/* =========================
   Na4Sec – styles.css
   ========================= */

:root{
  --bg0:#050914;
  --bg1:#060b16;
  --card:rgba(255,255,255,.04);
  --stroke:rgba(255,255,255,.12);
  --text:#eaf0ff;
  --muted:rgba(234,240,255,.72);
  --muted2:rgba(234,240,255,.55);
  --accent1:rgba(71,245,196,1);
  --accent2:rgba(58,209,255,1);
  --shadow:0 16px 60px rgba(0,0,0,.45);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,var(--bg1),var(--bg0));
}

a{color:inherit}
.skip{
  position:absolute; left:-999px; top:12px;
  background:#fff; color:#000; padding:10px 12px; border-radius:10px;
}
.skip:focus{left:12px; z-index:1000}

.container{max-width:1120px; margin:0 auto; padding:0 20px}
.muted{color:var(--muted)}
.muted.tiny,.tiny{font-size:12px; line-height:1.45; color:var(--muted2)}
.sr{position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0}

/* Topbar */
.topbar{
  position:sticky; top:0; z-index:50;
  background:rgba(5,9,20,.55);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar__inner{display:flex; align-items:center; justify-content:space-between; height:74px; gap:18px}
.brand{display:flex; align-items:center; gap:12px; min-width:220px}
.brand__mark{width:44px; height:44px; display:grid; place-items:center}
.brand__text{display:flex; flex-direction:column; gap:2px}
.brand__name{font-weight:900; letter-spacing:.06em}
.brand__name--caps{text-transform:uppercase}
.brand__tag{font-size:12px; color:var(--muted2); letter-spacing:.04em}

.nav{display:flex; align-items:center; gap:16px}
.nav__menu{display:flex; align-items:center; gap:18px}
.nav__menu a{color:rgba(234,240,255,.82); text-decoration:none; font-weight:600; font-size:14px}
.nav__menu a:hover{color:#fff}
.nav__toggle{display:none; background:transparent; border:0; color:#fff; padding:10px; border-radius:12px}
.nav__toggleBars{
  display:inline-block; width:20px; height:2px; background:rgba(234,240,255,.85);
  position:relative; border-radius:2px;
}
.nav__toggleBars:before,.nav__toggleBars:after{
  content:""; position:absolute; left:0; width:20px; height:2px; background:rgba(234,240,255,.85); border-radius:2px;
}
.nav__toggleBars:before{top:-6px}
.nav__toggleBars:after{top:6px}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  padding:12px 18px;
  border-radius:999px;
  text-decoration:none;
  border:1px solid rgba(255,255,255,.16);
  color:rgba(234,240,255,.9);
  background:rgba(255,255,255,.03);
  box-shadow:none;
  font-weight:700;
}
.btn:hover{border-color:rgba(255,255,255,.28)}
.btn--primary{
  border:none;
  color:#051017;
  background:linear-gradient(90deg, rgba(71,245,196,1), rgba(58,209,255,1));
  box-shadow:0 18px 60px rgba(58,209,255,.14);
}
.btn--ghost{background:transparent}
.btn--sm{padding:10px 14px; font-size:13px}

/* HERO – jedno tło */
.hero{
  position:relative;
  padding:86px 0 48px;
  background:
    radial-gradient(1200px 720px at 65% 35%, rgba(58,209,255,.18), transparent 60%),
    radial-gradient(900px 540px at 35% 50%, rgba(71,245,196,.11), transparent 62%),
    linear-gradient(180deg, var(--bg1) 0%, var(--bg0) 100%);
  overflow:hidden;
}
.hero__bg{
  position:absolute; inset:-120px -80px auto -80px; height:520px;
  background:
    radial-gradient(480px 260px at 55% 50%, rgba(58,209,255,.14), transparent 65%),
    radial-gradient(420px 240px at 45% 40%, rgba(71,245,196,.10), transparent 60%);
  pointer-events:none;
  filter: blur(0px);
  opacity:.9;
}
.hero__grid{display:grid; grid-template-columns: 1.05fr .95fr; gap:56px; align-items:center}
.hero__content--centered{padding:6px 0}
.badge{
  display:inline-flex; align-items:center; gap:10px;
  padding:8px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.10);
  color:rgba(234,240,255,.78);
  font-size:12px;
  letter-spacing:.10em;
  text-transform:uppercase;
}
.badge__dot{width:8px; height:8px; border-radius:50%; background:linear-gradient(90deg,var(--accent1),var(--accent2)); box-shadow:0 0 20px rgba(58,209,255,.25)}
.hero__title{margin:18px 0 12px; font-size:64px; line-height:1.03; letter-spacing:-.02em}
.hero__title--brand .heroBrand{font-weight:900}
.hero__lead{margin:0; color:var(--muted); font-size:16px; line-height:1.75; max-width:58ch}
.hero__cta{display:flex; gap:12px; margin-top:22px; flex-wrap:wrap}
.hero__bullets{display:grid; gap:10px; margin-top:18px}
.hero__bullets--two{grid-template-columns:1fr 1fr}
.bullet{
  padding:12px 14px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.02);
  color:rgba(234,240,255,.78);
  font-size:13px;
  line-height:1.45;
}

/* LOGO wtopione: prawdziwe jedno tło dzięki przezroczystej wersji PNG + delikatny glow */
.hero__right{display:grid; place-items:center}
.hero__logoDirect{
  width:min(560px, 100%);
  height:auto;
  display:block;
  background:transparent;
  border:0;
  filter:
    drop-shadow(0 0 28px rgba(58,209,255,.40))
    drop-shadow(0 0 70px rgba(71,245,196,.18));
  opacity: .98;
}

/* Sections */
.section{padding:64px 0}
.section--alt{
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0));
  border-top:1px solid rgba(255,255,255,.05);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.section__head{display:grid; gap:10px; margin-bottom:18px}
.section__head h2{margin:0; font-size:28px; letter-spacing:-.01em}
.section__head p{margin:0}

/* Cards */
.cards{display:grid; grid-template-columns: repeat(3, 1fr); gap:16px; margin-top:18px}
.cards--four{grid-template-columns: repeat(4, 1fr)}
.card{
  padding:18px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 10px 36px rgba(0,0,0,.24);
}
.card__icon{font-size:22px; margin-bottom:8px}
.card h3{margin:0 0 10px; font-size:16px}
.list{margin:0; padding-left:18px; color:var(--muted); line-height:1.55}
.list li{margin:6px 0}

/* Grid3 features */
.grid3{display:grid; grid-template-columns: repeat(3, 1fr); gap:16px; margin-top:18px}
.feature{
  padding:18px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.02);
  border:1px solid rgba(255,255,255,.10);
}
.feature h3{margin:0 0 8px; font-size:15px}
.feature p{margin:0}

/* Steps */
.steps{list-style:none; padding:0; margin:18px 0 0; display:grid; gap:14px}
.step{
  display:grid; grid-template-columns: 44px 1fr; gap:14px;
  padding:16px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.02);
  border:1px solid rgba(255,255,255,.10);
}
.step__n{
  width:44px; height:44px; border-radius:14px;
  display:grid; place-items:center;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.12);
  font-weight:900;
}
.step__body h3{margin:0 0 6px; font-size:15px}
.step__body p{margin:0}

/* Contact */
.contact__grid{display:grid; grid-template-columns: 1fr 1fr; gap:24px; align-items:start}
.contact__cards{display:grid; grid-template-columns: 1fr 1fr; gap:12px; margin-top:14px}
.contactCard{
  padding:14px;
  border-radius:16px;
  background:rgba(255,255,255,.02);
  border:1px solid rgba(255,255,255,.10);
}
.contactCard__k{font-size:12px; color:var(--muted2); text-transform:uppercase; letter-spacing:.08em}
.contactCard__v{margin-top:6px; font-weight:800}
.contactCard__v a{text-decoration:none}

.form{
  padding:18px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.10);
}
.form label{display:grid; gap:8px; margin-bottom:12px; color:rgba(234,240,255,.85); font-weight:700; font-size:13px}
.form input,.form textarea{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(5,9,20,.55);
  color:var(--text);
  outline:none;
}
.form input:focus,.form textarea:focus{border-color:rgba(58,209,255,.45); box-shadow:0 0 0 4px rgba(58,209,255,.10)}
.form__row{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.form__actions{display:flex; align-items:center; gap:12px; margin-top:12px; flex-wrap:wrap}
.consent{display:flex; gap:10px; align-items:flex-start; font-weight:600}
.consent input{margin-top:3px; width:16px; height:16px}
.form__note{margin-top:10px}

/* Footer */
.footer{border-top:1px solid rgba(255,255,255,.06); padding:20px 0; background:rgba(5,9,20,.35)}
.footer__inner{display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap}
.footer__right{display:flex; gap:14px; align-items:center}
.footer__right a{color:rgba(234,240,255,.70); text-decoration:none; font-weight:700; font-size:13px}
.footer__right a:hover{color:#fff}

/* Light theme (optional) */
body.light{
  --bg0:#f6f8ff;
  --bg1:#ffffff;
  --text:#06101b;
  --muted:rgba(6,16,27,.75);
  --muted2:rgba(6,16,27,.60);
  background:linear-gradient(180deg,#fff,#f6f8ff);
}
body.light .topbar{background:rgba(255,255,255,.7)}
body.light .badge, body.light .card, body.light .feature, body.light .step, body.light .form, body.light .contactCard{
  background:rgba(6,16,27,.03);
  border-color:rgba(6,16,27,.10);
}
body.light .nav__menu a, body.light .footer__right a{color:rgba(6,16,27,.75)}

/* Responsive */
@media (max-width: 980px){
  .hero__grid{grid-template-columns:1fr; gap:26px}
  .hero__title{font-size:52px}
  .hero__bullets--two{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .cards--four{grid-template-columns:1fr}
  .grid3{grid-template-columns:1fr}
  .contact__grid{grid-template-columns:1fr}
  .form__row{grid-template-columns:1fr}
  .nav__toggle{display:inline-flex}
  .nav__menu{
    position:absolute;
    right:20px;
    top:74px;
    display:none;
    flex-direction:column;
    gap:10px;
    padding:12px;
    border-radius:16px;
    background:rgba(5,9,20,.85);
    border:1px solid rgba(255,255,255,.10);
    box-shadow:var(--shadow);
  }
  .nav__menu.is-open{display:flex}
}