/* Night Sky with Moon, Stars, Rain and Snow Effects */
:root {
  --rain-duration: 0.2s;
  --rain-delay: 0.1s;
  --snow-duration: 3s;
  --snow-delay: 0.5s;
}

body {
  background-color: #0a1a2f; /* Dark blue night sky */
  overflow-x: hidden;
  position: relative;
  margin: 0;
  padding: 0;
  color: #fff;
}

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

/* Moon */
.moon {
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background-color: #f9f9f9;
  box-shadow: 0 0 40px 20px rgba(249, 249, 249, 0.5);
  top: 50px;
  right: 100px;
  animation: moon-movement 120s infinite ease-in-out;
}

@keyframes moon-movement {
  0% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(-50px, 30px) scale(0.95);
  }
  50% {
    transform: translate(-100px, 10px) scale(0.9);
  }
  75% {
    transform: translate(-50px, -30px) scale(0.95);
  }
  100% {
    transform: translate(0, 0) scale(1);
  }
}

.moon::before {
  content: '';
  position: absolute;
  top: 15px;
  left: 15px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: rgba(230, 230, 230, 0.8);
}

.moon::after {
  content: '';
  position: absolute;
  bottom: 30px;
  right: 25px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background-color: rgba(230, 230, 230, 0.8);
}

/* Stars */
.stars {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.star {
  position: absolute;
  background-color: white;
  border-radius: 50%;
  animation: twinkle 3s infinite ease-in-out;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 1; }
}

/* Rain */
.rain-container, .snow-container {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
}

.rain {
  position: absolute;
  width: 2px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.7));
  animation: rain-fall linear infinite;
}

@keyframes rain-fall {
  0% {
    transform: translateY(-100px) translateX(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
    transform: translateY(-70px) translateX(-5px);
  }
  50% {
    transform: translateY(calc(50vh - 50px)) translateX(-15px);
  }
  95% {
    opacity: 1;
  }
  100% {
    transform: translateY(calc(100vh + 100px)) translateX(-20px);
    opacity: 0;
  }
}

/* Rain splash effect */
.splash {
  position: absolute;
  bottom: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  transform-origin: center bottom;
  animation: splash 0.5s ease-out forwards;
  opacity: 0;
}

@keyframes splash {
  0% {
    transform: scale(0);
    opacity: 0.7;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

/* Snow */
.snow {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: white;
  box-shadow: 0 0 5px white;
  animation: snow-fall linear infinite;
  opacity: 0;
}

@keyframes snow-fall {
  0% {
    transform: translateY(-100px) translateX(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.8;
    transform: translateY(-50px) translateX(10px) rotate(45deg);
  }
  40% {
    transform: translateY(calc(40vh - 100px)) translateX(30px) rotate(90deg);
  }
  60% {
    transform: translateY(calc(60vh - 100px)) translateX(60px) rotate(180deg);
  }
  90% {
    opacity: 0.8;
    transform: translateY(calc(90vh - 100px)) translateX(80px) rotate(360deg);
  }
  100% {
    transform: translateY(calc(100vh + 100px)) translateX(100px) rotate(720deg);
    opacity: 0;
  }
}

/* Snow accumulation effect */
.snow-ground {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0;
  background-color: rgba(255, 255, 255, 0.7);
  transition: height 10s ease-in-out;
  z-index: 1;
}

/* Weather transition control */
.weather-transition {
  opacity: 0;
  transition: opacity 3s ease-in-out;
}

.weather-active {
  opacity: 1;
}

/* Add text shadow to improve readability against the night sky */
h1, h2, h3, p, a, li {
  text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.9), 0 0 10px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 0, 0, 0.7);
}

/* Decorative artistic elements */
.artistic-shape {
  position: absolute;
  pointer-events: none;
  opacity: 0.3;
  z-index: 1;
}

.circle {
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.triangle {
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
  background: rgba(255, 255, 255, 0.2);
}

.diamond {
  transform: rotate(45deg);
  background: linear-gradient(to right, rgba(255, 87, 34, 0.2), rgba(255, 171, 0, 0.2));
}

.wind-indicator {
  position: absolute;
  width: 100%;
  height: 100vh;
  top: 0;
  left: 0;
  pointer-events: none;
  opacity: 0.1;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(255, 255, 255, 0.1) 5%, 
    transparent 10%, 
    rgba(255, 255, 255, 0.05) 15%, 
    transparent 20%, 
    rgba(255, 255, 255, 0.05) 25%, 
    transparent 30%);
  animation: wind-movement 15s infinite linear;
}

@keyframes wind-movement {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}