body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #111;
  color: #d0d0d0;
  line-height: 1.6;
}

header {
  background-color: #1a1a1a;
  padding: 1.5rem;
  border-bottom: 1px solid #333;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-title {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-title img {
  width: clamp(40px, 8vw, 60px);
  height: auto;
}

header h1 {
  margin: 0;
  font-size: clamp(1.5rem, 2vw + 1rem, 2.5rem);
  color: #88ffaa;
}

nav {
  margin-left: auto;
  margin-top: 0;
  text-align: right;
}

nav a {
  margin: 0 1rem;
  color: #a0dca0;
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.developer {
  text-align: center;
}

.developer .profile {
  width: 200px;
  height: auto;
  display: block;
  margin: 0 auto 1rem;
}

footer {
  background-color: #1a1a1a;
  color: #666;
  text-align: center;
  padding: 1rem;
  border-top: 1px solid #333;
}

@media (max-width: 600px) {
  nav a {
    display: block;
    margin: 0.5rem 0;
  }
}