/* Body */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 10px;
  box-sizing: border-box;
}

/* Container */
.container {
  width: 100%;
  display: flex;
  justify-content: center;
}

/* Portal box */
.portal {
  text-align: center;
  max-width: 400px;
  width: 100%;
  padding: 20px;
}

/* Heading & description */
.portal h1 {
  color: #ff1a1a;
  font-size: 2rem;
  margin-bottom: 10px;
}

.portal p {
  color: #555;
  font-size: 1rem;
  margin-bottom: 15px;
}

/* QR code with red glow */
.qr-container {
  width: 70%;
  max-width: 220px;
  margin: 0 auto 20px;
  border-radius: 15px;
  overflow: hidden;
  border: 4px solid #ff1a1a;
  box-shadow: 0 0 15px #ff1a1a, 0 0 30px #ff4d4d;
  animation: glow 2s infinite;
}

.qr-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Buttons */
.fb-btn {
  background: #1877f2;
  color: #fff;
  border: none;
  padding: 12px 20px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: bold;
  width: 80%;
  max-width: 250px;
  margin: 10px 0;
}

.fb-btn:hover {
  transform: scale(1.05);
  background: #145dbf;
  box-shadow: 0 0 15px #1877f2;
}

/* Note */
.note {
  margin-top: 20px;
  color: #ff1a1a;
  font-weight: bold;
  font-size: 14px;
}

/* Glow animation */
@keyframes glow {
  0% { box-shadow: 0 0 20px #ff1a1a, 0 0 40px #ff4d4d; }
  50% { box-shadow: 0 0 35px #ff1a1a, 0 0 70px #ff4d4d; }
  100% { box-shadow: 0 0 20px #ff1a1a, 0 0 40px #ff4d4d; }
}

/* Responsive adjustments */
@media (max-width: 480px) {
  .portal h1 { font-size: 1.6rem; }
  .portal p { font-size: 0.95rem; }
  .fb-btn { font-size: 14px; padding: 12px; }
  .qr-container { width: 80%; max-width: 200px; }
}