/* Kojda Rekonštrukcie – "Čistý" */
:root{
  --bg:#f5f1ea;--paper:#fffdf9;--ink:#1a1814;--muted:#6f685e;--line:#dcd5c9;
  --accent:#b4472f;--accent-l:#e0866f;--dark-line:#3a362f;--dark-muted:#a39b8f;
  --serif:"Instrument Serif",Georgia,serif;--sans:Manrope,system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{background:var(--bg);color:var(--ink);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ol,ul{list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{max-width:1320px;margin:0 auto;padding:0 32px}
.serif{font-family:var(--serif);font-weight:400;letter-spacing:-.01em}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--paper);padding:10px 16px;z-index:100}
.skip:focus{left:8px}

.tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--muted)}
.tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
.btn{display:inline-flex;align-items:center;gap:10px;background:var(--ink);color:var(--paper);padding:16px 28px;border-radius:6px;font-weight:600;font-size:15px;transition:background .2s,transform .2s}
.btn:hover{background:var(--accent)}
.btn:hover span{transform:translateX(4px)}
.btn span{transition:transform .2s}
.link{font-weight:600;border-bottom:1.5px solid currentColor;padding-bottom:2px;transition:color .2s}
.link:hover{color:var(--accent)}

/* header */
.hdr{position:sticky;top:0;z-index:40;background:rgba(245,241,234,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .3s}
.hdr.scrolled{border-color:var(--line)}
.nav{display:flex;justify-content:space-between;align-items:center;height:76px;gap:24px}
.logo{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.04em;font-size:14px}
.logo i{width:38px;height:38px;border-radius:50%;background:var(--ink);color:var(--paper);display:grid;place-items:center;font-style:normal;font-family:var(--serif);font-size:23px;letter-spacing:0}
.logo em{font-style:normal;font-weight:500;color:var(--muted)}
.nav ul{display:flex;gap:32px;font-size:14px;font-weight:500}
.nav ul a{position:relative;padding:4px 0}
.nav ul a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;background:var(--accent);transition:right .25s}
.nav ul a:hover::after,.nav ul a.active::after{right:0}
.nav-phone{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px}
.dot{width:8px;height:8px;border-radius:50%;background:#3e9b5a;box-shadow:0 0 0 4px rgba(62,155,90,.18)}
.burger{display:none;width:44px;height:44px;position:relative}
.burger span{position:absolute;left:10px;right:10px;height:2px;background:var(--ink);transition:.3s}
.burger span:first-child{top:17px}.burger span:last-child{top:25px}
.burger[aria-expanded="true"] span:first-child{top:21px;transform:rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{top:21px;transform:rotate(-45deg)}

/* hero */
.hero{padding:72px 0 0}
.hero h1{font-size:clamp(58px,10vw,168px);line-height:.92;margin:28px 0 44px}
.hero h1 em{color:var(--accent)}
.hero-grid{display:grid;grid-template-columns:1fr 2fr;gap:32px;align-items:end}
.hero-grid p{font-size:18px;color:var(--muted);max-width:360px;margin-bottom:30px}
.hero-ctas{display:flex;flex-direction:column;align-items:flex-start;gap:18px}
.hero-ctas .link{font-size:14px;color:var(--muted)}
.hero-photo{height:min(66vh,640px);border-radius:4px;overflow:hidden;position:relative}
.hero-photo img{width:100%;height:100%;object-fit:cover;object-position:center 42%;animation:zoom 14s ease-out both}
@keyframes zoom{from{transform:scale(1.08)}to{transform:scale(1)}}
.hero-photo .cap{position:absolute;right:20px;bottom:20px;background:var(--paper);padding:10px 16px;border-radius:4px;font-size:13px;font-weight:600}
.marks{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--line);margin-top:80px}
.marks div{padding:28px 24px;border-left:1px solid var(--line);font-size:14px;color:var(--muted)}
.marks div:first-child{border-left:0;padding-left:0}
.marks b{display:block;font-family:var(--serif);font-size:40px;font-weight:400;color:var(--ink);line-height:1.1}

section{padding:130px 0}
.head{display:grid;grid-template-columns:1fr 2fr;gap:32px;margin-bottom:70px;align-items:start}
.head h2{font-size:clamp(44px,5.6vw,84px);line-height:1}
.head-row{display:flex;justify-content:space-between;align-items:end;gap:24px}

/* services */
.list{border-top:1px solid var(--ink)}
.item{display:grid;grid-template-columns:80px 1.2fr 1.6fr 60px;gap:24px;align-items:center;padding:34px 0;border-bottom:1px solid var(--line);transition:padding .35s}
.item .n{font-size:14px;color:var(--muted);font-weight:600}
.item .thumb{display:none}
.item h3{font-family:var(--serif);font-weight:400;font-size:clamp(32px,3.6vw,52px);line-height:1;transition:color .3s}
.item p{color:var(--muted);max-width:480px}
.item .go{width:52px;height:52px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;transition:.3s}
@media (hover:hover){
  .item:hover{padding-left:20px}
  .item:hover h3{color:var(--accent);font-style:italic}
  .item:hover .go{background:var(--ink);color:var(--paper);border-color:var(--ink);transform:rotate(45deg)}
}
.preview{position:fixed;left:0;top:0;width:300px;height:380px;pointer-events:none;border-radius:4px;overflow:hidden;opacity:0;transform:scale(.85) rotate(-3deg);transition:opacity .3s,transform .3s;z-index:30}
.preview.on{opacity:1;transform:scale(1) rotate(-3deg)}
.preview img{width:100%;height:100%;object-fit:cover}

/* about */
.about{background:var(--paper)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}
.about blockquote{font-size:clamp(32px,3.4vw,50px);line-height:1.12;margin:24px 0 36px}
.about blockquote em{color:var(--accent)}
.about p{color:var(--muted);margin-bottom:16px;max-width:520px}
.sign{margin-top:36px}
.sign b{font-family:var(--serif);font-style:italic;font-size:34px;font-weight:400;display:block;line-height:1.1}
.sign small{color:var(--muted)}
.about-photo{position:relative}
.about-photo img{border-radius:4px;height:620px;width:100%;object-fit:cover}
.about-photo .stamp{position:absolute;left:-40px;top:40px;width:130px;height:130px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;text-align:center;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;line-height:1.3;transform:rotate(-12deg)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ink)}
.steps li{padding:36px 28px 10px 0;border-right:1px solid var(--line);margin-right:28px}
.steps li:last-child{border-right:0;margin-right:0}
.sn{font-size:72px;line-height:1;color:var(--accent);display:block;margin-bottom:22px}
.steps h3{font-size:20px;font-weight:700;margin-bottom:8px}
.steps p{color:var(--muted);font-size:15px}

/* gallery */
.real{padding-bottom:110px;background:var(--paper)}
.arrows{display:flex;gap:10px}
.arr{width:56px;height:56px;border:1px solid var(--line);border-radius:50%;font-size:18px;transition:.2s}
.arr:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.hscroll{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:0 max(32px,calc((100vw - 1320px)/2 + 32px)) 20px;scrollbar-width:none}
.hscroll::-webkit-scrollbar{display:none}
.hscroll figure{flex:0 0 auto;scroll-snap-align:start}
.hscroll button{display:block;border-radius:4px;overflow:hidden;cursor:zoom-in}
.hscroll img{height:520px;width:auto;object-fit:cover;transition:transform .6s}
.hscroll button:hover img{transform:scale(1.04)}
.hscroll figcaption{font-size:13px;color:var(--muted);margin-top:12px;display:flex;justify-content:space-between;gap:20px}

/* faq */
.faq-grid{display:grid;grid-template-columns:1fr 2fr;gap:32px}
.faq-grid h2{font-size:clamp(40px,4.4vw,64px);line-height:1;margin:18px 0 20px}
.faq-lead{color:var(--muted)}
.faq-lead a{color:var(--ink);font-weight:700;border-bottom:1.5px solid}
.faq{border-top:1px solid var(--ink)}
details{border-bottom:1px solid var(--line)}
summary{list-style:none;cursor:pointer;padding:26px 0;font-family:var(--serif);font-size:clamp(24px,2.4vw,32px);line-height:1.15;display:flex;justify-content:space-between;gap:24px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--sans);font-size:22px;width:40px;height:40px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;flex-shrink:0;transition:.25s}
details[open] summary::after{transform:rotate(45deg);background:var(--ink);color:var(--paper);border-color:var(--ink)}
summary:hover{color:var(--accent)}
details p{color:var(--muted);padding:0 64px 26px 0;max-width:680px}

/* contact */
.contact{background:var(--ink);color:var(--paper)}
.contact .tag{color:var(--dark-muted)}
.c-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px}
.contact h2{font-size:clamp(52px,7vw,110px);line-height:.95;margin:24px 0 40px}
.contact h2 em{color:var(--accent-l)}
.big-phone{font-size:clamp(38px,4vw,58px);display:block;border-bottom:1px solid var(--dark-line);padding-bottom:18px;margin-bottom:18px;transition:color .2s}
.big-phone:hover{color:var(--accent-l)}
.c-meta{color:var(--dark-muted);display:grid;gap:6px}
.c-meta a:hover{color:var(--paper)}
.map{margin-top:36px;height:220px;border-radius:4px;overflow:hidden;border:1px solid var(--dark-line);background:linear-gradient(135deg,#24211c,#2c2822)}
.map button{width:100%;height:100%;display:grid;place-content:center;gap:6px;text-align:center;color:var(--paper);font-weight:600}
.map button span{font-size:28px;color:var(--accent-l)}
.map button small{color:var(--dark-muted);font-weight:500}
.map iframe{width:100%;height:100%;border:0;filter:grayscale(.6) contrast(1.05)}
.contact form{display:grid;gap:24px;align-content:start;padding-top:20px}
.contact label>span,.contact legend{display:block;font-size:13px;color:var(--dark-muted);margin-bottom:4px}
.contact input:not([type=checkbox]),.contact textarea{background:transparent;border:0;border-bottom:1px solid var(--dark-line);color:var(--paper);font:inherit;font-size:18px;padding:10px 0;width:100%;border-radius:0;transition:border-color .2s}
.contact textarea{resize:vertical}
.contact input:focus,.contact textarea:focus{outline:none;border-color:var(--accent-l)}
.contact input.invalid{border-color:#e26a5a}
fieldset{border:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chips label{cursor:pointer}
.chips input{position:absolute;opacity:0;pointer-events:none}
.chips span{display:inline-block;padding:9px 16px;border:1px solid var(--dark-line);border-radius:999px;font-size:14px;color:var(--dark-muted);transition:.2s}
.chips label:hover span{border-color:var(--dark-muted);color:var(--paper)}
.chips input:checked+span{background:var(--paper);border-color:var(--paper);color:var(--ink)}
.chips input:focus-visible+span{outline:2px solid var(--accent-l);outline-offset:2px}
.contact .btn{background:var(--paper);color:var(--ink);justify-self:start}
.contact .btn:hover{background:var(--accent-l);color:#fff}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.contact .btn:disabled{opacity:.6;cursor:wait}
.form-err{color:#f0907f;font-size:14px;min-height:0}
.form-err:empty{display:none}
.form-note{font-size:12px;color:#7d766b}
.form-ok{padding:40px 0}
.form-ok h3{font-family:var(--serif);font-weight:400;font-size:44px;margin-bottom:12px}
.form-ok p{color:var(--dark-muted)}

/* footer */
.ftr{background:var(--ink);color:#7d766b;font-size:13px;padding:0 0 40px}
.f-top{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:40px 0;border-top:1px solid var(--dark-line);flex-wrap:wrap}
.ftr .logo{color:var(--paper)}.ftr .logo i{background:var(--paper);color:var(--ink)}
.f-top ul{display:flex;gap:28px;font-size:14px;color:var(--dark-muted)}
.f-top a:hover{color:var(--paper)}
.f-bot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--dark-line)}

/* mobile call button */
.fab{display:none;position:fixed;right:18px;bottom:18px;z-index:45;width:60px;height:60px;border-radius:50%;background:var(--accent);color:#fff;font-size:24px;place-items:center;box-shadow:0 12px 30px -8px rgba(180,71,47,.7);transition:transform .3s,opacity .3s}
.fab.hide{transform:scale(.6);opacity:0;pointer-events:none}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(20,18,15,.94);display:grid;grid-template-columns:80px 1fr 80px;align-items:center}
.lightbox[hidden]{display:none}
.lightbox figure{display:grid;justify-items:center;gap:14px;padding:40px 0}
.lightbox img{max-height:82vh;max-width:100%;border-radius:4px}
.lightbox figcaption{color:var(--dark-muted);font-size:14px}
.lb-arr,.lb-x{color:var(--paper);width:56px;height:56px;border-radius:50%;border:1px solid var(--dark-line);font-size:18px;justify-self:center;transition:.2s}
.lb-arr:hover,.lb-x:hover{background:var(--paper);color:var(--ink)}
.lb-x{position:absolute;top:20px;right:20px}

/* reveal */
.up{opacity:0;transform:translateY(30px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.up.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .up{opacity:1;transform:none;transition:none}
  .hero-photo img{animation:none}
}

/* responsive */
@media (max-width:1080px){
  .nav ul{gap:22px}
}
@media (max-width:960px){
  .wrap{padding:0 18px}
  /* backdrop-filter would make the header the containing block of the fixed menu */
  .hdr{background:var(--bg);backdrop-filter:none;-webkit-backdrop-filter:none}
  .nav nav{position:fixed;inset:76px 0 0;background:var(--bg);transform:translateX(100%);transition:transform .35s cubic-bezier(.2,.7,.2,1);padding:24px 18px}
  .nav nav.open{transform:none}
  .nav ul{flex-direction:column;gap:0}
  .nav ul a{display:block;font-family:var(--serif);font-size:40px;padding:10px 0;border-bottom:1px solid var(--line)}
  .nav ul a::after{display:none}
  .nav-phone{display:none}
  .burger{display:block}
  .hero{padding-top:44px}
  .hero h1{margin:22px 0 28px}
  .hero-grid,.head,.about-grid,.c-grid,.faq-grid{grid-template-columns:1fr}
  .head{gap:12px;margin-bottom:40px}
  .hero-photo{height:440px}
  .marks{grid-template-columns:1fr 1fr;margin-top:48px}
  .marks div{padding:20px 12px}
  .marks div:nth-child(3){border-left:0;padding-left:0}
  .marks div:nth-child(n+3){border-top:1px solid var(--line)}
  .marks b{font-size:30px}
  .item{grid-template-columns:72px 1fr 40px;gap:4px 16px;padding:22px 0}
  .item .n{display:none}
  .item .thumb{display:block;grid-row:1/3;width:72px;height:72px;object-fit:cover;border-radius:4px}
  .item h3{font-size:30px}
  .item p{grid-column:2/3;font-size:14px}
  .item .go{grid-row:1/3;grid-column:3;width:40px;height:40px}
  .preview{display:none}
  .about-grid{gap:48px}
  .about-photo img{height:420px}
  .about-photo .stamp{left:auto;right:12px;top:-36px;width:100px;height:100px;font-size:10px}
  .steps{grid-template-columns:1fr 1fr}
  .steps li{margin-right:0;padding:28px 16px 24px 0;border-right:0;border-bottom:1px solid var(--line)}
  .steps li:nth-child(odd){padding-right:16px;border-right:1px solid var(--line);margin-right:16px}
  .sn{font-size:52px;margin-bottom:12px}
  .arrows{display:none}
  .hscroll{padding:0 18px 16px;gap:12px}
  .hscroll img{height:360px}
  details p{padding-right:0}
  .c-grid{gap:48px}
  section{padding:90px 0}
  .fab{display:grid}
  .lightbox{grid-template-columns:1fr;align-content:center}
  .lb-arr{position:absolute;bottom:24px}
  .lb-prev{left:calc(50% - 68px)}.lb-next{right:calc(50% - 68px)}
  .lightbox img{max-height:72vh}
}
@media (max-width:420px){
  .logo em{display:none}
}