* { box-sizing: border-box; }
body {
  font-family: 'Inter', sans-serif;
  background: #0d1117;
  color: #e6edf3;
  margin: 0;
}
.explorer-header {
  padding: 1rem;
  background: #161b22;
  border-bottom: 1px solid #30363d;
}
.file-list {
  padding: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.file-card {
  background: #161b22;
  padding: 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
}
.file-card:hover {
  background: #1f2937;
}
.file-card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  word-break: break-word;
}
.file-meta {
  font-size: 0.8rem;
  color: #8b949e;
}