html, body {
  height: 100%;
}
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: 'Segoe UI', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #fafbfc;
  color: #222;
}
header {
  background: #fff;
  border-bottom: 1px solid #eee;
  padding: 1rem 0;
}
nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 0;
  padding: 0;
}
nav a {
  text-decoration: none;
  color: #222;
  font-weight: 500;
  transition: color 0.2s;
}
nav a:hover {
  color: #0077cc;
}
main {
  flex: 1 0 auto;
  max-width: 700px;
  margin: 2rem auto;
  padding: 0 1rem;
}
.intro {
  text-align: center;
  margin-top: 3rem;
}
.blog-list ul, .portfolio-list ul {
  padding: 0;
  list-style: none;
}
.blog-list li, .portfolio-list li {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}
.blog-list .date {
  color: #888;
  font-size: 0.95rem;
  margin-left: 0.5rem;
}
.blog-post h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}
.blog-post p.date {
  color: #888;
  font-size: 0.95rem;
  margin-top: 0;
  margin-bottom: 2rem;
  margin-left: 0;
}
footer {
  background: #fff;
  border-top: 1px solid #eee;
  text-align: center;
  padding: 1.5rem 0 1rem 0;
  font-size: 0.95rem;
  flex-shrink: 0;
}
footer a {
  color: #0077cc;
  text-decoration: none;
  margin: 0 0.5rem;
}
footer a:hover {
  text-decoration: underline;
}
@media (max-width: 600px) {
  nav ul {
    flex-direction: column;
    gap: 1rem;
  }
  main {
    padding: 0 0.5rem;
  }
  .intro {
    margin-top: 1.5rem;
  }
}