/* Kravintosde — canvas-field: tisk modrou a červenou barvou */

:root{
  --bg:#f4f2ed;
  --bg-alt:#e6e3dc;
  --bg-dark:#16151a;
  --ink:#16151a;
  --ink-soft:#6d6a63;
  --ink-inv:#f4f2ed;
  --blue:#1f3fa8;
  --red:#c0452e;
  --mono:ui-monospace,Consolas,"Liberation Mono",monospace;
  --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(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
}

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

a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}

a:focus-visible,
:focus-visible{
  outline:3px solid var(--blue);
  outline-offset:3px;
}

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

.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 32px;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  column-gap:24px;
}

.c4{grid-column:1 / span 4}
.c5{grid-column:1 / span 5}
.c6{grid-column:1 / span 6}
.c7{grid-column:1 / span 7}
.c12{grid-column:1 / -1}
.c5-right{grid-column:7 / span 5}
.c5-end{grid-column:8 / span 5}
.c6-right{grid-column:6 / span 6}
.c6-mid{grid-column:3 / span 6}
.c7-shift{grid-column:4 / span 7}
.c5-shift{grid-column:2 / span 5}

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

h1,h2,h3,.mono{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.09em;
  font-weight:600;
}

h1{
  font-size:clamp(29px,4.5vw,50px);
  line-height:1.2;
  margin:0;
  letter-spacing:.04em;
}

h2{
  font-size:clamp(19px,2.1vw,25px);
  line-height:1.32;
  margin:0 0 18px;
}

h3{
  font-size:15px;
  line-height:1.45;
  letter-spacing:.12em;
  margin:32px 0 10px;
}

p{margin:0 0 20px;max-width:70ch}
p:last-child{margin-bottom:0}

.lead{font-size:19px;line-height:1.7}

.meta{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:12px;
  color:var(--ink-soft);
}

.num{
  font-family:var(--mono);
  letter-spacing:.16em;
  font-size:12px;
  color:var(--red);
  display:block;
  margin-bottom:12px;
}

/* ---------- dělicí plochy ---------- */

.rule{height:3px;border:0;margin:0;background:var(--blue)}
.rule-red{background:var(--red)}
.r2{grid-column:1 / span 2}
.r3{grid-column:1 / span 3}
.r4{grid-column:3 / span 4}
.r5{grid-column:5 / span 5}
.r3b{grid-column:8 / span 3}

/* ---------- hlavička ---------- */

.site-head{padding:26px 0 0}
.site-head .wrap{row-gap:14px;align-items:baseline}

.brand{
  grid-column:1 / span 4;
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.24em;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{color:var(--blue)}

.site-nav{grid-column:5 / span 8;justify-self:end}
.site-nav ul{
  list-style:none;margin:0;padding:0;
  display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:flex-end;
}
.site-nav a{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.11em;
  font-size:12px;
  color:var(--ink);
  text-decoration:none;
  padding:4px 0;
  border-bottom:2px solid transparent;
}
.site-nav a:hover,
.site-nav a[aria-current="page"]{border-bottom-color:var(--blue);color:var(--blue)}

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

.hero{padding:72px 0 0}
.hero-title{grid-column:1 / span 7}
.hero-bar{
  grid-column:11 / span 1;
  align-self:start;
  height:96px;
  width:14px;
  background:var(--red);
}
.hero-lead{grid-column:1 / span 5;margin-top:40px}
.hero-rule{margin-top:56px}

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

.band{padding:64px 0}
.band-wide{padding:112px 0}
.band-alt{background:var(--bg-alt)}
.band-dark{background:var(--bg-dark);color:var(--ink-inv)}
.band-dark h2,.band-dark h3{color:var(--ink-inv)}
.band-dark .meta{color:#b8b3a9}
.band-dark a{color:#a8bcff}
.band-dark .rule{background:var(--ink-inv)}
.band-dark .rule-red{background:var(--red)}

.stack + .stack{margin-top:56px}

/* ---------- seznamy ---------- */

ul.plain{list-style:none;margin:0 0 20px;padding:0}
ul.plain li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  max-width:66ch;
}
ul.plain li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:12px;height:3px;
  background:var(--blue);
}
.band-dark ul.plain li::before{background:var(--red)}

ol.steps{margin:0 0 20px;padding-left:24px}
ol.steps li{margin-bottom:10px;max-width:66ch}

dl.terms{margin:0}
dl.terms dt{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:13px;
  margin-top:24px;
}
dl.terms dd{margin:6px 0 0;max-width:66ch}

/* ---------- o projektu ---------- */

.about-body{grid-column:3 / span 6}
.about-marks{grid-column:1 / span 1;display:flex;flex-direction:column;gap:170px;padding-top:10px}
.about-marks span{display:block;width:100%;height:10px}
.about-marks span:nth-child(1){background:var(--blue)}
.about-marks span:nth-child(2){background:var(--red)}
.about-marks span:nth-child(3){background:var(--blue)}

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

.contact-box{grid-column:2 / span 5}
.contact-side{grid-column:8 / span 4;align-self:start}

/* ---------- patička ---------- */

.site-foot{background:var(--bg-alt);padding:56px 0 64px}
.site-foot .wrap{row-gap:22px}
.foot-bar{grid-column:1 / span 4;height:6px;background:var(--blue)}
.foot-name{
  grid-column:1 / span 5;
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.22em;
  font-size:20px;
  font-weight:600;
}
.foot-nav{grid-column:1 / span 7}
.foot-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px 20px}
.foot-nav a{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.11em;
  font-size:12px;
  color:var(--ink);
  text-decoration:none;
  border-bottom:2px solid transparent;
}
.foot-nav a:hover{border-bottom-color:var(--blue);color:var(--blue)}
.foot-mail{grid-column:9 / span 4;justify-self:end;text-align:right}
.foot-note{grid-column:1 / span 8;color:var(--ink-soft);font-size:14px;line-height:1.7}

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

@media (max-width:1000px){
  .hero-title{grid-column:1 / span 9}
  .hero-lead{grid-column:1 / span 7}
  .c5-right{grid-column:6 / span 7}
  .c6-mid,.about-body{grid-column:2 / span 9}
  .c7-shift{grid-column:2 / span 9}
  .contact-box{grid-column:1 / span 7}
  .contact-side{grid-column:8 / span 5}
  .c5-end{grid-column:7 / span 6}
  .about-marks{gap:130px}
}

@media (max-width:760px){
  body{font-size:16px}
  .wrap{padding:0 20px;column-gap:16px}
  .wrap > *{grid-column:1 / -1}
  .site-head{padding:20px 0 0}
  .site-nav{justify-self:start}
  .site-nav ul{justify-content:flex-start;gap:6px 18px}
  .hero{padding:40px 0 0}
  .hero-bar{width:120px;height:8px;margin-bottom:26px;order:-1}
  .hero-lead{margin-top:28px}
  .hero-rule{margin-top:36px}
  .band{padding:40px 0}
  .band-wide{padding:64px 0}
  .stack + .stack{margin-top:36px}
  .rule{max-width:220px}
  .about-marks{flex-direction:row;gap:14px;padding-top:0;margin-bottom:24px}
  .about-marks span{width:56px;height:8px}
  .foot-mail{justify-self:start;text-align:left}
  .foot-bar{max-width:200px}
  p{max-width:none}
}