/* ==========================================================================
   kalkulator-sportu.pl — system projektowy
   Estetyka: "laboratorium sportowe / chronograf cyfrowy"
   Mobile-first, jednostki viewport, bez zależności zewnętrznych
   ========================================================================== */

:root{
  /* paleta */
  --canvas:#F3F5FA;
  --surface:#FFFFFF;
  --ink:#131A30;          /* granat atramentowy */
  --ink-soft:#2A3350;
  --muted:#606B85;
  --line:#E5E9F3;
  --line-strong:#D3DAEA;
  --brand:#2E40E6;        /* kobalt */
  --brand-dark:#1F2DB0;
  --brand-tint:#EAEDFE;
  --pulse:#FF4B3E;        /* czerwień tętna — akcent energii */
  --pulse-dark:#E23022;
  --pulse-tint:#FFEDEB;
  --good:#0E9F6E;
  --good-tint:#E3F7EF;
  --warn:#D98300;
  --warn-tint:#FFF3DF;
  --bad:#D92D20;
  --bad-tint:#FDECEA;

  /* typografia */
  --display:'Space Grotesk',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono','SFMono-Regular',Consolas,monospace;

  /* skala */
  --r-sm:8px; --r:14px; --r-lg:22px; --r-pill:999px;
  --sp:clamp(16px,4vw,24px);
  --maxw:1120px;
  --shadow-sm:0 1px 2px rgba(19,26,48,.06),0 2px 8px rgba(19,26,48,.05);
  --shadow:0 8px 28px rgba(19,26,48,.10);
  --shadow-lg:0 18px 50px rgba(19,26,48,.16);
  --ring:0 0 0 3px rgba(46,64,230,.28);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}}

body{
  font-family:var(--body);
  background:var(--canvas);
  color:var(--ink);
  line-height:1.62;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* ---------- układ ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--sp)}
.section{padding-block:clamp(40px,7vw,72px)}
.section--tight{padding-block:clamp(28px,5vw,44px)}

/* ---------- typografia ---------- */
h1,h2,h3,h4,h5,h6{font-family:var(--display);line-height:1.15;color:var(--ink);font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(1.9rem,6.4vw,3.2rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,4.6vw,2.15rem);margin-bottom:.5em}
h3{font-size:clamp(1.18rem,3.4vw,1.45rem);margin-bottom:.35em}
h4{font-size:1.06rem;margin-bottom:.3em}
h5{font-size:.95rem;font-weight:600}
h6{font-size:.84rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
p{margin-bottom:1rem;color:var(--ink-soft)}
.lead{font-size:clamp(1.04rem,2.4vw,1.18rem);color:var(--ink-soft)}
.muted{color:var(--muted)}
strong{color:var(--ink);font-weight:600}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;color:var(--pulse);font-weight:700;display:inline-flex;gap:.5em;align-items:center}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--pulse);display:inline-block}
.sec-head{margin-bottom:clamp(18px,3vw,28px);max-width:64ch}
.sec-head h2{margin:.35em 0 0}
.sec-head .eyebrow{margin-bottom:2px}
.hero-trust{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:9px}
.hero-trust li{display:flex;gap:9px;align-items:flex-start;font-size:.95rem;color:var(--ink-soft)}
.hero-trust li svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto;margin-top:2px}

ul,ol{margin:0 0 1rem 1.2rem;color:var(--ink-soft)}
li{margin-bottom:.45rem}
.section ul li::marker{color:var(--brand)}

/* ---------- topbar / pasek reklamowy (slot) ---------- */
.adslot{
  border:1px dashed var(--line-strong);
  background:repeating-linear-gradient(45deg,#fff,#fff 10px,#fafbff 10px,#fafbff 20px);
  border-radius:var(--r);
  min-height:90px;
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:.78rem;font-family:var(--mono);letter-spacing:.08em;
  text-align:center;padding:14px;
}
.adslot[data-fmt="leaderboard"]{min-height:90px}
.adslot[data-fmt="rect"]{min-height:250px}
.adslot[data-fmt="sidebar"]{min-height:600px}
.ad-rail{margin-block:clamp(20px,4vw,32px)}

/* ==========================================================================
   HEADER (czysty HTML/CSS — menu mobilne na checkbox, bez JS)
   ========================================================================== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;
  font-size:1.12rem;color:var(--ink);letter-spacing:-.02em;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand .mark{width:34px;height:34px;border-radius:9px;background:var(--ink);position:relative;flex-shrink:0;
  display:grid;place-items:center;overflow:hidden}
.brand .mark svg{width:22px;height:22px}
.brand b{color:var(--pulse)}

.nav-toggle{display:none}
.nav-burger{margin-left:auto;display:inline-flex;flex-direction:column;gap:5px;cursor:pointer;
  padding:10px;border-radius:10px;border:1px solid var(--line);background:#fff}
.nav-burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav-links a{padding:9px 13px;border-radius:10px;color:var(--ink-soft);font-weight:500;font-size:.93rem}
.nav-links a:hover{background:var(--brand-tint);color:var(--brand);text-decoration:none}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-cta{background:var(--ink);color:#fff!important;padding:9px 16px!important;border-radius:var(--r-pill)!important}
.nav-cta:hover{background:var(--brand-dark)!important}

@media (max-width:880px){
  .nav-burger{display:inline-flex}
  .nav-links{position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);padding:12px var(--sp) 18px;
    transform:translateY(-130%);transition:transform .3s ease;box-shadow:var(--shadow);max-height:calc(100vh - 64px);overflow:auto}
  .nav-links a{padding:13px 14px;border-radius:12px;font-size:1rem}
  .nav-toggle:checked ~ .nav-links{transform:translateY(0)}
  .nav-toggle:checked ~ .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle:checked ~ .nav-burger span:nth-child(2){opacity:0}
  .nav-toggle:checked ~ .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-cta{margin-top:6px;text-align:center}
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{position:relative;padding-top:clamp(28px,6vw,52px);padding-bottom:clamp(20px,4vw,32px);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background:
   radial-gradient(60vw 40vw at 85% -10%,rgba(46,64,230,.10),transparent 60%),
   radial-gradient(50vw 36vw at 0% 10%,rgba(255,75,62,.07),transparent 55%);}
.hero-grid{display:grid;gap:clamp(24px,4vw,40px)}
.hero-copy h1{margin-bottom:.4em}
.hero-copy .lead{max-width:48ch}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:7px 13px;font-size:.82rem;font-weight:500;color:var(--ink-soft);box-shadow:var(--shadow-sm)}
.badge svg{width:15px;height:15px;color:var(--good)}

@media (min-width:920px){
  .hero-grid{grid-template-columns:1fr 1.05fr;align-items:start}
}
@media (max-width:919px){
  /* Mobile-first: kalkulator w pierwszym ekranie (input na środku) */
  .hero-grid{display:flex;flex-direction:column}
  .hero-grid>.calc{order:-1}
  .hero-copy{margin-top:4px}
}

/* ==========================================================================
   KALKULATOR — karta + panel wyników
   ========================================================================== */
.calc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);overflow:hidden}
.calc-head{display:flex;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#fbfcff,#fff)}
.calc-head .dot{width:10px;height:10px;border-radius:50%;background:var(--pulse);
  box-shadow:0 0 0 4px var(--pulse-tint);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px var(--pulse-tint)}50%{box-shadow:0 0 0 7px rgba(255,75,62,.10)}}
.calc-head h2,.calc-head h3{font-size:1.05rem;margin:0}
.calc-body{padding:20px}

.field{margin-bottom:15px}
.field > label{display:block;font-size:.86rem;font-weight:600;color:var(--ink);margin-bottom:6px}
.field .hint{font-size:.76rem;color:var(--muted);font-weight:400}
.control{width:100%;font-family:var(--body);font-size:1rem;color:var(--ink);background:#fff;
  border:1.5px solid var(--line-strong);border-radius:var(--r);padding:12px 14px;transition:border-color .15s,box-shadow .15s}
.control:focus{outline:none;border-color:var(--brand);box-shadow:var(--ring)}
select.control{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%23606B85' stroke-width='2'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.time-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
.time-row .control{text-align:center;font-family:var(--mono);font-weight:500}

/* segmenty (radio jako przyciski) */
.seg{display:inline-flex;background:var(--canvas);border:1px solid var(--line);border-radius:var(--r-pill);padding:4px;gap:2px;flex-wrap:wrap}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg label{cursor:pointer;padding:8px 16px;border-radius:var(--r-pill);font-size:.9rem;font-weight:600;color:var(--muted);transition:.15s}
.seg input:checked + label{background:var(--ink);color:#fff;box-shadow:var(--shadow-sm)}
.seg.seg--pulse input:checked + label{background:var(--pulse)}

.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{cursor:pointer;border:1px solid var(--line-strong);background:#fff;border-radius:var(--r-pill);
  padding:7px 13px;font-size:.85rem;font-weight:600;color:var(--ink-soft);transition:.15s}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip[aria-pressed="true"]{background:var(--brand);border-color:var(--brand);color:#fff}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  font-family:var(--display);font-weight:600;font-size:1rem;border:none;border-radius:var(--r);
  padding:14px 20px;transition:transform .12s,box-shadow .2s,background .15s;text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--pulse);color:#fff;box-shadow:0 6px 18px rgba(255,75,62,.30)}
.btn-primary:hover{background:var(--pulse-dark);text-decoration:none}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:var(--brand-dark);text-decoration:none}
.btn-ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}
.btn-block{width:100%}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:4px}
.btn-row .btn{flex:1;min-width:130px}
.btn-sm{padding:9px 14px;font-size:.86rem;border-radius:10px}

/* ---------- panel wyników ---------- */
.results{margin-top:18px;border-top:1px dashed var(--line-strong);padding-top:18px;display:none}
.results.show{display:block;animation:rise .35s ease}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

.result-hero{background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:22px;text-align:center;position:relative;overflow:hidden}
.result-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(40% 60% at 80% 0%,rgba(255,75,62,.25),transparent 70%);pointer-events:none}
.result-hero .label{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;opacity:.7}
.result-hero .big{font-family:var(--mono);font-weight:700;font-size:clamp(2.4rem,9vw,3.6rem);line-height:1;margin:.15em 0;color:#fff}
.result-hero .big small{font-size:.36em;opacity:.65;font-weight:500;letter-spacing:.02em}
.result-hero .sub{font-size:.92rem;opacity:.85}

.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:14px}
.stat{background:var(--canvas);border:1px solid var(--line);border-radius:var(--r);padding:13px 14px}
.stat .k{font-size:.74rem;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.stat .v{font-family:var(--mono);font-size:1.3rem;font-weight:700;color:var(--ink);margin-top:2px}
.stat .v small{font-size:.62em;color:var(--muted);font-weight:500}
.stat--accent{background:var(--pulse-tint);border-color:#ffd9d4}
.stat--accent .v{color:var(--pulse-dark)}
.stat--brand{background:var(--brand-tint);border-color:#d4dafe}
.stat--brand .v{color:var(--brand-dark)}
@media (min-width:520px){.stat-grid{grid-template-columns:repeat(3,1fr)}}

/* bloki "co dalej" w wynikach (treści pochodne) */
.derived{margin-top:16px}
.derived h3{font-size:.96rem;display:flex;align-items:center;gap:8px;margin-bottom:10px}
.derived h3 .tag{font-family:var(--mono);font-size:.62rem;background:var(--brand);color:#fff;padding:3px 7px;border-radius:6px;letter-spacing:.05em;text-transform:uppercase}

.table{width:100%;border-collapse:collapse;font-size:.9rem;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.table th,.table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
.table th{background:var(--canvas);font-family:var(--display);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.table tr:last-child td{border-bottom:none}
.table td.num,.table th.num{text-align:right;font-family:var(--mono);font-weight:600}
.table tr.hl td{background:var(--pulse-tint);font-weight:600}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--r)}

.zonebar{display:flex;height:12px;border-radius:var(--r-pill);overflow:hidden;margin:4px 0 12px}
.zonebar i{flex:1}

.gauge{height:14px;background:var(--line);border-radius:var(--r-pill);position:relative;margin:18px 0 8px;overflow:visible}
.gauge .fill{height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--good),var(--warn),var(--bad))}
.gauge .needle{position:absolute;top:-6px;width:3px;height:26px;background:var(--ink);border-radius:2px;transform:translateX(-50%)}

.note{font-size:.82rem;color:var(--muted);margin-top:10px;display:flex;gap:8px;align-items:flex-start}
.note svg{width:15px;height:15px;flex-shrink:0;margin-top:2px;color:var(--brand)}

/* historia (localStorage) */
.history{margin-top:16px}
.history-item{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#fff;
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px;font-size:.86rem}
.history-item .meta{color:var(--muted);font-family:var(--mono);font-size:.74rem}
.history-item .val{font-family:var(--mono);font-weight:700;color:var(--ink)}
.history-empty{font-size:.85rem;color:var(--muted);padding:8px 0}

/* toast */
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:#fff;padding:12px 18px;border-radius:var(--r-pill);font-size:.88rem;font-weight:500;
  box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:.3s;z-index:100}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ==========================================================================
   KARTY / SIATKI TREŚCI
   ========================================================================== */
.cards{display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:600px){.cards{grid-template-columns:1fr 1fr}}
@media (min-width:900px){.cards--3{grid-template-columns:1fr 1fr 1fr}}

.tool-card{display:flex;flex-direction:column;gap:8px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s,border-color .18s}
.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong);text-decoration:none}
.tool-card .ic{width:42px;height:42px;border-radius:11px;background:var(--brand-tint);display:grid;place-items:center;color:var(--brand);margin-bottom:4px}
.tool-card .ic svg{width:22px;height:22px}
.tool-card h3{margin:0;font-size:1.1rem;color:var(--ink)}
.tool-card p{margin:0;font-size:.9rem;color:var(--muted)}
.tool-card .io{font-family:var(--mono);font-size:.74rem;color:var(--brand);margin-top:auto;font-weight:600}
.tool-card .io::after{content:" →"}

.step-grid{display:grid;gap:14px;counter-reset:step}
@media (min-width:740px){.step-grid{grid-template-columns:repeat(3,1fr)}}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;position:relative}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);font-family:var(--mono);
  font-size:.8rem;font-weight:700;color:var(--pulse);display:block;margin-bottom:8px}
.step h3{font-size:1.05rem}
.step p{margin:0;font-size:.92rem}

.feature-list{display:grid;gap:12px}
@media (min-width:680px){.feature-list{grid-template-columns:1fr 1fr}}
.feature{display:flex;gap:12px;align-items:flex-start}
.feature .fic{width:36px;height:36px;border-radius:10px;background:var(--pulse-tint);color:var(--pulse-dark);
  display:grid;place-items:center;flex-shrink:0}
.feature .fic svg{width:18px;height:18px}
.feature h3{margin:0 0 2px;font-size:1rem}
.feature p{margin:0;font-size:.9rem;color:var(--muted)}

.prose{max-width:74ch}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.2em}
.prose > p:first-of-type{font-size:1.05rem}
.callout{background:var(--brand-tint);border-left:4px solid var(--brand);border-radius:0 var(--r) var(--r) 0;
  padding:16px 18px;margin:18px 0}
.callout.warn{background:var(--warn-tint);border-color:var(--warn)}
.callout p:last-child{margin-bottom:0}
.formula{font-family:var(--mono);background:var(--ink);color:#fff;border-radius:var(--r);padding:16px 18px;
  font-size:.92rem;overflow-x:auto;margin:14px 0;line-height:1.7}
.formula b{color:var(--pulse)}

/* FAQ — czysty <details>, bez JS */
.faq{display:grid;gap:10px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:16px 18px;font-family:var(--display);font-weight:600;
  font-size:1.02rem;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--brand);font-weight:400;transition:transform .2s;flex-shrink:0}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .a{padding:14px 18px 18px;color:var(--ink-soft);font-size:.95rem}
.faq .a p:last-child{margin-bottom:0}

/* opinie (statyczne) */
.reviews{display:grid;gap:14px}
@media (min-width:760px){.reviews{grid-template-columns:repeat(3,1fr)}}
.review{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;box-shadow:var(--shadow-sm)}
.review .stars{color:#F5A623;font-size:.95rem;letter-spacing:2px;margin-bottom:8px}
.review p{font-size:.92rem;color:var(--ink-soft)}
.review .who{display:flex;align-items:center;gap:10px;margin-top:12px}
.review .av{width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;
  font-family:var(--display);font-weight:700;font-size:.85rem}
.review .who b{font-size:.88rem}
.review .who span{font-size:.76rem;color:var(--muted);display:block}

/* breadcrumb */
.crumbs{font-size:.82rem;color:var(--muted);padding-top:14px}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumbs li{margin:0;display:flex;align-items:center;gap:6px}
.crumbs li:not(:last-child)::after{content:"/";color:var(--line-strong)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs [aria-current]{color:var(--ink);font-weight:600}

/* sekcja CTA */
.cta-band{background:var(--ink);border-radius:var(--r-lg);padding:clamp(28px,5vw,44px);text-align:center;
  position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;
  background:radial-gradient(50% 80% at 100% 0,rgba(255,75,62,.22),transparent 60%),radial-gradient(40% 70% at 0 100%,rgba(46,64,230,.30),transparent 60%)}
.cta-band > *{position:relative}
.cta-band h2,.cta-band p{color:#fff}
.cta-band p{opacity:.82;max-width:52ch;margin-inline:auto}

/* related */
.related-grid{display:grid;gap:12px;grid-template-columns:1fr}
@media(min-width:620px){.related-grid{grid-template-columns:1fr 1fr}}
@media(min-width:920px){.related-grid{grid-template-columns:1fr 1fr 1fr 1fr}}
.related a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:14px 16px;font-weight:600;font-size:.92rem;color:var(--ink);box-shadow:var(--shadow-sm);transition:.15s}
.related a:hover{border-color:var(--brand);color:var(--brand);text-decoration:none;transform:translateY(-2px)}
.related a span{display:block;font-family:var(--mono);font-size:.7rem;color:var(--muted);font-weight:500;margin-top:3px}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{background:var(--ink);color:#C3CADB;margin-top:clamp(40px,7vw,72px);padding-block:clamp(40px,6vw,60px) 28px}
.foot-grid{display:grid;gap:28px;grid-template-columns:1fr}
@media(min-width:640px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media(min-width:980px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}}
.site-footer .foot-h{color:#fff;font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px}
.site-footer a{color:#C3CADB;font-size:.9rem;display:block;padding:5px 0}
.site-footer a:hover{color:#fff}
.foot-brand .brand{color:#fff;margin-bottom:12px}
.foot-brand p{color:#9AA3BC;font-size:.88rem;max-width:38ch}
.foot-bottom{border-top:1px solid rgba(255,255,255,.10);margin-top:32px;padding-top:20px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:.82rem;color:#8B94AE}
.foot-bottom a{display:inline;color:#8B94AE}
.foot-links-inline{display:flex;flex-wrap:wrap;gap:14px}

/* cookie bar (CSS-only, zamykany checkboxem) */
#cookie-toggle{position:fixed;opacity:0;pointer-events:none}
.cookie-bar{position:fixed;left:12px;right:12px;bottom:12px;z-index:90;background:#fff;border:1px solid var(--line-strong);
  border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:16px 18px;display:flex;gap:14px;align-items:center;
  flex-wrap:wrap;max-width:680px;margin-inline:auto;transition:.3s}
#cookie-toggle:checked ~ .cookie-bar{transform:translateY(160%);opacity:0;pointer-events:none}
.cookie-bar p{margin:0;font-size:.84rem;color:var(--ink-soft);flex:1;min-width:200px}
.cookie-bar label{cursor:pointer}
.cc-ok .cookie-bar,.cc-ok #cookie-toggle{display:none!important}

/* 404 */
.err{text-align:center;padding-block:clamp(50px,10vw,90px)}
.err .code{font-family:var(--mono);font-size:clamp(4rem,18vw,8rem);font-weight:700;color:var(--brand);line-height:1;letter-spacing:-.04em}
.err .code b{color:var(--pulse)}

/* utility */
.center{text-align:center}
.mt0{margin-top:0}.mb0{margin-bottom:0}
.hide{display:none}
.divider{height:1px;background:var(--line);border:none;margin-block:clamp(28px,5vw,44px)}
.pill-tag{display:inline-block;background:var(--good-tint);color:var(--good);font-size:.74rem;font-weight:700;
  padding:4px 10px;border-radius:var(--r-pill);font-family:var(--mono);letter-spacing:.04em}

:focus-visible{outline:none;box-shadow:var(--ring);border-radius:6px}