* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #202124;
  background: #ffffff;
  line-height: 1.6;
}

header,
main,
footer {
  width: min(1100px, 90%);
  margin-inline: auto;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 1.5rem;
}

nav ul {
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: #1456a0;
}

section {
  padding-block: 4rem;
}

.hero {
  min-height: 70vh;
  display: grid;
  align-content: center;
  animation: fade-in 1.8s ease-out;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1 {
  max-width: 800px;
  margin-block: 0.5rem;
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 1.05;
}

article {
  max-width: 700px;
  padding: 1.5rem;
  border: 1px solid #d9d9d9;
  border-radius: 0.75rem;
}

article a {
  display: inline-block;
  margin-right: 1rem;
}

footer {
  padding-block: 2rem;
  border-top: 1px solid #d9d9d9;
}

@media (max-width: 650px) {
  nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }

  nav ul {
    flex-wrap: wrap;
  }
}