/* Cyfrowy Przyjaciel — styl wg zasad Apple Design: typografia optyczna, materiały, ruch sprężynowy */
:root{
  color-scheme:light dark;
  --bg:#fff; --bg2:#f5f5f7; --fg:#1d1d1f; --muted:#6e6e73; --line:rgba(0,0,0,.1);
  --accent:#0874d1; --accent-fg:#fff; --accent-soft:rgba(8,116,209,.1);
  --glass:rgba(255,255,255,.66); --glass-edge:rgba(255,255,255,.55);
  --shadow:0 1px 2px rgba(0,0,0,.05),0 8px 30px rgba(0,0,0,.08);
  --shadow-lg:0 2px 6px rgba(0,0,0,.06),0 24px 60px rgba(0,0,0,.14);
  --r:1.25rem; --r-sm:.75rem; --max:70rem; --nav:3.5rem;
  --ease:cubic-bezier(.2,.8,.2,1);
}
@media (prefers-color-scheme:dark){
  :root{--bg:#000;--bg2:#111113;--fg:#f5f5f7;--muted:#a1a1a6;--line:rgba(255,255,255,.14);
    --accent:#4aa3ff;--accent-fg:#001a33;--accent-soft:rgba(74,163,255,.16);
    --glass:rgba(22,22,24,.62);--glass-edge:rgba(255,255,255,.12);
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 30px rgba(0,0,0,.5);--shadow-lg:0 24px 60px rgba(0,0,0,.7)}
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--nav) + 1rem)}
body{margin:0;background:var(--bg);color:var(--fg);
  font:400 1.0625rem/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-optical-sizing:auto;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:.2em}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:.4rem}
.skip{position:absolute;left:1rem;top:-4rem;background:var(--accent);color:var(--accent-fg);padding:.6rem 1rem;border-radius:.6rem;z-index:100}
.skip:focus{top:1rem}
.wrap{width:min(100% - 2.5rem,var(--max));margin-inline:auto}
.narrow{width:min(100% - 2.5rem,46rem);margin-inline:auto}

/* typografia: tracking i leading zależne od rozmiaru */
h1,h2,h3{margin:0;font-weight:700;text-wrap:balance}
h1{font-size:clamp(2.5rem,7.2vw,5rem);line-height:1.03;letter-spacing:-.03em}
h2{font-size:clamp(1.9rem,4.4vw,3rem);line-height:1.08;letter-spacing:-.025em}
h3{font-size:1.3rem;line-height:1.25;letter-spacing:-.012em;font-weight:650}
p{margin:0 0 1em;text-wrap:pretty}
.lead{font-size:clamp(1.15rem,2.2vw,1.5rem);line-height:1.4;letter-spacing:-.01em;color:var(--muted);font-weight:400}
.eyebrow{font-size:.8125rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin-bottom:.8rem}
small,.small{font-size:.875rem;letter-spacing:.005em}
.muted{color:var(--muted)}

/* materiał: pływający pasek nawigacji, treść przewija się pod spodem */
.nav{position:sticky;top:0;z-index:50;height:var(--nav);display:flex;align-items:center;
  background:var(--glass);-webkit-backdrop-filter:saturate(180%) blur(22px);backdrop-filter:saturate(180%) blur(22px);
  border-bottom:1px solid var(--glass-edge);box-shadow:0 1px 0 var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:.65rem;color:var(--fg);font-weight:650;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand .logo{width:2rem;height:2rem;border-radius:.6rem;background:var(--accent);color:var(--accent-fg);display:grid;place-items:center;font-size:.8rem;font-weight:800;letter-spacing:.02em}
.menu{display:none;gap:.15rem;align-items:center}
.menu a{color:var(--fg);padding:.45rem .75rem;border-radius:999px;font-size:.9375rem;transition:background-color .15s}
.menu a:hover{background:var(--accent-soft);text-decoration:none}
.menu a[aria-current="page"]{color:var(--accent);font-weight:600}
.burger{width:2.75rem;height:2.75rem;border:0;background:transparent;color:var(--fg);border-radius:999px;display:grid;place-items:center;cursor:pointer;touch-action:manipulation}
.burger:active{background:var(--accent-soft);transform:scale(.94);transition:transform 100ms ease-out}
.burger svg{width:1.4rem;height:1.4rem}
@media(min-width:62rem){.menu{display:flex}.burger{display:none}}

/* arkusz menu mobilnego — sterowany JS (sprężyna, przeciąganie, projekcja pędu) */
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.4);opacity:0;pointer-events:none;z-index:60}
.scrim.on{pointer-events:auto}
.sheet{position:fixed;top:0;right:0;bottom:0;width:min(86vw,22.5rem);z-index:70;transform:translate3d(100%,0,0);
  background:var(--glass);-webkit-backdrop-filter:saturate(180%) blur(30px);backdrop-filter:saturate(180%) blur(30px);
  border-left:1px solid var(--glass-edge);box-shadow:var(--shadow-lg);padding:1rem 1.25rem 2rem;display:flex;flex-direction:column;
  touch-action:pan-y;will-change:transform;visibility:hidden}
.sheet.vis{visibility:visible}
.sheet header{display:flex;justify-content:flex-end;margin-bottom:.5rem}
.sheet nav a{display:block;color:var(--fg);font-size:1.4rem;font-weight:600;letter-spacing:-.015em;padding:.8rem .25rem;border-bottom:1px solid var(--line)}
.sheet nav a:active{background:var(--accent-soft)}
.sheet nav a[aria-current="page"]{color:var(--accent)}
body.lock{overflow:hidden}

/* przyciski: natychmiastowa reakcja na dotyk */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:3rem;padding:.7rem 1.4rem;border-radius:999px;
  font:600 1rem/1 inherit;font-family:inherit;border:0;cursor:pointer;touch-action:manipulation;transition:transform 100ms ease-out,filter .15s,background-color .15s}
.btn:active{transform:scale(.97)}
.btn:hover{text-decoration:none;filter:brightness(1.06)}
.btn-primary{background:var(--accent);color:var(--accent-fg)}
.btn-ghost{background:var(--accent-soft);color:var(--accent)}
.btn-sm{min-height:2.5rem;padding:.55rem 1.1rem;font-size:.9375rem}
.btns{display:flex;flex-wrap:wrap;gap:.75rem}

/* sekcje */
section{padding:clamp(3.5rem,9vw,7rem) 0}
.alt{background:var(--bg2)}
.hero{padding:clamp(3rem,9vw,7rem) 0 clamp(2.5rem,6vw,5rem);text-align:center;position:relative;overflow:clip}
.hero .lead{max-width:36rem;margin:1.25rem auto 2rem}
.hero .btns{justify-content:center}
.hero::before{content:"";position:absolute;inset:-20% -10% auto;height:70%;z-index:-1;
  background:radial-gradient(60% 60% at 50% 0%,var(--accent-soft),transparent 70%)}
.avatar{width:7.5rem;height:7.5rem;border-radius:50%;margin:0 auto 1.75rem;overflow:hidden;background:var(--accent);color:var(--accent-fg);
  display:grid;place-items:center;font-size:2.4rem;font-weight:800;box-shadow:var(--shadow-lg);position:relative}
.avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.stats{display:flex;justify-content:center;flex-wrap:wrap;gap:1rem 3rem;margin-top:3rem}
.stat b{display:block;font-size:clamp(2rem,5vw,3rem);letter-spacing:-.03em;line-height:1}
.stat span{color:var(--muted);font-size:.9375rem}
.head{max-width:40rem;margin-bottom:2.5rem}
.head.center{margin-inline:auto;text-align:center}

.grid{display:grid;gap:1rem}
@media(min-width:44rem){.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}}
@media(min-width:44rem) and (max-width:62rem){.g3.fit{grid-template-columns:repeat(2,1fr)}}
.card{background:var(--bg);border-radius:var(--r);padding:1.75rem;box-shadow:var(--shadow);border:1px solid var(--line);display:flex;flex-direction:column;gap:.6rem}
.alt .card{background:var(--bg)}
.card p{color:var(--muted);margin:0}
.card .ico{width:2.75rem;height:2.75rem;border-radius:.8rem;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;margin-bottom:.4rem}
.card .ico svg{width:1.4rem;height:1.4rem}
.card .btns{margin-top:auto;padding-top:.8rem}
.tag{display:inline-block;font-size:.75rem;font-weight:600;letter-spacing:.03em;padding:.2rem .6rem;border-radius:999px;background:var(--accent-soft);color:var(--accent)}
.list{list-style:none;padding:0;margin:0;display:grid;gap:.6rem}
.list li{padding-left:1.7rem;position:relative}
.list li::before{content:"";position:absolute;left:0;top:.55em;width:.9rem;height:.9rem;border-radius:50%;background:var(--accent-soft);box-shadow:inset 0 0 0 .28rem var(--accent)}

.contact{display:grid;gap:1rem}
.contact a.row{display:flex;gap:1rem;align-items:center;padding:1.1rem 1.25rem;border-radius:var(--r-sm);background:var(--bg);border:1px solid var(--line);color:var(--fg);min-height:3.5rem;transition:transform 100ms ease-out}
.contact a.row:active{transform:scale(.985)}
.contact a.row:hover{text-decoration:none;border-color:var(--accent)}
.contact .row small{display:block;color:var(--muted)}
.contact .row b{font-weight:600}

/* strony treści */
.page-head{padding:clamp(2.5rem,7vw,5rem) 0 1.5rem}
.page-head .lead{max-width:38rem;margin-top:1rem}
.crumbs{font-size:.875rem;color:var(--muted);margin-bottom:1.2rem}
.prose h2{font-size:clamp(1.5rem,3vw,2rem);margin:2.4rem 0 .8rem}
.prose ul,.prose ol{padding-left:1.3rem}
.prose li{margin:.4rem 0}
.codebox{position:relative;background:var(--bg2);border:1px solid var(--line);border-radius:var(--r-sm);margin:1.2rem 0}
.codebox pre{margin:0;padding:1.2rem 1.25rem;overflow-x:auto;font:.9rem/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre-wrap;word-break:break-word}
.codebox .btn{position:absolute;top:.6rem;right:.6rem}
.codebox pre{padding-top:3.4rem}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;gap:.9rem}
.steps li{counter-increment:s;display:flex;gap:1rem;align-items:flex-start;margin:0}
.steps li::before{content:counter(s);flex:none;width:2rem;height:2rem;border-radius:50%;background:var(--accent);color:var(--accent-fg);display:grid;place-items:center;font-weight:700;font-size:.9rem}

/* biblioteka promptów */
.tools{position:sticky;top:var(--nav);z-index:20;padding:.8rem 0;background:var(--glass);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line)}
.tools .wrap{display:grid;gap:.7rem}
@media(min-width:44rem){.tools .wrap{grid-template-columns:1fr 14rem}}
.field,select,input[type=search],textarea,input[type=text]{width:100%;font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);padding:.75rem 1rem;min-height:3rem}
.field:focus,select:focus,textarea:focus,input:focus{outline:3px solid var(--accent);outline-offset:1px;border-color:transparent}
textarea{resize:vertical;min-height:5.5rem}
label{font-weight:600;font-size:.9375rem;display:block;margin-bottom:.35rem}
.chips{display:flex;gap:.5rem;overflow-x:auto;padding:.2rem 0 .1rem;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;border:1px solid var(--line);background:var(--bg);color:var(--fg);border-radius:999px;padding:.5rem 1rem;font:inherit;font-size:.9rem;cursor:pointer;min-height:2.5rem;touch-action:manipulation;transition:transform 100ms ease-out}
.chip:active{transform:scale(.95)}
.chip[aria-pressed="true"]{background:var(--accent);color:var(--accent-fg);border-color:transparent}
.pgrid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(min(100%,21rem),1fr));margin-top:1.5rem}
.pcard{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:1.4rem;display:flex;flex-direction:column;gap:.7rem;box-shadow:var(--shadow)}
.pcard h3{font-size:1.1rem}
.pcard .meta{display:flex;gap:.4rem;flex-wrap:wrap}
.pcard .body{color:var(--muted);font-size:.95rem;white-space:pre-wrap;display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden}
.pcard.open .body{display:block;-webkit-line-clamp:unset}
.pcard .fields{display:grid;gap:.6rem}
.pcard .acts{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:auto}
.counter{font-size:.9rem;color:var(--muted)}
.builder{display:grid;gap:1rem}
@media(min-width:44rem){.builder{grid-template-columns:repeat(2,1fr)}.builder .full{grid-column:1/-1}}
.empty{padding:3rem 0;text-align:center;color:var(--muted)}

footer{padding:3rem 0 4rem;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;background:var(--bg2)}
footer .cols{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1.5rem}
footer a{color:var(--muted)}
footer a:hover{color:var(--accent)}
footer nav{display:flex;flex-wrap:wrap;gap:.4rem 1.2rem}

.toast{position:fixed;left:50%;bottom:max(1.25rem,env(safe-area-inset-bottom));transform:translate(-50%,1rem);opacity:0;z-index:90;
  background:var(--glass);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);
  border:1px solid var(--glass-edge);box-shadow:var(--shadow-lg);padding:.8rem 1.3rem;border-radius:999px;font-weight:600;pointer-events:none;max-width:90vw;text-align:center}

/* pojawianie się sekcji */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* preferencje dostępności */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{transform:none;transition:opacity .25s ease}
  .btn:active,.chip:active,.burger:active,.contact a.row:active{transform:none}
  .toast{transition:opacity .2s ease!important}
}
@media(prefers-reduced-transparency:reduce){
  .nav,.sheet,.tools,.toast{-webkit-backdrop-filter:none;backdrop-filter:none;background:var(--bg)}
}
@media(prefers-contrast:more){
  :root{--line:currentColor;--muted:var(--fg)}
  .card,.pcard{border-width:2px}
}
@media print{.nav,.sheet,.scrim,.tools,.toast{display:none!important}}

/* kody ChatGPT */
.kgrid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(min(100%,16.5rem),1fr));margin-top:1.5rem}
.kcard{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:1.25rem;display:flex;flex-direction:column;gap:.7rem;box-shadow:var(--shadow)}
.kcode{display:block;font:600 1.15rem/1.3 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--bg2);border:1px solid var(--line);border-radius:var(--r-sm);padding:.7rem .9rem;overflow-wrap:anywhere;user-select:all}
.kdesc{margin:0;color:var(--muted);font-size:.95rem;flex:1}
.kcard .meta{display:flex;gap:.4rem;flex-wrap:wrap}
.kcard .btn{width:100%}

/* sklep — banery produktów */
.promo{display:grid;gap:1.75rem;align-items:center}
@media(min-width:62rem){.promo{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:3rem}.promo.flip{grid-template-columns:minmax(0,1fr) minmax(0,1.35fr)}.promo.flip .promo-img{order:2}}
.promo-img{display:block;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--line);transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.promo-img img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.promo-img:hover{transform:translateY(-4px)}
.promo-body h2{margin-bottom:.8rem}
.promo-body .list{margin:1.2rem 0 1.6rem}
.promo-body .small{margin:.9rem 0 0}
@media(prefers-reduced-motion:reduce){.promo-img:hover{transform:none}}