* {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: #1e1e1e;
  color: #fff;
}

.container {
  padding: 20px;
  max-width: 1000px;
  margin: auto;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

h1 {
  font-size: 1.8rem;
  margin: 10px 0;
}

input[type="text"] {
  padding: 10px;
  font-size: 16px;
  width: 100%;
  max-width: 300px;
  margin: 10px 0;
  border-radius: 6px;
  border: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.file-card {
  background-color: #2e2e2e;
  border-radius: 8px;
  padding: 15px;
  text-align: center;
  transition: background 0.2s ease;
  position: relative;
}

.file-card:hover {
  background-color: #3a3a3a;
}

.file-icon {
  font-size: 40px;
  margin-bottom: 10px;
}

.file-name {
  font-size: 0.9rem;
  word-break: break-word;
}

.file-actions {
  margin-top: 10px;
  display: flex;
  justify-content: center;
  gap: 10px;
}

button,
a button {
  padding: 5px 10px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
}

button:hover {
  background: #444;
}

iframe {
  width: 100%;
  height: 500px;
  margin-top: 30px;
  display: none;
  border: 1px solid #444;
}

.pagination {
  text-align: center;
  margin-top: 20px;
}

.pagination button {
  margin: 0 5px;
}