body {
  background: #0a0a0a;
  color: #fff;
  font-family: system-ui, -apple-system, sans-serif;
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container, .download-card {
  background: #111;
  padding: 40px;
  border-radius: 16px;
  text-align: center;
  max-width: 520px;
  border: 1px solid #333;
  box-shadow: 0 0 30px rgba(168, 85, 247, 0.2);
}

h1 { color: #a855f7; margin-bottom: 8px; }

.upload-box {
  border: 3px dashed #a855f7;
  padding: 50px 20px;
  border-radius: 12px;
  cursor: pointer;
  margin: 20px 0;
}

.upload-box:hover {
  background: #1a1a1a;
}

.download-btn {
  background: #a855f7;
  color: white;
  padding: 16px 40px;
  font-size: 1.3em;
  border-radius: 10px;
  text-decoration: none;
  display: inline-block;
  margin: 20px 0;
  font-weight: bold;
}

.download-btn:hover {
  background: #c084fc;
}