body {
  line-height:1.3;
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  color: #ffffff;
  overflow-x: hidden;
}
a,
a:visited{
  text-decoration:underline;
  color: #5df2d6;
  transition:color .175s ease-out;

  &:hover{
    color: #bdfaef;
  }
}
header {
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  min-height:100dvh;
  text-align: center;
  padding: .5rem 2rem;
  background: rgba(15, 32, 39, 0.9);
  box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
}
header h1 {
  font-size: 3rem;
  color: #5df2d6;
  margin-block:.5rem;
}
header p {
  max-width:25rem;
  font-size: 1.2rem;
  color: #8eecd1;
  margin-inline:auto;
}
main {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem;
}
.card {
  background: #102a37;
  border-radius: 8px;
  padding: 2rem;
  margin: 1rem;
  max-width: 400px;
  text-align: center;
  box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s;
}
.card:hover {
  transform: translateY(-5px);
}
.card h2 {
  color: #5df2d6;
}
.card p {
  color: #8eecd1;
}
footer {
  text-align: center;
  padding: 1rem;
  background: rgba(15, 32, 39, 0.8);
  color: #8eecd1;
  font-size: 0.9rem;
}
.button {
  padding: 0.8rem 1.5rem;
  background: #5df2d6;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  color: #102a37;
  cursor: pointer;
  margin-top: 1rem;
  transition: background 0.3s;
}
.button:hover {
  background: #8eecd1;
}
.icon {
  font-size: 4rem;
  color: #5df2d6;
  margin-bottom: 1rem;
}