body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  background: #f9f9f9;
  color: #333;
}
header {
  background: #8B0000;
  color: white;
  padding: 2rem;
  text-align: center;
}
nav {
  background: #222;
  display: flex;
  justify-content: center;
  padding: 0.5rem 0;
}
nav a {
  color: white;
  margin: 0 1rem;
  text-decoration: none;
}
.section {
  padding: 2rem;
  max-width: 1200px;
  margin: auto;
}
.tiles {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.tile {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  flex: 1 1 calc(33.333% - 1rem);
  min-width: 280px;
}
.tile img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.tile-info {
  padding: 1rem;
}
.projects img {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 1rem;
}
footer {
  text-align: center;
  background: #ddd;
  padding: 1rem;
  font-size: 0.9rem;
}