:root{
  --bg:#fbf8f3; --surface:#ffffff; --surface-2:#f3ede4; --text:#2b2622; --muted:#6b625a;
  --line:#e4dbcf; --accent:#8a4b2d; --accent-2:#6f9a8d; --link:#8a4b2d;
  --alert:#b3261e; --alert-text:#ffffff; --quote:#f3ede4; --todo:#fff3c4;
  --radius:12px; --maxw:46rem;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#1b1917; --surface:#24211e; --surface-2:#2d2925; --text:#ece6de; --muted:#a89f95;
    --line:#3a3530; --accent:#e0a07d; --accent-2:#8fbcae; --link:#e9ae8c;
    --alert:#e5534b; --alert-text:#1b1917; --quote:#2d2925; --todo:#4a4120;
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --bg:#1b1917; --surface:#24211e; --surface-2:#2d2925; --text:#ece6de; --muted:#a89f95;
  --line:#3a3530; --accent:#e0a07d; --accent-2:#8fbcae; --link:#e9ae8c;
  --alert:#e5534b; --alert-text:#1b1917; --quote:#2d2925; --todo:#4a4120;
  color-scheme: dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font:1.0625rem/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--link);text-underline-offset:.15em}
a:hover{text-decoration-thickness:2px}
img{max-width:100%;height:auto}
.skip{position:absolute;left:-999px}
.skip:focus{left:1rem;top:1rem;z-index:10;background:var(--surface);padding:.5rem 1rem}

/* hlavička */
.site-header{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 92%,transparent);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{max-width:72rem;margin:0 auto;padding:.6rem 1rem;display:flex;align-items:center;gap:1rem}
.logo{font-weight:800;font-size:1.25rem;letter-spacing:-.01em;color:var(--text);text-decoration:none;white-space:nowrap}
.logo span{color:var(--accent)}
.nav{display:flex;gap:.15rem;flex-wrap:wrap;margin-left:auto;align-items:center}
.nav a{color:var(--text);text-decoration:none;padding:.35rem .6rem;border-radius:8px;font-size:.95rem}
.nav a:hover,.nav a[aria-current]{background:var(--surface-2)}
.btn-alert{background:var(--alert)!important;color:var(--alert-text)!important;font-weight:700}
.exit{border:0;background:var(--surface-2);color:var(--text);border-radius:8px;padding:.35rem .6rem;
  font:inherit;font-size:.85rem;cursor:pointer;white-space:nowrap}
.exit:hover{background:var(--line)}
.menu{display:none;margin-left:auto}
.menu summary{list-style:none;cursor:pointer;padding:.35rem .7rem;border:1px solid var(--line);border-radius:8px}
.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;left:0;right:0;top:100%;background:var(--surface);border-bottom:1px solid var(--line);
  padding:.5rem 1rem 1rem;display:flex;flex-direction:column}
.menu nav a{padding:.6rem .5rem;color:var(--text);text-decoration:none;border-bottom:1px solid var(--line)}
@media (max-width:60rem){ .bar>.nav{display:none} .menu{display:block} }

/* rozložení */
.layout{max-width:72rem;margin:0 auto;padding:1.5rem 1rem 3rem;display:grid;gap:2.5rem;
  grid-template-columns:minmax(0,1fr)}
@media (min-width:60rem){ .layout.has-side{grid-template-columns:15rem minmax(0,1fr)} }
.side{font-size:.93rem}
.side h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 .5rem}
.side ol{list-style:none;padding:0;margin:0;border-left:2px solid var(--line)}
.side li a{display:block;padding:.3rem .8rem;color:var(--text);text-decoration:none;margin-left:-2px;border-left:2px solid transparent}
.side li a:hover{border-left-color:var(--muted)}
.side li a[aria-current]{border-left-color:var(--accent);color:var(--accent);font-weight:600}
@media (max-width:60rem){ .side{order:2;border-top:1px solid var(--line);padding-top:1.5rem} }
main{max-width:var(--maxw);min-width:0}
.layout:not(.has-side) main{margin:0 auto;width:100%}
.crumbs{font-size:.88rem;color:var(--muted);margin-bottom:.75rem}
.crumbs a{color:var(--muted)}

/* typografie obsahu */
.content h1{font-size:clamp(1.8rem,4.5vw,2.5rem);line-height:1.15;letter-spacing:-.02em;margin:.2rem 0 1rem}
.content h2{font-size:1.45rem;line-height:1.25;margin:2.2rem 0 .7rem;padding-top:.3rem}
.content h3{font-size:1.15rem;margin:1.6rem 0 .5rem}
.content p,.content ul,.content ol{margin:.6rem 0 1rem}
.content li{margin:.25rem 0}
.content li>ul,.content li>ol{margin:.25rem 0}
.content hr{border:0;border-top:1px solid var(--line);margin:2rem 0}
.content img{display:block;margin:1.25rem auto 1.75rem;max-height:26rem;width:auto;border-radius:var(--radius);
  box-shadow:0 1px 3px rgb(0 0 0 / .12)}
.content blockquote{margin:1rem 0;padding:.8rem 1.1rem;background:var(--quote);border-left:4px solid var(--accent-2);
  border-radius:0 var(--radius) var(--radius) 0}
.content blockquote p{margin:.3rem 0}
.content table{border-collapse:collapse;width:100%;margin:1rem 0 1.5rem;font-size:.95rem;display:block;overflow-x:auto}
.content th,.content td{border:1px solid var(--line);padding:.5rem .7rem;text-align:left;vertical-align:top}
.content th{background:var(--surface-2)}
.content code{background:var(--surface-2);padding:.1rem .3rem;border-radius:4px;font-size:.9em}
.content h2 a.anchor,.content h3 a.anchor{opacity:0;margin-left:.3rem;text-decoration:none;color:var(--muted)}
.content h2:hover a.anchor,.content h3:hover a.anchor{opacity:1}
.todo{background:var(--todo);border-left:4px solid #c9a227;padding:.5rem .9rem;border-radius:0 8px 8px 0;margin:1rem 0;font-size:.92rem}
.notice{background:var(--surface-2);border:1px dashed var(--muted);border-radius:var(--radius);padding:.8rem 1rem;margin-bottom:1.5rem}

/* rozcestníky */
.cards{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));margin:1.5rem 0}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:1rem 1.1rem;text-decoration:none;color:var(--text);transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--accent);transform:translateY(-1px)}
.card strong{display:block;color:var(--accent);margin-bottom:.25rem}
.card span{font-size:.92rem;color:var(--muted)}

/* patička */
.site-footer{border-top:1px solid var(--line);background:var(--surface-2);font-size:.9rem;color:var(--muted)}
.site-footer .inner{max-width:72rem;margin:0 auto;padding:1.5rem 1rem;display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;justify-content:space-between}
.site-footer a{color:var(--muted)}
@media print{.site-header,.side,.site-footer,.exit{display:none}}