/* Vars */
:root {
  --unit: 8px;
  --white: #fff;
  --primary: #d93914;
  --secondary: #66778c;
  --black: #191d24;
}

/* Default + reset */
* {
  font-family: 'Lato', sans-serif;
  font-size: calc(var(--unit) * 2);
  margin: 0;
  box-sizing: border-box;
}

body {
  background: var(--white);
}

/* Utilities */
.mb-2 {
  margin-bottom: calc(var(--unit) * 2);
}

.mb-4 {
  margin-bottom: calc(var(--unit) * 4);
}

.mr-1 {
  margin-right: var(--unit);
}

.mr-3 {
  margin-right: calc(var(--unit) * 3);
}

.no-decoration {
  text-decoration: none;
}

/* Style */
main {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: calc(100vh - calc(var(--unit) * 8));
  padding: 160px;
  width: 100%;
}

section {
  width: 100%;
  display: flex;
  flex-direction: column;
  padding-right: calc(var(--unit) * 8);
}

nav {
  height: calc(var(--unit) * 8);
  padding: calc(var(--unit) * 2.5) calc(var(--unit) * 2);
}

h1 {
  font-size: calc(var(--unit) * 4.5);
  color: var(--secondary);
}

h2 {
  font-size: calc(var(--unit) * 7);
  font-weight: normal;
  color: var(--black);
}

p {
  color: var(--secondary);
}

a {
  color: var(--secondary);
  text-underline-position: under;
}

button {
  padding: calc(var(--unit) * 2) calc(var(--unit) * 3);
  background: var(--primary);
  border-radius: calc(var(--unit) * 3);
  height: calc(var(--unit) * 6);
  border: none;
  color: var(--white);
  font-weight: bold;
  line-height: 100%;
  display: flex;
  align-items: center;
  cursor: pointer;
}

.illustration {
  max-height: calc(var(--unit) * 50);
  max-width: 50%;
}

.dark {
  display: none;
}

@media (max-width: 768px) {
  main {
    text-align: center;
    flex-direction: column-reverse;
    padding: calc(var(--unit) * 14.5);
  }

  section {
    align-items: center;
    padding-right: unset;
  }

  h1 {
    font-size: calc(var(--unit) * 4);
  }

  h2 {
    font-size: calc(var(--unit) * 5.5);
  }

  button {
    margin: auto;
  }

  .illustration {
    max-height: calc(var(--unit) * 30);
    max-width: unset;
    width: 100%;
  }
}

@media (max-width: 360px) {
  * {
    font-size: 14px;
  }

  main {
    text-align: center;
    flex-direction: column-reverse;
    padding: calc(var(--unit) * 4);
  }

  main section {
    flex: 1;
    position: relative;
  }

  h1 {
    font-size: calc(var(--unit) * 3);
  }

  h2 {
    font-size: calc(var(--unit) * 3.5);
  }

  button {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: max-content;
  }

  .illustration {
    max-height: calc(var(--unit) * 20);
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --white: #000;
    --secondary: #fff;
    --black: #fff;
    --primary: #ff7247;
  }

  button {
    color: var(--black);
  }

  .light {
    display: none;
  }

  .dark {
    display: block;
  }
}