body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f5f7fa;
  color: #222;
}

header {
  background: linear-gradient(90deg, #4f8cff 0%, #6ee7b7 100%);
  color: #fff;
  padding: 2rem 0;
  text-align: center;
  animation: fadeInDown 1s;
}

h1 {
  margin: 0;
  font-size: 2.5rem;
  letter-spacing: 2px;
}

main {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 60vh;
  padding: 2rem 0;
}

section {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  padding: 2rem;
  max-width: 650px;
  width: 100%;
  animation: fadeInUp 1.2s;
}

section img {
  display: block;
  margin: 0 auto 1.5rem auto;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(79,140,255,0.15);
  animation: popIn 1.5s;
}

footer {
  text-align: center;
  padding: 1rem 0;
  background: #e5e7eb;
  color: #555;
  font-size: 1rem;
  animation: fadeIn 2s;
}

/* Animations */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-40px);}
  to { opacity: 1; transform: translateY(0);}
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px);}
  to { opacity: 1; transform: translateY(0);}
}

@keyframes fadeIn {
  from { opacity: 0;}
  to { opacity: 1;}
}

@keyframes popIn {
  0% { opacity: 0; transform: scale(0.7);}
  70% { opacity: 1; transform: scale(1.05);}
  100% { opacity: 0;}
}