:root{
  --bg:#f2e8df;
  --bg-alt:#e6d6c8;
  --bg-deep:#d9c4b2;
  --bg-dark:#3d2b22;
  --ink:#2a1e18;
  --ink-soft:#7a6a5d;
  --ink-invert:#f2e8df;
  --accent:#a8502f;
  --accent-2:#6b7a4e;
  --serif:Georgia,'Times New Roman',Times,serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  --gap:24px;
  --pad-y:88px;
  --pad-x:52px;
}

*{box-sizing:border-box;}

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

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--serif);
  font-size:18px;
  line-height:1.65;
  overflow-x:hidden;
}

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

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

.wrap{
  max-width:1300px;
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}

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

/* ---------- hero: tri vrstvy na sobe ---------- */

.hero-bar{background:var(--bg);padding-top:20px;padding-bottom:20px;}
.hero-mid{background:var(--bg-alt);padding-top:120px;padding-bottom:44px;}
.hero-low{background:var(--bg-deep);padding-top:56px;padding-bottom:64px;}

.brand{
  font-family:var(--serif);
  font-size:21px;
  letter-spacing:.14em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--ink);
}
.brand:hover{color:var(--accent);}

.topbar{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:14px 28px;
}

nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
}
nav a{
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.09em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--ink-soft);
}
nav a:hover,nav a[aria-current="page"]{color:var(--accent);}
nav a[aria-current="page"]{text-decoration:underline;text-underline-offset:5px;}

h1{
  font-weight:400;
  font-size:clamp(34px,5.6vw,68px);
  line-height:1.08;
  margin:0;
  max-width:15ch;
  letter-spacing:-.01em;
}
.hero-mid .wrap{display:flex;align-items:flex-end;min-height:34vh;}

.eyebrow{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent-2);
  margin:0 0 18px;
}

.lead{grid-column:1 / span 6;margin:0;font-size:20px;}
.lead p{margin:0 0 18px;}
.hero-topics{grid-column:8 / span 5;margin:0;}

/* ---------- sekce se stupnovitym odsazenim ---------- */

section{padding-top:var(--pad-y);padding-bottom:var(--pad-y);}
.tone-a{background:var(--bg);}
.tone-b{background:var(--bg-alt);}
.dark{background:var(--bg-dark);color:var(--ink-invert);}
.dark a{color:#e9b48f;}
.dark a:focus-visible{outline-color:var(--ink-invert);}
.dark .caption{color:#c2ab99;}

.block{grid-column:1 / span 6;}
.step-1 .block{grid-column:2 / span 6;}
.step-2 .block{grid-column:3 / span 6;}
.step-3 .block{grid-column:4 / span 6;}

h2{
  font-weight:400;
  font-size:clamp(26px,3.1vw,38px);
  line-height:1.18;
  margin:0 0 22px;
  letter-spacing:-.005em;
}
h3{
  font-weight:400;
  font-style:italic;
  font-size:23px;
  line-height:1.3;
  margin:38px 0 12px;
}
p{margin:0 0 22px;}
p:last-child{margin-bottom:0;}

.num{
  display:block;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--accent-2);
  margin-bottom:14px;
}
.dark .num{color:#a9b585;}

ul.marked,ol.marked{margin:24px 0;padding:0;list-style:none;}
ul.marked li{position:relative;padding-left:26px;margin-bottom:12px;}
ul.marked li::before{
  content:"";
  position:absolute;
  left:0;top:.62em;
  width:9px;height:9px;
  background:var(--accent);
}
ol.marked{counter-reset:step;}
ol.marked li{position:relative;padding-left:40px;margin-bottom:14px;counter-increment:step;}
ol.marked li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:.15em;
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--accent-2);
}

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

/* ---------- obrazky ---------- */

.figure-main{grid-column:4 / span 9;margin:0;}
.caption{
  font-family:var(--sans);
  font-size:12px;
  line-height:1.6;
  letter-spacing:.03em;
  color:var(--ink-soft);
  margin-top:12px;
  max-width:52ch;
}

.dark .block{grid-column:2 / span 6;}
.figure-detail{grid-column:8 / span 5;margin:0;align-self:start;}

/* ---------- kontakt ---------- */

.contact-line{font-size:21px;}

/* ---------- paticka ---------- */

footer{background:var(--bg-dark);color:var(--ink-invert);padding-top:72px;padding-bottom:56px;}
.footer-name{
  font-size:clamp(52px,13vw,168px);
  line-height:.92;
  letter-spacing:-.02em;
  margin:0 0 56px;
  font-weight:400;
}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  column-gap:var(--gap);
  row-gap:38px;
}
.footer-cols > div > span.rule{
  display:block;
  width:46px;
  height:2px;
  background:var(--accent-2);
  margin-bottom:16px;
}
.footer-cols h2{
  font-family:var(--sans);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:#c2ab99;
  margin:0 0 14px;
}
.footer-cols ul{list-style:none;margin:0;padding:0;}
.footer-cols li{margin-bottom:8px;}
.footer-cols a{color:var(--ink-invert);text-decoration:underline;text-underline-offset:3px;}
.footer-cols a:hover{color:#e9b48f;}
.footer-cols a:focus-visible{outline:2px solid var(--ink-invert);outline-offset:3px;}
.footer-cols p{font-size:16px;margin:0;color:#d8c6b7;}

/* ---------- responzivita ---------- */

@media (max-width:1000px){
  :root{--pad-y:64px;--pad-x:32px;--gap:18px;}
  .lead,.hero-topics,.block,.figure-main,.figure-detail,
  .step-1 .block,.step-2 .block,.step-3 .block,.dark .block{
    grid-column:1 / -1;
  }
  .hero-topics{margin-top:34px;}
  .figure-detail{margin-top:34px;}
  .hero-mid{padding-top:72px;}
  .hero-mid .wrap{min-height:0;}
}

@media (max-width:640px){
  :root{--pad-y:48px;--pad-x:20px;}
  body{font-size:17px;}
  .lead{font-size:18px;}
  .topbar{display:block;}
  nav ul{margin-top:14px;gap:8px 18px;}
  .footer-cols{grid-template-columns:1fr;}
  .footer-name{margin-bottom:40px;}
}