:root{
  /* Paleta dostrojona do test.hww.pl — HWW dark #161922, teal #00b5b0 (zachowany), teal-dark #009491 */
  --green:#00b5b0;--green-d:#009491;--green-l:#dfe7e7;
  --accent:#33c4c0;
  --navy:#161922;        /* HWW dark — głębszy, lepszy do test.hww.pl */
  --ink:#161922;         /* tekst body: HWW dark */
  --muted:#626262;       /* HWW gray — neutralny, mniej zielony */
  --line:#e8eaed;        /* HWW gray-light na border */
  --bg:#f6f7f9;          /* HWW gray-lighter na tło */
  --white:#fff;
  --wind:#3a86c8;--pv:#e0a32e;--bess:#7a5cc0;
  --shadow-1:0 1px 2px rgba(22,25,34,.04), 0 1px 3px rgba(22,25,34,.05);
  --shadow-2:0 4px 10px -2px rgba(22,25,34,.06), 0 2px 4px rgba(22,25,34,.04);
  --shadow-3:0 16px 32px -10px rgba(22,25,34,.14), 0 4px 10px -2px rgba(22,25,34,.06);
  --shadow-green:0 8px 22px -6px rgba(0,181,176,.32);
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:22px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"DM Sans",ui-sans-serif,system-ui,sans-serif;color:var(--ink);background:var(--white);
  font-size:15px;line-height:1.6;letter-spacing:-.005em;
  font-feature-settings:"kern" 1,"ss01" 1;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:"DM Sans",ui-sans-serif,system-ui,sans-serif;letter-spacing:-.025em;line-height:1.12;font-weight:700;color:var(--navy)}
h1{font-size:clamp(32px,4.4vw,52px);line-height:1.05;letter-spacing:-.03em}
h2{font-size:clamp(24px,2.8vw,34px);line-height:1.15;letter-spacing:-.025em}
h3{font-size:clamp(18px,1.6vw,22px);letter-spacing:-.02em}
/* HWW utility classes — kompatybilne z test.hww.pl naming */
.tracking-wider{letter-spacing:.05em}
.tracking-widest{letter-spacing:.1em}
.uppercase{text-transform:uppercase}
.text-hww-teal{color:var(--green)}
.text-hww-dark{color:var(--navy)}
p{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),opacity .18s var(--ease)}
::selection{background:var(--green);color:#fff}

header{
  background:rgba(255,255,255,.78);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid rgba(228,233,232,.7);
  position:sticky;top:0;z-index:900;
}
.bar{display:flex;align-items:center;gap:26px;padding:0 32px;height:72px;max-width:1500px;margin:0 auto}
.brand{display:flex;align-items:center}
.brand img{height:30px;display:block}
nav{display:flex;gap:6px;font-weight:600;color:var(--muted);font-size:14px}
nav a{padding:8px 14px;border-radius:var(--r-sm);transition:background .18s var(--ease),color .18s var(--ease)}
nav a:hover{background:var(--green-l);color:var(--green-d)}
nav a.on{background:var(--green-l);color:var(--green-d)}
.bar .sp{flex:1}
.btn{
  font-family:"DM Sans",sans-serif;font-weight:700;border:none;border-radius:var(--r-sm);
  padding:11px 20px;cursor:pointer;font-size:13.5px;letter-spacing:-.005em;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .22s var(--ease);
  display:inline-flex;align-items:center;gap:8px;
}
.btn:active{transform:translateY(1px)}
.btn-pri{background:var(--green);color:#fff;box-shadow:0 1px 2px rgba(0,181,176,.18)}
.btn-pri:hover{background:var(--green-d);box-shadow:var(--shadow-green);transform:translateY(-1px)}
.btn-gh{background:transparent;color:var(--navy);border:1.5px solid var(--line)}
.btn-gh:hover{border-color:var(--green);color:var(--green);background:var(--green-l)}
.btn-lg{padding:14px 28px;font-size:15px}

/* ── Card primitive ─────────────────────────────────── */
.card-lift{transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.card-lift:hover{transform:translateY(-3px);box-shadow:var(--shadow-3)}

/* ── Icon system (Lucide-style line) ────────────────── */
i[data-icon]{display:inline-flex;align-items:center;justify-content:center;vertical-align:-.18em;color:currentColor;line-height:0}
i[data-icon] svg{display:block}
.toze-icon{flex-shrink:0}

/* ── Section rhythm ─────────────────────────────────── */
section{padding-block:8px}
.section, section.section{padding:72px 32px}
@media(max-width:720px){.section, section.section{padding:48px 18px}}
.tag{font-size:10px;font-weight:700;font-family:"DM Sans",sans-serif;padding:4px 9px;border-radius:20px;color:#fff;letter-spacing:.3px}
.t-wind{background:var(--wind)}.t-pv{background:var(--pv)}.t-bess{background:var(--bess)}
.stage{font-size:10px;font-weight:700;font-family:"DM Sans",sans-serif;padding:4px 9px;border-radius:20px;background:var(--green-l);color:var(--green-d)}
footer{background:var(--navy);color:#9fb3b2;padding:28px;font-size:12px}
footer .fin{max-width:1500px;margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
.proto{position:fixed;bottom:0;left:0;right:0;background:#000;color:#9fb3b2;font-size:11px;text-align:center;padding:6px;z-index:1000;letter-spacing:.4px}
#authnav{display:flex;gap:10px;align-items:center}
.who{font-size:12.5px;color:var(--muted);font-weight:600}
.who b{color:var(--green-d)}

/* ── Transitions & Polish ─────────────────────────────── */
.btn{transition:background .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease}
.btn-pri:hover{box-shadow:0 4px 14px rgba(0,181,176,.28)}
.btn-gh:hover{box-shadow:0 4px 14px rgba(1,22,39,.10)}
nav a{transition:color .15s ease}
a{transition:color .15s ease,opacity .15s ease}

/* ── Focus-visible (accessibility) ───────────────────── */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:3px solid var(--green);
  outline-offset:3px;
  border-radius:6px;
}

/* ── Touch targets (mobile min 44px) ─────────────────── */
.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center}
nav a{min-height:44px;display:inline-flex;align-items:center}

/* ── RWD breakpoint ~720px ────────────────────────────── */
@media(max-width:720px){
  .bar{
    flex-wrap:wrap;
    height:auto;
    padding:10px 16px;
    gap:10px;
    row-gap:8px;
  }
  .brand img{height:26px}
  nav{
    order:3;
    width:100%;
    flex-wrap:wrap;
    gap:4px 14px;
    font-size:13px;
    padding-bottom:6px;
  }
  nav a{font-size:13px;min-height:40px}
  .bar .sp{display:none}
  #authnav{
    margin-left:auto;
    gap:7px;
  }
  .who{font-size:12px}
  footer .fin{
    flex-direction:column;
    align-items:flex-start;
    gap:10px;
  }
  footer{padding:20px 16px}
}

/* ── RWD breakpoint ~520px ────────────────────────────── */
@media(max-width:520px){
  body{font-size:13px}
  .bar{padding:8px 12px;gap:8px}
  nav{gap:4px 10px;font-size:12px}
  nav a{min-height:38px;font-size:12px}
  .btn{font-size:12px;padding:10px 14px;min-height:44px}
  .btn-lg{font-size:14px;padding:12px 20px}
  #authnav{gap:6px}
  .who{font-size:11px}
  footer{font-size:11px;padding:16px 12px}
}