:root{
  --bg:#0b0e13;          /* tło */
  --card:#10151d;        /* karty */
  --muted:#a5b1c2;       /* tekst pomocniczy */
  --text:#e6edf6;        /* tekst główny */
  --accent:#3b82f6;      /* niebieski */
  --accent-2:#22d3ee;    /* cyjan */
  --ring: rgba(59,130,246,.45);
  --max:1200px;
  --radius:18px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,"Helvetica Neue",Arial,sans-serif;background:radial-gradient(1200px 600px at 80% -10%, rgba(34,211,238,.08), transparent 60%),radial-gradient(800px 600px at 0% 10%, rgba(59,130,246,.10), transparent 60%),var(--bg);color:var(--text)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--max);margin:auto;padding:0 20px}
.btn{display:inline-flex;gap:.6rem;align-items:center;border:1px solid transparent;padding:.9rem 1.1rem;border-radius:14px;font-weight:600;transition:.25s ease;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#001024;box-shadow:0 10px 25px rgba(59,130,246,.35)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(59,130,246,.45)}
.btn-ghost{border-color:#203045;background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:#2a3e5a;background:rgba(255,255,255,.04)}

/* NAV */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,14,19,.6);backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.brand{display:flex;align-items:center;gap:.75rem}
.brand img{width:38px;height:38px;border-radius:10px}
.brand span{font-weight:800;letter-spacing:.4px}
.menu{display:flex;gap:1rem;align-items:center}
.menu a{padding:.65rem .8rem;border-radius:12px;color:var(--muted);font-weight:600}
.menu a:hover{color:var(--text);background:#0f1624}
.burger{display:none;border:0;background:transparent;color:var(--text);font-size:1.6rem}

/* HERO */
.hero{position:relative;padding:96px 0 72px}
.grid-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;gap:.5rem;align-items:center;color:#9acbff;background:rgba(59,130,246,.12);border:1px solid rgba(59,130,246,.25);padding:.35rem .6rem;border-radius:999px;font-size:.9rem}
h1{font-size:clamp(2rem,3.6vw,3rem);line-height:1.15;margin:.75rem 0 1rem}
.lead{color:var(--muted);font-size:1.05rem;margin-bottom:1.4rem}
.hero-card{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.07);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}

/* SECTIONS */
section{padding:72px 0}
h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:0 0 18px}
.sub{color:var(--muted);margin-top:-8px;margin-bottom:24px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);padding:22px;transition:transform .25s ease, border-color .25s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(59,130,246,.45)}
.card h3{margin:10px 0 6px}
.pill{display:inline-flex;align-items:center;gap:.4rem;padding:.28rem .55rem;border-radius:999px;border:1px solid rgba(255,255,255,.08);color:var(--muted);font-size:.85rem}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:20px}
.kpi{background:#0f1624;border:1px dashed rgba(255,255,255,.08);border-radius:16px;padding:16px;text-align:center}

/* PORTFOLIO */
.portfolio{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.work{position:relative;overflow:hidden;border-radius:16px;background:#0f1624;border:1px solid rgba(255,255,255,.06)}
.work img{width:100%;height:200px;object-fit:cover;opacity:.9;filter:saturate(1.1)}
.work .meta{position:absolute;inset:auto 0 0 0;padding:14px 16px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.65));}
.tag{font-size:.78rem;color:#b7c6dd}

/* ABOUT */
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}
ul.check{list-style:none;padding:0;margin:0}
ul.check li{margin:10px 0;padding-left:30px;position:relative}
ul.check li:before{content:"";position:absolute;left:0;top:9px;width:18px;height:18px;border-radius:50%;background:conic-gradient(var(--accent),var(--accent-2));mask: radial-gradient(circle 7px, transparent 8px, black 9px)}

/* CONTACT */
form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
form .full{grid-column:1/-1}
label{display:block;font-weight:600;margin:0 0 6px;color:#c9d6e7}
input,textarea{width:100%;padding:12px 14px;border-radius:12px;background:#0e1420;border:1px solid rgba(255,255,255,.08);color:var(--text);outline:none;transition:border-color .2s ease, box-shadow .2s ease}
textarea{min-height:140px;resize:vertical}
input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--ring)}
.consent{display:flex;align-items:flex-start;gap:.6rem;color:var(--muted);font-size:.9rem}

/* FOOTER */
footer{padding:28px 0;border-top:1px solid rgba(255,255,255,.06);color:#9aa9c0}

/* UTIL */
.fade-up{opacity:0;transform:translateY(10px);transition:all .5s ease}
.inview{opacity:1;transform:none}
.hide{display:none}

/* RESPONSIVE */
@media (max-width: 1024px){
  .grid-hero,.about{grid-template-columns:1fr}
}
@media (max-width: 840px){
  .cards{grid-template-columns:1fr 1fr}
  .portfolio{grid-template-columns:1fr 1fr}
  .kpis{grid-template-columns:1fr 1fr}
}
@media (max-width: 680px){
  .menu{display:none}
  .burger{display:block}
  .portfolio{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  form{grid-template-columns:1fr}
}
@media (min-width:1024px){
  .brand img{width:56px;height:56px}
}
/* === Zgoda RODO – pełna szerokość, dostępność, estetyka === */
.form-check {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: .75rem .75rem;
  align-items: start;
  margin-top: .25rem;
}
.form-check.full { grid-column: 1 / -1; }

/* checkbox – natywny wygląd + lekki szlif */
.form-check input[type="checkbox"]{
  appearance: none; -webkit-appearance: none;
  width: 22px; height: 22px; margin: .15rem 0 0;
  border: 2px solid rgba(255,255,255,.12);
  border-radius: .4rem; background: #0e1420;
  display: grid; place-content: center; cursor: pointer;
  transition: border-color .2s, box-shadow .2s, background-color .2s;
  outline: none;
}
.form-check input[type="checkbox"]::after{
  content:""; width:12px; height:12px; transform: scale(0);
  transition: transform .14s ease-in-out;
  clip-path: polygon(14% 44%, 0 60%, 40% 100%, 100% 28%, 84% 14%, 40% 70%);
  background: var(--accent);
}
.form-check input[type="checkbox"]:checked{
  border-color: var(--accent);
  background: color-mix(in oklab, var(--accent) 20%, #0e1420);
}
.form-check input[type="checkbox"]:checked::after{ transform: scale(1); }
.form-check input[type="checkbox"]:focus-visible{
  box-shadow: 0 0 0 3px rgba(59,130,246,.35);
}

/* etykieta i komunikaty */
.form-check label{
  line-height: 1.45; cursor: pointer; user-select: none; color: var(--text);
}
.form-check .help{
  grid-column: 2; margin: .2rem 0 0; color: var(--muted); font-size: .875rem;
}
.form-check .error{
  grid-column: 2; margin: 0; color: #fca5a5; font-size: .875rem; min-height: 1em;
}

/* stan błędu, gdy required i nie zaznaczono */
.was-validated .form-check input[type="checkbox"]:invalid{
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,.25);
}

/* mobile: trochę większa klikalność */
@media (max-width: 680px){
  .form-check { grid-template-columns: 24px 1fr; }
  .form-check input[type="checkbox"]{ width:24px; height:24px; }
}