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

body {
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  color: white;
}

.bg-blur {
  position: fixed;
  width: 100%;
  height: 100%;
  backdrop-filter: blur(60px);
  z-index: 0;
}

.wrapper {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  z-index: 1;
}

.glass-card {
  background: rgba(255,255,255,0.08);
  border-radius: 22px;
  padding: 28px 22px;
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.18);
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  text-align: center;
  transition: 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-4px);
}

h1 {
  font-size: 24px;
  font-weight: 700;
}

.tagline {
  margin: 10px 0 20px;
  font-weight: 300;
  opacity: 0.85;
}

.download-btn {
  display: block;
  width: 100%;
  padding: 16px;
  border-radius: 50px;
  background: rgba(255,255,255,0.2);
  border: 1px solid rgba(255,255,255,0.3);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  color: white;
  transition: 0.3s ease;
}

.download-btn:active {
  transform: scale(0.96);
}

.version {
  margin-top: 14px;
  font-size: 13px;
  opacity: 0.8;
}

.install-note {
  margin-top: 15px;
  font-size: 12px;
  opacity: 0.75;
}

.message-card h2 {
  margin-bottom: 12px;
  font-size: 18px;
}

.message-card p {
  font-size: 14px;
  line-height: 1.6;
  opacity: 0.9;
}

.glass-signature {
  padding: 14px;
  text-align: center;
  font-size: 13px;
  border-radius: 18px;
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.glass-signature span {
  font-weight: 600;
  letter-spacing: 1px;
}

.features {
  list-style: none;
  margin-top: 15px;
  text-align: left;
  font-size: 14px;
  line-height: 1.7;
}

.small-note {
  font-size: 12px;
  margin-top: 12px;
  opacity: 0.7;
}