body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: #e0f7fa;
}

header {
  background: #fffde7;
  padding: 1em 0;
  text-align: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header img {
  max-width: 220px;
  height: auto;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.animated-bg {
  width: 100%;
  height: 100%;
  background-image: url('https://images.unsplash.com/photo-1508780709619-79562169bc64?auto=format&fit=crop&w=1350&q=80');
  background-size: cover;
  background-position: center;
  animation: pulse 20s infinite ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes pulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.1); }
}

.message-box {
  background-color: rgba(255, 255, 255, 0.9);
  padding: 2em;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.message-box h1 {
  color: #388e3c;
  font-size: 2.5em;
  margin-bottom: 0.5em;
}

.message-box p {
  color: #555;
  font-size: 1.2em;
}

footer {
  background-color: #00a0c6;
  color: white;
  text-align: center;
  padding: 1em 0;
  font-size: 0.9em;
}

footer a {
  color: #ffffff;
  text-decoration: underline;
}