* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background: linear-gradient(to right, #f8f9fa, #e0f7fa);
  padding: 20px;
}

.container {
  max-width: 600px;
  margin: auto;
  background: #ffffff;
  padding: 25px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}

.file-name {
  font-size: 1.2rem;
  margin-bottom: 20px;
}

.loader-wrapper {
  margin: 20px 0;
}

.progress-bar {
  width: 100%;
  background: #e0e0e0;
  border-radius: 6px;
  overflow: hidden;
  height: 20px;
}

.progress {
  height: 100%;
  width: 0%;
  background: #28a745;
  animation: loadProgress 2s forwards;
}

@keyframes loadProgress {
  from { width: 0%; }
  to { width: 60%; }
}

.download-btn {
  display: inline-block;
  background-color: #999;
  color: #fff;
  padding: 12px 24px;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  text-decoration: none;
  margin-top: 10px;
  cursor: not-allowed;
  opacity: 0.7;
}

@media (max-width: 600px) {
  .container {
    padding: 15px;
  }

  h1 {
    font-size: 1.5rem;
  }

  .download-btn {
    width: 100%;
    padding: 14px;
  }
}