body {
  margin: 0;
  font-family: 'Varela Round', sans-serif;
  background: #0d1117;
  color: #e6edf3;
  overflow-x: hidden;
  position: relative;
}

header, .content, .footer {
  max-width: 800px;
  margin: 40px auto;
  padding: 20px;
  text-align: center;
  position: relative;
  z-index: 1;
}

h1 {
  font-size: 2.4em;
}

h2 {
  font-size: 2em;
}

h3 {
  font-size: 1.6em;
  margin-bottom: 1em;
  text-align: right;
  color: #58a6ff;
}

p {
  font-size: 1.3em;
  line-height: 1.8;
  margin-bottom: 1.5em;
  text-align: right;
}

a {
  color: #58a6ff;
  text-decoration: none;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 2;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
  padding: 10px 20px;
  text-align: center;
  border-radius: 5px;
  margin: 20px auto;
  max-width: 800px;
}

.nav-square {
  width: 42px;
  height: 42px;
  background: linear-gradient(45deg, rgba(0,119,255,1), rgba(255,0,150,1));
  border-radius: 5px;
  display: inline-block;
  cursor: pointer;
}

.button {
  display: inline-block;
  background: #238636;
  color: white;
  padding: 14px 28px;
  font-size: 1.2em;
  border-radius: 20px;
  text-decoration: none;
  font-weight: bold;
  transition: border-radius 0.4s ease;
}
.button:hover {
  border-radius: 0px;
}

.glass-box {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 5px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  padding: 20px;
}

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

.square {
  position: absolute;
  bottom: -100px;
  background: linear-gradient(45deg, rgba(0,119,255,0.3), rgba(255,0,150,0.3));
  border-radius: 10px;
  opacity: 0;
  animation: floatUp ease-in forwards;
}

@keyframes floatUp {
  0% {
    transform: translateY(0px) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.7;
  }
  80% {
    opacity: 0;
  }
  100% {
    transform: translateY(-120vh) rotate(360deg);
    opacity: 0;
  }
}