body {
  font-family: Arial, sans-serif;
  background: #f4f6f8;
  margin: 0;
  padding: 30px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
}

.card {
  background: white;
  padding: 20px;
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  margin-bottom: 20px;
}

.hidden {
  display: none;
}

input {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  box-sizing: border-box;
  border: 1px solid #ccc;
  border-radius: 10px;
}

button {
  padding: 12px 16px;
  border: none;
  border-radius: 10px;
  background: #1f6feb;
  color: white;
  cursor: pointer;
  margin-top: 8px;
}

button:hover {
  background: #1557b0;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.actions {
  margin: 15px 0;
}

.file-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 10px;
  margin-bottom: 8px;
}

.file-name {
  font-weight: bold;
}

.delete-btn {
  background: #d93f3f;
}

.delete-btn:hover {
  background: #b52d2d;
}