/* =====================================================================
   4crypto.eu - warstwa wspolna
   Tokeny, fonty, reset i chrome (nawigacja, stopka, przyciski,
   przelacznik jezyka, tooltipy). Laduja to WSZYSTKIE strony serwisu.
   Specyfika stron: assets/home.css i assets/article-style.css.
   ===================================================================== */

/* Fonty hostowane lokalnie - swiadoma decyzja RODO. Nie podmieniaj na CDN.
   Sciezki sa wzgledne wobec TEGO pliku, wiec dzialaja z kazdej glebokosci. */
@font-face{font-family:'Outfit';font-style:normal;font-weight:400 900;font-display:block;src:url(../fonts/outfit-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Outfit';font-style:normal;font-weight:400 900;font-display:block;src:url(../fonts/outfit-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'DM Sans';font-style:normal;font-weight:400 700;font-display:block;src:url(../fonts/dm-sans-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'DM Sans';font-style:normal;font-weight:400 700;font-display:block;src:url(../fonts/dm-sans-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400 600;font-display:block;src:url(../fonts/jetbrains-mono-latin-ext.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400 600;font-display:block;src:url(../fonts/jetbrains-mono-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
/* Jedyne zrodlo tokenow dla calego serwisu. Do 2026-08-25 istnialo szesc
   niezaleznych kopii tego bloku, rozjechanych na 14 wartosciach. */
:root{
  --bg-deep:#050810; --bg:#050810; --bg-mid:#0a0f1c;
  --bg-card:#0d1220; --bg-card-soft:rgba(8,12,22,0.55); --bg-card-hover:#111827;
  --surface:rgba(255,255,255,0.03);
  --border:rgba(16,185,129,0.08); --border-hover:rgba(16,185,129,0.22); --border-strong:rgba(16,185,129,0.35);
  --accent:#10b981; --accent-light:#34d399; --accent-dark:#059669;
  --accent-bg:rgba(16,185,129,0.08); --accent-glow:rgba(16,185,129,0.15); --accent-glow-strong:rgba(16,185,129,0.35);
  --text:#f1f5f9; --light:#f1f5f9; --text-dim:#94a3b8; --text-muted:#64748b;
  --red:#ef4444; --orange:#f59e0b; --blue:#3b82f6;
  --radius-xs:6px; --radius-sm:10px; --radius:16px; --radius-lg:24px;
  --font-head:'Outfit',system-ui,-apple-system,sans-serif;
  --font-body:'DM Sans',system-ui,-apple-system,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,Consolas,monospace;
  --maxw:1200px; --shadow-glow:0 0 60px rgba(16,185,129,0.18);
}

/* ---------- reset i chrome ---------- */



*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:var(--font-body);
  background:var(--bg-deep);
  color:var(--text);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  min-height:100vh;
  transition:opacity 180ms ease;
}

body.lang-fading{opacity:0.25}
@media (prefers-reduced-motion:reduce){

  body{transition:none}

  body.lang-fading{opacity:1}
}

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



.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}



.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(5,8,16,0.78);
  backdrop-filter:blur(20px) saturate(1.4);
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  border-bottom:1px solid var(--border);
}

.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;
}

.brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-head);font-weight:800;font-size:1.25rem;
  color:var(--text);
}

.brand-mark{
  width:34px;height:34px;border-radius:8px;
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  display:grid;place-items:center;color:#03110b;font-weight:900;
  box-shadow:0 0 24px var(--accent-glow);
}

.brand-mark svg{width:20px;height:20px}

.brand b{color:var(--accent)}

.nav-links{display:flex;gap:6px;align-items:center}

.nav-links a{
  padding:8px 14px;border-radius:8px;font-size:0.92rem;
  color:var(--text-dim);font-weight:500;transition:all .2s;
}

.nav-links a:hover{color:var(--text);background:var(--surface)}

.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:var(--radius-sm);
  background:var(--accent);color:#03110b !important;
  font-weight:700;font-size:0.92rem;
  box-shadow:0 1px 0 inset rgba(255,255,255,0.2),0 8px 24px -8px var(--accent-glow-strong);
  transition:all .2s;
}

.nav-cta:hover{background:var(--accent-light);transform:translateY(-1px)}

.cta-arrow{animation:nudge 1.8s ease-in-out infinite}

.nav-cta:hover .cta-arrow{animation:none;transform:translateX(3px)}


.nav-drop{position:relative}

.nav-drop-btn{
  display:inline-flex;align-items:center;gap:6px;
  cursor:pointer;user-select:none;
  background:none;border:none;font-family:inherit;
  padding:8px 14px;border-radius:8px;font-size:0.92rem;
  color:var(--text-dim);font-weight:500;transition:all .2s;
}

.nav-drop:hover .nav-drop-btn,.nav-drop:focus-within .nav-drop-btn{color:var(--text);background:var(--surface)}

.nav-drop-btn .caret{width:13px;height:13px;transition:transform .2s}

.nav-drop:hover .nav-drop-btn .caret,.nav-drop:focus-within .nav-drop-btn .caret{transform:rotate(180deg)}

.nav-drop-menu{
  display:none;
  position:absolute;top:calc(100% + 8px);left:0;z-index:60;
  min-width:236px;padding:6px;
  background:var(--bg-card);border:1px solid var(--border-hover);
  border-radius:var(--radius-sm);box-shadow:0 18px 40px -12px rgba(0,0,0,0.7);
}


.nav-drop-menu::before{content:"";position:absolute;left:0;right:0;top:-8px;height:8px}

.nav-drop:hover .nav-drop-menu,.nav-drop:focus-within .nav-drop-menu{display:block}

.nav-drop-menu a{display:block;padding:9px 12px;border-radius:var(--radius-xs);white-space:nowrap}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;
  border:1px solid var(--border-strong);
  background:rgba(16,185,129,0.06);
  border-radius:999px;
  font-family:var(--font-mono);font-size:0.78rem;
  color:var(--accent-light);font-weight:500;
  margin-bottom:28px;
}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:var(--radius-sm);
  font-weight:700;font-size:0.97rem;font-family:var(--font-body);
  transition:all .2s;
  border:1px solid transparent;
}

.btn-primary{
  background:var(--accent);color:#03110b;
  box-shadow:0 1px 0 inset rgba(255,255,255,0.2),0 12px 32px -10px var(--accent-glow-strong);
}

.btn-primary:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 1px 0 inset rgba(255,255,255,0.25),0 18px 40px -10px var(--accent-glow-strong)}



footer{
  margin-top:80px;
  border-top:1px solid var(--border);
  padding:60px 0 30px;
  background:rgba(5,8,16,0.6);
}

.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  margin-bottom:50px;
}

.footer-brand p{color:var(--text-muted);font-size:0.9rem;margin-top:14px;line-height:1.7}

.footer-col h4{
  font-size:0.82rem;text-transform:uppercase;letter-spacing:0.1em;
  color:var(--text);margin-bottom:18px;font-weight:700;
}

.footer-col ul{list-style:none;display:grid;gap:10px}

.footer-col a{color:var(--text-dim);font-size:0.92rem;transition:color .2s}

.footer-col a:hover{color:var(--accent-light)}

.footer-col .ic{display:inline-flex;align-items:center;gap:8px}

.footer-col svg{width:14px;height:14px;color:var(--accent)}

.footer-bottom{
  padding-top:30px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
  font-size:0.84rem;color:var(--text-muted);
}

.footer-bottom .legal{display:flex;gap:18px}



.link-inline{color:inherit;text-decoration:none;transition:color .2s}

.link-inline:hover{color:var(--accent-light)}



.tip{position:relative;cursor:help}

.tip::after{
  content:attr(data-tip);
  position:absolute;bottom:calc(100% + 10px);left:50%;transform:translateX(-50%) scale(0.95);
  background:var(--bg-card-hover);color:var(--text);
  border:1px solid var(--border-hover);border-radius:10px;
  padding:10px 14px;font-size:0.78rem;font-weight:400;font-family:var(--font-body);
  line-height:1.5;width:260px;text-align:left;
  box-shadow:0 12px 32px rgba(0,0,0,0.4);
  opacity:0;pointer-events:none;
  transition:opacity .2s,transform .2s;z-index:10;
}

.tip:hover::after{opacity:1;transform:translateX(-50%) scale(1)}

.tip-right::after{left:0;transform:translateX(0) scale(0.95)}

.tip-right:hover::after{transform:translateX(0) scale(1)}

.tip-wide::after{width:340px}
@media (max-width:520px){
.tip-wide::after{width:260px}
}
@media (max-width:980px){

  .nav-links,.nav-cta{display:none}

  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:620px){

  .container{padding:0 18px}

  .footer-grid{grid-template-columns:1fr}
}



.lang-switcher{
  display:flex;align-items:center;gap:3px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border);
  border-radius:999px;
  padding:3px;
  flex-shrink:0;
}

.lang-btn{
  display:flex;align-items:center;gap:4px;
  background:none;border:none;cursor:pointer;
  padding:4px 9px;border-radius:999px;
  font-family:var(--font-head);font-size:0.72rem;font-weight:700;
  letter-spacing:0.04em;color:var(--text-muted);
  transition:all .2s;line-height:1;
}

.lang-btn .flag{display:inline-flex;align-items:center;line-height:0}

.lang-btn .flag svg{display:block;width:22px;height:auto;border-radius:2px;box-shadow:0 0 0 1px rgba(255,255,255,0.12)}

.lang-btn:hover{color:var(--text);background:rgba(255,255,255,0.07)}

.lang-btn.active{background:rgba(16,185,129,0.15);color:var(--accent-light)}