body {
  font-family: sans-serif;
  margin: 0 auto;
  max-width: 800px;
  padding: 1rem;
}
header, footer {
  text-align: center;
  margin-bottom: 2rem;
}

footer {
  margin-top: 3rem;

}
ul {
  list-style: none;
  padding: 0;
}
li {
  margin: 0.3rem 0;
}
a {
  color: #007acc;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.emoji-folder { color: #f9a825; font-size: 1.2em; margin-right: 0.3em; }
.emoji-image  { color: #1976d2; font-size: 1.2em; margin-right: 0.3em; }
.emoji-video  { color: #d32f2f; font-size: 1.2em; margin-right: 0.3em; }
.emoji-csv    { color: #388e3c; font-size: 1.2em; margin-right: 0.3em; }
.emoji-file   { color: #616161; font-size: 1.2em; margin-right: 0.3em; }

.file-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.3em;
}

@media (min-width: 600px) {
  .file-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .file-list {
    grid-template-columns: 1fr 1fr 1fr;
  }
}