/* Effet neige qui tombe */
@keyframes snowfall {
  0% { 
    transform: translateY(-10px) translateX(0) rotate(0deg); 
    opacity: 0;
  }
  10% { 
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% { 
    transform: translateY(100vh) translateX(30px) rotate(360deg); 
    opacity: 0;
  }
}

.snowflake {
  position: absolute;
  width: 10px;
  height: 10px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.9) 0%, rgba(250, 247, 240, 0.6) 50%, transparent 100%);
  border-radius: 50%;
  animation: snowfall linear infinite;
  pointer-events: none;
  user-select: none;
}

/* Variations de flocons - tailles et vitesses différentes */
.snowflake:nth-child(1) { 
  left: 5%; 
  animation-duration: 8s; 
  animation-delay: 0s;
  width: 6px;
  height: 6px;
}

.snowflake:nth-child(2) { 
  left: 15%; 
  animation-duration: 10s; 
  animation-delay: 1s;
  width: 10px;
  height: 10px;
}

.snowflake:nth-child(3) { 
  left: 25%; 
  animation-duration: 12s; 
  animation-delay: 2s;
  width: 7px;
  height: 7px;
}

.snowflake:nth-child(4) { 
  left: 35%; 
  animation-duration: 9s; 
  animation-delay: 0.5s;
  width: 8px;
  height: 8px;
}

.snowflake:nth-child(5) { 
  left: 45%; 
  animation-duration: 11s; 
  animation-delay: 3s;
  width: 9px;
  height: 9px;
}

.snowflake:nth-child(6) { 
  left: 55%; 
  animation-duration: 10s; 
  animation-delay: 1.5s;
  width: 7px;
  height: 7px;
}

.snowflake:nth-child(7) { 
  left: 65%; 
  animation-duration: 13s; 
  animation-delay: 2.5s;
  width: 11px;
  height: 11px;
}

.snowflake:nth-child(8) { 
  left: 75%; 
  animation-duration: 9s; 
  animation-delay: 0.8s;
  width: 8px;
  height: 8px;
}

.snowflake:nth-child(9) { 
  left: 85%; 
  animation-duration: 11s; 
  animation-delay: 3.5s;
  width: 8px;
  height: 8px;
}

.snowflake:nth-child(10) { 
  left: 95%; 
  animation-duration: 12s; 
  animation-delay: 1.2s;
  width: 7px;
  height: 7px;
}

.snowflake:nth-child(11) { 
  left: 10%; 
  animation-duration: 14s; 
  animation-delay: 4s;
  width: 9px;
  height: 9px;
}

.snowflake:nth-child(12) { 
  left: 70%; 
  animation-duration: 10s; 
  animation-delay: 2.8s;
  width: 6px;
  height: 6px;
}

.snowflake:nth-child(13) { 
  left: 40%; 
  animation-duration: 11.5s; 
  animation-delay: 3.2s;
  width: 8px;
  height: 8px;
}

.snowflake:nth-child(14) { 
  left: 60%; 
  animation-duration: 9.5s; 
  animation-delay: 1.8s;
  width: 7px;
  height: 7px;
}

.snowflake:nth-child(15) { 
  left: 80%; 
  animation-duration: 13.5s; 
  animation-delay: 4.5s;
  width: 10px;
  height: 10px;
}

/* Responsive neige */
@media (max-width: 768px) {
  .snowflake:nth-child(n+11) {
    display: none;
  }
}