/* Vibe coding s duší – styl webu (v3). Bez externích písem a knihoven (soukromí, rychlost, GDPR). */
:root{
  /* barvy: světlý vzhled (papír, inkoust, limetkové zvýraznění) */
  --bg:#FCFCF9; --surface:#F2F1EB; --card:#FFFFFF; --ink:#121212; --muted:#5F5F57; --line:#DCDACF;
  --lime:#E6FF52; --on-lime:#121212; --link:#121212; --ok:#00A844;
  --f-body:ui-sans-serif,"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  --f-serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --f-mono:ui-monospace,"SF Mono","Cascadia Code",Menlo,Consolas,monospace;
  --measure:64ch; --gutter:max(18px,env(safe-area-inset-left,0px)); --r:14px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#121212; --surface:#1B1B19; --card:#1B1B19; --ink:#F4F3EC; --muted:#A9A99D; --line:#33332F; --link:#E6FF52; --ok:#35D07A;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#121212; --surface:#1B1B19; --card:#1B1B19; --ink:#F4F3EC; --muted:#A9A99D; --line:#33332F; --link:#E6FF52; --ok:#35D07A;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--f-body);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--link);text-underline-offset:.2em;text-decoration-thickness:.08em}
a:hover{text-decoration-thickness:.16em}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px;border-radius:4px;box-shadow:0 0 0 6px var(--lime)}
.skip{position:absolute;left:-999px;top:8px;background:var(--lime);color:var(--on-lime);padding:10px 14px;border-radius:8px;z-index:30}
.skip:focus{left:var(--gutter)}
.wrap{width:100%;max-width:1080px;margin-inline:auto;padding-inline:var(--gutter);padding-right:max(18px,env(safe-area-inset-right,0px))}
.mono{font-family:var(--f-mono);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.hl{background:var(--lime);color:var(--on-lime);padding:.05em .3em;border-radius:6px}

/* hlavička */
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:18px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:650;letter-spacing:-.01em}
.brand svg{width:32px;height:32px;flex:none}
.brand span{white-space:nowrap}
.nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav a{color:var(--muted);text-decoration:none;padding:8px 11px;border-radius:999px;font-size:.93rem}
.nav a:hover{color:var(--ink);background:var(--surface)}
.nav a.cta-nav{background:var(--ink);color:var(--bg);font-weight:600}
.nav a.cta-nav:hover{background:var(--lime);color:var(--on-lime)}
#theme{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;display:grid;place-items:center;margin-left:4px}
#theme:hover{border-color:var(--ink)}
#theme svg{width:18px;height:18px}
#theme .sun{display:none}
:root[data-theme="dark"] #theme .sun{display:block}
:root[data-theme="dark"] #theme .moon{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) #theme .sun{display:block}:root:not([data-theme="light"]) #theme .moon{display:none}}
.cta-nav .cs{display:none}
@media (max-width:760px){.nav a:not(.cta-nav){display:none}}
@media (max-width:480px){.cta-nav .cl{display:none}.cta-nav .cs{display:inline}.brand span{font-size:.95rem}}

/* hrdina */
.hero{padding-block:clamp(36px,7vw,88px) clamp(28px,5vw,56px)}
.hero h1{margin:.28em 0 .3em;font-size:clamp(2.6rem,9.4vw,6.4rem);line-height:.98;letter-spacing:-.045em;font-weight:650;text-wrap:balance}
.hero h1 em{font-family:var(--f-serif);font-weight:400;letter-spacing:-.03em;background:var(--lime);color:var(--on-lime);padding:0 .12em;border-radius:.12em}
.lead{max-width:var(--measure);font-size:clamp(1.1rem,2.4vw,1.35rem);line-height:1.55;color:var(--muted);margin:0 0 1.6rem}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:11px 22px;border-radius:999px;font:inherit;font-weight:600;text-decoration:none;border:1.5px solid var(--ink);color:var(--ink);background:transparent;cursor:pointer}
.btn:hover{background:var(--surface)}
.btn.solid{background:var(--ink);color:var(--bg)}
.btn.solid:hover{background:var(--lime);border-color:var(--lime);color:var(--on-lime)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:1.6rem 0 0;padding:0;list-style:none}
.chips li{font-family:var(--f-mono);font-size:.76rem;letter-spacing:.04em;border:1px solid var(--line);border-radius:999px;padding:5px 12px;color:var(--muted);background:var(--card)}

/* ukázka rozhovoru */
.chat{margin-top:clamp(28px,5vw,48px);max-width:760px;display:grid;gap:12px}
.chat .cap{margin-bottom:4px}
.msg{display:grid;grid-template-columns:76px minmax(0,1fr);gap:14px;align-items:start}
.msg .who{font-family:var(--f-mono);font-size:.74rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);padding-top:13px}
.msg p{margin:0;padding:12px 16px;border-radius:var(--r);background:var(--card);border:1px solid var(--line)}
.msg.ai p{background:var(--lime);color:var(--on-lime);border-color:var(--lime)}
@media (max-width:520px){.msg{grid-template-columns:1fr;gap:4px}.msg .who{padding-top:0}}

/* sekce */
section{padding-block:clamp(34px,6.5vw,76px)}
h2{font-size:clamp(1.7rem,4.4vw,2.7rem);line-height:1.08;letter-spacing:-.03em;margin:.2em 0 .5em;max-width:22ch;text-wrap:balance;font-weight:650}
h2 em,h1 em{font-style:italic}
h3{font-size:1.15rem;margin:0 0 .35em;letter-spacing:-.01em}
.prose{max-width:var(--measure)}
.prose p{margin:0 0 1em}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:16px;margin-top:26px}
.tile{background:var(--surface);border-radius:20px;padding:22px}
.tile p{margin:0;color:var(--muted)}
.principles{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:clamp(20px,4vw,44px);margin-top:28px}
.principles div{border-top:2px solid var(--ink);padding-top:16px}
.principles p{margin:0;color:var(--muted)}
.fine{margin-top:20px;max-width:var(--measure);color:var(--muted);font-size:.95rem}

.steps{list-style:none;counter-reset:s;margin:28px 0 0;padding:0;display:grid;gap:0;max-width:820px}
.steps li{counter-increment:s;display:grid;grid-template-columns:48px minmax(0,1fr);gap:4px 18px;padding:20px 0;border-top:1px solid var(--line)}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps li::before{content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--lime);color:var(--on-lime);font-family:var(--f-mono);font-size:.95rem;grid-row:span 2}
.steps h3{margin:0}
.steps p{margin:0;color:var(--muted)}

.work{display:grid;grid-template-columns:minmax(0,150px) minmax(0,1fr);gap:clamp(20px,4vw,40px);align-items:center;background:var(--surface);border-radius:24px;padding:clamp(20px,4vw,36px)}
.work .ico{width:100%;max-width:150px;aspect-ratio:1;border-radius:26%}
.work h3{font-size:1.4rem}
.work p{margin:.4em 0;color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0;padding:0;list-style:none}
.tags li{font-family:var(--f-mono);font-size:.76rem;letter-spacing:.03em;border:1px solid var(--line);border-radius:999px;padding:4px 11px;color:var(--muted);background:var(--card)}
@media (max-width:560px){.work{grid-template-columns:1fr}.work .ico{max-width:96px}}

.band{background:var(--lime);color:var(--on-lime);border-radius:26px;padding:clamp(24px,5vw,52px);display:flex;flex-wrap:wrap;gap:20px 32px;align-items:center;justify-content:space-between}
.band h2{color:var(--on-lime);margin:0;max-width:20ch}
.band .btn{border-color:var(--on-lime);color:var(--on-lime)}
.band .btn.solid{background:var(--on-lime);color:var(--lime)}
.band .btn.solid:hover{background:#fff;color:var(--on-lime);border-color:#fff}

.contact{background:var(--ink);color:var(--bg);border-radius:26px;padding:clamp(26px,6vw,60px);margin-bottom:clamp(34px,6.5vw,76px)}
.contact h2{color:var(--bg);max-width:18ch}
.contact p{max-width:var(--measure);margin:0 0 1.2em;opacity:.88}
.contact .mono{color:var(--bg);opacity:.7}
.mail{display:inline-block;font-size:clamp(1.25rem,4.6vw,2.4rem);font-weight:650;letter-spacing:-.02em;color:var(--bg);text-decoration-color:var(--lime);word-break:break-word}
.mail:hover{color:var(--lime)}
.contact small{display:block;margin-top:1.2em;opacity:.8}
.contact a:not(.mail){color:var(--bg)}
.who-box{margin-top:26px;border-top:1px solid color-mix(in srgb,var(--bg) 30%,transparent);padding-top:18px;font-size:.95rem;opacity:.92}
.who-box p{margin:.15em 0;opacity:1}

/* podstránky */
.page{padding-block:clamp(24px,5vw,56px) clamp(40px,7vw,80px)}
.page h1{font-size:clamp(2rem,6vw,3.4rem);line-height:1.04;letter-spacing:-.035em;margin:.2em 0 .5em;max-width:18ch;text-wrap:balance;font-weight:650}
.page h2{font-size:1.45rem;margin:1.6em 0 .4em;max-width:none}
.page ul{padding-left:1.2em}
.page li{margin:.3em 0}
code,kbd{font-family:var(--f-mono);font-size:.9em;background:var(--surface);padding:.12em .4em;border-radius:6px}
.note{background:var(--surface);border-radius:var(--r);padding:14px 18px;margin:1.4em 0}

/* produkt */
.price{display:inline-block;font-family:var(--f-mono);font-size:.82rem;font-weight:500;background:var(--lime);color:var(--on-lime);padding:3px 10px;border-radius:999px;vertical-align:middle;margin-left:6px;letter-spacing:.02em}
.price.big{font-size:1.5rem;padding:6px 18px;margin:0}
.pricebox{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin:0 0 1.4rem}
.muted{color:var(--muted)}
.platforms{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:16px;margin-top:20px}
.plat{background:var(--surface);border-radius:20px;padding:20px;display:flex;flex-direction:column;gap:10px}
.plat h3{margin:0}
.plat p{margin:0;color:var(--muted);flex:1}
.plat .state{flex:0;font-family:var(--f-mono);font-size:.74rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink)}
.state.ok::before,.state.wait::before{content:"";display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:8px;background:var(--ok)}
.state.wait::before{background:var(--lime);box-shadow:0 0 0 1.5px var(--ink)}
.plat .btn{align-self:flex-start}
/* formulář poptávky */
.form{display:grid;gap:20px;max-width:760px;margin-top:24px}
.field{display:grid;gap:6px;min-width:0}
.field label,.field legend{font-weight:600;font-size:.97rem}
.field .hint{color:var(--muted);font-size:.9rem;font-weight:400}
.field input[type=text],.field input[type=email],.field input[type=tel],.field textarea{width:100%;font:inherit;color:var(--ink);background:var(--card);border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;min-height:48px}
.field textarea{min-height:170px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--ink);outline:none;box-shadow:0 0 0 4px var(--lime)}
fieldset.field{border:0;padding:0;margin:0}
.choices{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.choice{display:flex;align-items:center;gap:10px;background:var(--card);border:1.5px solid var(--line);border-radius:999px;padding:10px 16px;cursor:pointer;min-height:46px}
.choice input{width:18px;height:18px;accent-color:var(--ink);flex:none}
.choice:has(input:checked){border-color:var(--ink);background:var(--lime);color:var(--on-lime)}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:.95rem}
.consent input{width:20px;height:20px;margin-top:3px;accent-color:var(--ink);flex:none}
.result{background:var(--surface);border-radius:20px;padding:22px;margin-top:10px;display:grid;gap:14px}
.result textarea{width:100%;font:.88rem/1.5 var(--f-mono);color:var(--ink);background:var(--card);border:1.5px solid var(--line);border-radius:12px;padding:12px;min-height:220px}
.status{color:var(--ok);font-weight:600;min-height:1.4em;margin:0}
.error{color:#B3261E;font-weight:600}
:root[data-theme="dark"] .error{color:#FF8A80}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .error{color:#FF8A80}}

footer{border-top:1px solid var(--line);padding-block:28px 40px;color:var(--muted);font-size:.92rem}
footer .row{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between}
footer .op{max-width:44ch}
footer .op p{margin:.1em 0}
footer nav{display:flex;flex-wrap:wrap;gap:6px 18px;align-content:flex-start}
footer a{color:var(--muted)}
footer a:hover{color:var(--ink)}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
@media print{.top .nav,#theme,.skip,.band{display:none}body{background:#fff;color:#000}.contact{background:none;color:#000;border:1px solid #999}.contact h2,.mail,.contact a:not(.mail){color:#000}}