/* czterysta4.pl – 404 Not Found → Fixed */

/* ---------- fonts (self-hosted, Space Grotesk, SIL OFL) ---------- */
@font-face{font-family:"Space Grotesk";font-style:normal;font-display:swap;font-weight:400;src:url(fonts/space-grotesk-latin-ext-400-normal.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:"Space Grotesk";font-style:normal;font-display:swap;font-weight:400;src:url(fonts/space-grotesk-latin-400-normal.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:"Space Grotesk";font-style:normal;font-display:swap;font-weight:500;src:url(fonts/space-grotesk-latin-ext-500-normal.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:"Space Grotesk";font-style:normal;font-display:swap;font-weight:500;src:url(fonts/space-grotesk-latin-500-normal.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:"Space Grotesk";font-style:normal;font-display:swap;font-weight:700;src:url(fonts/space-grotesk-latin-ext-700-normal.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:"Space Grotesk";font-style:normal;font-display:swap;font-weight:700;src:url(fonts/space-grotesk-latin-700-normal.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}

/* ---------- tokens ---------- */
:root{
  --mineral:#E8EDE9; --paper:#F7F9F7; --teal:#0E3B3D; --teal2:#145355; --ink:#102627;
  --sage:#93AFA5; --muted:#4E6765; --signal:#FF5A1F; --signal-ink:#C93D0A; --ok:#2FA36B; --line:#C9D5D0; --gold:#F2C14E;
  --gut:clamp(20px,5vw,120px); --max:1200px; --sec:clamp(64px,9vw,110px); --r:clamp(18px,2.4vw,32px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--mineral);color:var(--ink);font-family:"Space Grotesk",system-ui,sans-serif;font-size:clamp(16px,1.15vw,18px);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit}
img,svg{display:block}
ul{list-style:none}
:focus-visible{outline:3px solid var(--signal);outline-offset:3px;border-radius:6px}
.wrap{max-width:calc(var(--max) + 2*var(--gut));margin:0 auto;padding:0 var(--gut)}
.skip{position:absolute;left:-9999px;top:8px;background:var(--teal);color:#fff;padding:10px 16px;border-radius:8px;z-index:10}
.skip:focus{left:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ---------- logo (identical in every language) ---------- */
.logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none}
.logo .mk{width:46px;height:46px;flex:none;border-radius:12px;background:var(--teal);position:relative;display:grid;place-items:center;color:var(--mineral);font-weight:700;font-size:16px;letter-spacing:-.03em}
.logo .mk::after{content:"";position:absolute;right:-4px;bottom:-4px;width:14px;height:14px;border-radius:50%;background:var(--ok);border:3px solid var(--mineral)}
.logo .wm{display:flex;flex-direction:column;line-height:1}
.logo .wm b{color:var(--ink);font-size:24px;font-weight:700;letter-spacing:-.02em}
.logo .wm small{font-size:12.5px;font-weight:500;color:var(--muted);margin-top:5px}
.logo .wm s{text-decoration-color:var(--signal);text-decoration-thickness:2px}

/* ---------- nav ---------- */
.top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 0}
.top nav ul{display:flex;gap:clamp(18px,2.4vw,34px);font-weight:500;font-size:16px}
.top nav a{color:var(--muted);text-decoration:none}
.top nav a:hover{color:var(--ink)}
.right{display:flex;gap:16px;align-items:center}
.lang{font-size:14px;font-weight:500;color:var(--muted);display:flex;gap:4px}
.lang a{text-decoration:none;padding:4px 6px;border-radius:6px}
.lang a[aria-current]{color:var(--ink);font-weight:700}
.cta{background:var(--teal);color:var(--paper);padding:11px 20px;border-radius:999px;font-weight:500;font-size:16px;text-decoration:none;white-space:nowrap}
.cta:hover{background:var(--teal2)}

/* ---------- hero ---------- */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,410px);gap:clamp(32px,5vw,60px);padding:clamp(32px,5vw,64px) 0 clamp(56px,7vw,90px);align-items:end}
.code{font-size:clamp(130px,17.5vw,250px);font-weight:700;line-height:.78;letter-spacing:-.06em;color:var(--teal)}
.swap{margin-top:clamp(18px,2.2vw,30px);font-size:clamp(40px,4.5vw,64px);font-weight:500;line-height:1.05;letter-spacing:-.03em}
.swap del{color:var(--sage);text-decoration-color:var(--signal);text-decoration-thickness:.09em}
.swap span{display:block}
.lead{max-width:36em;margin-top:clamp(20px,2.2vw,30px);font-size:clamp(18px,1.5vw,21px);color:var(--muted)}
.hb{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:34px}
.btn{white-space:nowrap;display:inline-block;padding:15px 26px;border-radius:999px;font-weight:500;text-decoration:none}
.btn.p{background:var(--signal);color:#fff}
.btn.p:hover{background:var(--signal-ink)}
.btn.out{border:1.5px solid var(--ink)}
.btn.out:hover{background:var(--paper)}

.status{background:var(--paper);border-radius:22px;padding:28px;box-shadow:0 30px 60px -30px rgba(14,59,61,.35)}
.status h2{font-size:16px;font-weight:500;display:flex;justify-content:space-between;gap:12px;color:var(--muted);letter-spacing:0;max-width:none;line-height:1.4;margin-bottom:8px}
.status h2 b{color:var(--ok);font-weight:500}
.srow{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid #DDE5E1;font-size:16px}
.srow:last-of-type{border:0}
.srow em{font-style:normal;color:var(--muted);font-size:13px;margin-left:6px}
.dot{display:inline-flex;align-items:center;gap:8px;color:#23804F;font-size:14px;white-space:nowrap}
.dot::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(47,163,107,.15)}
.uptime{display:flex;gap:3px;margin-top:16px}
.uptime i{flex:1;height:28px;border-radius:3px;background:var(--ok);opacity:.85}
.uptime i.w{background:var(--signal);opacity:1}
.status small{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:13px;margin-top:8px}

/* ---------- sections ---------- */
section{padding:var(--sec) 0}
.alt{background:var(--paper)}
h2{font-size:clamp(34px,3.7vw,52px);font-weight:500;letter-spacing:-.03em;line-height:1.05;max-width:16em}
.intro{color:var(--muted);font-size:clamp(17px,1.35vw,19px);max-width:36em;margin-top:16px}

/* B.A.C.K.U.P. */
.bk-head{display:grid;grid-template-columns:auto 1fr;gap:clamp(28px,4vw,56px);align-items:end}
.acro{font-size:clamp(60px,9vw,128px);font-weight:700;letter-spacing:-.05em;line-height:.8;color:var(--teal);white-space:nowrap}
.acro span{color:var(--signal)}
.bk-head p{color:var(--muted);font-size:clamp(17px,1.35vw,19px);max-width:30em}
.bk-head p strong{color:var(--ink);font-weight:500}
.bk{margin-top:clamp(36px,4vw,56px);border-top:1.5px solid var(--ink)}
.row{display:grid;grid-template-columns:90px minmax(0,300px) minmax(0,1fr) 270px;gap:clamp(16px,2.4vw,32px);padding:26px 0;border-bottom:1px solid var(--line);align-items:baseline}
.row .L{font-size:64px;font-weight:700;line-height:.8;color:var(--teal);letter-spacing:-.04em}
.row h3{font-size:clamp(22px,1.9vw,27px);font-weight:500;letter-spacing:-.02em;line-height:1.15}
.row p{color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}
.tags li{font-size:13.5px;padding:3px 10px;border-radius:999px;background:var(--mineral);color:var(--teal2);font-weight:500}

/* sectors */
.band{background:var(--teal);color:var(--mineral);border-radius:var(--r);padding:clamp(32px,5vw,70px)}
.band h2{color:#fff}
.band .intro{color:#B5CBC3}
.bar{display:flex;gap:4px;height:clamp(40px,5vw,64px);margin-top:clamp(32px,4vw,46px)}
.bar i{min-width:10px;border-radius:10px}
.b0{background:var(--mineral)}.b1{background:var(--signal)}.b2{background:var(--sage)}.b3{background:var(--gold)}
.sect{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
.sc{border-radius:20px;padding:26px 26px 30px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.sc .tp{display:flex;align-items:center;justify-content:space-between}
.sc .sw{width:16px;height:16px;border-radius:5px}
.sc .pc{font-size:clamp(32px,2.8vw,40px);font-weight:700;letter-spacing:-.03em;color:#fff;line-height:1}
.sc h3{font-size:clamp(21px,1.7vw,24px);font-weight:500;letter-spacing:-.01em;margin:22px 0 10px;color:#fff;line-height:1.15}
.sc p{font-size:16px;color:#C6D6D0}

/* tech */
.tech{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:clamp(32px,4vw,50px)}
.t{background:var(--paper);border-radius:18px;padding:24px 22px 26px}
.t .mk{width:42px;height:42px;border-radius:12px;background:var(--mineral);display:grid;place-items:center;color:var(--teal);margin-bottom:18px}
.t h3{font-size:21px;font-weight:500;letter-spacing:-.01em;margin-bottom:8px}
.t p{font-size:15px;color:var(--muted);line-height:1.5}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);margin-top:clamp(32px,4vw,50px);position:relative}
.steps::before{content:"";position:absolute;left:0;right:0;top:21px;height:1.5px;background:var(--sage)}
.st{padding-right:32px;position:relative}
.st .n{width:44px;height:44px;border-radius:50%;background:var(--paper);border:1.5px solid var(--teal);display:grid;place-items:center;font-weight:500;color:var(--teal);margin-bottom:22px}
.st:first-child .n{background:var(--teal);color:#fff}
.st h3{font-size:clamp(20px,1.7vw,23px);font-weight:500;margin-bottom:8px}
.st p{color:var(--muted);font-size:16.5px}

/* contact */
.contact{display:grid;grid-template-columns:1.3fr 1fr;gap:20px}
.cbig{background:var(--signal);color:#fff;border-radius:var(--r);padding:clamp(32px,4.5vw,56px)}
.cbig h2{color:#fff;font-size:clamp(34px,3.9vw,56px)}
.cbig .ph{display:inline-block;font-size:clamp(32px,3.2vw,46px);font-weight:700;letter-spacing:-.02em;margin-top:40px;line-height:1;text-decoration:none}
.cbig .em{display:block;font-size:clamp(19px,1.7vw,24px);margin-top:12px;text-decoration:none;width:fit-content}
.cbig a:hover{text-decoration:underline;text-underline-offset:4px}
.cbig :focus-visible{outline-color:#fff}
.cinfo{background:var(--paper);border-radius:var(--r);padding:clamp(28px,4.5vw,56px);display:flex;flex-direction:column;justify-content:space-between;font-style:normal}
.cinfo dl{display:grid;grid-template-columns:110px 1fr;gap:14px 10px;font-size:17px}
.cinfo dt{color:var(--muted)}
.cinfo p{color:var(--muted);font-size:16px;margin-top:30px}
.foot{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:center;padding:40px 0 50px;color:var(--muted);font-size:15px}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .tech{grid-template-columns:repeat(3,1fr)}
  .row{grid-template-columns:70px minmax(0,1fr) minmax(0,1.6fr)}
  .row .tags{grid-column:2/-1;justify-content:flex-start}
  .row .L{font-size:52px}
  .sect{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:960px){
  .top nav{display:none}
  .hero{grid-template-columns:1fr}
  .status{max-width:520px}
  .bk-head{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr);gap:36px 0}
  .steps::before{display:none}
}
@media (max-width:640px){
  .top{padding:18px 0}
  .logo .mk{width:40px;height:40px;font-size:14px}
  .logo .wm b{font-size:21px}
  .cta{display:none}
  .row{grid-template-columns:52px minmax(0,1fr);gap:8px 14px;padding:22px 0}
  .row .L{font-size:44px;grid-row:span 3}
  .row p,.row .tags{grid-column:2}
  .tech{grid-template-columns:1fr 1fr;gap:10px}
  .t{padding:18px 16px 20px}
  .t p{font-size:14.5px}
  .sect{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cinfo dl{grid-template-columns:1fr;gap:2px}
  .cinfo dd{margin-bottom:12px}
  .btn{width:100%;text-align:center}
}
@media (max-width:420px){
  .tech{grid-template-columns:1fr}
  .t{display:grid;grid-template-columns:42px 1fr;gap:4px 14px;align-items:center}
  .t .mk{margin:0}
  .t p{grid-column:1/-1;margin-top:6px}
  .t h3{margin:0}
}
.nw{white-space:nowrap}

/* ---------- 404 page ---------- */
.nf{min-height:100vh;display:flex;flex-direction:column;justify-content:center;gap:28px}
.nf .code{color:var(--signal)}
.nf .swap del{text-decoration:none;color:var(--ink)}
.nf p{color:var(--muted);max-width:34em;font-size:19px}

/* h1 composed of the big 404 + swap */
h1{font:inherit}
.code,.swap{display:block}
ol{list-style:none}