* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(135deg, #0d47a1, #42a5f5); /* Wintery, rich blue gradient */
  overflow: hidden;
  font-family: Arial, sans-serif;
}

.container {
  text-align: center;
  padding: 3rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 15px;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  position: relative;
  z-index: 10; 
  animation: fadeIn 1s ease-in-out;
}

.container::before {
  content: "";
  position: absolute;
  top: -8px; left: -8px;
  right: -8px; bottom: -8px;
  border-radius: 20px;
  padding: 5px;
  box-shadow: 
    0 0 8px 2px red, 
    0 0 8px 2px green, 
    0 0 8px 2px blue, 
    0 0 8px 2px white;
  animation: christmasLights 2s linear infinite;
  pointer-events: none; 
}

@keyframes christmasLights {
  0% {
    box-shadow: 
      0 0 8px 2px red, 
      0 0 8px 2px green, 
      0 0 8px 2px blue, 
      0 0 8px 2px white;
  }
  25% {
    box-shadow: 
      0 0 8px 2px green, 
      0 0 8px 2px blue, 
      0 0 8px 2px white, 
      0 0 8px 2px red;
  }
  50% {
    box-shadow: 
      0 0 8px 2px blue, 
      0 0 8px 2px white, 
      0 0 8px 2px red, 
      0 0 8px 2px green;
  }
  75% {
    box-shadow: 
      0 0 8px 2px white, 
      0 0 8px 2px red, 
      0 0 8px 2px green, 
      0 0 8px 2px blue;
  }
  100% {
    box-shadow: 
      0 0 8px 2px red, 
      0 0 8px 2px green, 
      0 0 8px 2px blue, 
      0 0 8px 2px white;
  }
}

.title {
  font-size: 3em;
  font-weight: bold;
  color: #fff;
  margin-bottom: 2rem;
  animation: fadeInTitle 1.2s ease forwards;
}

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

.button-container {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

.button {
  padding: 0.8rem 1.5rem;
  font-size: 1.2em;
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.button-red {
  background-color: #e53935;
}
.button-red:hover {
  background-color: #b71c1c;
}

.button-green {
  background-color: #43a047;
}
.button-green:hover {
  background-color: #2e7d32;
}

.particles {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  overflow: hidden;
  z-index: 1;
  pointer-events: none;
}

.snowflake {
  position: absolute;
  top: -50px;
  color: rgba(255, 255, 255, 0.9);
  animation: fall linear infinite;
  opacity: 0.9;
}

@keyframes fall {
  0% {
    transform: translateY(0) rotate(0deg);
  }
  100% {
    transform: translateY(100vh) rotate(360deg);
  }
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.footer {
  position: fixed;
  bottom: 10px;
  width: 100%;
  text-align: center;
  font-size: 0.8em;
  color: #ffffffaa;
  z-index: 2;
}