styles.css

html {
  font-size: 16px;
}
body {
  background: linear-gradient(0deg, #19221a, #19292e);
  overflow-x: hidden;
  margin: 0;
}
body header {
  padding: 1rem;
}
.f {
  display: flex;
}
.fc {
  flex-direction: column;
}
.ac {
  align-items: center;
}
.jcc {
  justify-content: center;
}
.jsc {
  justify-self: center;
}
.f1 {
  flex: 1;
}
h1,
.h1 {
  font-size: 3rem;
}
p {
  line-height: 1.7;
  font-size: 1.4rem;
}
* {
  --font1: "Play";
  font-family: 'Share Tech', monospace;
  text-rendering: optimizeLegibility;
  text-transform: none;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  font-smoothing: antialiased;
  box-sizing: border-box;
}
input,
button {
  font-size: 1.2rem;
}
input {
  background: #2a4632;
  padding: 0 0 0 2rem;
  border: 0;
}
input::placeholder {
  color: rgba(255,255,255,0.749);
}
button {
  border: 0;
  background: #4d879d;
  padding: 0 2rem;
  cursor: pointer;
}
form {
  border-radius: 8px;
  overflow: hidden;
  margin: 0 auto;
  width: 350px;
}
form input {
  background: #566b5c;
  flex: 1;
}
form > * {
  height: 62px;
  color: #fff;
}
.container {
  max-width: 1280px;
  padding: 0 2rem;
  margin: 0 auto;
}
ul {
  margin: 0;
  padding: 0;
  flex-direction: column;
}
@media (min-width: 960px) {
  ul {
    flex-direction: row;
  }
}
ul li {
  list-style: none;
}
h1,
h2,
h3,
h4,
h5,
h6,
.h1,
.h2,
.h3,
.h4,
.h5,
.h6 {
  font-family: var(--font1);
}
h1 {
  margin: 0;
  font-size: 3.75rem;
}
h2 {
  font-size: 1.4rem;
}
svg,
img {
  width: 100%;
  height: auto;
  overflow: visible;
}
svg#bg,
img#bg {
  z-index: -4;
  pointer-events: none;
  position: absolute;
  align-self: center;
  width: 100%;
  transform: scale(8.5);
  opacity: 0.1;
  height: 200px;
}
header {
  position: absolute;
}
header svg {
  position: absolute;
  width: 160px;
  height: auto;
}
section {
  position: relative;
}
section#hero {
  padding: 4rem 2rem 10rem;
}
@media (min-width: 968px) {
  section#hero {
    padding: 4rem 2rem 3rem;
  }
}
section#hero:before {
  z-index: -5;
  position: absolute;
  background: radial-gradient(circle at 50% 100%, #3b5440 30%, #082020);
  content: "";
  width: 100%;
  height: 100%;
  top: 0;
}
section#hero hgroup {
  text-align: center;
  max-width: 720px;
  margin: 3rem 0 1rem;
  color: #fff;
}
section#hero #graphic {
  box-shadow: 0px 20px 50px 0px rgba(0,0,0,0.29);
  max-width: 1280px;
  height: auto;
  width: 90vw;
  z-index: -3;
  margin: 0 0 -4rem;
  z-index: -3;
  border-radius: 16px;
  margin: 0 0 -4rem;
  overflow: hidden;
  border: 2px solid #385557;
}
@media (min-width: 968px) {
  section#hero #graphic {
    box-shadow: 0px 20px 50px 0px rgba(0,0,0,0.79);
  }
}
section#hero small {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.541);
  margin: 0 0 1rem;
}
section#hero form {
  margin: 0 0 3rem;
}
section#desc:before {
  position: absolute;
  pointer-events: none;
  background: linear-gradient(0deg, #42686e, #314141);
  z-index: -3;
  clip-path: ellipse(4000px 100% at 50% 100%);
  content: '';
  top: -4rem;
  bottom: 0;
  right: 0;
  left: 0;
}
section#desc .container {
  padding: 4rem 2rem 0;
}
@media (min-width: desktop) {
  section#desc .container {
    padding: 0 2rem;
  }
}
section#desc .container hgroup {
  text-align: center;
  max-width: 660px;
  margin: 0 auto;
  color: #fff;
}
section#desc .container hgroup h2 {
  margin: 0;
}
section#desc .container hgroup p {
  margin: 0.5rem 0 1.5rem;
}
section#desc .container ul li {
  padding: 1rem;
}
section#desc .container ul li .inner {
  padding: 1rem 2rem;
  border-radius: 6px;
  background: #516a6e;
  border-top: 3px solid #70b47d;
  box-shadow: 0px 10px 10px -6px rgba(0,0,0,0.18);
}
section#desc .container ul li h3 {
  color: #fff;
  margin: 0.75rem 0 1rem;
}
section#desc .container ul li p {
  font-size: 1rem;
  color: #b9c9cd;
}
section#desc .container #desc-svg {
  padding: 4rem 0 0 1rem;
  position: relative;
  z-index: -2;
  height: 520px;
}
@media (min-width: 960px) {
  section#desc .container #desc-svg {
    height: 680px;
  }
}
section#desc .container #desc-svg #secondary {
  position: absolute;
  overflow: hidden;
  border-radius: 8px;
  border: 2px solid #43575b;
  box-shadow: 0px 30px 30px #121b1c;
}
@media (min-width: 960px) {
  section#desc .container #desc-svg #secondary {
    width: 1300px;
  }
}
@media (min-width: 1520px) {
  section#desc .container #desc-svg #secondary {
    width: 1420px;
  }
}
section#extended {
  --bg: #75997c;
  position: relative;
}
@media (min-width: 960px) {
  section#extended {
    height: 440px;
  }
}
section#extended hgroup {
  text-align: center;
}
section#extended hgroup h2 {
  margin: 0 auto;
  max-width: 510px;
}
section#extended:before {
  position: absolute;
  pointer-events: none;
  background: linear-gradient(0deg, #74997b, #88bc9b);
  z-index: -3;
  clip-path: ellipse(3000px 100% at 50% 100%);
  content: '';
  top: -7rem;
  bottom: 4rem;
  right: 0;
  left: 0;
  z-index: -1;
}
section#extended ul {
  margin: 3rem 0 0;
}
section#extended ul li {
  margin: 1rem;
  padding: 1rem 2rem;
  background: #88ab96;
  border-radius: 12px;
  border-top: 3px solid #a1beca;
}
section#extended ul li p {
  font-size: 1rem;
}
section#email {
  margin: 4rem auto 6rem;
}
section#email hgroup {
  color: #fff;
}
footer {
  background: #121c15;
  padding: 1rem;
}
footer svg {
  width: 150px;
}
footer #footer-btm {
  margin: 0.5rem 0 0 0;
  color: rgba(255,255,255,0.502);
}