/* =========================================================
   Divadelní technika: "Od jiskry ke scéně"
   Dark cinematic industrial. Graphite + steel + molten amber.
   Type: Archivo (grotesk) + IBM Plex Mono (technical labels).
   ========================================================= */

:root{
  --bg:#07090D; --bg2:#0B0E13; --panel:#10151C;
  --line:rgba(255,255,255,.09); --line-strong:rgba(255,255,255,.16);
  --text:#E7ECF2; --muted:#95A0AD; --dim:#5A6470;
  --amber:#E8703A; --amber2:#F2A94B; --amber-soft:rgba(232,112,58,.13);
  --display:'Archivo',system-ui,sans-serif;
  --sans:'Archivo',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --wrap:1220px; --gut:clamp(20px,5vw,64px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
body{
  background:var(--bg); color:var(--text);
  font-family:var(--sans); font-size:17px; line-height:1.6; font-weight:400;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--amber);color:#0a0a0a}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut);width:100%}

/* ---- overlays ---- */
.grain{
  position:fixed;inset:0;z-index:9;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.vignette{position:fixed;inset:0;z-index:8;pointer-events:none;
  background:radial-gradient(120% 120% at 50% 40%,transparent 55%,rgba(0,0,0,.55) 100%)}

/* ---- kicker (technical mono label) ---- */
.kicker{
  font-family:var(--mono);font-size:.7rem;font-weight:500;letter-spacing:.22em;
  text-transform:uppercase;color:var(--amber2);display:inline-flex;align-items:center;gap:.75em;
}
.kicker::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--amber),transparent)}
.sec-head{max-width:760px;margin-bottom:clamp(36px,5vw,60px)}
.sec-title{
  font-family:var(--display);font-weight:800;line-height:1;letter-spacing:-.03em;
  font-size:clamp(2.1rem,5.4vw,3.7rem);margin-top:.42em;text-transform:none;
}

/* ---- buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:.6em;font-weight:600;font-size:.9rem;
  padding:.95em 1.6em;border-radius:2px;transition:.35s var(--ease);letter-spacing:.01em;
}
.btn-primary{background:var(--amber);color:#0a0a0a;box-shadow:0 8px 30px -12px var(--amber)}
.btn-primary:hover{background:var(--amber2);transform:translateY(-2px)}
.btn-ghost{color:var(--text);border:1px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber2)}

/* =================== NAV =================== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px var(--gut);transition:.4s var(--ease);
}
.nav.scrolled{background:rgba(7,9,13,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);padding:14px var(--gut)}
.brand{display:flex;align-items:center;gap:13px}
.brand-mark{width:19px;height:19px;color:var(--amber);display:inline-flex;flex:0 0 19px}
.brand-mark svg{width:100%;height:100%;display:block;filter:drop-shadow(0 0 10px var(--amber-soft))}
.brand-text{font-family:var(--display);font-size:.9rem;font-weight:700;letter-spacing:.05em;
  text-transform:uppercase;line-height:1}
.brand-sub{font-family:var(--mono);font-size:.56rem;letter-spacing:.18em;color:var(--dim);
  text-transform:uppercase;margin-left:.55em;vertical-align:middle;font-weight:400}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-family:var(--mono);font-size:.76rem;font-weight:400;color:var(--muted);
  transition:.3s;letter-spacing:.06em;text-transform:uppercase}
.nav-links a:hover{color:var(--text)}
.nav-cta{color:var(--text)!important;border:1px solid var(--line-strong);
  padding:.6em 1.1em;border-radius:2px}
.nav-cta:hover{border-color:var(--amber);color:var(--amber2)!important}

/* =================== HERO =================== */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden}
.hero-media{position:absolute;inset:-8% 0;z-index:0;will-change:transform}
.hero-media video,.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62}
.hero-video{z-index:1}
.hero-fallback{z-index:0}
@media (prefers-reduced-motion: reduce){.hero-video{display:none}}
.hero::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(7,9,13,.55) 0%,rgba(7,9,13,.2) 40%,rgba(7,9,13,.9) 92%,var(--bg) 100%)}
.hero::before{content:"";position:absolute;inset:0;z-index:1;
  background:radial-gradient(80% 60% at 15% 80%,var(--amber-soft),transparent 60%)}
.sparks{position:absolute;inset:0;z-index:2;pointer-events:none}
.hero-inner{position:relative;z-index:3;max-width:var(--wrap);margin:0 auto;width:100%;
  padding:0 var(--gut) clamp(56px,9vh,120px)}
.hero-title{
  font-family:var(--display);font-weight:800;font-size:clamp(2.8rem,8.4vw,6.6rem);
  line-height:.94;letter-spacing:-.04em;margin:.5em 0 .6em;text-transform:none;
}
.hero-title span{display:block}
.hero-title em{font-style:normal;color:var(--amber2)}
.hero-lead{max-width:48ch;color:#C4CDD7;font-size:clamp(1rem,1.5vw,1.18rem);line-height:1.6;font-weight:400}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:2.1em}
.scroll-cue{position:absolute;bottom:26px;right:30px;z-index:3;
  font-family:var(--mono);font-size:.62rem;letter-spacing:.3em;text-transform:uppercase;color:var(--dim);
  display:flex;flex-direction:column;align-items:center;gap:10px}
.scroll-cue span{width:1px;height:40px;background:linear-gradient(var(--amber),transparent);
  animation:cue 2.2s var(--ease) infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}
  55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* =================== MANIFEST =================== */
.manifest{padding:clamp(90px,15vh,180px) 0;background:var(--bg)}
.manifest .kicker{margin-bottom:1.5em}
.manifest-text{font-family:var(--display);font-weight:500;
  font-size:clamp(1.5rem,3.6vw,2.6rem);line-height:1.28;letter-spacing:-.02em;max-width:min(100%,18em)}
.manifest-text strong{font-weight:700;color:var(--amber2)}

/* =================== PROCES (pinned scrub) =================== */
.process{position:relative;height:420vh;background:var(--bg)}
.process-sticky{position:sticky;top:0;height:100svh;overflow:hidden}
.process-stage{position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transition:opacity .55s var(--ease),transform 1.4s var(--ease);transform:scale(1.08)}
.process-stage.active{opacity:1;transform:scale(1)}
.process-shade{position:absolute;inset:0;z-index:2;
  background:linear-gradient(180deg,rgba(7,9,13,.55),rgba(7,9,13,.35) 45%,rgba(7,9,13,.92));}
.process-content{position:relative;z-index:3;height:100%;max-width:var(--wrap);margin:0 auto;
  padding:0 var(--gut);display:flex;align-items:flex-end;padding-bottom:clamp(60px,12vh,140px)}
.process-caption{position:absolute;left:var(--gut);bottom:clamp(60px,12vh,140px);max-width:34ch;
  opacity:0;transform:translateY(28px);transition:.6s var(--ease);pointer-events:none}
.process-caption.active{opacity:1;transform:none}
.process-caption .num{font-family:var(--mono);font-size:.82rem;font-weight:500;color:var(--amber2);
  letter-spacing:.14em;display:block;margin-bottom:.9em}
.process-caption h2{font-family:var(--display);font-weight:800;
  font-size:clamp(2.2rem,6vw,4.2rem);line-height:.98;letter-spacing:-.035em;margin-bottom:.34em}
.process-caption p{color:#C4CDD7;font-size:clamp(1rem,1.6vw,1.16rem);max-width:36ch}
.process-progress{position:absolute;left:0;bottom:0;width:100%;height:2px;z-index:4;
  background:rgba(255,255,255,.08)}
.process-progress span{display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--amber),var(--amber2))}

/* =================== SLUŽBY =================== */
.services{padding:clamp(90px,14vh,170px) 0;background:var(--bg2);border-top:1px solid var(--line)}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line)}
.svc{background:var(--bg2);padding:clamp(30px,4vw,54px);transition:.4s var(--ease);position:relative}
.svc:hover{background:var(--panel)}
.svc-idx{font-family:var(--mono);font-size:.78rem;font-weight:500;color:var(--dim);letter-spacing:.1em}
.svc h3{font-family:var(--display);font-weight:700;font-size:clamp(1.4rem,2.6vw,1.9rem);
  line-height:1.08;letter-spacing:-.02em;margin:1.15em 0 .55em}
.svc p{color:var(--muted);font-size:1rem;max-width:38ch}
.svc::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--amber);transition:.45s var(--ease)}
.svc:hover::after{width:100%}

/* =================== REFERENCE =================== */
.reference{padding:clamp(90px,14vh,170px) 0;background:var(--bg)}
.ref-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ref-card{display:block}
.ref-img{aspect-ratio:4/5;overflow:hidden;position:relative;border:1px solid var(--line);
  background:var(--panel)}
.ref-img img{width:100%;height:114%;object-fit:cover;opacity:.78;
  transition:transform 1s var(--ease),opacity .5s;will-change:transform}
.ref-card:hover .ref-img img{transform:scale(1.06)!important;opacity:1}
.ref-meta{padding:18px 2px 0}
.ref-meta span{font-family:var(--mono);font-size:.68rem;font-weight:500;letter-spacing:.16em;
  text-transform:uppercase;color:var(--amber2)}
.ref-meta h3{font-family:var(--display);font-weight:700;font-size:1.3rem;margin-top:.5em;
  line-height:1.12;letter-spacing:-.02em}
.ref-note{margin-top:36px;color:var(--dim);font-size:.92rem;font-family:var(--mono);letter-spacing:.02em}

/* =================== PROČ MY =================== */
.why{padding:clamp(90px,14vh,170px) 0;background:var(--bg2);border-top:1px solid var(--line)}
.why-list{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line)}
.why-list li{background:var(--bg2);padding:clamp(28px,3.4vw,48px);display:flex;gap:22px;align-items:flex-start;list-style:none}
.why-num{font-family:var(--mono);font-size:.95rem;font-weight:500;color:var(--amber);
  border:1px solid var(--line-strong);width:44px;height:44px;flex:0 0 44px;
  display:grid;place-items:center;border-radius:2px}
.why-list h3{font-family:var(--display);font-weight:700;font-size:1.45rem;letter-spacing:-.02em;margin-bottom:.4em}
.why-list p{color:var(--muted);font-size:.98rem}

/* =================== KONTAKT =================== */
.contact{position:relative;padding:clamp(110px,20vh,220px) 0;overflow:hidden}
.contact-media{position:absolute;inset:-10% 0;z-index:0}
.contact-media img{width:100%;height:100%;object-fit:cover;opacity:.28}
.contact::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,var(--bg),rgba(7,9,13,.6) 40%,var(--bg))}
.contact-inner{position:relative;z-index:2;text-align:center;display:flex;flex-direction:column;align-items:center}
.contact-title{font-family:var(--display);font-weight:800;
  font-size:clamp(2.2rem,6vw,4.2rem);line-height:1.02;letter-spacing:-.035em;margin:.55em 0 1.15em}
.contact-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:clamp(28px,6vw,80px);margin-bottom:2.6em}
.c-item span{display:block;font-family:var(--mono);font-size:.68rem;font-weight:500;letter-spacing:.18em;
  text-transform:uppercase;color:var(--dim);margin-bottom:.8em}
.c-item a,.c-item p{font-family:var(--display);font-size:1.18rem;font-weight:600;color:var(--text);transition:.3s;letter-spacing:-.01em}
.c-item a:hover{color:var(--amber2)}

/* =================== FOOTER =================== */
.footer{border-top:1px solid var(--line);padding:34px 0;background:var(--bg)}
.footer-in{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
  font-family:var(--mono);font-size:.76rem;color:var(--dim);letter-spacing:.03em}
.footer-tag{letter-spacing:.16em;text-transform:uppercase;font-size:.68rem}

/* =================== REVEAL =================== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.06s}
.reveal:nth-child(3){transition-delay:.12s}
.reveal:nth-child(4){transition-delay:.18s}

/* =================== RESPONSIVE =================== */
@media(max-width:860px){
  body{font-size:16px}
  .nav-links{gap:16px}
  .nav-links a:not(.nav-cta){display:none}
  .svc-grid,.why-list{grid-template-columns:1fr}
  .ref-grid{grid-template-columns:1fr;gap:16px}
  .ref-img{aspect-ratio:16/10}
  .process{height:380vh}
  .process-caption{right:var(--gut)}
}
@media(max-width:520px){
  .hero-actions .btn{flex:1;justify-content:center}
  .contact-grid{flex-direction:column;gap:24px}
}

/* =================== MOTION SAFETY =================== */
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .process{height:auto}
  .process-sticky{position:relative;height:auto}
  .process-stage{position:relative;opacity:1;transform:none;min-height:60vh}
  .process-caption{position:relative;opacity:1;transform:none;left:auto;bottom:auto;
    background:var(--bg);padding:40px var(--gut)}
  .hero-media,.contact-media{inset:0}
}