body {
  margin: 0;
  height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: white;
  background: url("/background.jpg") center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  padding: 45px 65px;
  border-radius: 18px;
  text-align: center;
  max-width: 560px;
  width: 90%;
  animation: fadeIn 0.6s ease;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.badge {
  background: rgba(255, 255, 255, 0.18);
  padding: 6px 14px;
  border-radius: 999px;
  display: inline-block;
  font-size: 14px;
  margin-bottom: 18px;
  font-weight: bold;
  letter-spacing: 0.5px;
}

h1 {
  margin: 0 0 16px;
  font-size: 34px;
  line-height: 1.2;
}

.lead {
  font-size: 18px;
  line-height: 1.7;
  margin: 0 auto 28px;
  max-width: 460px;
  opacity: 0.97;
}

.button {
  display: inline-block;
  background: #22c55e;
  color: white;
  text-decoration: none;
  font-weight: bold;
  font-size: 18px;
  padding: 16px 28px;
  border-radius: 12px;
  transition: transform 0.15s ease, background 0.15s ease;
  box-shadow: 0 8px 20px rgba(34, 197, 94, 0.28);
}

.button:hover {
  background: #16a34a;
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.note {
  margin-top: 22px;
  font-size: 15px;
  opacity: 0.9;
  line-height: 1.6;
}

.tick {
  font-size: 60px;
  color: #4ade80;
  margin-bottom: 10px;
  animation: pop 0.6s ease;
}

@keyframes pop {
  0% { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.details {
  margin-top: 18px;
  font-size: 18px;
  line-height: 1.8;
}

.footer {
  margin-top: 28px;
  font-size: 16px;
  opacity: 0.95;
}

@media (max-width: 640px) {
  .card {
    padding: 32px 24px;
  }

  h1 {
    font-size: 28px;
  }

  .lead {
    font-size: 16px;
  }

  .button {
    width: 100%;
    box-sizing: border-box;
  }
}