body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background-color: #121212;
  color: #f5f5f5;
  line-height: 1.6;
}
header {
  text-align: center;
  padding: 2rem;
  background-color: #1f1f1f;
}
.profile-img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1rem;
  border: 3px solid #90caf9;
}
.subtitle {
  color: #b0bec5;
}
.socials a {
  margin: 0 0.5rem;
  color: #4fc3f7;
  text-decoration: none;
}
.section {
  padding: 2rem;
}
.section:nth-child(even) {
  background-color: #1e1e1e;
}
.section:nth-child(odd) {
  background-color: #252525;
}
h1, h2 {
  color: #90caf9;
}
ul {
  list-style: square inside;
}
footer {
  text-align: center;
  padding: 1rem;
  background-color: #1f1f1f;
  font-size: 0.9rem;
  color: #aaa;
}
a {
  color: #81d4fa;
}

/* Responsive layout */
@media (max-width: 768px) {
  .profile-img {
    width: 120px;
    height: 120px;
  }

  .section {
    padding: 1.5rem 1rem;
  }

  h1 {
    font-size: 1.8rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  ul {
    padding-left: 1rem;
  }
}

@media (max-width: 480px) {
  header, .section, footer {
    padding: 1rem;
  }

  .socials a {
    display: inline-block;
    margin: 0.25rem;
    font-size: 0.9rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.3rem;
  }
}