:root{
  --bg:#0a1016; --panel:#121a22; --text:#e6eef8; --muted:#9fb2c5; --chip:#1b2531; --accent:#9ad8ff; --radius:16px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.65 Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}

/* Header overlay */
.site-header{position:fixed;inset:0 0 auto 0;height:56px;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:8px 14px;background:linear-gradient(180deg, rgba(8,12,16,.8), rgba(8,12,16,.45) 50%, transparent);backdrop-filter:blur(8px)}
.brand{display:flex;align-items:center;gap:10px}
.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#1e2a36;color:#a7ddff;font-weight:800}
.name{font-weight:600}
.lang-switch{display:flex;gap:8px}
.lang{appearance:none;border:1px solid #263242;background:#121a22;color:var(--text);padding:6px 12px;border-radius:999px;cursor:pointer}
.lang.active{background:#1a2330;border-color:#3a5066}

/* HERO full screen without gaps */
.hero{position:relative;min-height:100svh;width:100%;display:grid;place-items:center;background:radial-gradient(1200px 600px at 50% 0%, #06101a 0%, #060c14 60%, #050a12 100%)}
.hero img{position:relative;width:100vw;height:100svh;object-fit:cover;display:block}
.fade-bottom{position:absolute;left:0;right:0;bottom:-1px;height:64px;background:linear-gradient(to bottom, rgba(5,10,18,0), rgba(10,16,22,1))}

/* Content */
.content{padding:10px 14px 48px;margin:0 auto;max-width:1100px}
.cards{display:grid;grid-template-columns:1fr;gap:16px;margin:8px 0 18px}
.card{background:var(--panel);border:1px solid #1e2a36;border-radius:var(--radius);padding:18px;box-shadow:0 10px 30px rgba(0,0,0,.28)}
.card h2{margin:0 0 6px}
.card p{margin:0 0 10px}
.btn{display:inline-block;text-decoration:none;color:#051018;background:linear-gradient(180deg, #c6ecff, #85d0ff);padding:10px 14px;border-radius:12px;font-weight:700}

/* Manifest */
.manifest{background:var(--panel);border:1px solid #1e2a36;border-radius:var(--radius);padding:18px;box-shadow:0 10px 30px rgba(0,0,0,.28)}
.manifest h2{margin:0 0 8px}
.prose p{margin:.8em 0}
.prose em{color:#cfe9ff}
.prose strong{color:#e6f5ff}

/* Links */
.support{margin:18px 0 0}
.socials{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:8px;background:var(--chip);border:1px solid #22303e;border-radius:999px;padding:10px 14px;color:var(--text);text-decoration:none}
.mail a{color:var(--accent);text-decoration:none;border-bottom:1px dotted rgba(154,216,255,.4)}

/* Footer */
.site-footer{opacity:.75;text-align:center;padding:24px 10px}

/* Language visibility */
.only-pl{display:block}
.only-en{display:none}
html[data-lang="en"] .only-pl{display:none}
html[data-lang="en"] .only-en{display:block}

/* Larger screens */
@media (min-width: 860px){
  .content{padding:14px 18px 56px}
  .cards{grid-template-columns:1fr 1fr}
}