:root {
  --Strong-Cyan: hsl(171, 66%, 44%);
  --Light-Blue: hsl(233, 100%, 69%);
  --Dark-Grayish-Blue: hsl(210, 10%, 33%);
  --Grayish-Blue: hsl(201, 11%, 66%);

  --padding-container: 80px 0;
}

* {
  margin: 0;
  box-sizing: border-box;
}
body {
  font-family: "Bai Jamjuree", sans-serif;
}

/* HEADER STYLE */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
  padding: var(--padding-container);
}

.hero {
  --padding-container: 60px 0 0;
  background-image: url(images/bg-header-mobile.png);
  background-repeat: no-repeat;
  background-size: 100%;
  padding: var(--padding-container);
}

.hero_picture {
  padding: 0 0 70px;
}

.hero_img {
  display: block;
  margin: 0 auto;
}

.hero_title {
  color: var(--Dark-Grayish-Blue);
  margin-bottom: 0.5em;
  font-size: 2em;
}

.hero_paragraph {
  color: var(--Grayish-Blue);
  margin-bottom: 2rem;
  line-height: 1.5;
}

.buttons {
  display: flex;
  flex-direction: column;
  gap: 1.5em;
  text-align: center;
  margin: 40px 0;
}

.button_cta {
  color: #fff;
  background-color: var(--Strong-Cyan);
  font-weight: 600;
  padding: 1em 0;
  border-radius: 2rem;
  text-decoration: none;
  transition: box-shadow 0.3s ease-in-out;

  &:hover {
    box-shadow: 5px 5px 12px -5px var(--Strong-Cyan);
  }
}

.button_cta_blue {
  background-color: var(--Light-Blue);

  &:hover {
    box-shadow: 5px 5px 12px -5px var(--Light-Blue);
  }
}

/*  MAIN - SECTION TRACK */

.track_texts {
  text-align: center;
}

.title {
  color: var(--Dark-Grayish-Blue);
  font-size: 2rem;
}

.paragraph {
  line-height: 1.5;
  color: var(--Grayish-Blue);
  margin: 0 auto;
  margin-top: 1.5em;
  max-width: 768px;
}

.track_img {
  width: 100%;
  display: block;
  margin: 0 auto;
  max-width: 400px;
  margin-top: 3.5em;
}

.track_article {
  display: flex;
  flex-direction: column;
  gap: 3.5em;
  text-align: center;
  margin-top: 2.5em;
}

.track_offer {
  font-size: 1.5rem;
  color: var(--Dark-Grayish-Blue);
}

.track_copy {
  margin-top: 0.7em;
  line-height: 1.5;
  color: var(--Grayish-Blue);
}

/*   CLIPBOARD STYLE */

.clipboard {
  text-align: center;
}

.clipboard_picture {
  margin: 3em 0 6em;
}

.clipboard_img {
  width: 100%;
  max-width: 400px;
  display: block;
  margin: 0 auto;
}

.clipboard_offer {
  display: flex;
  flex-direction: column;
  gap: 3.5em;
  margin-top: 3.5em;
}

.clipboard_icon {
  width: 45px;
  display: block;
  margin: 0 auto;
  margin-bottom: 1.5em;
}

.clipboard_title {
  font-size: 1.5rem;
  color: var(--Dark-Grayish-Blue);
}

.clipboard_paragraph {
  color: var(--Grayish-Blue);
  line-height: 1.5;
  margin-top: 1em;
}

/*   BRANDS STYLE   */

.brand {
  display: flex;
  flex-direction: column;
  gap: 4.5em;
  align-items: center;
}

.action {
  text-align: center;
}

/*   FOOTER STYLE */

.footer {
  background-color: #f2f2f2;
  text-align: center;
}

.footer_img {
  width: 50px;
  display: block;
  margin: 0 auto;
}

.footer_links {
  display: flex;
  flex-direction: column;
  margin: 4em 0;
  gap: 1.5em;
  align-items: center;
}

.footer_link {
  text-decoration: none;
  color: var(--Dark-Grayish-Blue);

  &:hover {
    color: var(--Strong-Cyan);
  }
}

.footer_social {
  display: flex;
  justify-content: center;
  gap: 2.5em;
}

.footer_media {
  text-decoration: none;
}

.footer_icon {
  width: 1.3rem;
  vertical-align: middle;
  transition: all 0.3s ease-in-out;

  &:hover {
    filter: brightness(0) saturate(100%) invert(39%) sepia(83%) saturate(747%)
      hue-rotate(140deg) brightness(95%) contrast(90%);
  }
}

/*   MEDIA QUERYS 768px  */

@media (min-width: 768px) {
  /* MEDIA QUERYS HEADER */

  .hero {
    background-image: url(images/bg-header-desktop.png);
    padding: 100px 0 0;
  }

  .hero_title {
    font-size: 2.5rem;
  }

  .hero_paragraph {
    font-size: 1.2rem;
  }

  .buttons {
    margin: 3em 0;
    flex-direction: row;
    justify-content: center;
  }

  .button_cta {
    padding: 1em 3em;
  }

  /* MEDIA QUERYS TRACK */

  .title {
    font-size: 2.5rem;
  }

  .track {
    --padding-container: 80px 0 0;
    display: flex;
    width: 100%;
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .track_texts {
    width: 90%;
    margin: 0 auto;
    margin-bottom: 2.5em;
  }

  .track_picture {
    position: relative;
    width: 50%;
    height: 600px;
  }

  .track_img {
    position: absolute;
    top: 0;
    bottom: 0;
    margin: auto 0;
    width: 125%;
    max-width: 650px;
    right: 0;
  }

  .paragraph {
    font-size: 1.1rem;
  }

  .track_article {
    width: 42%;
    gap: 3em;
    margin: 0 auto;
    text-align: left;
    align-self: center;
  }

  .track_offer {
    font-size: 1.5rem;
    color: var(--Dark-Grayish-Blue);
  }

  .track_copy {
    margin-top: 0.7em;
    line-height: 1.5;
    color: var(--Grayish-Blue);
  }

  /* MEDIA QUERYS CLIPBOARD */

  .clipboard {
    --padding-container: 40px 0 80px;
  }

  .clipboard_picture {
    margin: 6em 0;
  }

  .clipboard_img {
    max-width: 700px;
  }

  .clipboard_offer {
    flex-direction: row;
    gap: 2em;
    justify-content: space-between;
    align-items: baseline;
  }

  .clipboard_item {
    flex: 1;
  }

  .brand {
    flex-direction: row;
    gap: 2.5em;
    justify-content: space-around;
  }

  .brands_items {
    min-width: 100px;
    max-width: 130px;
    flex: 1;
  }

  /* MEDIA QUERYS FOOTER */

  .footer_container {
    display: flex;
    gap: 3.5em;
    align-items: center;
  }

  .footer_img {
    width: 40px;
  }

  .footer_links {
    margin: 0;
    flex-direction: row;
    gap: 1em;
    align-items: center;
    flex-wrap: wrap;
  }

  .footer_link {
    width: 28%;
  }

  .footer_social {
    margin-left: auto;
  }

  .press_kit {
    order: 1;
  }

  .contact_us {
    order: 1;
  }
}