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

body, html {
  height: 100%;
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(ellipse at center, #12131b 0%, #000000 80%);
  overflow: hidden;
  color: white;
}

#tsparticles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
  padding: 20px;
  z-index: 10;
}

.animated-title {
  font-size: 4rem;
  font-weight: 800;
  background: linear-gradient(120deg, #888, #aaa, #ccc, #aaa, #888);
  background-size: 400% 400%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 6s ease-in-out infinite;
}

@keyframes shimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.description {
  color: #aaa;
  font-size: 1.1rem;
  margin-top: 0.5rem;
  max-width: 600px;
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.btn-glow {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-size: 1rem;
  font-weight: 600;
  background: linear-gradient(135deg, #2b2d31, #1c1c1f);
  border: 1px solid #444;
  border-radius: 50px;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.05);
}



.btn-glow:hover {
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.1), 0 0 30px rgba(255, 255, 255, 0.07);
}

@keyframes glow {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

header {
  position: fixed;
  top: 20px; 
  left: 50%;
  transform: translateX(-50%);
  height: 70px;
  background: rgba(43, 45, 49, 0.85); 
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  padding: 0 30px;
  box-shadow: 0 2px 5px rgba(100, 100, 100, 0.3);
  z-index: 1000;
  user-select: none;
  font-weight: 600;
  color: white;
  font-family: 'Poppins', sans-serif;
  letter-spacing: 1.2px;
  backdrop-filter: saturate(180%) blur(12px);
  border-radius: 35px;
  min-width: 420px;
  max-width: 90vw;
  transition: box-shadow 0.3s ease;
}

header:hover {
  box-shadow: 0 2px 5px rgba(100, 100, 100, 0.6);
}



header .logo img {
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 2px solid #555;
  box-shadow: 0 0 12px rgba(100, 100, 100, 0.3);
  object-fit: cover;
  pointer-events: none;
}

header nav {
  display: flex;
  gap: 30px;
  align-items: center;
}

header nav a {
  color: #ddd;
  text-decoration: none;
  font-size: 1rem;
  padding: 10px 14px;
  border-radius: 8px;
  transition: color 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  font-weight: 600;
  user-select: none;
}

header nav a:hover {
  color: white;
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 8px rgba(200, 200, 200, 0.4);
}

header nav a::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 50%;
  width: 0;
  height: 2.5px;
  background: #888;
  transition: width 0.3s ease, left 0.3s ease;
  border-radius: 2px;
}

header nav a:hover::after {
  width: 80%;
  left: 10%;
}