/* JakiProcent.pl – style (pixel art / flat) */
:root{
 --bg:#f3eee3;--grid:#e8e1d1;--card:#fffdf7;--ink:#1d2b53;--mut:#5d5873;--line:#1d2b53;--res:#fff1e8;--in:#fff;
 --bar:#1d2b53;--bar-ink:#fff1e8;--hi:#ffec27;
 --px:"Space Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
 --sans:system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,sans-serif;
}
@media (prefers-color-scheme:dark){:root{
 --bg:#121a36;--grid:#18224a;--card:#1d2b53;--ink:#fff1e8;--mut:#c2c3c7;--line:#070b1c;--res:#15204a;--in:#121a36;
 --bar:#070b1c;--bar-ink:#fff1e8;
}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;color:var(--ink);font:16px/1.6 var(--sans);
 background-color:var(--bg);
 background-image:linear-gradient(var(--grid) 2px,transparent 2px),linear-gradient(90deg,var(--grid) 2px,transparent 2px);
 background-size:24px 24px}
a{color:inherit}
.wrap{max-width:860px;margin:0 auto;padding:0 20px}

/* pixelowa ramka: ścięte narożniki + twardy cień */
.px{background:var(--card);
 box-shadow:0 -4px 0 0 var(--line),0 4px 0 0 var(--line),-4px 0 0 0 var(--line),4px 0 0 0 var(--line),8px 8px 0 0 var(--line)}

/* nagłówek */
header.top{background:var(--bar);color:var(--bar-ink);border-bottom:4px solid var(--hi)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font:700 1.2rem/1 var(--px)}
.brand em{font-style:normal;color:var(--hi)}
.brand svg{width:30px;height:30px}
nav.menu{display:flex;gap:4px;font:400 1rem var(--px)}
nav.menu a{text-decoration:none;padding:6px 10px}
nav.menu a:hover{background:var(--hi);color:#1d2b53}

/* hero */
.hero{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:44px 0 12px}
.badge{display:inline-block;font:400 .85rem var(--px);background:#ff004d;color:#fff;padding:4px 10px;margin-bottom:14px;letter-spacing:.04em}
h1{font:700 clamp(1.75rem,4.6vw,2.7rem)/1.15 var(--px);margin:0 0 16px;letter-spacing:-.02em}
h1 .mk{background:var(--hi);color:#1d2b53;padding:0 8px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.lead{font-size:1.08rem;margin:0 0 8px}
.meta{font-size:.85rem;color:var(--mut);margin:0}
.sprite{width:168px;height:auto;image-rendering:pixelated}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 0;padding:0;list-style:none}
.chips a{display:flex;align-items:center;gap:8px;padding:7px 12px;font:400 .95rem var(--px);text-decoration:none;
 background:var(--card);border:3px solid var(--line);box-shadow:3px 3px 0 var(--line);transition:transform .08s,box-shadow .08s}
.chips a i{width:10px;height:10px;background:var(--c)}
.chips a:hover{background:var(--hi);color:#1d2b53;transform:translate(-1px,-1px);box-shadow:4px 4px 0 var(--line)}

/* kalkulatory – jeden pod drugim */
.stack{display:flex;flex-direction:column;gap:36px;margin:40px 4px 0}
.calc{padding:26px 26px 22px;scroll-margin-top:24px;margin-right:8px}
.calc:target{outline:4px dashed var(--c);outline-offset:10px}
.calc header{display:flex;align-items:center;gap:14px;margin-bottom:6px}
.ico{flex:none;display:grid;place-items:center;min-width:48px;height:48px;padding:0 8px;background:var(--c);color:var(--t,#fff);
 font:700 1.05rem var(--px);box-shadow:inset -4px -4px 0 rgba(0,0,0,.18)}
.calc h2{font:700 1.3rem/1.25 var(--px);margin:0;letter-spacing:-.01em}
.desc{margin:6px 0 18px;color:var(--mut)}
.desc code{color:var(--ink)}
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px}
.f label{display:block;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--mut);margin-bottom:6px}
.inp{position:relative}
.inp input,.f select{width:100%;height:54px;font:400 1.35rem var(--px);padding:0 14px;border:3px solid var(--line);border-radius:0;background:var(--in);color:var(--ink);appearance:none;-webkit-appearance:none}
.f select{font-size:1.15rem;cursor:pointer;
 background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);
 background-position:calc(100% - 22px) 50%,calc(100% - 15px) 50%;background-size:7px 7px;background-repeat:no-repeat}
.inp input{padding-right:46px}
.inp .u{position:absolute;right:14px;top:50%;transform:translateY(-50%);font:700 1.1rem var(--px);color:var(--mut);pointer-events:none}
input:focus,select:focus{outline:none;border-color:var(--c);box-shadow:4px 4px 0 var(--c)}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--c,#ff004d);outline-offset:2px}
input[aria-invalid=true]{border-color:#ff004d;box-shadow:4px 4px 0 #ff004d}
.res{margin-top:20px;padding:16px 18px;background:var(--res);border-left:8px solid var(--c)}
output{display:block;font:700 1.55rem/1.3 var(--px);letter-spacing:-.01em}
output.muted{font:500 1rem/1.4 var(--sans);color:var(--mut)}
.steps{list-style:none;counter-reset:s;margin:10px 0 0;padding:0;font-size:.93rem;color:var(--mut)}
.steps li{counter-increment:s;display:flex;gap:10px;align-items:baseline;margin-top:4px}
.steps li::before{content:counter(s);flex:none;display:grid;place-items:center;width:20px;height:20px;background:var(--c);color:var(--t,#fff);font:700 .75rem var(--px);transform:translateY(3px)}
.act{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}
.btn{font:400 .95rem var(--px);padding:8px 14px;background:var(--card);color:var(--ink);border:3px solid var(--line);box-shadow:3px 3px 0 var(--line);cursor:pointer;transition:transform .08s,box-shadow .08s}
.btn:hover{background:var(--hi);color:#1d2b53}
.btn:active{transform:translate(3px,3px);box-shadow:0 0 0 var(--line)}

/* treści */
.content{margin:72px 0 0}
.content>h2{display:flex;align-items:center;gap:12px;font:700 1.55rem/1.25 var(--px);margin:0 0 14px;letter-spacing:-.01em}
.content>h2::before{content:"";flex:none;width:16px;height:16px;background:var(--c,#ff004d);box-shadow:4px 4px 0 var(--line)}
.content h3{font:700 1.08rem/1.35 var(--px);margin:0 0 6px;letter-spacing:-.01em}
.box{padding:22px 24px;margin:18px 8px 8px 4px}
.box+.box{margin-top:28px}
.tbl{overflow-x:auto;margin:18px 8px 8px 4px}
table{width:100%;border-collapse:collapse;font-size:.95rem}
th,td{padding:11px 16px;text-align:left;vertical-align:top;border-bottom:2px dashed var(--grid)}
tr:last-child td{border-bottom:0}
th{background:var(--bar);color:var(--bar-ink);font:400 .95rem var(--px);letter-spacing:.03em;border:0}
td b{font-family:var(--px);font-size:1.05rem}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:var(--res);border:2px solid var(--grid);padding:1px 6px;white-space:nowrap}
.tips{margin:10px 0 0;padding:0;list-style:none}
.tips li{display:flex;gap:10px;margin-top:6px}
.tips li::before{content:"";flex:none;width:8px;height:8px;background:#00e436;transform:translateY(9px)}
.errs{display:grid;gap:28px;margin-top:18px}
.err{display:flex;gap:16px;padding:20px 22px;margin:0 8px 0 4px}
.err .ico{min-width:40px;height:40px;font-size:1.2rem}
.err p{margin:0}
details{background:var(--card);border:3px solid var(--line);box-shadow:4px 4px 0 var(--line);margin:0 4px 14px 0}
summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:14px 18px;font:700 1rem/1.4 var(--px)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";flex:none;display:grid;place-items:center;width:26px;height:26px;background:var(--hi);color:#1d2b53;font:700 1.1rem var(--px)}
details[open] summary::after{content:"−";background:#00e436}
details p{margin:0;padding:0 18px 16px}
.author{display:flex;gap:18px;align-items:flex-start}
.author svg{flex:none;width:56px;height:56px}
footer{margin-top:80px;background:var(--bar);color:var(--bar-ink);border-top:4px solid var(--hi);padding:22px 0 34px;font-size:.9rem}
footer a{text-decoration:none}footer a:hover{color:var(--hi)}
@media (max-width:640px){
 .hero{grid-template-columns:1fr;padding-top:30px}.sprite{display:none}
 .calc{padding:20px 18px 18px}.calc h2{font-size:1.12rem}.ico{min-width:42px;height:42px;font-size:.95rem}
 output{font-size:1.3rem}nav.menu{font-size:.92rem}nav.menu a{padding:4px 7px}
 .box{padding:18px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.chips a,.btn{transition:none}}

/* okruszki, nawigacja */
.crumbs{margin:24px 0 0;font:400 .88rem var(--px);color:var(--mut)}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"›";margin-right:6px}
.crumbs a{color:var(--ink);text-decoration:none}.crumbs a:hover{text-decoration:underline}
.hero.sub{padding-top:18px}
nav.menu a[aria-current]{background:var(--hi);color:#1d2b53}

/* linki w treści */
.content p a,.desc a,.def a,.err a,.box a{color:inherit;text-decoration-color:var(--c,#ff004d);text-decoration-thickness:3px;text-underline-offset:3px}
.content p a:hover,.desc a:hover,.def a:hover,.err a:hover{background:var(--hi);color:#1d2b53}
.note-small{font-size:.86rem;color:var(--mut)}

/* powiązane kalkulatory */
.related{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));margin-top:18px}
.rel{display:flex;gap:16px;align-items:center;padding:16px 18px;margin:0 8px 8px 4px;text-decoration:none;color:var(--ink)}
.rel:hover{background:var(--res)}
.rel strong{display:block;font:700 1.02rem/1.3 var(--px)}
.rel small{display:block;font-size:.88rem;line-height:1.4;color:var(--mut);margin-top:2px}

/* definicje, tabele odpowiedzi */
.def dl{margin:0;display:grid;gap:4px}
.def dt{font:700 1rem var(--px);margin-top:8px}
.def dd{margin:0}
.qa td:first-child{font-weight:600}
.qa td:last-child{color:var(--mut);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88rem}

/* księga gości */
.gb-form{margin:18px 8px 8px 4px}
.gb-head{display:flex;gap:18px;align-items:center;margin-bottom:18px}
.gb-head svg{flex:none;width:76px;height:auto}
.gb-head h3{margin:0 0 4px;font:700 1.25rem var(--px)}
.gb-head p{margin:0}
.lcd{display:inline-block;background:#0b1230;color:#00e436;font:700 1.1rem var(--px);letter-spacing:.2em;padding:1px 4px 1px 10px;border:3px solid var(--line);vertical-align:middle}
.gb-form .inp input{font:400 1.05rem var(--sans);padding-right:14px;height:50px}
.gb-msg{margin-top:14px}
textarea{width:100%;min-height:120px;font:400 1rem/1.5 var(--sans);padding:12px 14px;border:3px solid var(--line);border-radius:0;background:var(--in);color:var(--ink);resize:vertical}
textarea:focus{outline:none;border-color:var(--c);box-shadow:4px 4px 0 var(--c)}
.smileys{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.smileys button{font:700 .9rem var(--px);padding:3px 9px;background:var(--res);color:var(--ink);border:2px solid var(--line);cursor:pointer}
.smileys button:hover{background:var(--hi);color:#1d2b53}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.gb-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:18px}
.btn-main{background:var(--c);color:#fff;font-weight:700}
.btn-main:hover{background:var(--hi);color:#1d2b53}
.btn:disabled{opacity:.6;cursor:wait}
.gb-left{font-size:.85rem;color:var(--mut)}
.gb-status{min-height:1.4em;margin:12px 0 0;font:700 .95rem var(--px)}
.gb-status.ok{color:#008751}.gb-status.bad{color:#d10040}
@media (prefers-color-scheme:dark){.gb-status.ok{color:#00e436}.gb-status.bad{color:#ff6b8f}}
.gb-note{font-size:.82rem;color:var(--mut);margin:8px 0 0}
.gb-list{display:grid;gap:24px;margin:34px 0 0}
.gb-entry{margin:0 8px 0 4px}
.gb-entry header{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;background:var(--bar);color:var(--bar-ink);padding:8px 14px;font:700 .92rem var(--px)}
.gb-entry:nth-child(even) header{background:#7e2553;color:#fff}
.gb-entry .no{color:var(--hi)}
.gb-entry .when{margin-left:auto;font-weight:400;opacity:.85}
.gb-entry p{margin:0;padding:14px 16px;white-space:pre-wrap;overflow-wrap:anywhere}
.new{background:#ff004d;color:#fff;padding:0 6px;font-size:.72rem;animation:blink 1.2s steps(2,start) infinite}
@keyframes blink{to{visibility:hidden}}
.gb-empty{margin:0;padding:18px;border:3px dashed var(--line);text-align:center;color:var(--mut);font-family:var(--px)}
#gb-more{margin-top:24px}
.gb-page{margin-top:36px}
.gb-teaser{max-width:560px}
.gb-teaser svg{flex:none;width:56px;height:auto}

/* stopka */
footer .wrap{display:block}
.fcols{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.fcols p{margin:6px 0 0;max-width:320px;opacity:.85}
.fbrand{font:700 1.1rem var(--px);color:var(--hi)}
footer nav{display:flex;flex-direction:column;gap:6px;font-family:var(--px)}
.copy{font-family:var(--px);margin:22px 0 0;opacity:.75}

@media (max-width:640px){.gb-head svg{width:56px}.gb-entry .when{margin-left:0}}
@media (prefers-reduced-motion:reduce){.new{animation:none}}