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

body {
  min-height: 100vh;
  font-family: Arial, sans-serif;
  background-color: #202020;
  color: white;
  font-size: 22px;
  line-height: 1.6;
}

header {
  position: fixed;
  top: 0;
  width: 100%;
  height: 75px;
  background-color: #101010;
  padding: 1rem;
  display: flex;
  align-items: center;
}

nav {
  margin-left: auto;
}

main {
  margin-top: 120px;
  padding: 1rem;
}

section {
  margin-bottom: 2rem;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

nav a {
  font-size: 1.2rem;
  color: lightskyblue;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: 0.3s;
}

nav a:hover {
  background-color: rgba(0, 170, 255, 0.2);
  color: white;
}

#platform {
  width: 220px;
  height: 360px;
  background-color: rgba(0, 170, 255, 0.831);
  border-radius: 18px;
  box-shadow: 1px 2px 10px lightskyblue,
    44px 44px 24px rgba(0, 170, 255, 0.831);
  transition: 0.5s ease-in-out box-shadow;
}

#platform:hover {
  box-shadow: 1px 2px 10px lightskyblue,
    70px 70px 24px rgba(0, 170, 255, 0.831);
}