:root{
  --bg:#171514;
  --bg-alt:#201c19;
  --bg-contrast:#ede9e3;
  --text:#e6e1da;
  --muted:#9a9088;
  --text-contrast:#171514;
  --accent:#f08a24;
  --accent2:#2f7a6e;
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.8;
  overflow-x:hidden;
}

.wrap{
  width:100%;
  max-width:1120px;
  margin:0 auto;
  padding:0 24px;
}

.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:24px;
}

/* ---------- axis ---------- */
.axis{position:relative;}
.axis::before{
  content:"";
  position:absolute;
  top:0;bottom:0;left:50%;
  width:1px;
  background:linear-gradient(180deg,rgba(240,138,36,0) 0%,rgba(240,138,36,.55) 18%,rgba(240,138,36,.55) 82%,rgba(240,138,36,0) 100%);
  pointer-events:none;
}

/* ---------- typography ---------- */
h1,h2,h3{font-family:var(--serif);font-weight:400;margin:0;}
h1{font-size:52px;line-height:1.14;letter-spacing:-.01em;}
h2{font-size:28px;line-height:1.3;margin-bottom:18px;}
h3{font-size:19px;line-height:1.4;margin-bottom:8px;}
p{margin:0 0 20px;}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(240,138,36,.4);}
a:hover{border-bottom-color:var(--accent);}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

.caption{
  font-size:12px;
  line-height:1.6;
  color:var(--muted);
  letter-spacing:.04em;
}
.snum{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--accent2);
  margin:0 0 14px;
}
.lead{font-size:18px;}
.muted{color:var(--muted);}

/* ---------- header / nav ---------- */
.site-head{border-bottom:1px solid rgba(230,225,218,.1);}
.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  align-items:center;
  justify-content:center;
  padding-top:22px;
  padding-bottom:22px;
}
.brand{
  font-family:var(--serif);
  font-size:20px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--text);
  border:0;
}
.brand:hover{color:var(--accent);}
.site-nav ul{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:6px 22px;
  margin:0;padding:0;
}
.site-nav a{
  font-size:14px;
  letter-spacing:.06em;
  color:var(--muted);
  border:0;
  padding:2px 0;
}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:var(--accent);border-bottom:1px solid var(--accent);}

/* ---------- sections ---------- */
section{padding:64px 0;}
.s-80{padding:80px 0;}
.s-96{padding:96px 0;}
.alt{background:var(--bg-alt);}
.contrast{background:var(--bg-contrast);color:var(--text-contrast);}
.contrast h1,.contrast h2,.contrast h3{color:var(--text-contrast);}
.contrast .caption{color:#5d554d;}
.contrast .snum{color:#20604f;}
.contrast a{color:#a95a06;border-bottom-color:rgba(169,90,6,.45);}

/* arc separator */
.arc{
  grid-column:5 / span 4;
  height:34px;
  border-top:1px solid rgba(47,122,110,.75);
  border-radius:120px 120px 0 0;
  margin:0 auto;
  width:100%;
}
.arc-block{padding:0;}

/* ---------- hero ---------- */
.hero{padding:88px 0 64px;}
.hero h1{
  grid-column:2 / span 10;
  text-align:center;
  margin-bottom:26px;
  max-width:16ch;
  justify-self:center;
}
.hero .hero-lead{
  grid-column:4 / span 6;
  text-align:center;
  color:var(--text);
}
.hero-sides{margin-top:40px;row-gap:28px;}
.hero-sides .side-l{grid-column:2 / span 3;}
.hero-sides .side-r{grid-column:8 / span 3;}
.hero-sides p{margin:0;font-size:15px;line-height:1.75;color:var(--muted);}
.hero-sides h2{font-size:17px;margin-bottom:8px;}

figure{margin:0;}
.fig-main{
  grid-column:1 / span 12;
  justify-self:center;
  max-width:680px;
  width:100%;
  margin-top:56px;
  text-align:center;
}
.fig-main img,.fig-detail img{
  display:block;
  width:100%;
  height:auto;
}
.fig-main figcaption,.fig-detail figcaption{margin-top:12px;}
.fig-main figcaption{text-align:center;}

/* ---------- symmetric pair ---------- */
.pair{row-gap:32px;}
.pair .col-a{grid-column:1 / span 4;}
.pair .col-b{grid-column:8 / span 4;}
.head-center{grid-column:3 / span 8;text-align:center;margin-bottom:40px;}
.head-center h2{margin-bottom:12px;}
.head-center p{color:var(--muted);}

/* ---------- narrative (asymmetric) ---------- */
.narrative .body{grid-column:1 / span 7;}
.narrative .body.right{grid-column:6 / span 7;}

.center-6{grid-column:4 / span 6;}
.center-8{grid-column:3 / span 8;}

/* ---------- lists ---------- */
ul.check,ol.steps{padding:0;margin:0 0 20px;list-style:none;}
ul.check li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
}
ul.check li::before{
  content:"";
  position:absolute;
  left:0;top:13px;
  width:8px;height:1px;
  background:var(--accent);
}
ol.steps{counter-reset:st;}
ol.steps li{
  position:relative;
  padding-left:38px;
  margin-bottom:14px;
  counter-increment:st;
}
ol.steps li::before{
  content:counter(st,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--accent2);
  line-height:1.9;
}

/* ---------- detail section ---------- */
.detail-row{row-gap:36px;align-items:start;}
.fig-detail{grid-column:1 / span 5;}
.detail-text{grid-column:7 / span 6;}

/* ---------- footer ---------- */
.site-foot{padding:56px 0 64px;background:var(--bg);border-top:0;}
.foot-arc{
  width:33%;
  min-width:200px;
  max-width:340px;
  height:30px;
  margin:0 auto 34px;
  border-top:1px solid rgba(47,122,110,.7);
  border-radius:120px 120px 0 0;
}
.foot-inner{text-align:center;}
.foot-brand{
  font-family:var(--serif);
  font-size:19px;
  letter-spacing:.16em;
  text-transform:uppercase;
  margin-bottom:18px;
}
.foot-nav ul{
  list-style:none;margin:0 0 20px;padding:0;
  display:flex;flex-wrap:wrap;justify-content:center;
  gap:6px 0;
}
.foot-nav li{display:flex;align-items:center;}
.foot-nav li+li::before{
  content:"·";
  color:var(--muted);
  margin:0 12px;
}
.foot-nav a{font-size:14px;color:var(--muted);border:0;}
.foot-nav a:hover{color:var(--accent);}
.foot-mail{margin-bottom:10px;}
.foot-note{font-size:12px;color:var(--muted);max-width:56ch;margin:0 auto;line-height:1.7;}

/* ---------- inner pages ---------- */
.page-head{padding:72px 0 8px;}
.page-head h1{
  grid-column:2 / span 10;
  text-align:center;
  font-size:42px;
  justify-self:center;
  max-width:20ch;
}
.page-head .sub{
  grid-column:4 / span 6;
  text-align:center;
  color:var(--muted);
  margin-top:20px;
}
.prose h2{margin-top:14px;}
.prose h3{margin-top:24px;}

/* ---------- responsive ---------- */
@media (max-width:900px){
  h1{font-size:38px;}
  .page-head h1{font-size:32px;}
  h2{font-size:24px;}
  .hero{padding:56px 0 40px;}
  section{padding:48px 0;}
  .s-80,.s-96{padding:56px 0;}
  .hero h1,.hero .hero-lead,.head-center,.center-6,.center-8,
  .page-head h1,.page-head .sub,
  .hero-sides .side-l,.hero-sides .side-r,
  .pair .col-a,.pair .col-b,
  .narrative .body,.narrative .body.right,
  .fig-main,.fig-detail,.detail-text{grid-column:1 / span 12;}
  .arc{grid-column:1 / span 12;max-width:280px;}
  .axis::before{display:none;}
  .fig-main{margin-top:36px;}
  .hero-sides{margin-top:32px;}
}
@media (max-width:600px){
  body{font-size:16px;}
  .wrap{padding:0 18px;}
  h1{font-size:31px;}
  .page-head h1{font-size:27px;}
  h2{font-size:21px;}
  section{padding:40px 0;}
  .s-80,.s-96{padding:48px 0;}
  .site-head .wrap{flex-direction:column;gap:14px;}
}