/* ==========================================================================
   K&D — home.css
   Styly hlavní stránky (index.html): hero se zoom parallaxem, O nás,
   Specializace, Služby, Portfolio banner, Proces (timeline), CTA a patička.
   ========================================================================== */

/* ═══════════════ HERO = ZOOM PARALLAX ═══════════════ */
.hero{position:relative;height:300vh}
.hero-sticky{position:sticky;top:0;height:100svh;overflow:hidden;background:var(--ink)}
.zoom-layer{position:absolute;inset:0;z-index:1}
.zoom-item{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;will-change:transform}
.zoom-frame{position:relative;width:25vw;height:25vh;overflow:hidden}
.zoom-frame img{width:100%;height:100%;object-fit:cover}
.zoom-item:nth-child(2) .zoom-frame{top:-30vh;left:5vw;height:30vh;width:35vw}
.zoom-item:nth-child(3) .zoom-frame{top:-10vh;left:-25vw;height:45vh;width:20vw}
.zoom-item:nth-child(4) .zoom-frame{left:27.5vw;height:25vh;width:25vw}
.zoom-item:nth-child(5) .zoom-frame{top:27.5vh;left:5vw;height:25vh;width:20vw}
.zoom-item:nth-child(6) .zoom-frame{top:27.5vh;left:-22.5vw;height:25vh;width:30vw}
.zoom-item:nth-child(7) .zoom-frame{top:22.5vh;left:25vw;height:15vh;width:15vw}
.hero-shade{position:absolute;inset-inline:0;bottom:0;height:60%;z-index:2;pointer-events:none;background:linear-gradient(to top,var(--ink) 12%,rgba(11,11,11,.45) 55%,transparent)}
.hero-content{position:absolute;inset-inline:0;bottom:0;z-index:3;padding:0 var(--page) clamp(4rem,9vh,6.5rem)}
.hero-content h1{font-size:clamp(3.75rem,12.5vw,12.5rem);line-height:.93;max-width:12ch}
.hero-content .mask{display:block;overflow:hidden;padding-bottom:.06em}
.hero-content .mask>span{display:block;transform:translateY(115%);animation:linein 1.05s var(--ease) forwards}
.hero-content .mask:nth-of-type(2)>span{animation-delay:.12s}
@keyframes linein{to{transform:none}}
.soft{opacity:0;transform:translateY(16px);animation:softin .9s var(--ease) forwards}
@keyframes softin{to{opacity:1;transform:none}}
.hero-sub{max-width:54ch;margin-top:2.2rem;font-size:clamp(1.3rem,2.3vw,2rem);line-height:1.5;animation-delay:.5s}
.hero-ctas{display:flex;flex-direction:column;gap:1rem;margin-top:2.5rem;align-items:flex-start;animation-delay:.65s}
@media(min-width:640px){.hero-ctas{flex-direction:row;align-items:center}}
.scroll-ind{
  position:absolute;bottom:2rem;right:var(--page);z-index:3;
  display:none;flex-direction:column;align-items:center;gap:.75rem;
  opacity:0;animation:softin .9s var(--ease) 1.4s forwards;
}
@media(min-width:768px){.scroll-ind{display:flex}}
.scroll-ind .meta{writing-mode:vertical-rl}
.scroll-pill{width:1.5rem;height:2.5rem;border:1px solid rgba(255,255,255,.25);border-radius:999px;display:flex;justify-content:center;padding-top:.4rem}
.scroll-dot{width:.375rem;height:.375rem;border-radius:50%;background:var(--paper);animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{0%{transform:translateY(0);opacity:1}70%{transform:translateY(10px);opacity:0}100%{transform:translateY(0);opacity:0}}
@media(prefers-reduced-motion:reduce){
  .hero{height:100svh}
  .zoom-item{transform:none!important}
  .hero-fade{opacity:1!important}
}

/* ═══════════════ O NÁS ═══════════════ */
.about-grid{display:grid;grid-template-columns:1fr;gap:var(--space-block)}
.about h2{max-width:14ch}
.about .lede{max-width:56ch;margin-top:2rem}
.about-body{max-width:56ch;margin-top:1.4rem;color:var(--muted);line-height:1.7}
.slide-group .mask{display:block;overflow:hidden;padding-bottom:.06em}
.slide-group .mask>span{display:block;transform:translateY(115%);transition:transform 1s var(--ease)}
.slide-group .mask:nth-child(2)>span{transition-delay:.1s}
.slide-group .mask:nth-child(3)>span{transition-delay:.2s}
.slide-group.in .mask>span{transform:none}
.about-duo{display:grid;grid-template-columns:1fr;gap:1rem;margin-top:2.75rem}
@media(min-width:640px){.about-duo{grid-template-columns:1fr 1fr}}
.duo-card{
  border:1px solid var(--hairline);border-radius:1rem;background:var(--card);
  padding:1.7rem 1.8rem;transition:border-color .5s;
}
@media(hover:hover){.duo-card:hover{border-color:rgba(255,255,255,.2)}}
.duo-card h3{font-family:var(--font-display);font-size:1.7rem;letter-spacing:-.01em}
.duo-card p{margin-top:.7rem;font-size:.9rem;line-height:1.65;color:var(--muted)}
.about-claim{
  font-family:var(--font-display);font-size:clamp(1.5rem,2.7vw,2.4rem);
  line-height:1.3;letter-spacing:-.01em;margin-top:2.75rem;max-width:26ch;
}
.about-photo{
  position:relative;overflow:hidden;border-radius:1.5rem;
  border:1px solid var(--hairline);aspect-ratio:4/5;background:var(--card);
}
.about-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.blur-in{opacity:0;filter:blur(22px);transform:scale(1.05);transition:opacity 1s var(--ease),filter 1.2s var(--ease),transform 1.2s var(--ease)}
.blur-in.in{opacity:1;filter:blur(0);transform:none}
@media(min-width:1024px){
  .about-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);align-items:center}
}

/* ═══════════════ SPECIALIZACE (expandující galerie) ═══════════════ */
.spec-title{max-width:18ch}
.spec-gallery{display:flex;flex-direction:column;gap:1.25rem;margin-top:var(--space-block)}
.spec-card{
  position:relative;overflow:hidden;border-radius:1.5rem;
  border:1px solid var(--hairline);background:var(--card);
  aspect-ratio:4/3;
}
.spec-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.spec-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,11,11,.85),rgba(11,11,11,.25) 55%,transparent);
}
.spec-txt{position:absolute;inset-inline:0;bottom:0;z-index:1;padding:1.5rem}
.spec-txt h3{font-family:var(--font-display);font-size:clamp(1.35rem,1.9vw,2rem);letter-spacing:-.01em;color:var(--paper)}
.spec-txt p{margin-top:.45rem;font-size:.875rem;line-height:1.5;color:rgba(255,255,255,.72);max-width:40ch}
@media(min-width:900px) and (hover:hover) and (pointer:fine){
  .spec-gallery{flex-direction:row;gap:.9rem;height:clamp(26rem,62vh,34rem)}
  .spec-card{flex:1;aspect-ratio:auto;transition:flex .65s var(--ease)}
  .spec-card:hover{flex:2.6}
  .spec-txt{padding:2rem;min-width:22rem}
  .spec-txt p{
    opacity:0;transform:translateY(10px);
    transition:opacity .5s var(--ease) .18s,transform .5s var(--ease) .18s;
  }
  .spec-card:hover .spec-txt p{opacity:1;transform:none}
}

/* ═══════════════ SLUŽBY (vertikální taby s autoplay) ═══════════════ */
.services{background:rgba(20,20,20,.4);border-block:1px solid var(--hairline)}
.vtabs{display:grid;grid-template-columns:1fr;gap:2.5rem;margin-top:var(--space-block)}
.vtab-stage-wrap{order:-1}
.vtab-list{display:flex;flex-direction:column}
.vtab{
  position:relative;display:block;width:100%;text-align:left;
  padding:1.5rem 0 1.5rem 1.4rem;border-top:1px solid var(--hairline);
  color:var(--muted);transition:color .5s var(--ease);
}
.vtab:first-child{border-top:0}
.vtab.active{color:var(--paper)}
@media(hover:hover){.vtab:hover{color:var(--paper)}}
.vtab-bar{position:absolute;left:0;top:0;bottom:0;width:2px;background:rgba(255,255,255,.1);overflow:hidden}
.vtab-bar i{
  position:absolute;inset:0;display:block;background:var(--paper);
  transform:scaleY(0);transform-origin:top;
}
.vtab.active .vtab-bar i.run{transform:scaleY(1);transition:transform var(--vtab-dur,5s) linear}
.vtab-title{font-family:var(--font-display);font-size:clamp(1.6rem,2.6vw,2.4rem);letter-spacing:-.01em;line-height:1.1;display:block}
.vtab-desc{overflow:hidden;max-height:0;opacity:0;transition:max-height .55s var(--ease),opacity .4s var(--ease)}
.vtab.active .vtab-desc{max-height:14rem;opacity:1}
.vtab-desc p{padding-top:.75rem;font-size:.9rem;line-height:1.65;color:var(--muted);max-width:46ch}
.vtab-stage{
  position:relative;aspect-ratio:4/5;overflow:hidden;border-radius:1.5rem;
  border:1px solid var(--hairline);background:var(--card);cursor:pointer;
}
@media(min-width:640px){.vtab-stage{aspect-ratio:4/3}}
.vtab-slide{
  position:absolute;inset:0;opacity:0;transform:translateY(100%);
  transition:transform .8s var(--ease),opacity .5s var(--ease);
  will-change:transform;pointer-events:none;
}
.vtab-slide.active{opacity:1;transform:none;z-index:1}
.vtab-slide img{width:100%;height:100%;object-fit:cover}
.vtab-slide::after{content:"";position:absolute;inset-inline:0;bottom:0;height:35%;background:linear-gradient(to top,rgba(11,11,11,.45),transparent)}
.vtab-navs{position:absolute;bottom:1.25rem;right:1.25rem;z-index:2;display:flex;gap:.6rem}
.vtab-btn{
  width:2.9rem;height:2.9rem;border-radius:50%;
  background:rgba(11,11,11,.6);border:1px solid rgba(255,255,255,.25);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;color:var(--paper);
  transition:background-color .3s,transform .15s;
}
.vtab-btn:active{transform:scale(.9)}
@media(hover:hover){.vtab-btn:hover{background:var(--paper);color:var(--ink)}}
.vtab-btn svg{width:18px;height:18px}
@media(min-width:1024px){
  .vtabs{grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:calc(var(--gutter)*2);align-items:start}
  .vtab-stage-wrap{order:2}
  .vtab-stage{aspect-ratio:16/11}
  .vtab{padding-block:1.9rem}
}
@media(prefers-reduced-motion:reduce){
  .vtab-bar{display:none}
  .vtab-desc,.vtab-slide{transition:none}
}

/* ═══════════════ PORTFOLIO (full-bleed banner) ═══════════════ */
.pf-banner{
  position:relative;overflow:hidden;
  height:min(88svh,52rem);
  border-block:1px solid var(--hairline);
}
.pf-media{position:absolute;inset:0}
.pf-media img{width:100%;height:100%;object-fit:cover}
.pf-banner::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 90% 75% at 50% 50%,rgba(11,11,11,.35) 0%,rgba(11,11,11,.62) 100%);
}
.pf-center{
  position:absolute;inset:0;z-index:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding-inline:var(--page);
}
.pf-center .meta{color:rgba(255,255,255,.75)}
.pf-center h2{margin-top:1.5rem;text-shadow:0 2px 30px rgba(0,0,0,.4)}
.pf-center .lede{margin-top:1.25rem;max-width:40ch;color:rgba(255,255,255,.85)}
.pf-link{
  margin-top:2.25rem;font-size:.95rem;color:var(--paper);
  padding-bottom:.25rem;
}
.fade-in{opacity:0;transition:opacity 1.3s var(--ease)}
.fade-in.in{opacity:1}

/* ═══════════════ PROCES (timeline s rostoucím paprskem) ═══════════════ */
.proces-head{max-width:46rem}
.proces-head h2{margin-top:1.5rem}
.proces-head .lede{margin-top:1.5rem}
.tl{--lx:.9rem;--pad:3.4rem;--dot:1.5rem;position:relative;margin-top:var(--space-block);list-style:none}
.tl-line{
  position:absolute;top:0;bottom:0;left:var(--lx);width:2px;overflow:hidden;
  background:linear-gradient(to bottom,transparent,rgba(255,255,255,.12) 8%,rgba(255,255,255,.12) 92%,transparent);
}
.tl-beam{
  position:absolute;inset-inline:0;top:0;height:0;opacity:0;
  background:linear-gradient(to top,var(--paper) 0%,rgba(245,245,245,.5) 55%,transparent 100%);
  border-radius:999px;
}
.tl-item{position:relative;padding:3.2rem 0 0 var(--pad)}
.tl-item:first-child{padding-top:.5rem}
.tl-head{position:relative}
.tl-dot{
  position:absolute;top:.15rem;
  left:calc(var(--lx) - var(--pad) - var(--dot)/2 + 1px);
  width:var(--dot);height:var(--dot);border-radius:50%;
  background:var(--ink);display:flex;align-items:center;justify-content:center;
}
.tl-dot i{width:.8rem;height:.8rem;border-radius:50%;background:var(--card);border:1px solid rgba(255,255,255,.3)}
.tl-head .meta{display:block;margin-bottom:.4rem}
.tl-head h3{font-family:var(--font-display);font-size:clamp(1.7rem,3.2vw,2.9rem);letter-spacing:-.015em;line-height:1.08;color:var(--paper)}
.tl-body p{margin-top:.9rem;max-width:54ch;font-size:.95rem;line-height:1.7;color:var(--muted)}
@media(min-width:900px){
  .tl{--lx:1.1rem;--pad:4.5rem;--dot:2rem}
  .tl-dot i{width:.95rem;height:.95rem}
  .tl-item{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:3rem;padding-top:5.5rem}
  .tl-item:first-child{padding-top:1rem}
  .tl-head{position:sticky;top:8.5rem;align-self:start}
  .tl-body p{margin-top:.4rem;font-size:1rem}
}
@media(prefers-reduced-motion:reduce){
  .tl-beam{height:100%!important;opacity:1!important}
}

/* ═══════════════ CTA FINÁLE ═══════════════ */
.cta-inner{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center}
.cta-inner .sec-label{margin-bottom:2rem}
.cta-inner h2{font-size:clamp(2.5rem,6.5vw,6rem);max-width:14ch}
.cta-inner .lede{max-width:46ch;margin-top:1.5rem}
.cta-inner .btn-lg{margin-top:3rem}
.cta-mail{margin-top:1.5rem;font-size:.875rem;color:var(--muted)}
.cta-mail a{color:var(--paper)}
.cta-mail .link{text-transform:none;letter-spacing:.02em;font-size:.875rem}

/* ═══════════════ FOOTER ═══════════════ */
footer{border-top:1px solid var(--hairline)}
.foot-grid{display:grid;gap:3rem;padding-block:4rem}
.foot-logo{font-family:var(--font-display);font-size:2.5rem;letter-spacing:-.01em}
.foot-about{margin-top:1rem;max-width:36ch;font-size:.875rem;line-height:1.6;color:var(--muted)}
.foot-col .meta{margin-bottom:1.25rem}
.foot-col ul{display:flex;flex-direction:column;gap:.65rem}
.foot-col a{font-size:.875rem;color:var(--muted);transition:color .3s}
.foot-col a.mail{color:var(--paper)}
@media(hover:hover){.foot-col a:hover{color:var(--paper)}}
.foot-label{margin-bottom:.35rem}
.foot-label .meta{letter-spacing:.1em}
.foot-label+.foot-label,.foot-col .mail+.foot-label{margin-top:1.1rem}
.foot-city{margin-top:.65rem;font-size:.875rem;color:var(--muted)}
.foot-bottom{
  display:flex;flex-direction:column;gap:.5rem;
  border-top:1px solid var(--hairline);padding-block:1.75rem 2.5rem;
  font-size:.75rem;color:var(--muted);
}
.foot-claim{letter-spacing:.03em}
@media(min-width:640px){.foot-bottom{flex-direction:row;justify-content:space-between;align-items:center}}
@media(min-width:768px){
  .foot-grid{grid-template-columns:5fr 3fr 4fr;padding-block:5rem}
  .foot-logo{font-size:3rem}
}

/* ═══════════════ OMEZENÝ POHYB (prvky této stránky) ═══════════════ */
@media(prefers-reduced-motion:reduce){
  .hero .mask>span,.hero .soft,.slide-group .mask>span{opacity:1!important;transform:none!important}
  .blur-in{opacity:1!important;filter:none!important;transform:none!important}
  .fade-in{opacity:1!important}
}