body {
  margin: 0;
  font-family: 'Arial', sans-serif;
  background-color: #002b5c;
  color: #fff;
  text-align: center;
  overflow: hidden;
}

.container {
  position: relative;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

header h1 {
  font-size: 3rem;
  color: #ffeb3b;
  text-shadow: 2px 2px 5px #d84315;
}

main p {
  font-size: 1.5rem;
  margin: 20px 0;
}

.christmas-gif {
  max-width: 80%;
  height: auto;
  margin-top: 20px;
  border: 5px solid #ffeb3b;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

footer p {
  font-size: 1rem;
  margin-top: 30px;
  color: #81d4fa;
}

.snowflakes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.snowflake {
  position: absolute;
  top: -10%;
  left: 50%;
  font-size: 1.5rem;
  color: #fff;
  animation: fall linear infinite, drift linear infinite;
}

.snowflake:nth-child(2) { font-size: 2rem; animation-duration: 6s; left: 25%; }
.snowflake:nth-child(3) { font-size: 1.2rem; animation-duration: 8s; left: 75%; }
.snowflake:nth-child(4) { font-size: 1.8rem; animation-duration: 5s; left: 10%; }
.snowflake:nth-child(5) { font-size: 1.3rem; animation-duration: 7s; left: 90%; }

@keyframes fall {
  0% { top: -10%; }
  100% { top: 110%; }
}

@keyframes drift {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(10px); }
}