body {
  margin: 0;
  padding: 0;
  font-family: 'Arial', sans-serif;
  background-color: #000;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  flex-direction: column;
  text-align: center;
  animation: fadeIn 2s ease-in-out;
}

@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

.floating, .particle {
  position: absolute;
  border-radius: 50%;
  animation: floatUp 10s infinite ease-in-out;
}

.floating {
  background: rgba(121, 184, 61, 0.2);
}

.particle {
  background: rgba(255, 255, 255, 0.3);
  width: 8px;
  height: 8px;
  animation: sparkle 6s infinite ease-in-out;
}

.circle1 {
  width: 100px;
  height: 100px;
  left: 10%;
  bottom: -150px;
  animation-delay: 0s;
}
.circle2 {
  width: 60px;
  height: 60px;
  left: 70%;
  bottom: -150px;
  animation-delay: 3s;
}
.circle3 {
  width: 80px;
  height: 80px;
  left: 40%;
  bottom: -150px;
  animation-delay: 5s;
}

.particle1 { left: 20%; top: 30%; animation-delay: 1s; }
.particle2 { left: 50%; top: 50%; animation-delay: 2s; }
.particle3 { left: 80%; top: 20%; animation-delay: 4s; }

@keyframes floatUp {
  0% { transform: translateY(0) scale(1); opacity: 0.5; }
  50% { transform: translateY(-400px) scale(1.2); opacity: 0.7; }
  100% { transform: translateY(-800px) scale(1); opacity: 0; }
}

@keyframes sparkle {
  0% { opacity: 0; transform: scale(0.5); }
  50% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(0.5); }
}

img.logo {
  max-width: 500px;
  height: auto;
  margin-bottom: 30px;
  animation: slideDown 1.5s ease;
  z-index: 1;
}

@keyframes slideDown {
  0% { transform: translateY(-50px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

h1 {
  font-size: 2.5em;
  margin-bottom: 20px;
  background: linear-gradient(90deg, #79b83d, #3c8a3b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeInUp 2s ease forwards;
  z-index: 1;
}

@keyframes fadeInUp {
  0% { transform: translateY(20px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

p.contact {
  margin: 8px 0;
  font-size: 1.2em;
  color: #ccc;
  z-index: 1;
}

footer {
  position: absolute;
  bottom: 20px;
  font-size: 0.9em;
  color: #777;
  z-index: 1;
}

@media (max-width: 600px) {
  h1 { font-size: 2em; }
  p.contact { font-size: 1em; }
  img.logo { max-width: 280px; }
}