/* Brolustanik — rail-scale */

:root{
  --bg:#f2ebe0;
  --bg-alt:#e7d9c6;
  --bg-dark:#4a2c1e;
  --ink:#241a14;
  --ink-soft:#6e5b4c;
  --ink-inv:#f2ebe0;
  --accent:#c05a2b;
  --accent-2:#6b7a5a;
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --step:80px;
}

*{box-sizing:border-box;}

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

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.72;
  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,
:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}

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

.grid{
  max-width:1240px;
  margin:0 auto;
  padding:0 28px;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:24px;
}

.rail{
  grid-column:1 / span 2;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent-2);
  padding-top:6px;
}

.rail .num{
  display:block;
  color:var(--accent);
  margin-bottom:10px;
}

.rail .label{display:block;line-height:1.5;}

/* CSS-only measuring scale */
.ticks{
  margin-top:16px;
  height:180px;
  width:34px;
  background-image:linear-gradient(to bottom,var(--accent-2) 1px,transparent 1px);
  background-size:100% 12px;
  opacity:.55;
}

.ticks.short{height:96px;}

.body-col{grid-column:3 / span 7;}
.wide-col{grid-column:3 / span 9;}

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

.site-head{
  border-bottom:1px solid rgba(110,91,76,.35);
  padding:22px 0 20px;
}

.site-head .grid{align-items:baseline;row-gap:12px;}

.brand{
  grid-column:1 / span 3;
  font-family:var(--serif);
  font-size:21px;
  letter-spacing:.01em;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{text-decoration:none;color:var(--accent);}

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

.site-nav ul{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px 26px;
  justify-content:flex-end;
}

.site-nav a{
  font-size:13px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ink-soft);
  text-decoration:none;
  padding:4px 0;
  border-bottom:1px solid transparent;
}
.site-nav a:hover,
.site-nav a[aria-current="page"]{
  color:var(--ink);
  border-bottom-color:var(--accent);
}

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

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

.hero{padding:calc(var(--step) + 16px) 0 var(--step);}

.tone{background:var(--bg-alt);}

.dark{
  background:var(--bg-dark);
  color:var(--ink-inv);
}
.dark h2,.dark h3{color:var(--ink-inv);}
.dark .rail{color:#c4b49f;}
.dark .rail .num{color:#e08a5a;}
.dark .ticks{background-image:linear-gradient(to bottom,#c4b49f 1px,transparent 1px);}
.dark a{color:#e08a5a;}
.dark .caption{color:#c4b49f;}
.dark .marks span{background:#e08a5a;}

/* ---------- typography ---------- */

h1{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(34px,5.2vw,54px);
  line-height:1.14;
  letter-spacing:-.01em;
  margin:0 0 26px;
}

h2{
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(25px,3vw,33px);
  line-height:1.22;
  margin:0 0 20px;
}

h3{
  font-family:var(--serif);
  font-style:italic;
  font-weight:400;
  font-size:21px;
  line-height:1.3;
  margin:34px 0 12px;
}

p{margin:0 0 20px;}
p:last-child{margin-bottom:0;}

.lede{
  font-size:19px;
  line-height:1.66;
  color:var(--ink-soft);
}

.caption{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-soft);
  line-height:1.6;
}

.soft{color:var(--ink-soft);}

/* separators: short vertical strokes */
.marks{
  display:flex;
  gap:9px;
  margin:34px 0;
}
.marks span{
  display:block;
  width:1px;
  height:24px;
  background:var(--accent);
  opacity:.8;
}

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

.list-block{grid-column:3 / span 9;}

.cols2{
  columns:2;
  column-gap:44px;
}

ul.checks,ol.steps{
  margin:0;
  padding:0;
  list-style:none;
}

ul.checks li{
  position:relative;
  padding-left:22px;
  margin-bottom:14px;
  break-inside:avoid;
}
ul.checks li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:9px;height:1px;
  background:var(--accent);
}

ol.steps{counter-reset:s;}
ol.steps li{
  counter-increment:s;
  position:relative;
  padding-left:40px;
  margin-bottom:18px;
  break-inside:avoid;
}
ol.steps li::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;
  left:0;top:2px;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--accent-2);
}

dl.terms{margin:0;}
dl.terms dt{
  font-family:var(--serif);
  font-style:italic;
  font-size:20px;
  margin-top:26px;
}
dl.terms dt:first-child{margin-top:0;}
dl.terms dd{margin:8px 0 0;}

/* ---------- images ---------- */

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

.figure-main-cap{
  grid-column:1 / span 3;
  padding-top:6px;
  padding-right:16px;
}

.detail-figure{
  grid-column:3 / span 4;
}
.detail-figure img{width:100%;}
.detail-figure figcaption{margin-top:12px;}

.detail-text{grid-column:8 / span 5;}

figure{margin:0;}

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

.site-foot{
  border-top:1px solid rgba(110,91,76,.35);
  padding:34px 0 46px;
  margin-top:var(--step);
}

.patchbay{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:18px 32px;
  flex-wrap:wrap;
}

.patchbay .pb-name{
  font-family:var(--serif);
  font-size:19px;
}

.patchbay ul{
  list-style:none;
  margin:0;padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:6px 22px;
}
.patchbay ul a{
  font-size:13px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink-soft);
  text-decoration:none;
  border-bottom:1px solid transparent;
}
.patchbay ul a:hover{color:var(--ink);border-bottom-color:var(--accent);}

.foot-rule{
  height:1px;
  background:rgba(110,91,76,.35);
  margin:22px 0 14px;
}

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

@media (max-width:900px){
  :root{--step:48px;}
  body{font-size:16.5px;}
  .grid{
    grid-template-columns:1fr;
    column-gap:0;
    padding:0 20px;
  }
  .brand,.site-nav,.body-col,.wide-col,.list-block,
  .figure-main,.figure-main-cap,.detail-figure,.detail-text{
    grid-column:1;
  }
  .rail{
    grid-column:1;
    padding-top:0;
    margin-bottom:14px;
  }
  .rail .num{display:inline;margin:0 10px 0 0;}
  .rail .label{display:inline;}
  .ticks{display:none;}
  .site-nav ul{justify-content:flex-start;gap:6px 18px;}
  .cols2{columns:1;}
  .figure-main-cap{margin-top:12px;padding-right:0;}
  .detail-figure{max-width:420px;margin-bottom:28px;}
  .patchbay{flex-direction:column;align-items:flex-start;}
}

.foot-col{grid-column:1 / span 12;}
@media (max-width:900px){.foot-col{grid-column:1;}}