:root{
  --bg:#1a1d15;
  --bg-alt:#22261c;
  --bg-light:#efeade;
  --ink:#e8e4d6;
  --ink-muted:#909486;
  --ink-dark:#1a1d15;
  --accent:#c07c3a;
  --accent2:#8fa26a;
  --serif:Georgia,'Times New Roman',serif;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --gap:24px;
}

*{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:1200px;
  margin:0 auto;
  padding:0 24px;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:var(--gap);
}

.text{grid-column:4 / span 6;}
.wide{grid-column:3 / span 8;}
.list-col{grid-column:4 / span 7;}
.full{grid-column:1 / -1;}

/* ---------- rhythm ---------- */

section{padding-block:64px;}
.band{background:var(--bg-alt);}
.band-light{background:var(--bg-light);color:var(--ink-dark);}
.band-light a{color:#8a541f;}
.band-light .label{color:#5d6a45;}
.band-light .caption{color:#5f6355;}

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

h1,h2,h3{font-family:var(--serif);font-weight:400;letter-spacing:0.005em;}

h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.18;
  margin:0 0 22px;
}

h2{
  font-size:clamp(24px,2.7vw,32px);
  line-height:1.26;
  margin:0 0 26px;
}

h3{
  font-style:italic;
  font-size:21px;
  line-height:1.35;
  margin:44px 0 12px;
}

p{margin:0 0 22px;max-width:68ch;}

.label{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:0.18em;
  line-height:1.6;
  color:var(--accent2);
  margin:0 0 20px;
}

.caption{
  font-size:12px;
  letter-spacing:0.06em;
  color:var(--ink-muted);
  margin:18px 0 0;
  max-width:none;
}

.lede{font-size:21px;line-height:1.62;}

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

.hero{
  min-height:92vh;
  display:flex;
  flex-direction:column;
  padding-block:34px 92px;
}

.hero .grid{width:100%;}

.hero-head{margin-bottom:auto;}

.hero-title{
  grid-column:3 / span 8;
  text-align:center;
  padding-top:18vh;
}

.hero-title p{
  margin:0 auto;
  color:var(--ink-muted);
  max-width:56ch;
}

/* ---------- navigation ---------- */

.nav{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:8px 38px;
  font-size:12px;
  letter-spacing:0.16em;
  padding:0;
  margin:0;
  list-style:none;
}

.nav a{
  color:var(--ink-muted);
  text-decoration:none;
  padding:4px 0;
  display:inline-block;
}

.nav a:hover{color:var(--ink);}

.nav a[aria-current="page"]{color:var(--ink);border-bottom:1px solid var(--accent);}

.sitename{
  font-family:var(--serif);
  font-size:15px;
  letter-spacing:0.22em;
  text-align:center;
  margin:0 0 26px;
}

.sitename a{color:var(--ink);text-decoration:none;}

/* ---------- main image ---------- */

.figure-main{
  grid-column:3 / span 8;
  margin:96px 0;
  text-align:center;
}

.figure-main img{width:100%;}

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

ul,ol{padding-left:20px;margin:0 0 22px;}

li{margin-bottom:12px;max-width:64ch;}

li::marker{color:var(--accent);}

.band-light li::marker{color:#8a541f;}

.steps{list-style:none;padding-left:0;counter-reset:step;}

.steps li{
  position:relative;
  padding-left:44px;
  counter-increment:step;
  margin-bottom:20px;
}

.steps li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;
  top:2px;
  font-size:12px;
  letter-spacing:0.1em;
  color:var(--accent2);
}

/* ---------- detail block (light band) ---------- */

.detail{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:var(--gap);
  row-gap:32px;
  align-items:start;
}

.detail-figure{grid-column:2 / span 4;margin:0;}

.detail-figure img{width:100%;}

.detail-body{grid-column:7 / span 5;}

/* ---------- about ---------- */

.about-block{grid-column:4 / span 6;}

.about-block h2{margin-top:0;}

.rule{
  text-align:center;
  color:var(--accent2);
  margin:72px 0;
  font-size:14px;
  letter-spacing:0.4em;
}

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

.site-footer{
  background:var(--bg-alt);
  padding:112px 24px;
  text-align:center;
}

.footer-inner{max-width:640px;margin:0 auto;}

.footer-inner .sitename{margin-bottom:34px;}

.footer-mail{margin:34px 0 30px;font-size:16px;}

.footer-note{
  font-size:12px;
  line-height:1.9;
  color:var(--ink-muted);
  letter-spacing:0.02em;
  margin:0;
  max-width:none;
}

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

@media (max-width:900px){
  .text,.wide,.list-col,.hero-title,.figure-main,.about-block{grid-column:1 / -1;}
  .detail-figure{grid-column:1 / -1;}
  .detail-body{grid-column:1 / -1;}
  .figure-main{margin:64px 0;}
  section{padding-block:36px;}
  .hero{min-height:auto;padding-block:28px 64px;}
  .hero-title{padding-top:14vh;}
  .nav{gap:6px 22px;}
  .rule{margin:52px 0;}
  .site-footer{padding:80px 24px;}
}

@media (max-width:520px){
  body{font-size:16px;}
  p,li{max-width:none;}
  .lede{font-size:19px;}
}