@import url("https://fonts.googleapis.com/css2?family=Inter:wght@100..900&display=swap");

:root {
  --color-black: #000;
  --color-white: #d9d9d9;
  --transition: all 0.3s ease-in-out;
  --border: 1px solid var(--color-white);
}

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

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
  font-family: inter, sans-serif;
}

body {
  width: 100vw;
  height: 100vh;
  color: var(--color-white);
  background-color: var(--color-black);
  padding: 30px;
  position: relative;
  overflow: hidden;
}

img.globe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  z-index: -1;
  animation: globeFadeIn 1.2s forwards, rotate 300s linear infinite;
  animation-delay: 1.2s;
}

@keyframes rotate {
  from {
    transform: rotate(0);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes globeFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 0.4;
  }
}

h1 {
  font-family: inter;
  text-shadow: 5px 5px 10px rgba(0, 0, 0, 0.5);
}

p,
a {
  font-size: 1.8rem;
}

a,
a:visited {
  color: var(--color-white);
  text-decoration: none;
  font-weight: bold;
  transition: var(--transition);
}

button.btn {
  border: none;
  background: none;
  cursor: pointer;
  border: var(--border);
  padding: 10px 25px;
  border-radius: 50px;
  transition: var(--transition);
}

button.btn:hover {
  transform: scale(1.1);
  color: var(--color-black);
  background-color: var(--color-white);
}

button.btn:hover a {
  color: var(--color-black);
}

section.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 70px;
}

section.hero span {
  opacity: 0;
  display: inline-block;
  animation: fadeIn 0.5s forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

h1#animated-heading {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
}

/* styles for extra small devices (phones, >=100px) */
@media only screen and (min-width: 100px) {
  h1 {
    font-size: 4rem;
  }

  nav img {
    width: 15%;
  }

  section.hero {
    text-align: center;
    margin-top: 100px;
  }

  h1#animated-heading {
    gap: 15px;
  }
}

/* styles for medium devices (tablets, >=768px) */
@media only screen and (min-width: 768px) {
  h1 {
    font-size: 7rem;
  }

  nav img {
    width: 15%;
  }

  section.hero {
    margin-top: 150px;
  }

  h1#animated-heading {
    gap: 20px;
  }
}

/* styles for large devices (desktops, >=992px) */
@media only screen and (min-width: 992px) {
  h1 {
    font-size: 8rem;
  }

  nav img {
    width: 7%;
  }

  section.hero {
    margin-top: 170px;
  }

  h1#animated-heading {
    gap: 25px;
  }
}