@font-face {
  font-family: "Barlow", sans-serif;
}
@font-face {
  font-family: "Barlow Condensed", sans-serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul[role=list],
ol[role=list] {
  list-style: none;
}

html:focus-within {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  line-height: 1.5;
}

a:not([class]) {
  text-decoration-skip-ink: auto;
}

img,
picture {
  max-width: 100%;
  display: block;
}

input,
button,
textarea,
select {
  font: inherit;
}

@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
:root {
  --global-margin: 3rem;
  --section-spacing: 8rem;
  --containter-width: 1600px;
  --fs-700: clamp(2.426rem, 2.134rem + 1.457vw, 3.359rem);
  --fs-600: clamp(2.022rem, 1.779rem + 1.214vw, 2.799rem);
  --fs-500: clamp(1.685rem, 1.482rem + 1.012vw, 2.333rem);
  --fs-400: clamp(1.404rem, 1.235rem + 0.843vw, 1.944rem);
  --fs-300: clamp(1.17rem, 1.029rem + 0.703vw, 1.62rem);
  --fs-200: clamp(0.975rem, 0.857rem + 0.585vw, 1.35rem);
  --fs-100: clamp(0.813rem, 0.715rem + 0.487vw, 1.125rem);
  --clr-brand-black: hsl(23, 15%, 11%);
  --clr-brand-red: hsl(3, 77%, 48%);
  --clr-brand-green: hsl(146, 100%, 28%);
  --clr-brand-blue: hsl(205, 100%, 30%);
  --clr-gray-white: hsl(0, 0%, 100%);
  --clr-gray-100: hsl(0, 0%, 90%);
  --clr-gray-200: hsl(0, 0%, 80%);
  --clr-gray-300: hsl(0, 0%, 70%);
  --clr-gray-400: hsl(0, 0%, 60%);
  --clr-gray-500: hsl(0, 0%, 50%);
  --clr-gray-600: hsl(0, 0%, 40%);
  --clr-gray-700: hsl(0, 0%, 30%);
  --clr-gray-800: hsl(0, 0%, 20%);
  --clr-gray-900: hsl(0, 0%, 10%);
  --clr-gray-black: hsl(0, 0%, 0%);
}
@media only screen and (min-width: 870px) {
  :root {
    --section-spacing: 10rem;
  }
}
@media only screen and (min-width: 1600px) {
  :root {
    --section-spacing: 12rem;
  }
}

body {
  font-size: var(--fs-100);
  line-height: 1.8em;
  font-family: "Poppins", sans-serif;
  font-optical-sizing: auto;
  font-weight: 300;
  font-style: normal;
}

b,
strong {
  font-weight: 600;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  line-height: 1.4em;
  font-family: "Oswald", sans-serif;
  font-optical-sizing: auto;
  font-weight: 600;
  font-style: normal;
  color: var(--clr-gray-white);
}

h1,
.h1 {
  font-size: var(--fs-700);
}

h2,
.h2 {
  font-size: var(--fs-600);
}

h3,
.h3 {
  font-size: var(--fs-500);
}

h4,
.h4 {
  font-size: var(--fs-400);
}

h5,
.h5 {
  font-size: var(--fs-300);
}

h6,
.h6 {
  font-size: var(--fs-200);
}

a {
  color: var(--clr-gray-white);
}

.container {
  width: min(100% - var(--global-margin), var(--containter-width));
  margin-inline: auto;
}
.container.pad {
  padding: 3vw;
}

.flow > * + * {
  margin-top: var(--flow-spacer, 0.75em);
}

#mainnav {
  font-weight: 500;
  overflow: hidden;
  padding-top: 10px;
}
#mainnav a {
  display: block;
  float: left;
  margin: 10px;
  padding: 0.5em 1em;
  color: var(--clr-gray-white);
  text-decoration: none;
}
#mainnav a:hover, #mainnav a:focus {
  text-decoration: underline;
}
#mainnav a.logo {
  margin-top: 0;
}
#mainnav .hamburger {
  display: none;
}
@media screen and (max-width: 870px) {
  #mainnav a:not(:first-child) {
    display: none;
  }
  #mainnav a.hamburger {
    float: right;
    display: block;
  }
  #mainnav.nav--open {
    position: relative;
    background-color: var(--clr-gray-black);
  }
  #mainnav.nav--open a {
    float: none;
    display: block;
    text-align: left;
  }
  #mainnav.nav--open a.hamburger {
    position: absolute;
    right: 0;
    top: 0;
  }
}

.menu-toggle__bar1, .menu-toggle__bar2, .menu-toggle__bar3 {
  width: 21px;
  height: 3px;
  background-color: var(--clr-gray-white);
  margin: 4px 0;
  transition: 0.3s;
}

.menu-toggle--open .menu-toggle__bar1 {
  transform: translate(0, 7px) rotate(-45deg);
}

.menu-toggle--open .menu-toggle__bar2 {
  opacity: 0;
}

.menu-toggle--open .menu-toggle__bar3 {
  transform: translate(0, -7px) rotate(45deg);
}

body {
  background-color: var(--clr-gray-black);
  color: var(--clr-gray-200);
  scroll-behavior: smooth;
  background-image: radial-gradient(farthest-corner at 200px 200px, var(--clr-gray-800), var(--clr-gray-black));
}
body.article {
  background-color: var(--clr-gray-white);
  color: var(--clr-gray-800);
  background-image: none;
}

body > header {
  background: linear-gradient(to bottom, black, transparent);
  position: fixed;
  z-index: 3;
  width: 100%;
}

#canvas {
  background: transparent;
  width: 100%;
  height: 100svh;
  z-index: 1;
  top: 0;
  left: 0;
  position: fixed;
}

.logo img {
  height: 80px;
}

.hero {
  background-size: cover;
  min-height: 80svh;
  padding-top: var(--section-spacing);
}

@keyframes flicker {
  0%, 19.9%, 22%, 62.9%, 64%, 64.9%, 70%, 100% {
    opacity: 0.99;
  }
  20%, 21.9%, 63%, 63.9%, 65%, 69.9% {
    opacity: 0.4;
  }
}
#jtc {
  background-image: url("../images/section-jtc.jpg");
  background-position: 28% center;
}
#jtc .slogan::after {
  content: "";
  display: block;
  background-color: var(--clr-brand-red);
  width: 60px;
  height: 180px;
  transform: skew(20deg);
  position: relative;
  float: right;
  animation: flicker 3s linear infinite;
}
@media only screen and (min-width: 1600px) {
  #jtc .slogan::after {
    position: absolute;
    right: 40px;
  }
}

#strategia {
  background-image: url("../images/section-strategia.jpg");
  background-position: 50% center;
}
#strategia .slogan::after {
  content: "";
  display: block;
  background-color: var(--clr-brand-green);
  width: 60px;
  height: 180px;
  transform: skew(20deg);
  position: relative;
  float: right;
  animation: flicker 3s linear infinite;
}
@media only screen and (min-width: 1600px) {
  #strategia .slogan::after {
    position: absolute;
    right: 40px;
  }
}

#ludzie {
  background-image: url("../images/section-ludzie.jpg");
  background-position: 63% center;
}
#ludzie .slogan::after {
  content: "";
  display: block;
  background-color: var(--clr-brand-blue);
  width: 60px;
  height: 180px;
  transform: skew(20deg);
  position: relative;
  float: right;
  animation: flicker 3s linear infinite;
}
@media only screen and (min-width: 1600px) {
  #ludzie .slogan::after {
    position: absolute;
    right: 40px;
  }
}

#oferta {
  background-image: url("../images/section-oferta.jpg");
  background-position: 28% center;
}

#klienci {
  background-image: url("../images/section-klienci.jpg");
  background-position: 75% center;
}
#klienci span {
  font-weight: 600;
  color: var(--clr-gray-white);
}

#kontakt {
  z-index: 2;
  position: relative;
  pointer-events: none;
}
#kontakt h1 {
  font-size: var(--fs-500);
  margin-bottom: var(--fs-400);
}
#kontakt h2 {
  font-size: var(--fs-300);
  margin-bottom: var(--fs-200);
}
#kontakt a {
  pointer-events: auto;
}

#partners {
  background-color: var(--clr-gray-800);
  padding: calc(var(--section-spacing) / 2) 0;
}
#partners h1 {
  font-size: var(--fs-500);
  margin-bottom: var(--fs-400);
}
#partners img {
  max-width: 200px;
}
#partners a {
  pointer-events: auto;
}

.logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2em;
  z-index: 2;
  position: relative;
}

.slogan {
  background-color: hsla(0, 0%, 0%, 0.8);
  padding: 3vw;
  width: calc(100% - var(--global-margin));
  max-width: 70ch;
  margin-inline: auto;
  z-index: 2;
  position: relative;
}
@media only screen and (min-width: 1600px) {
  .slogan.pullleft {
    margin-inline: 0;
    left: calc((100% - var(--containter-width)) / 2);
  }
  .slogan.pullright {
    margin-inline: 0;
    left: calc((100% - var(--containter-width)) / 2 + var(--containter-width) / 2);
  }
}
.slogan h1 {
  font-size: var(--fs-400);
  line-height: var(--fs-500);
  margin-bottom: 0.5em;
}
.slogan p {
  font-size: var(--fs-100);
}

.columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 3rem;
  margin-bottom: var(--fs-300);
}

.testimonials {
  position: relative;
}
.testimonials p {
  opacity: 0.2;
  transition: opacity 0.5s ease-in-out;
}
.testimonials p.active {
  opacity: 1;
}

.article {
  margin: 2em 0;
}
.article h1 {
  margin: 1em 0 0.5em 0;
}
.article h1, .article h2, .article h3, .article h4, .article h5, .article h6,
.article .h1, .article .h2, .article .h3, .article .h4, .article .h5, .article .h6 {
  color: var(--clr-gray-600);
  line-height: 3em;
}
.article p {
  margin-bottom: 0.5em;
}
.article a {
  color: var(--clr-gray-black);
}

.return {
  margin: 2em 0;
}

/* abstracts */
/* base */
/* utilities */
/* components */
/* layouts */