/* Strona główna (szablon G): hero, sekcje oferty, karuzele, cennik, blog, kontakt i jasna stopka.
   Wymiary z obecnej strony (#18); tokeny: docs/ARCHITEKTURA.md, sekcja 4. Mobile-first. */

/* Wspólne elementy sekcji */
.section-title { max-width: 650px; margin: 0 auto 40px; text-align: center; }
.section-title__h {
  margin: 0 0 14px;
  font-size: 1.5625rem;
  font-weight: var(--fw-heading-strong);
  line-height: 1.3;
}
.section-title p { margin: 0; color: var(--c-heading); }
.section-title--light .section-title__h { margin-bottom: 4px; }
.section-title--light .section-title__h, .section-title--light p { color: var(--c-on-brand); }

.btn-outline {
  display: inline-block;
  min-height: 50px;
  padding: 0 30px;
  border: 2px solid var(--c-on-brand);
  border-radius: var(--radius-btn);
  color: var(--c-on-brand);
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 46px;
  text-transform: uppercase;
  transition: background 0.3s, color 0.3s;
}
.btn-outline:hover, .btn-outline:focus-visible { background: var(--c-on-brand); color: var(--c-navy); }

/* Kotwice #korzysci i #kontakt: sekcja nie chowa się pod przyklejonym nagłówkiem (87 px). */
@media (min-width: 992px) {
  #korzysci, #kontakt { scroll-margin-top: 87px; }
}
@media (min-width: 1025px) {
  .section-title__h { font-size: var(--fs-h3-tile); line-height: 1.2; }
}

/* Hero: gradient, fale u dołu, mockup na komputerze */
.hero {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: center;
  min-height: 650px;
  padding: 60px 0;
  background: var(--g-brand-text);
  color: var(--c-on-brand);
}
.hero::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  aspect-ratio: 1920 / 392;
  background: url("/assets/img/tla/fale.svg") center bottom / 100% 100% no-repeat;
}
.hero__inner { display: grid; align-items: center; }
.hero__title {
  margin: 0;
  color: var(--c-on-brand);
  font-size: 1.8rem;
  line-height: 1.3;
}
.hero__lead { margin: 0 0 var(--s-4); padding-top: 38px; font-size: 1.25rem; }
.hero .btn-outline { margin-top: 40px; }
.hero__inner > picture { display: none; } /* lazy: na telefonie ukryty mockup się nie pobiera */

@media (min-width: 992px) {
  .hero { min-height: 900px; padding: 87px 0 0; }
  .hero__inner { grid-template-columns: 7fr 5fr; }
  .hero__title { font-size: var(--fs-h2); line-height: var(--lh-h2); }
  .hero__lead { padding: 20px 115px 0 0; font-size: 1.26rem; }
  .hero__inner > picture { display: block; width: 649px; max-width: none; margin: 94px 0 0 -117px; }
}
@media (min-width: 992px) and (max-width: 1199px) {
  .hero__inner > picture { width: 520px; margin-left: -80px; }
}

/* Inżynieria wsparta technologią */
.intro { padding: 73px 0 60px; }
.intro__grid { display: grid; gap: 30px; align-items: start; }
.intro__img { border-radius: 10px; }
.intro__text { text-align: center; }
.intro__text p { margin-bottom: 11px; }

@media (min-width: 768px) {
  .intro { padding-bottom: 110px; }
  .intro__grid { grid-template-columns: 550fr 541fr; }
  .intro__text { text-align: left; }
}

/* Funkcjonalności: 10 pozycji z ikoną w kółku, 3 kolumny */
.features { padding: 70px 0 150px; background: var(--g-brand-text); color: var(--c-on-brand); }
.features .section-title { margin-bottom: 60px; }
.features__grid {
  display: grid;
  gap: 50px 36px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}
.feature { max-width: 324px; margin: 0 auto; text-align: center; }
.feature__icon {
  display: grid;
  place-items: center;
  width: 50px; height: 50px;
  margin: 0 auto;
  border: 2px solid var(--c-on-brand);
  border-radius: 50%;
}
.feature__icon { transition: background-color 0.5s, color 0.5s; }
.feature:hover .feature__icon, .feature:focus-within .feature__icon { background: var(--c-on-brand); color: var(--c-navy); }
.feature__icon svg { width: auto; height: 24px; }
.feature__title { margin: 0; padding-top: 18px; color: var(--c-on-brand); font-size: 1.25rem; line-height: 24px; }
.feature p { margin: 0; padding-top: 18px; }
.features__more { margin: 40px 0 0; text-align: center; }

@media (min-width: 768px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1025px) {
  .features { padding: 102px 0 190px; }
  .features__grid { grid-template-columns: repeat(3, 1fr); }
  .feature:last-child:nth-child(3n + 1) { grid-column: 2; }
}

/* Dla kogo? */
.audience { padding: 100px 0 110px; }
.audience__grid {
  display: grid;
  gap: 30px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.audience__item img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.audience__title { margin: 10px 0 0; font-size: 1.125rem; text-align: center; }

@media (min-width: 768px) {
  .audience__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1025px) {
  .audience__grid { grid-template-columns: repeat(4, 1fr); }
}

/* Karuzele (carousel.js): przewijany rząd ze scroll-snap; bez JS zwykłe przewijanie */
.carousel { position: relative; }
.carousel__track {
  display: flex;
  gap: 30px;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  list-style: none;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
}
.carousel__track::-webkit-scrollbar { display: none; }
.carousel__item { flex: none; scroll-snap-align: center; }
.carousel__btn {
  position: absolute;
  top: 50%;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 50px; height: 50px;
  margin-top: -25px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--g-brand-text);
  box-shadow: var(--shadow-sm);
  color: var(--c-on-brand);
  opacity: 0;
  transition: opacity 0.3s;
}
.carousel__btn svg { width: 16px; height: 16px; }
.carousel:hover .carousel__btn, .carousel__btn:focus-visible { opacity: 1; }
@media (hover: none) {
  .carousel__btn { display: none; } /* dotyk: przesuwanie palcem, bez niewidocznych przycisków */
}
.carousel__btn--prev { left: 8px; }
.carousel__btn--next { right: 8px; }

/* Zobacz jak to działa: środkowy zrzut w ramce laptopa, boczne przygaszone */
.screens { --slide-w: 275px; --slide-h: 173px; padding: 20px 0 30px; }
.screens__carousel { isolation: isolate; padding: 26px 0 40px; }
.screens__carousel::before, .screens__carousel::after {
  content: "";
  position: absolute;
  left: 50%;
  z-index: -1;
  transform: translateX(-50%);
}
.screens__carousel::before {
  top: 0;
  width: min(calc(var(--slide-w) + 56px), 100%);
  height: calc(var(--slide-h) + 52px);
  border-radius: 16px 16px 0 0;
  background: var(--c-bg);
  box-shadow: var(--shadow-sm);
}
.screens__carousel::after {
  top: calc(var(--slide-h) + 52px);
  width: min(calc(var(--slide-w) * 1.43), 100%);
  height: 14px;
  border-radius: 0 0 50% 50% / 0 0 100% 100%;
  background: var(--c-bg-soft);
  box-shadow: var(--shadow-md);
}
.screens .carousel__track { padding-inline: calc(50% - var(--slide-w) / 2); }
.screens .carousel__track:focus-visible { outline-offset: -2px; }
/* Kontrola przed slajdami w DOM, wizualnie pod laptopem; widoczna również bez hover. */
.carousel__rotation {
  display: block;
  position: absolute;
  top: calc(var(--slide-h) + 78px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 44px;
  min-height: 44px;
  width: max-content;
  max-width: calc(100% - 16px);
  padding: 8px 20px;
  border: 1px solid var(--c-link);
  border-radius: var(--radius-btn);
  background: var(--c-bg);
  color: var(--c-link);
  font: inherit;
  font-weight: 500;
  line-height: 1.4;
}
.carousel__rotation[aria-disabled="true"] { cursor: default; }
.screens__carousel:has(.carousel__rotation:not([hidden])) { padding-bottom: 110px; }
.screens .carousel__track.is-rotating { scroll-snap-type: none; scroll-behavior: auto; }
.screens .carousel__item, .screens .carousel__wrap-slide { width: var(--slide-w); }
.screens .carousel__wrap-slide { flex: none; scroll-snap-align: center; }
.screens .carousel__wrap-slide img { width: 100%; opacity: 0.1; }
.screens .carousel__wrap-slide.is-center img { opacity: 1; }
.screens .carousel__item img { width: 100%; }
.screens .is-ready .carousel__item:not(.is-center) img { opacity: 0.1; } /* is-ready ustawia carousel.js */
.screens .carousel__item img { transition: opacity 0.5s; }

@media (min-width: 768px) {
  .screens { --slide-w: 422px; --slide-h: 266px; padding: 50px 0 182px; }
}
@media (min-width: 1200px) {
  .screens .carousel__btn--prev { left: 200px; }
  .screens .carousel__btn--next { right: 200px; }
}

/* Korzyści: 12 punktów z ikoną na gradiencie */
.benefits { padding: 50px 0 20px; }
.benefits__grid {
  display: grid;
  gap: 60px 30px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}
.benefit { max-width: 353px; margin: 0 auto; text-align: center; }
.benefit__icon {
  display: grid;
  place-items: center;
  width: 80px; height: 80px;
  margin: 0 auto;
  border-radius: 50%;
  background: var(--g-brand);
  color: var(--c-on-brand);
}
/* Dwie połówki obrazu mają dokładne kolory gradientu przed i po najechaniu. */
.benefit__icon {
  background-image: linear-gradient(90deg, var(--c-blue) 0%, var(--c-navy) 50%, var(--c-blue) 100%);
  background-size: 200% 100%;
  background-position: 0% 0;
  transition: background-position 0.5s;
}
.benefit__icon:hover, .benefit:focus-within .benefit__icon { background-position: 100% 0; }
.benefit__icon svg { width: 47px; height: 47px; }
.benefit__title {
  margin: 0;
  padding: 26px 0 14px;
  color: var(--c-text-strong);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.2;
}

@media (min-width: 768px) {
  .benefits__grid { grid-template-columns: repeat(2, 1fr); gap: 40px 30px; }
}
@media (min-width: 1025px) {
  .benefits__grid { grid-template-columns: repeat(3, 1fr); }
}

/* Pasek CTA: zdjęcie pod gradientem marki (80%) */
.cta {
  position: relative;
  isolation: isolate;
  padding: 70px 0 140px;
  background: center top / cover no-repeat url("/assets/img/tla/cta-960.jpg");
  background-image: image-set(url("/assets/img/tla/cta-960.webp") type("image/webp"), url("/assets/img/tla/cta-960.jpg") type("image/jpeg"));
  color: var(--c-on-brand);
  text-align: center;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--g-brand-text);
  opacity: 0.8;
}
.cta__kicker, .cta__title {
  margin: 0 0 15px;
  color: var(--c-on-brand);
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: var(--fw-heading);
  line-height: 1.2;
}
.cta__text { font-size: 0.9375rem; }
.cta .btn-outline { margin-top: 40px; }
.cta__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 40px; }
.cta__actions .btn-outline { margin-top: 0; }
.cta__actions a:focus-visible { outline-color: var(--c-on-brand); }
.video-dialog__close:focus-visible { outline-color: var(--c-on-brand); outline-offset: -4px; }

@media (min-width: 768px) {
  .cta { text-align: left; }
  .cta__actions { justify-content: flex-start; }
  .cta__text { font-size: 1rem; }
}
@media (min-width: 1025px) {
  .cta {
    margin-top: 120px;
    padding: 110px 0 115px;
    background-image: url("/assets/img/tla/cta-1920.jpg");
    background-image: image-set(url("/assets/img/tla/cta-1920.webp") type("image/webp"), url("/assets/img/tla/cta-1920.jpg") type("image/jpeg"));
  }
  .cta__title { font-size: 2.25rem; }
}

/* Logotypy klientów: 2 na telefonie, 5 na komputerze, autoprzewijanie z carousel.js */
.clients { padding: 40px 0; background: var(--c-bg-soft); }
.clients__carousel { max-width: calc(var(--container) + 30px); margin: 0 auto; padding-inline: var(--gutter); }
.clients .carousel__item { width: calc((100% - 30px) / 2); scroll-snap-align: start; }
.clients .carousel__item img { width: 100%; max-width: 194px; margin: 0 auto; }

@media (min-width: 768px) {
  .clients .carousel__item { width: calc((100% - 90px) / 4); }
}
@media (min-width: 1025px) {
  .clients .carousel__item { width: calc((100% - 120px) / 5); }
}

/* FAQ PL i EN: natywne details działają także bez JavaScript. */
.faq { padding: 70px 0 100px; }
.faq__grid { display: grid; gap: 30px; align-items: start; }
.faq__grid > picture { display: block; }
.faq__items { min-width: 0; }
.faq details { margin-bottom: 15px; border: 1px solid var(--c-line-strong); border-radius: var(--radius-btn); }
.faq summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  padding: 12px 18px;
  color: var(--c-text-strong);
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: var(--fw-heading);
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; width: 18px; flex-shrink: 0; margin-left: auto; }
.faq details[open] summary::after { content: "−"; }
.faq summary:hover, .faq details[open] summary { color: var(--c-link); }
.faq__answer { padding: 0 18px 16px; overflow-wrap: anywhere; }
.faq__answer p:last-child { margin-bottom: 0; }
@media (min-width: 768px) {
  .faq__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

/* Wycena PL: indywidualna oferta zamiast publicznych kart cenowych (#58). */
.quote { padding: 103px 0 111px; text-align: center; }
.quote .container { max-width: 800px; }
.quote .section-title { margin-bottom: 30px; }

/* Blog: 3 najnowsze wpisy */
.blog-teaser { padding: 0 0 80px; }
/* Kontakt: formularz na gradiencie i miejsce na mapę */
.contact { padding: 50px 0 30px; background: var(--g-brand-text); color: var(--c-on-brand); }
.contact__grid { display: grid; gap: 30px 20px; max-width: 1100px; margin: 0 auto; }
.contact .contact-form input[type="text"], .contact .contact-form input[type="tel"],
.contact .contact-form input[type="email"], .contact .contact-form textarea {
  border-color: var(--c-on-brand);
  background: transparent;
  color: var(--c-on-brand);
}
.contact .contact-form textarea { border-color: var(--c-line-strong); }
.contact .contact-form ::placeholder { color: var(--c-on-brand); }
.contact .contact-form :focus-visible { outline-color: var(--c-on-brand); }
.contact .contact-form__info a:hover { color: var(--c-on-brand); }
.contact .contact-form__submit { background: var(--c-bg); color: var(--c-text); }
/* Komunikaty formularza na gradiencie: biały tekst, pogrubiony (czerwony nie ma tu kontrastu). */
.contact .contact-form__status, .contact .contact-form [aria-invalid="true"] { border-color: var(--c-on-brand); }
.contact .contact-form__error { color: var(--c-on-brand); font-weight: 700; }
.contact .contact-form__status a { color: var(--c-on-brand); text-decoration: underline; }
.contact .contact-form__submit:hover { background: var(--c-bg-soft); color: var(--c-heading); }

.map-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s-4);
  min-height: 386px;
  padding: var(--s-5);
  border: 3px solid var(--c-on-brand);
  text-align: center;
}
.map-box__address { margin: 0; }
.map-box__btn {
  min-height: 45px;
  padding: 0 30px;
  border: 2px solid var(--c-on-brand);
  border-radius: var(--radius-btn);
  background: none;
  color: var(--c-on-brand);
  font-family: var(--font-heading);
  font-weight: 500;
  text-transform: uppercase;
}
.map-box__btn:hover { background: var(--c-on-brand); color: var(--c-navy); }
.map-box__link { text-decoration: underline; }
.map-box__link:hover { color: var(--c-on-brand); }
.map-box .map-frame { min-height: 380px; }
.map-box:has(.map-frame) { padding: 0; }

@media (min-width: 1025px) {
  .contact { padding: 103px 0 74px; }
  .contact__grid { grid-template-columns: 2fr 1fr; align-items: start; }
}

/* Stopka strony głównej: jasna, z kolorowym logo i ciemnym paskiem praw autorskich */
.site-footer__main { background: var(--c-bg); color: var(--c-text); }
.site-footer__title { color: var(--c-heading); }
.site-footer__list a:hover { color: var(--c-link); }
.site-footer__logo-white { display: none; }
.site-footer__logo-color { display: block; }
.site-footer__bottom { padding: 12px 33px 20px; background: var(--c-bg-dark-2); color: var(--c-on-brand); }
.site-footer__bottom a:hover { color: var(--c-on-brand); text-decoration: underline; }

@media (min-width: 768px) {
  .site-footer__bottom { justify-content: flex-end; padding-right: 100px; } /* miejsce obok linku „do góry”, jak we wspólnej stopce (#41) */
}

@media (prefers-reduced-motion: reduce) {
  .benefit__icon { transition: none; }
}