:root{
  --ink:#1B2430; --paper:#F7F8F6; --marker:#F5CB3B; --pen:#B8322B;
  --grey:#55606D; --rule:#8A94A0; --blue:#2F5D8A; --sky:#DDE8F3; --card:#FFFFFF;
  --onblue:#F7F8F6;
  --h:"IBM Plex Sans Condensed",sans-serif; --b:"IBM Plex Sans",sans-serif; --m:"IBM Plex Mono",monospace;
}
/* Tmavý režim podle systému. Text na modrých tlačítkách je tmavý kvůli kontrastu (AA). */
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#E9ECEF; --paper:#141A22; --pen:#E2675F; --grey:#A9B2BC; --rule:#5D6773;
    --blue:#7FA9D6; --sky:#1E2E40; --card:#1B232D; --onblue:#141A22;
  }
}
:root[data-theme="dark"]{
  --ink:#E9ECEF; --paper:#141A22; --pen:#E2675F; --grey:#A9B2BC; --rule:#5D6773;
  --blue:#7FA9D6; --sky:#1E2E40; --card:#1B232D; --onblue:#141A22;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--paper);color:var(--ink);font-family:var(--b);font-size:18px;line-height:1.6;overflow-x:hidden}
a{color:inherit}
.wrap{max-width:1000px;margin:0 auto;padding:0 16px}
@media(min-width:700px){.wrap{padding:0 40px}}
.nowrap{white-space:nowrap}

/* Ruční značky: zvýrazňovač, podtržení perem */
.mk{background:linear-gradient(transparent 14%,var(--marker) 14%,var(--marker) 88%,transparent 88%);padding:0 .1em;color:#1B2430;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.ul{position:relative;white-space:nowrap}
.ul svg{position:absolute;left:-2%;bottom:-.22em;width:104%;height:.4em;overflow:visible;pointer-events:none}
.ul path{fill:none;stroke-linecap:round;stroke-width:4px;vector-effect:non-scaling-stroke}
.ul.blue path{stroke:var(--blue)} .ul.red path{stroke:var(--pen)}

.desk{height:6px;background:var(--ink);border:0}

/* Hlavička */
header.top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:24px 0 16px}
header.top a{font-family:var(--h);font-weight:600;font-size:17px;text-decoration:none;color:var(--onblue);background:var(--blue);padding:7px 14px}
header.top a:hover{background:var(--pen)}
header.top a.logo,header.top a.logo:hover{background:none;padding:0;color:var(--ink)}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none}
.logo .t{font-family:var(--h);font-weight:700;font-size:19px;line-height:1.05;border-bottom:4px solid var(--ink);padding-bottom:2px}

/* Úvod */
h1{font-family:var(--h);font-weight:700;font-size:clamp(38px,7vw,64px);line-height:1.08;letter-spacing:-.01em}
.lead{margin-top:30px;font-size:20px;max-width:34em}
.lead + .lead{margin-top:14px}
.photo{position:relative;max-width:270px;width:100%;justify-self:center}
.photo::before{content:"";position:absolute;inset:14px -14px -14px 14px;background:var(--blue)}
.photo .frame{position:relative;aspect-ratio:4/5;background:var(--sky);border:3px solid var(--ink);overflow:hidden}
.photo .frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}

section{padding:72px 0}
h2{font-family:var(--h);font-weight:700;font-size:clamp(30px,4.6vw,42px);line-height:1.12;margin-bottom:14px}
.sub{color:var(--grey);max-width:38em;margin-bottom:40px}
.sub.tight{margin-bottom:12px}

/* Co mě baví: zaškrtávací seznam */
.likes{border-top:1px solid var(--rule)}
.checks{list-style:none;display:grid;gap:0}
@media(min-width:760px){.checks{grid-template-columns:1fr 1fr;column-gap:48px}}
.checks li{display:grid;grid-template-columns:40px 1fr;gap:2px 14px;padding:20px 0;border-top:1px solid var(--rule);align-content:start;grid-auto-rows:min-content}
.checks svg{width:34px;height:30px;grid-row:span 2;margin-top:2px}
.checks svg .box{fill:none;stroke:var(--ink);stroke-width:2}
.checks svg .tick{fill:none;stroke:var(--blue);stroke-width:3.4;stroke-linecap:round;stroke-linejoin:round}
.checks li:nth-child(3n) svg .tick{stroke:var(--pen)}
.checks strong{font-family:var(--h);font-weight:600;font-size:22px;line-height:1.25}
.checks span{color:var(--grey);font-size:17px}

/* Karta prvního dílu */
.post{background:#FFFFFF;color:#1B2430;padding:28px;border:1px solid #D5DAE0;border-top:8px solid #1B2430}
.post .yr{position:relative;display:inline-block;font-family:var(--h);font-weight:700;font-size:96px;line-height:.95}
.post .yr svg{position:absolute;left:-4%;top:40%;width:108%;height:36%;overflow:visible}
.post h3{font-family:var(--h);font-weight:600;font-size:26px;line-height:1.2;margin:14px 0}
.post p{font-size:17px;max-width:none}
.post .src{margin-top:20px;padding-top:12px;border-top:1px solid #8A94A0;font-family:var(--m);font-size:13px;line-height:1.5;color:#55606D}

/* Kontakt */
.contact{border-top:1px solid var(--rule)}
.contact .wrap{display:grid;gap:24px}
@media(min-width:760px){.contact .wrap{grid-template-columns:1fr auto;align-items:center}}
.contact p{max-width:34em}
.btn{display:inline-block;padding:16px 26px;background:var(--blue);color:var(--onblue);font-family:var(--h);font-weight:600;font-size:21px;text-decoration:none}
.btn:hover{background:#1B2430;color:#F7F8F6}
footer{padding:22px 0 40px;color:var(--grey);font-size:14px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* Úvod: název, linka stolu, šipka */
.hero{padding:64px 0 72px}
.hero h1{max-width:15em}
.hero .lead{max-width:36em}
.heroGrid{display:grid;gap:44px}
@media(min-width:820px){.heroGrid{grid-template-columns:1fr 250px;align-items:end;gap:64px}}
h1.brand{font-size:clamp(44px,8.4vw,80px);line-height:1.02;position:relative}
h1.brand .arrow{display:inline-block;width:1.9em;height:.62em;margin-left:.08em;vertical-align:.55em;overflow:visible}
.arrow path{fill:none;stroke:var(--pen);stroke-width:7;stroke-linecap:round;stroke-linejoin:round}
.deskline{height:10px;background:var(--ink);margin:14px 0 30px;max-width:640px}

/* Jak o tom píšu */
.series2{border-top:6px solid var(--ink)}
.series2 .wrap{display:grid;gap:44px}
@media(min-width:840px){.series2 .wrap{grid-template-columns:1fr 1.05fr;align-items:start}}
.series2 p{max-width:32em}
.series2 p + p{margin-top:14px}
.series2 .why{margin-top:26px;padding:4px 0 4px 18px;border-left:4px solid var(--blue);color:var(--grey);font-size:17px}

/* Malý graf v kartě */
.mini{margin-top:18px;display:grid;gap:8px}
.mr{display:grid;grid-template-columns:52px 1fr 52px;align-items:center;gap:10px;font-family:var(--h);font-weight:600;font-size:15px}
.mr b{text-align:right}
.tr{height:12px;background:#DDE8F3}
.tr i{display:block;height:100%;background:#2F5D8A}

.lead.punch{font-family:var(--h);font-weight:600;font-size:clamp(22px,2.6vw,26px);line-height:1.3}
.hero .lead + .lead{margin-top:12px}
.lead.punch.big{font-size:clamp(24px,3vw,32px);line-height:1.25;max-width:20em;margin-top:0}
.story{margin-top:48px;padding-top:28px;border-top:1px solid var(--rule);max-width:38em}
.story .lead{margin:0 0 16px;font-size:19px;line-height:1.65}
.story .lead.turn{font-family:var(--h);font-weight:600;font-size:clamp(24px,3vw,30px);line-height:1.3;margin:30px 0 30px}
.story .lead.turn .ul{white-space:normal}
.hero .lead.punch.close{margin-top:20px;max-width:none;font-size:clamp(22px,2.8vw,30px)}