* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #0f172a;
}

.download-box {
  width: 360px;
  background: #020617;
  padding: 30px;
  border-radius: 14px;
  box-shadow: 0 0 30px rgba(0,0,0,0.6);
  color: #fff;
  text-align: center;
}

/* Download Button */
.download-btn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  font-weight: bold;
  color: #020617;
  background: #22c55e;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: 0.3s ease;
}

.download-btn:hover {
  background: #16a34a;
}

/* Progress Section (hidden initially) */
.progress-section {
  display: none;
  margin-top: 10px;
}

.progress-section h2 {
  margin-bottom: 20px;
  font-size: 18px;
}

/* Progress Bar */
.progress-container {
  width: 100%;
  height: 16px;
  background: #1e293b;
  border-radius: 10px;
  overflow: hidden;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #22c55e, #16a34a);
  border-radius: 10px;
  transition: width 0.3s ease;
}

.progress-info {
  margin-top: 15px;
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: #cbd5f5;
}