body {
  font-family: sans-serif;
  background-color: #e3f2fd; 
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  background-color: #fff;
  border-radius: 20px; 
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15); 
  padding: 40px; 
  width: 85%; 
  max-width: 700px; 
  text-align: center;
}

header {
  margin-bottom: 30px; 
}

h1 {
  color: #1e88e5; 
  margin-bottom: 10px;
}

p {
  color: #546e7a; 
}

main {
  margin-bottom: 30px; 
}

#uploadForm {
  display: flex;
  flex-direction: column;
  align-items: center;
}

#fileInput {
  margin-bottom: 20px; 
  padding: 12px; 
  border: 2px solid #bbdefb; 
  border-radius: 10px; 
  width: 80%; 
  box-sizing: border-box; 
  transition: border-color 0.3s ease;
  display: none;
}

#fileInput:focus {
  border-color: #64b5f6; 
  outline: none;
}

.upload-button {
  background-color: #1e88e5; 
  color: white;
  padding: 14px 24px; 
  border: none;
  border-radius: 10px; 
  cursor: pointer;
  font-size: 18px; 
  transition: background-color 0.3s ease;
}

.upload-button:hover {
  background-color: #1565c0; 
}

.progress-container {
  width: 100%;
  background-color: #bbdefb; 
  border-radius: 10px; 
  margin-top: 20px; 
  display: none; 
  overflow: hidden;
}

.progress-bar {
  height: 24px; 
  background-color: #1e88e5; 
  width: 0%;
  border-radius: 10px; 
  transition: width 0.3s ease;
}

.progress-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 14px; 
}

#status-message {
  margin-top: 20px; 
  font-weight: bold;
  color: #1e88e5; 
}

footer {
  text-align: center;
  color: #90a4ae; 
  font-size: 14px;
  margin-top: 30px; 
}

#download-link-container {
  display: block;
  margin-top: 30px;
}

#download-link {
  background-color: #1e88e5;
  color: white;
  padding: 14px 24px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 18px;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

#download-link:hover {
  background-color: #1565c0;
}

.logo {
  max-width: 150px; 
  margin-bottom: 20px;
}

.info-box {
  background-color: #bbdefb;
  border-radius: 10px;
  padding: 20px;
  margin-top: 20px;
  text-align: left;
}

.info-box h3 {
  color: #1e88e5;
  margin-bottom: 10px;
}

.info-box p {
  color: #546e7a;
  margin: 5px 0;
}