/* Dogile — rail-scale */

:root{
  --bg:#fbf9f5;
  --bg-alt:#e4e8e1;
  --bg-dark:#223129;
  --ink:#22201c;
  --ink-soft:#797468;
  --ink-inv:#fbf9f5;
  --accent:#54684e;
  --accent2:#a87c48;
  --step:80px;
  --gap:24px;
}

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

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  font-size:17px;
  line-height:1.7;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block;}

a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
a:hover{text-decoration-thickness:2px;}
a:focus-visible,
button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

/* ---------- grid shell ---------- */

.wrap{
  max-width:1240px;
  margin:0 auto;
  padding:0 28px;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:var(--gap);
}

.rail{
  grid-column:1 / span 2;
  font-size:13px;
  line-height:1.4;
  color:var(--ink-soft);
  letter-spacing:.08em;
  text-transform:uppercase;
}

.rail .num{
  display:block;
  color:var(--accent2);
  font-weight:700;
  font-size:13px;
  letter-spacing:.12em;
  margin-bottom:8px;
}

.rail .lbl{display:block;}

/* ticks: repeating scale marks, pure CSS */
.ticks{
  margin-top:14px;
  height:120px;
  width:100%;
  background-image:repeating-linear-gradient(
    to bottom,
    var(--accent) 0,
    var(--accent) 1px,
    transparent 1px,
    transparent 12px);
  opacity:.55;
}

.ticks--short{height:56px;}

.body7{grid-column:3 / span 7;}
.body9{grid-column:3 / span 9;}
.body6{grid-column:3 / span 6;}

/* ---------- header / nav ---------- */

.site-head{
  border-bottom:1px solid rgba(34,32,28,.14);
  background:var(--bg);
}

.site-head .wrap{
  padding-top:22px;
  padding-bottom:22px;
  align-items:baseline;
  row-gap:12px;
}

.brand{
  grid-column:1 / span 3;
  font-weight:700;
  font-size:20px;
  letter-spacing:-.02em;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{color:var(--accent);}

.brand .brand-sub{
  display:block;
  font-weight:400;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-soft);
  margin-top:4px;
}

.site-nav{grid-column:5 / span 8;}

.site-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  justify-content:flex-end;
}

.site-nav a{
  font-size:14px;
  letter-spacing:.04em;
  text-decoration:none;
  color:var(--ink);
  padding-bottom:3px;
  border-bottom:1px solid transparent;
}
.site-nav a:hover{border-bottom-color:var(--accent);color:var(--accent);}
.site-nav a[aria-current="page"]{border-bottom-color:var(--accent2);color:var(--accent);}

/* ---------- hero ---------- */

.hero{padding:calc(var(--step) * .9) 0 var(--step);}

.hero h1{
  grid-column:3 / span 8;
  margin:0 0 22px;
  font-size:clamp(34px,5.4vw,62px);
  line-height:1.06;
  font-weight:700;
  letter-spacing:-.03em;
}

.hero .lead{
  grid-column:3 / span 6;
  margin:0;
  font-size:19px;
  color:var(--ink);
}

.hero .lead + .lead{margin-top:18px;}

/* ---------- sections ---------- */

section{padding:var(--step) 0;}

.band{background:var(--bg-alt);}
.dark{background:var(--bg-dark);color:var(--ink-inv);}
.dark h2,.dark h3{color:var(--ink-inv);}
.dark a{color:#cbd8c2;}
.dark .rail{color:#a9b5a2;}
.dark .rail .num{color:#c9a978;}
.dark .ticks{background-image:repeating-linear-gradient(to bottom,#8fa286 0,#8fa286 1px,transparent 1px,transparent 12px);opacity:.7;}
.dark .cap{color:#a9b5a2;}

h2{
  margin:0 0 20px;
  font-size:clamp(23px,2.6vw,31px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.015em;
}

h3{
  margin:34px 0 10px;
  font-size:18px;
  font-weight:700;
  letter-spacing:-.005em;
}

p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}

.cap{
  font-size:13px;
  line-height:1.5;
  color:var(--ink-soft);
}

/* short vertical stroke separators */
.strokes{
  display:block;
  height:24px;
  margin:34px 0;
  background-image:repeating-linear-gradient(
    to right,
    var(--accent2) 0,
    var(--accent2) 1px,
    transparent 1px,
    transparent 14px);
  opacity:.6;
}

/* ---------- lists ---------- */

ul.cols,ol.cols{
  grid-column:3 / span 9;
  margin:0;
  padding:0 0 0 20px;
  columns:2;
  column-gap:44px;
}
ul.cols li,ol.cols li{
  margin:0 0 14px;
  padding-left:4px;
  break-inside:avoid;
}
ul.cols{list-style:square;}
ul.cols li::marker,ol.cols li::marker{color:var(--accent);}

ul.plain{
  margin:0 0 18px;
  padding-left:20px;
  list-style:square;
}
ul.plain li{margin-bottom:12px;}
ul.plain li::marker{color:var(--accent);}

dl.terms{margin:0;}
dl.terms dt{
  font-weight:700;
  margin-top:22px;
}
dl.terms dd{margin:4px 0 0;color:var(--ink);}

/* ---------- figures ---------- */

.figure-main{padding-bottom:var(--step);}

.figure-main figure{
  grid-column:4 / span 9;
  margin:0;
}
.figure-main img{width:100%;}

.figure-main .cap{
  grid-column:1 / span 3;
  grid-row:1;
  align-self:end;
  padding-bottom:2px;
  border-left:2px solid var(--accent2);
  padding-left:12px;
}

.split{
  align-items:start;
  row-gap:36px;
}
.split figure{
  grid-column:3 / span 4;
  margin:0;
}
.split figure img{width:100%;}
.split figure figcaption{margin-top:12px;}
.split .split-text{grid-column:8 / span 5;}

/* ---------- table ---------- */

.tblwrap{
  grid-column:3 / span 9;
  overflow-x:auto;
}
table{
  border-collapse:collapse;
  width:100%;
  min-width:520px;
  font-size:16px;
}
caption{
  text-align:left;
  font-size:13px;
  color:var(--ink-soft);
  padding-bottom:10px;
}
th,td{
  text-align:left;
  padding:11px 14px 11px 0;
  border-bottom:1px solid rgba(34,32,28,.16);
  vertical-align:top;
}
th{font-weight:700;}
.band th,.band td{border-bottom-color:rgba(34,32,28,.22);}

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

.site-foot{
  background:var(--bg);
  border-top:1px solid rgba(34,32,28,.18);
  padding:34px 0 40px;
}

.patchbay{
  align-items:center;
  row-gap:14px;
}
.patchbay .f-name{
  grid-column:1 / span 3;
  font-weight:700;
  letter-spacing:-.01em;
}
.patchbay nav{grid-column:4 / span 6;}
.patchbay ul{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px 22px;
  justify-content:center;
}
.patchbay ul a{font-size:14px;text-decoration:none;color:var(--ink);border-bottom:1px solid transparent;}
.patchbay ul a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.patchbay .f-mail{
  grid-column:10 / span 3;
  text-align:right;
  font-size:15px;
}

.foot-rule{
  grid-column:1 / -1;
  height:1px;
  background:rgba(34,32,28,.18);
  margin:24px 0 12px;
}
.foot-note{
  grid-column:1 / -1;
  font-size:13px;
  color:var(--ink-soft);
  margin:0;
}

/* ---------- page header (inner pages) ---------- */

.page-head{padding:calc(var(--step) * .8) 0 calc(var(--step) * .55);}
.page-head h1{
  grid-column:3 / span 8;
  margin:0 0 18px;
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.1;
  font-weight:700;
  letter-spacing:-.03em;
}
.page-head .lead{
  grid-column:3 / span 7;
  margin:0;
  font-size:19px;
}

.prose{padding:0 0 var(--step);}
.prose .body7 > h2:first-child{margin-top:0;}
.prose .body7 h2{margin-top:44px;}
.prose .body7 h2:first-of-type{margin-top:0;}

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

@media (max-width:900px){
  :root{--step:48px;--gap:18px;}
  body{font-size:16.5px;}
  .wrap{padding:0 20px;grid-template-columns:repeat(6,1fr);}

  .rail{
    grid-column:1 / -1;
    margin-bottom:14px;
  }
  .rail .num{display:inline;margin-right:10px;}
  .rail .lbl{display:inline;}
  .ticks,.ticks--short{
    height:6px;
    margin-top:10px;
    background-image:repeating-linear-gradient(to right,var(--accent) 0,var(--accent) 1px,transparent 1px,transparent 10px);
  }
  .dark .ticks{background-image:repeating-linear-gradient(to right,#8fa286 0,#8fa286 1px,transparent 1px,transparent 10px);}

  .body7,.body9,.body6,
  .hero h1,.hero .lead,
  .page-head h1,.page-head .lead,
  ul.cols,ol.cols,.tblwrap{grid-column:1 / -1;}

  ul.cols,ol.cols{columns:1;}

  .brand{grid-column:1 / -1;}
  .site-nav{grid-column:1 / -1;}
  .site-nav ul{justify-content:flex-start;gap:8px 18px;}

  .figure-main figure{grid-column:1 / -1;}
  .figure-main .cap{
    grid-column:1 / -1;
    grid-row:auto;
    margin-top:12px;
  }

  .split figure,.split .split-text{grid-column:1 / -1;}

  .patchbay .f-name,.patchbay nav,.patchbay .f-mail{grid-column:1 / -1;text-align:left;}
  .patchbay ul{justify-content:flex-start;}
}

@media (max-width:520px){
  .hero h1{font-size:31px;}
  table{min-width:440px;font-size:15px;}
}