/* Portfolio kacperkruszka.pl — arkusz stylów. Źródło prawdy: ten plik (podgląd na claude.ai
   generuje tools/preview.py). Zasady wydajności: README, sekcja „Wydajność”. */

/* Geist i Geist Mono (SIL OFL 1.1, licencje w assets/fonts/) — lokalnie, tylko łacina + łacina rozszerzona. */
@font-face {
  font-family: "Geist";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("/assets/fonts/geist-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: "Geist";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("/assets/fonts/geist-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: "Geist Mono";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("/assets/fonts/geist-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: "Geist Mono";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("/assets/fonts/geist-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;
}

/* Grafit i srebro: czerń z ziarnem, biel, szarości i metaliczny połysk na słowach, które niosą sens. */
:root {
  color-scheme: dark;
  --noc: #0B0C0E;
  --grafit: #121316;
  --grafit-2: #1A1C20;
  --linia: rgba(255, 255, 255, .09);
  --biel: #F4F5F7;
  --srebro: #CCD1D8;
  --szary: #8A919B;
  --mgla: #E9EBEF;
  --mgla-jasna: #FAFBFD;
  --tekst-na-mgle: #4A4F57;
  --linia-na-mgle: rgba(11, 12, 14, .12);
  --chrom: linear-gradient(170deg, #E9EBEF 8%, #AEB4BD 46%, #6E747D 72%, #E9EBEF 100%);
  --chrom-ciemny: linear-gradient(170deg, #0B0C0E 10%, #3A3F47 48%, #7A818B 74%, #0B0C0E 100%);
  /* linia i tekst pomocniczy zależne od tła sekcji — .sheet--mgla podmienia je na wersje „na mgle” */
  --ln: var(--linia);
  --tx2: var(--srebro);
  --tx3: var(--szary);

  --gutter: clamp(20px, 4.5vw, 72px);
  --bar-h: 60px;
  --ease: cubic-bezier(.2, .7, .2, 1);

  --sans: "Geist", "Helvetica Neue", Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--bar-h) + 16px); }
html.motion { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--noc);
  color: var(--biel);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3 { text-wrap: balance; }
a { color: inherit; }

:focus-visible { outline: 2px solid var(--biel); outline-offset: 3px; border-radius: 2px; }
.sheet--mgla :focus-visible { outline-color: var(--noc); }

.skip {
  position: absolute; left: var(--gutter); top: -120px; z-index: 60;
  padding: .6rem 1rem; background: var(--biel); color: var(--noc);
  font-weight: 500; text-decoration: none;
}
.skip:focus { top: 12px; }

.eyebrow {
  margin: 0;
  font-family: var(--mono); font-size: .72rem; font-weight: 450;
  letter-spacing: .16em; text-transform: uppercase; color: var(--szary);
}
.sheet--mgla .eyebrow { color: var(--tekst-na-mgle); }

.chrom {
  background: var(--chrom);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.sheet--mgla .chrom { background-image: var(--chrom-ciemny); }

/* odblask: raz przechodzi po metalicznym słowie, kiedy się pojawia */
.glint { background-size: 300% 100%; background-position: 0 0; }
html.reveal-on .glint { background-position: 100% 0; }
html.reveal-on.loaded .hero__title .glint,
html.reveal-on .is-in .glint { animation: glint 2.6s var(--ease) .9s forwards; }
@keyframes glint { from { background-position: 100% 0; } to { background-position: 0 0; } }

/* ---------- wejścia przy przewijaniu ---------- */
html.reveal-on [data-reveal] {
  opacity: 0; transform: translateY(26px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
html.reveal-on [data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- przyciski ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55em;
  min-height: 44px; padding: 0 1.15rem;
  border: 1px solid transparent; border-radius: 3px;
  font: 500 .94rem/1 var(--sans); text-decoration: none; cursor: pointer;
  transition: background-color .18s ease, border-color .18s ease, color .18s ease;
}
.btn--light { background: var(--biel); color: var(--noc); }
.btn--light:hover { background: #fff; }
.btn--ghost { border-color: rgba(255, 255, 255, .26); color: var(--biel); }
.btn--ghost:hover { border-color: var(--biel); }
.arr { width: 1em; height: 1em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.5; transition: transform .25s var(--ease); }
.btn:hover .arr { transform: translateX(3px); }

/* ---------- logo: litera K narysowana jak schemat sieci ---------- */
.logo { width: 26px; height: 26px; flex: none; overflow: visible; color: var(--biel); }
.logo .e { fill: none; stroke: currentColor; stroke-width: 1.6; }
.logo .n { fill: currentColor; transform-box: fill-box; transform-origin: center; }
.logo .hub { fill: var(--noc); stroke: currentColor; stroke-width: 1.6; transform-box: fill-box; transform-origin: center; }
html.reveal-on .logo .e { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset .8s var(--ease) calc(.1s + var(--o, 0) * .15s); }
html.reveal-on .logo .n, html.reveal-on .logo .hub { transform: scale(0); transition: transform .5s var(--ease) calc(.35s + var(--o, 0) * .1s); }
html.reveal-on.loaded .logo .e { stroke-dashoffset: 0; }
html.reveal-on.loaded .logo .n, html.reveal-on.loaded .logo .hub { transform: none; }
.wordmark:hover .logo .hub { animation: hubpulse .7s var(--ease); }
@keyframes hubpulse { 45% { transform: scale(1.45); } }

/* ---------- pasek u góry ---------- */
.bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 40;
  display: flex; align-items: center; gap: 1.25rem;
  height: calc(var(--bar-h) + env(safe-area-inset-top, 0px));
  padding: env(safe-area-inset-top, 0px) var(--gutter) 0;
  background: rgba(11, 12, 14, .94);
  border-bottom: 1px solid var(--linia);
}
/* ile strony zostało do końca */
.bar::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: var(--biel); opacity: .75;
  transform-origin: 0 50%; transform: scaleX(var(--scroll, 0));
}
.wordmark { display: inline-flex; align-items: center; gap: .7rem; min-height: 44px; font-size: 1.02rem; font-weight: 600; letter-spacing: -.035em; color: var(--biel); text-decoration: none; }
.wordmark__dim { color: var(--szary); }
.bar__tag { display: none; font-size: .85rem; color: var(--szary); }
.bar__nav { display: none; gap: .1rem; margin-inline-start: auto; }
.bar__nav a {
  display: inline-flex; align-items: center; gap: .5rem;
  min-height: 44px; padding: 0 .75rem;
  color: var(--szary); text-decoration: none; font-size: .94rem;
  transition: color .18s ease;
}
.bar__nav a:hover, .bar__nav a[aria-current] { color: var(--biel); }
.bar__nav a[aria-current]::before { content: ""; width: 5px; height: 5px; background: var(--biel); }
.bar .btn { margin-inline-start: auto; }
@media (min-width: 760px) { .bar__tag { display: inline; } }
@media (min-width: 1020px) { .bar__nav { display: flex; } .bar .btn { margin-inline-start: .5rem; } }
/* pięć linków w menu: między 1020 a 1240 px dopisek w pasku się nie mieści */
@media (min-width: 1020px) and (max-width: 1239px) { .bar__tag { display: none; } }
.bar .btn { white-space: nowrap; }

/* ziarno: gotowa tekstura z przezroczystością, zwykłe nakładanie — tryb mieszania na cały ekran kosztował każdą klatkę */
.grain {
  position: fixed; inset: 0; z-index: 35; pointer-events: none;
  background-size: 160px;
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh; min-height: 100svh;
  display: grid; grid-template-columns: minmax(0, 1fr);
  row-gap: clamp(40px, 7svh, 72px);
  padding: calc(var(--bar-h) + env(safe-area-inset-top, 0px) + clamp(28px, 6svh, 64px)) var(--gutter) clamp(18px, 3.4svh, 36px);
  background: var(--noc);
  overflow: hidden;
}
.hero > :not(.net):not(.net-dots) { position: relative; z-index: 1; }
/* sieć w tle: siatka punktów, po której wędrują impulsy */
.net, .net-dots { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
@media (min-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    grid-template-rows: 1fr auto;
    column-gap: clamp(40px, 5vw, 100px);
    row-gap: clamp(20px, 4svh, 40px);
  }
  .hero__text { grid-column: 1; grid-row: 1; }
  .showcase { grid-column: 2; grid-row: 1; }
  /* Wyśrodkowane w pionie, ale z przechyłem ku górze: dolny margines podnosi środek o połowę
     swojej wysokości. Tekst (niższy) idzie w górę mocniej, karta tylko o tyle, ile mieści się
     w oknie — przy 1440×637 hero nie może urosnąć ponad ekran, bo „Przewiń” spadłoby pod krawędź. */
  .hero__text { margin-bottom: clamp(32px, 13svh, 160px); }
  .showcase { margin-bottom: clamp(0px, calc(10svh - 30px), 110px); }
  .strip { grid-column: 1 / -1; }
}
.hero__text { align-self: center; display: grid; gap: clamp(18px, 3.4svh, 30px); }
.hero__title {
  margin: 0;
  font-size: clamp(2.4rem, min(4.9vw, 9.6svh), 5.4rem); font-weight: 600;
  line-height: .98; letter-spacing: -.055em;
}
/* wiersze wysuwają się spod krawędzi; dolny margines chroni ogonki „ę”, „j”, „p” przed przycięciem */
.hero__title .line { display: block; overflow: hidden; padding-bottom: .1em; margin-bottom: -.1em; }
.line__in { display: block; }
html.reveal-on .hero__title .line__in {
  transform: translateY(112%);
  transition: transform 1.1s var(--ease);
  transition-delay: calc(.15s + var(--l, 0) * .12s);
}
html.reveal-on.loaded .hero__title .line__in { transform: none; }
.hero__lead { margin: 0; max-width: 38rem; font-size: clamp(1rem, 1.15vw, 1.125rem); line-height: 1.6; color: var(--srebro); }
.hero__cta { display: flex; flex-wrap: wrap; gap: .75rem; }

/* karta z podglądem usług */
.showcase { align-self: center; perspective: 1600px; width: 100%; max-width: 34rem; justify-self: end; }
.showcase__ghost { display: none; }
.showcase__card {
  position: relative; z-index: 2;
  padding: 6px 14px 14px;
  background: var(--grafit); border: 1px solid var(--linia); border-radius: 12px;
  box-shadow: 0 40px 90px rgba(0, 0, 0, .55);
}
@media (min-width: 960px) {
  .showcase__card, .showcase__ghost { transform: rotateY(-9deg) rotateX(3deg); transition: transform .9s var(--ease); }
  .showcase__ghost {
    display: block; position: absolute; inset: 0; z-index: 1;
    background: rgba(18, 19, 22, .7); border: 1px solid var(--linia); border-radius: 12px;
    translate: 18px -18px;
  }
  .showcase__ghost--2 { z-index: 0; translate: 36px -36px; opacity: .45; }
  .showcase:hover .showcase__card, .showcase:focus-within .showcase__card { transform: rotateY(-4deg) rotateX(1.5deg); }
}
.tabs { display: flex; border-bottom: 1px solid var(--linia); margin-bottom: 14px; overflow-x: auto; scrollbar-width: none; }
.tab {
  appearance: none; background: none; border: 0; border-bottom: 1px solid transparent; margin-bottom: -1px;
  min-height: 44px; padding: 0 .75rem;
  font: 500 .86rem var(--sans); color: var(--szary); cursor: pointer; white-space: nowrap;
  transition: color .2s ease, border-color .2s ease;
}
.tab:hover { color: var(--srebro); }
.tab[aria-selected="true"] { color: var(--biel); border-bottom-color: var(--biel); }
.panels { display: grid; }
.panel {
  grid-area: 1 / 1;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .45s var(--ease), transform .45s var(--ease), visibility 0s linear .45s;
}
.panel.is-active { opacity: 1; visibility: visible; transform: none; transition: opacity .45s var(--ease), transform .45s var(--ease), visibility 0s; }
.panel__cap { margin: 14px 2px 6px; font-size: .95rem; line-height: 1.5; color: var(--srebro); }
.panel__tags { margin: 0 2px; font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--szary); }
.showcase__foot { display: flex; align-items: center; gap: 12px; margin: 14px 2px 0; }
.showcase__count { font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; color: var(--szary); font-variant-numeric: tabular-nums; }
.showcase__progress { flex: 1; height: 1px; background: var(--linia); overflow: hidden; }
.showcase__progress span { display: block; height: 100%; background: var(--biel); transform-origin: 0 50%; transform: scaleX(0); }
.showcase__progress.run span { animation: fill var(--rot, 6s) linear forwards; }
.showcase__progress.done span { transform: scaleX(1); }
@keyframes fill { to { transform: scaleX(1); } }

/* makiety: czysta szarość, bez kolorów */
.mock { height: 216px; overflow: hidden; border: 1px solid var(--linia); border-radius: 8px; background: var(--noc); font-size: 11px; line-height: 1.3; }

.mock--site { background: var(--mgla); color: var(--noc); border-color: transparent; }
.mock__chrome { display: flex; align-items: center; gap: 5px; height: 26px; padding: 0 10px; background: #D9DCE1; }
.mock__chrome i { width: 7px; height: 7px; border-radius: 50%; background: #B4B9C1; }
.mock__chrome span { margin-inline-start: 10px; padding: 2px 10px; border-radius: 4px; background: #EEF0F3; font-family: var(--mono); font-size: 10px; color: #5A6069; }
.site { display: grid; gap: 12px; padding: 12px 16px; }
.site__nav { display: flex; align-items: center; gap: 12px; font-size: 10px; color: #5A6069; }
.site__nav b { margin-inline-end: auto; font-size: 10.5px; letter-spacing: .06em; color: var(--noc); }
.site__h { margin: 0; max-width: 15ch; font-size: 20px; font-weight: 600; line-height: 1.05; letter-spacing: -.045em; }
.site__s { margin: 5px 0 9px; font-size: 10.5px; color: #5A6069; }
.site__btn { display: inline-block; padding: 5px 10px; border-radius: 3px; background: var(--noc); color: #fff; font-size: 10px; }
.site__row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.site__row span { height: 30px; border-radius: 4px; background: #DADDE2; }

.mock--app { display: grid; grid-template-rows: auto 1fr auto; gap: 8px; padding: 12px 14px; }
.app__head { display: flex; justify-content: space-between; align-items: baseline; }
.app__head b { font-size: 13px; font-weight: 600; letter-spacing: -.02em; }
.app__head span { font-family: var(--mono); font-size: 10px; color: var(--szary); }
.app__slots { list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; align-content: start; }
.app__slots li { display: grid; grid-template-columns: 38px 1fr auto 7px; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 5px; background: var(--grafit-2); }
.app__slots span { font-family: var(--mono); font-size: 10px; color: var(--szary); }
.app__slots b { font-weight: 500; }
.app__slots em { font-style: normal; color: var(--szary); }
.app__slots i { width: 7px; height: 7px; background: var(--biel); }
.app__slots .is-free { background: transparent; border: 1px dashed rgba(255, 255, 255, .2); }
.app__slots .is-free b { color: var(--szary); }
.app__slots .is-free i { background: none; border: 1px solid var(--szary); }
.app__btn { justify-self: start; padding: 4px 9px; border: 1px solid rgba(255, 255, 255, .22); border-radius: 3px; font-size: 10.5px; color: var(--srebro); }

.mock--int { display: grid; align-content: center; gap: 16px; padding: 14px; }
.int__row { display: grid; grid-template-columns: 1fr 26px 1fr 26px 1fr; align-items: center; }
.int__sys { display: grid; gap: 2px; padding: 8px; border: 1px solid var(--linia); border-radius: 6px; background: var(--grafit-2); }
.int__sys b { font-size: 11.5px; font-weight: 600; }
.int__sys span { font-family: var(--mono); font-size: 9.5px; color: var(--szary); }
.int__link { position: relative; height: 1px; background: rgba(255, 255, 255, .25); overflow: visible; container-type: inline-size; }
.int__link i { position: absolute; top: -2px; left: -2px; width: 5px; height: 5px; background: var(--biel); box-shadow: 0 0 8px rgba(255, 255, 255, .8); opacity: 0; }
html.motion .panel.is-active .int__link i { animation: flowdot 1.6s linear infinite; }
html.motion .panel.is-active .int__link + .int__sys + .int__link i { animation-delay: .8s; }
@keyframes flowdot { from { transform: translateX(0); opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } to { transform: translateX(100cqw); opacity: 0; } }
html:not(.motion) .int__link i { opacity: 1; left: calc(50% - 2px); }
.int__log { list-style: none; margin: 0; padding: 10px 0 0; border-top: 1px solid var(--linia); display: grid; gap: 5px; font-family: var(--mono); font-size: 10px; color: var(--srebro); }
.int__log span { margin-inline-end: 10px; color: var(--szary); }

.mock--dash { display: grid; grid-template-rows: auto 1fr auto; gap: 10px; padding: 12px 14px; }
.dash__kpi { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.dash__kpi div { display: grid; padding: 7px 8px; border-radius: 5px; background: var(--grafit-2); }
.dash__kpi span { font-size: 9.5px; color: var(--szary); }
.dash__kpi b { font-size: 17px; font-weight: 600; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.dash__chart { display: flex; align-items: flex-end; gap: 5px; padding-bottom: 2px; border-bottom: 1px solid var(--linia); }
.dash__chart i { flex: 1; height: calc(var(--h) * 100%); border-radius: 2px 2px 0 0; background: linear-gradient(180deg, #CCD1D8, #6E747D); opacity: .85; transform-origin: 50% 100%; }
html.motion .panel.is-active .dash__chart i { animation: grow .8s var(--ease) both; animation-delay: calc(var(--n) * 40ms); }
@keyframes grow { from { transform: scaleY(0); } }
.dash__ai { display: flex; align-items: center; gap: 8px; font-size: 10.5px; color: var(--srebro); }
.dash__ai span { padding: 1px 5px; border: 1px solid rgba(255, 255, 255, .3); border-radius: 3px; font-family: var(--mono); font-size: 9px; color: var(--biel); }

.mock--mail { display: grid; grid-template-rows: auto 1fr; gap: 8px; padding: 12px 14px; }
.mail__head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.mail__head b { font-family: var(--mono); font-size: 11.5px; font-weight: 500; }
.mail__head span { font-size: 10px; color: var(--szary); }
.mail__checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; align-content: start; }
.mail__checks li { display: grid; grid-template-columns: 46px 1fr 9px; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 5px; background: var(--grafit-2); color: var(--srebro); }
.mail__checks span { font-family: var(--mono); font-size: 9.5px; letter-spacing: .08em; color: var(--biel); }
.mail__checks i { width: 9px; height: 5px; border-left: 1.5px solid var(--biel); border-bottom: 1.5px solid var(--biel); transform: rotate(-45deg) translateY(-2px); }
html.motion .panel.is-active .mail__checks i { animation: tick .35s var(--ease) both; animation-delay: calc(.2s + var(--n) * .18s); }
@keyframes tick { from { opacity: 0; transform: rotate(-45deg) translateY(-2px) scale(.3); } }

.strip {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .75rem 2rem;
  padding-top: clamp(14px, 2.4svh, 22px);
  border-top: 1px solid var(--linia);
  font-size: .85rem; color: var(--szary);
}
.strip__hint { display: inline-flex; align-items: center; gap: .6rem; color: var(--srebro); }
.strip__hint svg { width: 14px; height: 14px; }
html.motion .strip__hint svg { animation: bob 1.8s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(3px); } }

/* ---------- pas z nazwami usług, przesuwany przewijaniem ---------- */
.band { overflow: hidden; padding-block: clamp(14px, 2.4svh, 22px); border-block: 1px solid var(--linia); background: var(--noc); }
.band__track {
  display: flex; align-items: center; gap: clamp(16px, 2vw, 32px); width: max-content;
  font-size: clamp(1.3rem, 2.4vw, 2.4rem); font-weight: 600; line-height: 1.1; letter-spacing: -.045em; white-space: nowrap;
  will-change: transform;
}
.band__track .o { color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, .45); }
.band__track i { flex: none; width: .22em; height: .22em; background: var(--szary); }
.band__track i:nth-of-type(3n) { background: none; outline: 1.5px solid var(--szary); outline-offset: -1.5px; }

/* ---------- sekcje ---------- */
.sheet--mgla { --ln: var(--linia-na-mgle); --tx2: var(--tekst-na-mgle); --tx3: var(--tekst-na-mgle); background: var(--mgla); color: var(--noc); }
.section { padding: clamp(96px, 18svh, 200px) var(--gutter); }

/* podejście */
.thesis__inner { display: grid; gap: clamp(28px, 6svh, 64px); }
.thesis__text {
  margin: 0; max-width: 23em;
  font-size: clamp(1.8rem, 3.5vw, 3.7rem); font-weight: 600;
  line-height: 1.1; letter-spacing: -.045em;
}
html.motion .w { opacity: calc(.14 + .86 * clamp(0, calc(var(--sp, 1) * (var(--n) + 2) - var(--i) - 1), 1)); }
.facts { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--ln); }
.fact { display: grid; gap: .6rem; padding: 1.25rem 0; border-bottom: 1px solid var(--ln); }
.fact p:last-child { margin: 0; max-width: 36ch; font-size: 1rem; line-height: 1.55; color: var(--tx2); }
@media (min-width: 760px) {
  .facts { grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--ln); }
  .fact { padding: 1.4rem 2rem 1.6rem 0; border-bottom: 0; }
  .fact + .fact { padding-inline-start: 2rem; border-inline-start: 1px solid var(--ln); }
}

/* układ „spis po lewej, treść po prawej” */
.split { display: grid; gap: clamp(32px, 6vw, 96px); }
.split__side { display: grid; gap: 1.25rem; align-content: start; }
.split__side h2 { margin: 0; font-size: clamp(2.3rem, min(4.4vw, 9svh), 4.6rem); font-weight: 600; letter-spacing: -.055em; line-height: .95; }
.split__side > p:not(.eyebrow) { margin: 0; max-width: 34ch; color: var(--szary); }
.sheet--mgla .split__side > p:not(.eyebrow) { color: var(--tekst-na-mgle); }
.toc { display: none; }
@media (min-width: 960px) {
  .split { grid-template-columns: minmax(0, .85fr) minmax(0, 1.35fr); }
  .split__side { position: sticky; top: calc(var(--bar-h) + 6svh); align-self: start; }
  .toc { display: grid; list-style: none; margin: 1.25rem 0 0; padding: 0; border-inline-start: 1px solid var(--linia); }
  .toc a {
    display: flex; align-items: baseline; gap: 1rem;
    margin-inline-start: -1px; padding: .45rem 0 .45rem 1.25rem;
    border-inline-start: 1px solid transparent;
    color: var(--szary); text-decoration: none; font-size: 1.02rem; letter-spacing: -.01em;
    transition: color .3s ease, border-color .3s ease;
  }
  .toc a span { font-family: var(--mono); font-size: .7rem; letter-spacing: .1em; }
  .toc a:hover { color: var(--srebro); }
  .toc a[aria-current] { color: var(--biel); border-inline-start-color: var(--biel); }
  .sheet--mgla .toc { border-inline-start-color: var(--linia-na-mgle); }
  .sheet--mgla .toc a { color: var(--tekst-na-mgle); }
  .sheet--mgla .toc a:hover, .sheet--mgla .toc a[aria-current] { color: var(--noc); }
  .sheet--mgla .toc a[aria-current] { border-inline-start-color: var(--noc); }
}

.entry { display: grid; gap: 1.1rem; align-content: center; padding-block: clamp(36px, 8svh, 84px); border-top: 1px solid var(--linia); }
.sheet--mgla .entry { border-top-color: var(--linia-na-mgle); }
.entry:first-child { border-top: 0; padding-top: 0; }
@media (min-width: 960px) { .entry { min-height: 56svh; } .entry:first-child { min-height: 0; padding-bottom: clamp(36px, 8svh, 84px); } }
.entry h3 { margin: 0; font-size: clamp(2rem, 3.4vw, 3.4rem); font-weight: 600; line-height: 1; letter-spacing: -.05em; }
.entry > p:not(.eyebrow):not(.entry__ex) { margin: 0; max-width: 36rem; font-size: clamp(1.02rem, 1.2vw, 1.15rem); line-height: 1.6; color: var(--srebro); }
.sheet--mgla .entry > p:not(.eyebrow) { color: var(--tekst-na-mgle); }
.entry__ex { margin: 0; font-family: var(--mono); font-size: .78rem; line-height: 1.6; color: var(--szary); }
/* Współpraca: krótkie etapy, więc bez wysokich pól — lista czyta się jednym ciągiem. */
.split--compact .entry { gap: .7rem; padding-block: clamp(22px, 4svh, 36px); }
.split--compact .entry:first-child { padding-top: 0; }
@media (min-width: 960px) { .split--compact .entry, .split--compact .entry:first-child { min-height: 0; } }
.split--compact .entry h3 { font-size: clamp(1.7rem, 2.6vw, 2.6rem); }

/* ikony usług: rysują się kreską przy wejściu */
.ico { width: 48px; height: 48px; color: var(--srebro); overflow: visible; }
.ico .l { fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linecap: square; }
.ico .nd { fill: currentColor; }
html.reveal-on .entry .ico .l { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.3s var(--ease) .25s; }
html.reveal-on .entry .ico .nd { opacity: 0; transition: opacity .4s ease 1s; }
html.reveal-on .entry.is-in .ico .l { stroke-dashoffset: 0; }
html.reveal-on .entry.is-in .ico .nd { opacity: 1; }

/* ---------- kalkulator kosztu ręcznej pracy ---------- */
.calc__grid { display: grid; gap: clamp(32px, 6vw, 96px); align-items: center; }
@media (min-width: 960px) { .calc__grid { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); } }
.calc__intro { display: grid; gap: 1.25rem; align-content: start; }
.calc__intro h2 { margin: 0; font-size: clamp(2.2rem, 4vw, 4.2rem); font-weight: 600; letter-spacing: -.055em; line-height: .98; }
.calc__intro p:not(.eyebrow) { margin: 0; max-width: 38ch; color: var(--tx3); }
.calc__panel {
  display: grid; gap: 1.6rem;
  padding: clamp(24px, 3.4vw, 48px);
  background: var(--grafit); border: 1px solid var(--linia); border-radius: 12px;
}
.field { display: grid; gap: .4rem; }
.field__top { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.field label { font-size: .98rem; color: var(--srebro); }
.field output { font-family: var(--mono); font-size: .95rem; color: var(--biel); font-variant-numeric: tabular-nums; white-space: nowrap; }
.calc input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 28px; margin: 0; background: transparent; cursor: pointer;
}
.calc input[type="range"]::-webkit-slider-runnable-track {
  height: 2px; border-radius: 2px;
  background: linear-gradient(var(--biel), var(--biel)) 0 0 / var(--fill, 50%) 100% no-repeat, rgba(255, 255, 255, .14);
}
.calc input[type="range"]::-moz-range-track { height: 2px; border-radius: 2px; background: rgba(255, 255, 255, .14); }
.calc input[type="range"]::-moz-range-progress { height: 2px; border-radius: 2px; background: var(--biel); }
.calc input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 20px; height: 20px; margin-top: -9px; border-radius: 50%;
  background: var(--biel); border: 5px solid var(--grafit); box-shadow: 0 0 0 1px var(--biel);
  transition: transform .15s ease;
}
.calc input[type="range"]::-moz-range-thumb {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--biel); border: 5px solid var(--grafit); box-shadow: 0 0 0 1px var(--biel);
}
.calc input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.15); }
.calc__result { display: grid; gap: .35rem; padding-top: 1.4rem; border-top: 1px solid var(--linia); }
.calc__big {
  margin: 0; font-size: clamp(2.8rem, 5.4vw, 5rem); font-weight: 600;
  line-height: 1; letter-spacing: -.055em; font-variant-numeric: tabular-nums;
}
.calc__big small { font-size: .42em; letter-spacing: -.02em; }
.calc__sub { margin: 0; color: var(--srebro); }
.calc__note { margin: 0; font-size: .9rem; line-height: 1.55; color: var(--szary); }
.calc__panel .btn { justify-self: start; }
/* Na srebrnym arkuszu panel zostaje ciemną kartą — jego środek nie może przejąć kolorów „na mgle”. */
.calc__panel { color: var(--biel); }
.sheet--mgla .calc__panel { box-shadow: 0 30px 70px rgba(11, 12, 14, .22); }
.sheet--mgla .calc__panel .eyebrow { color: var(--szary); }
.sheet--mgla .calc__panel .chrom { background-image: var(--chrom); }
.sheet--mgla .calc__panel :focus-visible { outline-color: var(--biel); }

/* ---------- pod maską: strona mierzy samą siebie ---------- */
.metrics { display: grid; gap: clamp(32px, 6svh, 64px); padding-block: clamp(80px, 14svh, 160px); }
.metrics__head { display: grid; gap: 1.25rem; }
.metrics__head h2 { margin: 0; max-width: 20em; font-size: clamp(1.8rem, 3.2vw, 3.2rem); font-weight: 600; letter-spacing: -.045em; line-height: 1.05; }
.metrics__grid { display: grid; grid-template-columns: repeat(2, 1fr); margin: 0; border-top: 1px solid var(--ln); }
.metric { display: grid; gap: .5rem; align-content: start; padding: 1.4rem 1rem 1.6rem 0; border-bottom: 1px solid var(--ln); }
.metric:nth-child(even) { padding-inline-start: 1rem; border-inline-start: 1px solid var(--ln); }
@media (min-width: 900px) {
  .metrics__grid { grid-template-columns: repeat(4, 1fr); }
  .metric { padding-inline: 0 1.5rem; }
  .metric + .metric { padding-inline-start: 1.5rem; border-inline-start: 1px solid var(--ln); }
}
.metric dt { font-family: var(--mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--tx3); }
.metric dd {
  margin: 0; font-size: clamp(2.4rem, 4.6vw, 4.4rem); font-weight: 600;
  line-height: 1; letter-spacing: -.05em; font-variant-numeric: tabular-nums;
}
.metric dd small { margin-inline-start: .15em; font-family: var(--mono); font-size: .3em; font-weight: 450; letter-spacing: .06em; color: var(--tx3); }
.metrics__note { margin: 0; max-width: 60ch; font-size: .95rem; color: var(--tx3); }

/* ---------- pytania ---------- */
.qa { display: grid; gap: .6rem; padding-block: clamp(22px, 4svh, 36px); border-top: 1px solid var(--ln); }
.qa:first-child { border-top: 0; padding-top: 0; }
.qa h3 { margin: 0; font-size: clamp(1.25rem, 1.9vw, 1.6rem); font-weight: 600; line-height: 1.2; letter-spacing: -.03em; }
.qa p { margin: 0; max-width: 36rem; line-height: 1.6; color: var(--tx2); }

/* projekty pokazowe: zaraz pod „Czym się zajmuję”, ciemna sekcja w rytmie ciemna/srebrna */
.teaser__inner { display: grid; gap: .9rem; }
.teaser__title { margin: 0; font-size: clamp(2rem, 4.6vw, 4.6rem); font-weight: 600; line-height: 1; letter-spacing: -.055em; }
.teaser__title a { text-decoration: none; }
.teaser__title .arr { width: .7em; height: .7em; margin-inline-start: .15em; vertical-align: -.02em; stroke-width: 1.2; transition: transform .35s var(--ease); }
.teaser__title a:hover .arr { transform: translateX(.18em); }
.teaser__sub { margin: 0; max-width: 52ch; color: var(--tx3); }
.teaser__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 2.4vw, 32px) clamp(14px, 2vw, 28px); margin: clamp(24px, 5svh, 48px) 0 0; padding: 0; list-style: none; }
@media (min-width: 900px) { .teaser__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.teaser__grid a { display: grid; gap: .85rem; text-decoration: none; }
.teaser__grid img {
  display: block; width: 100%; height: auto; border: 1px solid var(--ln); border-radius: 8px; background: var(--grafit);
  box-shadow: 0 18px 44px rgba(0, 0, 0, .35);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.teaser__grid a:hover img { transform: translateY(-4px); box-shadow: 0 26px 56px rgba(0, 0, 0, .5); }
.teaser__grid span { display: grid; gap: .25rem; font-size: 1rem; font-weight: 500; line-height: 1.3; letter-spacing: -.02em; }
.teaser__grid small { font-family: var(--mono); font-size: .66rem; font-weight: 450; letter-spacing: .12em; text-transform: uppercase; color: var(--tx3); }

/* ---------- kontakt ---------- */
.contact { position: relative; overflow: hidden; display: grid; gap: clamp(48px, 10svh, 120px); padding: clamp(110px, 20svh, 220px) var(--gutter) clamp(24px, 4svh, 40px); background: var(--noc); }
.contact > :not(.bigmark) { position: relative; z-index: 1; }
.bigmark { display: none; }
@media (min-width: 960px) {
  .bigmark {
    display: block; position: absolute; z-index: 0; right: var(--gutter); top: 42%;
    width: min(30vw, 24rem); translate: 0 -50%;
    color: rgba(255, 255, 255, .16); overflow: visible;
  }
}
.bigmark .e { fill: none; stroke: currentColor; stroke-width: 1.2; vector-effect: non-scaling-stroke; }
.bigmark .n { fill: currentColor; }
.bigmark .hub { fill: var(--noc); stroke: rgba(255, 255, 255, .4); stroke-width: 1.2; vector-effect: non-scaling-stroke; }
.bigmark .sig { fill: var(--biel); }
html:not(.motion) .bigmark .sig { display: none; }
.contact__inner { display: grid; gap: clamp(22px, 4.5svh, 44px); }
.contact__title { margin: 0; font-size: clamp(2.5rem, 6.4vw, 7rem); font-weight: 600; line-height: .96; letter-spacing: -.058em; }
.contact__title .line { display: block; }
.contact__mail { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.25rem; }
.contact__mail a {
  font-size: clamp(1.3rem, 2.8vw, 2.4rem); font-weight: 500; letter-spacing: -.035em;
  text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .2em;
  text-decoration-color: rgba(255, 255, 255, .3);
  transition: text-decoration-color .18s ease;
}
.contact__mail a:hover { text-decoration-color: var(--biel); }
.contact__note { margin: 0; max-width: 48ch; color: var(--szary); }
.contact__base {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .5rem 2rem;
  padding-top: 1.25rem; border-top: 1px solid var(--linia);
  font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--szary);
}
.contact__base .logo { width: 18px; height: 18px; color: var(--szary); }
.contact__base span { display: inline-flex; align-items: center; gap: .7rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ---------- strona 404 ---------- */
.notfound {
  min-height: 100vh; min-height: 100svh;
  display: grid; align-content: center; justify-items: start; gap: 1.5rem;
  padding: var(--gutter);
}
.notfound h1 { margin: 0; font-size: clamp(2.4rem, 6vw, 5.4rem); font-weight: 600; line-height: .98; letter-spacing: -.055em; }
.notfound p:not(.eyebrow) { margin: 0; max-width: 38ch; color: var(--srebro); }

/* Usługi na srebrnym tle: ikony muszą być ciemne, bo srebrne zniknęłyby na srebrze. */
.sheet--mgla .ico { color: var(--tekst-na-mgle); }