*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Roboto", sans-serif;
  background: url("./images/backcover.svg");
  background-position: top 0 right 0;
  background-repeat: no-repeat;
  background-size: 45%;
}

.main-div {
  width: 90%;
  margin-inline: auto;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 5rem;
}

.nav-items {
  display: flex;
  gap: 1.2rem;
}

nav [alt="logo"] {
  height: 40px;
}

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

  nav [alt="logo"] {
    height: 30px;
  }
}

.nav-item {
  font-size: 1rem;
  font-weight: 700;
  color: #3e4794;
  letter-spacing: 0.1rem;
}

.signin-btn {
  font-size: 1em;
  font-weight: 600;
  background: linear-gradient(90deg, #965cf2 0%, #ff8adc 100%);
  padding: 0.5em 1em;
  border: none;
  color: white;
  border-radius: 25px;
}

.intro-section {
  display: flex;
  flex-direction: column-reverse;
}

@media (min-width: 768px) {
  .intro-section {
    flex-direction: row;
  }
}

.left-section h1 {
  text-align: center;
  margin-top: 40px;
  color: #3f4894;
  font-size: 2em;
  font-weight: 900;
}

.left-section h4 {
  color: #3f4894;
  line-height: 1em;
  font-weight: 200;
  max-width: 400px;
  margin-top: 20px;
}

.learn-more-btn {
  display: block;
  font-weight: 600;
  font-size: 1em;
  background: linear-gradient(90deg, #965cf2 0%, #ff8adc 100%);
  padding: 0.5em 1em;
  border: none;
  color: white;
  margin: 20px auto;
  border-radius: 25px;
}

@media (min-width: 768px) {
  .left-section {
    width: 50%;
  }
  .left-section h1 {
    text-align: start;
    margin-top: 100px;
    font-size: 3.5em;
  }

  .left-section h4 {
    font-size: 1.2em;
  }
  .learn-more-btn {
    margin: 20px 0;
    font-size: 1.2em;
  }
}

.imgs-div {
  position: relative;
}

@media (max-width: 768px) {
  .imgs-div {
    width: 60%;
    margin-inline: auto;
  }

  .imgs-div .vector-dot {
    height: 5%;
  }

  .imgs-div .vector-img {
    height: 20%;
  }
}

.imgs-div [alt="intro-img"] {
  width: 90%;
  max-width: 600px;
}

.imgs-div .vector-dot {
  position: absolute;
  bottom: 25%;
  left: 15%;
}

.imgs-div .vector-img {
  position: absolute;
  bottom: 10%;
  left: 5%;
}