
  .direct{margin-top:1mm;display:flex;gap:6mm}
  .direct a{min-height:0;display:inline}
  h2,.band > h2{font-size:12pt;margin-bottom:2mm}
  .contact__intro h2{font-size:12pt}
  .tb__approve{flex-direction:column;align-items:flex-start;justify-content:center;gap:1mm}
  .tb__mail{display:inline;font-size:8.6pt}
  .tb__mail[href^="http"]::after{content:" " attr(href);color:var(--ink-3)}
  .rev__org{font-size:8.1pt}
  .rev__letter{font-weight:700}
  .rev__letter::before,.rev__letter::after{display:none}
  .rev .rail--rev{grid-template-columns:repeat(3,minmax(0,1fr));gap:2mm 3mm}
  .rev{grid-template-columns:18mm minmax(0,1fr) 66mm;padding-block:1.6mm}
  .rail--rev .dim--wide{grid-column:span 2}
  .rail--lead li,.notes li,.parts tr{break-inside:avoid}
  h2,h3{break-after:avoid}
}