/* =========================================================
   Perfect WiFi — wspólny arkusz stylów
   Design tokens + komponenty używane na stronie głównej
   i na stronach poradnikowych (SEO landing pages).
   ========================================================= */

/* ---------- SELF-HOSTED FONTS ----------
   Statyczne, podzbiory WOFF2 (tylko łacina + polskie znaki),
   wygenerowane z fontów zmiennych Google Fonts. Ładowane lokalnie
   zamiast z fonts.googleapis.com — mniej zapytań DNS/TLS, szybszy LCP. */
@font-face{
  font-family:'Inter';
  src:url('/fonts/Inter-Regular.woff2') format('woff2');
  font-weight:400; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'Inter';
  src:url('/fonts/Inter-SemiBold.woff2') format('woff2');
  font-weight:600; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'Space Grotesk';
  src:url('/fonts/SpaceGrotesk-SemiBold.woff2') format('woff2');
  font-weight:600; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'Space Grotesk';
  src:url('/fonts/SpaceGrotesk-Bold.woff2') format('woff2');
  font-weight:700; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'JetBrains Mono';
  src:url('/fonts/JetBrainsMono-Regular.woff2') format('woff2');
  font-weight:400; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'JetBrains Mono';
  src:url('/fonts/JetBrainsMono-Medium.woff2') format('woff2');
  font-weight:500; font-style:normal; font-display:swap;
}
@font-face{
  font-family:'JetBrains Mono';
  src:url('/fonts/JetBrainsMono-Bold.woff2') format('woff2');
  font-weight:700; font-style:normal; font-display:swap;
}

:root{
  --bg:#050914;
  --bg-elev:#0b1530;
  --bg-elev-2:#101d42;
  --line:#1e2c54;
  --cyan:#22d3ee;
  --blue:#3b82f6;
  --green:#34d399;
  --amber:#f5a524;
  --red:#ef4444;
  --text:#eaf1ff;
  --text-dim:#8fa0c7;
  --text-dimmer:#5d6d94;
  --radius:16px;
  --maxw:1180px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',system-ui,sans-serif;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed; inset:0;
  background:
    radial-gradient(ellipse 900px 600px at 15% -10%, rgba(34,211,238,0.14), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 10%, rgba(59,130,246,0.12), transparent 60%);
  pointer-events:none;
  z-index:0;
}
h1,h2,h3,h4{font-family:'Space Grotesk',sans-serif; font-weight:600; letter-spacing:-0.01em;}
.mono{font-family:'JetBrains Mono',monospace;}
a{color:inherit; text-decoration:none;}
img{display:block; max-width:100%;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 28px; position:relative; z-index:1;}
section{position:relative; z-index:1;}

/* ---------- NAV ---------- */
header{
  position:sticky; top:0; z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(5,9,20,0.72);
  border-bottom:1px solid var(--line);
}
nav.wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:72px;
}
.brand{display:flex; align-items:center; gap:10px; font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:1.15rem;}
.brand img{width:34px; height:34px; border-radius:9px;}
.brand .wifi-word{color:var(--cyan);}
.navlinks{display:none; align-items:center; gap:34px; font-size:0.92rem; color:var(--text-dim);}
.navlinks a:hover{color:var(--text);}
@media(min-width:880px){ .navlinks{display:flex;} }
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:11px 20px; border-radius:100px;
  font-weight:600; font-size:0.92rem;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space:nowrap;
  border:none; cursor:pointer;
}
.btn-primary{
  background:linear-gradient(135deg, var(--cyan), var(--blue));
  color:#04101f;
}
.btn-primary:hover{ transform:translateY(-1px); box-shadow:0 8px 24px -8px rgba(34,211,238,0.55); }
.btn-ghost{ border:1px solid var(--line); color:var(--text); }
.btn-ghost:hover{ border-color:var(--cyan); }

/* Sticky nagłówek pokazuje pełny label "Pobierz aplikację" na desktopie
   i skrócony "Pobierz" na telefonie, żeby przycisk zawsze mieścił się
   w jednej linii obok logo i pozostawał widoczny podczas scrollowania. */
.btn-short{display:none;}
@media(max-width:480px){
  .btn-full{display:none;}
  .btn-short{display:inline;}
}

/* ---------- ACCESSIBILITY: focus-visible ----------
   Widoczny, spójny stan fokusu klawiaturowego dla wszystkich
   interaktywnych elementów (linki, przyciski, <summary>, karty trybów). */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
.mode-tab:focus-visible,
.related-card:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:4px;
  border-radius:8px;
}

/* ---------- HERO ---------- */
.hero{padding:64px 0 30px;}
.hero-grid{ display:grid; grid-template-columns:1fr; gap:40px; align-items:center; }
@media(min-width:960px){ .hero-grid{grid-template-columns:0.92fr 1.15fr; gap:20px;} }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:'JetBrains Mono',monospace; font-size:0.78rem; letter-spacing:0.04em;
  color:var(--cyan); background:rgba(34,211,238,0.08);
  border:1px solid rgba(34,211,238,0.25);
  padding:6px 12px; border-radius:100px; margin-bottom:20px;
}
.eyebrow .dot{width:6px; height:6px; border-radius:50%; background:var(--green); box-shadow:0 0 8px var(--green);}
h1.headline{
  font-size:clamp(2rem, 3.9vw, 3.05rem);
  line-height:1.1;
  margin-bottom:18px;
}
h1.headline .grad{
  background:linear-gradient(100deg, var(--cyan), var(--blue) 65%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p.lead{
  font-size:1.07rem; color:var(--text-dim); max-width:480px; margin-bottom:14px;
}
.hero p.micro{
  font-size:0.9rem; color:var(--text-dimmer); margin-bottom:28px;
}
.hero-ctas{display:flex; flex-wrap:wrap; gap:14px; margin-bottom:28px;}
.hero-meta{display:flex; flex-direction:column; gap:12px; font-size:0.88rem; color:var(--text-dim);}
.hero-meta span{display:flex; align-items:center; gap:9px;}
.hero-meta svg{width:16px; height:16px; stroke:var(--green); flex:none;}

.hero-art{position:relative;}
.hero-art .glow{
  position:absolute; inset:-8%;
  background:radial-gradient(circle at 50% 45%, rgba(34,211,238,0.2), transparent 65%);
  filter:blur(10px); z-index:0;
}
.hero-art img{
  position:relative; z-index:1; border-radius:18px;
  border:1px solid var(--line);
  box-shadow:0 30px 80px -30px rgba(0,0,0,0.7);
  width:100%;
  height:auto;
  display:block;
}
.hero-art .float-badge{
  position:absolute; z-index:2;
  display:flex; align-items:center; gap:8px;
  background:rgba(5,9,20,0.88);
  border:1px solid rgba(34,211,238,0.4);
  border-radius:100px;
  padding:9px 16px;
  font-family:'JetBrains Mono',monospace;
  font-size:0.78rem;
  box-shadow:0 12px 30px -12px rgba(0,0,0,0.6);
  backdrop-filter:blur(6px);
}
.hero-art .float-badge .fdot{width:7px; height:7px; border-radius:50%; background:var(--green); box-shadow:0 0 8px var(--green);}
.hero-art .badge-pos{ left:6%; bottom:8%; }
.hero-art .badge-val{ right:6%; top:9%; color:var(--green); }
@media(max-width:600px){ .hero-art .float-badge{ font-size:0.68rem; padding:7px 12px; } }

/* ---------- TRUST BAR ---------- */
.trust-bar{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding:22px 0; margin-top:6px;
}
.trust-bar .wrap{
  display:grid; grid-template-columns:repeat(2,1fr); gap:18px;
}
@media(min-width:700px){ .trust-bar .wrap{grid-template-columns:repeat(4,1fr);} }
.tb-item{display:flex; align-items:center; gap:10px;}
.tb-item .ticon{
  width:34px; height:34px; border-radius:9px; flex:none;
  background:rgba(34,211,238,0.1); border:1px solid rgba(34,211,238,0.22);
  display:flex; align-items:center; justify-content:center;
}
.tb-item .ticon svg{width:17px; height:17px; stroke:var(--cyan);}
.tb-item .tt-text{font-size:0.86rem; font-weight:600; color:var(--text);}

/* ---------- SECTION HEADERS ---------- */
.section{padding:88px 0;}
.section-head{max-width:640px; margin-bottom:48px;}
.section-tag{
  font-family:'JetBrains Mono',monospace; font-size:0.78rem; color:var(--blue);
  letter-spacing:0.06em; text-transform:uppercase; margin-bottom:14px; display:block;
}
.section-head h2{font-size:clamp(1.6rem,2.8vw,2.2rem); margin-bottom:14px;}
.section-head p{color:var(--text-dim); font-size:1.02rem;}

/* ---------- MODE SWITCHER ---------- */
.mode-panel{
  background:linear-gradient(180deg, var(--bg-elev), var(--bg-elev-2));
  border:1px solid var(--line);
  border-radius:24px;
  padding:8px;
  position:relative;
  overflow:hidden;
}
.mode-tabs{
  display:grid; grid-template-columns:1fr; gap:8px;
  padding:8px;
}
@media(min-width:720px){ .mode-tabs{grid-template-columns:1fr 1fr 1fr;} }
.mode-tab{
  display:flex; align-items:center; gap:12px;
  padding:15px 16px; border-radius:16px;
  cursor:pointer; border:1px solid transparent;
  transition:background .18s ease, border-color .18s ease;
  text-align:left;
  background:transparent;
}
.mode-tab .ic{
  width:36px; height:36px; border-radius:10px; flex:none;
  display:flex; align-items:center; justify-content:center;
  background:rgba(255,255,255,0.05); font-size:1.05rem;
}
.mode-tab .tt{font-weight:600; font-size:0.94rem;}
.mode-tab .sub{font-size:0.78rem; color:var(--text-dimmer); margin-top:2px;}
.mode-tab.active{ background:rgba(34,211,238,0.07); border-color:rgba(34,211,238,0.35); }
.mode-tab.active .ic{ background:linear-gradient(135deg, var(--cyan), var(--blue)); }
.mode-tab.active .tt{color:#fff;}

.mode-body{ padding:30px 30px 36px; display:grid; grid-template-columns:1fr; gap:30px; }
@media(min-width:860px){ .mode-body{grid-template-columns:1fr 1fr;} }
.mode-panel-text h3{font-size:1.25rem; margin-bottom:10px;}
.mode-panel-text p{color:var(--text-dim); font-size:0.95rem; margin-bottom:20px;}

.steps{list-style:none; display:flex; flex-direction:column; gap:0;}
.step{ display:flex; gap:14px; padding:13px 0; border-top:1px solid var(--line); }
.step:first-child{border-top:none;}
.step .n{
  font-family:'JetBrains Mono',monospace; font-size:0.76rem; color:var(--bg);
  background:var(--cyan); width:23px; height:23px; border-radius:7px;
  display:flex; align-items:center; justify-content:center; flex:none; margin-top:2px;
  font-weight:700;
}
.step .st-t{font-weight:600; font-size:0.9rem;}
.step .st-d{font-size:0.82rem; color:var(--text-dimmer); margin-top:2px;}

.heatmap-card{
  border-radius:16px; border:1px solid var(--line);
  background:radial-gradient(ellipse at 30% 20%, rgba(59,130,246,0.18), transparent 55%),
             radial-gradient(ellipse at 70% 75%, rgba(239,68,68,0.14), transparent 50%),
             var(--bg);
  padding:22px; display:flex; flex-direction:column; gap:16px; justify-content:space-between;
  min-height:250px;
}
.heatmap-card .hc-top{display:flex; justify-content:space-between; align-items:flex-start;}
.hc-title{font-family:'JetBrains Mono',monospace; font-size:0.74rem; color:var(--text-dimmer);}
.hc-badge{ font-family:'JetBrains Mono',monospace; font-size:0.72rem; padding:4px 9px; border-radius:100px; border:1px solid var(--line); color:var(--text-dim); }
.hc-readout{display:flex; align-items:baseline; gap:8px;}
.hc-readout .val{font-family:'JetBrains Mono',monospace; font-size:2.2rem; font-weight:700;}
.hc-readout .unit{font-family:'JetBrains Mono',monospace; font-size:0.88rem; color:var(--text-dimmer);}
.scale{display:flex; height:8px; border-radius:100px; overflow:hidden;}
.scale span{flex:1;}
.scale-labels{display:flex; justify-content:space-between; font-family:'JetBrains Mono',monospace; font-size:0.66rem; color:var(--text-dimmer);}

/* ---------- FEATURE GRID ---------- */
.feat-grid{ display:grid; grid-template-columns:1fr; gap:1px; background:var(--line); border:1px solid var(--line); border-radius:20px; overflow:hidden; }
@media(min-width:700px){ .feat-grid{grid-template-columns:1fr 1fr;} }
@media(min-width:1040px){ .feat-grid{grid-template-columns:1fr 1fr 1fr;} }
.feat{ background:var(--bg-elev); padding:28px 24px; transition:background .18s ease; }
.feat:hover{background:var(--bg-elev-2);}
.feat .fic{ width:38px; height:38px; border-radius:11px; background:rgba(34,211,238,0.1); border:1px solid rgba(34,211,238,0.22); display:flex; align-items:center; justify-content:center; margin-bottom:15px; }
.feat .fic svg{width:19px; height:19px; stroke:var(--cyan);}
.feat h4{font-size:1rem; margin-bottom:8px;}
.feat p{font-size:0.87rem; color:var(--text-dimmer);}
.feat .beta{ font-family:'JetBrains Mono',monospace; font-size:0.62rem; color:var(--amber); border:1px solid rgba(245,165,36,0.4); padding:2px 6px; border-radius:5px; margin-left:8px; vertical-align:middle; }

/* ---------- ENGINE / CREDIBILITY ---------- */
.engine{ background:var(--bg-elev); border:1px solid var(--line); border-radius:24px; padding:44px; }
.engine-lead{max-width:620px; margin-bottom:30px;}
.engine-lead h3{font-size:1.55rem; margin-bottom:12px;}
.engine-lead p{color:var(--text-dim); font-size:0.98rem;}
.engine-chips{ display:flex; flex-wrap:wrap; gap:12px; margin-top:24px; }
.echip{
  display:flex; align-items:center; gap:9px;
  background:var(--bg); border:1px solid var(--line); border-radius:100px;
  padding:10px 18px; font-size:0.88rem; font-weight:600;
}
.echip svg{width:16px; height:16px; stroke:var(--cyan);}
.tech-details{ margin-top:30px; border-top:1px solid var(--line); padding-top:22px; }
.tech-details summary{
  cursor:pointer; list-style:none; display:flex; align-items:center; gap:10px;
  font-family:'JetBrains Mono',monospace; font-size:0.85rem; color:var(--cyan); font-weight:500;
}
.tech-details summary::-webkit-details-marker{display:none;}
.tech-details summary::after{content:"→"; transition:transform .2s ease;}
.tech-details[open] summary::after{transform:rotate(90deg);}
.engine-list{display:flex; flex-direction:column; gap:18px; margin-top:22px;}
.engine-item{display:flex; gap:14px;}
.engine-item .dot2{ width:8px; height:8px; border-radius:50%; background:var(--blue); margin-top:7px; flex:none; }
.engine-item h5{font-size:0.92rem; margin-bottom:3px;}
.engine-item p{font-size:0.85rem; color:var(--text-dimmer); margin:0;}

/* ---------- PRICING ---------- */
.price-grid{display:grid; grid-template-columns:1fr; gap:22px;}
@media(min-width:760px){ .price-grid{grid-template-columns:1fr 1fr;} }
.price-card{ border:1px solid var(--line); border-radius:22px; padding:34px; background:var(--bg-elev); display:flex; flex-direction:column; }
.price-card.pro{
  background:linear-gradient(180deg, rgba(34,211,238,0.08), rgba(59,130,246,0.04)), var(--bg-elev);
  border-color:rgba(34,211,238,0.4);
  position:relative;
}
.price-card.pro::before{
  content:"PEŁNE PLANOWANIE WIFI";
  position:absolute; top:-1px; right:24px;
  font-family:'JetBrains Mono',monospace; font-size:0.6rem; letter-spacing:0.05em;
  background:linear-gradient(135deg, var(--cyan), var(--blue)); color:#04101f;
  padding:6px 12px; border-radius:0 0 8px 8px; font-weight:700;
}
.price-card h3{font-size:1.15rem; margin-bottom:6px;}
.price-card .pdesc{font-size:0.86rem; color:var(--text-dimmer); margin-bottom:22px;}
.price-card .amount{font-family:'JetBrains Mono',monospace; font-size:2rem; font-weight:700; margin-bottom:22px;}
.price-card .amount span{font-size:0.9rem; color:var(--text-dimmer); font-weight:400;}
.plist{list-style:none; display:flex; flex-direction:column; gap:12px; margin-bottom:28px; flex:1;}
.plist li{display:flex; gap:10px; font-size:0.88rem; color:var(--text-dim); align-items:flex-start;}
.plist svg{width:16px; height:16px; stroke:var(--green); flex:none; margin-top:2px;}
.plist li.dim{color:var(--text-dimmer);}
.plist li.dim svg{stroke:var(--text-dimmer);}

/* ---------- FAQ ---------- */
.faq-item{ border-top:1px solid var(--line); padding:22px 0; }
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{
  cursor:pointer; font-weight:600; font-size:0.98rem; list-style:none;
  display:flex; justify-content:space-between; align-items:center; gap:20px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{ content:"+"; font-family:'JetBrains Mono',monospace; font-size:1.2rem; color:var(--cyan); flex:none; }
.faq-item[open] summary::after{content:"–";}
.faq-item p{color:var(--text-dimmer); font-size:0.9rem; margin-top:12px; max-width:640px;}

/* ---------- CTA BAND ---------- */
.cta-band{
  border-radius:28px;
  background:linear-gradient(120deg, #0b1a3d, #0a2340 55%, #0b1a3d);
  border:1px solid rgba(34,211,238,0.3);
  padding:56px 36px;
  text-align:center;
  position:relative; overflow:hidden;
}
.cta-band::before{ content:""; position:absolute; inset:0; background:radial-gradient(circle at 50% 0%, rgba(34,211,238,0.25), transparent 60%); }
.cta-band > *{position:relative; z-index:1;}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2.1rem); margin-bottom:14px;}
.cta-band p{color:var(--text-dim); max-width:480px; margin:0 auto 28px;}
.cta-band .hero-ctas{justify-content:center;}

/* ---------- ARTICLE / SEO LANDING PAGES ---------- */
.breadcrumb{ font-size:0.82rem; color:var(--text-dimmer); margin-bottom:22px; }
.breadcrumb a:hover{color:var(--cyan);}
.article-hero{padding:52px 0 20px;}
.article-hero h1{ font-size:clamp(1.9rem,3.6vw,2.7rem); max-width:780px; margin-bottom:16px; }
.article-hero .lead{ font-size:1.05rem; color:var(--text-dim); max-width:680px; }
.article-body{ max-width:760px; padding:10px 0 20px; }
.article-body h2{ font-size:1.4rem; margin:44px 0 14px; }
.article-body h2:first-child{margin-top:0;}
.article-body h3{ font-size:1.1rem; margin:26px 0 10px; color:var(--text); }
.article-body p{ color:var(--text-dim); font-size:0.98rem; margin-bottom:14px; }
.article-body ul, .article-body ol{ color:var(--text-dim); font-size:0.98rem; margin:0 0 16px 22px; }
.article-body li{margin-bottom:8px;}
.article-body strong{color:var(--text);}
.tip-box{
  background:var(--bg-elev); border:1px solid var(--line); border-left:3px solid var(--cyan);
  border-radius:10px; padding:16px 20px; margin:20px 0; font-size:0.92rem; color:var(--text-dim);
}
.tip-box strong{color:var(--cyan);}
.inline-cta{
  margin:36px 0; padding:26px 28px; border-radius:16px;
  background:linear-gradient(120deg, rgba(34,211,238,0.1), rgba(59,130,246,0.06));
  border:1px solid rgba(34,211,238,0.3);
  display:flex; flex-direction:column; gap:14px;
}
@media(min-width:640px){ .inline-cta{flex-direction:row; align-items:center; justify-content:space-between;} }
.inline-cta p{margin:0; font-size:0.95rem; color:var(--text); max-width:420px;}
.related-grid{ display:grid; grid-template-columns:1fr; gap:14px; margin-top:16px; }
@media(min-width:640px){ .related-grid{grid-template-columns:1fr 1fr;} }
.related-card{ border:1px solid var(--line); border-radius:14px; padding:18px 20px; background:var(--bg-elev); }
.related-card:hover{border-color:var(--cyan);}
.related-card .rt{font-size:0.92rem; font-weight:600; margin-bottom:4px;}
.related-card .rd{font-size:0.8rem; color:var(--text-dimmer);}

/* ---------- FOOTER ---------- */
footer{border-top:1px solid var(--line); padding:48px 0 30px;}
.foot-grid{display:flex; flex-direction:column; gap:32px;}
@media(min-width:760px){ .foot-grid{flex-direction:row; justify-content:space-between;} }
.foot-brand{display:flex; align-items:center; gap:10px; font-family:'Space Grotesk',sans-serif; font-weight:700;}
.foot-brand img{width:28px; height:28px; border-radius:7px;}
.foot-tag{color:var(--text-dimmer); font-size:0.84rem; margin-top:10px; max-width:280px;}
.foot-cols{display:flex; gap:56px; flex-wrap:wrap;}
.foot-col h5{font-size:0.82rem; color:var(--text-dimmer); margin-bottom:14px; text-transform:uppercase; letter-spacing:0.04em; font-family:'JetBrains Mono',monospace; font-weight:500;}
.foot-col a{display:block; font-size:0.88rem; color:var(--text-dim); margin-bottom:10px;}
.foot-col a:hover{color:var(--cyan);}
.foot-bottom{ margin-top:44px; padding-top:24px; border-top:1px solid var(--line); display:flex; flex-direction:column; gap:10px; font-size:0.78rem; color:var(--text-dimmer); }
@media(min-width:760px){ .foot-bottom{flex-direction:row; justify-content:space-between;} }

/* reveal on scroll */
.reveal{opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease;}
.reveal.in{opacity:1; transform:translateY(0);}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1; transform:none; transition:none;}
  .btn-primary:hover{transform:none;}
}