body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 20px;
}

header {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.logo {
  max-height: 60px;
  margin-right: 15px;
}

h1 {
  color: #5a5a5a;
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 20px;
}

header a {
  text-decoration: none;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  background: #fff;
  padding: 20px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.section {
  margin-bottom: 20px;
}

input[type="file"],
input[type="text"],
input[type="url"] {
  width: calc(100% - 22px);
  padding: 10px;
  margin: 10px 0;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  padding: 10px 20px;
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: #218838;
}

button:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}

.progress {
  width: 100%;
  background-color: #f3f3f3;
  border-radius: 4px;
  margin: 10px 0;
}

.progress-bar {
  width: 0;
  height: 20px;
  background-color: #28a745;
  border-radius: 4px;
  text-align: center;
  color: white;
  line-height: 20px;
}

.result {
  margin: 10px 0;
  padding: 10px;
  background-color: #e9ecef;
  border-radius: 4px;
}