/* kerrandcompanyholdings.com, one stylesheet for the three pages it serves
   (/, /affiliates/, /404.html).

   FAMILY. builtbykerr.com's warm paper and amber, and the same Kerr & Co.
   sunflower mark, so the two Kerr sites read as one company. The display face
   is the system serif this domain always used; nothing is downloaded.

   TOKENS THE OPS GATES READ, so do not rename them:
     ink, ink-2 on paper, card, sink   ops/bin/contrast-gate.py (AA, 4.5:1)
     mark                              ops/bin/favicon-gate.py (icon colour)
   accent-ink is the only amber used for TEXT; mark is for strokes and rules
   (3.2:1 on sink, fine for a graphic, not for words).

   TYPE SCALE. Eight sizes and no others: 12, 14, 16, 17, 20, 26, 36 and the
   h1. ops/bin/type-scale-gate.py fails the homepage above 14 distinct rendered
   sizes, and the cause is always a one-off value picked to sit well beside its
   neighbour. Use a token. */

:root{
  color-scheme:light;
  --paper:#F6F2E9;
  --card:#FFFDF8;
  --sink:#ECE4D3;
  --ink:#17130C;         /* 16.6:1 paper, 14.6:1 sink */
  --ink-2:#51483A;       /* 7.0:1 on sink, the worst ground */
  --accent-ink:#7E5410;  /* amber text: 5.25:1 on sink */
  --mark:#A8741C;        /* amber strokes and rules only */
  --rule:#DDD3BF;
  --rule-2:#C9BCA2;
  --btn-bg:#17130C; --btn-ink:#FFFDF8;
  --band:#17130C; --band-ink:#F6F2E9; --band-ink-2:#C8BEAA; --band-mark:#F0B545; --band-rule:#3A3022;
  --glow:rgba(240,181,69,.20);
  --shadow:0 1px 2px rgba(23,19,12,.06),0 22px 44px -24px rgba(23,19,12,.32);
  --sun:none; --moon:block;

  --serif:ui-serif,"Iowan Old Style","Palatino Linotype",Charter,Georgia,Cambria,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --fs-xs:.75rem;     /* 12  labels, captions */
  --fs-sm:.875rem;    /* 14  small print, footer, codes */
  --fs-ui:1rem;       /* 16  nav, buttons */
  --fs-md:1.0625rem;  /* 17  body */
  --fs-lg:1.25rem;    /* 20  lead, wordmark */
  --fs-xl:1.625rem;   /* 26  sub-heads */
  --fs-2xl:clamp(1.75rem,1.2rem + 1.6vw,2.25rem);   /* 36 at desktop */
  --fs-3xl:clamp(2.375rem,1.2rem + 3.6vw,3.5rem);   /* 56 at desktop */

  --wrap:72rem;
  --gutter:clamp(1rem,4vw,2rem);   /* 16px on a phone */
  --measure:40rem;
  --radius:10px;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --paper:#0F0D09; --card:#1A160F; --sink:#080705;
    --ink:#F4EFE4; --ink-2:#BCB3A1; --accent-ink:#F0B545; --mark:#F0B545;
    --rule:#2E271B; --rule-2:#473C2A;
    --btn-bg:#F0B545; --btn-ink:#17130C;
    --band:#1A160F; --band-ink:#F4EFE4; --band-ink-2:#BCB3A1; --band-mark:#F0B545; --band-rule:#3A3022;
    --glow:rgba(240,181,69,.10);
    --shadow:0 1px 2px rgba(0,0,0,.5),0 22px 44px -24px rgba(0,0,0,.8);
    --sun:block; --moon:none;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --paper:#0F0D09; --card:#1A160F; --sink:#080705;
  --ink:#F4EFE4; --ink-2:#BCB3A1; --accent-ink:#F0B545; --mark:#F0B545;
  --rule:#2E271B; --rule-2:#473C2A;
  --btn-bg:#F0B545; --btn-ink:#17130C;
  --band:#1A160F; --band-ink:#F4EFE4; --band-ink-2:#BCB3A1; --band-mark:#F0B545; --band-rule:#3A3022;
  --glow:rgba(240,181,69,.10);
  --shadow:0 1px 2px rgba(0,0,0,.5),0 22px 44px -24px rgba(0,0,0,.8);
  --sun:block; --moon:none;
}

/* ── base ─────────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:5.5rem}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--paper);color:var(--ink);
  font:var(--fs-md)/1.6 var(--sans);-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px;
  text-decoration-color:var(--rule-2)}
a:hover{text-decoration-color:currentColor}
:focus-visible{outline:2px solid var(--accent-ink);outline-offset:3px;border-radius:4px}
button{font:inherit;color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.1;letter-spacing:-.015em;
  margin:0;text-wrap:balance}
h1{font-size:var(--fs-3xl);letter-spacing:-.022em}
h2{font-size:var(--fs-2xl)}
h3{font-size:var(--fs-xl)}
p{margin:0 0 1rem}
strong{font-weight:600;color:var(--ink)}
code{font-family:var(--mono);font-size:var(--fs-sm)}
ul{margin:0}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.sr-only{position:absolute;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:var(--gutter);top:-4rem;z-index:50;padding:.6rem 1rem;
  background:var(--btn-bg);color:var(--btn-ink);border-radius:8px;font-size:var(--fs-ui);
  text-decoration:none}
.skip:focus{top:.75rem}

.eyebrow{display:flex;align-items:center;gap:.65rem;margin:0 0 1.25rem;
  font-family:var(--mono);font-size:var(--fs-xs);font-weight:500;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent-ink)}
.eyebrow::before{content:"";flex:none;width:1.5rem;height:1px;background:currentColor}

/* ── buttons ──────────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:2.875rem;padding:.65rem 1.15rem;border:1px solid var(--rule-2);border-radius:8px;
  background:transparent;color:var(--ink);font-size:var(--fs-ui);font-weight:600;line-height:1.25;
  text-decoration:none;transition:background-color .15s,border-color .15s,color .15s}
.btn:hover{border-color:var(--ink)}
.btn-primary{background:var(--btn-bg);border-color:var(--btn-bg);color:var(--btn-ink)}
.btn-primary:hover{background:var(--accent-ink);border-color:var(--accent-ink);color:var(--card)}
.btn .arr{transition:transform .15s}
.btn:hover .arr{transform:translateX(2px)}
.actions{display:flex;flex-wrap:wrap;gap:.75rem}

/* ── founding offer strip (every page) ────────────────────────────────── */
.offer{background:var(--band);color:var(--band-ink);font-size:var(--fs-sm);
  border-bottom:1px solid var(--band-rule)}
.offer a{display:block;min-height:2.5rem;padding:.55rem var(--gutter);text-align:center;
  line-height:1.45;text-decoration:none}
.offer strong{color:var(--band-mark);font-weight:600}
.offer a:hover .offer-text{text-decoration:underline;text-decoration-color:var(--band-mark)}
.offer a:focus-visible{outline-color:var(--band-mark);outline-offset:-3px}

/* ── header ───────────────────────────────────────────────────────────── */
.site-header{position:sticky;top:0;z-index:30;background:var(--paper);
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  -webkit-backdrop-filter:saturate(1.3) blur(12px);backdrop-filter:saturate(1.3) blur(12px);
  border-bottom:1px solid var(--rule)}
.bar{display:flex;align-items:center;gap:.5rem;min-height:4.25rem}
.brand{display:inline-flex;align-items:center;gap:.65rem;min-height:2.75rem;margin-right:auto;
  text-decoration:none;color:var(--ink)}
.brand-mark{flex:none;width:2.25rem;height:2.25rem;color:var(--mark);fill:none;
  stroke:currentColor;stroke-width:3.6;stroke-linejoin:round}
.brand-name{font-family:var(--serif);font-size:var(--fs-lg);font-weight:600;
  letter-spacing:-.01em;white-space:nowrap}
.site-nav ul{list-style:none;padding:0;display:flex;align-items:center;gap:.15rem}
.site-nav a{display:inline-flex;align-items:center;min-height:2.75rem;padding:0 .8rem;
  border-radius:8px;font-size:var(--fs-ui);color:var(--ink-2);text-decoration:none}
.site-nav a:hover{color:var(--ink);background:var(--sink)}
.site-nav a[aria-current="page"]{color:var(--ink);box-shadow:inset 0 -2px 0 var(--mark)}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  min-width:2.75rem;height:2.75rem;padding:0 .7rem;border:1px solid var(--rule);border-radius:8px;
  background:transparent;color:var(--ink-2);cursor:pointer;font-size:var(--fs-ui)}
.icon-btn:hover{color:var(--ink);border-color:var(--rule-2)}
.icon-btn svg{flex:none;width:1.15rem;height:1.15rem;fill:none;stroke:currentColor;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round}
.theme-toggle{padding:0}
.theme-toggle .i-sun{display:var(--sun)}
.theme-toggle .i-moon{display:var(--moon)}
.menu-btn{display:none}

@media (max-width:56rem){
  .js .menu-btn{display:inline-flex}
  .js .site-nav{display:none;position:absolute;left:0;right:0;top:100%;
    background:var(--paper);border-bottom:1px solid var(--rule);box-shadow:var(--shadow)}
  .js .site-nav.open{display:block}
  .js .site-nav ul{flex-direction:column;align-items:stretch;gap:0;
    max-width:var(--wrap);margin-inline:auto;padding:.5rem var(--gutter) 1rem}
  .js .site-nav a{display:flex;min-height:3rem;padding:0 .5rem;border-bottom:1px solid var(--rule);
    border-radius:0}
  .js .site-nav li:last-child a{border-bottom:0}
  .js .site-nav a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--mark)}
  /* Without JavaScript there is no menu button, so the links wrap onto their
     own row instead of disappearing. */
  html:not(.js) .bar{flex-wrap:wrap;padding-block:.5rem}
  html:not(.js) .site-nav{order:3;width:100%}
  html:not(.js) .site-nav ul{flex-wrap:wrap}
}
/* A phone has 343px for the brand, Menu and the theme button. The word "Menu"
   is what does not fit, so it becomes the button's accessible name only. */
@media (max-width:26rem){
  .menu-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
  .menu-btn{padding:0}
}
@media (max-width:22rem){ .brand-name{font-size:var(--fs-md)} }

/* ── hero ─────────────────────────────────────────────────────────────── */
.hero{position:relative;overflow:hidden;
  padding-block:clamp(3.5rem,8vw,6.5rem) clamp(3.5rem,7vw,5.5rem);
  background:radial-gradient(38rem 30rem at 82% 42%,var(--glow),transparent 70%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:2.5rem;align-items:center}
.hero h1{max-width:17ch}
.lead{max-width:36rem;margin:1.5rem 0 2rem;font-size:var(--fs-lg);line-height:1.55;color:var(--ink-2)}
.facts{list-style:none;padding:0;margin-top:2rem;display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;
  font-family:var(--mono);font-size:var(--fs-xs);letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-2)}
.facts li{display:flex;align-items:center;gap:.5rem}
.facts li::before{content:"";width:.4rem;height:.4rem;border-radius:50%;background:var(--mark)}
.hero-art{display:none}
@media (min-width:60rem){
  .hero-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:3rem}
  .hero-art{display:block;justify-self:end;width:min(100%,25rem);aspect-ratio:1;color:var(--mark)}
  .hero-art svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:.7;
    stroke-linejoin:round}
}

/* ── sections ─────────────────────────────────────────────────────────── */
.section{padding-block:clamp(4rem,9vw,7rem)}
.section-head{max-width:46rem;margin-bottom:clamp(2.5rem,5vw,4rem)}
.section-head p:not(.eyebrow){margin:1.1rem 0 0;color:var(--ink-2)}
.rule-top{border-top:1px solid var(--rule)}

/* ── products ─────────────────────────────────────────────────────────── */
.product{display:grid;grid-template-columns:minmax(0,1fr);gap:1.75rem;align-items:center}
.product + .product{margin-top:clamp(4rem,9vw,7rem)}
@media (min-width:60rem){
  .product{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:3.5rem}
  .product:nth-of-type(even){grid-template-columns:minmax(0,1fr) minmax(0,1.3fr)}
  .product:nth-of-type(even) .shot{order:2}
}
.shot{margin:0}
.shot-frame{border:1px solid var(--rule-2);border-radius:var(--radius);overflow:hidden;
  background:var(--card);box-shadow:var(--shadow)}
.shot-bar{display:flex;align-items:center;gap:.4rem;height:2.1rem;padding:0 .8rem;
  border-bottom:1px solid var(--rule);background:var(--card)}
.shot-bar i{flex:none;width:.55rem;height:.55rem;border-radius:50%;background:var(--rule-2)}
.shot-url{flex:1;margin-right:1.6rem;text-align:center;font-family:var(--mono);
  font-size:var(--fs-xs);color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.shot img{width:100%;aspect-ratio:1600/1002;background:#0b0b10}
.shot figcaption{margin-top:.8rem;font-family:var(--mono);font-size:var(--fs-xs);
  letter-spacing:.02em;color:var(--ink-2)}
.product-no{margin:0 0 .6rem;font-family:var(--mono);font-size:var(--fs-xs);letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent-ink)}
.product h3{font-size:var(--fs-2xl)}
.product-what{margin:.6rem 0 1.5rem;font-size:var(--fs-lg);line-height:1.45;color:var(--ink-2)}
.spec{margin:0 0 1.75rem;border-top:1px solid var(--rule-2)}
.spec > div{display:grid;grid-template-columns:8.5rem minmax(0,1fr);gap:1rem;
  padding:.8rem 0;border-bottom:1px solid var(--rule)}
.spec dt{padding-top:.2rem;font-family:var(--mono);font-size:var(--fs-xs);letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-2)}
.spec dd{margin:0}
.spec .price{font-family:var(--serif);font-size:var(--fs-xl);font-weight:600;line-height:1.2}
.spec .price-note{display:block;color:var(--ink-2)}
.code{display:inline-block;padding:.05rem .45rem;border:1px dashed var(--mark);border-radius:5px;
  background:var(--card);color:var(--ink);letter-spacing:.04em;white-space:nowrap}
@media (max-width:30rem){
  .spec > div{grid-template-columns:minmax(0,1fr);gap:.2rem}
}
.licence-note{display:grid;gap:.5rem 2rem;margin-top:clamp(3.5rem,8vw,6rem);padding:1.5rem 1.75rem;
  border:1px solid var(--rule-2);border-radius:var(--radius);background:var(--card)}
.licence-note p{margin:0;color:var(--ink-2)}
@media (min-width:52rem){.licence-note{grid-template-columns:auto minmax(0,1fr);align-items:baseline}}

/* ── Built by Kerr band ───────────────────────────────────────────────── */
.band{background:var(--band);color:var(--band-ink);border-block:1px solid var(--band-rule)}
.band .eyebrow{color:var(--band-mark)}
.band p{color:var(--band-ink-2)}
.band strong{color:var(--band-ink)}
.band a:focus-visible{outline-color:var(--band-mark)}
.band-grid{display:grid;gap:2.5rem}
@media (min-width:60rem){.band-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);
  gap:4.5rem;align-items:center}}
.band .lead{color:var(--band-ink)}
.services{list-style:none;padding:0;border-top:1px solid var(--band-rule)}
.services li{display:flex;align-items:baseline;gap:1.1rem;padding:1.05rem 0;
  border-bottom:1px solid var(--band-rule);font-family:var(--serif);font-size:var(--fs-xl);
  line-height:1.2}
.services span{font-family:var(--mono);font-size:var(--fs-xs);letter-spacing:.1em;color:var(--band-mark)}
.btn-amber{background:var(--band-mark);border-color:var(--band-mark);color:#17130C}
.btn-amber:hover{background:var(--band-ink);border-color:var(--band-ink);color:#17130C}

/* ── affiliate call-out ───────────────────────────────────────────────── */
.cta{display:grid;gap:1.5rem;padding:clamp(1.75rem,4vw,3rem);border:1px solid var(--rule-2);
  border-radius:14px;background:var(--card);box-shadow:var(--shadow)}
.cta h2{font-size:var(--fs-xl)}
.cta p:not(.eyebrow){margin:.75rem 0 0;max-width:40rem;color:var(--ink-2)}
@media (min-width:52rem){.cta{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:3rem}}

/* ── company & legal ──────────────────────────────────────────────────── */
.company{background:var(--sink);border-block:1px solid var(--rule)}
.company-grid{display:grid;gap:2.5rem}
.company-head p:not(.eyebrow){color:var(--ink-2)}
.company-head p.company-intro{margin-top:1.1rem}
.toc{list-style:none;padding:0;margin-top:1.5rem;border-top:1px solid var(--rule-2)}
.toc a{display:flex;align-items:center;min-height:2.75rem;border-bottom:1px solid var(--rule-2);
  font-size:var(--fs-sm);text-decoration:none;color:var(--ink-2)}
.toc a:hover{color:var(--ink)}
@media (min-width:60rem){
  .company-grid{grid-template-columns:minmax(0,19rem) minmax(0,1fr);gap:4.5rem;align-items:start}
  .company-head{position:sticky;top:6rem}
}
.company-body{max-width:var(--measure)}
.company-body > h3{margin:3rem 0 .8rem;padding-top:1.5rem;border-top:1px solid var(--rule-2)}
.company-body p{color:var(--ink-2)}
.record{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.55rem 1.5rem;margin:0;
  padding:1.4rem 1.5rem;border:1px solid var(--rule-2);border-radius:var(--radius);background:var(--card)}
.record dt{padding-top:.22rem;font-family:var(--mono);font-size:var(--fs-xs);letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-2)}
.record dd{margin:0;overflow-wrap:anywhere}
.record .ident{font-family:var(--mono);font-size:var(--fs-sm)}
@media (max-width:34rem){
  .record{grid-template-columns:minmax(0,1fr);gap:.1rem}
  .record dt{padding-top:.7rem}
  .record dt:first-child{padding-top:0}
}
.pubs{list-style:none;padding:0;margin:1.25rem 0 0;display:grid;gap:.7rem}
.pubs li{padding:1rem 1.15rem;border:1px solid var(--rule);border-radius:8px;background:var(--card)}
.pubs .name{font-family:var(--serif);font-size:var(--fs-lg);font-weight:600;color:var(--ink);text-decoration:none}
.pubs .name:hover{text-decoration:underline}
.pubs .what{display:block;margin:.15rem 0 .35rem;font-size:var(--fs-sm);color:var(--ink-2)}
.pubs .docs{font-size:var(--fs-sm);color:var(--ink-2)}
.pubs .docs a,.pubs .name{display:inline-block;padding-block:.2rem}
.pubs .price{display:block;font-family:var(--mono);font-size:var(--fs-sm);color:var(--ink)}

/* ── contact ──────────────────────────────────────────────────────────── */
.contact-grid{display:grid;gap:1.5rem}
@media (min-width:52rem){.contact-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:4rem;align-items:end}}
.email{font-family:var(--serif);font-size:var(--fs-xl);font-weight:600;color:var(--ink);
  overflow-wrap:anywhere;text-decoration-color:var(--mark);text-underline-offset:6px}
.contact p:not(.eyebrow){color:var(--ink-2)}
@media (max-width:30rem){.email{font-size:var(--fs-lg)}}
.contact .email-line{margin-top:1.1rem}

/* ── document pages (affiliates, 404) ─────────────────────────────────── */
.page-head{padding-block:clamp(3rem,7vw,5rem) clamp(2rem,4vw,3rem);border-bottom:1px solid var(--rule);
  background:radial-gradient(34rem 22rem at 90% 0%,var(--glow),transparent 70%)}
.page-head .lead{margin-bottom:0}
.page-head .lead + .actions{margin-top:2rem}
.doc{padding-block:clamp(2.5rem,5vw,3.5rem) clamp(4rem,8vw,6rem)}
.doc > *{max-width:var(--measure)}
.doc > h2{font-size:var(--fs-xl);margin:3rem 0 .8rem;padding-top:1.5rem;border-top:1px solid var(--rule-2)}
.doc p,.doc li{color:var(--ink-2)}
.doc ul:not(.pubs){padding-left:1.2rem;display:grid;gap:.5rem}
.doc ul:not(.pubs) li::marker{color:var(--mark)}

/* ── footer ───────────────────────────────────────────────────────────── */
.site-footer{background:var(--sink);border-top:1px solid var(--rule-2);color:var(--ink-2);
  font-size:var(--fs-sm)}
.foot-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2.25rem 1.5rem;
  padding-block:3.5rem 2.5rem}
.foot-brand{grid-column:1/-1;max-width:22rem}
.foot-brand .brand{margin-bottom:.5rem}
.foot-brand p{margin:0}
@media (min-width:52rem){
  .foot-grid{grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr))}
  .foot-brand{grid-column:auto}
}
@media (max-width:51.99rem){.foot-col:last-child{grid-column:1/-1}}
.foot-col h2{margin:0 0 .6rem;font-family:var(--mono);font-size:var(--fs-xs);font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--ink)}
.foot-col ul{list-style:none;padding:0}
.foot-col a{display:inline-flex;align-items:center;min-height:2rem;text-decoration:none}
.foot-col a:hover{color:var(--ink);text-decoration:underline}
.foot-base{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem 1.5rem;
  padding-block:1.25rem 2rem;border-top:1px solid var(--rule-2)}
.foot-base a{display:inline-flex;align-items:center;min-height:1.5rem}
.foot-base p{margin:0}
.foot-base a{overflow-wrap:anywhere}

@media print{
  .offer,.site-header,.hero-art,.menu-btn,.theme-toggle{display:none}
  body{background:#fff;color:#000}
}