:root{
  --onyx:#0A0A0A;
  --grafit:#151515;
  --grafit-2:#1E1E1E;
  --srebro:#BFC1C2;
  --srebro-ciemne:#7C7E7F;
  --biel:#F7F6F3;
  --line:#2A2A2A;
  --display: 'Playfair Display', serif;
  --sans: 'Inter', sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--onyx);
  color:var(--biel);
  font-family:var(--sans);
  font-weight:300;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;background:none;border:none;color:inherit;cursor:pointer;}
:focus-visible{outline:1px solid var(--biel);outline-offset:4px;}

/* ---------- NAV ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:28px clamp(24px,5vw,64px);
  background:rgba(10,10,10,0.85);
  backdrop-filter:blur(6px);
  border-bottom:0.5px solid var(--line);
}
.logo{font-family:var(--display);letter-spacing:2px;font-size:15px;color:var(--biel);}
.logo span{display:block;font-size:8px;letter-spacing:5px;color:var(--srebro);margin-top:2px;}
nav ul{list-style:none;display:flex;gap:clamp(18px,3vw,40px);}
nav a{
  display:inline-block;
  font-size:11px;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--srebro-ciemne);padding:4px 0;position:relative;
  transition:color .3s ease;
}
nav a::after{
  content:'';position:absolute;left:0;bottom:-2px;width:0;height:1px;
  background:var(--srebro);transition:width .35s ease;
}
nav a:hover, nav a.active{color:var(--biel);}
nav a.active::after{width:100%;}
.nav-toggle{display:none;font-size:22px;}

/* ---------- PAGE CONTENT ---------- */
main{position:relative;min-height:100vh;}
section{
  padding:160px clamp(24px,6vw,96px) 100px;
  min-height:100vh;
  animation:fadeIn .5s ease both;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion:reduce){
  section{animation:none;}
  html{scroll-behavior:auto;}
}

/* signature cut-line sweep on load */
.cut-sweep{
  position:fixed;inset:0;z-index:200;pointer-events:none;
  background:var(--onyx);
}
.cut-sweep::before{
  content:'';position:absolute;top:0;left:0;width:100%;height:100%;
  background:var(--onyx);
  clip-path:polygon(0 0,100% 0,100% 100%,0 100%);
  animation:cutReveal 1.1s cubic-bezier(.77,0,.18,1) forwards;
}
.cut-sweep::after{
  content:'';position:absolute;top:0;left:0;height:100%;width:2px;
  background:linear-gradient(var(--biel),var(--srebro));
  animation:cutLine 1.1s cubic-bezier(.77,0,.18,1) forwards;
  box-shadow:0 0 20px 1px rgba(247,246,243,.5);
}
@keyframes cutReveal{
  0%{clip-path:polygon(0 0,0 0,0 100%,0 100%);}
  100%{clip-path:polygon(0 0,150% -50%,150% 150%,0 100%);}
}
@keyframes cutLine{
  0%{left:-2px;opacity:1;}
  95%{opacity:1;}
  100%{left:100%;opacity:0;}
}
@media (prefers-reduced-motion:reduce){
  .cut-sweep{display:none;}
}

/* ---------- HOME ---------- */
.hero{max-width:920px;}
.eyebrow{font-size:11px;letter-spacing:3px;color:var(--srebro-ciemne);text-transform:uppercase;margin-bottom:28px;}
h1{
  font-family:var(--display);font-weight:500;
  font-size:clamp(40px,6.5vw,88px);line-height:1.05;
  color:var(--biel);letter-spacing:-0.5px;
  max-width:14ch;
}
h1 em{font-style:italic;color:var(--srebro);}
.lede{
  margin-top:32px;font-size:17px;color:var(--srebro);
  max-width:46ch;font-weight:300;
}
.hero-meta{
  margin-top:64px;padding-top:24px;border-top:0.5px solid var(--line);
  display:flex;gap:48px;flex-wrap:wrap;
}
.hero-meta div{font-size:11px;letter-spacing:1px;color:var(--srebro-ciemne);text-transform:uppercase;}
.hero-meta strong{display:block;font-family:var(--display);font-weight:400;font-size:15px;color:var(--biel);letter-spacing:0;text-transform:none;margin-top:6px;}

/* ---------- USŁUGI ---------- */
.section-head{max-width:640px;margin-bottom:72px;}
.section-head .eyebrow{margin-bottom:20px;}
h2{font-family:var(--display);font-weight:500;font-size:clamp(30px,4vw,44px);color:var(--biel);}
.services{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:0;border-top:0.5px solid var(--line);}
.service{
  padding:40px 28px;border-bottom:0.5px solid var(--line);border-right:0.5px solid var(--line);
  transition:background .3s ease;
}
.service:hover{background:var(--grafit);}
.service .num{font-family:var(--display);font-size:13px;color:var(--srebro-ciemne);}
.service h3{font-family:var(--display);font-weight:500;font-size:22px;margin:18px 0 12px;color:var(--biel);}
.service p{font-size:14px;color:var(--srebro);max-width:32ch;}

/* ---------- PORTFOLIO ---------- */
.coming-soon{
  max-width:560px;padding:80px 0;text-align:left;
  border-top:0.5px solid var(--line);
}
.coming-soon h2{margin-bottom:20px;}
.coming-soon p{color:var(--srebro);font-size:15px;max-width:44ch;}
.coming-soon .tag{
  display:inline-block;margin-top:28px;padding:8px 18px;
  border:0.5px solid var(--srebro-ciemne);font-size:11px;letter-spacing:1.5px;
  text-transform:uppercase;color:var(--srebro);
}

/* ---------- PORTFOLIO / APP GRID (kafelki) ---------- */
.category-block{margin-bottom:56px;}
.category-block:last-child{margin-bottom:0;}
.category-label{
  font-size:11px;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--srebro);margin-bottom:20px;
  padding-bottom:14px;border-bottom:0.5px solid var(--line);
}
.tile-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:0;border-top:0.5px solid var(--line);border-left:0.5px solid var(--line);
}
.tile{
  display:flex;flex-direction:column;justify-content:space-between;
  padding:44px 32px;min-height:220px;
  border-bottom:0.5px solid var(--line);border-right:0.5px solid var(--line);
  transition:background .3s ease;
}
.tile:hover{background:var(--grafit);}
.tile:hover .tile-arrow{transform:translate(4px,-4px);}
.tile-top .tile-cat{
  font-size:11px;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--srebro-ciemne);margin-bottom:18px;display:block;
}
.tile h3{font-family:var(--display);font-weight:500;font-size:24px;color:var(--biel);margin-bottom:12px;}
.tile p{font-size:14px;color:var(--srebro);max-width:34ch;}
.tile-bottom{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:28px;padding-top:18px;border-top:0.5px solid var(--line);
}
.tile-bottom span{font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--srebro-ciemne);}
.tile-arrow{font-family:var(--display);font-size:18px;color:var(--srebro);transition:transform .3s ease;}
@media (max-width:760px){
  .tile{border-right:none;}
}

/* ---------- O NAS ---------- */
.manifesto{max-width:680px;}
.manifesto p{
  font-family:var(--display);font-weight:400;font-style:italic;
  font-size:clamp(22px,3vw,32px);line-height:1.5;color:var(--biel);
  margin-bottom:28px;
}
.manifesto .signed{
  margin-top:48px;font-family:var(--sans);font-style:normal;
  font-size:12px;letter-spacing:1px;color:var(--srebro-ciemne);text-transform:uppercase;
}

/* ---------- KONTAKT ---------- */
.contact-info{max-width:480px;}
.contact-info div{margin-bottom:36px;padding-bottom:20px;border-bottom:0.5px solid var(--line);}
.contact-info .label{font-size:11px;letter-spacing:1.5px;color:var(--srebro-ciemne);text-transform:uppercase;margin-bottom:8px;}
.contact-info .value{font-family:var(--display);font-size:22px;color:var(--biel);display:inline-block;transition:color .3s ease;}
a.value:hover{color:var(--srebro);}

@media (max-width:760px){
  nav ul{
    position:fixed;top:0;right:0;height:100vh;width:min(78vw,320px);
    background:var(--grafit);flex-direction:column;justify-content:center;
    align-items:flex-start;padding:0 40px;gap:28px;
    transform:translateX(100%);transition:transform .4s ease;
  }
  nav ul.open{transform:translateX(0);}
  .nav-toggle{display:block;margin-left:auto;}
  .service{border-right:none;}
}