body {
  font-family: 'Segoe UI', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f8f9fa;
  color: #222;
}
header {
  background: #2d3748;
  color: #fff;
  padding: 2rem 1rem;
  text-align: center;
}
header h1 {
  margin: 0 0 0.3em 0;
  font-size: 2.5rem;
}
header p {
  margin: 0;
  font-size: 1.2rem;
  color: #e2e8f0;
}
main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 1rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}
section {
  margin-bottom: 2rem;
}
h2 {
  color: #2b6cb0;
  margin-bottom: 0.5em;
}
p {
  text-align: justify;
}
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(240px,1fr));
  gap: 1.5rem;
}
.project-card {
  background: #f1f5f9;
  border-radius: 8px;
  padding: 1rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
  transition: box-shadow 0.2s;
}
.project-card:hover {
  box-shadow: 0 4px 16px rgba(44,62,80,0.13);
}
.project-card h3 {
  margin: 0 0 0.3em 0;
  font-size: 1.15em;
}
.project-card p {
  margin: 0 0 0.5em 0;
  font-size: 0.98em;
  color: #444;
}
.project-card a {
  text-decoration: none;
  color: #3182ce;
  font-weight: bold;
}
footer {
  text-align: center;
  padding: 1.5em 0;
  background: #2d3748;
  color: #fff;
  border-radius: 0 0 8px 8px;
  margin-top: 2rem;
}
@media (max-width: 600px) {
  header h1 { font-size: 1.6rem; }
  main { padding: 0.5rem; }
}