/* ==========================================================================
   sebastianpiechocki.com

   Układ oparty na siatce 12-kolumnowej z projektu:
     1440 px: margines 60, kolumna 99, odstęp 12   (12×99 + 11×12 + 2×60 = 1440)
     1920 px: margines 140, kolumna 122, odstęp 16 (12×122 + 11×16 + 2×140 = 1920)
   Margines i odstęp płynnie przechodzą między tymi dwiema wartościami,
   kolumny wypełniają resztę. Dzięki temu obie plansze z projektu
   odwzorowują się co do piksela, a szerokości pośrednie skalują się same.
   ========================================================================== */

:root {
  /* Kolory */
  --teal:      #007E9B;  /* tła i przyciski */
  --teal-text: #00738C;  /* tekst turkusowy na jasnym tle, kontrast 4,81 */
  --teal-dark: #00697F;  /* hover przycisków */
  --light:     #F0F0F0;
  --grey:      #515151;  /* kontrast 6,97 na jasnym tle, 7,94 na białym */
  --white:     #FFFFFF;
  --on-teal:   #FFFFFF;  /* tekst na turkusie, kontrast 4,71 */
  --dark:      #2E5A6B;  /* tło sekcji ciemnej, stopka */
  --dark-head: #86DCEF;  /* H1 i H2 na sekcji ciemnej, kontrast 4,84 na #2E5A6B */
  --dark-text: #F0F0F0;  /* tekst, H3 i H4 na sekcji ciemnej */

  /* Typografia */
  --font-body: "Bitter", Georgia, "Times New Roman", serif;
  --font-head: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;

  --fs-p1: 18px;   /* desktop wg projektu; na telefonie 16 px */
  --fs-p2: 14px;
  --fs-h1: 28px;
  --fs-h2: 28px;
  --fs-h3: 22px;
  --fs-h4: 16px;
  --fs-menu: 18px;
  --fs-quote: 28px;

  --lh: 1.5;
  --lh-head: 1.4;
  --tracking: 0;
  --para-gap: 20px;   /* akapit pod nagłówkiem i między akapitami */
  --head-gap: 40px;   /* nagłówek nad poprzedzającym go blokiem tekstu */

  /* Siatka */
  --margin: 60px;
  --gutter: 12px;

  --header-h: 80px;
  --top-gap:  84px;   /* pierwszy nagłówek pod belką menu, jednakowo na każdej stronie */
  --bar-h:    44px;
}

/* Interpolacja marginesu i odstępu między 1440 a 1920 */
@media (min-width: 1440px) {
  :root {
    --margin: clamp(60px, calc(60px + (100vw - 1440px) / 6), 140px);
    --gutter: clamp(12px, calc(12px + (100vw - 1440px) / 120), 16px);
  }
}

/* ==========================================================================
   Kroje pisma, hostowane lokalnie
   ========================================================================== */

@font-face {
  font-family: "Bitter";
  src: url("/fonts/bitter-400.woff") format("woff");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Bitter";
  src: url("/fonts/bitter-400-italic.woff") format("woff");
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/plex-sans-400.woff") format("woff");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/plex-sans-300.woff") format("woff");
  font-weight: 300; font-style: normal; font-display: swap;
}

/* ==========================================================================
   Reset
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--light);
  color: var(--grey);
  font-family: var(--font-body);
  font-size: var(--fs-p1);
  line-height: var(--lh);
  letter-spacing: var(--tracking);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

:focus-visible { outline: 3px solid currentColor; outline-offset: 3px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%);
  white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--white); color: var(--teal-text);
  padding: 12px 20px; font-family: var(--font-head);
}
.skip:focus { left: 0; }

/* ==========================================================================
   Typografia
   ========================================================================== */

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 400;
  line-height: var(--lh-head);
  letter-spacing: 0;
  margin: 0 0 var(--para-gap);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 {
  font-size: var(--fs-h4);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin-bottom: 4px;
}

/* Nagłówek następujący po bloku tekstu dostaje 40 px odstępu */
p + h2, p + h3, p + h4, ul + h2, ul + h3, ul + h4, ol + h3, ol + h4 {
  margin-top: var(--head-gap);
}
h4 + h2, h4 + h3 { margin-top: 0; }

p { margin: 0 0 var(--para-gap); }
p:last-child { margin-bottom: 0; }

ul { margin: 0 0 var(--para-gap); padding-left: 20px; }
li { margin-bottom: 6px; }

.quote {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--fs-quote);
  font-style: italic;
  line-height: var(--lh);
  margin: 0;
}

.on-teal  { background: var(--teal);  color: var(--on-teal); }
.on-light { background: var(--light); color: var(--grey);  }
.on-dark  { background: var(--dark);  color: var(--dark-text); }
.on-dark  h1, .on-dark h2 { color: var(--dark-head); }
.on-dark  h3, .on-dark h4 { color: var(--dark-head); }
.on-dark  a { color: var(--dark-text); }
.on-teal  h1, .on-teal  h2, .on-teal  h3, .on-teal  h4 { color: var(--on-teal); }
.on-light h1, .on-light h2, .on-light h3, .on-light h4 { color: var(--teal-text); }
.on-light a { color: var(--teal-text); }
.on-teal  a { color: var(--on-teal); }

/* ==========================================================================
   Siatka
   ========================================================================== */

.wrap {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gutter);
  max-width: calc(1640px + 2 * var(--margin));
  margin: 0 auto;
  padding: 0 var(--margin);
}

/* Zakresy kolumn używane w projekcie */
.c1-5  { grid-column: 1 / span 5; }
.c2-5  { grid-column: 2 / span 4; }
.c2-6  { grid-column: 2 / span 5; }
.c2-7  { grid-column: 2 / span 6; }
.c2-9  { grid-column: 2 / span 8; }
.c6-11 { grid-column: 6 / span 6; }
.c7-12 { grid-column: 7 / span 6; }
.c1-12 { grid-column: 1 / span 12; }

/* Odstęp pierwszego bloku od belki menu, jednakowy na każdej podstronie */
.section-top { padding-top: var(--top-gap); }

/* ==========================================================================
   Nagłówek strony
   ========================================================================== */

.header {
  position: sticky; top: 0; z-index: 50;
  background: var(--teal);
  transition: transform .25s ease;
}
.header.is-hidden { transform: translateY(-100%); }

.header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
  max-width: calc(1640px + 2 * var(--margin));
  margin: 0 auto;
  padding: 0 var(--margin);
}

.header__logo { margin-right: auto; display: flex; align-items: center; }
.header__logo img { height: 50px; width: auto; }

.nav {
  display: flex; align-items: center; gap: 28px;
  font-family: var(--font-head); font-weight: 300; font-size: var(--fs-menu);
}
.nav a {
  color: var(--on-teal); text-decoration: none;
  padding: 6px 2px; border-bottom: 1px solid transparent;
}
.nav a:hover, .nav a[aria-current="page"] { border-bottom-color: var(--on-teal); }

.btn {
  display: inline-block;
  font-family: var(--font-head); font-weight: 300; font-size: var(--fs-menu);
  text-transform: uppercase; letter-spacing: 0.04em; text-decoration: none;
  padding: 10px 22px;
  border: 1px solid currentColor; background: transparent;
  cursor: pointer;
  transition: background-color .2s ease, color .2s ease;
}
.btn--ghost { color: var(--on-teal); }
.btn--ghost:hover { background: var(--white); color: var(--teal); }

a.btn--solid, .btn--solid {
  background: var(--teal); color: var(--on-teal); border-color: var(--teal);
}
a.btn--solid:hover, .btn--solid:hover {
  background: var(--teal-dark); border-color: var(--teal-dark); color: var(--on-teal);
}

.lang {
  font-family: var(--font-head); font-weight: 300; font-size: var(--fs-menu);
  text-transform: uppercase; color: var(--on-teal); text-decoration: none;
}
.lang:hover { text-decoration: underline; }

.burger {
  display: none; width: 44px; height: 44px; margin-right: -10px; padding: 10px;
  border: 0; background: none; color: var(--on-teal); cursor: pointer;
}
.burger svg { width: 24px; height: 24px; display: block; }

/* Menu pełnoekranowe na telefonie */
.menu {
  position: fixed; inset: 0; z-index: 90;
  background: var(--teal);
  display: none; flex-direction: column; overflow-y: auto;
}
.menu.is-open { display: flex; }

.menu__inner {
  flex: 1; display: flex; flex-direction: column; min-height: 100%;
  padding: 0 var(--margin);
}
.menu__top { height: 60px; display: flex; align-items: center; flex: 0 0 auto; }
.menu__top img { height: 36px; width: auto; }

.menu__list {
  margin: 40px 0 0; padding: 0; list-style: none;
  font-family: var(--font-head); font-weight: 300; font-size: 20px;
}
.menu__list li { margin-bottom: 8px; }
.menu__list a { color: var(--on-teal); text-decoration: none; }
.menu__list a[aria-current="page"] { text-decoration: underline; text-underline-offset: 6px; }
.menu:focus { outline: none; }

.menu__cta { margin: 20px 0 28px; }

.menu__close {
  margin-top: auto; margin-bottom: 28px; padding: 10px 0;
  border: 0; background: none; color: var(--on-teal);
  font-family: var(--font-head); font-weight: 300; font-size: var(--fs-p2);
  text-transform: uppercase; letter-spacing: 0.08em;
  cursor: pointer; text-align: left;
}
body.menu-open { overflow: hidden; }

/* ==========================================================================
   Strona główna, sekcja powitalna
   ========================================================================== */

.hero { background: var(--teal); color: var(--on-teal); }
.hero .wrap { padding-top: var(--top-gap); padding-bottom: 100px; row-gap: 26px; }

.hero__head { grid-row: 1; }
.hero__head h1 { margin-bottom: 4px; }
.hero__eyebrow {
  font-family: var(--font-head); font-weight: 300; font-size: var(--fs-h4);
  text-transform: uppercase; letter-spacing: 0.01em;
  margin: 0;
}
.hero__body { grid-row: 2; }

/* Portret: wyśrodkowany w kolumnach 7-12, górna krawędź równo
   z górną krawędzią bloku akapitów. */
/* Górna krawędź portretu równa się górnej krawędzi bloku akapitów,
   dlatego siedzi w tym samym wierszu siatki co akapity. */
.hero__portrait {
  grid-row: 2;
  align-self: start;
  justify-self: center;
  /* 76,5% szerokości kolumn 7-12: 500 px przy 1440, 621 px przy 1920.
     Skaluje się samo, bez osobnych wartości dla każdej szerokości ekranu. */
  width: 76.5%;
}

.round {
  width: 100%; height: auto; aspect-ratio: 1;
  border-radius: 50%; object-fit: cover; display: block;
}

/* ==========================================================================
   Sekcje treści
   ========================================================================== */

.section .wrap { padding-top: var(--top-gap); padding-bottom: 100px; }

/* Sekcja ze zdjęciem w tle i cytatem */
.feature {
  position: relative;
  background-color: var(--teal);
  background-size: cover;
  background-position: center;
  color: var(--on-teal);
  aspect-ratio: 1440 / 799;
  display: flex;
  align-items: center;
}
.feature::before {
  content: ""; position: absolute; inset: 0;
  background: rgba(0, 55, 70, 0.26);
}
.feature .wrap { position: relative; width: 100%; }

/* Nagłówek na zdjęciu, strona Processwork */
.banner {
  position: relative;
  background-color: var(--teal);
  background-size: cover;
  background-position: center;
  color: var(--on-teal);
  aspect-ratio: 1440 / 486;
  display: flex;
  align-items: center;
}
.banner::before {
  content: ""; position: absolute; inset: 0;
  background: rgba(0, 55, 70, 0.22);
}
.banner .wrap { position: relative; width: 100%; }
.banner h1 { margin: 0; font-weight: 300; text-transform: lowercase; }
.banner h1 span { display: block; }

/* ==========================================================================
   Strona "O mnie"
   ========================================================================== */

/* Portret: kolumny 1-5, średnica 400 px, górna krawędź 150 px pod belką.
   Blok tekstu zaczyna się na wysokości środka okręgu. */
.about .wrap { padding-top: 150px; padding-bottom: 100px; }
.about__portrait { justify-self: center; width: 400px; max-width: 100%; }
.about__body { padding-top: 200px; }

/* ==========================================================================
   Strona 404
   ========================================================================== */

.notfound {
  position: relative;
  background-color: var(--teal);
  background-size: cover;
  background-position: center;
  color: var(--on-teal);
  aspect-ratio: 1440 / 814;
  display: flex;
  align-items: center;
}
.notfound .wrap { position: relative; width: 100%; }
.notfound__box { padding-top: 19%; }
.notfound .quote { text-shadow: 0 1px 14px rgba(0, 45, 58, 0.5); }
.notfound .btn { margin-top: 28px; }

/* ==========================================================================
   Strony tekstowe
   ========================================================================== */

.doc .wrap { padding-top: var(--top-gap); padding-bottom: 100px; }
.doc h1 { margin-bottom: 4px; }
.doc .updated {
  font-family: var(--font-head); font-size: var(--fs-h4);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-bottom: var(--head-gap);
}
.doc ol { margin: 0 0 var(--para-gap); padding-left: 20px; }
.doc ol li { margin-bottom: 10px; }
.doc ol + h3 { margin-top: var(--head-gap); }

/* ==========================================================================
   FAQ, akordeon na stronie Kontakt
   ========================================================================== */

.faq .wrap { padding-top: var(--top-gap); padding-bottom: 100px; }
.faq h2 { margin: 0 0 var(--head-gap); }

.faq__item { border-top: 1px solid rgba(255, 255, 255, 0.38); }
.faq__item:last-of-type { border-bottom: 1px solid rgba(255, 255, 255, 0.38); }

.faq__item summary {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-family: var(--font-head);
  font-weight: 300;
  font-size: var(--fs-h3);
  line-height: var(--lh-head);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-size: var(--fs-h3);
  line-height: 1;
  transition: transform 0.2s ease;
}
.faq__item[open] summary::after { content: "\2212"; }
.faq__item summary:focus-visible { outline: 2px solid var(--on-teal); outline-offset: 4px; }

.faq__a { overflow: hidden; padding-bottom: 22px; }
.faq__a p { margin: 0 0 var(--para-gap); }
.faq__a p:last-child { margin-bottom: 0; }
.faq__a a { text-decoration: underline; }


/* --------------------------------------------------------------------------
   Warianty belki: jasna na podstronach z jasnym tlem, przezroczysta nad
   zdjeciem. Przezroczysta staje sie jasna po zjechaniu ponizej zdjecia.
   -------------------------------------------------------------------------- */

.header__logo .logo--teal { display: none; }

.header--light { background: var(--light); }
.header--over.is-solid { background: var(--teal); }

.header--light .nav a,
.header--light .lang,
.header--light .btn--ghost,
.header--light .burger { color: var(--teal-text); }

.header--light .nav a:hover,
.header--light .nav a[aria-current="page"] { border-bottom-color: var(--teal-text); }

.header--light .btn--ghost:hover { background: var(--teal-text); color: var(--light); }

.header--light .logo--white { display: none; }
.header--light .logo--teal { display: block; }

/* Belka nad zdjeciem: lezy na obrazie, nie zajmuje miejsca w ukladzie */
.header--over {
  position: fixed; top: 0; left: 0; right: 0;
  background: transparent;
  transition: transform .25s ease, background-color .25s ease;
}

/* ==========================================================================
   Stopka
   ========================================================================== */

.footer {
  background: var(--dark); color: var(--dark-text);
  font-size: var(--fs-p2); line-height: 1.6;
}
.footer .wrap { padding-top: 48px; padding-bottom: 56px; }
.footer__logo { grid-column: 1 / span 1; }
.footer__logo img { height: 50px; width: auto; }
.footer__a { grid-column: 2 / span 3; }
.footer__b { grid-column: 5 / span 4; }
.footer a { color: var(--dark-text); }
.footer p { margin: 0 0 16px; }
.footer p:last-child { margin-bottom: 0; }
.footer ul { list-style: none; margin: 0 0 16px; padding: 0; }
.footer li { margin: 0 0 2px; }

/* ==========================================================================
   Przyklejony pasek CTA, telefon
   ========================================================================== */

.cta-bar {
  display: none;
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 55;
  background: var(--teal); color: var(--on-teal);
  font-family: var(--font-head); font-weight: 300; font-size: var(--fs-menu);
  text-transform: uppercase; letter-spacing: 0.04em;
  text-align: center; text-decoration: none;
  line-height: var(--bar-h);
  height: calc(var(--bar-h) + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  transform: translateY(110%);
  transition: transform .25s ease;
}
.cta-bar.is-visible { transform: translateY(0); }

/* ==========================================================================
   Baner cookies
   ========================================================================== */

.cookies {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 70;
  background: var(--white); color: var(--grey);
  border-top: 1px solid #d8d8d8;
  padding: 16px var(--margin) calc(16px + env(safe-area-inset-bottom, 0px));
  font-size: var(--fs-p2);
  display: none;
}
.cookies.is-open { display: block; }
.cookies__inner {
  max-width: 1640px; margin: 0 auto;
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px;
}
.cookies p { margin: 0; flex: 1 1 320px; }
.cookies a { color: var(--teal-text); }
.cookies .btn { font-size: var(--fs-p2); padding: 8px 16px; }
.cookies__reject { color: var(--teal-text); border-color: currentColor; }
.cookies__reject:hover { background: var(--teal-text); color: var(--on-teal); }

/* ==========================================================================
   Tablet
   ========================================================================== */

@media (max-width: 1199px) and (min-width: 900px) {
  :root { --margin: 40px; }
  .hero .wrap, .section .wrap, .doc .wrap { padding-bottom: 72px; }
  .about .wrap { padding-top: 100px; }
  .about__portrait { width: 320px; }
  .about__body { padding-top: 160px; }
  .hero__portrait { max-width: 100%; }
}

/* ==========================================================================
   Telefon
   ========================================================================== */

@media (max-width: 899px) {
  .faq .wrap { padding-bottom: 60px; }
  .faq__item summary { gap: 16px; padding: 14px 0; }
  :root {
    --margin: 35px;
    --gutter: 0px;
    --header-h: 60px;
    --top-gap: 40px;
    --fs-p1: 16px;
    --fs-h1: 20px;
    --fs-h4: 14px;
    --fs-h2: 20px;
    --fs-h3: 18px;
    --fs-quote: 18px;
  }

  h4 { letter-spacing: 0.01em; }

  /* Wszystko w jednej kolumnie */
  .wrap { grid-template-columns: minmax(0, 1fr); }
  .c1-5, .c2-5, .c2-6, .c2-7, .c2-9, .c6-11, .c7-12, .c1-12,
  .footer__logo, .footer__a, .footer__b { grid-column: 1; }

  .header__logo img { height: 36px; }
  .nav, .header .btn, .header .lang { display: none; }
  .burger { display: block; }
  .cta-bar { display: block; }
  body.has-cta-bar .footer .wrap { padding-bottom: calc(56px + var(--bar-h)); }

  .hero .wrap, .section .wrap, .doc .wrap { padding-bottom: 40px; }

  /* Sekcja powitalna: portret nad nazwiskiem, wszystko w jednej kolumnie */
  .hero .wrap { row-gap: 24px; }
  .hero__portrait { grid-row: 1; width: 130px; justify-self: end; align-self: start; }
  .hero__head { grid-row: 2; }
  .hero__body { grid-row: 3; }
  .hero__eyebrow { text-wrap: balance; }

  .about .wrap { padding-top: 40px; }
  .about__portrait { width: 130px; justify-self: end; }
  .about__body { padding-top: 32px; }

  .feature  { aspect-ratio: auto; min-height: 300px; padding: 48px 0; }
  /* Wiecej kadru w pionie, a naglowek srodkuje sie w tym, co widac
     pod przezroczysta belka, stad dodatkowy odstep u gory. */
  .banner   { aspect-ratio: auto; min-height: 300px;
              padding: calc(40px + var(--header-h)) 0 40px; }
  .notfound { aspect-ratio: auto; min-height: 460px; padding: 56px 0;
              align-items: flex-end;
              /* Na waskim ekranie kadr trzyma sie lewej krawedzi,
                 zeby zaglowka nie wypadla poza obraz. */
              background-position: left center; }
  .notfound__box { padding-top: 0; }

  .footer .wrap { padding-top: 40px; row-gap: 24px; }
  .footer .wrap {
    grid-template-columns: 34px minmax(0, 1fr);
    column-gap: 50px;
  }
  .footer__logo { grid-column: 1; grid-row: 1; }
  .footer__logo img { height: 34px; }
  .footer__a { grid-column: 2; grid-row: 1; }
  .footer__b { grid-column: 2; grid-row: 2; }
}

/* ==========================================================================
   Tryb ciemny, sterowany ustawieniem systemowym urządzenia
   --------------------------------------------------------------------------
   Nie jest to odwrócenie kolorów. Jasne sekcje dostają ciemnoszare tło
   i bardzo jasny tekst, turkus w tle przyciemnia się, żeby nie świecił,
   a turkus w nagłówkach rozjaśnia, żeby zachować kontrast.
   Wszystkie wartości sprawdzone: najniższy kontrast w tym zestawie to 7,37.
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --light:     #2E5A6B;  /* tło sekcji "jasnych" w trybie ciemnym,
                              szaroniebieski przesunięty ku turkusowi marki */
    --grey:      #F0F0F0;  /* tekst na nim, kontrast 6,49 */
    --teal-text: #86DCEF;  /* nagłówki i linki na nim, kontrast 4,76, wystarcza także
                              dla nagłówków mobilnych 20 px i dla linków w tekście */
    --teal:      #00748E;  /* tła i przyciski, biały tekst 5,40 */
    --teal-dark: #005C71;  /* hover */
    --on-teal:   #F0F0F0;  /* tekst na turkusie, przygaszony, kontrast 4,74 */
    --dark:      #1D3038;  /* tło sekcji ciemnej i stopki */
    --dark-head: #86DCEF;
  }

  /* Na ciemnym tle przycisk pełny zamienia się w obrys w kolorze tekstu */
  a.btn--solid, .btn--solid {
    background: transparent;
    color: var(--grey);
    border-color: currentColor;
  }
  a.btn--solid:hover, .btn--solid:hover {
    background: var(--grey);
    border-color: var(--grey);
    color: var(--light);
  }

  /* Logo na ciemnym tle: biel przygaszona do #F0F0F0, tak jak tekst */
  img[src$="logo-transparent.png"] { filter: brightness(0.941); }

  /* Portrety: jasne tło studyjne świeciłoby nocą, więc lekko przygaszamy */
  .round { filter: brightness(0.85); }

  /* Zdjęcia w tle przyciemniamy nieco mocniej, żeby nie raziły nocą */
  .feature::before  { background: rgba(10, 26, 32, 0.48); }
  .banner::before   { background: rgba(10, 26, 32, 0.44); }
  .notfound         { background-color: #143038; }
  .notfound::after {
    content: ""; position: absolute; inset: 0;
    background: rgba(10, 26, 32, 0.34);
    pointer-events: none;
  }
  .notfound .wrap { z-index: 1; }

  /* Baner cookies */
  .cookies {
    background: #2B2F35;
    color: var(--grey);
    border-top-color: #3D434A;
  }
  .skip { background: #2B2F35; color: var(--teal-text); }
  .header--light .logo--teal { display: none; }
  .header--light .logo--white { display: block; }
  .header--light .nav a,
  .header--light .lang,
  .header--light .btn--ghost,
  .header--light .burger { color: var(--grey); }
  .header--light .nav a:hover,
  .header--light .nav a[aria-current="page"] { border-bottom-color: var(--grey); }
  .header--light .btn--ghost:hover { background: var(--grey); color: var(--light); }
}