:root{
  --bg:#f5f4f0;
  --bg-alt:#e2ded4;
  --bg-dark:#14456b;
  --ink:#1c1e20;
  --muted:#6a6d6e;
  --accent:#c2522f;
  --accent2:#1d6b8f;
  --gap:24px;
}

*{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;
}

.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 28px;
}

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

.c4{grid-column:span 4}
.c5{grid-column:span 5}
.c6{grid-column:span 6}
.c7{grid-column:span 7}
.c8{grid-column:span 8}
.c9{grid-column:span 9}
.c12{grid-column:span 12}

/* ---------- typografie ---------- */

h1,h2,h3{margin:0;font-weight:700}

h1{
  font-size:clamp(2.3rem,6vw,4.1rem);
  line-height:1.04;
  letter-spacing:-0.035em;
}

h2{
  font-size:clamp(1.45rem,2.6vw,1.95rem);
  line-height:1.2;
  letter-spacing:-0.015em;
  margin-bottom:18px;
}

h3{
  font-size:1.06rem;
  line-height:1.35;
  margin:26px 0 8px;
}

p{margin:0 0 18px}

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;
}

.cap{
  font-size:13px;
  line-height:1.5;
  color:var(--muted);
  letter-spacing:0.02em;
}

.num{
  font-size:13px;
  font-weight:700;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--accent2);
  display:block;
  margin-bottom:10px;
}

.lead{font-size:1.13rem;line-height:1.65}

ul,ol{margin:0 0 20px;padding-left:0;list-style:none}
ol{counter-reset:st}

ul li{position:relative;padding-left:22px;margin-bottom:9px}
ul li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:9px;height:2px;
  background:var(--accent);
}

ol li{position:relative;padding-left:34px;margin-bottom:9px;counter-increment:st}
ol li::before{
  content:counter(st,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-size:13px;font-weight:700;
  color:var(--accent2);
  letter-spacing:0.06em;
}

/* ---------- rytmus sekcí ---------- */

.sec{padding:72px 0}
.sec-b{padding:88px 0}
.sec-c{padding:104px 0}
.alt{background:var(--bg-alt)}

.rule{margin-bottom:34px}
.rule span{display:block}
.rule .thin{height:1px;background:#c8c3b7}
.rule .thick{height:3px;width:16.6%;min-width:120px;background:var(--accent);margin-top:5px}

/* ---------- hlavička ---------- */

.site-head{
  border-bottom:1px solid #ccc7bb;
  background:var(--bg);
}
.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:14px 26px;
  padding-top:20px;
  padding-bottom:20px;
}
.brand{
  font-weight:700;
  font-size:1.14rem;
  letter-spacing:-0.01em;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{color:var(--accent)}

.site-nav ul{display:flex;flex-wrap:wrap;gap:8px 24px;margin:0}
.site-nav li{padding-left:0;margin:0}
.site-nav li::before{display:none}
.site-nav a{
  color:var(--ink);
  text-decoration:none;
  font-size:15px;
}
.site-nav a:hover,.site-nav a[aria-current="page"]{
  color:var(--accent);
  text-decoration:underline;
  text-underline-offset:5px;
}

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

.hero{padding:78px 0 64px;position:relative}

.hero-inner{position:relative;padding-left:34px}
.hero-inner::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;
  width:1px;background:var(--accent2);
}
.tick-top,.tick-bot{
  position:absolute;left:-5px;
  width:11px;height:1px;background:var(--accent2);
}
.tick-top{top:6px}
.tick-bot{bottom:6px}

.hero h1{grid-column:span 8}
.hero h1 .l2{display:block;padding-left:8.33%}

.hero-dim{
  grid-column:span 9;
  display:flex;
  align-items:center;
  gap:16px;
  margin:34px 0 30px;
}
.hero-dim .arrow{
  flex:1 1 auto;
  height:1px;
  background:var(--accent2);
  position:relative;
}
.hero-dim .arrow::before,
.hero-dim .arrow::after{
  content:"";position:absolute;top:-4px;
  width:1px;height:9px;background:var(--accent2);
}
.hero-dim .arrow::before{left:0}
.hero-dim .arrow::after{right:0}
.hero-dim .label{
  flex:0 0 auto;
  font-size:13px;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--accent2);
}

.hero-intro{grid-column:span 6}

/* ---------- hlavní obrázek ---------- */

.figmain{grid-column:span 7;margin:0}
.figmain img{width:100%;height:auto;display:block}

.figside{
  grid-column:span 4;
  grid-column-start:9;
  align-self:end;
  position:relative;
  padding-left:26px;
}
.figside::before{
  content:"";
  position:absolute;left:0;top:10px;
  width:18px;height:1px;background:var(--accent2);
}

/* ---------- kontrastní sekce ---------- */

.dark{background:var(--bg-dark);color:var(--bg)}
.dark h2,.dark h3{color:var(--bg)}
.dark .num{color:#9ec8dd}
.dark .cap{color:#b9cbd8}
.dark a{color:#f0b7a2}
.dark a:focus-visible{outline-color:#f0b7a2}
.dark ul li::before{background:#e08a68}
.dark ol li::before{color:#9ec8dd}
.dark .rule .thin{background:#3a6a8e}
.dark .rule .thick{background:#e08a68}

.figdetail{grid-column:span 4;grid-column-start:9;margin:0}
.figdetail img{width:100%;height:auto;display:block}
.figdetail figcaption{margin-top:10px}
.dark-text{grid-column:span 6;grid-column-start:2}

/* ---------- výpis / obsah ---------- */

.entry{
  border-top:1px solid #c8c3b7;
  padding:22px 0 4px;
  grid-column:span 9;
}
.entry:last-of-type{border-bottom:1px solid #c8c3b7;margin-bottom:6px}
.entry h3{margin-top:0}

/* ---------- stránka O projektu ---------- */

.about-body{
  grid-column:span 9;
  position:relative;
  padding-left:30px;
  border-left:1px solid var(--accent2);
}
.about-body section{position:relative;padding-bottom:6px}
.about-body section::before{
  content:"";
  position:absolute;
  left:-30px;top:14px;
  width:16px;height:1px;
  background:var(--accent2);
}
.about-body section+section{margin-top:38px}
.about-body h2{margin-bottom:14px}
.about-body p:last-child{margin-bottom:0}

.doc{grid-column:span 9}
.doc h2{margin-top:44px}
.doc h2:first-of-type{margin-top:0}

/* ---------- patička ---------- */

.site-foot{padding:0 0 44px;margin-top:0}
.site-foot .top{height:1px;background:#c8c3b7}
.site-foot .top2{height:3px;width:16.6%;min-width:120px;background:var(--accent);margin-bottom:40px}
.foot-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.foot-brand{grid-column:span 6}
.foot-brand .name{font-size:1.5rem;font-weight:700;letter-spacing:-0.02em;display:block;margin-bottom:8px}
.foot-col{grid-column:span 3}
.foot-col h2{font-size:13px;letter-spacing:0.16em;text-transform:uppercase;color:var(--accent2);margin-bottom:12px;font-weight:700}
.foot-col ul li{padding-left:0;margin-bottom:7px}
.foot-col ul li::before{display:none}
.foot-col a{color:var(--ink)}
.foot-bottom{margin-top:40px;padding-top:16px;border-top:1px solid #c8c3b7}

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

@media (max-width:900px){
  .sec{padding:52px 0}
  .sec-b{padding:56px 0}
  .sec-c{padding:56px 0}
  .hero{padding:48px 0 44px}
  .hero h1,.hero-dim,.hero-intro,
  .figmain,.figside,.figdetail,.dark-text,
  .entry,.about-body,.doc,
  .c4,.c5,.c6,.c7,.c8,.c9{grid-column:1 / -1}
  .figside,.figdetail,.dark-text{grid-column-start:1}
  .hero h1 .l2{padding-left:0}
  .figside{margin-top:14px}
  .figdetail{margin-bottom:26px}
  .foot-brand,.foot-col{grid-column:1 / -1}
  .foot-col{margin-top:26px}
  .rule .thick,.site-foot .top2{width:34%}
}

@media (max-width:600px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .grid,.foot-grid{gap:18px}
  .hero-inner{padding-left:22px}
}