/* ============================================================
   RASTR — obkladačské studio
   Archetyp: Geometrická přesnost (Swiss / Monochrome+grid)
   Paleta: off-white paper + ink + terakota akcent
   Zero-dependency: CSS + vanilla JS
   ============================================================ */

:root{
  --paper:#f3efe7;
  --paper-2:#e9e3d7;
  --paper-3:#ded6c7;
  --ink:#181512;
  --ink-2:#443f39;
  --muted:#6f695f;
  --line:rgba(24,21,18,.14);
  --line-2:rgba(24,21,18,.08);
  --terra:#b4502e;
  --terra-d:#8e3c20;
  --terra-2:#c9683f;
  --green:#2c4438;

  --ff:'Archivo',system-ui,-apple-system,sans-serif;
  --ff-num:'Fraunces',Georgia,serif;

  --e-precise:cubic-bezier(.7,0,.2,1);   /* přesné, řemeslné */
  --e-soft:cubic-bezier(.25,.7,.25,1);
  --gutter:clamp(20px,5vw,80px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;scroll-behavior:smooth;overflow-x:hidden}
body{
  font-family:var(--ff);background:var(--paper);color:var(--ink);
  line-height:1.5;overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--terra);color:#fff}

.skip-link{position:absolute;left:-999px;top:0;z-index:2000;background:var(--ink);color:var(--paper);padding:12px 18px}
.skip-link:focus{left:12px;top:12px}

/* --- serif numerals utility --- */
.num{font-family:var(--ff-num);font-weight:300;font-variant-numeric:lining-nums;letter-spacing:-.01em}

/* --- micro label --- */
.eyebrow{
  font-size:.68rem;font-weight:600;text-transform:uppercase;letter-spacing:.28em;
  color:var(--terra-d);display:inline-flex;align-items:center;gap:12px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--terra-d);display:inline-block}

/* ============================================================
   CUSTOM CURSOR (čtvercový — motiv dlaždice)
   ============================================================ */
@media (hover:hover) and (pointer:fine){
  .cur-dot,.cur-box{position:fixed;top:0;left:0;z-index:9000;pointer-events:none;
    transform:translate(-50%,-50%);will-change:transform}
  .cur-dot{width:5px;height:5px;background:var(--ink);}
  .cur-box{width:30px;height:30px;border:1.4px solid var(--ink);opacity:.55;
    transition:width .3s var(--e-precise),height .3s var(--e-precise),
      border-color .3s var(--e-precise),opacity .3s var(--e-precise),background .3s var(--e-precise)}
  body.cur-active .cur-box{width:54px;height:54px;border-color:var(--terra);opacity:1}
  body.cur-active .cur-dot{background:var(--terra)}
  body.cur-hide .cur-dot,body.cur-hide .cur-box{opacity:0}
}
.cur-dot,.cur-box{display:none!important}

/* ============================================================
   LOADER
   ============================================================ */
#loader{position:fixed;inset:0;z-index:8000;background:var(--paper);
  display:flex;align-items:flex-end;justify-content:space-between;
  padding:var(--gutter);transition:opacity .6s var(--e-precise),visibility .6s}
#loader.done{opacity:0;visibility:hidden}
.load-word{font-size:clamp(2.2rem,7vw,5rem);font-weight:700;letter-spacing:-.03em;text-transform:uppercase;line-height:1}
.load-count{font-family:var(--ff-num);font-weight:300;font-size:clamp(3rem,10vw,8rem);line-height:.85;color:var(--terra-d)}
.load-bar{position:absolute;bottom:0;left:0;height:3px;background:var(--terra);width:0%}

/* ============================================================
   NAV
   ============================================================ */
#nav{position:fixed;top:0;left:0;right:0;z-index:600;
  display:flex;align-items:center;justify-content:space-between;
  height:74px;padding:0 var(--gutter);
  transition:background .4s var(--e-precise),box-shadow .4s var(--e-precise)}
#nav.scrolled{background:rgba(243,239,231,.9);backdrop-filter:blur(10px);
  box-shadow:0 1px 0 var(--line)}
.logo{display:flex;align-items:baseline;gap:11px;font-weight:800;font-size:1.35rem;letter-spacing:.02em}
.logo b{font-weight:800}
.logo span{font-weight:500;font-size:.64rem;letter-spacing:.24em;text-transform:uppercase;color:var(--muted)}
.logo .mark{width:16px;height:16px;display:inline-grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px}
.logo .mark i{background:var(--ink)}
.logo .mark i:nth-child(2){background:var(--terra)}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{font-size:.78rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;
  position:relative;color:var(--ink-2);transition:color .3s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1.5px;background:var(--terra);transition:width .35s var(--e-precise)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-cta{display:inline-flex;align-items:center;gap:9px;background:var(--ink);color:var(--paper);
  padding:11px 20px;font-size:.74rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  border:none;transition:background .3s var(--e-precise),color .3s}
.nav-cta:hover{background:var(--terra-d)}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:8px}
.nav-burger i{width:24px;height:2px;background:var(--ink);display:block}

/* ============================================================
   HERO
   ============================================================ */
.hero{min-height:100svh;display:grid;grid-template-columns:1.05fr .95fr;
  align-items:stretch;padding-top:74px}
.hero-left{display:flex;flex-direction:column;justify-content:center;
  padding:40px var(--gutter) 60px;position:relative}
.hero-year{position:absolute;top:24px;left:var(--gutter);font-size:.7rem;letter-spacing:.26em;text-transform:uppercase;color:var(--muted)}
.hero h1{font-size:clamp(2.6rem,6.4vw,6.1rem);font-weight:700;line-height:.98;letter-spacing:-.035em;
  text-transform:uppercase;margin:22px 0 0}
.hero h1 em{font-family:var(--ff-num);font-style:italic;font-weight:300;text-transform:none;letter-spacing:-.01em;color:var(--terra-d)}
.hero-sub{margin-top:30px;max-width:440px;font-size:1.06rem;color:var(--ink-2);line-height:1.65;font-weight:400}
.hero-actions{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap;align-items:center}
.btn{display:inline-flex;align-items:center;gap:11px;padding:15px 26px;font-size:.8rem;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;border:1.4px solid var(--ink);background:var(--ink);color:var(--paper);
  transition:background .35s var(--e-precise),color .35s var(--e-precise),border-color .35s}
.btn .arw{width:16px;height:16px;position:relative}
.btn .arw::after{content:"";position:absolute;inset:0;background:currentColor;
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'><path d='M5 12h14M13 6l6 6-6 6'/></svg>") center/contain no-repeat;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'><path d='M5 12h14M13 6l6 6-6 6'/></svg>") center/contain no-repeat}
.btn:hover{background:var(--terra-d);border-color:var(--terra-d)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.hero-meta{margin-top:52px;display:flex;gap:40px;flex-wrap:wrap}
.hero-meta div{display:flex;flex-direction:column;gap:2px}
.hero-meta .num{font-size:2.1rem;color:var(--ink)}
.hero-meta small{font-size:.72rem;letter-spacing:.06em;color:var(--muted);text-transform:uppercase}

/* --- HERO MOSAIC (signature: assembling tile grid) --- */
.hero-right{position:relative;overflow:hidden;background:var(--paper-2)}
.mosaic{position:absolute;inset:clamp(18px,2.4vw,40px);
  display:grid;grid-template-columns:repeat(7,1fr);grid-template-rows:repeat(5,1fr);
  gap:clamp(3px,.5vw,7px)}
.m-tile{position:relative;overflow:hidden;background:var(--paper-3);
  opacity:0;transform:scale(.34);will-change:transform,opacity}
.m-tile.in{opacity:1;transform:scale(1);
  transition:opacity .7s var(--e-precise),transform .85s var(--e-precise)}
.m-tile.solid-t{background:var(--terra)}
.m-tile.solid-i{background:var(--ink)}
.m-tile.solid-g{background:var(--green)}
.m-tile.img{background-image:url("themes/obkladac/img/hero.jpg");background-repeat:no-repeat;
  background-size:700% 500%}
.m-tile .plus{position:absolute;inset:0;display:none}
.m-tile.solid-t .plus,.m-tile.solid-i .plus{display:block}
.m-tile .plus::before,.m-tile .plus::after{content:"";position:absolute;background:rgba(255,255,255,.5)}
.m-tile .plus::before{left:50%;top:34%;bottom:34%;width:1.4px;transform:translateX(-50%)}
.m-tile .plus::after{top:50%;left:34%;right:34%;height:1.4px;transform:translateY(-50%)}
.hero-caption{position:absolute;bottom:clamp(18px,2.4vw,40px);left:clamp(18px,2.4vw,40px);right:clamp(18px,2.4vw,40px);
  z-index:3;display:flex;justify-content:space-between;align-items:flex-end;
  font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--paper);
  mix-blend-mode:difference;pointer-events:none}

/* ============================================================
   REVEAL
   ============================================================ */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s var(--e-precise),transform .8s var(--e-precise)}
.reveal.in{opacity:1;transform:none}
.reveal-d1{transition-delay:.08s}
.reveal-d2{transition-delay:.16s}
.reveal-d3{transition-delay:.24s}

/* ============================================================
   SECTION SHELL
   ============================================================ */
section{position:relative}
.wrap{padding:clamp(80px,11vh,150px) var(--gutter)}
.sec-head{display:grid;grid-template-columns:auto 1fr;gap:clamp(24px,5vw,90px);align-items:end;
  margin-bottom:clamp(46px,7vh,84px)}
.sec-head .idx{font-family:var(--ff-num);font-weight:300;font-size:clamp(2.4rem,5vw,4rem);color:var(--terra-d);line-height:.8}
.sec-head h2{font-size:clamp(1.9rem,4.4vw,3.6rem);font-weight:700;letter-spacing:-.03em;text-transform:uppercase;line-height:1}
.sec-head p{margin-top:14px;max-width:520px;color:var(--ink-2);font-size:1.02rem;line-height:1.6}

/* ============================================================
   SLUŽBY
   ============================================================ */
#sluzby{background:var(--paper)}
.svc-list{border-top:1px solid var(--line)}
.svc-row{display:grid;grid-template-columns:auto 1.1fr 2fr auto;gap:clamp(16px,4vw,60px);
  align-items:center;padding:clamp(26px,4vh,42px) 0;border-bottom:1px solid var(--line);
  position:relative;transition:padding .5s var(--e-precise)}
.svc-row .s-num{font-family:var(--ff-num);font-weight:300;font-size:1.5rem;color:var(--muted);transition:color .4s}
.svc-row .s-name{font-size:clamp(1.5rem,3vw,2.4rem);font-weight:600;letter-spacing:-.02em;transition:transform .5s var(--e-precise),color .4s}
.svc-row .s-desc{color:var(--ink-2);font-size:.98rem;line-height:1.55;max-width:460px}
.svc-row .s-go{width:44px;height:44px;border:1.4px solid var(--line);display:grid;place-items:center;
  transition:background .4s var(--e-precise),border-color .4s}
.svc-row .s-go i{width:16px;height:16px;background:var(--ink);
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'><path d='M7 17L17 7M9 7h8v8'/></svg>") center/contain no-repeat;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'><path d='M7 17L17 7M9 7h8v8'/></svg>") center/contain no-repeat;transition:background .4s}
.svc-row .s-thumb{position:absolute;top:50%;right:14%;width:220px;height:150px;transform:translateY(-50%) scale(.9);
  opacity:0;pointer-events:none;overflow:hidden;z-index:4;box-shadow:0 20px 50px rgba(24,21,18,.28);
  transition:opacity .45s var(--e-precise),transform .55s var(--e-precise)}
.svc-row .s-thumb img{width:100%;height:100%;object-fit:cover}
@media (hover:hover){
  .svc-row:hover .s-name{transform:translateX(14px);color:var(--terra-d)}
  .svc-row:hover .s-num{color:var(--terra-d)}
  .svc-row:hover .s-go{background:var(--terra-d);border-color:var(--terra-d)}
  .svc-row:hover .s-go i{background:#fff}
  .svc-row:hover .s-thumb{opacity:1;transform:translateY(-50%) scale(1)}
}

/* ============================================================
   FORMÁTY
   ============================================================ */
#formaty{background:var(--ink);color:var(--paper)}
#formaty .sec-head h2{color:var(--paper)}
#formaty .sec-head p{color:rgba(243,239,231,.72)}
#formaty .sec-head .idx{color:var(--terra-2)}
.fmt-grid{display:flex;flex-wrap:wrap;align-items:flex-end;gap:clamp(20px,4vw,54px);
  border-top:1px solid rgba(243,239,231,.16);padding-top:clamp(40px,6vh,64px)}
.fmt{display:flex;flex-direction:column;gap:16px}
.fmt-shape{border:1.6px solid rgba(243,239,231,.5);background:rgba(243,239,231,.04);position:relative;
  transition:background .45s var(--e-precise),border-color .45s var(--e-precise)}
.fmt-shape::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(243,239,231,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(243,239,231,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;transition:opacity .4s}
.fmt:hover .fmt-shape{background:var(--terra);border-color:var(--terra)}
.fmt:hover .fmt-shape::after{opacity:0}
.fmt-mosaic{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:2px;padding:3px}
.fmt-mosaic span{background:rgba(243,239,231,.5);transition:background .4s}
.fmt:hover .fmt-mosaic span{background:#fff}
.fmt-info{display:flex;flex-direction:column;gap:2px}
.fmt-info .dim{font-family:var(--ff-num);font-weight:300;font-size:1.5rem;color:var(--paper)}
.fmt-info .nm{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(243,239,231,.6)}
.fmt-note{margin-top:clamp(40px,6vh,64px);max-width:560px;color:rgba(243,239,231,.7);font-size:1rem;line-height:1.65}
.fmt-note b{color:var(--paper);font-weight:600}

/* ============================================================
   REALIZACE
   ============================================================ */
#realizace{background:var(--paper-2)}
.real-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(4px,.7vw,10px)}
.real{position:relative;overflow:hidden;background:var(--paper-3)}
.real img{width:100%;height:100%;object-fit:cover;filter:grayscale(.7) contrast(1.02);
  transform:scale(1.04);transition:filter .7s var(--e-precise),transform 1.1s var(--e-precise)}
.real::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(24,21,18,.72),transparent 55%);
  opacity:0;transition:opacity .5s var(--e-precise)}
.real .cap{position:absolute;left:18px;right:18px;bottom:16px;z-index:3;color:var(--paper);
  transform:translateY(12px);opacity:0;transition:transform .55s var(--e-precise),opacity .55s var(--e-precise)}
.real .cap .t{font-weight:600;font-size:1.02rem;letter-spacing:-.01em}
.real .cap .m{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--terra-2);margin-top:3px}
@media (hover:hover){
  .real:hover img{filter:grayscale(0) contrast(1.03);transform:scale(1)}
  .real:hover::after{opacity:1}
  .real:hover .cap{transform:none;opacity:1}
}
.real.tall{grid-row:span 2}
.real.wide{grid-column:span 2}
.r-big{grid-column:span 2;grid-row:span 2}

/* ============================================================
   POPTÁVKA
   ============================================================ */
#poptavka{background:var(--paper)}
.pop-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(30px,6vw,90px);align-items:start}
.pop-left h3{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;letter-spacing:-.02em;line-height:1.05;text-transform:uppercase}
.pop-left h3 em{font-family:var(--ff-num);font-style:italic;font-weight:300;text-transform:none;color:var(--terra-d)}
.pop-left p{margin-top:20px;color:var(--ink-2);font-size:1.02rem;line-height:1.65;max-width:400px}
.pop-steps{margin-top:36px;display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.pop-step{display:grid;grid-template-columns:auto 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);align-items:baseline}
.pop-step .num{font-size:1.1rem;color:var(--terra-d)}
.pop-step b{font-weight:600;font-size:1rem}
.pop-step span{display:block;color:var(--muted);font-size:.88rem;margin-top:2px}
.form{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.field{background:var(--paper);padding:16px 18px;display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
.field input,.field select,.field textarea{border:none;background:transparent;font-family:inherit;
  font-size:1rem;color:var(--ink);padding:2px 0;outline:none;width:100%}
.field textarea{resize:vertical;min-height:80px}
.field.focus label{color:var(--terra-d)}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.chip{border:1.3px solid var(--line);background:transparent;padding:8px 14px;font-size:.82rem;font-weight:500;
  transition:.3s var(--e-precise)}
.chip.on,.chip:hover{border-color:var(--terra-d);background:var(--terra-d);color:#fff}
.form-foot{grid-column:1/-1;background:var(--paper);padding:18px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.form-foot small{color:var(--muted);font-size:.78rem;max-width:280px}
.form-note{grid-column:1/-1;background:var(--green);color:var(--paper);padding:20px;display:none;font-size:.98rem}
.form-note.show{display:block}

/* ============================================================
   PATIČKA
   ============================================================ */
footer{background:var(--ink);color:var(--paper)}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding:clamp(64px,9vh,110px) var(--gutter) clamp(40px,5vh,60px)}
.foot-brand .logo b{color:var(--paper)}
.foot-brand .logo .mark i{background:var(--paper)}
.foot-brand .logo .mark i:nth-child(2){background:var(--terra)}
.foot-brand p{margin-top:22px;max-width:340px;color:rgba(243,239,231,.66);line-height:1.65;font-size:1rem}
.foot-col h4{font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--terra-2);margin-bottom:18px}
.foot-col a,.foot-col p{display:block;color:rgba(243,239,231,.82);font-size:.98rem;margin-bottom:11px;transition:color .3s}
.foot-col a:hover{color:var(--terra-2)}
.foot-bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding:22px var(--gutter);border-top:1px solid rgba(243,239,231,.15);
  font-size:.76rem;letter-spacing:.06em;color:rgba(243,239,231,.55);text-transform:uppercase}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1080px){
  .real-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-burger{display:flex}
  .hero{grid-template-columns:1fr}
  .hero-right{min-height:56vh;order:2}
  .hero-left{order:1;padding-top:96px}
  .mosaic{grid-template-columns:repeat(7,1fr);grid-template-rows:repeat(4,1fr)}
  .svc-row{grid-template-columns:auto 1fr;gap:14px 20px}
  .svc-row .s-desc{grid-column:1/-1;max-width:none}
  .svc-row .s-go{display:none}
  .svc-row .s-thumb{display:none}
  .pop-grid{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr 1fr}
  .real-grid{grid-template-columns:repeat(2,1fr)}
  .r-big{grid-column:span 2}
}
@media (max-width:520px){
  .form{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr}
  .hero-meta{gap:26px}
  .sec-head{grid-template-columns:1fr;gap:14px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal,.m-tile{opacity:1!important;transform:none!important}
}