:root{
  --bg: #0b0f14;
  --panel: rgba(255,255,255,.06);
  --panel2: rgba(255,255,255,.09);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.66);
  --line: rgba(255,255,255,.12);
  --accent: #3aa0ff;
  --accent2: #63d0c9;

  --r: 18px;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --max: 1100px;
}

*{ box-sizing: border-box; }
html, body { height: 100%; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 20% 10%, rgba(58,160,255,.20), transparent 60%),
    radial-gradient(900px 500px at 80% 0%, rgba(99,208,201,.14), transparent 55%),
    var(--bg);
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; }

.container{
  width: min(var(--max), 100%);
  margin: 0 auto;
  padding: 0 16px;
}

.topbar{
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(11,15,20,.66);
  border-bottom: 1px solid var(--line);
}
.topbar__inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
}
.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;

  padding: 8px 12px;                 /* subtelny “chip” */
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);  /* minimalnie, premium */
}

.brand__logo{
  height: 44px;   /* wyraźnie większe, ale nadal schludne */
  width: auto;
  display: block;
  opacity: .95;
}


.topbar__actions{
  display: flex;
  gap: 10px;
  align-items: center;
}

.hero{
  padding: 34px 0 22px;
}
.hero__grid{
  display: grid;
  gap: 16px;
}
.hero__text h1{
  font-size: 34px;
  line-height: 1.12;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}
.lead{
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
}
.hero__cta{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.micro{
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.hero__card{
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  padding: 16px;
}
.hero__card h2{
  margin: 0 0 10px;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.list{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
}
.list li{ margin: 8px 0; }

.section{
  padding: 14px 0 34px;
}
.section__grid{
  display: grid;
  gap: 16px;
}
.card{
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 16px;
}
.card h2{
  margin: 0 0 10px;
  font-size: 16px;
}
.card p{
  margin: 0 0 10px;
  color: var(--muted);
  line-height: 1.6;
}
.card p strong{ color: var(--text); }
.steps{
  margin: 0 0 14px;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
}
.section__cta{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.footer{
  border-top: 1px solid var(--line);
  padding: 18px 0 26px;
}
.footer__inner{
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.muted{ color: var(--muted); }

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  user-select: none;
  transition: transform .06s ease, background .12s ease, border-color .12s ease;
}
.btn:hover{
  background: rgba(255,255,255,.06);
  text-decoration: none;
}
.btn:active{ transform: translateY(1px); }
.btn--primary{
  border-color: rgba(58,160,255,.35);
  background: linear-gradient(180deg, rgba(58,160,255,.22), rgba(58,160,255,.10));
}
.btn--ghost{
  background: rgba(255,255,255,.03);
}
.btn--lg{
  padding: 12px 16px;
  border-radius: 16px;
}

@media (min-width: 860px){
  .hero{ padding: 48px 0 26px; }
  .hero__grid{
    grid-template-columns: 1.1fr .9fr;
    align-items: start;
    gap: 18px;
  }
  .hero__text h1{ font-size: 44px; }
  .lead{ font-size: 17px; }
  .section__grid{
    grid-template-columns: 1fr 1fr;
  }
  .brand__logo{ height: 52px; }
}
/* subtelniejsze typografie dla premium wrażenia */
.hero__text h1 { letter-spacing: -0.03em; }
.lead { max-width: 52ch; }
.hero__card, .card { border-color: rgba(255,255,255,.10); }
.micro .sep{ margin: 0 8px; color: rgba(255,255,255,.35); }