:root{--bg:#f4f4f2;--dark:#1c1d20;--acc:#c8431a;--ease:cubic-bezier(.76,0,.24,1);--c:0px}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--dark);overflow-x:clip}
body{overflow-x:clip;font-family:"Helvetica Neue",Arial,sans-serif;color:var(--dark);line-height:1.5;-webkit-font-smoothing:antialiased}
body.is-loading{overflow:hidden}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2{font-weight:500;letter-spacing:-.03em;line-height:1.02}

/* curved edge helper */
.curve{position:absolute;left:-10%;width:120%;height:24vh;background:inherit;transition:height 1s var(--ease)}

/* loader */
.loader{position:fixed;inset:0;z-index:100;background:var(--dark);color:#fff;display:flex;align-items:center;justify-content:center;font-size:clamp(2.5rem,7vw,6rem);transition:transform 1.1s var(--ease)}
.loader i{font-style:normal}
.loader .curve{top:100%;border-radius:0 0 50% 50%/0 0 100% 100%}
.loader.done{transform:translateY(-100%)}
.loader.done .curve{height:0}

/* page transition overlay: rises from bottom */
.trans{position:fixed;inset:0;z-index:90;background:var(--dark);color:#fff;display:flex;align-items:center;justify-content:center;font-size:clamp(2.5rem,7vw,6rem);transform:translateY(100%);pointer-events:none;visibility:hidden}
.trans .curve{bottom:100%;border-radius:50% 50% 0 0/100% 100% 0 0}
.trans.in{visibility:visible;pointer-events:all;transition:transform .9s var(--ease);transform:translateY(0)}
.trans.in .curve{height:0}
.trans.out{visibility:visible;transition:transform .5s var(--ease);transform:translateY(-100%)}
.trans.out .curve{height:0}
.trans.reset{transition:none;transform:translateY(100%)}
.trans.reset .curve{height:24vh}
#transLabel::after{content:"."}

/* header */
.hdr{position:fixed;top:0;left:0;right:0;z-index:80;display:flex;justify-content:space-between;align-items:center;padding:1.5rem 2rem;color:#fff;mix-blend-mode:difference}
.hnav{display:flex;gap:2rem}
.hnav a,.logo{position:relative;padding-left:.9rem}
.hnav a::before{content:"";position:absolute;left:0;top:50%;width:.4rem;height:.4rem;border-radius:50%;background:currentColor;transform:translateY(-50%) scale(0);transition:transform .35s var(--ease)}
.hnav a:hover::before,.hnav a.on::before{transform:translateY(-50%) scale(1)}
.logo{padding-left:0}
.menubtn{display:none;background:none;border:0;color:inherit;font:inherit;cursor:pointer}

.menu{position:fixed;top:0;right:0;bottom:0;width:min(480px,100%);z-index:85;background:var(--dark);color:#fff;padding:7rem 3rem 3rem;transform:translateX(100%);transition:transform .55s var(--ease);display:flex;flex-direction:column;justify-content:space-between}
.menu[hidden]{display:flex;visibility:hidden}
.menu:not(.open){visibility:hidden;transition:transform .55s var(--ease),visibility 0s .55s}
.menu.open{transform:translateX(0);visibility:visible}
.menu .curve{left:auto;right:100%;top:-10%;width:14vh;height:120%;border-radius:100% 0 0 100%/50% 0 0 50%;transition:width .3s ease-out}
.menu.open .curve{width:0}
.menu li{font-size:2.4rem;letter-spacing:-.02em}
.menu a:hover{color:#ff9a76}

/* hero */
.hero{background:#e4e4e1;min-height:100vh;display:flex;flex-direction:column;justify-content:center;gap:2rem;padding:8rem 2rem 4rem}
.hero-k{font-size:.95rem;color:#6b6c70}
.hero h1{font-size:clamp(2.6rem,8vw,7.5rem)}

/* buttons: circle rises on hover */
.btn{position:relative;display:inline-block;overflow:hidden;align-self:flex-start;border:1px solid currentColor;border-radius:999px;padding:1rem 2rem;isolation:isolate}
.btn::before{content:"";position:absolute;left:-25%;top:100%;width:150%;aspect-ratio:1;border-radius:50%;background:var(--acc);z-index:-1;transition:top .6s var(--ease)}
.btn:hover{color:#fff;border-color:var(--acc)}
.btn:hover::before{top:-60%}
.btn.light{color:#fff}

/* marquee */
.marq{background:#e4e4e1;overflow:hidden;white-space:nowrap;font-size:clamp(4rem,14vw,12rem);letter-spacing:-.04em;color:#fff;line-height:1.1;padding:2rem 0}
#marqTrack{display:inline-block;will-change:transform}

/* work */
.work{background:var(--bg);padding:6rem 2rem}
.work h2{font-size:1rem;font-weight:400;color:#6b6c70;margin-bottom:2rem;letter-spacing:0}
.wlist li{border-top:1px solid #cfcfcc}
.wlist li:last-child{border-bottom:1px solid #cfcfcc}
.wlist a{display:flex;justify-content:space-between;align-items:baseline;padding:2.2rem 0;transition:opacity .3s,padding .4s var(--ease)}
.wlist a span{font-size:clamp(2rem,6vw,5rem);letter-spacing:-.03em}
.wlist a small{color:#6b6c70}
.wlist:hover a{opacity:.3}
.wlist li:hover a{opacity:1;padding-left:1rem}
.hoverimg{position:fixed;left:0;top:0;width:320px;height:220px;z-index:60;pointer-events:none;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;opacity:0;transform:translate(-50%,-50%) scale(.6);transition:opacity .3s,scale .3s;will-change:transform}
.hoverimg.show{opacity:1}
.more{margin-top:3rem}

/* about */
.about{background:var(--bg);padding:6rem 2rem 10rem;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start}
.about-img{overflow:hidden;border-radius:6px;aspect-ratio:4/5}
.about-img img{width:100%;height:120%;object-fit:cover;display:block;will-change:transform}
.about h2{font-size:clamp(2rem,5vw,4.5rem);margin-bottom:1.5rem}
.about p{max-width:34rem;font-size:1.15rem;margin-bottom:1rem}
.about .small{color:#6b6c70;font-size:.95rem}

/* main bottom curve over footer */
main{position:relative;z-index:2;background:var(--bg)}
.mainCurve{position:absolute;left:-10%;width:120%;top:100%;height:var(--c);background:var(--bg);border-radius:0 0 50% 50%/0 0 100% 100%}

/* footer */
.contact{position:relative;z-index:1;background:var(--dark);color:#fff;padding:12rem 2rem 2rem;min-height:90vh;display:flex;flex-direction:column}
.contact-in{flex:1;display:flex;flex-direction:column;gap:1.5rem}
.contact h2{font-size:clamp(2.6rem,8vw,7rem)}
.contact p{color:#a9aaae}
.foot{margin-top:auto;display:flex;justify-content:space-between;font-size:.9rem;color:#a9aaae;padding-top:6rem}

@media (max-width:760px){
  .hnav{display:none}.menubtn{display:block}
  .about{grid-template-columns:1fr}
  .wlist a{flex-direction:column;gap:.4rem}
}

/* zakřivený přechod z šedé části (hero + pás) do další sekce, řízený scrollem jako u patičky */
.topwrap{position:relative;z-index:2}
.topCurve{position:absolute;left:-10%;width:120%;top:100%;height:var(--c2,0px);background:#e4e4e1;border-radius:0 0 50% 50%/0 0 100% 100%;pointer-events:none}
.intro{position:relative;z-index:1;min-height:100vh;display:flex;align-items:center}
.intro-in{width:100%;display:grid;grid-template-columns:minmax(0,3fr) auto;gap:3rem;align-items:end}

/* intro: věta + About me */
.intro{background:var(--bg);padding:8rem 2rem}
.intro-t{font-size:clamp(1.8rem,4.2vw,3.8rem);letter-spacing:-.03em;line-height:1.1;max-width:26ch}
@media (max-width:760px){.intro-in{grid-template-columns:1fr;gap:2rem}}

/* logo: text přejede na jméno; magnetický pohyb prvků v liště */
.logo{display:inline-flex;white-space:nowrap;font-weight:600}
.roll{display:inline-grid;overflow:hidden;height:1.5em;vertical-align:bottom}
.roll span{grid-area:1/1;display:block;line-height:1.5;transition:transform .3s cubic-bezier(.2,.8,.2,1)}
.roll span+span{transform:translateX(110%)}
.logo.hov .roll span:first-child,.logo:focus-visible .roll span:first-child{transform:translateX(-110%)}
.logo.hov .roll span+span,.logo:focus-visible .roll span+span{transform:none}
.mag{transition:transform .18s cubic-bezier(.2,.8,.2,1);will-change:transform}
.hnav,.menubtn{transition:opacity .3s,translate .45s var(--ease),scale .45s var(--ease)}
body.scrolled .hnav,body.scrolled .menubtn{opacity:0;translate:40px 0;scale:.5;pointer-events:none}

/* kulatá tečka s menu (po odjetí dolů), barva s kruhem jako u tlačítek */
.fab{position:fixed;top:1rem;right:1.6rem;z-index:88;width:4.2rem;height:4.2rem;border-radius:50%;border:0;background:var(--dark);box-shadow:0 0 0 1px rgba(255,255,255,.18);cursor:pointer;overflow:hidden;isolation:isolate;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.4rem;scale:0;transition:scale .5s var(--ease),transform .18s cubic-bezier(.2,.8,.2,1)}
body.scrolled .fab{scale:1}
.fab::before{content:"";position:absolute;left:-25%;top:100%;width:150%;aspect-ratio:1;border-radius:50%;background:var(--acc);z-index:-1;transition:top .6s var(--ease)}
.fab.hov::before{top:-30%}
.fab i{display:block;width:1.5rem;height:2px;background:#fff;transition:transform .4s var(--ease)}
.fab[aria-expanded=true] i:first-child{transform:translateY(4px) rotate(45deg)}
.fab[aria-expanded=true] i:last-child{transform:translateY(-4px) rotate(-45deg)}
.fab:focus-visible{outline:2px solid var(--acc);outline-offset:3px}

/* vorteile */
.vorteile{background:var(--bg);padding:8rem 2rem 6rem}
.vorteile h2,.faq h2{font-size:1rem;font-weight:400;color:#6b6c70;margin-bottom:2rem;letter-spacing:0}
.vlist li{border-top:1px solid #cfcfcc;display:grid;grid-template-columns:1fr 1fr;gap:2rem;padding:1.8rem 0;align-items:baseline}
.vlist li:last-child{border-bottom:1px solid #cfcfcc}
.vlist h3{font-size:clamp(1.4rem,3vw,2.4rem);font-weight:500;letter-spacing:-.02em;line-height:1.1}
.vlist p{color:#4a4b4f;font-size:1.1rem;max-width:30rem}

/* faq */
.faq{background:var(--bg);padding:2rem 2rem 10rem}
.faq-list details{border-top:1px solid #cfcfcc}
.faq-list details:last-child{border-bottom:1px solid #cfcfcc}
.faq-list summary{cursor:pointer;list-style:none;padding:1.4rem 2.5rem 1.4rem 0;font-size:clamp(1.15rem,2.2vw,1.7rem);letter-spacing:-.01em;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:1.8rem;color:var(--acc);transition:transform .3s var(--ease)}
.faq-list details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-list summary:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.faq-list p{padding:0 2.5rem 1.6rem 0;max-width:42rem;color:#4a4b4f;font-size:1.1rem}
.faq-list p a{text-decoration:underline;color:var(--acc)}
@media (max-width:760px){.vlist li{grid-template-columns:1fr;gap:.5rem}}

/* rechner */
.calc{background:var(--bg);padding:2rem 2rem 8rem}
.calc h2{font-size:1rem;font-weight:400;color:#6b6c70;margin-bottom:1rem;letter-spacing:0}
.calc-h{font-size:clamp(2rem,5vw,4rem);letter-spacing:-.03em;line-height:1.05;margin-bottom:3rem}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start}
.calc-inputs .row{border-top:1px solid #cfcfcc;padding:1.2rem 0}
.calc-inputs .row:last-child{border-bottom:1px solid #cfcfcc}
.calc-inputs label{display:block;color:#4a4b4f;margin-bottom:.6rem}
.calc-inputs .row>div{display:flex;gap:1rem;align-items:center}
.calc-inputs input[type=range]{flex:1;accent-color:var(--acc)}
.calc-inputs input[type=number]{width:7.5rem;font:inherit;padding:.5rem .7rem;border:1px solid #cfcfcc;border-radius:6px;background:#fff}
.calc-inputs input:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.calc-ex{color:#6b6c70;margin-bottom:1.5rem}
.calc-out dl div{display:flex;justify-content:space-between;border-top:1px solid #cfcfcc;padding:.8rem 0}
.calc-out dt{color:#4a4b4f}
.calc-big{margin-top:2rem;font-size:clamp(2rem,5vw,4rem);letter-spacing:-.03em;line-height:1.05}
.calc-big span{color:var(--acc)}
.calc-year{font-size:1.3rem;margin-top:.4rem}
.calc-note{margin-top:1.5rem;color:#6b6c70;font-size:.9rem}
@media (max-width:760px){.calc-grid{grid-template-columns:1fr;gap:2rem}}

/* cta + fragebogen */
.contact .alt{font-size:.95rem}
.contact .alt a{text-decoration:underline}
.fb-page{background:var(--bg)}
.fb-hdr{display:flex;justify-content:space-between;padding:1.5rem 2rem}
.fb{max-width:48rem;margin:0 auto;padding:4rem 2rem 8rem}
.fb h1{font-size:clamp(2.4rem,7vw,5rem);margin-bottom:1.5rem}
.fb-lead{font-size:1.15rem;color:#4a4b4f;margin-bottom:3rem;max-width:36rem}
.fb fieldset{border:0;border-top:1px solid #cfcfcc;padding:1.5rem 0 1rem;margin-bottom:1rem}
.fb legend{font-size:1rem;color:#6b6c70;padding-right:1rem}
.fb-row{margin-bottom:1.2rem}
.fb-row label{display:block;margin-bottom:.4rem;color:#2a2b2e}
.fb-row input[type=text],.fb-row input[type=email],.fb-row input[type=tel],.fb-row input[type=number],.fb-row select,.fb-row textarea{width:100%;font:inherit;padding:.7rem .8rem;border:1px solid #bdbdba;border-radius:6px;background:#fff;color:var(--dark)}
.fb-row textarea{resize:vertical}
.fb-row input:focus-visible,.fb-row select:focus-visible,.fb-row textarea:focus-visible,.fb-check input:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.fb-row.has-err input,.fb-row.has-err select,.fb-row.has-err textarea{border-color:#b3261e}
.fb-msg{color:#b3261e;font-size:.9rem;margin-top:.3rem}
.fb-err{border:1px solid #b3261e;color:#b3261e;border-radius:6px;padding:1rem;margin-bottom:2rem}
.fb-check label{display:flex;gap:.7rem;align-items:flex-start}
.fb-check input{margin-top:.35rem;flex:none}
.fb-check a{text-decoration:underline;color:var(--acc)}
.fb-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.fb-submit{margin-top:1rem;font:inherit;background:none;cursor:pointer;color:var(--dark)}
.fb-note{margin-top:1rem;color:#6b6c70;font-size:.9rem}
.fb h2{font-size:1.3rem;font-weight:500;letter-spacing:0;line-height:1.3;margin:2rem 0 .5rem}
.fb p,.fb li{max-width:40rem;margin-bottom:.8rem}
.fb ul{list-style:disc;padding-left:1.2rem}
.fb a{text-decoration:underline}


/* odkrytí pod zakřiveným okrajem: obsah spodní sekce jede pomaleji; CSS animace vázané na scroll (bez JS, bez zpoždění) */
@keyframes introSlide{from{transform:translateY(-30vh)}to{transform:none}}
@keyframes footSlide{from{transform:translateY(-60vh)}to{transform:none}}
@keyframes curveShrink{from{transform:scaleY(1)}to{transform:scaleY(0)}}
@supports (animation-timeline:view()){
  body{timeline-scope:--tl-intro,--tl-foot}
  .intro{view-timeline:--tl-intro block}
  .contact{view-timeline:--tl-foot block}
  .intro-in{animation:introSlide linear both;animation-timeline:--tl-intro;animation-range:entry 0% entry 100%}
  .contact-in{animation:footSlide linear both;animation-timeline:--tl-foot;animation-range:entry 0% entry 100%}
  .topCurve{height:24vh;transform-origin:top;animation:curveShrink linear both;animation-timeline:--tl-intro;animation-range:entry 0% entry 45%}
  .mainCurve{height:24vh;transform-origin:top;animation:curveShrink linear both;animation-timeline:--tl-foot;animation-range:entry 0% entry 45%}
}

/* přepínač jazyků (menu + vedlejší stránky) */
.langs{display:flex;gap:1.1rem;font-size:1rem;letter-spacing:.04em}
.langs a{opacity:.55;transition:opacity .2s}
.langs a:hover,.langs a.on{opacity:1}
.langs a.on{text-decoration:underline;text-underline-offset:.3em}
.menu .langs{margin-bottom:1rem}
.fb-hdr .langs{font-size:.9rem}