html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
}
body {
  line-height: 1.3;
}
ol,
ul {
  list-style: none;
}
blockquote,
q {
  quotes: none;
}
blockquote:before,
blockquote:after,
q:before,
q:after {
  content: "";
  content: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}

html {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 62.5%;
}

@media (max-width: 850px) {
  html {
    font-size: 50%;
  }
}

body > * {
  overflow: hidden;
}

.heading-primary {
  font-size: 4rem;
  font-weight: 600;
}

.heading-secondary {
  font-size: 2.2rem;
}

.heading-tertiary {
  font-size: 1.8rem;
}

.text-cont {
  font-size: 1.4rem;
}

@media (max-width: 768px) {
  .big-img {
    display: none;
  }
}

@media (min-width: 769px) {
  .small-img {
    display: none;
  }
}

.section-energy,
.section-kg,
.section-deep {
  position: relative;
}

.energy-img {
  width: 100%;
  margin-bottom: -5px;
}

.energy-text,
.kg-text,
.deep_text {
  position: absolute;
  width: 60%;
  left: 0;
  right: 0;
  margin: 0 auto;
  top: 5vw;
  text-align: center;
}

.deep_text {
  color: white;
}

.steam-text {
  width: 60%;
  margin: 0 auto;
  text-align: center;
  padding: 5rem 0;
}

@media (max-width: 768px) {
  .energy-text,
  .kg-text,
  .steam-text {
    width: 80%;
    top: 15vw;
  }
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: 80%;
  margin: 0 auto;
  padding: 5rem 0;
  gap: 1rem;
}

.grid-cell-1,
.grid-cell-2,
.grid-cell-3,
.grid-cell-4 {
  position: relative;
}

.grid-cell-1 img,
.grid-cell-2 img,
.grid-cell-3 img,
.grid-cell-4 img {
  width: 100%;
  height: 100%;
}

.grid-cell-1 h3,
.grid-cell-2 h3,
.grid-cell-3 h3,
.grid-cell-4 h3 {
  position: absolute;
  margin: 0 auto;
  left: 0;
  right: 0;
  top: 2vw;
  width: fit-content;
  text-align: center;
}

.grid-cell-1 {
  grid-area: 1 / 1 / 3 / 2;
}

.grid-cell-4 {
  grid-area: 2 / 2 / 3 / 4;
}

@media (max-width: 580px) {
  .section-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-cell-1 {
    grid-area: 1 / 1 / 3 / 2;
  }

  .grid-cell-4 {
    grid-area: 3 / 1 / 4 / 3;
  }
}